head 1.1; branch 1.1.1; access; symbols netbsd-11-0-RC4:1.1.1.13 netbsd-11-0-RC3:1.1.1.13 netbsd-11-0-RC2:1.1.1.13 netbsd-11-0-RC1:1.1.1.13 perseant-exfatfs-base-20250801:1.1.1.13 netbsd-11:1.1.1.13.0.10 netbsd-11-base:1.1.1.13 netbsd-10-1-RELEASE:1.1.1.13 perseant-exfatfs-base-20240630:1.1.1.13 perseant-exfatfs:1.1.1.13.0.8 perseant-exfatfs-base:1.1.1.13 netbsd-8-3-RELEASE:1.1.1.10 netbsd-9-4-RELEASE:1.1.1.12 netbsd-10-0-RELEASE:1.1.1.13 netbsd-10-0-RC6:1.1.1.13 netbsd-10-0-RC5:1.1.1.13 netbsd-10-0-RC4:1.1.1.13 netbsd-10-0-RC3:1.1.1.13 netbsd-10-0-RC2:1.1.1.13 netbsd-10-0-RC1:1.1.1.13 netbsd-10:1.1.1.13.0.6 netbsd-10-base:1.1.1.13 netbsd-9-3-RELEASE:1.1.1.12 cjep_sun2x:1.1.1.13.0.4 cjep_sun2x-base:1.1.1.13 cjep_staticlib_x-base1:1.1.1.13 netbsd-9-2-RELEASE:1.1.1.12 cjep_staticlib_x:1.1.1.13.0.2 cjep_staticlib_x-base:1.1.1.13 netbsd-9-1-RELEASE:1.1.1.12 phil-wifi-20200421:1.1.1.13 phil-wifi-20200411:1.1.1.13 phil-wifi-20200406:1.1.1.13 netbsd-8-2-RELEASE:1.1.1.10 netbsd-9-0-RELEASE:1.1.1.12 netbsd-9-0-RC2:1.1.1.12 netbsd-9-0-RC1:1.1.1.12 netbsd-9:1.1.1.12.0.2 netbsd-9-base:1.1.1.12 phil-wifi-20190609:1.1.1.12 netbsd-8-1-RELEASE:1.1.1.10 netbsd-8-1-RC1:1.1.1.10 pgoyette-compat-merge-20190127:1.1.1.11.2.1 pgoyette-compat-20190127:1.1.1.12 pgoyette-compat-20190118:1.1.1.12 pgoyette-compat-1226:1.1.1.12 pgoyette-compat-1126:1.1.1.12 pgoyette-compat-1020:1.1.1.12 pgoyette-compat-0930:1.1.1.12 pgoyette-compat-0906:1.1.1.12 netbsd-7-2-RELEASE:1.1.1.7.2.1 pgoyette-compat-0728:1.1.1.12 clang-337282:1.1.1.12 netbsd-8-0-RELEASE:1.1.1.10 phil-wifi:1.1.1.11.0.4 phil-wifi-base:1.1.1.11 pgoyette-compat-0625:1.1.1.11 netbsd-8-0-RC2:1.1.1.10 pgoyette-compat-0521:1.1.1.11 pgoyette-compat-0502:1.1.1.11 pgoyette-compat-0422:1.1.1.11 netbsd-8-0-RC1:1.1.1.10 pgoyette-compat-0415:1.1.1.11 pgoyette-compat-0407:1.1.1.11 pgoyette-compat-0330:1.1.1.11 pgoyette-compat-0322:1.1.1.11 pgoyette-compat-0315:1.1.1.11 netbsd-7-1-2-RELEASE:1.1.1.7.2.1 pgoyette-compat:1.1.1.11.0.2 pgoyette-compat-base:1.1.1.11 netbsd-7-1-1-RELEASE:1.1.1.7.2.1 clang-319952:1.1.1.11 matt-nb8-mediatek:1.1.1.10.0.10 matt-nb8-mediatek-base:1.1.1.10 clang-309604:1.1.1.11 perseant-stdc-iso10646:1.1.1.10.0.8 perseant-stdc-iso10646-base:1.1.1.10 netbsd-8:1.1.1.10.0.6 netbsd-8-base:1.1.1.10 prg-localcount2-base3:1.1.1.10 prg-localcount2-base2:1.1.1.10 prg-localcount2-base1:1.1.1.10 prg-localcount2:1.1.1.10.0.4 prg-localcount2-base:1.1.1.10 pgoyette-localcount-20170426:1.1.1.10 bouyer-socketcan-base1:1.1.1.10 pgoyette-localcount-20170320:1.1.1.10 netbsd-7-1:1.1.1.7.2.1.0.6 netbsd-7-1-RELEASE:1.1.1.7.2.1 netbsd-7-1-RC2:1.1.1.7.2.1 clang-294123:1.1.1.10 netbsd-7-nhusb-base-20170116:1.1.1.7.2.1 bouyer-socketcan:1.1.1.10.0.2 bouyer-socketcan-base:1.1.1.10 clang-291444:1.1.1.10 pgoyette-localcount-20170107:1.1.1.9 netbsd-7-1-RC1:1.1.1.7.2.1 pgoyette-localcount-20161104:1.1.1.9 netbsd-7-0-2-RELEASE:1.1.1.7.2.1 localcount-20160914:1.1.1.9 netbsd-7-nhusb:1.1.1.7.2.1.0.4 netbsd-7-nhusb-base:1.1.1.7.2.1 clang-280599:1.1.1.9 pgoyette-localcount-20160806:1.1.1.9 pgoyette-localcount-20160726:1.1.1.9 pgoyette-localcount:1.1.1.9.0.2 pgoyette-localcount-base:1.1.1.9 netbsd-7-0-1-RELEASE:1.1.1.7.2.1 clang-261930:1.1.1.9 netbsd-7-0:1.1.1.7.2.1.0.2 netbsd-7-0-RELEASE:1.1.1.7.2.1 netbsd-7-0-RC3:1.1.1.7.2.1 netbsd-7-0-RC2:1.1.1.7.2.1 netbsd-7-0-RC1:1.1.1.7.2.1 clang-237755:1.1.1.8 clang-232565:1.1.1.8 clang-227398:1.1.1.8 tls-maxphys-base:1.1.1.7 tls-maxphys:1.1.1.7.0.4 netbsd-7:1.1.1.7.0.2 netbsd-7-base:1.1.1.7 clang-215315:1.1.1.7 clang-209886:1.1.1.6 yamt-pagecache:1.1.1.5.0.4 yamt-pagecache-base9:1.1.1.5 tls-earlyentropy:1.1.1.5.0.2 tls-earlyentropy-base:1.1.1.6 riastradh-xf86-video-intel-2-7-1-pre-2-21-15:1.1.1.5 riastradh-drm2-base3:1.1.1.5 clang-202566:1.1.1.5 clang-201163:1.1.1.4 clang-199312:1.1.1.3 clang-198450:1.1.1.2 clang-196603:1.1.1.1 clang-195771:1.1.1.1 LLVM:1.1.1; locks; strict; comment @// @; 1.1 date 2013.11.28.14.14.52; author joerg; state Exp; branches 1.1.1.1; next ; commitid ow8OybrawrB1f3fx; 1.1.1.1 date 2013.11.28.14.14.52; author joerg; state Exp; branches; next 1.1.1.2; commitid ow8OybrawrB1f3fx; 1.1.1.2 date 2014.01.05.15.39.25; author joerg; state Exp; branches; next 1.1.1.3; commitid wh3aCSIWykURqWjx; 1.1.1.3 date 2014.01.15.21.26.24; author joerg; state Exp; branches; next 1.1.1.4; commitid NQXlzzA0SPkc5glx; 1.1.1.4 date 2014.02.14.20.07.24; author joerg; state Exp; branches; next 1.1.1.5; commitid annVkZ1sc17rF6px; 1.1.1.5 date 2014.03.04.19.54.54; author joerg; state Exp; branches 1.1.1.5.2.1 1.1.1.5.4.1; next 1.1.1.6; commitid 29z1hJonZISIXprx; 1.1.1.6 date 2014.05.30.18.14.41; author joerg; state Exp; branches; next 1.1.1.7; commitid 8q0kdlBlCn09GACx; 1.1.1.7 date 2014.08.10.17.08.34; author joerg; state Exp; branches 1.1.1.7.2.1 1.1.1.7.4.1; next 1.1.1.8; commitid N85tXAN6Ex9VZPLx; 1.1.1.8 date 2015.01.29.19.57.30; author joerg; state Exp; branches; next 1.1.1.9; commitid mlISSizlPKvepX7y; 1.1.1.9 date 2016.02.27.22.12.04; author joerg; state Exp; branches 1.1.1.9.2.1; next 1.1.1.10; commitid tIimz3oDlh1NpBWy; 1.1.1.10 date 2017.01.11.10.33.39; author joerg; state Exp; branches; next 1.1.1.11; commitid CNnUNfII1jgNmxBz; 1.1.1.11 date 2017.08.01.19.34.53; author joerg; state Exp; branches 1.1.1.11.2.1 1.1.1.11.4.1; next 1.1.1.12; commitid pMuDy65V0VicSx1A; 1.1.1.12 date 2018.07.17.18.30.58; author joerg; state Exp; branches; next 1.1.1.13; commitid wDzL46ALjrCZgwKA; 1.1.1.13 date 2019.11.13.22.19.23; author joerg; state dead; branches; next ; commitid QD8YATxuNG34YJKB; 1.1.1.5.2.1 date 2014.08.10.07.08.08; author tls; state Exp; branches; next ; commitid t01A1TLTYxkpGMLx; 1.1.1.5.4.1 date 2014.03.04.19.54.54; author yamt; state dead; branches; next 1.1.1.5.4.2; commitid WSrDtL5nYAUyiyBx; 1.1.1.5.4.2 date 2014.05.22.16.18.27; author yamt; state Exp; branches; next ; commitid WSrDtL5nYAUyiyBx; 1.1.1.7.2.1 date 2015.06.04.20.04.28; author snj; state Exp; branches; next ; commitid yRnjq9fueSo6n9oy; 1.1.1.7.4.1 date 2014.08.10.17.08.34; author tls; state dead; branches; next 1.1.1.7.4.2; commitid jTnpym9Qu0o4R1Nx; 1.1.1.7.4.2 date 2014.08.19.23.47.28; author tls; state Exp; branches; next ; commitid jTnpym9Qu0o4R1Nx; 1.1.1.9.2.1 date 2017.03.20.06.52.38; author pgoyette; state Exp; branches; next ; commitid jjw7cAwgyKq7RfKz; 1.1.1.11.2.1 date 2018.07.28.04.33.19; author pgoyette; state Exp; branches; next ; commitid 1UP1xAIUxv1ZgRLA; 1.1.1.11.4.1 date 2019.06.10.21.45.23; author christos; state Exp; branches; next 1.1.1.11.4.2; commitid jtc8rnCzWiEEHGqB; 1.1.1.11.4.2 date 2020.04.13.07.46.33; author martin; state dead; branches; next ; commitid X01YhRUPVUDaec4C; desc @@ 1.1 log @Initial revision @ text @//===--- TokenAnnotator.cpp - Format C++ code -----------------------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// /// /// \file /// \brief This file implements a token annotator, i.e. creates /// \c AnnotatedTokens out of \c FormatTokens with required extra information. /// //===----------------------------------------------------------------------===// #include "TokenAnnotator.h" #include "clang/Basic/SourceManager.h" #include "llvm/Support/Debug.h" namespace clang { namespace format { namespace { /// \brief A parser that gathers additional information about tokens. /// /// The \c TokenAnnotator tries to match parenthesis and square brakets and /// store a parenthesis levels. It also tries to resolve matching "<" and ">" /// into template parameter lists. class AnnotatingParser { public: AnnotatingParser(const FormatStyle &Style, AnnotatedLine &Line, IdentifierInfo &Ident_in) : Style(Style), Line(Line), CurrentToken(Line.First), KeywordVirtualFound(false), AutoFound(false), Ident_in(Ident_in) { Contexts.push_back(Context(tok::unknown, 1, /*IsExpression=*/false)); } private: bool parseAngle() { if (CurrentToken == NULL) return false; ScopedContextCreator ContextCreator(*this, tok::less, 10); FormatToken *Left = CurrentToken->Previous; Contexts.back().IsExpression = false; while (CurrentToken != NULL) { if (CurrentToken->is(tok::greater)) { Left->MatchingParen = CurrentToken; CurrentToken->MatchingParen = Left; CurrentToken->Type = TT_TemplateCloser; next(); return true; } if (CurrentToken->isOneOf(tok::r_paren, tok::r_square, tok::r_brace, tok::question, tok::colon)) return false; // If a && or || is found and interpreted as a binary operator, this set // of angles is likely part of something like "a < b && c > d". If the // angles are inside an expression, the ||/&& might also be a binary // operator that was misinterpreted because we are parsing template // parameters. // FIXME: This is getting out of hand, write a decent parser. if (CurrentToken->Previous->isOneOf(tok::pipepipe, tok::ampamp) && (CurrentToken->Previous->Type == TT_BinaryOperator || Contexts[Contexts.size() - 2].IsExpression) && Line.First->isNot(tok::kw_template)) return false; updateParameterCount(Left, CurrentToken); if (!consumeToken()) return false; } return false; } bool parseParens(bool LookForDecls = false) { if (CurrentToken == NULL) return false; ScopedContextCreator ContextCreator(*this, tok::l_paren, 1); // FIXME: This is a bit of a hack. Do better. Contexts.back().ColonIsForRangeExpr = Contexts.size() == 2 && Contexts[0].ColonIsForRangeExpr; bool StartsObjCMethodExpr = false; FormatToken *Left = CurrentToken->Previous; if (CurrentToken->is(tok::caret)) { // ^( starts a block. Left->Type = TT_ObjCBlockLParen; } else if (FormatToken *MaybeSel = Left->Previous) { // @@selector( starts a selector. if (MaybeSel->isObjCAtKeyword(tok::objc_selector) && MaybeSel->Previous && MaybeSel->Previous->is(tok::at)) { StartsObjCMethodExpr = true; } } if (Left->Previous && Left->Previous->isOneOf(tok::kw_static_assert, tok::kw_if, tok::kw_while)) { // static_assert, if and while usually contain expressions. Contexts.back().IsExpression = true; } else if (Left->Previous && Left->Previous->is(tok::r_square) && Left->Previous->MatchingParen && Left->Previous->MatchingParen->Type == TT_LambdaLSquare) { // This is a parameter list of a lambda expression. Contexts.back().IsExpression = false; } if (StartsObjCMethodExpr) { Contexts.back().ColonIsObjCMethodExpr = true; Left->Type = TT_ObjCMethodExpr; } bool MightBeFunctionType = CurrentToken->is(tok::star); bool HasMultipleLines = false; bool HasMultipleParametersOnALine = false; while (CurrentToken != NULL) { // LookForDecls is set when "if (" has been seen. Check for // 'identifier' '*' 'identifier' followed by not '=' -- this // '*' has to be a binary operator but determineStarAmpUsage() will // categorize it as an unary operator, so set the right type here. if (LookForDecls && CurrentToken->Next) { FormatToken *Prev = CurrentToken->getPreviousNonComment(); if (Prev) { FormatToken *PrevPrev = Prev->getPreviousNonComment(); FormatToken *Next = CurrentToken->Next; if (PrevPrev && PrevPrev->is(tok::identifier) && Prev->isOneOf(tok::star, tok::amp, tok::ampamp) && CurrentToken->is(tok::identifier) && Next->isNot(tok::equal)) { Prev->Type = TT_BinaryOperator; LookForDecls = false; } } } if (CurrentToken->Previous->Type == TT_PointerOrReference && CurrentToken->Previous->Previous->isOneOf(tok::l_paren, tok::coloncolon)) MightBeFunctionType = true; if (CurrentToken->is(tok::r_paren)) { if (MightBeFunctionType && CurrentToken->Next && (CurrentToken->Next->is(tok::l_paren) || (CurrentToken->Next->is(tok::l_square) && !Contexts.back().IsExpression))) Left->Type = TT_FunctionTypeLParen; Left->MatchingParen = CurrentToken; CurrentToken->MatchingParen = Left; if (StartsObjCMethodExpr) { CurrentToken->Type = TT_ObjCMethodExpr; if (Contexts.back().FirstObjCSelectorName != NULL) { Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = Contexts.back().LongestObjCSelectorName; } } if (!HasMultipleLines) Left->PackingKind = PPK_Inconclusive; else if (HasMultipleParametersOnALine) Left->PackingKind = PPK_BinPacked; else Left->PackingKind = PPK_OnePerLine; next(); return true; } if (CurrentToken->isOneOf(tok::r_square, tok::r_brace)) return false; updateParameterCount(Left, CurrentToken); if (CurrentToken->is(tok::comma) && CurrentToken->Next && !CurrentToken->Next->HasUnescapedNewline && !CurrentToken->Next->isTrailingComment()) HasMultipleParametersOnALine = true; if (!consumeToken()) return false; if (CurrentToken && CurrentToken->HasUnescapedNewline) HasMultipleLines = true; } return false; } bool parseSquare() { if (!CurrentToken) return false; // A '[' could be an index subscript (after an identifier or after // ')' or ']'), it could be the start of an Objective-C method // expression, or it could the the start of an Objective-C array literal. FormatToken *Left = CurrentToken->Previous; FormatToken *Parent = Left->getPreviousNonComment(); bool StartsObjCMethodExpr = Contexts.back().CanBeExpression && Left->Type != TT_LambdaLSquare && (!Parent || Parent->isOneOf(tok::colon, tok::l_square, tok::l_paren, tok::kw_return, tok::kw_throw) || Parent->isUnaryOperator() || Parent->Type == TT_ObjCForIn || Parent->Type == TT_CastRParen || getBinOpPrecedence(Parent->Tok.getKind(), true, true) > prec::Unknown); ScopedContextCreator ContextCreator(*this, tok::l_square, 10); Contexts.back().IsExpression = true; bool ColonFound = false; if (StartsObjCMethodExpr) { Contexts.back().ColonIsObjCMethodExpr = true; Left->Type = TT_ObjCMethodExpr; } else if (Parent && Parent->is(tok::at)) { Left->Type = TT_ArrayInitializerLSquare; } else if (Left->Type == TT_Unknown) { Left->Type = TT_ArraySubscriptLSquare; } while (CurrentToken != NULL) { if (CurrentToken->is(tok::r_square)) { if (CurrentToken->Next && CurrentToken->Next->is(tok::l_paren) && Left->Type == TT_ObjCMethodExpr) { // An ObjC method call is rarely followed by an open parenthesis. // FIXME: Do we incorrectly label ":" with this? StartsObjCMethodExpr = false; Left->Type = TT_Unknown; } if (StartsObjCMethodExpr) { CurrentToken->Type = TT_ObjCMethodExpr; // determineStarAmpUsage() thinks that '*' '[' is allocating an // array of pointers, but if '[' starts a selector then '*' is a // binary operator. if (Parent != NULL && Parent->Type == TT_PointerOrReference) Parent->Type = TT_BinaryOperator; } Left->MatchingParen = CurrentToken; CurrentToken->MatchingParen = Left; if (Contexts.back().FirstObjCSelectorName != NULL) Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = Contexts.back().LongestObjCSelectorName; next(); return true; } if (CurrentToken->isOneOf(tok::r_paren, tok::r_brace)) return false; if (CurrentToken->is(tok::colon)) ColonFound = true; if (CurrentToken->is(tok::comma) && (Left->Type == TT_ArraySubscriptLSquare || (Left->Type == TT_ObjCMethodExpr && !ColonFound))) Left->Type = TT_ArrayInitializerLSquare; updateParameterCount(Left, CurrentToken); if (!consumeToken()) return false; } return false; } bool parseBrace() { if (CurrentToken != NULL) { FormatToken *Left = CurrentToken->Previous; ScopedContextCreator ContextCreator(*this, tok::l_brace, 1); Contexts.back().ColonIsDictLiteral = true; while (CurrentToken != NULL) { if (CurrentToken->is(tok::r_brace)) { Left->MatchingParen = CurrentToken; CurrentToken->MatchingParen = Left; next(); return true; } if (CurrentToken->isOneOf(tok::r_paren, tok::r_square)) return false; updateParameterCount(Left, CurrentToken); if (CurrentToken->is(tok::colon)) Left->Type = TT_DictLiteral; if (!consumeToken()) return false; } } // No closing "}" found, this probably starts a definition. Line.StartsDefinition = true; return true; } void updateParameterCount(FormatToken *Left, FormatToken *Current) { if (Current->is(tok::comma)) { ++Left->ParameterCount; if (!Left->Role) Left->Role.reset(new CommaSeparatedList(Style)); Left->Role->CommaFound(Current); } else if (Left->ParameterCount == 0 && Current->isNot(tok::comment)) { Left->ParameterCount = 1; } } bool parseConditional() { while (CurrentToken != NULL) { if (CurrentToken->is(tok::colon)) { CurrentToken->Type = TT_ConditionalExpr; next(); return true; } if (!consumeToken()) return false; } return false; } bool parseTemplateDeclaration() { if (CurrentToken != NULL && CurrentToken->is(tok::less)) { CurrentToken->Type = TT_TemplateOpener; next(); if (!parseAngle()) return false; if (CurrentToken != NULL) CurrentToken->Previous->ClosesTemplateDeclaration = true; return true; } return false; } bool consumeToken() { FormatToken *Tok = CurrentToken; next(); switch (Tok->Tok.getKind()) { case tok::plus: case tok::minus: if (Tok->Previous == NULL && Line.MustBeDeclaration) Tok->Type = TT_ObjCMethodSpecifier; break; case tok::colon: if (Tok->Previous == NULL) return false; // Colons from ?: are handled in parseConditional(). if (Tok->Previous->is(tok::r_paren) && Contexts.size() == 1) { Tok->Type = TT_CtorInitializerColon; } else if (Contexts.back().ColonIsDictLiteral) { Tok->Type = TT_DictLiteral; } else if (Contexts.back().ColonIsObjCMethodExpr || Line.First->Type == TT_ObjCMethodSpecifier) { Tok->Type = TT_ObjCMethodExpr; Tok->Previous->Type = TT_ObjCSelectorName; if (Tok->Previous->ColumnWidth > Contexts.back().LongestObjCSelectorName) { Contexts.back().LongestObjCSelectorName = Tok->Previous->ColumnWidth; } if (Contexts.back().FirstObjCSelectorName == NULL) Contexts.back().FirstObjCSelectorName = Tok->Previous; } else if (Contexts.back().ColonIsForRangeExpr) { Tok->Type = TT_RangeBasedForLoopColon; } else if (CurrentToken != NULL && CurrentToken->is(tok::numeric_constant)) { Tok->Type = TT_BitFieldColon; } else if (Contexts.size() == 1 && Line.First->isNot(tok::kw_enum)) { Tok->Type = TT_InheritanceColon; } else if (Contexts.back().ContextKind == tok::l_paren) { Tok->Type = TT_InlineASMColon; } break; case tok::kw_if: case tok::kw_while: if (CurrentToken != NULL && CurrentToken->is(tok::l_paren)) { next(); if (!parseParens(/*LookForDecls=*/true)) return false; } break; case tok::kw_for: Contexts.back().ColonIsForRangeExpr = true; next(); if (!parseParens()) return false; break; case tok::l_paren: if (!parseParens()) return false; if (Line.MustBeDeclaration && Contexts.size() == 1 && !Contexts.back().IsExpression) Line.MightBeFunctionDecl = true; break; case tok::l_square: if (!parseSquare()) return false; break; case tok::l_brace: if (!parseBrace()) return false; break; case tok::less: if (Tok->Previous && !Tok->Previous->Tok.isLiteral() && parseAngle()) Tok->Type = TT_TemplateOpener; else { Tok->Type = TT_BinaryOperator; CurrentToken = Tok; next(); } break; case tok::r_paren: case tok::r_square: return false; case tok::r_brace: // Lines can start with '}'. if (Tok->Previous != NULL) return false; break; case tok::greater: Tok->Type = TT_BinaryOperator; break; case tok::kw_operator: while (CurrentToken && !CurrentToken->isOneOf(tok::l_paren, tok::semi, tok::r_paren)) { if (CurrentToken->isOneOf(tok::star, tok::amp)) CurrentToken->Type = TT_PointerOrReference; consumeToken(); if (CurrentToken && CurrentToken->Previous->Type == TT_BinaryOperator) CurrentToken->Previous->Type = TT_OverloadedOperator; } if (CurrentToken) { CurrentToken->Type = TT_OverloadedOperatorLParen; if (CurrentToken->Previous->Type == TT_BinaryOperator) CurrentToken->Previous->Type = TT_OverloadedOperator; } break; case tok::question: parseConditional(); break; case tok::kw_template: parseTemplateDeclaration(); break; case tok::identifier: if (Line.First->is(tok::kw_for) && Tok->Tok.getIdentifierInfo() == &Ident_in) Tok->Type = TT_ObjCForIn; break; case tok::comma: if (Contexts.back().FirstStartOfName) Contexts.back().FirstStartOfName->PartOfMultiVariableDeclStmt = true; if (Contexts.back().InCtorInitializer) Tok->Type = TT_CtorInitializerComma; break; default: break; } return true; } void parseIncludeDirective() { next(); if (CurrentToken != NULL && CurrentToken->is(tok::less)) { next(); while (CurrentToken != NULL) { if (CurrentToken->isNot(tok::comment) || CurrentToken->Next) CurrentToken->Type = TT_ImplicitStringLiteral; next(); } } else { while (CurrentToken != NULL) { if (CurrentToken->is(tok::string_literal)) // Mark these string literals as "implicit" literals, too, so that // they are not split or line-wrapped. CurrentToken->Type = TT_ImplicitStringLiteral; next(); } } } void parseWarningOrError() { next(); // We still want to format the whitespace left of the first token of the // warning or error. next(); while (CurrentToken != NULL) { CurrentToken->Type = TT_ImplicitStringLiteral; next(); } } void parsePreprocessorDirective() { next(); if (CurrentToken == NULL) return; if (CurrentToken->Tok.is(tok::numeric_constant)) { CurrentToken->SpacesRequiredBefore = 1; return; } // Hashes in the middle of a line can lead to any strange token // sequence. if (CurrentToken->Tok.getIdentifierInfo() == NULL) return; switch (CurrentToken->Tok.getIdentifierInfo()->getPPKeywordID()) { case tok::pp_include: case tok::pp_import: parseIncludeDirective(); break; case tok::pp_error: case tok::pp_warning: parseWarningOrError(); break; case tok::pp_if: case tok::pp_elif: parseLine(); break; default: break; } while (CurrentToken != NULL) next(); } public: LineType parseLine() { if (CurrentToken->is(tok::hash)) { parsePreprocessorDirective(); return LT_PreprocessorDirective; } while (CurrentToken != NULL) { if (CurrentToken->is(tok::kw_virtual)) KeywordVirtualFound = true; if (!consumeToken()) return LT_Invalid; } if (KeywordVirtualFound) return LT_VirtualFunctionDecl; if (Line.First->Type == TT_ObjCMethodSpecifier) { if (Contexts.back().FirstObjCSelectorName != NULL) Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = Contexts.back().LongestObjCSelectorName; return LT_ObjCMethodDecl; } return LT_Other; } private: void next() { if (CurrentToken != NULL) { determineTokenType(*CurrentToken); CurrentToken->BindingStrength = Contexts.back().BindingStrength; } if (CurrentToken != NULL) CurrentToken = CurrentToken->Next; if (CurrentToken != NULL) { // Reset token type in case we have already looked at it and then // recovered from an error (e.g. failure to find the matching >). if (CurrentToken->Type != TT_LambdaLSquare && CurrentToken->Type != TT_ImplicitStringLiteral) CurrentToken->Type = TT_Unknown; if (CurrentToken->Role) CurrentToken->Role.reset(NULL); CurrentToken->FakeLParens.clear(); CurrentToken->FakeRParens = 0; } } /// \brief A struct to hold information valid in a specific context, e.g. /// a pair of parenthesis. struct Context { Context(tok::TokenKind ContextKind, unsigned BindingStrength, bool IsExpression) : ContextKind(ContextKind), BindingStrength(BindingStrength), LongestObjCSelectorName(0), ColonIsForRangeExpr(false), ColonIsDictLiteral(false), ColonIsObjCMethodExpr(false), FirstObjCSelectorName(NULL), FirstStartOfName(NULL), IsExpression(IsExpression), CanBeExpression(true), InCtorInitializer(false) {} tok::TokenKind ContextKind; unsigned BindingStrength; unsigned LongestObjCSelectorName; bool ColonIsForRangeExpr; bool ColonIsDictLiteral; bool ColonIsObjCMethodExpr; FormatToken *FirstObjCSelectorName; FormatToken *FirstStartOfName; bool IsExpression; bool CanBeExpression; bool InCtorInitializer; }; /// \brief Puts a new \c Context onto the stack \c Contexts for the lifetime /// of each instance. struct ScopedContextCreator { AnnotatingParser &P; ScopedContextCreator(AnnotatingParser &P, tok::TokenKind ContextKind, unsigned Increase) : P(P) { P.Contexts.push_back(Context(ContextKind, P.Contexts.back().BindingStrength + Increase, P.Contexts.back().IsExpression)); } ~ScopedContextCreator() { P.Contexts.pop_back(); } }; void determineTokenType(FormatToken &Current) { if (Current.getPrecedence() == prec::Assignment && !Line.First->isOneOf(tok::kw_template, tok::kw_using) && (!Current.Previous || Current.Previous->isNot(tok::kw_operator))) { Contexts.back().IsExpression = true; for (FormatToken *Previous = Current.Previous; Previous && !Previous->isOneOf(tok::comma, tok::semi); Previous = Previous->Previous) { if (Previous->is(tok::r_square)) Previous = Previous->MatchingParen; if (Previous->Type == TT_BinaryOperator && Previous->isOneOf(tok::star, tok::amp)) { Previous->Type = TT_PointerOrReference; } } } else if (Current.isOneOf(tok::kw_return, tok::kw_throw) || (Current.is(tok::l_paren) && !Line.MustBeDeclaration && !Line.InPPDirective && (!Current.Previous || !Current.Previous->isOneOf(tok::kw_for, tok::kw_catch)))) { Contexts.back().IsExpression = true; } else if (Current.isOneOf(tok::r_paren, tok::greater, tok::comma)) { for (FormatToken *Previous = Current.Previous; Previous && Previous->isOneOf(tok::star, tok::amp); Previous = Previous->Previous) Previous->Type = TT_PointerOrReference; } else if (Current.Previous && Current.Previous->Type == TT_CtorInitializerColon) { Contexts.back().IsExpression = true; Contexts.back().InCtorInitializer = true; } else if (Current.is(tok::kw_new)) { Contexts.back().CanBeExpression = false; } else if (Current.is(tok::semi) || Current.is(tok::exclaim)) { // This should be the condition or increment in a for-loop. Contexts.back().IsExpression = true; } if (Current.Type == TT_Unknown) { // Line.MightBeFunctionDecl can only be true after the parentheses of a // function declaration have been found. In this case, 'Current' is a // trailing token of this declaration and thus cannot be a name. if (isStartOfName(Current) && !Line.MightBeFunctionDecl) { Contexts.back().FirstStartOfName = &Current; Current.Type = TT_StartOfName; } else if (Current.is(tok::kw_auto)) { AutoFound = true; } else if (Current.is(tok::arrow) && AutoFound && Line.MustBeDeclaration) { Current.Type = TT_TrailingReturnArrow; } else if (Current.isOneOf(tok::star, tok::amp, tok::ampamp)) { Current.Type = determineStarAmpUsage(Current, Contexts.back().CanBeExpression && Contexts.back().IsExpression); } else if (Current.isOneOf(tok::minus, tok::plus, tok::caret)) { Current.Type = determinePlusMinusCaretUsage(Current); } else if (Current.isOneOf(tok::minusminus, tok::plusplus)) { Current.Type = determineIncrementUsage(Current); } else if (Current.is(tok::exclaim)) { Current.Type = TT_UnaryOperator; } else if (Current.isBinaryOperator() && (!Current.Previous || Current.Previous->isNot(tok::l_square))) { Current.Type = TT_BinaryOperator; } else if (Current.is(tok::comment)) { if (Current.TokenText.startswith("//")) Current.Type = TT_LineComment; else Current.Type = TT_BlockComment; } else if (Current.is(tok::r_paren)) { FormatToken *LeftOfParens = NULL; if (Current.MatchingParen) LeftOfParens = Current.MatchingParen->getPreviousNonComment(); bool IsCast = false; bool ParensAreEmpty = Current.Previous == Current.MatchingParen; bool ParensAreType = !Current.Previous || Current.Previous->Type == TT_PointerOrReference || Current.Previous->Type == TT_TemplateCloser || isSimpleTypeSpecifier(*Current.Previous); bool ParensCouldEndDecl = Current.Next && Current.Next->isOneOf(tok::equal, tok::semi, tok::l_brace); bool IsSizeOfOrAlignOf = LeftOfParens && LeftOfParens->isOneOf(tok::kw_sizeof, tok::kw_alignof); if (ParensAreType && !ParensCouldEndDecl && !IsSizeOfOrAlignOf && (Contexts.back().IsExpression || (Current.Next && Current.Next->isBinaryOperator()))) IsCast = true; if (Current.Next && Current.Next->isNot(tok::string_literal) && (Current.Next->Tok.isLiteral() || Current.Next->isOneOf(tok::kw_sizeof, tok::kw_alignof))) IsCast = true; // If there is an identifier after the (), it is likely a cast, unless // there is also an identifier before the (). if (LeftOfParens && (LeftOfParens->Tok.getIdentifierInfo() == NULL || LeftOfParens->is(tok::kw_return)) && LeftOfParens->Type != TT_OverloadedOperator && LeftOfParens->Type != TT_TemplateCloser && Current.Next && Current.Next->is(tok::identifier)) IsCast = true; if (IsCast && !ParensAreEmpty) Current.Type = TT_CastRParen; } else if (Current.is(tok::at) && Current.Next) { switch (Current.Next->Tok.getObjCKeywordID()) { case tok::objc_interface: case tok::objc_implementation: case tok::objc_protocol: Current.Type = TT_ObjCDecl; break; case tok::objc_property: Current.Type = TT_ObjCProperty; break; default: break; } } else if (Current.is(tok::period)) { FormatToken *PreviousNoComment = Current.getPreviousNonComment(); if (PreviousNoComment && PreviousNoComment->isOneOf(tok::comma, tok::l_brace)) Current.Type = TT_DesignatedInitializerPeriod; } } } /// \brief Take a guess at whether \p Tok starts a name of a function or /// variable declaration. /// /// This is a heuristic based on whether \p Tok is an identifier following /// something that is likely a type. bool isStartOfName(const FormatToken &Tok) { if (Tok.isNot(tok::identifier) || Tok.Previous == NULL) return false; // Skip "const" as it does not have an influence on whether this is a name. FormatToken *PreviousNotConst = Tok.Previous; while (PreviousNotConst != NULL && PreviousNotConst->is(tok::kw_const)) PreviousNotConst = PreviousNotConst->Previous; if (PreviousNotConst == NULL) return false; bool IsPPKeyword = PreviousNotConst->is(tok::identifier) && PreviousNotConst->Previous && PreviousNotConst->Previous->is(tok::hash); if (PreviousNotConst->Type == TT_TemplateCloser) return PreviousNotConst && PreviousNotConst->MatchingParen && PreviousNotConst->MatchingParen->Previous && PreviousNotConst->MatchingParen->Previous->isNot(tok::kw_template); return (!IsPPKeyword && PreviousNotConst->is(tok::identifier)) || PreviousNotConst->Type == TT_PointerOrReference || isSimpleTypeSpecifier(*PreviousNotConst); } /// \brief Return the type of the given token assuming it is * or &. TokenType determineStarAmpUsage(const FormatToken &Tok, bool IsExpression) { const FormatToken *PrevToken = Tok.getPreviousNonComment(); if (PrevToken == NULL) return TT_UnaryOperator; const FormatToken *NextToken = Tok.getNextNonComment(); if (NextToken == NULL) return TT_Unknown; if (PrevToken->is(tok::coloncolon) || (PrevToken->is(tok::l_paren) && !IsExpression)) return TT_PointerOrReference; if (PrevToken->isOneOf(tok::l_paren, tok::l_square, tok::l_brace, tok::comma, tok::semi, tok::kw_return, tok::colon, tok::equal, tok::kw_delete, tok::kw_sizeof) || PrevToken->Type == TT_BinaryOperator || PrevToken->Type == TT_UnaryOperator || PrevToken->Type == TT_CastRParen) return TT_UnaryOperator; if (NextToken->is(tok::l_square)) return TT_PointerOrReference; if (PrevToken->is(tok::r_paren) && PrevToken->MatchingParen && PrevToken->MatchingParen->Previous && PrevToken->MatchingParen->Previous->is(tok::kw_typeof)) return TT_PointerOrReference; if (PrevToken->Tok.isLiteral() || PrevToken->isOneOf(tok::r_paren, tok::r_square) || NextToken->Tok.isLiteral() || NextToken->isUnaryOperator()) return TT_BinaryOperator; // It is very unlikely that we are going to find a pointer or reference type // definition on the RHS of an assignment. if (IsExpression) return TT_BinaryOperator; return TT_PointerOrReference; } TokenType determinePlusMinusCaretUsage(const FormatToken &Tok) { const FormatToken *PrevToken = Tok.getPreviousNonComment(); if (PrevToken == NULL || PrevToken->Type == TT_CastRParen) return TT_UnaryOperator; // Use heuristics to recognize unary operators. if (PrevToken->isOneOf(tok::equal, tok::l_paren, tok::comma, tok::l_square, tok::question, tok::colon, tok::kw_return, tok::kw_case, tok::at, tok::l_brace)) return TT_UnaryOperator; // There can't be two consecutive binary operators. if (PrevToken->Type == TT_BinaryOperator) return TT_UnaryOperator; // Fall back to marking the token as binary operator. return TT_BinaryOperator; } /// \brief Determine whether ++/-- are pre- or post-increments/-decrements. TokenType determineIncrementUsage(const FormatToken &Tok) { const FormatToken *PrevToken = Tok.getPreviousNonComment(); if (PrevToken == NULL || PrevToken->Type == TT_CastRParen) return TT_UnaryOperator; if (PrevToken->isOneOf(tok::r_paren, tok::r_square, tok::identifier)) return TT_TrailingUnaryOperator; return TT_UnaryOperator; } // FIXME: This is copy&pasted from Sema. Put it in a common place and remove // duplication. /// \brief Determine whether the token kind starts a simple-type-specifier. bool isSimpleTypeSpecifier(const FormatToken &Tok) const { switch (Tok.Tok.getKind()) { case tok::kw_short: case tok::kw_long: case tok::kw___int64: case tok::kw___int128: case tok::kw_signed: case tok::kw_unsigned: case tok::kw_void: case tok::kw_char: case tok::kw_int: case tok::kw_half: case tok::kw_float: case tok::kw_double: case tok::kw_wchar_t: case tok::kw_bool: case tok::kw___underlying_type: case tok::annot_typename: case tok::kw_char16_t: case tok::kw_char32_t: case tok::kw_typeof: case tok::kw_decltype: return true; default: return false; } } SmallVector Contexts; const FormatStyle &Style; AnnotatedLine &Line; FormatToken *CurrentToken; bool KeywordVirtualFound; bool AutoFound; IdentifierInfo &Ident_in; }; static int PrecedenceUnaryOperator = prec::PointerToMember + 1; static int PrecedenceArrowAndPeriod = prec::PointerToMember + 2; /// \brief Parses binary expressions by inserting fake parenthesis based on /// operator precedence. class ExpressionParser { public: ExpressionParser(AnnotatedLine &Line) : Current(Line.First) { // Skip leading "}", e.g. in "} else if (...) {". if (Current->is(tok::r_brace)) next(); } /// \brief Parse expressions with the given operatore precedence. void parse(int Precedence = 0) { // Skip 'return' and ObjC selector colons as they are not part of a binary // expression. while (Current && (Current->is(tok::kw_return) || (Current->is(tok::colon) && Current->Type == TT_ObjCMethodExpr))) next(); if (Current == NULL || Precedence > PrecedenceArrowAndPeriod) return; // Conditional expressions need to be parsed separately for proper nesting. if (Precedence == prec::Conditional) { parseConditionalExpr(); return; } // Parse unary operators, which all have a higher precedence than binary // operators. if (Precedence == PrecedenceUnaryOperator) { parseUnaryOperator(); return; } FormatToken *Start = Current; FormatToken *LatestOperator = NULL; while (Current) { // Consume operators with higher precedence. parse(Precedence + 1); int CurrentPrecedence = getCurrentPrecedence(); if (Current && Current->Type == TT_ObjCSelectorName && Precedence == CurrentPrecedence) Start = Current; // At the end of the line or when an operator with higher precedence is // found, insert fake parenthesis and return. if (Current == NULL || Current->closesScope() || (CurrentPrecedence != -1 && CurrentPrecedence < Precedence)) { if (LatestOperator) { if (Precedence == PrecedenceArrowAndPeriod) { LatestOperator->LastInChainOfCalls = true; // Call expressions don't have a binary operator precedence. addFakeParenthesis(Start, prec::Unknown); } else { addFakeParenthesis(Start, prec::Level(Precedence)); } } return; } // Consume scopes: (), [], <> and {} if (Current->opensScope()) { while (Current && !Current->closesScope()) { next(); parse(); } next(); } else { // Operator found. if (CurrentPrecedence == Precedence) LatestOperator = Current; next(); } } } private: /// \brief Gets the precedence (+1) of the given token for binary operators /// and other tokens that we treat like binary operators. int getCurrentPrecedence() { if (Current) { if (Current->Type == TT_ConditionalExpr) return prec::Conditional; else if (Current->is(tok::semi) || Current->Type == TT_InlineASMColon || Current->Type == TT_ObjCSelectorName) return 0; else if (Current->Type == TT_BinaryOperator || Current->is(tok::comma)) return Current->getPrecedence(); else if (Current->isOneOf(tok::period, tok::arrow)) return PrecedenceArrowAndPeriod; } return -1; } void addFakeParenthesis(FormatToken *Start, prec::Level Precedence) { Start->FakeLParens.push_back(Precedence); if (Precedence > prec::Unknown) Start->StartsBinaryExpression = true; if (Current) { ++Current->Previous->FakeRParens; if (Precedence > prec::Unknown) Current->Previous->EndsBinaryExpression = true; } } /// \brief Parse unary operator expressions and surround them with fake /// parentheses if appropriate. void parseUnaryOperator() { if (Current == NULL || Current->Type != TT_UnaryOperator) { parse(PrecedenceArrowAndPeriod); return; } FormatToken *Start = Current; next(); parseUnaryOperator(); // The actual precedence doesn't matter. addFakeParenthesis(Start, prec::Unknown); } void parseConditionalExpr() { FormatToken *Start = Current; parse(prec::LogicalOr); if (!Current || !Current->is(tok::question)) return; next(); parse(prec::LogicalOr); if (!Current || Current->Type != TT_ConditionalExpr) return; next(); parseConditionalExpr(); addFakeParenthesis(Start, prec::Conditional); } void next() { if (Current) Current = Current->Next; while (Current && Current->isTrailingComment()) Current = Current->Next; } FormatToken *Current; }; } // end anonymous namespace void TokenAnnotator::setCommentLineLevels(SmallVectorImpl &Lines) { const AnnotatedLine *NextNonCommentLine = NULL; for (SmallVectorImpl::reverse_iterator I = Lines.rbegin(), E = Lines.rend(); I != E; ++I) { if (NextNonCommentLine && (*I)->First->is(tok::comment) && (*I)->First->Next == NULL) (*I)->Level = NextNonCommentLine->Level; else NextNonCommentLine = (*I)->First->isNot(tok::r_brace) ? (*I) : NULL; setCommentLineLevels((*I)->Children); } } void TokenAnnotator::annotate(AnnotatedLine &Line) { for (SmallVectorImpl::iterator I = Line.Children.begin(), E = Line.Children.end(); I != E; ++I) { annotate(**I); } AnnotatingParser Parser(Style, Line, Ident_in); Line.Type = Parser.parseLine(); if (Line.Type == LT_Invalid) return; ExpressionParser ExprParser(Line); ExprParser.parse(); if (Line.First->Type == TT_ObjCMethodSpecifier) Line.Type = LT_ObjCMethodDecl; else if (Line.First->Type == TT_ObjCDecl) Line.Type = LT_ObjCDecl; else if (Line.First->Type == TT_ObjCProperty) Line.Type = LT_ObjCProperty; Line.First->SpacesRequiredBefore = 1; Line.First->CanBreakBefore = Line.First->MustBreakBefore; } void TokenAnnotator::calculateFormattingInformation(AnnotatedLine &Line) { Line.First->TotalLength = Line.First->IsMultiline ? Style.ColumnLimit : Line.First->ColumnWidth; if (!Line.First->Next) return; FormatToken *Current = Line.First->Next; bool InFunctionDecl = Line.MightBeFunctionDecl; while (Current != NULL) { if (Current->Type == TT_LineComment) Current->SpacesRequiredBefore = Style.SpacesBeforeTrailingComments; else if (Current->SpacesRequiredBefore == 0 && spaceRequiredBefore(Line, *Current)) Current->SpacesRequiredBefore = 1; Current->MustBreakBefore = Current->MustBreakBefore || mustBreakBefore(Line, *Current); Current->CanBreakBefore = Current->MustBreakBefore || canBreakBefore(Line, *Current); if (Current->MustBreakBefore || !Current->Children.empty() || Current->IsMultiline) Current->TotalLength = Current->Previous->TotalLength + Style.ColumnLimit; else Current->TotalLength = Current->Previous->TotalLength + Current->ColumnWidth + Current->SpacesRequiredBefore; if (Current->Type == TT_CtorInitializerColon) InFunctionDecl = false; // FIXME: Only calculate this if CanBreakBefore is true once static // initializers etc. are sorted out. // FIXME: Move magic numbers to a better place. Current->SplitPenalty = 20 * Current->BindingStrength + splitPenalty(Line, *Current, InFunctionDecl); Current = Current->Next; } calculateUnbreakableTailLengths(Line); for (Current = Line.First; Current != NULL; Current = Current->Next) { if (Current->Role) Current->Role->precomputeFormattingInfos(Current); } DEBUG({ printDebugInfo(Line); }); for (SmallVectorImpl::iterator I = Line.Children.begin(), E = Line.Children.end(); I != E; ++I) { calculateFormattingInformation(**I); } } void TokenAnnotator::calculateUnbreakableTailLengths(AnnotatedLine &Line) { unsigned UnbreakableTailLength = 0; FormatToken *Current = Line.Last; while (Current != NULL) { Current->UnbreakableTailLength = UnbreakableTailLength; if (Current->CanBreakBefore || Current->isOneOf(tok::comment, tok::string_literal)) { UnbreakableTailLength = 0; } else { UnbreakableTailLength += Current->ColumnWidth + Current->SpacesRequiredBefore; } Current = Current->Previous; } } unsigned TokenAnnotator::splitPenalty(const AnnotatedLine &Line, const FormatToken &Tok, bool InFunctionDecl) { const FormatToken &Left = *Tok.Previous; const FormatToken &Right = Tok; if (Left.is(tok::semi)) return 0; if (Left.is(tok::comma)) return 1; if (Right.is(tok::l_square)) return 150; if (Right.Type == TT_StartOfName || Right.is(tok::kw_operator)) { if (Line.First->is(tok::kw_for) && Right.PartOfMultiVariableDeclStmt) return 3; if (Left.Type == TT_StartOfName) return 20; if (InFunctionDecl && Right.BindingStrength == 1) // FIXME: Clean up hack of using BindingStrength to find top-level names. return Style.PenaltyReturnTypeOnItsOwnLine; return 200; } if (Left.is(tok::equal) && Right.is(tok::l_brace)) return 150; if (Left.Type == TT_CastRParen) return 100; if (Left.is(tok::coloncolon)) return 500; if (Left.isOneOf(tok::kw_class, tok::kw_struct)) return 5000; if (Left.Type == TT_RangeBasedForLoopColon || Left.Type == TT_InheritanceColon) return 2; if (Right.isMemberAccess()) { if (Left.isOneOf(tok::r_paren, tok::r_square) && Left.MatchingParen && Left.MatchingParen->ParameterCount > 0) return 20; // Should be smaller than breaking at a nested comma. return 150; } // Breaking before a trailing 'const' or not-function-like annotation is bad. if (Left.is(tok::r_paren) && Line.Type != LT_ObjCProperty && (Right.is(tok::kw_const) || (Right.is(tok::identifier) && Right.Next && Right.Next->isNot(tok::l_paren)))) return 100; // In for-loops, prefer breaking at ',' and ';'. if (Line.First->is(tok::kw_for) && Left.is(tok::equal)) return 4; // In Objective-C method expressions, prefer breaking before "param:" over // breaking after it. if (Right.Type == TT_ObjCSelectorName) return 0; if (Left.is(tok::colon) && Left.Type == TT_ObjCMethodExpr) return 50; if (Left.is(tok::l_paren) && InFunctionDecl) return 100; if (Left.opensScope()) return Left.ParameterCount > 1 ? Style.PenaltyBreakBeforeFirstCallParameter : 19; if (Right.is(tok::lessless)) { if (Left.is(tok::string_literal)) { StringRef Content = Left.TokenText; if (Content.startswith("\"")) Content = Content.drop_front(1); if (Content.endswith("\"")) Content = Content.drop_back(1); Content = Content.trim(); if (Content.size() > 1 && (Content.back() == ':' || Content.back() == '=')) return 25; } return 1; // Breaking at a << is really cheap. } if (Left.Type == TT_ConditionalExpr) return prec::Conditional; prec::Level Level = Left.getPrecedence(); if (Level != prec::Unknown) return Level; return 3; } bool TokenAnnotator::spaceRequiredBetween(const AnnotatedLine &Line, const FormatToken &Left, const FormatToken &Right) { if (Right.is(tok::hashhash)) return Left.is(tok::hash); if (Left.isOneOf(tok::hashhash, tok::hash)) return Right.is(tok::hash); if (Left.is(tok::l_paren) && Right.is(tok::r_paren)) return Style.SpaceInEmptyParentheses; if (Left.is(tok::l_paren) || Right.is(tok::r_paren)) return (Right.Type == TT_CastRParen || (Left.MatchingParen && Left.MatchingParen->Type == TT_CastRParen)) ? Style.SpacesInCStyleCastParentheses : Style.SpacesInParentheses; if (Style.SpacesInAngles && ((Left.Type == TT_TemplateOpener) != (Right.Type == TT_TemplateCloser))) return true; if (Right.isOneOf(tok::semi, tok::comma)) return false; if (Right.is(tok::less) && (Left.is(tok::kw_template) || (Line.Type == LT_ObjCDecl && Style.ObjCSpaceBeforeProtocolList))) return true; if (Left.is(tok::arrow) || Right.is(tok::arrow)) return false; if (Left.isOneOf(tok::exclaim, tok::tilde)) return false; if (Left.is(tok::at) && Right.isOneOf(tok::identifier, tok::string_literal, tok::char_constant, tok::numeric_constant, tok::l_paren, tok::l_brace, tok::kw_true, tok::kw_false)) return false; if (Left.is(tok::coloncolon)) return false; if (Right.is(tok::coloncolon)) return (Left.is(tok::less) && Style.Standard == FormatStyle::LS_Cpp03) || !Left.isOneOf(tok::identifier, tok::greater, tok::l_paren, tok::r_paren, tok::less); if (Left.is(tok::less) || Right.isOneOf(tok::greater, tok::less)) return false; if (Right.is(tok::ellipsis)) return Left.Tok.isLiteral(); if (Left.is(tok::l_square) && Right.is(tok::amp)) return false; if (Right.Type == TT_PointerOrReference) return Left.Tok.isLiteral() || ((Left.Type != TT_PointerOrReference) && Left.isNot(tok::l_paren) && !Style.PointerBindsToType); if (Right.Type == TT_FunctionTypeLParen && Left.isNot(tok::l_paren) && (Left.Type != TT_PointerOrReference || Style.PointerBindsToType)) return true; if (Left.Type == TT_PointerOrReference) return Right.Tok.isLiteral() || Right.Type == TT_BlockComment || ((Right.Type != TT_PointerOrReference) && Right.isNot(tok::l_paren) && Style.PointerBindsToType && Left.Previous && !Left.Previous->isOneOf(tok::l_paren, tok::coloncolon)); if (Right.is(tok::star) && Left.is(tok::l_paren)) return false; if (Left.is(tok::l_square)) return Left.Type == TT_ArrayInitializerLSquare && Right.isNot(tok::r_square); if (Right.is(tok::r_square)) return Right.MatchingParen && Right.MatchingParen->Type == TT_ArrayInitializerLSquare; if (Right.is(tok::l_square) && Right.Type != TT_ObjCMethodExpr && Right.Type != TT_LambdaLSquare && Left.isNot(tok::numeric_constant)) return false; if (Left.is(tok::colon)) return Left.Type != TT_ObjCMethodExpr; if (Right.is(tok::colon)) return Right.Type != TT_ObjCMethodExpr && !Left.is(tok::question); if (Right.is(tok::l_paren)) { if (Left.is(tok::r_paren) && Left.MatchingParen && Left.MatchingParen->Previous && Left.MatchingParen->Previous->is(tok::kw___attribute)) return true; return Line.Type == LT_ObjCDecl || Left.isOneOf(tok::kw_return, tok::kw_new, tok::kw_delete, tok::semi) || (Style.SpaceAfterControlStatementKeyword && Left.isOneOf(tok::kw_if, tok::kw_for, tok::kw_while, tok::kw_switch, tok::kw_catch)); } if (Left.is(tok::at) && Right.Tok.getObjCKeywordID() != tok::objc_not_keyword) return false; if (Left.is(tok::l_brace) && Right.is(tok::r_brace)) return !Left.Children.empty(); // No spaces in "{}". if (Left.is(tok::l_brace) || Right.is(tok::r_brace)) return !Style.Cpp11BracedListStyle; if (Right.Type == TT_UnaryOperator) return !Left.isOneOf(tok::l_paren, tok::l_square, tok::at) && (Left.isNot(tok::colon) || Left.Type != TT_ObjCMethodExpr); if (Left.isOneOf(tok::identifier, tok::greater, tok::r_square) && Right.is(tok::l_brace) && Right.getNextNonComment() && Right.BlockKind != BK_Block) return false; if (Left.is(tok::period) || Right.is(tok::period)) return false; if (Left.Type == TT_BlockComment && Left.TokenText.endswith("=*/")) return false; if (Right.is(tok::hash) && Left.is(tok::identifier) && Left.TokenText == "L") return false; return true; } bool TokenAnnotator::spaceRequiredBefore(const AnnotatedLine &Line, const FormatToken &Tok) { if (Tok.Tok.getIdentifierInfo() && Tok.Previous->Tok.getIdentifierInfo()) return true; // Never ever merge two identifiers. if (Tok.Previous->Type == TT_ImplicitStringLiteral) return Tok.WhitespaceRange.getBegin() != Tok.WhitespaceRange.getEnd(); if (Line.Type == LT_ObjCMethodDecl) { if (Tok.Previous->Type == TT_ObjCMethodSpecifier) return true; if (Tok.Previous->is(tok::r_paren) && Tok.is(tok::identifier)) // Don't space between ')' and return false; } if (Line.Type == LT_ObjCProperty && (Tok.is(tok::equal) || Tok.Previous->is(tok::equal))) return false; if (Tok.Type == TT_TrailingReturnArrow || Tok.Previous->Type == TT_TrailingReturnArrow) return true; if (Tok.Previous->is(tok::comma)) return true; if (Tok.is(tok::comma)) return false; if (Tok.Type == TT_CtorInitializerColon || Tok.Type == TT_ObjCBlockLParen) return true; if (Tok.Previous->Tok.is(tok::kw_operator)) return Tok.is(tok::coloncolon); if (Tok.Type == TT_OverloadedOperatorLParen) return false; if (Tok.is(tok::colon)) return !Line.First->isOneOf(tok::kw_case, tok::kw_default) && Tok.getNextNonComment() != NULL && Tok.Type != TT_ObjCMethodExpr && !Tok.Previous->is(tok::question); if (Tok.Previous->Type == TT_UnaryOperator || Tok.Previous->Type == TT_CastRParen) return false; if (Tok.Previous->is(tok::greater) && Tok.is(tok::greater)) { return Tok.Type == TT_TemplateCloser && Tok.Previous->Type == TT_TemplateCloser && (Style.Standard != FormatStyle::LS_Cpp11 || Style.SpacesInAngles); } if (Tok.isOneOf(tok::arrowstar, tok::periodstar) || Tok.Previous->isOneOf(tok::arrowstar, tok::periodstar)) return false; if (!Style.SpaceBeforeAssignmentOperators && Tok.getPrecedence() == prec::Assignment) return false; if ((Tok.Type == TT_BinaryOperator && !Tok.Previous->is(tok::l_paren)) || Tok.Previous->Type == TT_BinaryOperator) return true; if (Tok.Previous->Type == TT_TemplateCloser && Tok.is(tok::l_paren)) return false; if (Tok.is(tok::less) && Tok.Previous->isNot(tok::l_paren) && Line.First->is(tok::hash)) return true; if (Tok.Type == TT_TrailingUnaryOperator) return false; return spaceRequiredBetween(Line, *Tok.Previous, Tok); } bool TokenAnnotator::mustBreakBefore(const AnnotatedLine &Line, const FormatToken &Right) { if (Right.is(tok::comment)) { return Right.NewlinesBefore > 0; } else if (Right.Previous->isTrailingComment() || (Right.is(tok::string_literal) && Right.Previous->is(tok::string_literal))) { return true; } else if (Right.Previous->IsUnterminatedLiteral) { return true; } else if (Right.is(tok::lessless) && Right.Next && Right.Previous->is(tok::string_literal) && Right.Next->is(tok::string_literal)) { return true; } else if (Right.Previous->ClosesTemplateDeclaration && Right.Previous->MatchingParen && Right.Previous->MatchingParen->BindingStrength == 1 && Style.AlwaysBreakTemplateDeclarations) { // FIXME: Fix horrible hack of using BindingStrength to find top-level <>. return true; } else if (Right.Type == TT_CtorInitializerComma && Style.BreakConstructorInitializersBeforeComma && !Style.ConstructorInitializerAllOnOneLineOrOnePerLine) { return true; } else if (Right.Previous->BlockKind == BK_Block && Right.Previous->isNot(tok::r_brace) && Right.isNot(tok::r_brace)) { return true; } else if (Right.is(tok::l_brace) && (Right.BlockKind == BK_Block)) { return Style.BreakBeforeBraces == FormatStyle::BS_Allman; } return false; } bool TokenAnnotator::canBreakBefore(const AnnotatedLine &Line, const FormatToken &Right) { const FormatToken &Left = *Right.Previous; if (Right.Type == TT_StartOfName || Right.is(tok::kw_operator)) return true; if (Right.isTrailingComment()) // We rely on MustBreakBefore being set correctly here as we should not // change the "binding" behavior of a comment. return false; if (Left.is(tok::question) && Right.is(tok::colon)) return false; if (Right.Type == TT_ConditionalExpr || Right.is(tok::question)) return Style.BreakBeforeTernaryOperators; if (Left.Type == TT_ConditionalExpr || Left.is(tok::question)) return !Style.BreakBeforeTernaryOperators; if (Right.is(tok::colon) && (Right.Type == TT_DictLiteral || Right.Type == TT_ObjCMethodExpr)) return false; if (Left.is(tok::colon) && (Left.Type == TT_DictLiteral || Left.Type == TT_ObjCMethodExpr)) return true; if (Right.Type == TT_ObjCSelectorName) return true; if (Left.is(tok::r_paren) && Line.Type == LT_ObjCProperty) return true; if (Left.ClosesTemplateDeclaration) return true; if (Right.Type == TT_RangeBasedForLoopColon || Right.Type == TT_OverloadedOperatorLParen || Right.Type == TT_OverloadedOperator) return false; if (Left.Type == TT_RangeBasedForLoopColon) return true; if (Right.Type == TT_RangeBasedForLoopColon) return false; if (Left.Type == TT_PointerOrReference || Left.Type == TT_TemplateCloser || Left.Type == TT_UnaryOperator || Left.is(tok::kw_operator)) return false; if (Left.is(tok::equal) && Line.Type == LT_VirtualFunctionDecl) return false; if (Left.Previous) { if (Left.is(tok::l_paren) && Right.is(tok::l_paren) && Left.Previous->is(tok::kw___attribute)) return false; if (Left.is(tok::l_paren) && (Left.Previous->Type == TT_BinaryOperator || Left.Previous->Type == TT_CastRParen)) return false; } if (Right.Type == TT_ImplicitStringLiteral) return false; if (Right.is(tok::r_paren) || Right.Type == TT_TemplateCloser) return false; // We only break before r_brace if there was a corresponding break before // the l_brace, which is tracked by BreakBeforeClosingBrace. if (Right.is(tok::r_brace)) return Right.MatchingParen && Right.MatchingParen->BlockKind == BK_Block; // Allow breaking after a trailing 'const', e.g. after a method declaration, // unless it is follow by ';', '{' or '='. if (Left.is(tok::kw_const) && Left.Previous != NULL && Left.Previous->is(tok::r_paren)) return !Right.isOneOf(tok::l_brace, tok::semi, tok::equal); if (Right.is(tok::kw___attribute)) return true; if (Left.is(tok::identifier) && Right.is(tok::string_literal)) return true; if (Left.Type == TT_CtorInitializerComma && Style.BreakConstructorInitializersBeforeComma) return false; if (Right.Type == TT_CtorInitializerComma && Style.BreakConstructorInitializersBeforeComma) return true; if (Right.isBinaryOperator() && Style.BreakBeforeBinaryOperators) return true; if (Left.is(tok::greater) && Right.is(tok::greater) && Left.Type != TT_TemplateCloser) return false; if (Left.Type == TT_ArrayInitializerLSquare) return true; return (Left.isBinaryOperator() && Left.isNot(tok::lessless) && !Style.BreakBeforeBinaryOperators) || Left.isOneOf(tok::comma, tok::coloncolon, tok::semi, tok::l_brace, tok::kw_class, tok::kw_struct) || Right.isOneOf(tok::lessless, tok::arrow, tok::period, tok::colon, tok::l_square, tok::at) || (Left.is(tok::r_paren) && Right.isOneOf(tok::identifier, tok::kw_const, tok::kw___attribute)) || (Left.is(tok::l_paren) && !Right.is(tok::r_paren)); } void TokenAnnotator::printDebugInfo(const AnnotatedLine &Line) { llvm::errs() << "AnnotatedTokens:\n"; const FormatToken *Tok = Line.First; while (Tok) { llvm::errs() << " M=" << Tok->MustBreakBefore << " C=" << Tok->CanBreakBefore << " T=" << Tok->Type << " S=" << Tok->SpacesRequiredBefore << " P=" << Tok->SplitPenalty << " Name=" << Tok->Tok.getName() << " L=" << Tok->TotalLength << " PPK=" << Tok->PackingKind << " FakeLParens="; for (unsigned i = 0, e = Tok->FakeLParens.size(); i != e; ++i) llvm::errs() << Tok->FakeLParens[i] << "/"; llvm::errs() << " FakeRParens=" << Tok->FakeRParens << "\n"; if (Tok->Next == NULL) assert(Tok == Line.Last); Tok = Tok->Next; } llvm::errs() << "----\n"; } } // namespace format } // namespace clang @ 1.1.1.1 log @Import Clang 3.4rc1 r195771. @ text @@ 1.1.1.2 log @Import clang 3.5svn r198450. @ text @d87 1 a87 1 // (^ can start a block type. a105 4 } else if (Left->Previous && Left->Previous->is(tok::caret) && Left->Previous->Type == TT_UnaryOperator) { // This is the parameter list of an ObjC block. Contexts.back().IsExpression = false; d229 1 a229 1 if (Contexts.back().FirstObjCSelectorName != NULL) { a231 3 if (Contexts.back().NumBlockParameters > 1) Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = 0; } d370 1 a370 1 !Contexts.back().IsExpression && Line.First->Type != TT_ObjCProperty) a531 1 CurrentToken->NestingLevel = Contexts.size() - 1; a540 1 CurrentToken->Type != TT_FunctionLBrace && d556 5 a560 5 LongestObjCSelectorName(0), NumBlockParameters(0), ColonIsForRangeExpr(false), ColonIsDictLiteral(false), ColonIsObjCMethodExpr(false), FirstObjCSelectorName(NULL), FirstStartOfName(NULL), IsExpression(IsExpression), CanBeExpression(true), InCtorInitializer(false) {} a564 1 unsigned NumBlockParameters; d606 5 a610 1 } else if (Current.isOneOf(tok::kw_return, tok::kw_throw)) { a611 9 } else if (Current.is(tok::l_paren) && !Line.MustBeDeclaration && !Line.InPPDirective) { bool ParametersOfFunctionType = Current.Previous && Current.Previous->is(tok::r_paren) && Current.Previous->MatchingParen && Current.Previous->MatchingParen->Type == TT_FunctionTypeLParen; bool IsForOrCatch = Current.Previous && Current.Previous->isOneOf(tok::kw_for, tok::kw_catch); Contexts.back().IsExpression = !ParametersOfFunctionType && !IsForOrCatch; a645 2 if (Current.Type == TT_UnaryOperator) ++Contexts.back().NumBlockParameters; a710 5 } else if (Current.isOneOf(tok::identifier, tok::kw_const) && Line.MightBeFunctionDecl && Contexts.size() == 1) { // Line.MightBeFunctionDecl can only be true after the parentheses of a // function declaration have been found. Current.Type = TT_TrailingAnnotation; d907 1 a907 3 Precedence == CurrentPrecedence) { if (LatestOperator) addFakeParenthesis(Start, prec::Level(Precedence)); a908 1 } d1063 4 a1066 7 if (Current->Type == TT_LineComment) { if (Current->Previous->BlockKind == BK_BracedInit) Current->SpacesRequiredBefore = Style.Cpp11BracedListStyle ? 0 : 1; else Current->SpacesRequiredBefore = Style.SpacesBeforeTrailingComments; } else if (Current->SpacesRequiredBefore == 0 && spaceRequiredBefore(Line, *Current)) { a1067 1 } d1135 2 a1136 2 if (Right.is(tok::l_square) && Right.Type != TT_ObjCMethodExpr) return 250; d1143 2 a1144 1 if (InFunctionDecl && Right.NestingLevel == 0) d1168 5 a1172 7 if (Right.Type == TT_TrailingAnnotation && Right.Next && Right.Next->isNot(tok::l_paren)) { // Breaking before a trailing annotation is bad unless it is function-like. // Use a slightly higher penalty after ")" so that annotations like // "const override" are kept together. return Left.is(tok::r_paren) ? 100 : 120; } d1183 1 a1183 1 return Line.MightBeFunctionDecl ? 50 : 500; a1186 2 if (Left.is(tok::equal) && InFunctionDecl) return 110; d1295 1 a1295 1 (Style.SpaceBeforeParens != FormatStyle::SBPO_Never && d1297 1 a1297 4 tok::kw_catch)) || (Style.SpaceBeforeParens == FormatStyle::SBPO_Always && Left.isOneOf(tok::identifier, tok::kw___attribute) && Line.Type != LT_PreprocessorDirective); a1304 2 if (Left.Type == TT_BlockComment && Left.TokenText.endswith("=*/")) return false; d1314 2 d1385 1 a1385 2 return Right.Previous->BlockKind != BK_BracedInit && Right.NewlinesBefore > 0; d1387 2 a1388 1 (Right.isStringLiteral() && Right.Previous->isStringLiteral())) { d1398 1 a1398 1 Right.Previous->MatchingParen->NestingLevel == 0 && d1400 1 d1402 1 a1402 2 } else if ((Right.Type == TT_CtorInitializerComma || Right.Type == TT_CtorInitializerColon) && d1410 1 a1410 8 return Style.BreakBeforeBraces == FormatStyle::BS_Allman || Style.BreakBeforeBraces == FormatStyle::BS_GNU; } else if (Right.is(tok::string_literal) && Right.TokenText.startswith("R\"")) { // Raw string literals are special wrt. line breaks. The author has made a // deliberate choice and might have aligned the contents of the string // literal accordingly. Thus, we try keep existing line breaks. return Right.NewlinesBefore > 0; a1417 2 if (Left.is(tok::at)) return false; d1423 1 a1423 4 // The first comment in a braced lists is always interpreted as belonging to // the first list element. Otherwise, it should be placed outside of the // list. return Left.BlockKind == BK_BracedInit; d1492 1 a1492 1 if (Right.Type == TT_BinaryOperator && Style.BreakBeforeBinaryOperators) @ 1.1.1.3 log @Import Clang 3.5svn r199312 @ text @a476 12 void parsePragma() { next(); // Consume "pragma". if (CurrentToken && CurrentToken->TokenText == "mark") { next(); // Consume "mark". next(); // Consume first token (so we fix leading whitespace). while (CurrentToken != NULL) { CurrentToken->Type = TT_ImplicitStringLiteral; next(); } } } a497 3 case tok::pp_pragma: parsePragma(); break; a704 1 LeftOfParens->isNot(tok::at) && d1190 1 a1190 1 if (Left.is(tok::r_paren) && Left.MatchingParen && d1281 1 a1281 1 if (Right.is(tok::coloncolon) && Left.isNot(tok::l_brace)) d1338 1 a1338 3 if ((Left.is(tok::l_brace) && Left.BlockKind != BK_Block) || (Right.is(tok::r_brace) && Right.MatchingParen && Right.MatchingParen->BlockKind != BK_Block)) a1420 1 Right.Previous->Type != TT_CtorInitializerColon && d1441 3 @ 1.1.1.4 log @Import Clang 3.5svn r201163. @ text @a77 3 bool AfterCaret = Contexts.back().CaretFound; Contexts.back().CaretFound = false; d106 2 a107 1 } else if (AfterCaret) { a109 2 } else if (Left->Previous && Left->Previous->is(tok::kw___attribute)) { Left->Type = TT_AttributeParen; a159 3 if (Left->Type == TT_AttributeParen) CurrentToken->Type = TT_AttributeParen; a171 2 else if (CurrentToken->is(tok::l_brace)) Left->Type = TT_Unknown; // Not TT_ObjCBlockLParen a246 1 Style.Language != FormatStyle::LK_Proto && d273 1 a273 2 if (CurrentToken->is(tok::colon) && Style.Language != FormatStyle::LK_Proto) a514 1 Contexts.back().IsExpression = true; a529 9 // Directly allow to 'import ' to support protocol buffer // definitions (code.google.com/p/protobuf) or missing "#" (either way we // should not break the line). IdentifierInfo *Info = CurrentToken->Tok.getIdentifierInfo(); if (Info && Info->getPPKeywordID() == tok::pp_import && CurrentToken->Next && CurrentToken->Next->is(tok::string_literal)) parseIncludeDirective(); d584 1 a584 1 CanBeExpression(true), InCtorInitializer(false), CaretFound(false) {} a597 1 bool CaretFound; d676 1 a676 1 if (Current.Type == TT_UnaryOperator) { a677 3 if (Current.is(tok::caret)) Contexts.back().CaretFound = true; } d700 1 a700 1 Current.Previous->isSimpleTypeSpecifier(); d781 1 a781 1 PreviousNotConst->isSimpleTypeSpecifier(); d856 30 a993 2 else if (Current->Type == TT_RangeBasedForLoopColon) return prec::Comma; d1180 3 a1182 6 if (Right.is(tok::l_square)) { if (Style.Language == FormatStyle::LK_Proto) return 1; if (Right.Type != TT_ObjCMethodExpr) return 250; } d1196 1 a1196 2 if (Left.is(tok::coloncolon) || (Right.is(tok::period) && Style.Language == FormatStyle::LK_Proto)) a1265 8 if (Style.Language == FormatStyle::LK_Proto) { if (Right.is(tok::l_paren) && (Left.TokenText == "returns" || Left.TokenText == "option")) return true; } if (Style.ObjCSpaceAfterProperty && Line.Type == LT_ObjCProperty && Left.Tok.getObjCKeywordID() == tok::objc_property) return true; d1324 1 a1324 1 Style.SpacesInContainerLiterals && Right.isNot(tok::r_square); d1326 1 a1326 1 return Right.MatchingParen && Style.SpacesInContainerLiterals && d1333 2 d1336 3 a1338 1 if (Left.is(tok::r_paren) && Left.Type == TT_AttributeParen) d1407 1 a1407 2 !Tok.Previous->is(tok::question) && (Tok.Type != TT_DictLiteral || Style.SpacesInContainerLiterals); d1410 1 a1410 1 return Tok.Type == TT_BinaryOperator; a1468 4 } else if (Right.Previous->is(tok::l_brace) && Right.NestingLevel == 1 && Style.Language == FormatStyle::LK_Proto) { // Don't enums onto single lines in protocol buffers. return true; d1518 8 a1525 6 if (Left.is(tok::l_paren) && Left.Type == TT_AttributeParen) return false; if (Left.is(tok::l_paren) && Left.Previous && (Left.Previous->Type == TT_BinaryOperator || Left.Previous->Type == TT_CastRParen)) return false; d1569 1 a1569 1 Right.isOneOf(tok::identifier, tok::kw_const)) || @ 1.1.1.5 log @Import Clang 3.5svn r202566. @ text @d1215 1 a1215 3 // Generally, breaking before a trailing annotation is bad unless it is // function-like. It seems to be especially preferable to keep standard // annotations (i.e. "const", "final" and "override") on the same line. d1218 1 a1218 5 bool is_standard_annotation = Right.is(tok::kw_const) || Right.TokenText == "override" || Right.TokenText == "final"; return (Left.is(tok::r_paren) ? 100 : 120) + (is_standard_annotation ? 50 : 0); a1505 2 if (Right.Type == TT_InheritanceColon) return true; @ 1.1.1.5.2.1 log @Rebase. @ text @a19 2 #define DEBUG_TYPE "format-token-annotator" a36 1 resetTokenMetadata(CurrentToken); d41 1 a41 1 if (!CurrentToken) d46 1 a46 6 // If there's a template keyword before the opening angle bracket, this is a // template parameter, not an argument. Contexts.back().InTemplateArgument = Left->Previous && Left->Previous->Tok.isNot(tok::kw_template); while (CurrentToken) { d64 1 a64 5 ((CurrentToken->Previous->Type == TT_BinaryOperator && // Toplevel bool expressions do not make lots of sense; // If we're on the top level, it contains only the base context and // the context for the current opening angle bracket. Contexts.size() > 2) || d76 1 a76 1 if (!CurrentToken) d78 3 d100 2 a101 4 if (Left->Previous && (Left->Previous->isOneOf(tok::kw_static_assert, tok::kw_if, tok::kw_while, tok::l_paren, tok::comma) || Left->Previous->Type == TT_BinaryOperator)) { a103 5 } else if (Line.InPPDirective && (!Left->Previous || (Left->Previous->isNot(tok::identifier) && Left->Previous->Type != TT_OverloadedOperator))) { Contexts.back().IsExpression = true; d109 1 a109 1 } else if (Contexts[Contexts.size() - 2].CaretFound) { a113 4 } else if (Left->Previous && Left->Previous->IsForEachMacro) { // The first argument to a foreach macro is a declaration. Contexts.back().IsForEachMacro = true; Contexts.back().IsExpression = false; d124 1 a124 1 while (CurrentToken) { d158 1 a158 1 if (Contexts.back().FirstObjCSelectorName) { a185 3 if (CurrentToken->isOneOf(tok::kw_const, tok::kw_auto) || CurrentToken->isSimpleTypeSpecifier()) Contexts.back().IsExpression = false; a204 1 CurrentToken->isNot(tok::l_brace) && d223 1 a223 1 while (CurrentToken) { d232 1 a232 1 if (StartsObjCMethodExpr && CurrentToken->Previous != Left) { d237 1 a237 1 if (Parent && Parent->Type == TT_PointerOrReference) d242 1 a242 1 if (Contexts.back().FirstObjCSelectorName) { d268 1 a268 1 if (CurrentToken) { a269 5 if (Contexts.back().CaretFound) Left->Type = TT_ObjCBlockLBrace; Contexts.back().CaretFound = false; a271 2 if (Left->BlockKind == BK_BracedInit) Contexts.back().IsExpression = true; d273 1 a273 1 while (CurrentToken) { d307 1 a307 1 while (CurrentToken) { d320 1 a320 1 if (CurrentToken && CurrentToken->is(tok::less)) { d325 1 a325 1 if (CurrentToken) d338 1 a338 1 if (!Tok->Previous && Line.MustBeDeclaration) d342 1 a342 1 if (!Tok->Previous) d345 1 a345 2 if (Tok->Previous->is(tok::r_paren) && Contexts.size() == 1 && Line.First->isNot(tok::kw_case)) { d357 1 a357 1 if (!Contexts.back().FirstObjCSelectorName) d361 2 a362 1 } else if (CurrentToken && CurrentToken->is(tok::numeric_constant)) { d364 1 a364 2 } else if (Contexts.size() == 1 && !Line.First->isOneOf(tok::kw_enum, tok::kw_case)) { d372 1 a372 1 if (CurrentToken && CurrentToken->is(tok::l_paren)) { d388 1 a388 3 !Contexts.back().IsExpression && Line.First->Type != TT_ObjCProperty && (!Tok->Previous || Tok->Previous->isNot(tok::kw_decltype))) d413 1 a413 1 if (Tok->Previous) a449 2 if (Contexts.back().IsForEachMacro) Contexts.back().IsExpression = true; d459 1 a459 1 if (CurrentToken && CurrentToken->is(tok::less)) { d461 1 a461 1 while (CurrentToken) { d467 1 a467 1 while (CurrentToken) { d482 1 a482 1 while (CurrentToken) { d493 1 a493 1 while (CurrentToken) { d502 1 a502 1 if (!CurrentToken) d510 1 a510 1 if (!CurrentToken->Tok.getIdentifierInfo()) d532 1 a532 1 while (CurrentToken) d551 1 a551 1 while (CurrentToken) { d561 1 a561 1 if (Contexts.back().FirstObjCSelectorName) a570 18 void resetTokenMetadata(FormatToken *Token) { if (!Token) return; // Reset token type in case we have already looked at it and then // recovered from an error (e.g. failure to find the matching >). if (CurrentToken->Type != TT_LambdaLSquare && CurrentToken->Type != TT_FunctionLBrace && CurrentToken->Type != TT_ImplicitStringLiteral && CurrentToken->Type != TT_RegexLiteral && CurrentToken->Type != TT_TrailingReturnArrow) CurrentToken->Type = TT_Unknown; if (CurrentToken->Role) CurrentToken->Role.reset(nullptr); CurrentToken->FakeLParens.clear(); CurrentToken->FakeRParens = 0; } d572 1 a572 1 if (CurrentToken) { d576 3 d580 12 a592 2 resetTokenMetadata(CurrentToken); d603 3 a605 4 ColonIsObjCMethodExpr(false), FirstObjCSelectorName(nullptr), FirstStartOfName(nullptr), IsExpression(IsExpression), CanBeExpression(true), InTemplateArgument(false), InCtorInitializer(false), CaretFound(false), IsForEachMacro(false) {} a617 1 bool InTemplateArgument; a619 1 bool IsForEachMacro; d646 1 a646 1 if (Previous->isOneOf(tok::r_square, tok::r_paren)) d656 1 a656 3 !Line.InPPDirective && (!Current.Previous || Current.Previous->isNot(tok::kw_decltype))) { d695 1 a695 2 Contexts.back().IsExpression, Contexts.back().InTemplateArgument); d698 1 a698 1 if (Current.Type == TT_UnaryOperator && Current.is(tok::caret)) { d700 2 a701 1 Contexts.back().CaretFound = true; a706 2 } else if (Current.is(tok::question)) { Current.Type = TT_ConditionalExpr; d717 33 a749 1 if (rParenEndsCast(Current)) a769 1 Current.Previous && Current.Previous->isNot(tok::equal) && d784 1 a784 1 if (Tok.isNot(tok::identifier) || !Tok.Previous) d789 1 a789 1 while (PreviousNotConst && PreviousNotConst->is(tok::kw_const)) d792 1 a792 1 if (!PreviousNotConst) a803 5 if (PreviousNotConst->is(tok::r_paren) && PreviousNotConst->MatchingParen && PreviousNotConst->MatchingParen->Previous && PreviousNotConst->MatchingParen->Previous->is(tok::kw_decltype)) return true; a808 56 /// \brief Determine whether ')' is ending a cast. bool rParenEndsCast(const FormatToken &Tok) { FormatToken *LeftOfParens = NULL; if (Tok.MatchingParen) LeftOfParens = Tok.MatchingParen->getPreviousNonComment(); bool IsCast = false; bool ParensAreEmpty = Tok.Previous == Tok.MatchingParen; bool ParensAreType = !Tok.Previous || Tok.Previous->Type == TT_PointerOrReference || Tok.Previous->Type == TT_TemplateCloser || Tok.Previous->isSimpleTypeSpecifier(); bool ParensCouldEndDecl = Tok.Next && Tok.Next->isOneOf(tok::equal, tok::semi, tok::l_brace); bool IsSizeOfOrAlignOf = LeftOfParens && LeftOfParens->isOneOf(tok::kw_sizeof, tok::kw_alignof); if (ParensAreType && !ParensCouldEndDecl && !IsSizeOfOrAlignOf && ((Contexts.size() > 1 && Contexts[Contexts.size() - 2].IsExpression) || (Tok.Next && Tok.Next->isBinaryOperator()))) IsCast = true; else if (Tok.Next && Tok.Next->isNot(tok::string_literal) && (Tok.Next->Tok.isLiteral() || Tok.Next->isOneOf(tok::kw_sizeof, tok::kw_alignof))) IsCast = true; // If there is an identifier after the (), it is likely a cast, unless // there is also an identifier before the (). else if (LeftOfParens && (LeftOfParens->Tok.getIdentifierInfo() == NULL || LeftOfParens->is(tok::kw_return)) && LeftOfParens->Type != TT_OverloadedOperator && LeftOfParens->isNot(tok::at) && LeftOfParens->Type != TT_TemplateCloser && Tok.Next) { if (Tok.Next->isOneOf(tok::identifier, tok::numeric_constant)) { IsCast = true; } else { // Use heuristics to recognize c style casting. FormatToken *Prev = Tok.Previous; if (Prev && Prev->isOneOf(tok::amp, tok::star)) Prev = Prev->Previous; if (Prev && Tok.Next && Tok.Next->Next) { bool NextIsUnary = Tok.Next->isUnaryOperator() || Tok.Next->isOneOf(tok::amp, tok::star); IsCast = NextIsUnary && Tok.Next->Next->isOneOf( tok::identifier, tok::numeric_constant); } for (; Prev != Tok.MatchingParen; Prev = Prev->Previous) { if (!Prev || !Prev->isOneOf(tok::kw_const, tok::identifier)) { IsCast = false; break; } } } } return IsCast && !ParensAreEmpty; } d810 1 a810 2 TokenType determineStarAmpUsage(const FormatToken &Tok, bool IsExpression, bool InTemplateArgument) { d812 1 a812 1 if (!PrevToken) d816 1 a816 1 if (!NextToken) a826 1 PrevToken->Type == TT_ConditionalExpr || d830 1 a830 1 if (NextToken->is(tok::l_square) && NextToken->Type != TT_LambdaLSquare) d839 2 a840 9 PrevToken->isOneOf(tok::r_paren, tok::r_square, tok::kw_true, tok::kw_false) || NextToken->Tok.isLiteral() || NextToken->isOneOf(tok::kw_true, tok::kw_false) || NextToken->isUnaryOperator() || // If we know we're in a template argument, there are no named // declarations. Thus, having an identifier on the right-hand side // indicates a binary operator. (InTemplateArgument && NextToken->Tok.isAnyIdentifier())) d853 1 a853 1 if (!PrevToken || PrevToken->Type == TT_CastRParen) d873 1 a873 1 if (!PrevToken || PrevToken->Type == TT_CastRParen) d881 1 d914 1 a914 1 if (!Current || Precedence > PrecedenceArrowAndPeriod) d931 1 a931 2 FormatToken *LatestOperator = nullptr; unsigned OperatorIndex = 0; d948 1 a948 1 if (!Current || Current->closesScope() || a950 1 LatestOperator->LastOperator = true; d952 1 d971 1 a971 1 if (CurrentPrecedence == Precedence) { a972 3 Current->OperatorIndex = OperatorIndex; ++OperatorIndex; } d1013 1 a1013 1 if (!Current || Current->Type != TT_UnaryOperator) { d1054 1 a1054 1 const AnnotatedLine *NextNonCommentLine = nullptr; d1059 1 a1059 1 (*I)->First->Next == nullptr) d1062 1 a1062 1 NextNonCommentLine = (*I)->First->isNot(tok::r_brace) ? (*I) : nullptr; a1093 6 for (SmallVectorImpl::iterator I = Line.Children.begin(), E = Line.Children.end(); I != E; ++I) { calculateFormattingInformation(**I); } d1100 1 a1100 1 while (Current) { d1102 1 a1102 2 if (Current->Previous->BlockKind == BK_BracedInit && Current->Previous->opensScope()) a1105 21 // If we find a trailing comment, iterate backwards to determine whether // it seems to relate to a specific parameter. If so, break before that // parameter to avoid changing the comment's meaning. E.g. don't move 'b' // to the previous line in: // SomeFunction(a, // b, // comment // c); if (!Current->HasUnescapedNewline) { for (FormatToken *Parameter = Current->Previous; Parameter; Parameter = Parameter->Previous) { if (Parameter->isOneOf(tok::comment, tok::r_brace)) break; if (Parameter->Previous && Parameter->Previous->is(tok::comma)) { if (Parameter->Previous->Type != TT_CtorInitializerComma && Parameter->HasUnescapedNewline) Parameter->MustBreakBefore = true; break; } } } d1107 1 a1107 1 spaceRequiredBefore(Line, *Current)) { d1116 1 a1116 7 unsigned ChildSize = 0; if (Current->Previous->Children.size() == 1) { FormatToken &LastOfChild = *Current->Previous->Children[0]->Last; ChildSize = LastOfChild.isTrailingComment() ? Style.ColumnLimit : LastOfChild.TotalLength + 1; } if (Current->MustBreakBefore || Current->Previous->Children.size() > 1 || d1121 1 a1121 1 Current->ColumnWidth + ChildSize + d1137 1 a1137 1 for (Current = Line.First; Current != nullptr; Current = Current->Next) { d1143 6 d1154 1 a1154 1 while (Current) { d1175 1 a1175 2 if (Left.is(tok::comma) || (Right.is(tok::identifier) && Right.Next && Right.Next->Type == TT_DictLiteral)) d1220 5 a1224 2 bool is_short_annotation = Right.TokenText.size() < 10; return (Left.is(tok::r_paren) ? 100 : 120) + (is_short_annotation ? 50 : 0); a1276 3 } else if (Style.Language == FormatStyle::LK_JavaScript) { if (Left.TokenText == "var") return true; a1277 2 if (Left.is(tok::kw_return) && Right.isNot(tok::semi)) return true; d1344 1 a1344 2 Right.Type != TT_LambdaLSquare && Left.isNot(tok::numeric_constant) && Left.Type != TT_DictLiteral) a1347 2 if (Left.Type == TT_BlockComment) return !Left.TokenText.endswith("=*/"); d1352 2 a1353 1 Left.isOneOf(tok::kw_new, tok::kw_delete, tok::semi) || d1355 2 a1356 3 (Left.isOneOf(tok::kw_if, tok::kw_for, tok::kw_while, tok::kw_switch, tok::kw_catch, tok::kw_case) || Left.IsForEachMacro)) || d1369 2 d1374 1 a1374 2 if ((Left.isOneOf(tok::identifier, tok::greater, tok::r_square) || Left.isSimpleTypeSpecifier()) && d1417 1 a1417 1 Tok.getNextNonComment() && Tok.Type != TT_ObjCMethodExpr && d1435 1 a1435 2 Tok.Previous->Type == TT_BinaryOperator || Tok.Previous->Type == TT_ConditionalExpr) a1443 2 if (Tok.Previous->Type == TT_RegexLiteral) return false; a1448 1 const FormatToken &Left = *Right.Previous; d1452 1 a1452 1 (Right.NewlinesBefore > 0 && Right.HasUnescapedNewline); d1472 1 a1472 2 } else if (Right.is(tok::l_brace) && Right.BlockKind == BK_Block && Right.Type != TT_ObjCBlockLBrace && Right.Type != TT_DictLiteral) { a1485 20 // If the last token before a '}' is a comma or a comment, the intention is to // insert a line break after it in order to make shuffling around entries // easier. const FormatToken *BeforeClosingBrace = nullptr; if (Left.is(tok::l_brace) && Left.MatchingParen) BeforeClosingBrace = Left.MatchingParen->Previous; else if (Right.is(tok::r_brace)) BeforeClosingBrace = Right.Previous; if (BeforeClosingBrace && BeforeClosingBrace->isOneOf(tok::comma, tok::comment)) return true; if (Style.Language == FormatStyle::LK_JavaScript) { // FIXME: This might apply to other languages and token kinds. if (Right.is(tok::char_constant) && Left.is(tok::plus) && Left.Previous && Left.Previous->is(tok::char_constant)) return true; } a1493 2 if (Left.Tok.getObjCKeywordID() == tok::objc_interface) return false; d1509 3 a1513 3 if (Right.is(tok::colon) && (Right.Type != TT_CtorInitializerColon && Right.Type != TT_InlineASMColon)) return false; d1540 1 a1540 1 Left.Previous->Type == TT_CastRParen || Left.Previous->is(tok::kw_if))) d1553 5 a1557 5 // Allow breaking after a trailing annotation, e.g. after a method // declaration. if (Left.Type == TT_TrailingAnnotation) return !Right.isOneOf(tok::l_brace, tok::semi, tok::equal, tok::l_paren, tok::less, tok::coloncolon); a1564 4 if (Right.is(tok::identifier) && Right.Next && Right.Next->Type == TT_DictLiteral) return true; d1571 2 a1575 2 if (Right.Type == TT_BinaryOperator && Style.BreakBeforeBinaryOperators) return true; d1602 1 a1602 1 if (!Tok->Next) @ 1.1.1.6 log @Import Clang 3.5svn r209886. @ text @a19 2 #define DEBUG_TYPE "format-token-annotator" a36 1 resetTokenMetadata(CurrentToken); d41 1 a41 1 if (!CurrentToken) d46 1 a46 6 // If there's a template keyword before the opening angle bracket, this is a // template parameter, not an argument. Contexts.back().InTemplateArgument = Left->Previous && Left->Previous->Tok.isNot(tok::kw_template); while (CurrentToken) { d64 1 a64 5 ((CurrentToken->Previous->Type == TT_BinaryOperator && // Toplevel bool expressions do not make lots of sense; // If we're on the top level, it contains only the base context and // the context for the current opening angle bracket. Contexts.size() > 2) || d76 1 a76 1 if (!CurrentToken) d78 3 d100 2 a101 4 if (Left->Previous && (Left->Previous->isOneOf(tok::kw_static_assert, tok::kw_if, tok::kw_while, tok::l_paren, tok::comma) || Left->Previous->Type == TT_BinaryOperator)) { a103 5 } else if (Line.InPPDirective && (!Left->Previous || (Left->Previous->isNot(tok::identifier) && Left->Previous->Type != TT_OverloadedOperator))) { Contexts.back().IsExpression = true; d109 1 a109 1 } else if (Contexts[Contexts.size() - 2].CaretFound) { a113 4 } else if (Left->Previous && Left->Previous->IsForEachMacro) { // The first argument to a foreach macro is a declaration. Contexts.back().IsForEachMacro = true; Contexts.back().IsExpression = false; d124 1 a124 1 while (CurrentToken) { d158 1 a158 1 if (Contexts.back().FirstObjCSelectorName) { a185 3 if (CurrentToken->isOneOf(tok::kw_const, tok::kw_auto) || CurrentToken->isSimpleTypeSpecifier()) Contexts.back().IsExpression = false; a204 1 CurrentToken->isNot(tok::l_brace) && d223 1 a223 1 while (CurrentToken) { d232 1 a232 1 if (StartsObjCMethodExpr && CurrentToken->Previous != Left) { d237 1 a237 1 if (Parent && Parent->Type == TT_PointerOrReference) d242 1 a242 1 if (Contexts.back().FirstObjCSelectorName) { d268 1 a268 1 if (CurrentToken) { a269 5 if (Contexts.back().CaretFound) Left->Type = TT_ObjCBlockLBrace; Contexts.back().CaretFound = false; a271 2 if (Left->BlockKind == BK_BracedInit) Contexts.back().IsExpression = true; d273 1 a273 1 while (CurrentToken) { d307 1 a307 1 while (CurrentToken) { d320 1 a320 1 if (CurrentToken && CurrentToken->is(tok::less)) { d325 1 a325 1 if (CurrentToken) d338 1 a338 1 if (!Tok->Previous && Line.MustBeDeclaration) d342 1 a342 1 if (!Tok->Previous) d345 1 a345 2 if (Tok->Previous->is(tok::r_paren) && Contexts.size() == 1 && Line.First->isNot(tok::kw_case)) { d357 1 a357 1 if (!Contexts.back().FirstObjCSelectorName) d361 2 a362 1 } else if (CurrentToken && CurrentToken->is(tok::numeric_constant)) { d364 1 a364 2 } else if (Contexts.size() == 1 && !Line.First->isOneOf(tok::kw_enum, tok::kw_case)) { d372 1 a372 1 if (CurrentToken && CurrentToken->is(tok::l_paren)) { d388 1 a388 3 !Contexts.back().IsExpression && Line.First->Type != TT_ObjCProperty && (!Tok->Previous || Tok->Previous->isNot(tok::kw_decltype))) d413 1 a413 1 if (Tok->Previous) a449 2 if (Contexts.back().IsForEachMacro) Contexts.back().IsExpression = true; d459 1 a459 1 if (CurrentToken && CurrentToken->is(tok::less)) { d461 1 a461 1 while (CurrentToken) { d467 1 a467 1 while (CurrentToken) { d482 1 a482 1 while (CurrentToken) { d493 1 a493 1 while (CurrentToken) { d502 1 a502 1 if (!CurrentToken) d510 1 a510 1 if (!CurrentToken->Tok.getIdentifierInfo()) d532 1 a532 1 while (CurrentToken) d551 1 a551 1 while (CurrentToken) { d561 1 a561 1 if (Contexts.back().FirstObjCSelectorName) a570 18 void resetTokenMetadata(FormatToken *Token) { if (!Token) return; // Reset token type in case we have already looked at it and then // recovered from an error (e.g. failure to find the matching >). if (CurrentToken->Type != TT_LambdaLSquare && CurrentToken->Type != TT_FunctionLBrace && CurrentToken->Type != TT_ImplicitStringLiteral && CurrentToken->Type != TT_RegexLiteral && CurrentToken->Type != TT_TrailingReturnArrow) CurrentToken->Type = TT_Unknown; if (CurrentToken->Role) CurrentToken->Role.reset(nullptr); CurrentToken->FakeLParens.clear(); CurrentToken->FakeRParens = 0; } d572 1 a572 1 if (CurrentToken) { d576 3 d580 12 a592 2 resetTokenMetadata(CurrentToken); d603 3 a605 4 ColonIsObjCMethodExpr(false), FirstObjCSelectorName(nullptr), FirstStartOfName(nullptr), IsExpression(IsExpression), CanBeExpression(true), InTemplateArgument(false), InCtorInitializer(false), CaretFound(false), IsForEachMacro(false) {} a617 1 bool InTemplateArgument; a619 1 bool IsForEachMacro; d646 1 a646 1 if (Previous->isOneOf(tok::r_square, tok::r_paren)) d656 1 a656 3 !Line.InPPDirective && (!Current.Previous || Current.Previous->isNot(tok::kw_decltype))) { d695 1 a695 2 Contexts.back().IsExpression, Contexts.back().InTemplateArgument); d698 1 a698 1 if (Current.Type == TT_UnaryOperator && Current.is(tok::caret)) { d700 2 a701 1 Contexts.back().CaretFound = true; a706 2 } else if (Current.is(tok::question)) { Current.Type = TT_ConditionalExpr; d717 33 a749 1 if (rParenEndsCast(Current)) a769 1 Current.Previous && Current.Previous->isNot(tok::equal) && d784 1 a784 1 if (Tok.isNot(tok::identifier) || !Tok.Previous) d789 1 a789 1 while (PreviousNotConst && PreviousNotConst->is(tok::kw_const)) d792 1 a792 1 if (!PreviousNotConst) a803 5 if (PreviousNotConst->is(tok::r_paren) && PreviousNotConst->MatchingParen && PreviousNotConst->MatchingParen->Previous && PreviousNotConst->MatchingParen->Previous->is(tok::kw_decltype)) return true; a808 56 /// \brief Determine whether ')' is ending a cast. bool rParenEndsCast(const FormatToken &Tok) { FormatToken *LeftOfParens = NULL; if (Tok.MatchingParen) LeftOfParens = Tok.MatchingParen->getPreviousNonComment(); bool IsCast = false; bool ParensAreEmpty = Tok.Previous == Tok.MatchingParen; bool ParensAreType = !Tok.Previous || Tok.Previous->Type == TT_PointerOrReference || Tok.Previous->Type == TT_TemplateCloser || Tok.Previous->isSimpleTypeSpecifier(); bool ParensCouldEndDecl = Tok.Next && Tok.Next->isOneOf(tok::equal, tok::semi, tok::l_brace); bool IsSizeOfOrAlignOf = LeftOfParens && LeftOfParens->isOneOf(tok::kw_sizeof, tok::kw_alignof); if (ParensAreType && !ParensCouldEndDecl && !IsSizeOfOrAlignOf && ((Contexts.size() > 1 && Contexts[Contexts.size() - 2].IsExpression) || (Tok.Next && Tok.Next->isBinaryOperator()))) IsCast = true; else if (Tok.Next && Tok.Next->isNot(tok::string_literal) && (Tok.Next->Tok.isLiteral() || Tok.Next->isOneOf(tok::kw_sizeof, tok::kw_alignof))) IsCast = true; // If there is an identifier after the (), it is likely a cast, unless // there is also an identifier before the (). else if (LeftOfParens && (LeftOfParens->Tok.getIdentifierInfo() == NULL || LeftOfParens->is(tok::kw_return)) && LeftOfParens->Type != TT_OverloadedOperator && LeftOfParens->isNot(tok::at) && LeftOfParens->Type != TT_TemplateCloser && Tok.Next) { if (Tok.Next->isOneOf(tok::identifier, tok::numeric_constant)) { IsCast = true; } else { // Use heuristics to recognize c style casting. FormatToken *Prev = Tok.Previous; if (Prev && Prev->isOneOf(tok::amp, tok::star)) Prev = Prev->Previous; if (Prev && Tok.Next && Tok.Next->Next) { bool NextIsUnary = Tok.Next->isUnaryOperator() || Tok.Next->isOneOf(tok::amp, tok::star); IsCast = NextIsUnary && Tok.Next->Next->isOneOf( tok::identifier, tok::numeric_constant); } for (; Prev != Tok.MatchingParen; Prev = Prev->Previous) { if (!Prev || !Prev->isOneOf(tok::kw_const, tok::identifier)) { IsCast = false; break; } } } } return IsCast && !ParensAreEmpty; } d810 1 a810 2 TokenType determineStarAmpUsage(const FormatToken &Tok, bool IsExpression, bool InTemplateArgument) { d812 1 a812 1 if (!PrevToken) d816 1 a816 1 if (!NextToken) a826 1 PrevToken->Type == TT_ConditionalExpr || d830 1 a830 1 if (NextToken->is(tok::l_square) && NextToken->Type != TT_LambdaLSquare) d839 2 a840 9 PrevToken->isOneOf(tok::r_paren, tok::r_square, tok::kw_true, tok::kw_false) || NextToken->Tok.isLiteral() || NextToken->isOneOf(tok::kw_true, tok::kw_false) || NextToken->isUnaryOperator() || // If we know we're in a template argument, there are no named // declarations. Thus, having an identifier on the right-hand side // indicates a binary operator. (InTemplateArgument && NextToken->Tok.isAnyIdentifier())) d853 1 a853 1 if (!PrevToken || PrevToken->Type == TT_CastRParen) d873 1 a873 1 if (!PrevToken || PrevToken->Type == TT_CastRParen) d881 1 d914 1 a914 1 if (!Current || Precedence > PrecedenceArrowAndPeriod) d931 1 a931 2 FormatToken *LatestOperator = nullptr; unsigned OperatorIndex = 0; d948 1 a948 1 if (!Current || Current->closesScope() || a950 1 LatestOperator->LastOperator = true; d952 1 d971 1 a971 1 if (CurrentPrecedence == Precedence) { a972 3 Current->OperatorIndex = OperatorIndex; ++OperatorIndex; } d1013 1 a1013 1 if (!Current || Current->Type != TT_UnaryOperator) { d1054 1 a1054 1 const AnnotatedLine *NextNonCommentLine = nullptr; d1059 1 a1059 1 (*I)->First->Next == nullptr) d1062 1 a1062 1 NextNonCommentLine = (*I)->First->isNot(tok::r_brace) ? (*I) : nullptr; a1093 6 for (SmallVectorImpl::iterator I = Line.Children.begin(), E = Line.Children.end(); I != E; ++I) { calculateFormattingInformation(**I); } d1100 1 a1100 1 while (Current) { d1102 1 a1102 2 if (Current->Previous->BlockKind == BK_BracedInit && Current->Previous->opensScope()) a1105 21 // If we find a trailing comment, iterate backwards to determine whether // it seems to relate to a specific parameter. If so, break before that // parameter to avoid changing the comment's meaning. E.g. don't move 'b' // to the previous line in: // SomeFunction(a, // b, // comment // c); if (!Current->HasUnescapedNewline) { for (FormatToken *Parameter = Current->Previous; Parameter; Parameter = Parameter->Previous) { if (Parameter->isOneOf(tok::comment, tok::r_brace)) break; if (Parameter->Previous && Parameter->Previous->is(tok::comma)) { if (Parameter->Previous->Type != TT_CtorInitializerComma && Parameter->HasUnescapedNewline) Parameter->MustBreakBefore = true; break; } } } d1107 1 a1107 1 spaceRequiredBefore(Line, *Current)) { d1116 1 a1116 7 unsigned ChildSize = 0; if (Current->Previous->Children.size() == 1) { FormatToken &LastOfChild = *Current->Previous->Children[0]->Last; ChildSize = LastOfChild.isTrailingComment() ? Style.ColumnLimit : LastOfChild.TotalLength + 1; } if (Current->MustBreakBefore || Current->Previous->Children.size() > 1 || d1121 1 a1121 1 Current->ColumnWidth + ChildSize + d1137 1 a1137 1 for (Current = Line.First; Current != nullptr; Current = Current->Next) { d1143 6 d1154 1 a1154 1 while (Current) { d1175 1 a1175 2 if (Left.is(tok::comma) || (Right.is(tok::identifier) && Right.Next && Right.Next->Type == TT_DictLiteral)) d1220 5 a1224 2 bool is_short_annotation = Right.TokenText.size() < 10; return (Left.is(tok::r_paren) ? 100 : 120) + (is_short_annotation ? 50 : 0); a1276 3 } else if (Style.Language == FormatStyle::LK_JavaScript) { if (Left.TokenText == "var") return true; a1277 2 if (Left.is(tok::kw_return) && Right.isNot(tok::semi)) return true; d1344 1 a1344 2 Right.Type != TT_LambdaLSquare && Left.isNot(tok::numeric_constant) && Left.Type != TT_DictLiteral) a1347 2 if (Left.Type == TT_BlockComment) return !Left.TokenText.endswith("=*/"); d1352 2 a1353 1 Left.isOneOf(tok::kw_new, tok::kw_delete, tok::semi) || d1355 2 a1356 3 (Left.isOneOf(tok::kw_if, tok::kw_for, tok::kw_while, tok::kw_switch, tok::kw_catch, tok::kw_case) || Left.IsForEachMacro)) || d1369 2 d1374 1 a1374 2 if ((Left.isOneOf(tok::identifier, tok::greater, tok::r_square) || Left.isSimpleTypeSpecifier()) && d1417 1 a1417 1 Tok.getNextNonComment() && Tok.Type != TT_ObjCMethodExpr && d1435 1 a1435 2 Tok.Previous->Type == TT_BinaryOperator || Tok.Previous->Type == TT_ConditionalExpr) a1443 2 if (Tok.Previous->Type == TT_RegexLiteral) return false; a1448 1 const FormatToken &Left = *Right.Previous; d1452 1 a1452 1 (Right.NewlinesBefore > 0 && Right.HasUnescapedNewline); d1472 1 a1472 2 } else if (Right.is(tok::l_brace) && Right.BlockKind == BK_Block && Right.Type != TT_ObjCBlockLBrace && Right.Type != TT_DictLiteral) { a1485 20 // If the last token before a '}' is a comma or a comment, the intention is to // insert a line break after it in order to make shuffling around entries // easier. const FormatToken *BeforeClosingBrace = nullptr; if (Left.is(tok::l_brace) && Left.MatchingParen) BeforeClosingBrace = Left.MatchingParen->Previous; else if (Right.is(tok::r_brace)) BeforeClosingBrace = Right.Previous; if (BeforeClosingBrace && BeforeClosingBrace->isOneOf(tok::comma, tok::comment)) return true; if (Style.Language == FormatStyle::LK_JavaScript) { // FIXME: This might apply to other languages and token kinds. if (Right.is(tok::char_constant) && Left.is(tok::plus) && Left.Previous && Left.Previous->is(tok::char_constant)) return true; } a1493 2 if (Left.Tok.getObjCKeywordID() == tok::objc_interface) return false; d1509 3 a1513 3 if (Right.is(tok::colon) && (Right.Type != TT_CtorInitializerColon && Right.Type != TT_InlineASMColon)) return false; d1540 1 a1540 1 Left.Previous->Type == TT_CastRParen || Left.Previous->is(tok::kw_if))) d1553 5 a1557 5 // Allow breaking after a trailing annotation, e.g. after a method // declaration. if (Left.Type == TT_TrailingAnnotation) return !Right.isOneOf(tok::l_brace, tok::semi, tok::equal, tok::l_paren, tok::less, tok::coloncolon); a1564 4 if (Right.is(tok::identifier) && Right.Next && Right.Next->Type == TT_DictLiteral) return true; d1571 2 a1575 2 if (Right.Type == TT_BinaryOperator && Style.BreakBeforeBinaryOperators) return true; d1602 1 a1602 1 if (!Tok->Next) @ 1.1.1.7 log @Import clang 3.6svn r215315. @ text @d72 6 a77 2 CurrentToken->Previous->Type == TT_BinaryOperator && Contexts[Contexts.size() - 2].IsExpression && a166 2 if (CurrentToken->Previous->Type == TT_BinaryOperator) Contexts.back().IsExpression = true; d201 1 a208 1 FormatToken *Tok = CurrentToken; a210 1 updateParameterCount(Left, Tok); d269 1 a269 1 if (Left->BlockParameterCount > 1) d284 1 a284 1 FormatToken* Tok = CurrentToken; a286 1 updateParameterCount(Left, Tok); d314 2 a315 3 if (CurrentToken->is(tok::colon)) { if (CurrentToken->getPreviousNonComment()->is(tok::identifier)) CurrentToken->getPreviousNonComment()->Type = TT_SelectorName; a316 1 } d321 2 a326 6 if (Current->Type == TT_LambdaLSquare || (Current->is(tok::caret) && Current->Type == TT_UnaryOperator) || (Style.Language == FormatStyle::LK_JavaScript && Current->TokenText == "function")) { ++Left->BlockParameterCount; } d384 1 a384 1 Tok->Previous->Type = TT_SelectorName; d619 2 a620 1 CurrentToken->Role.reset(); d642 6 a647 6 LongestObjCSelectorName(0), ColonIsForRangeExpr(false), ColonIsDictLiteral(false), ColonIsObjCMethodExpr(false), FirstObjCSelectorName(nullptr), FirstStartOfName(nullptr), IsExpression(IsExpression), CanBeExpression(true), InTemplateArgument(false), InCtorInitializer(false), CaretFound(false), IsForEachMacro(false) {} d652 1 d692 1 a692 2 if ((Previous->Type == TT_BinaryOperator || Previous->Type == TT_UnaryOperator) && d745 2 a746 1 if (Current.Type == TT_UnaryOperator && Current.is(tok::caret)) d748 1 d751 1 a751 1 } else if (Current.isOneOf(tok::exclaim, tok::tilde)) { d833 1 a833 1 FormatToken *LeftOfParens = nullptr; a835 6 if (LeftOfParens && LeftOfParens->is(tok::r_paren)) return false; if (LeftOfParens && LeftOfParens->is(tok::r_square) && LeftOfParens->MatchingParen && LeftOfParens->MatchingParen->Type == TT_LambdaLSquare) return false; d856 2 a857 3 else if (LeftOfParens && (LeftOfParens->Tok.getIdentifierInfo() == nullptr || LeftOfParens->is(tok::kw_return)) && d895 1 a895 1 if (!NextToken || NextToken->is(tok::l_brace)) a911 2 if (NextToken->isOneOf(tok::kw_operator, tok::comma)) return TT_PointerOrReference; d915 1 a915 2 PrevToken->MatchingParen->Previous->isOneOf(tok::kw_typeof, tok::kw_decltype)) a929 6 // This catches some cases where evaluation order is used as control flow: // aaa && aaa->f(); const FormatToken *NextNextToken = NextToken->getNextNonComment(); if (NextNextToken && NextNextToken->is(tok::arrow)) return TT_BinaryOperator; d997 1 a997 2 (Current->is(tok::colon) && (Current->Type == TT_ObjCMethodExpr || Current->Type == TT_DictLiteral)))) d1026 1 a1026 1 if (Current && Current->Type == TT_SelectorName && d1077 1 a1077 1 Current->Type == TT_SelectorName) d1122 1 a1122 1 parseConditionalExpr(); a1182 37 // This function heuristically determines whether 'Current' starts the name of a // function declaration. static bool isFunctionDeclarationName(const FormatToken &Current) { if (Current.Type != TT_StartOfName || Current.NestingLevel != 0 || Current.Previous->Type == TT_StartOfName) return false; const FormatToken *Next = Current.Next; for (; Next; Next = Next->Next) { if (Next->Type == TT_TemplateOpener) { Next = Next->MatchingParen; } else if (Next->is(tok::coloncolon)) { Next = Next->Next; if (!Next || !Next->is(tok::identifier)) return false; } else if (Next->is(tok::l_paren)) { break; } else { return false; } } if (!Next) return false; assert(Next->is(tok::l_paren)); if (Next->Next == Next->MatchingParen) return true; for (const FormatToken *Tok = Next->Next; Tok != Next->MatchingParen; Tok = Tok->Next) { if (Tok->is(tok::kw_const) || Tok->isSimpleTypeSpecifier() || Tok->Type == TT_PointerOrReference || Tok->Type == TT_StartOfName) return true; if (Tok->isOneOf(tok::l_brace, tok::string_literal) || Tok->Tok.isLiteral()) return false; } return false; } a1196 2 if (isFunctionDeclarationName(*Current)) Current->Type = TT_FunctionDeclarationName; a1231 5 if (Style.AlwaysBreakAfterDefinitionReturnType && InFunctionDecl && Current->Type == TT_FunctionDeclarationName && Line.Last->is(tok::l_brace)) // Only for definitions. Current->MustBreakBefore = true; d1299 2 a1300 2 if (Right.Type != TT_ObjCMethodExpr && Right.Type != TT_LambdaLSquare) return 500; d1302 1 a1302 2 if (Right.Type == TT_StartOfName || Right.Type == TT_FunctionDeclarationName || Right.is(tok::kw_operator)) { d1332 2 a1333 2 if (Right.Type == TT_TrailingAnnotation && (!Right.Next || Right.Next->isNot(tok::l_paren))) { d1349 1 a1349 1 if (Right.Type == TT_SelectorName) a1357 2 if (Right.is(tok::r_brace)) return 1; a1389 4 if (Right.is(tok::period) && (Left.TokenText == "optional" || Left.TokenText == "required" || Left.TokenText == "repeated")) return true; d1419 1 a1419 1 (Left.isOneOf(tok::kw_template, tok::r_paren) || d1446 1 a1446 1 Style.PointerAlignment != FormatStyle::PAS_Left); d1448 1 a1448 2 (Left.Type != TT_PointerOrReference || Style.PointerAlignment != FormatStyle::PAS_Right)) d1453 2 a1454 2 Right.isNot(tok::l_paren) && Style.PointerAlignment != FormatStyle::PAS_Right && Left.Previous && d1482 1 a1482 1 (Left.is(tok::identifier) || Left.isFunctionLikeKeyword()) && d1496 1 a1496 2 if ((Left.isOneOf(tok::identifier, tok::greater, tok::r_square, tok::r_paren) || d1562 1 a1562 1 return Style.SpaceBeforeParens == FormatStyle::SBPO_Always; a1572 6 // Returns 'true' if 'Tok' is a brace we'd want to break before in Allman style. static bool isAllmanBrace(const FormatToken &Tok) { return Tok.is(tok::l_brace) && Tok.BlockKind == BK_Block && Tok.Type != TT_ObjCBlockLBrace && Tok.Type != TT_DictLiteral; } a1575 2 if (Right.NewlinesBefore > 1) return true; d1599 4 a1612 6 } else if (isAllmanBrace(Left) || isAllmanBrace(Right)) { return Style.BreakBeforeBraces == FormatStyle::BS_Allman || Style.BreakBeforeBraces == FormatStyle::BS_GNU; } else if (Style.Language == FormatStyle::LK_Proto && Left.isNot(tok::l_brace) && Right.Type == TT_SelectorName) { return true; d1644 1 a1644 2 if (Right.Type == TT_StartOfName || Right.Type == TT_FunctionDeclarationName || Right.is(tok::kw_operator)) d1667 1 a1667 1 if (Right.Type == TT_SelectorName) d1732 1 a1732 2 return (Left.isBinaryOperator() && !Left.isOneOf(tok::arrowstar, tok::lessless) && d1736 2 a1737 3 Right.isMemberAccess() || Right.isOneOf(tok::lessless, tok::colon, tok::l_square, tok::at, tok::kw_typename) || a1749 1 << " B=" << Tok->BlockParameterCount @ 1.1.1.7.2.1 log @Update LLVM to 3.6.1, requested by joerg in ticket 824. @ text @d35 3 a37 3 const AdditionalKeywords &Keywords) : Style(Style), Line(Line), CurrentToken(Line.First), AutoFound(false), Keywords(Keywords) { a53 4 if (Style.Language == FormatStyle::LK_Java && CurrentToken->is(tok::question)) next(); a61 5 if (CurrentToken->is(tok::question) && Style.Language == FormatStyle::LK_Java) { next(); continue; } d63 1 a63 1 tok::colon, tok::question)) d72 1 a72 1 CurrentToken->Previous->is(TT_BinaryOperator) && d108 1 a108 1 Left->Previous->is(TT_BinaryOperator))) { d113 2 a114 2 !Left->Previous->isOneOf(tok::identifier, TT_OverloadedOperator))) { d118 1 a118 1 Left->Previous->MatchingParen->is(TT_LambdaLSquare)) { a129 3 } else if (Left->Previous && Left->Previous->MatchingParen && Left->Previous->MatchingParen->is(TT_ObjCBlockLParen)) { Contexts.back().IsExpression = false; d159 1 a159 1 if (CurrentToken->Previous->is(TT_PointerOrReference) && d163 1 a163 1 if (CurrentToken->Previous->is(TT_BinaryOperator)) d182 1 a182 1 if (Left->is(TT_AttributeParen)) a183 4 if (Left->Previous && Left->Previous->is(TT_JavaAnnotation)) CurrentToken->Type = TT_JavaAnnotation; if (Left->Previous && Left->Previous->is(TT_LeadingJavaAnnotation)) CurrentToken->Type = TT_LeadingJavaAnnotation; d226 1 a226 1 Contexts.back().CanBeExpression && Left->isNot(TT_LambdaLSquare) && d228 4 a231 5 (!Parent || Parent->isOneOf(tok::colon, tok::l_square, tok::l_paren, tok::kw_return, tok::kw_throw) || Parent->isUnaryOperator() || Parent->isOneOf(TT_ObjCForIn, TT_CastRParen) || d242 1 a242 1 } else if (Left->is(TT_Unknown)) { d249 1 a249 1 Left->is(TT_ObjCMethodExpr)) { d260 1 a260 1 if (Parent && Parent->is(TT_PointerOrReference)) d276 1 a276 8 if (CurrentToken->is(tok::colon)) { if (Left->is(TT_ArraySubscriptLSquare)) { Left->Type = TT_ObjCMethodExpr; StartsObjCMethodExpr = true; Contexts.back().ColonIsObjCMethodExpr = true; if (Parent && Parent->is(tok::r_paren)) Parent->Type = TT_CastRParen; } a277 1 } d280 2 a281 2 (Left->is(TT_ArraySubscriptLSquare) || (Left->is(TT_ObjCMethodExpr) && !ColonFound))) d283 1 a283 1 FormatToken *Tok = CurrentToken; d314 4 a317 8 if (CurrentToken->isOneOf(tok::colon, tok::l_brace)) { FormatToken *Previous = CurrentToken->getPreviousNonComment(); if ((CurrentToken->is(tok::colon) || Style.Language == FormatStyle::LK_Proto) && Previous->is(tok::identifier)) Previous->Type = TT_SelectorName; if (CurrentToken->is(tok::colon)) Left->Type = TT_DictLiteral; d327 2 a328 2 if (Current->is(TT_LambdaLSquare) || (Current->is(tok::caret) && Current->is(TT_UnaryOperator)) || d330 1 a330 1 Current->is(Keywords.kw_function))) { d388 1 a388 1 Line.First->is(TT_ObjCMethodSpecifier)) { a403 5 } else if (Tok->Previous->is(tok::identifier) && Tok->Next && Tok->Next->isOneOf(tok::r_paren, tok::comma)) { // This handles a special macro in ObjC code where selectors including // the colon are passed as macro arguments. Tok->Type = TT_ObjCMethodExpr; d426 3 a428 3 !Contexts.back().IsExpression && Line.First->isNot(TT_ObjCProperty) && (!Tok->Previous || !Tok->Previous->isOneOf(tok::kw_decltype, TT_LeadingJavaAnnotation))) d440 1 a440 4 if ((!Tok->Previous || (!Tok->Previous->Tok.isLiteral() && !(Tok->Previous->is(tok::r_paren) && Contexts.size() > 1))) && parseAngle()) { d442 1 a442 1 } else { d465 1 a465 1 if (CurrentToken && CurrentToken->Previous->is(TT_BinaryOperator)) d470 1 a470 1 if (CurrentToken->Previous->is(TT_BinaryOperator)) d481 2 a482 2 if (Line.First->is(tok::kw_for) && Tok->is(Keywords.kw_in) && Tok->Previous->isNot(tok::colon)) d500 1 d508 8 d542 1 a542 2 LineType parsePreprocessorDirective() { LineType Type = LT_PreprocessorDirective; d545 1 a545 1 return Type; d548 1 a548 1 return Type; d553 1 a553 1 return Type; a556 1 next(); a557 1 Type = LT_ImportStatement; a575 1 return Type; d581 2 a582 1 return parsePreprocessorDirective(); d589 2 a590 7 if ((Style.Language == FormatStyle::LK_Java && CurrentToken->is(Keywords.kw_package)) || (Info && Info->getPPKeywordID() == tok::pp_import && CurrentToken->Next && CurrentToken->Next->isOneOf(tok::string_literal, tok::identifier, tok::kw_static))) { next(); a591 2 return LT_ImportStatement; } a592 9 // If this line starts and ends in '<' and '>', respectively, it is likely // part of "#define ". if (CurrentToken->is(tok::less) && Line.Last->is(tok::greater)) { parseIncludeDirective(); return LT_ImportStatement; } bool KeywordVirtualFound = false; bool ImportStatement = false; a595 2 if (IsImportStatement(*CurrentToken)) ImportStatement = true; a600 2 if (ImportStatement) return LT_ImportStatement; d602 1 a602 1 if (Line.First->is(TT_ObjCMethodSpecifier)) { a612 11 bool IsImportStatement(const FormatToken &Tok) { // FIXME: Closure-library specific stuff should not be hard-coded but be // configurable. return Style.Language == FormatStyle::LK_JavaScript && Tok.TokenText == "goog" && Tok.Next && Tok.Next->is(tok::period) && Tok.Next->Next && (Tok.Next->Next->TokenText == "module" || Tok.Next->Next->TokenText == "require" || Tok.Next->Next->TokenText == "provide") && Tok.Next->Next->Next && Tok.Next->Next->Next->is(tok::l_paren); } d619 5 a623 3 if (!CurrentToken->isOneOf(TT_LambdaLSquare, TT_FunctionLBrace, TT_ImplicitStringLiteral, TT_RegexLiteral, TT_TrailingReturnArrow)) d632 2 a634 3 CurrentToken->BindingStrength = Contexts.back().BindingStrength; modifyContext(*CurrentToken); determineTokenType(*CurrentToken); d686 1 a686 1 void modifyContext(const FormatToken &Current) { d688 1 a688 2 !Line.First->isOneOf(tok::kw_template, tok::kw_using, TT_UnaryOperator) && d694 1 a694 1 if (Previous->isOneOf(tok::r_square, tok::r_paren)) { d696 4 a699 2 if (!Previous) break; a700 4 if (Previous->isOneOf(TT_BinaryOperator, TT_UnaryOperator) && Previous->isOneOf(tok::star, tok::amp) && Previous->Previous && Previous->Previous->isNot(tok::equal)) Previous->Type = TT_PointerOrReference; a703 2 } else if (Current.is(TT_TrailingReturnArrow)) { Contexts.back().IsExpression = false; d711 1 a711 1 Current.Previous->MatchingParen->is(TT_FunctionTypeLParen); a719 2 if (Line.MustBeDeclaration) Contexts.back().IsExpression = Contexts.front().InCtorInitializer; d721 1 a721 1 Current.Previous->is(TT_CtorInitializerColon)) { a729 6 } void determineTokenType(FormatToken &Current) { if (!Current.is(TT_Unknown)) // The token type is already known. return; d731 1 a731 70 // Line.MightBeFunctionDecl can only be true after the parentheses of a // function declaration have been found. In this case, 'Current' is a // trailing token of this declaration and thus cannot be a name. if (Current.is(Keywords.kw_instanceof)) { Current.Type = TT_BinaryOperator; } else if (isStartOfName(Current) && (!Line.MightBeFunctionDecl || Current.NestingLevel != 0)) { Contexts.back().FirstStartOfName = &Current; Current.Type = TT_StartOfName; } else if (Current.is(tok::kw_auto)) { AutoFound = true; } else if (Current.is(tok::arrow) && Style.Language == FormatStyle::LK_Java) { Current.Type = TT_LambdaArrow; } else if (Current.is(tok::arrow) && AutoFound && Line.MustBeDeclaration && Current.NestingLevel == 0) { Current.Type = TT_TrailingReturnArrow; } else if (Current.isOneOf(tok::star, tok::amp, tok::ampamp)) { Current.Type = determineStarAmpUsage(Current, Contexts.back().CanBeExpression && Contexts.back().IsExpression, Contexts.back().InTemplateArgument); } else if (Current.isOneOf(tok::minus, tok::plus, tok::caret)) { Current.Type = determinePlusMinusCaretUsage(Current); if (Current.is(TT_UnaryOperator) && Current.is(tok::caret)) Contexts.back().CaretFound = true; } else if (Current.isOneOf(tok::minusminus, tok::plusplus)) { Current.Type = determineIncrementUsage(Current); } else if (Current.isOneOf(tok::exclaim, tok::tilde)) { Current.Type = TT_UnaryOperator; } else if (Current.is(tok::question)) { Current.Type = TT_ConditionalExpr; } else if (Current.isBinaryOperator() && (!Current.Previous || Current.Previous->isNot(tok::l_square))) { Current.Type = TT_BinaryOperator; } else if (Current.is(tok::comment)) { if (Current.TokenText.startswith("//")) Current.Type = TT_LineComment; else Current.Type = TT_BlockComment; } else if (Current.is(tok::r_paren)) { if (rParenEndsCast(Current)) Current.Type = TT_CastRParen; } else if (Current.is(tok::at) && Current.Next) { switch (Current.Next->Tok.getObjCKeywordID()) { case tok::objc_interface: case tok::objc_implementation: case tok::objc_protocol: Current.Type = TT_ObjCDecl; break; case tok::objc_property: Current.Type = TT_ObjCProperty; break; default: break; } } else if (Current.is(tok::period)) { FormatToken *PreviousNoComment = Current.getPreviousNonComment(); if (PreviousNoComment && PreviousNoComment->isOneOf(tok::comma, tok::l_brace)) Current.Type = TT_DesignatedInitializerPeriod; else if (Style.Language == FormatStyle::LK_Java && Current.Previous && Current.Previous->isOneOf(TT_JavaAnnotation, TT_LeadingJavaAnnotation)) { Current.Type = Current.Previous->Type; } } else if (Current.isOneOf(tok::identifier, tok::kw_const) && Current.Previous && !Current.Previous->isOneOf(tok::equal, tok::at) && Line.MightBeFunctionDecl && Contexts.size() == 1) { d733 32 a764 9 // function declaration have been found. Current.Type = TT_TrailingAnnotation; } else if (Style.Language == FormatStyle::LK_Java && Current.Previous) { if (Current.Previous->is(tok::at) && Current.isNot(Keywords.kw_interface)) { const FormatToken &AtToken = *Current.Previous; const FormatToken *Previous = AtToken.getPreviousNonComment(); if (!Previous || Previous->is(TT_LeadingJavaAnnotation)) Current.Type = TT_LeadingJavaAnnotation; d766 28 a793 5 Current.Type = TT_JavaAnnotation; } else if (Current.Previous->is(tok::period) && Current.Previous->isOneOf(TT_JavaAnnotation, TT_LeadingJavaAnnotation)) { Current.Type = Current.Previous->Type; a806 3 if (Tok.Previous->is(TT_LeadingJavaAnnotation)) return false; d819 1 a819 1 if (PreviousNotConst->is(TT_TemplateCloser)) a821 1 PreviousNotConst->MatchingParen->Previous->isNot(tok::period) && d830 1 a830 1 PreviousNotConst->is(TT_PointerOrReference) || d839 2 a840 3 if (LeftOfParens && LeftOfParens->is(tok::r_paren) && LeftOfParens->MatchingParen) LeftOfParens = LeftOfParens->MatchingParen->Previous; d843 1 a843 1 LeftOfParens->MatchingParen->is(TT_LambdaLSquare)) a844 9 if (Tok.Next) { if (Tok.Next->is(tok::question)) return false; if (Style.Language == FormatStyle::LK_JavaScript && Tok.Next->is(Keywords.kw_in)) return false; if (Style.Language == FormatStyle::LK_Java && Tok.Next->is(tok::l_paren)) return true; } d847 4 a850 4 bool ParensAreType = !Tok.Previous || Tok.Previous->isOneOf(TT_PointerOrReference, TT_TemplateCloser) || Tok.Previous->isSimpleTypeSpecifier(); d865 1 a865 1 else if (LeftOfParens && Tok.Next && d868 3 a870 2 !LeftOfParens->isOneOf(TT_OverloadedOperator, tok::at, TT_TemplateCloser)) { d882 2 a883 3 IsCast = NextIsUnary && !Tok.Next->is(tok::plus) && Tok.Next->Next->isOneOf(tok::identifier, tok::numeric_constant); a899 3 if (Style.Language == FormatStyle::LK_JavaScript) return TT_BinaryOperator; d905 1 a905 2 if (!NextToken || (NextToken->is(tok::l_brace) && !NextToken->getNextNonComment())) d908 2 a909 1 if (PrevToken->is(tok::coloncolon)) d915 3 a917 2 PrevToken->isOneOf(TT_BinaryOperator, TT_ConditionalExpr, TT_UnaryOperator, TT_CastRParen)) d920 1 a920 1 if (NextToken->is(tok::l_square) && NextToken->isNot(TT_LambdaLSquare)) d933 1 a933 1 tok::kw_false, tok::r_brace) || a942 4 // "&&(" is quite unlikely to be two successive unary "&". if (Tok.is(tok::ampamp) && NextToken && NextToken->is(tok::l_paren)) return TT_BinaryOperator; d951 1 a951 1 if (IsExpression && !Contexts.back().CaretFound) d959 1 a959 1 if (!PrevToken || PrevToken->is(TT_CastRParen)) d969 1 a969 1 if (PrevToken->is(TT_BinaryOperator)) d979 1 a979 1 if (!PrevToken || PrevToken->is(TT_CastRParen)) d992 1 d994 1 a994 1 const AdditionalKeywords &Keywords; d1004 5 a1008 3 ExpressionParser(const FormatStyle &Style, const AdditionalKeywords &Keywords, AnnotatedLine &Line) : Style(Style), Keywords(Keywords), Current(Line.First) {} d1014 4 a1017 3 while (Current && (Current->is(tok::kw_return) || (Current->is(tok::colon) && Current->isOneOf(TT_ObjCMethodExpr, TT_DictLiteral)))) d1046 1 a1046 1 if (Current && Current->is(TT_SelectorName) && d1055 12 a1066 5 if (!Current || (Current->closesScope() && Current->MatchingParen) || (CurrentPrecedence != -1 && CurrentPrecedence < Precedence) || (CurrentPrecedence == prec::Conditional && Precedence == prec::Assignment && Current->is(tok::colon))) { break; a1082 3 next(/*SkipPastLeadingComments=*/Precedence > 0); } } d1084 1 a1084 7 if (LatestOperator && (Current || Precedence > 0)) { LatestOperator->LastOperator = true; if (Precedence == PrecedenceArrowAndPeriod) { // Call expressions don't have a binary operator precedence. addFakeParenthesis(Start, prec::Unknown); } else { addFakeParenthesis(Start, prec::Level(Precedence)); d1094 1 a1094 2 const FormatToken *NextNonComment = Current->getNextNonComment(); if (Current->is(TT_ConditionalExpr)) d1096 2 a1097 9 else if (NextNonComment && NextNonComment->is(tok::colon) && NextNonComment->is(TT_DictLiteral)) return prec::Comma; else if (Current->is(TT_LambdaArrow)) return prec::Comma; else if (Current->isOneOf(tok::semi, TT_InlineASMColon, TT_SelectorName) || (Current->is(tok::comment) && NextNonComment && NextNonComment->is(TT_SelectorName))) d1099 1 a1099 1 else if (Current->is(TT_RangeBasedForLoopColon)) d1101 1 a1101 1 else if (Current->is(TT_BinaryOperator) || Current->is(tok::comma)) a1104 4 else if (Style.Language == FormatStyle::LK_Java && Current->isOneOf(Keywords.kw_extends, Keywords.kw_implements, Keywords.kw_throws)) return 0; d1114 1 a1114 4 FormatToken *Previous = Current->Previous; while (Previous->is(tok::comment) && Previous->Previous) Previous = Previous->Previous; ++Previous->FakeRParens; d1116 1 a1116 1 Previous->EndsBinaryExpression = true; d1123 1 a1123 1 if (!Current || Current->isNot(TT_UnaryOperator)) { a1136 3 while (Current && Current->isTrailingComment()) { next(); } d1142 2 a1143 2 parse(prec::Assignment); if (!Current || Current->isNot(TT_ConditionalExpr)) d1146 1 a1146 1 parse(prec::Assignment); d1150 1 a1150 1 void next(bool SkipPastLeadingComments = true) { d1153 1 a1153 3 while (Current && (Current->NewlinesBefore == 0 || SkipPastLeadingComments) && Current->isTrailingComment()) a1156 2 const FormatStyle &Style; const AdditionalKeywords &Keywords; d1162 2 a1163 2 void TokenAnnotator::setCommentLineLevels( SmallVectorImpl &Lines) { d1184 1 a1184 1 AnnotatingParser Parser(Style, Line, Keywords); d1189 1 a1189 1 ExpressionParser ExprParser(Style, Keywords, Line); d1192 1 a1192 1 if (Line.First->is(TT_ObjCMethodSpecifier)) d1194 1 a1194 1 else if (Line.First->is(TT_ObjCDecl)) d1196 1 a1196 1 else if (Line.First->is(TT_ObjCProperty)) d1206 3 a1208 1 if (!Current.is(TT_StartOfName) || Current.NestingLevel != 0) d1212 1 a1212 1 if (Next->is(TT_TemplateOpener)) { d1232 1 a1232 1 Tok->isOneOf(TT_PointerOrReference, TT_StartOfName)) d1256 1 a1256 1 if (Current->is(TT_LineComment)) { d1276 1 a1276 1 if (!Parameter->Previous->is(TT_CtorInitializerComma) && d1291 3 a1293 5 if (Style.AlwaysBreakAfterDefinitionReturnType && InFunctionDecl && Current->is(TT_FunctionDeclarationName) && !Line.Last->isOneOf(tok::semi, tok::comment)) // Only for definitions. // FIXME: Line.Last points to other characters than tok::semi // and tok::lbrace. d1304 1 a1304 4 const FormatToken *Prev = Current->Previous; if (Current->MustBreakBefore || Prev->Children.size() > 1 || (Prev->Children.size() == 1 && Prev->Children[0]->First->MustBreakBefore) || d1306 1 a1306 1 Current->TotalLength = Prev->TotalLength + Style.ColumnLimit; d1308 3 a1310 2 Current->TotalLength = Prev->TotalLength + Current->ColumnWidth + ChildSize + Current->SpacesRequiredBefore; d1312 1 a1312 1 if (Current->is(TT_CtorInitializerColon)) a1356 13 if (Style.Language == FormatStyle::LK_Java) { if (Right.isOneOf(Keywords.kw_extends, Keywords.kw_throws)) return 1; if (Right.is(Keywords.kw_implements)) return 2; if (Left.is(tok::comma) && Left.NestingLevel == 0) return 3; } else if (Style.Language == FormatStyle::LK_JavaScript) { if (Right.is(Keywords.kw_function)) return 100; } d1358 1 a1358 1 Right.Next->is(TT_DictLiteral))) d1363 1 a1363 1 if (!Right.isOneOf(TT_ObjCMethodExpr, TT_LambdaLSquare)) d1366 2 a1367 3 if (Right.isOneOf(TT_StartOfName, TT_FunctionDeclarationName) || Right.is(tok::kw_operator)) { d1370 1 a1370 1 if (Left.is(TT_StartOfName)) d1378 1 a1378 1 if (Left.is(TT_CastRParen)) d1386 2 a1387 1 if (Left.isOneOf(TT_RangeBasedForLoopColon, TT_InheritanceColon)) d1397 1 a1397 1 if (Right.is(TT_TrailingAnnotation) && a1398 5 // Moving trailing annotations to the next line is fine for ObjC method // declarations. if (Line.First->is(TT_ObjCMethodSpecifier)) return 10; d1414 1 a1414 1 if (Right.is(TT_SelectorName)) d1416 1 a1416 1 if (Left.is(tok::colon) && Left.is(TT_ObjCMethodExpr)) d1419 1 a1419 1 if (Left.is(tok::l_paren) && InFunctionDecl && Style.AlignAfterOpenBracket) d1425 1 a1425 5 if (Left.is(TT_TemplateOpener)) return 100; if (Left.opensScope()) { if (!Style.AlignAfterOpenBracket) return 0; a1427 3 } if (Left.is(TT_JavaAnnotation)) return 50; d1443 1 a1443 1 if (Left.is(TT_ConditionalExpr)) d1456 12 d1480 2 a1481 2 return (Right.is(TT_CastRParen) || (Left.MatchingParen && Left.MatchingParen->is(TT_CastRParen))) d1484 3 d1493 2 d1504 4 d1514 1 a1514 1 if (Right.is(TT_PointerOrReference)) d1516 1 a1516 1 (!Left.isOneOf(TT_PointerOrReference, tok::l_paren) && d1518 2 a1519 2 if (Right.is(TT_FunctionTypeLParen) && Left.isNot(tok::l_paren) && (!Left.is(TT_PointerOrReference) || d1522 4 a1525 3 if (Left.is(TT_PointerOrReference)) return Right.Tok.isLiteral() || Right.is(TT_BlockComment) || (!Right.isOneOf(TT_PointerOrReference, tok::l_paren) && d1531 2 a1532 4 return (Left.is(TT_ArrayInitializerLSquare) && Style.SpacesInContainerLiterals && Right.isNot(tok::r_square)) || (Left.is(TT_ArraySubscriptLSquare) && Style.SpacesInSquareBrackets && Right.isNot(tok::r_square)); d1534 5 a1538 8 return Right.MatchingParen && ((Style.SpacesInContainerLiterals && Right.MatchingParen->is(TT_ArrayInitializerLSquare)) || (Style.SpacesInSquareBrackets && Right.MatchingParen->is(TT_ArraySubscriptLSquare))); if (Right.is(tok::l_square) && !Right.isOneOf(TT_ObjCMethodExpr, TT_LambdaLSquare) && !Left.isOneOf(tok::numeric_constant, TT_DictLiteral)) d1541 2 a1542 8 return !Left.is(TT_ObjCMethodExpr); if (Left.is(tok::l_brace) && Right.is(tok::r_brace)) return !Left.Children.empty(); // No spaces in "{}". if ((Left.is(tok::l_brace) && Left.BlockKind != BK_Block) || (Right.is(tok::r_brace) && Right.MatchingParen && Right.MatchingParen->BlockKind != BK_Block)) return !Style.Cpp11BracedListStyle; if (Left.is(TT_BlockComment)) d1545 1 a1545 1 if (Left.is(tok::r_paren) && Left.is(TT_AttributeParen)) d1547 2 a1548 1 return Line.Type == LT_ObjCDecl || Left.is(tok::semi) || d1551 1 a1551 4 tok::kw_switch, tok::kw_case) || (Left.isOneOf(tok::kw_try, tok::kw_catch, tok::kw_new, tok::kw_delete) && (!Left.Previous || Left.Previous->isNot(tok::period))) || d1559 7 a1565 1 if (Right.is(TT_UnaryOperator)) d1567 1 a1567 1 (Left.isNot(tok::colon) || Left.isNot(TT_ObjCMethodExpr)); a1577 7 if (Left.is(TT_TemplateCloser) && Left.MatchingParen && Left.MatchingParen->Previous && Left.MatchingParen->Previous->is(tok::period)) // A.DoSomething(); return false; if (Left.is(TT_TemplateCloser) && Right.is(tok::l_square)) return false; d1582 2 a1583 28 const FormatToken &Right) { const FormatToken &Left = *Right.Previous; if (Style.Language == FormatStyle::LK_Proto) { if (Right.is(tok::period) && Left.isOneOf(Keywords.kw_optional, Keywords.kw_required, Keywords.kw_repeated)) return true; if (Right.is(tok::l_paren) && Left.isOneOf(Keywords.kw_returns, Keywords.kw_option)) return true; } else if (Style.Language == FormatStyle::LK_JavaScript) { if (Left.is(Keywords.kw_var)) return true; } else if (Style.Language == FormatStyle::LK_Java) { if (Left.is(tok::r_square) && Right.is(tok::l_brace)) return true; if (Left.is(TT_LambdaArrow) || Right.is(TT_LambdaArrow)) return true; if (Left.is(Keywords.kw_synchronized) && Right.is(tok::l_paren)) return Style.SpaceBeforeParens != FormatStyle::SBPO_Never; if ((Left.isOneOf(tok::kw_static, tok::kw_public, tok::kw_private, tok::kw_protected) || Left.isOneOf(Keywords.kw_final, Keywords.kw_abstract, Keywords.kw_native)) && Right.is(TT_TemplateOpener)) return true; } if (Right.Tok.getIdentifierInfo() && Left.Tok.getIdentifierInfo()) d1585 2 a1586 2 if (Left.is(TT_ImplicitStringLiteral)) return Right.WhitespaceRange.getBegin() != Right.WhitespaceRange.getEnd(); d1588 1 a1588 1 if (Left.is(TT_ObjCMethodSpecifier)) d1590 1 a1590 1 if (Left.is(tok::r_paren) && Right.is(tok::identifier)) d1595 1 a1595 1 (Right.is(tok::equal) || Left.is(tok::equal))) d1598 2 a1599 1 if (Right.is(TT_TrailingReturnArrow) || Left.is(TT_TrailingReturnArrow)) d1601 1 a1601 1 if (Left.is(tok::comma)) d1603 1 a1603 1 if (Right.is(tok::comma)) d1605 1 a1605 1 if (Right.isOneOf(TT_CtorInitializerColon, TT_ObjCBlockLParen)) d1607 3 a1609 3 if (Left.is(tok::kw_operator)) return Right.is(tok::coloncolon); if (Right.is(TT_OverloadedOperatorLParen)) d1611 1 a1611 1 if (Right.is(tok::colon)) d1613 9 a1621 10 Right.getNextNonComment() && Right.isNot(TT_ObjCMethodExpr) && !Left.is(tok::question) && !(Right.is(TT_InlineASMColon) && Left.is(tok::coloncolon)) && (Right.isNot(TT_DictLiteral) || Style.SpacesInContainerLiterals); if (Left.is(TT_UnaryOperator)) return Right.is(TT_BinaryOperator); if (Left.is(TT_CastRParen)) return Style.SpaceAfterCStyleCast || Right.is(TT_BinaryOperator); if (Left.is(tok::greater) && Right.is(tok::greater)) { return Right.is(TT_TemplateCloser) && Left.is(TT_TemplateCloser) && d1624 2 a1625 2 if (Right.isOneOf(tok::arrow, tok::period, tok::arrowstar, tok::periodstar) || Left.isOneOf(tok::arrow, tok::period, tok::arrowstar, tok::periodstar)) d1628 1 a1628 1 Right.getPrecedence() == prec::Assignment) d1630 3 a1632 9 if (Right.is(tok::coloncolon) && Left.isNot(tok::l_brace)) return (Left.is(TT_TemplateOpener) && Style.Standard == FormatStyle::LS_Cpp03) || !(Left.isOneOf(tok::identifier, tok::l_paren, tok::r_paren) || Left.isOneOf(TT_TemplateCloser, TT_TemplateOpener)); if ((Left.is(TT_TemplateOpener)) != (Right.is(TT_TemplateCloser))) return Style.SpacesInAngles; if ((Right.is(TT_BinaryOperator) && !Left.is(tok::l_paren)) || Left.isOneOf(TT_BinaryOperator, TT_ConditionalExpr)) d1634 1 a1634 1 if (Left.is(TT_TemplateCloser) && Right.is(tok::l_paren)) d1636 1 a1636 4 if (Right.is(TT_TemplateOpener) && Left.is(tok::r_paren) && Left.MatchingParen && Left.MatchingParen->is(TT_OverloadedOperatorLParen)) return false; if (Right.is(tok::less) && Left.isNot(tok::l_paren) && d1639 1 a1639 1 if (Right.is(TT_TrailingUnaryOperator)) d1641 1 a1641 1 if (Left.is(TT_RegexLiteral)) d1643 1 a1643 1 return spaceRequiredBetween(Line, Left, Right); d1649 1 a1649 1 !Tok.isOneOf(TT_ObjCBlockLBrace, TT_DictLiteral); d1657 3 a1659 16 // If the last token before a '}' is a comma or a trailing comment, the // intention is to insert a line break after it in order to make shuffling // around entries easier. const FormatToken *BeforeClosingBrace = nullptr; if (Left.is(tok::l_brace) && Left.BlockKind != BK_Block && Left.MatchingParen) BeforeClosingBrace = Left.MatchingParen->Previous; else if (Right.is(tok::r_brace) && Right.BlockKind != BK_Block) BeforeClosingBrace = &Left; if (BeforeClosingBrace && (BeforeClosingBrace->is(tok::comma) || BeforeClosingBrace->isTrailingComment())) return true; if (Right.is(tok::comment)) return Left.BlockKind != BK_BracedInit && Left.isNot(TT_CtorInitializerColon) && d1661 2 a1662 4 if (Right.Previous->isTrailingComment() || (Right.isStringLiteral() && Right.Previous->isStringLiteral())) return true; if (Right.Previous->IsUnterminatedLiteral) d1664 1 a1664 3 if (Right.is(tok::lessless) && Right.Next && Right.Previous->is(tok::string_literal) && Right.Next->is(tok::string_literal)) d1666 13 a1678 4 if (Right.Previous->ClosesTemplateDeclaration && Right.Previous->MatchingParen && Right.Previous->MatchingParen->NestingLevel == 0 && Style.AlwaysBreakTemplateDeclarations) d1680 2 a1681 5 if ((Right.isOneOf(TT_CtorInitializerComma, TT_CtorInitializerColon)) && Style.BreakConstructorInitializersBeforeComma && !Style.ConstructorInitializerAllOnOneLineOrOnePerLine) return true; if (Right.is(tok::string_literal) && Right.TokenText.startswith("R\"")) d1686 5 a1690 11 if (Right.Previous->is(tok::l_brace) && Right.NestingLevel == 1 && Style.Language == FormatStyle::LK_Proto) // Don't put enums onto single lines in protocol buffers. return true; if (Style.Language == FormatStyle::LK_JavaScript && Right.is(tok::r_brace) && Left.is(tok::l_brace) && !Left.Children.empty()) // Support AllowShortFunctionsOnASingleLine for JavaScript. return Style.AllowShortFunctionsOnASingleLine == FormatStyle::SFS_None || (Left.NestingLevel == 0 && Line.Level == 0 && Style.AllowShortFunctionsOnASingleLine == FormatStyle::SFS_Inline); if (isAllmanBrace(Left) || isAllmanBrace(Right)) d1693 2 a1694 2 if (Style.Language == FormatStyle::LK_Proto && Left.isNot(tok::l_brace) && Right.is(TT_SelectorName)) d1696 12 a1707 4 if (Left.is(TT_ObjCBlockLBrace) && !Style.AllowShortBlocksOnASingleLine) return true; if (Right.is(tok::lessless) && Left.is(tok::identifier) && Left.TokenText == "endl") a1714 11 if (Left.is(TT_DictLiteral) && Left.is(tok::l_brace) && Left.NestingLevel == 0) return true; } else if (Style.Language == FormatStyle::LK_Java) { if (Left.is(TT_LeadingJavaAnnotation) && Right.isNot(TT_LeadingJavaAnnotation) && Right.isNot(tok::l_paren) && Line.Last->is(tok::l_brace)) return true; if (Right.is(tok::plus) && Left.is(tok::string_literal) && Right.Next && Right.Next->is(tok::string_literal)) return true; a1722 10 if (Style.Language == FormatStyle::LK_Java) { if (Left.isOneOf(Keywords.kw_throws, Keywords.kw_extends, Keywords.kw_implements)) return false; if (Right.isOneOf(Keywords.kw_throws, Keywords.kw_extends, Keywords.kw_implements)) return true; } d1727 2 a1728 4 if (Left.isOneOf(TT_JavaAnnotation, TT_LeadingJavaAnnotation)) return !Right.is(tok::l_paren); if (Right.isOneOf(TT_StartOfName, TT_FunctionDeclarationName) || Right.is(tok::kw_operator)) d1739 1 a1739 1 if (Right.is(TT_ConditionalExpr) || Right.is(tok::question)) d1741 1 a1741 1 if (Left.is(TT_ConditionalExpr) || Left.is(tok::question)) d1743 1 a1743 1 if (Right.is(TT_InheritanceColon)) d1745 2 a1746 2 if (Right.is(tok::colon) && !Right.isOneOf(TT_CtorInitializerColon, TT_InlineASMColon)) d1748 2 a1749 1 if (Left.is(tok::colon) && (Left.isOneOf(TT_DictLiteral, TT_ObjCMethodExpr))) d1751 1 a1751 1 if (Right.is(TT_SelectorName)) d1757 3 a1759 2 if (Right.isOneOf(TT_RangeBasedForLoopColon, TT_OverloadedOperatorLParen, TT_OverloadedOperator)) d1761 1 a1761 1 if (Left.is(TT_RangeBasedForLoopColon)) d1763 1 a1763 1 if (Right.is(TT_RangeBasedForLoopColon)) d1765 2 a1766 3 if (Left.isOneOf(TT_PointerOrReference, TT_TemplateCloser, TT_UnaryOperator) || Left.is(tok::kw_operator)) d1770 1 a1770 1 if (Left.is(tok::l_paren) && Left.is(TT_AttributeParen)) d1773 2 a1774 2 (Left.Previous->isOneOf(TT_BinaryOperator, TT_CastRParen) || Left.Previous->is(tok::kw_if))) d1776 1 a1776 1 if (Right.is(TT_ImplicitStringLiteral)) d1779 1 a1779 1 if (Right.is(tok::r_paren) || Right.is(TT_TemplateCloser)) d1789 1 a1789 1 if (Left.is(TT_TrailingAnnotation)) d1799 2 a1800 1 if (Right.is(tok::identifier) && Right.Next && Right.Next->is(TT_DictLiteral)) d1803 1 a1803 1 if (Left.is(TT_CtorInitializerComma) && d1806 1 a1806 1 if (Right.is(TT_CtorInitializerComma) && d1810 1 a1810 1 Left.isNot(TT_TemplateCloser)) d1812 1 a1812 8 if (Right.is(TT_BinaryOperator) && Style.BreakBeforeBinaryOperators != FormatStyle::BOS_None && (Style.BreakBeforeBinaryOperators == FormatStyle::BOS_All || Right.getPrecedence() != prec::Assignment)) return true; if (Left.is(TT_ArrayInitializerLSquare)) return true; if (Right.is(tok::kw_typename) && Left.isNot(tok::kw_const)) d1814 1 a1814 4 if (Left.isBinaryOperator() && !Left.isOneOf(tok::arrowstar, tok::lessless) && Style.BreakBeforeBinaryOperators != FormatStyle::BOS_All && (Style.BreakBeforeBinaryOperators == FormatStyle::BOS_None || Left.getPrecedence() == prec::Assignment)) d1816 4 a1819 1 return Left.isOneOf(tok::comma, tok::coloncolon, tok::semi, tok::l_brace, d1821 3 a1823 2 Right.isMemberAccess() || Right.is(TT_TrailingReturnArrow) || Right.isOneOf(tok::lessless, tok::colon, tok::l_square, tok::at) || @ 1.1.1.8 log @Import Clang 3.6RC1 r227398. @ text @d35 3 a37 3 const AdditionalKeywords &Keywords) : Style(Style), Line(Line), CurrentToken(Line.First), AutoFound(false), Keywords(Keywords) { a53 4 if (Style.Language == FormatStyle::LK_Java && CurrentToken->is(tok::question)) next(); a61 5 if (CurrentToken->is(tok::question) && Style.Language == FormatStyle::LK_Java) { next(); continue; } d63 1 a63 1 tok::colon, tok::question)) d72 1 a72 1 CurrentToken->Previous->is(TT_BinaryOperator) && d108 1 a108 1 Left->Previous->is(TT_BinaryOperator))) { d113 2 a114 2 !Left->Previous->isOneOf(tok::identifier, TT_OverloadedOperator))) { d118 1 a118 1 Left->Previous->MatchingParen->is(TT_LambdaLSquare)) { a129 3 } else if (Left->Previous && Left->Previous->MatchingParen && Left->Previous->MatchingParen->is(TT_ObjCBlockLParen)) { Contexts.back().IsExpression = false; d159 1 a159 1 if (CurrentToken->Previous->is(TT_PointerOrReference) && d163 1 a163 1 if (CurrentToken->Previous->is(TT_BinaryOperator)) d182 1 a182 1 if (Left->is(TT_AttributeParen)) a183 4 if (Left->Previous && Left->Previous->is(TT_JavaAnnotation)) CurrentToken->Type = TT_JavaAnnotation; if (Left->Previous && Left->Previous->is(TT_LeadingJavaAnnotation)) CurrentToken->Type = TT_LeadingJavaAnnotation; d226 1 a226 1 Contexts.back().CanBeExpression && Left->isNot(TT_LambdaLSquare) && d228 4 a231 5 (!Parent || Parent->isOneOf(tok::colon, tok::l_square, tok::l_paren, tok::kw_return, tok::kw_throw) || Parent->isUnaryOperator() || Parent->isOneOf(TT_ObjCForIn, TT_CastRParen) || d242 1 a242 1 } else if (Left->is(TT_Unknown)) { d249 1 a249 1 Left->is(TT_ObjCMethodExpr)) { d260 1 a260 1 if (Parent && Parent->is(TT_PointerOrReference)) d276 1 a276 8 if (CurrentToken->is(tok::colon)) { if (Left->is(TT_ArraySubscriptLSquare)) { Left->Type = TT_ObjCMethodExpr; StartsObjCMethodExpr = true; Contexts.back().ColonIsObjCMethodExpr = true; if (Parent && Parent->is(tok::r_paren)) Parent->Type = TT_CastRParen; } a277 1 } d280 2 a281 2 (Left->is(TT_ArraySubscriptLSquare) || (Left->is(TT_ObjCMethodExpr) && !ColonFound))) d283 1 a283 1 FormatToken *Tok = CurrentToken; d314 4 a317 8 if (CurrentToken->isOneOf(tok::colon, tok::l_brace)) { FormatToken *Previous = CurrentToken->getPreviousNonComment(); if ((CurrentToken->is(tok::colon) || Style.Language == FormatStyle::LK_Proto) && Previous->is(tok::identifier)) Previous->Type = TT_SelectorName; if (CurrentToken->is(tok::colon)) Left->Type = TT_DictLiteral; d327 2 a328 2 if (Current->is(TT_LambdaLSquare) || (Current->is(tok::caret) && Current->is(TT_UnaryOperator)) || d330 1 a330 1 Current->is(Keywords.kw_function))) { d388 1 a388 1 Line.First->is(TT_ObjCMethodSpecifier)) { a403 5 } else if (Tok->Previous->is(tok::identifier) && Tok->Next && Tok->Next->isOneOf(tok::r_paren, tok::comma)) { // This handles a special macro in ObjC code where selectors including // the colon are passed as macro arguments. Tok->Type = TT_ObjCMethodExpr; d426 3 a428 3 !Contexts.back().IsExpression && Line.First->isNot(TT_ObjCProperty) && (!Tok->Previous || !Tok->Previous->isOneOf(tok::kw_decltype, TT_LeadingJavaAnnotation))) d440 1 a440 4 if ((!Tok->Previous || (!Tok->Previous->Tok.isLiteral() && !(Tok->Previous->is(tok::r_paren) && Contexts.size() > 1))) && parseAngle()) { d442 1 a442 1 } else { d465 1 a465 1 if (CurrentToken && CurrentToken->Previous->is(TT_BinaryOperator)) d470 1 a470 1 if (CurrentToken->Previous->is(TT_BinaryOperator)) d481 2 a482 2 if (Line.First->is(tok::kw_for) && Tok->is(Keywords.kw_in) && Tok->Previous->isNot(tok::colon)) d500 1 d508 8 d542 1 a542 2 LineType parsePreprocessorDirective() { LineType Type = LT_PreprocessorDirective; d545 1 a545 1 return Type; d548 1 a548 1 return Type; d553 1 a553 1 return Type; a556 1 next(); a557 1 Type = LT_ImportStatement; a575 1 return Type; d581 2 a582 1 return parsePreprocessorDirective(); d589 2 a590 7 if ((Style.Language == FormatStyle::LK_Java && CurrentToken->is(Keywords.kw_package)) || (Info && Info->getPPKeywordID() == tok::pp_import && CurrentToken->Next && CurrentToken->Next->isOneOf(tok::string_literal, tok::identifier, tok::kw_static))) { next(); a591 2 return LT_ImportStatement; } a592 9 // If this line starts and ends in '<' and '>', respectively, it is likely // part of "#define ". if (CurrentToken->is(tok::less) && Line.Last->is(tok::greater)) { parseIncludeDirective(); return LT_ImportStatement; } bool KeywordVirtualFound = false; bool ImportStatement = false; a595 2 if (IsImportStatement(*CurrentToken)) ImportStatement = true; a600 2 if (ImportStatement) return LT_ImportStatement; d602 1 a602 1 if (Line.First->is(TT_ObjCMethodSpecifier)) { a612 11 bool IsImportStatement(const FormatToken &Tok) { // FIXME: Closure-library specific stuff should not be hard-coded but be // configurable. return Style.Language == FormatStyle::LK_JavaScript && Tok.TokenText == "goog" && Tok.Next && Tok.Next->is(tok::period) && Tok.Next->Next && (Tok.Next->Next->TokenText == "module" || Tok.Next->Next->TokenText == "require" || Tok.Next->Next->TokenText == "provide") && Tok.Next->Next->Next && Tok.Next->Next->Next->is(tok::l_paren); } d619 5 a623 3 if (!CurrentToken->isOneOf(TT_LambdaLSquare, TT_FunctionLBrace, TT_ImplicitStringLiteral, TT_RegexLiteral, TT_TrailingReturnArrow)) d632 2 a634 3 CurrentToken->BindingStrength = Contexts.back().BindingStrength; modifyContext(*CurrentToken); determineTokenType(*CurrentToken); d686 1 a686 1 void modifyContext(const FormatToken &Current) { d688 1 a688 2 !Line.First->isOneOf(tok::kw_template, tok::kw_using, TT_UnaryOperator) && d694 1 a694 1 if (Previous->isOneOf(tok::r_square, tok::r_paren)) { d696 4 a699 2 if (!Previous) break; a700 4 if (Previous->isOneOf(TT_BinaryOperator, TT_UnaryOperator) && Previous->isOneOf(tok::star, tok::amp) && Previous->Previous && Previous->Previous->isNot(tok::equal)) Previous->Type = TT_PointerOrReference; a703 2 } else if (Current.is(TT_TrailingReturnArrow)) { Contexts.back().IsExpression = false; d711 1 a711 1 Current.Previous->MatchingParen->is(TT_FunctionTypeLParen); a719 2 if (Line.MustBeDeclaration) Contexts.back().IsExpression = Contexts.front().InCtorInitializer; d721 1 a721 1 Current.Previous->is(TT_CtorInitializerColon)) { a729 6 } void determineTokenType(FormatToken &Current) { if (!Current.is(TT_Unknown)) // The token type is already known. return; d731 1 a731 70 // Line.MightBeFunctionDecl can only be true after the parentheses of a // function declaration have been found. In this case, 'Current' is a // trailing token of this declaration and thus cannot be a name. if (Current.is(Keywords.kw_instanceof)) { Current.Type = TT_BinaryOperator; } else if (isStartOfName(Current) && (!Line.MightBeFunctionDecl || Current.NestingLevel != 0)) { Contexts.back().FirstStartOfName = &Current; Current.Type = TT_StartOfName; } else if (Current.is(tok::kw_auto)) { AutoFound = true; } else if (Current.is(tok::arrow) && Style.Language == FormatStyle::LK_Java) { Current.Type = TT_LambdaArrow; } else if (Current.is(tok::arrow) && AutoFound && Line.MustBeDeclaration && Current.NestingLevel == 0) { Current.Type = TT_TrailingReturnArrow; } else if (Current.isOneOf(tok::star, tok::amp, tok::ampamp)) { Current.Type = determineStarAmpUsage(Current, Contexts.back().CanBeExpression && Contexts.back().IsExpression, Contexts.back().InTemplateArgument); } else if (Current.isOneOf(tok::minus, tok::plus, tok::caret)) { Current.Type = determinePlusMinusCaretUsage(Current); if (Current.is(TT_UnaryOperator) && Current.is(tok::caret)) Contexts.back().CaretFound = true; } else if (Current.isOneOf(tok::minusminus, tok::plusplus)) { Current.Type = determineIncrementUsage(Current); } else if (Current.isOneOf(tok::exclaim, tok::tilde)) { Current.Type = TT_UnaryOperator; } else if (Current.is(tok::question)) { Current.Type = TT_ConditionalExpr; } else if (Current.isBinaryOperator() && (!Current.Previous || Current.Previous->isNot(tok::l_square))) { Current.Type = TT_BinaryOperator; } else if (Current.is(tok::comment)) { if (Current.TokenText.startswith("//")) Current.Type = TT_LineComment; else Current.Type = TT_BlockComment; } else if (Current.is(tok::r_paren)) { if (rParenEndsCast(Current)) Current.Type = TT_CastRParen; } else if (Current.is(tok::at) && Current.Next) { switch (Current.Next->Tok.getObjCKeywordID()) { case tok::objc_interface: case tok::objc_implementation: case tok::objc_protocol: Current.Type = TT_ObjCDecl; break; case tok::objc_property: Current.Type = TT_ObjCProperty; break; default: break; } } else if (Current.is(tok::period)) { FormatToken *PreviousNoComment = Current.getPreviousNonComment(); if (PreviousNoComment && PreviousNoComment->isOneOf(tok::comma, tok::l_brace)) Current.Type = TT_DesignatedInitializerPeriod; else if (Style.Language == FormatStyle::LK_Java && Current.Previous && Current.Previous->isOneOf(TT_JavaAnnotation, TT_LeadingJavaAnnotation)) { Current.Type = Current.Previous->Type; } } else if (Current.isOneOf(tok::identifier, tok::kw_const) && Current.Previous && !Current.Previous->isOneOf(tok::equal, tok::at) && Line.MightBeFunctionDecl && Contexts.size() == 1) { d733 32 a764 9 // function declaration have been found. Current.Type = TT_TrailingAnnotation; } else if (Style.Language == FormatStyle::LK_Java && Current.Previous) { if (Current.Previous->is(tok::at) && Current.isNot(Keywords.kw_interface)) { const FormatToken &AtToken = *Current.Previous; const FormatToken *Previous = AtToken.getPreviousNonComment(); if (!Previous || Previous->is(TT_LeadingJavaAnnotation)) Current.Type = TT_LeadingJavaAnnotation; d766 28 a793 5 Current.Type = TT_JavaAnnotation; } else if (Current.Previous->is(tok::period) && Current.Previous->isOneOf(TT_JavaAnnotation, TT_LeadingJavaAnnotation)) { Current.Type = Current.Previous->Type; a806 3 if (Tok.Previous->is(TT_LeadingJavaAnnotation)) return false; d819 1 a819 1 if (PreviousNotConst->is(TT_TemplateCloser)) a821 1 PreviousNotConst->MatchingParen->Previous->isNot(tok::period) && d830 1 a830 1 PreviousNotConst->is(TT_PointerOrReference) || d839 2 a840 3 if (LeftOfParens && LeftOfParens->is(tok::r_paren) && LeftOfParens->MatchingParen) LeftOfParens = LeftOfParens->MatchingParen->Previous; d843 1 a843 1 LeftOfParens->MatchingParen->is(TT_LambdaLSquare)) a844 9 if (Tok.Next) { if (Tok.Next->is(tok::question)) return false; if (Style.Language == FormatStyle::LK_JavaScript && Tok.Next->is(Keywords.kw_in)) return false; if (Style.Language == FormatStyle::LK_Java && Tok.Next->is(tok::l_paren)) return true; } d847 4 a850 4 bool ParensAreType = !Tok.Previous || Tok.Previous->isOneOf(TT_PointerOrReference, TT_TemplateCloser) || Tok.Previous->isSimpleTypeSpecifier(); d865 1 a865 1 else if (LeftOfParens && Tok.Next && d868 3 a870 2 !LeftOfParens->isOneOf(TT_OverloadedOperator, tok::at, TT_TemplateCloser)) { d882 2 a883 3 IsCast = NextIsUnary && !Tok.Next->is(tok::plus) && Tok.Next->Next->isOneOf(tok::identifier, tok::numeric_constant); a899 3 if (Style.Language == FormatStyle::LK_JavaScript) return TT_BinaryOperator; d905 1 a905 2 if (!NextToken || (NextToken->is(tok::l_brace) && !NextToken->getNextNonComment())) d908 2 a909 1 if (PrevToken->is(tok::coloncolon)) d915 3 a917 2 PrevToken->isOneOf(TT_BinaryOperator, TT_ConditionalExpr, TT_UnaryOperator, TT_CastRParen)) d920 1 a920 1 if (NextToken->is(tok::l_square) && NextToken->isNot(TT_LambdaLSquare)) d933 1 a933 1 tok::kw_false, tok::r_brace) || a942 4 // "&&(" is quite unlikely to be two successive unary "&". if (Tok.is(tok::ampamp) && NextToken && NextToken->is(tok::l_paren)) return TT_BinaryOperator; d951 1 a951 1 if (IsExpression && !Contexts.back().CaretFound) d959 1 a959 1 if (!PrevToken || PrevToken->is(TT_CastRParen)) d969 1 a969 1 if (PrevToken->is(TT_BinaryOperator)) d979 1 a979 1 if (!PrevToken || PrevToken->is(TT_CastRParen)) d992 1 d994 1 a994 1 const AdditionalKeywords &Keywords; d1004 5 a1008 3 ExpressionParser(const FormatStyle &Style, const AdditionalKeywords &Keywords, AnnotatedLine &Line) : Style(Style), Keywords(Keywords), Current(Line.First) {} d1014 4 a1017 3 while (Current && (Current->is(tok::kw_return) || (Current->is(tok::colon) && Current->isOneOf(TT_ObjCMethodExpr, TT_DictLiteral)))) d1046 1 a1046 1 if (Current && Current->is(TT_SelectorName) && d1055 12 a1066 5 if (!Current || (Current->closesScope() && Current->MatchingParen) || (CurrentPrecedence != -1 && CurrentPrecedence < Precedence) || (CurrentPrecedence == prec::Conditional && Precedence == prec::Assignment && Current->is(tok::colon))) { break; a1082 3 next(/*SkipPastLeadingComments=*/Precedence > 0); } } d1084 1 a1084 7 if (LatestOperator && (Current || Precedence > 0)) { LatestOperator->LastOperator = true; if (Precedence == PrecedenceArrowAndPeriod) { // Call expressions don't have a binary operator precedence. addFakeParenthesis(Start, prec::Unknown); } else { addFakeParenthesis(Start, prec::Level(Precedence)); d1094 1 a1094 2 const FormatToken *NextNonComment = Current->getNextNonComment(); if (Current->is(TT_ConditionalExpr)) d1096 2 a1097 9 else if (NextNonComment && NextNonComment->is(tok::colon) && NextNonComment->is(TT_DictLiteral)) return prec::Comma; else if (Current->is(TT_LambdaArrow)) return prec::Comma; else if (Current->isOneOf(tok::semi, TT_InlineASMColon, TT_SelectorName) || (Current->is(tok::comment) && NextNonComment && NextNonComment->is(TT_SelectorName))) d1099 1 a1099 1 else if (Current->is(TT_RangeBasedForLoopColon)) d1101 1 a1101 1 else if (Current->is(TT_BinaryOperator) || Current->is(tok::comma)) a1104 4 else if (Style.Language == FormatStyle::LK_Java && Current->isOneOf(Keywords.kw_extends, Keywords.kw_implements, Keywords.kw_throws)) return 0; d1114 1 a1114 4 FormatToken *Previous = Current->Previous; while (Previous->is(tok::comment) && Previous->Previous) Previous = Previous->Previous; ++Previous->FakeRParens; d1116 1 a1116 1 Previous->EndsBinaryExpression = true; d1123 1 a1123 1 if (!Current || Current->isNot(TT_UnaryOperator)) { a1136 3 while (Current && Current->isTrailingComment()) { next(); } d1142 2 a1143 2 parse(prec::Assignment); if (!Current || Current->isNot(TT_ConditionalExpr)) d1146 1 a1146 1 parse(prec::Assignment); d1150 1 a1150 1 void next(bool SkipPastLeadingComments = true) { d1153 1 a1153 3 while (Current && (Current->NewlinesBefore == 0 || SkipPastLeadingComments) && Current->isTrailingComment()) a1156 2 const FormatStyle &Style; const AdditionalKeywords &Keywords; d1162 2 a1163 2 void TokenAnnotator::setCommentLineLevels( SmallVectorImpl &Lines) { d1184 1 a1184 1 AnnotatingParser Parser(Style, Line, Keywords); d1189 1 a1189 1 ExpressionParser ExprParser(Style, Keywords, Line); d1192 1 a1192 1 if (Line.First->is(TT_ObjCMethodSpecifier)) d1194 1 a1194 1 else if (Line.First->is(TT_ObjCDecl)) d1196 1 a1196 1 else if (Line.First->is(TT_ObjCProperty)) d1206 3 a1208 1 if (!Current.is(TT_StartOfName) || Current.NestingLevel != 0) d1212 1 a1212 1 if (Next->is(TT_TemplateOpener)) { d1232 1 a1232 1 Tok->isOneOf(TT_PointerOrReference, TT_StartOfName)) d1256 1 a1256 1 if (Current->is(TT_LineComment)) { d1276 1 a1276 1 if (!Parameter->Previous->is(TT_CtorInitializerComma) && d1291 3 a1293 5 if (Style.AlwaysBreakAfterDefinitionReturnType && InFunctionDecl && Current->is(TT_FunctionDeclarationName) && !Line.Last->isOneOf(tok::semi, tok::comment)) // Only for definitions. // FIXME: Line.Last points to other characters than tok::semi // and tok::lbrace. d1304 1 a1304 4 const FormatToken *Prev = Current->Previous; if (Current->MustBreakBefore || Prev->Children.size() > 1 || (Prev->Children.size() == 1 && Prev->Children[0]->First->MustBreakBefore) || d1306 1 a1306 1 Current->TotalLength = Prev->TotalLength + Style.ColumnLimit; d1308 3 a1310 2 Current->TotalLength = Prev->TotalLength + Current->ColumnWidth + ChildSize + Current->SpacesRequiredBefore; d1312 1 a1312 1 if (Current->is(TT_CtorInitializerColon)) a1356 13 if (Style.Language == FormatStyle::LK_Java) { if (Right.isOneOf(Keywords.kw_extends, Keywords.kw_throws)) return 1; if (Right.is(Keywords.kw_implements)) return 2; if (Left.is(tok::comma) && Left.NestingLevel == 0) return 3; } else if (Style.Language == FormatStyle::LK_JavaScript) { if (Right.is(Keywords.kw_function)) return 100; } d1358 1 a1358 1 Right.Next->is(TT_DictLiteral))) d1363 1 a1363 1 if (!Right.isOneOf(TT_ObjCMethodExpr, TT_LambdaLSquare)) d1366 2 a1367 3 if (Right.isOneOf(TT_StartOfName, TT_FunctionDeclarationName) || Right.is(tok::kw_operator)) { d1370 1 a1370 1 if (Left.is(TT_StartOfName)) d1378 1 a1378 1 if (Left.is(TT_CastRParen)) d1386 2 a1387 1 if (Left.isOneOf(TT_RangeBasedForLoopColon, TT_InheritanceColon)) d1397 1 a1397 1 if (Right.is(TT_TrailingAnnotation) && a1398 5 // Moving trailing annotations to the next line is fine for ObjC method // declarations. if (Line.First->is(TT_ObjCMethodSpecifier)) return 10; d1414 1 a1414 1 if (Right.is(TT_SelectorName)) d1416 1 a1416 1 if (Left.is(tok::colon) && Left.is(TT_ObjCMethodExpr)) d1419 1 a1419 1 if (Left.is(tok::l_paren) && InFunctionDecl && Style.AlignAfterOpenBracket) d1425 1 a1425 5 if (Left.is(TT_TemplateOpener)) return 100; if (Left.opensScope()) { if (!Style.AlignAfterOpenBracket) return 0; a1427 3 } if (Left.is(TT_JavaAnnotation)) return 50; d1443 1 a1443 1 if (Left.is(TT_ConditionalExpr)) d1456 12 d1480 2 a1481 2 return (Right.is(TT_CastRParen) || (Left.MatchingParen && Left.MatchingParen->is(TT_CastRParen))) d1484 3 d1493 2 d1504 4 d1514 1 a1514 1 if (Right.is(TT_PointerOrReference)) d1516 1 a1516 1 (!Left.isOneOf(TT_PointerOrReference, tok::l_paren) && d1518 2 a1519 2 if (Right.is(TT_FunctionTypeLParen) && Left.isNot(tok::l_paren) && (!Left.is(TT_PointerOrReference) || d1522 4 a1525 3 if (Left.is(TT_PointerOrReference)) return Right.Tok.isLiteral() || Right.is(TT_BlockComment) || (!Right.isOneOf(TT_PointerOrReference, tok::l_paren) && d1531 2 a1532 4 return (Left.is(TT_ArrayInitializerLSquare) && Style.SpacesInContainerLiterals && Right.isNot(tok::r_square)) || (Left.is(TT_ArraySubscriptLSquare) && Style.SpacesInSquareBrackets && Right.isNot(tok::r_square)); d1534 5 a1538 8 return Right.MatchingParen && ((Style.SpacesInContainerLiterals && Right.MatchingParen->is(TT_ArrayInitializerLSquare)) || (Style.SpacesInSquareBrackets && Right.MatchingParen->is(TT_ArraySubscriptLSquare))); if (Right.is(tok::l_square) && !Right.isOneOf(TT_ObjCMethodExpr, TT_LambdaLSquare) && !Left.isOneOf(tok::numeric_constant, TT_DictLiteral)) d1541 2 a1542 8 return !Left.is(TT_ObjCMethodExpr); if (Left.is(tok::l_brace) && Right.is(tok::r_brace)) return !Left.Children.empty(); // No spaces in "{}". if ((Left.is(tok::l_brace) && Left.BlockKind != BK_Block) || (Right.is(tok::r_brace) && Right.MatchingParen && Right.MatchingParen->BlockKind != BK_Block)) return !Style.Cpp11BracedListStyle; if (Left.is(TT_BlockComment)) d1545 1 a1545 1 if (Left.is(tok::r_paren) && Left.is(TT_AttributeParen)) d1547 2 a1548 1 return Line.Type == LT_ObjCDecl || Left.is(tok::semi) || d1551 1 a1551 4 tok::kw_switch, tok::kw_case) || (Left.isOneOf(tok::kw_try, tok::kw_catch, tok::kw_new, tok::kw_delete) && (!Left.Previous || Left.Previous->isNot(tok::period))) || d1559 7 a1565 1 if (Right.is(TT_UnaryOperator)) d1567 1 a1567 1 (Left.isNot(tok::colon) || Left.isNot(TT_ObjCMethodExpr)); a1577 7 if (Left.is(TT_TemplateCloser) && Left.MatchingParen && Left.MatchingParen->Previous && Left.MatchingParen->Previous->is(tok::period)) // A.DoSomething(); return false; if (Left.is(TT_TemplateCloser) && Right.is(tok::l_square)) return false; d1582 2 a1583 28 const FormatToken &Right) { const FormatToken &Left = *Right.Previous; if (Style.Language == FormatStyle::LK_Proto) { if (Right.is(tok::period) && Left.isOneOf(Keywords.kw_optional, Keywords.kw_required, Keywords.kw_repeated)) return true; if (Right.is(tok::l_paren) && Left.isOneOf(Keywords.kw_returns, Keywords.kw_option)) return true; } else if (Style.Language == FormatStyle::LK_JavaScript) { if (Left.is(Keywords.kw_var)) return true; } else if (Style.Language == FormatStyle::LK_Java) { if (Left.is(tok::r_square) && Right.is(tok::l_brace)) return true; if (Left.is(TT_LambdaArrow) || Right.is(TT_LambdaArrow)) return true; if (Left.is(Keywords.kw_synchronized) && Right.is(tok::l_paren)) return Style.SpaceBeforeParens != FormatStyle::SBPO_Never; if ((Left.isOneOf(tok::kw_static, tok::kw_public, tok::kw_private, tok::kw_protected) || Left.isOneOf(Keywords.kw_final, Keywords.kw_abstract, Keywords.kw_native)) && Right.is(TT_TemplateOpener)) return true; } if (Right.Tok.getIdentifierInfo() && Left.Tok.getIdentifierInfo()) d1585 2 a1586 2 if (Left.is(TT_ImplicitStringLiteral)) return Right.WhitespaceRange.getBegin() != Right.WhitespaceRange.getEnd(); d1588 1 a1588 1 if (Left.is(TT_ObjCMethodSpecifier)) d1590 1 a1590 1 if (Left.is(tok::r_paren) && Right.is(tok::identifier)) d1595 1 a1595 1 (Right.is(tok::equal) || Left.is(tok::equal))) d1598 2 a1599 1 if (Right.is(TT_TrailingReturnArrow) || Left.is(TT_TrailingReturnArrow)) d1601 1 a1601 1 if (Left.is(tok::comma)) d1603 1 a1603 1 if (Right.is(tok::comma)) d1605 1 a1605 1 if (Right.isOneOf(TT_CtorInitializerColon, TT_ObjCBlockLParen)) d1607 3 a1609 3 if (Left.is(tok::kw_operator)) return Right.is(tok::coloncolon); if (Right.is(TT_OverloadedOperatorLParen)) d1611 1 a1611 1 if (Right.is(tok::colon)) d1613 9 a1621 10 Right.getNextNonComment() && Right.isNot(TT_ObjCMethodExpr) && !Left.is(tok::question) && !(Right.is(TT_InlineASMColon) && Left.is(tok::coloncolon)) && (Right.isNot(TT_DictLiteral) || Style.SpacesInContainerLiterals); if (Left.is(TT_UnaryOperator)) return Right.is(TT_BinaryOperator); if (Left.is(TT_CastRParen)) return Style.SpaceAfterCStyleCast || Right.is(TT_BinaryOperator); if (Left.is(tok::greater) && Right.is(tok::greater)) { return Right.is(TT_TemplateCloser) && Left.is(TT_TemplateCloser) && d1624 2 a1625 2 if (Right.isOneOf(tok::arrow, tok::period, tok::arrowstar, tok::periodstar) || Left.isOneOf(tok::arrow, tok::period, tok::arrowstar, tok::periodstar)) d1628 1 a1628 1 Right.getPrecedence() == prec::Assignment) d1630 3 a1632 9 if (Right.is(tok::coloncolon) && Left.isNot(tok::l_brace)) return (Left.is(TT_TemplateOpener) && Style.Standard == FormatStyle::LS_Cpp03) || !(Left.isOneOf(tok::identifier, tok::l_paren, tok::r_paren) || Left.isOneOf(TT_TemplateCloser, TT_TemplateOpener)); if ((Left.is(TT_TemplateOpener)) != (Right.is(TT_TemplateCloser))) return Style.SpacesInAngles; if ((Right.is(TT_BinaryOperator) && !Left.is(tok::l_paren)) || Left.isOneOf(TT_BinaryOperator, TT_ConditionalExpr)) d1634 1 a1634 1 if (Left.is(TT_TemplateCloser) && Right.is(tok::l_paren)) d1636 1 a1636 4 if (Right.is(TT_TemplateOpener) && Left.is(tok::r_paren) && Left.MatchingParen && Left.MatchingParen->is(TT_OverloadedOperatorLParen)) return false; if (Right.is(tok::less) && Left.isNot(tok::l_paren) && d1639 1 a1639 1 if (Right.is(TT_TrailingUnaryOperator)) d1641 1 a1641 1 if (Left.is(TT_RegexLiteral)) d1643 1 a1643 1 return spaceRequiredBetween(Line, Left, Right); d1649 1 a1649 1 !Tok.isOneOf(TT_ObjCBlockLBrace, TT_DictLiteral); d1657 3 a1659 16 // If the last token before a '}' is a comma or a trailing comment, the // intention is to insert a line break after it in order to make shuffling // around entries easier. const FormatToken *BeforeClosingBrace = nullptr; if (Left.is(tok::l_brace) && Left.BlockKind != BK_Block && Left.MatchingParen) BeforeClosingBrace = Left.MatchingParen->Previous; else if (Right.is(tok::r_brace) && Right.BlockKind != BK_Block) BeforeClosingBrace = &Left; if (BeforeClosingBrace && (BeforeClosingBrace->is(tok::comma) || BeforeClosingBrace->isTrailingComment())) return true; if (Right.is(tok::comment)) return Left.BlockKind != BK_BracedInit && Left.isNot(TT_CtorInitializerColon) && d1661 2 a1662 4 if (Right.Previous->isTrailingComment() || (Right.isStringLiteral() && Right.Previous->isStringLiteral())) return true; if (Right.Previous->IsUnterminatedLiteral) d1664 1 a1664 3 if (Right.is(tok::lessless) && Right.Next && Right.Previous->is(tok::string_literal) && Right.Next->is(tok::string_literal)) d1666 13 a1678 4 if (Right.Previous->ClosesTemplateDeclaration && Right.Previous->MatchingParen && Right.Previous->MatchingParen->NestingLevel == 0 && Style.AlwaysBreakTemplateDeclarations) d1680 2 a1681 5 if ((Right.isOneOf(TT_CtorInitializerComma, TT_CtorInitializerColon)) && Style.BreakConstructorInitializersBeforeComma && !Style.ConstructorInitializerAllOnOneLineOrOnePerLine) return true; if (Right.is(tok::string_literal) && Right.TokenText.startswith("R\"")) d1686 5 a1690 11 if (Right.Previous->is(tok::l_brace) && Right.NestingLevel == 1 && Style.Language == FormatStyle::LK_Proto) // Don't put enums onto single lines in protocol buffers. return true; if (Style.Language == FormatStyle::LK_JavaScript && Right.is(tok::r_brace) && Left.is(tok::l_brace) && !Left.Children.empty()) // Support AllowShortFunctionsOnASingleLine for JavaScript. return Style.AllowShortFunctionsOnASingleLine == FormatStyle::SFS_None || (Left.NestingLevel == 0 && Line.Level == 0 && Style.AllowShortFunctionsOnASingleLine == FormatStyle::SFS_Inline); if (isAllmanBrace(Left) || isAllmanBrace(Right)) d1693 2 a1694 2 if (Style.Language == FormatStyle::LK_Proto && Left.isNot(tok::l_brace) && Right.is(TT_SelectorName)) d1696 12 a1707 4 if (Left.is(TT_ObjCBlockLBrace) && !Style.AllowShortBlocksOnASingleLine) return true; if (Right.is(tok::lessless) && Left.is(tok::identifier) && Left.TokenText == "endl") a1714 11 if (Left.is(TT_DictLiteral) && Left.is(tok::l_brace) && Left.NestingLevel == 0) return true; } else if (Style.Language == FormatStyle::LK_Java) { if (Left.is(TT_LeadingJavaAnnotation) && Right.isNot(TT_LeadingJavaAnnotation) && Right.isNot(tok::l_paren) && Line.Last->is(tok::l_brace)) return true; if (Right.is(tok::plus) && Left.is(tok::string_literal) && Right.Next && Right.Next->is(tok::string_literal)) return true; a1722 10 if (Style.Language == FormatStyle::LK_Java) { if (Left.isOneOf(Keywords.kw_throws, Keywords.kw_extends, Keywords.kw_implements)) return false; if (Right.isOneOf(Keywords.kw_throws, Keywords.kw_extends, Keywords.kw_implements)) return true; } d1727 2 a1728 4 if (Left.isOneOf(TT_JavaAnnotation, TT_LeadingJavaAnnotation)) return !Right.is(tok::l_paren); if (Right.isOneOf(TT_StartOfName, TT_FunctionDeclarationName) || Right.is(tok::kw_operator)) d1739 1 a1739 1 if (Right.is(TT_ConditionalExpr) || Right.is(tok::question)) d1741 1 a1741 1 if (Left.is(TT_ConditionalExpr) || Left.is(tok::question)) d1743 1 a1743 1 if (Right.is(TT_InheritanceColon)) d1745 2 a1746 2 if (Right.is(tok::colon) && !Right.isOneOf(TT_CtorInitializerColon, TT_InlineASMColon)) d1748 2 a1749 1 if (Left.is(tok::colon) && (Left.isOneOf(TT_DictLiteral, TT_ObjCMethodExpr))) d1751 1 a1751 1 if (Right.is(TT_SelectorName)) d1757 3 a1759 2 if (Right.isOneOf(TT_RangeBasedForLoopColon, TT_OverloadedOperatorLParen, TT_OverloadedOperator)) d1761 1 a1761 1 if (Left.is(TT_RangeBasedForLoopColon)) d1763 1 a1763 1 if (Right.is(TT_RangeBasedForLoopColon)) d1765 2 a1766 3 if (Left.isOneOf(TT_PointerOrReference, TT_TemplateCloser, TT_UnaryOperator) || Left.is(tok::kw_operator)) d1770 1 a1770 1 if (Left.is(tok::l_paren) && Left.is(TT_AttributeParen)) d1773 2 a1774 2 (Left.Previous->isOneOf(TT_BinaryOperator, TT_CastRParen) || Left.Previous->is(tok::kw_if))) d1776 1 a1776 1 if (Right.is(TT_ImplicitStringLiteral)) d1779 1 a1779 1 if (Right.is(tok::r_paren) || Right.is(TT_TemplateCloser)) d1789 1 a1789 1 if (Left.is(TT_TrailingAnnotation)) d1799 2 a1800 1 if (Right.is(tok::identifier) && Right.Next && Right.Next->is(TT_DictLiteral)) d1803 1 a1803 1 if (Left.is(TT_CtorInitializerComma) && d1806 1 a1806 1 if (Right.is(TT_CtorInitializerComma) && d1810 1 a1810 1 Left.isNot(TT_TemplateCloser)) d1812 1 a1812 8 if (Right.is(TT_BinaryOperator) && Style.BreakBeforeBinaryOperators != FormatStyle::BOS_None && (Style.BreakBeforeBinaryOperators == FormatStyle::BOS_All || Right.getPrecedence() != prec::Assignment)) return true; if (Left.is(TT_ArrayInitializerLSquare)) return true; if (Right.is(tok::kw_typename) && Left.isNot(tok::kw_const)) d1814 1 a1814 4 if (Left.isBinaryOperator() && !Left.isOneOf(tok::arrowstar, tok::lessless) && Style.BreakBeforeBinaryOperators != FormatStyle::BOS_All && (Style.BreakBeforeBinaryOperators == FormatStyle::BOS_None || Left.getPrecedence() == prec::Assignment)) d1816 4 a1819 1 return Left.isOneOf(tok::comma, tok::coloncolon, tok::semi, tok::l_brace, d1821 3 a1823 2 Right.isMemberAccess() || Right.is(TT_TrailingReturnArrow) || Right.isOneOf(tok::lessless, tok::colon, tok::l_square, tok::at) || @ 1.1.1.9 log @Import Clang 3.8.0rc3 r261930. @ text @a17 1 #include "llvm/ADT/SmallPtrSet.h" d46 1 a47 7 Left->ParentBracket = Contexts.back().ContextKind; ScopedContextCreator ContextCreator(*this, tok::less, 10); // If this angle is in the context of an expression, we need to be more // hesitant to detect it as opening template parameters. bool InExprContext = Contexts.back().IsExpression; d71 2 a72 2 if (CurrentToken->isOneOf(tok::r_paren, tok::r_square, tok::r_brace) || (CurrentToken->isOneOf(tok::colon, tok::question) && InExprContext)) d83 1 a83 1 !Line.startsWith(tok::kw_template)) a94 2 FormatToken *Left = CurrentToken->Previous; Left->ParentBracket = Contexts.back().ContextKind; d102 1 d114 3 a116 6 if (Left->is(TT_OverloadedOperatorLParen)) { Contexts.back().IsExpression = false; } else if (Left->Previous && (Left->Previous->isOneOf(tok::kw_static_assert, tok::kw_decltype, tok::kw_if, tok::kw_while, tok::l_paren, tok::comma) || d120 5 a129 3 } else if (Line.InPPDirective && (!Left->Previous || !Left->Previous->is(tok::identifier))) { Contexts.back().IsExpression = true; d135 1 a135 1 } else if (Left->Previous && Left->Previous->is(TT_ForEachMacro)) { a141 4 } else if (!Line.MustBeDeclaration && !Line.InPPDirective) { bool IsForOrCatch = Left->Previous && Left->Previous->isOneOf(tok::kw_for, tok::kw_catch); Contexts.back().IsExpression = !IsForOrCatch; d149 1 a149 2 bool MightBeFunctionType = CurrentToken->isOneOf(tok::star, tok::amp) && !Contexts[Contexts.size() - 2].IsExpression; a151 2 bool MightBeObjCForRangeLoop = Left->Previous && Left->Previous->is(tok::kw_for); d181 1 a181 1 Line.MustBeDeclaration))) a185 12 if (CurrentToken->Next && CurrentToken->Next->is(tok::l_brace) && Left->Previous && Left->Previous->is(tok::l_paren)) { // Detect the case where macros are used to generate lambdas or // function bodies, e.g.: // auto my_lambda = MARCO((Type *type, int i) { .. body .. }); for (FormatToken *Tok = Left; Tok != CurrentToken; Tok = Tok->Next) { if (Tok->is(TT_BinaryOperator) && Tok->isOneOf(tok::star, tok::amp, tok::ampamp)) Tok->Type = TT_PointerOrReference; } } d213 1 a213 2 if (CurrentToken->is(tok::l_brace)) a221 9 if (CurrentToken->isOneOf(tok::semi, tok::colon)) MightBeObjCForRangeLoop = false; if (MightBeObjCForRangeLoop && CurrentToken->is(Keywords.kw_in)) CurrentToken->Type = TT_ObjCForIn; // When we discover a 'new', we set CanBeExpression to 'false' in order to // parse the type correctly. Reset that after a comma. if (CurrentToken->is(tok::comma)) Contexts.back().CanBeExpression = true; d238 1 a238 1 // expression, or it could the start of an Objective-C array literal. a239 1 Left->ParentBracket = Contexts.back().ContextKind; a241 1 Style.Language == FormatStyle::LK_Cpp && d250 2 d254 7 a260 20 unsigned BindingIncrease = 1; if (Left->is(TT_Unknown)) { if (StartsObjCMethodExpr) { Left->Type = TT_ObjCMethodExpr; } else if (Style.Language == FormatStyle::LK_JavaScript && Parent && Contexts.back().ContextKind == tok::l_brace && Parent->isOneOf(tok::l_brace, tok::comma)) { Left->Type = TT_JsComputedPropertyName; } else if (Style.Language == FormatStyle::LK_Proto || (Parent && Parent->isOneOf(TT_BinaryOperator, tok::at, tok::comma, tok::l_paren, tok::l_square, tok::question, tok::colon, tok::kw_return, // Should only be relevant to JavaScript: tok::kw_default))) { Left->Type = TT_ArrayInitializerLSquare; } else { BindingIncrease = 10; Left->Type = TT_ArraySubscriptLSquare; } a262 4 ScopedContextCreator ContextCreator(*this, tok::l_square, BindingIncrease); Contexts.back().IsExpression = true; Contexts.back().ColonIsObjCMethodExpr = StartsObjCMethodExpr; d303 4 a306 2 if (CurrentToken->is(tok::comma) && Left->is(TT_ObjCMethodExpr) && !ColonFound) a318 1 Left->ParentBracket = Contexts.back().ContextKind; d341 1 a341 3 if (((CurrentToken->is(tok::colon) && (!Contexts.back().ColonIsDictLiteral || Style.Language != FormatStyle::LK_Cpp)) || d343 1 a343 1 Previous->Tok.getIdentifierInfo()) d345 1 a345 2 if (CurrentToken->is(tok::colon) || Style.Language == FormatStyle::LK_JavaScript) d356 4 a359 1 if (Current->is(tok::l_brace) && !Current->is(TT_DictLiteral)) d361 1 d411 4 a414 14 if (Style.Language == FormatStyle::LK_JavaScript) { if (Contexts.back().ColonIsForRangeExpr || // colon in for loop (Contexts.size() == 1 && // switch/case labels !Line.First->isOneOf(tok::kw_enum, tok::kw_case)) || Contexts.back().ContextKind == tok::l_paren || // function params Contexts.back().ContextKind == tok::l_square || // array type (Contexts.size() == 1 && Line.MustBeDeclaration)) { // method/property declaration Tok->Type = TT_JsTypeColon; break; } } if (Contexts.back().ColonIsDictLiteral || Style.Language == FormatStyle::LK_Proto) { d417 1 a417 1 Line.startsWith(TT_ObjCMethodSpecifier)) { d421 1 a421 1 Contexts.back().LongestObjCSelectorName) d423 1 d432 1 a432 4 if (Tok->Previous->is(tok::r_paren)) Tok->Type = TT_CtorInitializerColon; else Tok->Type = TT_InheritanceColon; a456 13 // When faced with 'operator()()', the kw_operator handler incorrectly // marks the first l_paren as a OverloadedOperatorLParen. Here, we make // the first two parens OverloadedOperators and the second l_paren an // OverloadedOperatorLParen. if (Tok->Previous && Tok->Previous->is(tok::r_paren) && Tok->Previous->MatchingParen && Tok->Previous->MatchingParen->is(TT_OverloadedOperatorLParen)) { Tok->Previous->Type = TT_OverloadedOperator; Tok->Previous->MatchingParen->Type = TT_OverloadedOperator; Tok->Type = TT_OverloadedOperatorLParen; } d460 1 a460 1 !Contexts.back().IsExpression && !Line.startsWith(TT_ObjCProperty) && d462 1 a462 2 !Tok->Previous->isOneOf(tok::kw_decltype, tok::kw___attribute, TT_LeadingJavaAnnotation))) d474 1 a474 2 if (!NonTemplateLess.count(Tok) && (!Tok->Previous || a480 1 NonTemplateLess.insert(Tok); d502 1 a502 2 if (CurrentToken && CurrentToken->Previous->isOneOf(TT_BinaryOperator, tok::comma)) a511 15 if (Style.Language == FormatStyle::LK_JavaScript && Tok->Next && Tok->Next->isOneOf(tok::semi, tok::comma, tok::colon, tok::r_paren, tok::r_brace)) { // Question marks before semicolons, colons, etc. indicate optional // types (fields, parameters), e.g. // function(x?: string, y?) {...} // class X { y?; } Tok->Type = TT_JsTypeOptionalQuestion; break; } // Declarations cannot be conditional expressions, this can only be part // of a type declaration. if (Line.MustBeDeclaration && Style.Language == FormatStyle::LK_JavaScript) break; d517 5 d523 2 a526 5 else if (Contexts.back().FirstStartOfName && (Contexts.size() == 1 || Line.startsWith(tok::kw_for))) { Contexts.back().FirstStartOfName->PartOfMultiVariableDeclStmt = true; Line.IsMultiVariableDeclStmt = true; } d560 1 a560 3 if (CurrentToken && CurrentToken->isOneOf(Keywords.kw_mark, Keywords.kw_option)) { bool IsMark = CurrentToken->is(Keywords.kw_mark); d564 1 a564 2 if (IsMark || CurrentToken->Previous->is(TT_BinaryOperator)) CurrentToken->Type = TT_ImplicitStringLiteral; a584 1 case tok::pp_include_next: d612 1 a612 2 NonTemplateLess.clear(); if (CurrentToken->is(tok::hash)) d614 1 a637 9 // In .proto files, top-level options are very similar to import statements // and should not be line-wrapped. if (Style.Language == FormatStyle::LK_Proto && Line.Level == 0 && CurrentToken->is(Keywords.kw_option)) { next(); if (CurrentToken && CurrentToken->is(tok::identifier)) return LT_ImportStatement; } d643 1 a643 1 if (isImportStatement(*CurrentToken)) d653 1 a653 1 if (Line.startsWith(TT_ObjCMethodSpecifier)) { d664 1 a664 1 bool isImportStatement(const FormatToken &Tok) { a669 1 Tok.Next->Next->TokenText == "provide" || d671 1 a671 1 Tok.Next->Next->TokenText == "setTestOnly") && d681 3 a683 4 if (!CurrentToken->isOneOf(TT_LambdaLSquare, TT_ForEachMacro, TT_FunctionLBrace, TT_ImplicitStringLiteral, TT_InlineASMBrace, TT_JsFatArrow, TT_LambdaArrow, TT_RegexLiteral)) a685 1 CurrentToken->MatchingParen = nullptr; d708 6 a713 1 IsExpression(IsExpression) {} d717 6 d724 5 a728 11 unsigned LongestObjCSelectorName = 0; bool ColonIsForRangeExpr = false; bool ColonIsDictLiteral = false; bool ColonIsObjCMethodExpr = false; FormatToken *FirstObjCSelectorName = nullptr; FormatToken *FirstStartOfName = nullptr; bool CanBeExpression = true; bool InTemplateArgument = false; bool InCtorInitializer = false; bool CaretFound = false; bool IsForEachMacro = false; d749 2 a750 1 !Line.First->isOneOf(tok::kw_template, tok::kw_using, tok::kw_return) && d753 6 a758 11 if (!Line.startsWith(TT_UnaryOperator)) { for (FormatToken *Previous = Current.Previous; Previous && Previous->Previous && !Previous->Previous->isOneOf(tok::comma, tok::semi); Previous = Previous->Previous) { if (Previous->isOneOf(tok::r_square, tok::r_paren)) { Previous = Previous->MatchingParen; if (!Previous) break; } if (Previous->opensScope()) a759 4 if (Previous->isOneOf(TT_BinaryOperator, TT_UnaryOperator) && Previous->isOneOf(tok::star, tok::amp, tok::ampamp) && Previous->Previous && Previous->Previous->isNot(tok::equal)) Previous->Type = TT_PointerOrReference; d761 4 a765 3 } else if (Current.is(tok::lessless) && (!Current.Previous || !Current.Previous->is(tok::kw_operator))) { Contexts.back().IsExpression = true; d770 11 a780 2 } else if (Current.is(TT_LambdaArrow) || Current.is(Keywords.kw_assert)) { Contexts.back().IsExpression = Style.Language == FormatStyle::LK_Java; d794 1 a794 1 } else if (Current.isOneOf(tok::semi, tok::exclaim)) { d814 1 a814 1 } else if (Current.isOneOf(tok::kw_auto, tok::kw___auto_type)) { d836 1 a836 8 if (Style.Language == FormatStyle::LK_JavaScript && Line.MustBeDeclaration) { // In JavaScript, `interface X { foo?(): bar; }` is an optional method // on the interface, not a ternary expression. Current.Type = TT_JsTypeOptionalQuestion; } else { Current.Type = TT_ConditionalExpr; } d841 1 a841 8 if (Current.TokenText.startswith("/*")) { if (Current.TokenText.endswith("*/")) Current.Type = TT_BlockComment; else // The lexer has for some reason determined a comment here. But we // cannot really handle it, if it isn't properly terminated. Current.Tok.setKind(tok::unknown); } else { d843 2 a844 1 } a847 9 if (Current.MatchingParen && Current.Next && !Current.Next->isBinaryOperator() && !Current.Next->isOneOf(tok::semi, tok::colon, tok::l_brace)) if (FormatToken *BeforeParen = Current.MatchingParen->Previous) if (BeforeParen->is(tok::identifier) && BeforeParen->TokenText == BeforeParen->TokenText.upper() && (!BeforeParen->Previous || BeforeParen->Previous->ClosesTemplateDeclaration)) Current.Type = TT_FunctionAnnotationRParen; d849 11 a859 15 if (Current.Next->isStringLiteral()) { Current.Type = TT_ObjCStringLiteral; } else { switch (Current.Next->Tok.getObjCKeywordID()) { case tok::objc_interface: case tok::objc_implementation: case tok::objc_protocol: Current.Type = TT_ObjCDecl; break; case tok::objc_property: Current.Type = TT_ObjCProperty; break; default: break; } d878 1 a878 3 } else if ((Style.Language == FormatStyle::LK_Java || Style.Language == FormatStyle::LK_JavaScript) && Current.Previous) { d904 2 a905 2 if (Tok.Previous->isOneOf(TT_LeadingJavaAnnotation, Keywords.kw_instanceof)) return false; d930 1 a930 2 return (!IsPPKeyword && PreviousNotConst->isOneOf(tok::identifier, tok::kw_auto)) || d937 9 a945 7 // C-style casts are only used in C++ and Java. if (Style.Language != FormatStyle::LK_Cpp && Style.Language != FormatStyle::LK_Java) return false; // Empty parens aren't casts and there are no casts at the end of the line. if (Tok.Previous == Tok.MatchingParen || !Tok.Next || !Tok.MatchingParen) d947 2 a948 17 FormatToken *LeftOfParens = Tok.MatchingParen->getPreviousNonComment(); if (LeftOfParens) { // If there is an opening parenthesis left of the current parentheses, // look past it as these might be chained casts. if (LeftOfParens->is(tok::r_paren)) { if (!LeftOfParens->MatchingParen || !LeftOfParens->MatchingParen->Previous) return false; LeftOfParens = LeftOfParens->MatchingParen->Previous; } // If there is an identifier (or with a few exceptions a keyword) right // before the parentheses, this is unlikely to be a cast. if (LeftOfParens->Tok.getIdentifierInfo() && !LeftOfParens->isOneOf(Keywords.kw_in, tok::kw_return, tok::kw_case, tok::kw_delete)) d950 2 a951 5 // Certain other tokens right before the parentheses are also signals that // this cannot be a cast. if (LeftOfParens->isOneOf(tok::at, tok::r_square, TT_OverloadedOperator, TT_TemplateCloser)) d953 2 d956 2 a957 16 if (Tok.Next->is(tok::question)) return false; // As Java has no function types, a "(" after the ")" likely means that this // is a cast. if (Style.Language == FormatStyle::LK_Java && Tok.Next->is(tok::l_paren)) return true; // If a (non-string) literal follows, this is likely a cast. if (Tok.Next->isNot(tok::string_literal) && (Tok.Next->Tok.isLiteral() || Tok.Next->isOneOf(tok::kw_sizeof, tok::kw_alignof))) return true; // Heuristically try to determine whether the parentheses contain a type. d963 33 a995 3 Tok.Next->isOneOf(tok::equal, tok::semi, tok::l_brace, tok::greater); if (ParensAreType && !ParensCouldEndDecl) return true; d997 7 a1003 27 // At this point, we heuristically assume that there are no casts at the // start of the line. We assume that we have found most cases where there // are by the logic above, e.g. "(void)x;". if (!LeftOfParens) return false; // If the following token is an identifier, this is a cast. All cases where // this can be something else are handled above. if (Tok.Next->is(tok::identifier)) return true; if (!Tok.Next->Next) return false; // If the next token after the parenthesis is a unary operator, assume // that this is cast, unless there are unexpected tokens inside the // parenthesis. bool NextIsUnary = Tok.Next->isUnaryOperator() || Tok.Next->isOneOf(tok::amp, tok::star); if (!NextIsUnary || Tok.Next->is(tok::plus) || !Tok.Next->Next->isOneOf(tok::identifier, tok::numeric_constant)) return false; // Search for unexpected tokens. for (FormatToken *Prev = Tok.Previous; Prev != Tok.MatchingParen; Prev = Prev->Previous) { if (!Prev->isOneOf(tok::kw_const, tok::identifier, tok::coloncolon)) return false; d1005 1 a1005 1 return true; a1019 2 NextToken->isOneOf(tok::arrow, Keywords.kw_final, Keywords.kw_override) || d1021 1 a1021 1 return TT_PointerOrReference; d1035 1 a1035 3 if (NextToken->is(tok::kw_operator) && !IsExpression) return TT_PointerOrReference; if (NextToken->isOneOf(tok::comma, tok::semi)) a1110 6 // Set of "<" tokens that do not open a template parameter list. If parseAngle // determines that a specific token can't be a template opener, it will make // same decision irrespective of the decisions for tokens leading up to it. // Store this information to prevent this from causing exponential runtime. llvm::SmallPtrSet NonTemplateLess; d1113 2 a1114 2 static const int PrecedenceUnaryOperator = prec::PointerToMember + 1; static const int PrecedenceArrowAndPeriod = prec::PointerToMember + 2; a1184 2 if (LatestOperator) LatestOperator->NextOperator = Current; d1194 1 a1194 1 // LatestOperator->LastOperator = true; d1212 2 a1213 2 if (NextNonComment && NextNonComment->is(tok::colon) && NextNonComment->is(TT_DictLiteral)) d1215 1 a1215 1 if (Current->is(TT_LambdaArrow)) d1217 4 a1220 6 if (Current->is(TT_JsFatArrow)) return prec::Assignment; if (Current->isOneOf(tok::semi, TT_InlineASMColon, TT_SelectorName, TT_JsComputedPropertyName) || (Current->is(tok::comment) && NextNonComment && NextNonComment->is(TT_SelectorName))) d1222 1 a1222 1 if (Current->is(TT_RangeBasedForLoopColon)) d1224 1 a1224 5 if ((Style.Language == FormatStyle::LK_Java || Style.Language == FormatStyle::LK_JavaScript) && Current->is(Keywords.kw_instanceof)) return prec::Relational; if (Current->is(TT_BinaryOperator) || Current->is(tok::comma)) d1226 1 a1226 1 if (Current->isOneOf(tok::period, tok::arrow)) d1228 3 a1230 3 if (Style.Language == FormatStyle::LK_Java && Current->isOneOf(Keywords.kw_extends, Keywords.kw_implements, Keywords.kw_throws)) d1329 1 a1329 1 if (Line.startsWith(TT_ObjCMethodSpecifier)) d1331 1 a1331 1 else if (Line.startsWith(TT_ObjCDecl)) d1333 1 a1333 1 else if (Line.startsWith(TT_ObjCProperty)) d1343 11 a1353 14 auto skipOperatorName = [](const FormatToken* Next) -> const FormatToken* { for (; Next; Next = Next->Next) { if (Next->is(TT_OverloadedOperatorLParen)) return Next; if (Next->is(TT_OverloadedOperator)) continue; if (Next->isOneOf(tok::kw_new, tok::kw_delete)) { // For 'new[]' and 'delete[]'. if (Next->Next && Next->Next->is(tok::l_square) && Next->Next->Next && Next->Next->Next->is(tok::r_square)) Next = Next->Next->Next; continue; } d1355 1 a1355 11 } return nullptr; }; const FormatToken *Next = Current.Next; if (Current.is(tok::kw_operator)) { if (Current.Previous && Current.Previous->is(tok::coloncolon)) return false; Next = skipOperatorName(Next); } else { if (!Current.is(TT_StartOfName) || Current.NestingLevel != 0) a1356 18 for (; Next; Next = Next->Next) { if (Next->is(TT_TemplateOpener)) { Next = Next->MatchingParen; } else if (Next->is(tok::coloncolon)) { Next = Next->Next; if (!Next) return false; if (Next->is(tok::kw_operator)) { Next = skipOperatorName(Next->Next); break; } if (!Next->is(tok::identifier)) return false; } else if (Next->is(tok::l_paren)) { break; } else { return false; } d1359 1 a1359 2 if (!Next || !Next->is(tok::l_paren)) d1361 1 d1364 1 a1364 1 for (const FormatToken *Tok = Next->Next; Tok && Tok != Next->MatchingParen; d1369 1 a1369 2 if (Tok->isOneOf(tok::l_brace, tok::string_literal, TT_ObjCMethodExpr) || Tok->Tok.isLiteral()) a1374 23 bool TokenAnnotator::mustBreakForReturnType(const AnnotatedLine &Line) const { assert(Line.MightBeFunctionDecl); if ((Style.AlwaysBreakAfterReturnType == FormatStyle::RTBS_TopLevel || Style.AlwaysBreakAfterReturnType == FormatStyle::RTBS_TopLevelDefinitions) && Line.Level > 0) return false; switch (Style.AlwaysBreakAfterReturnType) { case FormatStyle::RTBS_None: return false; case FormatStyle::RTBS_All: case FormatStyle::RTBS_TopLevel: return true; case FormatStyle::RTBS_AllDefinitions: case FormatStyle::RTBS_TopLevelDefinitions: return Line.mightBeFunctionDefinition(); } return false; } d1426 6 a1431 3 if (!Current->MustBreakBefore && InFunctionDecl && Current->is(TT_FunctionDeclarationName)) Current->MustBreakBefore = mustBreakForReturnType(Line); d1505 1 a1505 1 if (Right.is(Keywords.kw_function) && Left.isNot(tok::comma)) a1506 2 if (Left.is(TT_JsTypeColon)) return 35; d1515 1 a1515 7 if (Left.is(tok::r_square)) return 25; // Slightly prefer formatting local lambda definitions like functions. if (Right.is(TT_LambdaLSquare) && Left.is(tok::equal)) return 35; if (!Right.isOneOf(TT_ObjCMethodExpr, TT_LambdaLSquare, TT_ArrayInitializerLSquare)) d1521 1 a1521 1 if (Line.startsWith(tok::kw_for) && Right.PartOfMultiVariableDeclStmt) d1524 1 a1524 1 return 110; a1528 4 if (Right.is(TT_PointerOrReference)) return 190; if (Right.is(TT_LambdaArrow)) return 110; d1543 4 a1546 22 // Breaking before the "./->" of a chained call/member access is reasonably // cheap, as formatting those with one call per line is generally // desirable. In particular, it should be cheaper to break before the call // than it is to break inside a call's parameters, which could lead to weird // "hanging" indents. The exception is the very last "./->" to support this // frequent pattern: // // aaaaaaaa.aaaaaaaa.bbbbbbb().ccccccccccccccccccccc( // dddddddd); // // which might otherwise be blown up onto many lines. Here, clang-format // won't produce "hanging" indents anyway as there is no other trailing // call. // // Also apply higher penalty is not a call as that might lead to a wrapping // like: // // aaaaaaa // .aaaaaaaaa.bbbbbbbb(cccccccc); return !Right.NextOperator || !Right.NextOperator->Previous->closesScope() ? 150 : 35; d1553 2 a1554 1 if (Line.startsWith(TT_ObjCMethodSpecifier)) d1566 1 a1566 1 if (Line.startsWith(tok::kw_for) && Left.is(tok::equal)) d1576 1 a1576 2 if (Left.is(tok::l_paren) && InFunctionDecl && Style.AlignAfterOpenBracket != FormatStyle::BAS_DontAlign) a1577 3 if (Left.is(tok::l_paren) && Left.Previous && Left.Previous->isOneOf(tok::kw_if, tok::kw_for)) return 1000; d1585 1 a1585 1 if (Style.AlignAfterOpenBracket == FormatStyle::BAS_DontAlign) d1594 1 a1594 2 if (Left.is(tok::string_literal) && (Right.NextOperator || Right.OperatorIndex != 1)) { d1610 1 a1610 3 if (Level != prec::Unknown) return Level; Level = Right.getPrecedence(); d1639 1 a1639 1 (Left.is(tok::kw_template) || a1648 2 if (Left.is(tok::colon)) return !Left.is(TT_ObjCMethodExpr); d1658 3 a1660 8 return (Left.is(tok::r_paren) && Left.MatchingParen && (Left.MatchingParen->is(TT_OverloadedOperatorLParen) || (Left.MatchingParen->Previous && Left.MatchingParen->Previous->is(TT_FunctionDeclarationName)))) || (Left.Tok.isLiteral() || (!Left.isOneOf(TT_PointerOrReference, tok::l_paren) && (Style.PointerAlignment != FormatStyle::PAS_Left || Line.IsMultiVariableDeclStmt))); d1663 1 a1663 2 (Style.PointerAlignment != FormatStyle::PAS_Right && !Line.IsMultiVariableDeclStmt))) d1666 3 a1668 9 return Right.Tok.isLiteral() || Right.isOneOf(TT_BlockComment, Keywords.kw_final, Keywords.kw_override) || (Right.is(tok::l_brace) && Right.BlockKind == BK_Block) || (!Right.isOneOf(TT_PointerOrReference, TT_ArraySubscriptLSquare, tok::l_paren) && (Style.PointerAlignment != FormatStyle::PAS_Right && !Line.IsMultiVariableDeclStmt) && Left.Previous && d1687 2 d1702 6 a1707 6 (Left.isOneOf(tok::kw_if, tok::pp_elif, tok::kw_for, tok::kw_while, tok::kw_switch, tok::kw_case, TT_ForEachMacro, TT_ObjCForIn) || (Left.isOneOf(tok::kw_try, Keywords.kw___except, tok::kw_catch, tok::kw_new, tok::kw_delete) && (!Left.Previous || Left.Previous->isNot(tok::period))))) || d1709 1 a1709 2 (Left.is(tok::identifier) || Left.isFunctionLikeKeyword() || Left.is(tok::r_paren)) && d1740 1 a1740 6 if (Right.Tok.getIdentifierInfo() && Left.Tok.getIdentifierInfo()) return true; // Never ever merge two identifiers. if (Style.Language == FormatStyle::LK_Cpp) { if (Left.is(tok::kw_operator)) return Right.is(tok::coloncolon); } else if (Style.Language == FormatStyle::LK_Proto) { d1743 1 a1743 1 Keywords.kw_repeated, Keywords.kw_extend)) d1749 1 a1749 5 if (Left.isOneOf(Keywords.kw_let, Keywords.kw_var, TT_JsFatArrow, Keywords.kw_in)) return true; if (Left.is(tok::kw_default) && Left.Previous && Left.Previous->is(tok::kw_export)) a1750 16 if (Left.is(Keywords.kw_is) && Right.is(tok::l_brace)) return true; if (Right.isOneOf(TT_JsTypeColon, TT_JsTypeOptionalQuestion)) return false; if ((Left.is(tok::l_brace) || Right.is(tok::r_brace)) && Line.First->isOneOf(Keywords.kw_import, tok::kw_export)) return false; if (Left.is(tok::ellipsis)) return false; if (Left.is(TT_TemplateCloser) && !Right.isOneOf(tok::equal, tok::l_brace, tok::comma, tok::l_square, Keywords.kw_implements, Keywords.kw_extends)) // Type assertions ('expr') are not followed by whitespace. Other // locations that should have whitespace following are identified by the // above set of follower tokens. return false; d1754 2 d1765 2 d1780 1 a1780 2 if (Right.isOneOf(TT_TrailingReturnArrow, TT_LambdaArrow) || Left.isOneOf(TT_TrailingReturnArrow, TT_LambdaArrow)) a1781 2 if (Right.is(TT_OverloadedOperatorLParen)) return Style.SpaceBeforeParens == FormatStyle::SBPO_Always; d1788 10 a1797 14 if (Right.is(tok::colon)) { if (Line.First->isOneOf(tok::kw_case, tok::kw_default) || !Right.getNextNonComment() || Right.getNextNonComment()->is(tok::semi)) return false; if (Right.is(TT_ObjCMethodExpr)) return false; if (Left.is(tok::question)) return false; if (Right.is(TT_InlineASMColon) && Left.is(tok::coloncolon)) return false; if (Right.is(TT_DictLiteral)) return Style.SpacesInContainerLiterals; return true; } a1799 3 // If the next token is a binary operator or a selector name, we have // incorrectly classified the parenthesis as a cast. FIXME: Detect correctly. d1801 2 a1802 4 return Style.SpaceAfterCStyleCast || Right.isOneOf(TT_BinaryOperator, TT_SelectorName); if (Left.is(tok::greater) && Right.is(tok::greater)) d1805 1 d1820 1 a1820 2 (Left.isOneOf(TT_BinaryOperator, TT_ConditionalExpr) && !Right.is(tok::r_paren))) d1822 1 a1822 2 if (Left.is(TT_TemplateCloser) && Right.is(tok::l_paren) && Right.isNot(TT_FunctionTypeLParen)) d1828 1 a1828 1 Line.startsWith(tok::hash)) d1846 1 a1846 1 if (Right.NewlinesBefore > 1 && Style.MaxEmptyLinesToKeep > 0) a1848 35 if (Style.Language == FormatStyle::LK_JavaScript) { // FIXME: This might apply to other languages and token kinds. if (Right.is(tok::char_constant) && Left.is(tok::plus) && Left.Previous && Left.Previous->is(tok::char_constant)) return true; if (Left.is(TT_DictLiteral) && Left.is(tok::l_brace) && Line.Level == 0 && Left.Previous && Left.Previous->is(tok::equal) && Line.First->isOneOf(tok::identifier, Keywords.kw_import, tok::kw_export, tok::kw_const) && // kw_var/kw_let are pseudo-tokens that are tok::identifier, so match // above. !Line.First->isOneOf(Keywords.kw_var, Keywords.kw_let)) // Object literals on the top level of a file are treated as "enum-style". // Each key/value pair is put on a separate line, instead of bin-packing. return true; if (Left.is(tok::l_brace) && Line.Level == 0 && (Line.startsWith(tok::kw_enum) || Line.startsWith(tok::kw_export, tok::kw_enum))) // JavaScript top-level enum key/value pairs are put on separate lines // instead of bin-packing. return true; if (Right.is(tok::r_brace) && Left.is(tok::l_brace) && !Left.Children.empty()) // Support AllowShortFunctionsOnASingleLine for JavaScript. return Style.AllowShortFunctionsOnASingleLine == FormatStyle::SFS_None || Style.AllowShortFunctionsOnASingleLine == FormatStyle::SFS_Empty || (Left.NestingLevel == 0 && Line.Level == 0 && Style.AllowShortFunctionsOnASingleLine == FormatStyle::SFS_Inline); } else if (Style.Language == FormatStyle::LK_Java) { if (Right.is(tok::plus) && Left.is(tok::string_literal) && Right.Next && Right.Next->is(tok::string_literal)) return true; } d1853 1 a1853 2 if (Left.isOneOf(tok::l_brace, TT_ArrayInitializerLSquare) && Left.BlockKind != BK_Block && Left.MatchingParen) d1855 1 a1855 3 else if (Right.MatchingParen && Right.MatchingParen->isOneOf(tok::l_brace, TT_ArrayInitializerLSquare)) d1865 2 a1866 4 if (Left.isTrailingComment()) return true; if (Left.isStringLiteral() && (Right.isStringLiteral() || Right.is(TT_ObjCStringLiteral))) d1892 6 a1897 2 if (Right.is(TT_InlineASMBrace)) return Right.HasUnescapedNewline; d1899 2 a1900 3 return (Line.startsWith(tok::kw_enum) && Style.BraceWrapping.AfterEnum) || (Line.startsWith(tok::kw_class) && Style.BraceWrapping.AfterClass) || (Line.startsWith(tok::kw_struct) && Style.BraceWrapping.AfterStruct); d1906 3 d1910 17 a1926 6 if ((Style.Language == FormatStyle::LK_Java || Style.Language == FormatStyle::LK_JavaScript) && Left.is(TT_LeadingJavaAnnotation) && Right.isNot(TT_LeadingJavaAnnotation) && Right.isNot(tok::l_paren) && (Line.Last->is(tok::l_brace) || Style.BreakAfterJavaFieldAnnotations)) return true; a1934 1 // Language-specific stuff. a1941 7 } else if (Style.Language == FormatStyle::LK_JavaScript) { if (Left.is(TT_JsFatArrow) && Right.is(tok::l_brace)) return false; if (Left.is(TT_JsTypeColon)) return true; if (Right.NestingLevel == 0 && Right.is(Keywords.kw_is)) return false; a1949 4 if (Right.is(TT_PointerOrReference)) return Line.IsMultiVariableDeclStmt || (Style.PointerAlignment == FormatStyle::PAS_Right && (!Right.Next || Right.Next->isNot(TT_FunctionDeclarationName))); a1952 2 if (Left.is(TT_PointerOrReference)) return false; d1973 2 a1974 3 if (Right.is(TT_SelectorName) || (Right.is(tok::identifier) && Right.Next && Right.Next->is(TT_ObjCMethodExpr))) return Left.isNot(tok::period); // FIXME: Properly parse ObjC calls. d1977 1 a1977 1 if (Left.ClosesTemplateDeclaration || Left.is(TT_FunctionAnnotationRParen)) d1986 2 a1987 1 if (Left.isOneOf(TT_TemplateCloser, TT_UnaryOperator) || d1990 1 a1990 2 if (Left.is(tok::equal) && !Right.isOneOf(tok::kw_default, tok::kw_delete) && Line.Type == LT_VirtualFunctionDecl && Left.NestingLevel == 0) d1995 2 a1996 1 (Left.Previous->isOneOf(TT_BinaryOperator, TT_CastRParen))) a2002 3 if (Right.is(tok::r_square) && Right.MatchingParen && Right.MatchingParen->is(TT_LambdaLSquare)) return false; d2030 2 a2031 2 if ((Left.is(tok::greater) && Right.is(tok::greater)) || (Left.is(tok::less) && Right.is(tok::less))) d2042 1 a2042 2 if ((Left.isBinaryOperator() || Left.is(TT_BinaryOperator)) && !Left.isOneOf(tok::arrowstar, tok::lessless) && d2049 2 a2050 3 Right.isMemberAccess() || Right.isOneOf(TT_TrailingReturnArrow, TT_LambdaArrow, tok::lessless, tok::colon, tok::l_square, tok::at) || d2061 1 a2061 2 << " C=" << Tok->CanBreakBefore << " T=" << getTokenTypeName(Tok->Type) @ 1.1.1.9.2.1 log @Sync with HEAD @ text @d45 1 a45 3 if (!CurrentToken || !CurrentToken->Previous) return false; if (NonTemplateLess.count(CurrentToken->Previous)) a46 11 const FormatToken& Previous = *CurrentToken->Previous; if (Previous.Previous) { if (Previous.Previous->Tok.isLiteral()) return false; if (Previous.Previous->is(tok::r_paren) && Contexts.size() > 1 && (!Previous.Previous->MatchingParen || !Previous.Previous->MatchingParen->is(TT_OverloadedOperatorLParen))) return false; } d49 1 a49 1 ScopedContextCreator ContextCreator(*this, tok::less, 12); a123 4 } else if (Style.Language == FormatStyle::LK_JavaScript && Line.startsWith(Keywords.kw_type, tok::identifier)) { // type X = (...); Contexts.back().IsExpression = false; a130 10 } else if (Style.Language == FormatStyle::LK_JavaScript && Left->Previous && (Left->Previous->is(Keywords.kw_function) || (Left->Previous->endsSequence(tok::identifier, Keywords.kw_function)))) { // function(...) or function f(...) Contexts.back().IsExpression = false; } else if (Style.Language == FormatStyle::LK_JavaScript && Left->Previous && Left->Previous->is(TT_JsTypeColon)) { // let x: (SomeType); Contexts.back().IsExpression = false; d162 2 a163 2 bool MightBeFunctionType = !Contexts[Contexts.size() - 2].IsExpression; bool ProbablyFunctionType = CurrentToken->isOneOf(tok::star, tok::amp); d190 1 a190 3 ProbablyFunctionType = true; if (CurrentToken->is(tok::comma)) MightBeFunctionType = false; d194 1 a194 1 if (MightBeFunctionType && ProbablyFunctionType && CurrentToken->Next && d196 2 a197 1 (CurrentToken->Next->is(tok::l_square) && Line.MustBeDeclaration))) d248 2 a249 3 if ((CurrentToken->Previous->isOneOf(tok::kw_const, tok::kw_auto) || CurrentToken->Previous->isSimpleTypeSpecifier()) && !CurrentToken->is(tok::l_brace)) a279 10 // Cases where '>' is followed by '['. // In C++, this can happen either in array of templates (foo[10]) // or when array is a nested template type (unique_ptr[]>). bool CppArrayTemplates = Style.Language == FormatStyle::LK_Cpp && Parent && Parent->is(TT_TemplateCloser) && (Contexts.back().CanBeExpression || Contexts.back().IsExpression || Contexts.back().InTemplateArgument); d281 1 a281 2 !CppArrayTemplates && (Style.Language == FormatStyle::LK_Cpp || Style.Language == FormatStyle::LK_ObjC) && d301 4 a304 4 (!CppArrayTemplates && Parent && Parent->isOneOf(TT_BinaryOperator, TT_TemplateCloser, tok::at, tok::comma, tok::l_paren, tok::l_square, tok::question, tok::colon, tok::kw_return, d397 1 a397 2 (Style.Language != FormatStyle::LK_Cpp && Style.Language != FormatStyle::LK_ObjC))) || d399 1 a399 2 (Previous->Tok.getIdentifierInfo() || Previous->is(tok::string_literal))) a404 3 if (CurrentToken->is(tok::comma) && Style.Language == FormatStyle::LK_JavaScript) Left->Type = TT_DictLiteral; d413 1 a413 1 if (Current->is(tok::l_brace) && Current->BlockKind == BK_Block) d482 6 a487 15 const FormatToken *BeforePrevious = Tok->Previous->Previous; if (!BeforePrevious || !(BeforePrevious->is(TT_CastRParen) || (BeforePrevious->is(TT_ObjCMethodExpr) && BeforePrevious->is(tok::colon))) || BeforePrevious->is(tok::r_square) || Contexts.back().LongestObjCSelectorName == 0) { Tok->Previous->Type = TT_SelectorName; if (Tok->Previous->ColumnWidth > Contexts.back().LongestObjCSelectorName) Contexts.back().LongestObjCSelectorName = Tok->Previous->ColumnWidth; if (!Contexts.back().FirstObjCSelectorName) Contexts.back().FirstObjCSelectorName = Tok->Previous; } d494 1 a494 2 if (Tok->getPreviousNonComment()->isOneOf(tok::r_paren, tok::kw_noexcept)) a506 8 case tok::pipe: case tok::amp: // | and & in declarations/type expressions represent union and // intersection types, respectively. if (Style.Language == FormatStyle::LK_JavaScript && !Contexts.back().IsExpression) Tok->Type = TT_JsTypeOperator; break; a515 3 if (Style.Language == FormatStyle::LK_JavaScript && Tok->Previous && Tok->Previous->is(tok::period)) break; d553 5 a557 1 if (parseAngle()) { d606 1 a606 1 if (Line.MustBeDeclaration && !Contexts.back().IsExpression && a668 1 bool IsFirstToken = CurrentToken->IsFirst; a672 13 if (Style.Language == FormatStyle::LK_JavaScript && IsFirstToken) { // JavaScript files can contain shebang lines of the form: // #!/usr/bin/env node // Treat these like C++ #include directives. while (CurrentToken) { // Tokens cannot be comments here. CurrentToken->Type = TT_ImplicitStringLiteral; next(); } return LT_ImportStatement; } a747 6 // import {...} from '...'; if (Style.Language == FormatStyle::LK_JavaScript && CurrentToken->is(Keywords.kw_import)) ImportStatement = true; d751 2 a752 14 if (Style.Language == FormatStyle::LK_JavaScript) { // export {...} from '...'; // An export followed by "from 'some string';" is a re-export from // another module identified by a URI and is treated as a // LT_ImportStatement (i.e. prevent wraps on it for long URIs). // Just "export {...};" or "export class ..." should not be treated as // an import in this sense. if (Line.First->is(tok::kw_export) && CurrentToken->is(Keywords.kw_from) && CurrentToken->Next && CurrentToken->Next->isStringLiteral()) ImportStatement = true; if (isClosureImportStatement(*CurrentToken)) ImportStatement = true; } d772 1 a772 1 bool isClosureImportStatement(const FormatToken &Tok) { d775 2 a776 1 return Tok.TokenText == "goog" && Tok.Next && Tok.Next->is(tok::period) && d780 1 a780 2 Tok.Next->Next->TokenText == "setTestOnly" || Tok.Next->Next->TokenText == "forwardDeclare") && d793 1 a793 2 TT_OverloadedOperator, TT_RegexLiteral, TT_TemplateString)) a855 3 // Type aliases use `type X = ...;` in TypeScript. !(Style.Language == FormatStyle::LK_JavaScript && Line.startsWith(Keywords.kw_type, tok::identifier)) && a884 4 } else if (Current.Previous && Current.Previous->is(TT_CtorInitializerColon)) { Contexts.back().IsExpression = true; Contexts.back().InCtorInitializer = true; d890 6 a895 2 if (Line.MustBeDeclaration && !Contexts.front().InCtorInitializer) Contexts.back().IsExpression = false; d941 1 a941 1 Line.MustBeDeclaration && !Contexts.back().IsExpression) { d967 7 a973 13 !Current.Next->isOneOf(tok::semi, tok::colon, tok::l_brace, tok::period, tok::arrow, tok::coloncolon)) if (FormatToken *AfterParen = Current.MatchingParen->Next) { // Make sure this isn't the return type of an Obj-C block declaration if (AfterParen->Tok.isNot(tok::caret)) { if (FormatToken *BeforeParen = Current.MatchingParen->Previous) if (BeforeParen->is(tok::identifier) && BeforeParen->TokenText == BeforeParen->TokenText.upper() && (!BeforeParen->Previous || BeforeParen->Previous->ClosesTemplateDeclaration)) Current.Type = TT_FunctionAnnotationRParen; } } a1037 3 if (Style.Language == FormatStyle::LK_JavaScript && Tok.Previous->is(Keywords.kw_in)) return false; a1071 1 Style.Language != FormatStyle::LK_ObjC && d1081 1 a1081 1 // If there is a closing parenthesis left of the current parentheses, d1100 1 a1100 1 TT_TemplateCloser, tok::ellipsis)) d1134 3 a1136 10 // Certain token types inside the parentheses mean that this can't be a // cast. for (const FormatToken *Token = Tok.MatchingParen->Next; Token != &Tok; Token = Token->Next) if (Token->is(TT_BinaryOperator)) return false; // If the following token is an identifier or 'this', this is a cast. All // cases where this can be something else are handled above. if (Tok.Next->isOneOf(tok::identifier, tok::kw_this)) d1170 3 a1172 1 if (!NextToken || NextToken->isOneOf(tok::arrow, tok::equal) || d1231 1 a1231 7 if (!PrevToken) return TT_UnaryOperator; if (PrevToken->isOneOf(TT_CastRParen, TT_UnaryOperator) && !PrevToken->is(tok::exclaim)) // There aren't any trailing unary operators except for TypeScript's // non-null operator (!). Thus, this must be squence of leading operators. a1392 3 if (Style.Language == FormatStyle::LK_JavaScript && Current->is(Keywords.kw_in)) return prec::Relational; d1397 1 a1397 2 if ((Style.Language == FormatStyle::LK_Java || Style.Language == FormatStyle::LK_JavaScript) && a1483 7 static unsigned maxNestingDepth(const AnnotatedLine &Line) { unsigned Result = 0; for (const auto* Tok = Line.First; Tok != nullptr; Tok = Tok->Next) Result = std::max(Result, Tok->NestingLevel); return Result; } a1491 8 // With very deep nesting, ExpressionParser uses lots of stack and the // formatting algorithm is very slow. We're not going to do a good job here // anyway - it's probably generated code being formatted by mistake. // Just skip the whole line. if (maxNestingDepth(Line) > 50) Line.Type = LT_Invalid; d1511 1 a1511 2 static bool isFunctionDeclarationName(const FormatToken &Current, const AnnotatedLine &Line) { a1530 1 // Find parentheses of parameter list. d1560 1 a1560 2 // Check whether parameter list can be long to a function declaration. if (!Next || !Next->is(tok::l_paren) || !Next->MatchingParen) a1561 3 // If the lines ends with "{", this is likely an function definition. if (Line.Last->is(tok::l_brace)) return true; a1562 4 return true; // Empty parentheses. // If there is an &/&& after the r_paren, this is likely a function. if (Next->MatchingParen->Next && Next->MatchingParen->Next->is(TT_PointerOrReference)) d1567 1 a1567 1 Tok->isOneOf(TT_PointerOrReference, TT_StartOfName, tok::ellipsis)) d1613 1 a1613 1 if (isFunctionDeclarationName(*Current, Line)) a1729 3 if ((Left.is(TT_TemplateString) && Left.TokenText.endswith("${")) || (Right.is(TT_TemplateString) && Right.TokenText.startswith("}"))) return 100; d1732 2 a1733 1 if (Right.is(tok::identifier) && Right.Next && Right.Next->is(TT_DictLiteral)) d1739 1 a1739 1 return 200; a1770 2 if (Left.is(tok::comment)) return 1000; a1846 12 if (Left.isOneOf(tok::plus, tok::comma) && Left.Previous && Left.Previous->isLabelString() && (Left.NextOperator || Left.OperatorIndex != 0)) return 45; if (Right.is(tok::plus) && Left.isLabelString() && (Right.NextOperator || Right.OperatorIndex != 0)) return 25; if (Left.is(tok::comma)) return 1; if (Right.is(tok::lessless) && Left.isLabelString() && (Right.NextOperator || Right.OperatorIndex != 1)) return 25; d1848 13 a1860 5 // Breaking at a << is really cheap. if (!Left.is(tok::r_paren) || Right.OperatorIndex > 0) // Slightly prefer to break before the first one in log-like statements. return 2; return 1; d1896 2 a1897 1 Line.Type == LT_ObjCDecl && Style.ObjCSpaceBeforeProtocolList) a1898 2 if (Right.is(tok::less) && Left.is(tok::kw_template)) return Style.SpaceAfterTemplateKeyword; d1913 1 a1913 2 return Left.Tok.isLiteral() || (Left.is(tok::identifier) && Left.Previous && Left.Previous->is(tok::kw_case)); d1917 5 a1921 3 return (Left.is(tok::r_paren) && Line.MightBeFunctionDecl) || (Left.Tok.isLiteral() || (Left.is(tok::kw_const) && Left.Previous && Left.Previous->is(tok::r_paren)) || d1924 1 a1924 3 (Line.IsMultiVariableDeclStmt && (Left.NestingLevel == 0 || (Left.NestingLevel == 1 && Line.First->is(tok::kw_for))))))); d1931 3 a1933 3 return Right.Tok.isLiteral() || Right.is(TT_BlockComment) || (Right.isOneOf(Keywords.kw_override, Keywords.kw_final) && !Right.is(TT_StartOfName)) || d2024 2 a2025 26 if (Left.is(TT_JsFatArrow)) return true; if ((Left.is(TT_TemplateString) && Left.TokenText.endswith("${")) || (Right.is(TT_TemplateString) && Right.TokenText.startswith("}"))) return false; if (Left.is(tok::identifier) && Right.is(TT_TemplateString)) return false; if (Right.is(tok::star) && Left.isOneOf(Keywords.kw_function, Keywords.kw_yield)) return false; if (Right.isOneOf(tok::l_brace, tok::l_square) && Left.isOneOf(Keywords.kw_function, Keywords.kw_yield)) return true; // JS methods can use some keywords as names (e.g. `delete()`). if (Right.is(tok::l_paren) && Line.MustBeDeclaration && Left.Tok.getIdentifierInfo()) return false; if (Left.isOneOf(Keywords.kw_let, Keywords.kw_var, Keywords.kw_in, Keywords.kw_of, tok::kw_const) && (!Left.Previous || !Left.Previous->is(tok::period))) return true; if (Left.isOneOf(tok::kw_for, Keywords.kw_as) && Left.Previous && Left.Previous->is(tok::period) && Right.is(tok::l_paren)) return false; if (Left.is(Keywords.kw_as) && Right.isOneOf(tok::l_square, tok::l_brace, tok::l_paren)) a2033 2 if (Left.is(TT_JsTypeOperator) || Right.is(TT_JsTypeOperator)) return false; a2045 7 // Postfix non-null assertion operator, as in `foo!.bar()`. if (Right.is(tok::exclaim) && (Left.isOneOf(tok::identifier, tok::r_paren, tok::r_square, tok::r_brace) || Left.Tok.isLiteral())) return false; if (Left.is(tok::exclaim) && Right.is(Keywords.kw_as)) return true; // "x! as string" d2114 1 a2114 1 if (Right.is(tok::coloncolon) && !Left.isOneOf(tok::l_brace, tok::comment)) d2117 1 a2117 2 !(Left.isOneOf(tok::identifier, tok::l_paren, tok::r_paren, tok::l_square) || d2155 2 a2156 2 if (Right.is(tok::string_literal) && Left.is(tok::plus) && Left.Previous && Left.Previous->is(tok::string_literal)) d2242 3 a2270 7 const FormatToken *NonComment = Right.getPreviousNonComment(); if (Left.isOneOf(tok::kw_return, tok::kw_continue, tok::kw_break, tok::kw_throw) || (NonComment && NonComment->isOneOf(tok::kw_return, tok::kw_continue, tok::kw_break, tok::kw_throw))) return false; // Otherwise a semicolon is inserted. a2276 18 if (Left.is(Keywords.kw_in)) return Style.BreakBeforeBinaryOperators == FormatStyle::BOS_None; if (Right.is(Keywords.kw_in)) return Style.BreakBeforeBinaryOperators != FormatStyle::BOS_None; if (Right.is(Keywords.kw_as)) return false; // must not break before as in 'x as type' casts if (Left.is(Keywords.kw_declare) && Right.isOneOf(Keywords.kw_module, tok::kw_namespace, Keywords.kw_function, tok::kw_class, tok::kw_enum, Keywords.kw_interface, Keywords.kw_type, Keywords.kw_var, Keywords.kw_let, tok::kw_const)) // See grammar for 'declare' statements at: // https://github.com/Microsoft/TypeScript/blob/master/doc/spec.md#A.10 return false; if (Left.isOneOf(Keywords.kw_module, tok::kw_namespace) && Right.isOneOf(tok::identifier, tok::string_literal)) { return false; // must not break in "module foo { ...}" } a2308 3 if (Right.is(TT_ObjCMethodExpr) && !Right.is(tok::r_square) && Left.isNot(TT_SelectorName)) return true; d2312 1 a2312 1 if (Left.is(tok::colon) && Left.isOneOf(TT_DictLiteral, TT_ObjCMethodExpr)) a2327 2 if (Left.is(TT_TemplateCloser) && Right.is(TT_TemplateOpener)) return true; d2393 1 a2393 1 tok::kw_class, tok::kw_struct, tok::comment) || d2416 1 a2416 2 llvm::errs() << " FakeRParens=" << Tok->FakeRParens; llvm::errs() << " Text='" << Tok->TokenText << "'\n"; @ 1.1.1.10 log @Import Clang pre-4.0.0 r291444. @ text @d45 1 a45 3 if (!CurrentToken || !CurrentToken->Previous) return false; if (NonTemplateLess.count(CurrentToken->Previous)) a46 11 const FormatToken& Previous = *CurrentToken->Previous; if (Previous.Previous) { if (Previous.Previous->Tok.isLiteral()) return false; if (Previous.Previous->is(tok::r_paren) && Contexts.size() > 1 && (!Previous.Previous->MatchingParen || !Previous.Previous->MatchingParen->is(TT_OverloadedOperatorLParen))) return false; } d49 1 a49 1 ScopedContextCreator ContextCreator(*this, tok::less, 12); a123 4 } else if (Style.Language == FormatStyle::LK_JavaScript && Line.startsWith(Keywords.kw_type, tok::identifier)) { // type X = (...); Contexts.back().IsExpression = false; a130 10 } else if (Style.Language == FormatStyle::LK_JavaScript && Left->Previous && (Left->Previous->is(Keywords.kw_function) || (Left->Previous->endsSequence(tok::identifier, Keywords.kw_function)))) { // function(...) or function f(...) Contexts.back().IsExpression = false; } else if (Style.Language == FormatStyle::LK_JavaScript && Left->Previous && Left->Previous->is(TT_JsTypeColon)) { // let x: (SomeType); Contexts.back().IsExpression = false; d162 2 a163 2 bool MightBeFunctionType = !Contexts[Contexts.size() - 2].IsExpression; bool ProbablyFunctionType = CurrentToken->isOneOf(tok::star, tok::amp); d190 1 a190 3 ProbablyFunctionType = true; if (CurrentToken->is(tok::comma)) MightBeFunctionType = false; d194 1 a194 1 if (MightBeFunctionType && ProbablyFunctionType && CurrentToken->Next && d196 2 a197 1 (CurrentToken->Next->is(tok::l_square) && Line.MustBeDeclaration))) d248 2 a249 3 if ((CurrentToken->Previous->isOneOf(tok::kw_const, tok::kw_auto) || CurrentToken->Previous->isSimpleTypeSpecifier()) && !CurrentToken->is(tok::l_brace)) a279 10 // Cases where '>' is followed by '['. // In C++, this can happen either in array of templates (foo[10]) // or when array is a nested template type (unique_ptr[]>). bool CppArrayTemplates = Style.Language == FormatStyle::LK_Cpp && Parent && Parent->is(TT_TemplateCloser) && (Contexts.back().CanBeExpression || Contexts.back().IsExpression || Contexts.back().InTemplateArgument); d281 1 a281 2 !CppArrayTemplates && (Style.Language == FormatStyle::LK_Cpp || Style.Language == FormatStyle::LK_ObjC) && d301 4 a304 4 (!CppArrayTemplates && Parent && Parent->isOneOf(TT_BinaryOperator, TT_TemplateCloser, tok::at, tok::comma, tok::l_paren, tok::l_square, tok::question, tok::colon, tok::kw_return, d397 1 a397 2 (Style.Language != FormatStyle::LK_Cpp && Style.Language != FormatStyle::LK_ObjC))) || d399 1 a399 2 (Previous->Tok.getIdentifierInfo() || Previous->is(tok::string_literal))) a404 3 if (CurrentToken->is(tok::comma) && Style.Language == FormatStyle::LK_JavaScript) Left->Type = TT_DictLiteral; d413 1 a413 1 if (Current->is(tok::l_brace) && Current->BlockKind == BK_Block) d482 6 a487 15 const FormatToken *BeforePrevious = Tok->Previous->Previous; if (!BeforePrevious || !(BeforePrevious->is(TT_CastRParen) || (BeforePrevious->is(TT_ObjCMethodExpr) && BeforePrevious->is(tok::colon))) || BeforePrevious->is(tok::r_square) || Contexts.back().LongestObjCSelectorName == 0) { Tok->Previous->Type = TT_SelectorName; if (Tok->Previous->ColumnWidth > Contexts.back().LongestObjCSelectorName) Contexts.back().LongestObjCSelectorName = Tok->Previous->ColumnWidth; if (!Contexts.back().FirstObjCSelectorName) Contexts.back().FirstObjCSelectorName = Tok->Previous; } d494 1 a494 2 if (Tok->getPreviousNonComment()->isOneOf(tok::r_paren, tok::kw_noexcept)) a506 8 case tok::pipe: case tok::amp: // | and & in declarations/type expressions represent union and // intersection types, respectively. if (Style.Language == FormatStyle::LK_JavaScript && !Contexts.back().IsExpression) Tok->Type = TT_JsTypeOperator; break; a515 3 if (Style.Language == FormatStyle::LK_JavaScript && Tok->Previous && Tok->Previous->is(tok::period)) break; d553 5 a557 1 if (parseAngle()) { d606 1 a606 1 if (Line.MustBeDeclaration && !Contexts.back().IsExpression && a668 1 bool IsFirstToken = CurrentToken->IsFirst; a672 13 if (Style.Language == FormatStyle::LK_JavaScript && IsFirstToken) { // JavaScript files can contain shebang lines of the form: // #!/usr/bin/env node // Treat these like C++ #include directives. while (CurrentToken) { // Tokens cannot be comments here. CurrentToken->Type = TT_ImplicitStringLiteral; next(); } return LT_ImportStatement; } a747 6 // import {...} from '...'; if (Style.Language == FormatStyle::LK_JavaScript && CurrentToken->is(Keywords.kw_import)) ImportStatement = true; d751 2 a752 14 if (Style.Language == FormatStyle::LK_JavaScript) { // export {...} from '...'; // An export followed by "from 'some string';" is a re-export from // another module identified by a URI and is treated as a // LT_ImportStatement (i.e. prevent wraps on it for long URIs). // Just "export {...};" or "export class ..." should not be treated as // an import in this sense. if (Line.First->is(tok::kw_export) && CurrentToken->is(Keywords.kw_from) && CurrentToken->Next && CurrentToken->Next->isStringLiteral()) ImportStatement = true; if (isClosureImportStatement(*CurrentToken)) ImportStatement = true; } d772 1 a772 1 bool isClosureImportStatement(const FormatToken &Tok) { d775 2 a776 1 return Tok.TokenText == "goog" && Tok.Next && Tok.Next->is(tok::period) && d780 1 a780 2 Tok.Next->Next->TokenText == "setTestOnly" || Tok.Next->Next->TokenText == "forwardDeclare") && d793 1 a793 2 TT_OverloadedOperator, TT_RegexLiteral, TT_TemplateString)) a855 3 // Type aliases use `type X = ...;` in TypeScript. !(Style.Language == FormatStyle::LK_JavaScript && Line.startsWith(Keywords.kw_type, tok::identifier)) && a884 4 } else if (Current.Previous && Current.Previous->is(TT_CtorInitializerColon)) { Contexts.back().IsExpression = true; Contexts.back().InCtorInitializer = true; d890 6 a895 2 if (Line.MustBeDeclaration && !Contexts.front().InCtorInitializer) Contexts.back().IsExpression = false; d941 1 a941 1 Line.MustBeDeclaration && !Contexts.back().IsExpression) { d967 7 a973 13 !Current.Next->isOneOf(tok::semi, tok::colon, tok::l_brace, tok::period, tok::arrow, tok::coloncolon)) if (FormatToken *AfterParen = Current.MatchingParen->Next) { // Make sure this isn't the return type of an Obj-C block declaration if (AfterParen->Tok.isNot(tok::caret)) { if (FormatToken *BeforeParen = Current.MatchingParen->Previous) if (BeforeParen->is(tok::identifier) && BeforeParen->TokenText == BeforeParen->TokenText.upper() && (!BeforeParen->Previous || BeforeParen->Previous->ClosesTemplateDeclaration)) Current.Type = TT_FunctionAnnotationRParen; } } a1037 3 if (Style.Language == FormatStyle::LK_JavaScript && Tok.Previous->is(Keywords.kw_in)) return false; a1071 1 Style.Language != FormatStyle::LK_ObjC && d1081 1 a1081 1 // If there is a closing parenthesis left of the current parentheses, d1100 1 a1100 1 TT_TemplateCloser, tok::ellipsis)) d1134 3 a1136 10 // Certain token types inside the parentheses mean that this can't be a // cast. for (const FormatToken *Token = Tok.MatchingParen->Next; Token != &Tok; Token = Token->Next) if (Token->is(TT_BinaryOperator)) return false; // If the following token is an identifier or 'this', this is a cast. All // cases where this can be something else are handled above. if (Tok.Next->isOneOf(tok::identifier, tok::kw_this)) d1170 3 a1172 1 if (!NextToken || NextToken->isOneOf(tok::arrow, tok::equal) || d1231 1 a1231 7 if (!PrevToken) return TT_UnaryOperator; if (PrevToken->isOneOf(TT_CastRParen, TT_UnaryOperator) && !PrevToken->is(tok::exclaim)) // There aren't any trailing unary operators except for TypeScript's // non-null operator (!). Thus, this must be squence of leading operators. a1392 3 if (Style.Language == FormatStyle::LK_JavaScript && Current->is(Keywords.kw_in)) return prec::Relational; d1397 1 a1397 2 if ((Style.Language == FormatStyle::LK_Java || Style.Language == FormatStyle::LK_JavaScript) && a1483 7 static unsigned maxNestingDepth(const AnnotatedLine &Line) { unsigned Result = 0; for (const auto* Tok = Line.First; Tok != nullptr; Tok = Tok->Next) Result = std::max(Result, Tok->NestingLevel); return Result; } a1491 8 // With very deep nesting, ExpressionParser uses lots of stack and the // formatting algorithm is very slow. We're not going to do a good job here // anyway - it's probably generated code being formatted by mistake. // Just skip the whole line. if (maxNestingDepth(Line) > 50) Line.Type = LT_Invalid; d1511 1 a1511 2 static bool isFunctionDeclarationName(const FormatToken &Current, const AnnotatedLine &Line) { a1530 1 // Find parentheses of parameter list. d1560 1 a1560 2 // Check whether parameter list can be long to a function declaration. if (!Next || !Next->is(tok::l_paren) || !Next->MatchingParen) a1561 3 // If the lines ends with "{", this is likely an function definition. if (Line.Last->is(tok::l_brace)) return true; a1562 4 return true; // Empty parentheses. // If there is an &/&& after the r_paren, this is likely a function. if (Next->MatchingParen->Next && Next->MatchingParen->Next->is(TT_PointerOrReference)) d1567 1 a1567 1 Tok->isOneOf(TT_PointerOrReference, TT_StartOfName, tok::ellipsis)) d1613 1 a1613 1 if (isFunctionDeclarationName(*Current, Line)) a1729 3 if ((Left.is(TT_TemplateString) && Left.TokenText.endswith("${")) || (Right.is(TT_TemplateString) && Right.TokenText.startswith("}"))) return 100; d1732 2 a1733 1 if (Right.is(tok::identifier) && Right.Next && Right.Next->is(TT_DictLiteral)) d1739 1 a1739 1 return 200; a1770 2 if (Left.is(tok::comment)) return 1000; a1846 12 if (Left.isOneOf(tok::plus, tok::comma) && Left.Previous && Left.Previous->isLabelString() && (Left.NextOperator || Left.OperatorIndex != 0)) return 45; if (Right.is(tok::plus) && Left.isLabelString() && (Right.NextOperator || Right.OperatorIndex != 0)) return 25; if (Left.is(tok::comma)) return 1; if (Right.is(tok::lessless) && Left.isLabelString() && (Right.NextOperator || Right.OperatorIndex != 1)) return 25; d1848 13 a1860 5 // Breaking at a << is really cheap. if (!Left.is(tok::r_paren) || Right.OperatorIndex > 0) // Slightly prefer to break before the first one in log-like statements. return 2; return 1; d1896 2 a1897 1 Line.Type == LT_ObjCDecl && Style.ObjCSpaceBeforeProtocolList) a1898 2 if (Right.is(tok::less) && Left.is(tok::kw_template)) return Style.SpaceAfterTemplateKeyword; d1913 1 a1913 2 return Left.Tok.isLiteral() || (Left.is(tok::identifier) && Left.Previous && Left.Previous->is(tok::kw_case)); d1917 5 a1921 3 return (Left.is(tok::r_paren) && Line.MightBeFunctionDecl) || (Left.Tok.isLiteral() || (Left.is(tok::kw_const) && Left.Previous && Left.Previous->is(tok::r_paren)) || d1924 1 a1924 3 (Line.IsMultiVariableDeclStmt && (Left.NestingLevel == 0 || (Left.NestingLevel == 1 && Line.First->is(tok::kw_for))))))); d1931 3 a1933 3 return Right.Tok.isLiteral() || Right.is(TT_BlockComment) || (Right.isOneOf(Keywords.kw_override, Keywords.kw_final) && !Right.is(TT_StartOfName)) || d2024 2 a2025 26 if (Left.is(TT_JsFatArrow)) return true; if ((Left.is(TT_TemplateString) && Left.TokenText.endswith("${")) || (Right.is(TT_TemplateString) && Right.TokenText.startswith("}"))) return false; if (Left.is(tok::identifier) && Right.is(TT_TemplateString)) return false; if (Right.is(tok::star) && Left.isOneOf(Keywords.kw_function, Keywords.kw_yield)) return false; if (Right.isOneOf(tok::l_brace, tok::l_square) && Left.isOneOf(Keywords.kw_function, Keywords.kw_yield)) return true; // JS methods can use some keywords as names (e.g. `delete()`). if (Right.is(tok::l_paren) && Line.MustBeDeclaration && Left.Tok.getIdentifierInfo()) return false; if (Left.isOneOf(Keywords.kw_let, Keywords.kw_var, Keywords.kw_in, Keywords.kw_of, tok::kw_const) && (!Left.Previous || !Left.Previous->is(tok::period))) return true; if (Left.isOneOf(tok::kw_for, Keywords.kw_as) && Left.Previous && Left.Previous->is(tok::period) && Right.is(tok::l_paren)) return false; if (Left.is(Keywords.kw_as) && Right.isOneOf(tok::l_square, tok::l_brace, tok::l_paren)) a2033 2 if (Left.is(TT_JsTypeOperator) || Right.is(TT_JsTypeOperator)) return false; a2045 7 // Postfix non-null assertion operator, as in `foo!.bar()`. if (Right.is(tok::exclaim) && (Left.isOneOf(tok::identifier, tok::r_paren, tok::r_square, tok::r_brace) || Left.Tok.isLiteral())) return false; if (Left.is(tok::exclaim) && Right.is(Keywords.kw_as)) return true; // "x! as string" d2114 1 a2114 1 if (Right.is(tok::coloncolon) && !Left.isOneOf(tok::l_brace, tok::comment)) d2117 1 a2117 2 !(Left.isOneOf(tok::identifier, tok::l_paren, tok::r_paren, tok::l_square) || d2155 2 a2156 2 if (Right.is(tok::string_literal) && Left.is(tok::plus) && Left.Previous && Left.Previous->is(tok::string_literal)) d2242 3 a2270 7 const FormatToken *NonComment = Right.getPreviousNonComment(); if (Left.isOneOf(tok::kw_return, tok::kw_continue, tok::kw_break, tok::kw_throw) || (NonComment && NonComment->isOneOf(tok::kw_return, tok::kw_continue, tok::kw_break, tok::kw_throw))) return false; // Otherwise a semicolon is inserted. a2276 18 if (Left.is(Keywords.kw_in)) return Style.BreakBeforeBinaryOperators == FormatStyle::BOS_None; if (Right.is(Keywords.kw_in)) return Style.BreakBeforeBinaryOperators != FormatStyle::BOS_None; if (Right.is(Keywords.kw_as)) return false; // must not break before as in 'x as type' casts if (Left.is(Keywords.kw_declare) && Right.isOneOf(Keywords.kw_module, tok::kw_namespace, Keywords.kw_function, tok::kw_class, tok::kw_enum, Keywords.kw_interface, Keywords.kw_type, Keywords.kw_var, Keywords.kw_let, tok::kw_const)) // See grammar for 'declare' statements at: // https://github.com/Microsoft/TypeScript/blob/master/doc/spec.md#A.10 return false; if (Left.isOneOf(Keywords.kw_module, tok::kw_namespace) && Right.isOneOf(tok::identifier, tok::string_literal)) { return false; // must not break in "module foo { ...}" } a2308 3 if (Right.is(TT_ObjCMethodExpr) && !Right.is(tok::r_square) && Left.isNot(TT_SelectorName)) return true; d2312 1 a2312 1 if (Left.is(tok::colon) && Left.isOneOf(TT_DictLiteral, TT_ObjCMethodExpr)) a2327 2 if (Left.is(TT_TemplateCloser) && Right.is(TT_TemplateOpener)) return true; d2393 1 a2393 1 tok::kw_class, tok::kw_struct, tok::comment) || d2416 1 a2416 2 llvm::errs() << " FakeRParens=" << Tok->FakeRParens; llvm::errs() << " Text='" << Tok->TokenText << "'\n"; @ 1.1.1.11 log @Import clang r309604 from branches/release_50 @ text @d92 1 a92 3 (CurrentToken->isOneOf(tok::colon, tok::question) && InExprContext && Style.Language != FormatStyle::LK_Proto && Style.Language != FormatStyle::LK_TextProto)) a105 8 if (Style.Language == FormatStyle::LK_Proto) { if (FormatToken *Previous = CurrentToken->getPreviousNonComment()) { if (CurrentToken->is(tok::colon) || (CurrentToken->isOneOf(tok::l_brace, tok::less) && Previous->isNot(tok::colon))) Previous->Type = TT_SelectorName; } } d138 1 a138 3 (Line.startsWith(Keywords.kw_type, tok::identifier) || Line.startsWith(tok::kw_export, Keywords.kw_type, tok::identifier))) { a139 1 // export type X = (...); a144 1 Left->Previous->endsSequence(tok::kw_constexpr, tok::kw_if) || d314 1 a314 1 Style.isCpp() && Parent && d320 2 a321 1 !CppArrayTemplates && Style.isCpp() && a339 6 } else if (Style.isCpp() && Contexts.back().ContextKind == tok::l_brace && Parent && Parent->isOneOf(tok::l_brace, tok::comma)) { Left->Type = TT_DesignatedInitializerLSquare; } else if (CurrentToken->is(tok::r_square) && Parent && Parent->is(TT_TemplateCloser)) { Left->Type = TT_ArraySubscriptLSquare; d389 1 a389 2 if (Left->isOneOf(TT_ArraySubscriptLSquare, TT_DesignatedInitializerLSquare)) { d433 1 a433 1 if (CurrentToken->isOneOf(tok::colon, tok::l_brace, tok::less)) { d436 4 a439 3 (!Contexts.back().ColonIsDictLiteral || !Style.isCpp())) || Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) && d522 1 a522 2 Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) { a523 4 if (Style.Language == FormatStyle::LK_TextProto) { if (FormatToken *Previous = Tok->getPreviousNonComment()) Previous->Type = TT_SelectorName; } a571 2 if (Tok->is(tok::kw_if) && CurrentToken && CurrentToken->is(tok::kw_constexpr)) next(); d579 3 a581 7 if (Style.Language == FormatStyle::LK_JavaScript) { if (Tok->Previous && Tok->Previous->is(tok::period)) break; // JS' for await ( ... if (CurrentToken && CurrentToken->is(Keywords.kw_await)) next(); } a614 5 if (Style.Language == FormatStyle::LK_TextProto) { FormatToken *Previous =Tok->getPreviousNonComment(); if (Previous && Previous->Type != TT_DictLiteral) Previous->Type = TT_SelectorName; } a620 5 if (Style.Language == FormatStyle::LK_TextProto) { FormatToken *Previous = Tok->getPreviousNonComment(); if (Previous && Previous->Type != TT_DictLiteral) Previous->Type = TT_SelectorName; } a678 2 else if (Contexts.back().InInheritanceList) Tok->Type = TT_InheritanceComma; a686 6 case tok::identifier: if (Tok->isOneOf(Keywords.kw___has_include, Keywords.kw___has_include_next)) { parseHasInclude(); } break; d695 3 a697 6 next(); while (CurrentToken) { // Mark tokens up to the trailing line comments as implicit string // literals. if (CurrentToken->isNot(tok::comment) && !CurrentToken->TokenText.startswith("//")) a729 8 void parseHasInclude() { if (!CurrentToken || !CurrentToken->is(tok::l_paren)) return; next(); // '(' parseIncludeDirective(); next(); // ')' } d780 1 a780 2 while (CurrentToken) { FormatToken *Tok = CurrentToken; a781 6 if (Tok->is(tok::l_paren)) parseParens(); else if (Tok->isOneOf(Keywords.kw___has_include, Keywords.kw___has_include_next)) parseHasInclude(); } d888 1 a888 1 TT_TemplateString, TT_ObjCStringLiteral)) a927 1 bool InInheritanceList = false; d951 1 a951 2 // Type aliases use `type X = ...;` in TypeScript and can be exported // using `export type ...`. d953 1 a953 3 (Line.startsWith(Keywords.kw_type, tok::identifier) || Line.startsWith(tok::kw_export, Keywords.kw_type, tok::identifier))) && a986 3 } else if (Current.Previous && Current.Previous->is(TT_InheritanceColon)) { Contexts.back().InInheritanceList = true; a1006 18 if (Style.Language == FormatStyle::LK_JavaScript) { if (Current.is(tok::exclaim)) { if (Current.Previous && (Current.Previous->isOneOf(tok::identifier, tok::kw_namespace, tok::r_paren, tok::r_square, tok::r_brace) || Current.Previous->Tok.isLiteral())) { Current.Type = TT_JsNonNullAssertion; return; } if (Current.Next && Current.Next->isOneOf(TT_BinaryOperator, Keywords.kw_as)) { Current.Type = TT_JsNonNullAssertion; return; } } } d1066 1 a1066 2 tok::comma, tok::period, tok::arrow, tok::coloncolon)) d1078 16 a1093 16 } else if (Current.is(tok::at) && Current.Next && Style.Language != FormatStyle::LK_JavaScript && Style.Language != FormatStyle::LK_Java) { // In Java & JavaScript, "@@..." is a decorator or annotation. In ObjC, it // marks declarations and properties that need special formatting. switch (Current.Next->Tok.getObjCKeywordID()) { case tok::objc_interface: case tok::objc_implementation: case tok::objc_protocol: Current.Type = TT_ObjCDecl; break; case tok::objc_property: Current.Type = TT_ObjCProperty; break; default: break; d1140 1 a1140 2 if (Tok.Previous->isOneOf(TT_LeadingJavaAnnotation, Keywords.kw_instanceof, Keywords.kw_as)) d1147 1 a1147 1 FormatToken *PreviousNotConst = Tok.getPreviousNonComment(); d1149 1 a1149 1 PreviousNotConst = PreviousNotConst->getPreviousNonComment(); d1178 3 a1180 1 if (!Style.isCpp() && Style.Language != FormatStyle::LK_Java) d1285 1 a1285 2 if (!NextToken || NextToken->isOneOf(tok::arrow, tok::equal, tok::kw_const) || d1294 1 a1294 2 tok::equal, tok::kw_delete, tok::kw_sizeof, tok::kw_throw) || d1448 1 a1448 3 if (!Current || (Current->closesScope() && (Current->MatchingParen || Current->is(TT_TemplateString))) || d1457 1 a1457 3 // In fragment of a JavaScript template string can look like '}..${' and // thus close a scope and open a new one at the same time. while (Current && (!Current->closesScope() || Current->opensScope())) { d1494 3 a1496 8 if (NextNonComment && Current->is(TT_SelectorName) && (NextNonComment->is(TT_DictLiteral) || ((Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) && NextNonComment->is(tok::less)))) return prec::Assignment; if (Current->is(TT_JsComputedPropertyName)) return prec::Assignment; d1501 2 a1502 1 if (Current->isOneOf(tok::semi, TT_InlineASMColon, TT_SelectorName) || d1513 1 a1513 1 Current->isOneOf(Keywords.kw_in, Keywords.kw_as)) d1597 4 a1600 18 bool CommentLine = true; for (const FormatToken *Tok = (*I)->First; Tok; Tok = Tok->Next) { if (!Tok->is(tok::comment)) { CommentLine = false; break; } } if (NextNonCommentLine && CommentLine) { // If the comment is currently aligned with the line immediately following // it, that's probably intentional and we should keep it. bool AlignedWithNextLine = NextNonCommentLine->First->NewlinesBefore <= 1 && NextNonCommentLine->First->OriginalColumn == (*I)->First->OriginalColumn; if (AlignedWithNextLine) (*I)->Level = NextNonCommentLine->Level; } else { a1601 1 } d1700 1 a1700 1 // Check whether parameter list can belong to a function declaration. a1713 4 if (Tok->is(tok::l_paren) && Tok->MatchingParen) { Tok = Tok->MatchingParen; continue; } d1756 2 a1832 1 unsigned IndentLevel = Line.Level; a1835 8 if (Current->MatchingParen && Current->MatchingParen->opensBlockOrBlockTypeList(Style)) { assert(IndentLevel > 0); --IndentLevel; } Current->IndentLevel = IndentLevel; if (Current->opensBlockOrBlockTypeList(Style)) ++IndentLevel; d1894 1 a1894 2 TT_ArrayInitializerLSquare, TT_DesignatedInitializerLSquare)) d1913 1 a1913 1 return 160; d1924 1 a1924 1 if (Left.isOneOf(TT_RangeBasedForLoopColon, TT_InheritanceColon, TT_CtorInitializerColon)) d1982 1 a1982 2 (Left.Previous->isOneOf(tok::kw_if, tok::kw_for) || Left.Previous->endsSequence(tok::kw_constexpr, tok::kw_if))) d2021 3 a2023 4 if (Level == prec::Unknown) Level = Right.getPrecedence(); if (Level == prec::Assignment) return Style.PenaltyBreakAssignment; d2113 1 a2113 2 !Right.isOneOf(TT_ObjCMethodExpr, TT_LambdaLSquare, TT_DesignatedInitializerLSquare) && a2131 1 Left.endsSequence(tok::kw_constexpr, tok::kw_if) || d2170 1 a2170 1 if (Style.isCpp()) { d2173 1 a2173 2 } else if (Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) { a2180 2 if (Right.isOneOf(tok::l_brace, tok::less) && Left.is(TT_SelectorName)) return true; a2183 12 // for await ( ... if (Right.is(tok::l_paren) && Left.is(Keywords.kw_await) && Left.Previous && Left.Previous->is(tok::kw_for)) return true; if (Left.is(Keywords.kw_async) && Right.is(tok::l_paren) && Right.MatchingParen) { const FormatToken *Next = Right.MatchingParen->getNextNonComment(); // An async arrow function, for example: `x = async () => foo();`, // as opposed to calling a function called async: `x = async();` if (Next && Next->is(TT_JsFatArrow)) return true; } d2187 1 a2187 5 // In tagged template literals ("html`bar baz`"), there is no space between // the tag identifier and the template string. getIdentifierInfo makes sure // that the identifier is not a pseudo keyword like `yield`, either. if (Left.is(tok::identifier) && Keywords.IsJavaScriptIdentifier(Left) && Right.is(TT_TemplateString)) d2199 2 a2200 6 if ((Left.isOneOf(Keywords.kw_let, Keywords.kw_var, Keywords.kw_in, tok::kw_const) || // "of" is only a keyword if it appears after another identifier // (e.g. as "const x of y" in a for loop). (Left.is(Keywords.kw_of) && Left.Previous && Left.Previous->Tok.getIdentifierInfo())) && d2230 4 a2233 1 if (Right.is(TT_JsNonNullAssertion)) d2235 1 a2235 1 if (Left.is(TT_JsNonNullAssertion) && Right.is(Keywords.kw_as)) d2299 2 a2300 3 if (Right.isOneOf(tok::arrow, tok::arrowstar, tok::periodstar) || Left.isOneOf(tok::arrow, tok::period, tok::arrowstar, tok::periodstar) || (Right.is(tok::period) && Right.isNot(TT_DesignatedInitializerPeriod))) a2304 5 if (Right.is(tok::coloncolon) && Left.is(tok::identifier)) // Generally don't remove existing spaces between an identifier and "::". // The identifier might actually be a macro name such as ALWAYS_INLINE. If // this turns out to be too lenient, add analysis of the identifier itself. return Right.WhitespaceRange.getBegin() != Right.WhitespaceRange.getEnd(); d2308 3 a2310 2 !(Left.isOneOf(tok::l_paren, tok::r_paren, tok::l_square, tok::kw___super, TT_TemplateCloser, TT_TemplateOpener)); d2372 2 a2373 2 Style.AllowShortFunctionsOnASingleLine & FormatStyle::SFS_InlineOnly); a2377 5 } else if (Style.Language == FormatStyle::LK_Cpp || Style.Language == FormatStyle::LK_ObjC || Style.Language == FormatStyle::LK_Proto) { if (Left.isStringLiteral() && Right.isStringLiteral()) return true; d2380 14 a2393 21 // If the last token before a '}', ']', or ')' is a comma or a trailing // comment, the intention is to insert a line break after it in order to make // shuffling around entries easier. Import statements, especially in // JavaScript, can be an exception to this rule. if (Style.JavaScriptWrapImports || Line.Type != LT_ImportStatement) { const FormatToken *BeforeClosingBrace = nullptr; if ((Left.isOneOf(tok::l_brace, TT_ArrayInitializerLSquare) || (Style.Language == FormatStyle::LK_JavaScript && Left.is(tok::l_paren))) && Left.BlockKind != BK_Block && Left.MatchingParen) BeforeClosingBrace = Left.MatchingParen->Previous; else if (Right.MatchingParen && (Right.MatchingParen->isOneOf(tok::l_brace, TT_ArrayInitializerLSquare) || (Style.Language == FormatStyle::LK_JavaScript && Right.MatchingParen->is(tok::l_paren)))) BeforeClosingBrace = &Left; if (BeforeClosingBrace && (BeforeClosingBrace->is(tok::comma) || BeforeClosingBrace->isTrailingComment())) return true; } d2401 3 d2415 2 a2416 6 if (Right.is(TT_CtorInitializerComma) && Style.BreakConstructorInitializers == FormatStyle::BCIS_BeforeComma && !Style.ConstructorInitializerAllOnOneLineOrOnePerLine) return true; if (Right.is(TT_CtorInitializerColon) && Style.BreakConstructorInitializers == FormatStyle::BCIS_BeforeComma && a2418 4 // Break only if we have multiple inheritance. if (Style.BreakBeforeInheritanceComma && Right.is(TT_InheritanceComma)) return true; d2424 3 a2426 8 if ((Right.Previous->is(tok::l_brace) || (Right.Previous->is(tok::less) && Right.Previous->Previous && Right.Previous->Previous->is(tok::equal)) ) && Right.NestingLevel == 1 && Style.Language == FormatStyle::LK_Proto) { // Don't put enums or option definitions onto single lines in protocol // buffers. a2427 1 } d2461 6 a2466 8 if (NonComment && NonComment->isOneOf(tok::kw_return, tok::kw_continue, tok::kw_break, tok::kw_throw, Keywords.kw_interface, Keywords.kw_type, tok::kw_static, tok::kw_public, tok::kw_private, tok::kw_protected, Keywords.kw_readonly, Keywords.kw_abstract, Keywords.kw_get, Keywords.kw_set)) return false; // Otherwise automatic semicolon insertion would trigger. a2478 4 if (Left.is(Keywords.kw_as)) return true; if (Left.is(TT_JsNonNullAssertion)) return true; d2488 1 a2488 1 Right.isOneOf(tok::identifier, tok::string_literal)) d2490 1 a2490 4 if (Right.is(TT_TemplateString) && Right.closesScope()) return false; if (Left.is(TT_TemplateString) && Left.opensScope()) return true; d2514 1 a2514 4 return Left.BlockKind == BK_BracedInit || (Left.is(TT_CtorInitializerColon) && Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon); a2586 4 if (Left.is(TT_CtorInitializerColon)) return Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon; if (Right.is(TT_CtorInitializerColon)) return Style.BreakConstructorInitializers != FormatStyle::BCIS_AfterColon; d2588 1 a2588 1 Style.BreakConstructorInitializers == FormatStyle::BCIS_BeforeComma) d2591 1 a2591 5 Style.BreakConstructorInitializers == FormatStyle::BCIS_BeforeComma) return true; if (Left.is(TT_InheritanceComma) && Style.BreakBeforeInheritanceComma) return false; if (Right.is(TT_InheritanceComma) && Style.BreakBeforeInheritanceComma) d2618 1 a2618 2 (Left.is(tok::l_paren) && !Right.is(tok::r_paren)) || (Left.is(TT_TemplateOpener) && !Right.is(TT_TemplateCloser)); a2629 1 << " BK=" << Tok->BlockKind @ 1.1.1.11.4.1 log @Sync with HEAD @ text @d11 1 a11 1 /// This file implements a token annotator, i.e. creates d28 1 a28 16 /// Returns \c true if the token can be used as an identifier in /// an Objective-C \c @@selector, \c false otherwise. /// /// Because getFormattingLangOpts() always lexes source code as /// Objective-C++, C++ keywords like \c new and \c delete are /// lexed as tok::kw_*, not tok::identifier, even for Objective-C. /// /// For Objective-C and Objective-C++, both identifiers and keywords /// are valid inside @@selector(...) (or a macro which /// invokes @@selector(...)). So, we allow treat any identifier or /// keyword as a potential Objective-C selector component. static bool canBeObjCSelectorComponent(const FormatToken &Tok) { return Tok.Tok.getIdentifierInfo() != nullptr; } /// A parser that gathers additional information about tokens. d50 1 a50 1 const FormatToken &Previous = *CurrentToken->Previous; // The '<'. d82 1 a82 11 // In TT_Proto, we must distignuish between: // map // msg < item: data > // msg: < item: data > // In TT_TextProto, map does not occur. if (Style.Language == FormatStyle::LK_TextProto || (Style.Language == FormatStyle::LK_Proto && Left->Previous && Left->Previous->isOneOf(TT_SelectorName, TT_DictLiteral))) CurrentToken->Type = TT_DictLiteral; else CurrentToken->Type = TT_TemplateCloser; d134 4 a137 1 if (FormatToken *MaybeSel = Left->Previous) { d155 5 a159 5 (Left->Previous->isOneOf(tok::kw_static_assert, tok::kw_decltype, tok::kw_if, tok::kw_while, tok::l_paren, tok::comma) || Left->Previous->endsSequence(tok::kw_constexpr, tok::kw_if) || Left->Previous->is(TT_BinaryOperator))) { a202 7 // MightBeFunctionType and ProbablyFunctionType are used for // function pointer and reference types as well as Objective-C // block types: // // void (*FunctionPointer)(void); // void (&FunctionReference)(void); // void (^ObjCBlock)(void); d204 1 a204 2 bool ProbablyFunctionType = CurrentToken->isOneOf(tok::star, tok::amp, tok::caret); a208 1 FormatToken *PossibleObjCForInToken = nullptr; d240 1 a240 2 Left->Type = Left->Next->is(tok::caret) ? TT_ObjCBlockLParen : TT_FunctionTypeLParen; d294 1 a294 1 if (CurrentToken->isOneOf(tok::semi, tok::colon)) { d296 2 a297 9 if (PossibleObjCForInToken) { PossibleObjCForInToken->Type = TT_Unknown; PossibleObjCForInToken = nullptr; } } if (MightBeObjCForRangeLoop && CurrentToken->is(Keywords.kw_in)) { PossibleObjCForInToken = CurrentToken; PossibleObjCForInToken->Type = TT_ObjCForIn; } a312 26 bool isCpp11AttributeSpecifier(const FormatToken &Tok) { if (!Style.isCpp() || !Tok.startsSequence(tok::l_square, tok::l_square)) return false; const FormatToken *AttrTok = Tok.Next->Next; if (!AttrTok) return false; // C++17 '[[using ns: foo, bar(baz, blech)]]' // We assume nobody will name an ObjC variable 'using'. if (AttrTok->startsSequence(tok::kw_using, tok::identifier, tok::colon)) return true; if (AttrTok->isNot(tok::identifier)) return false; while (AttrTok && !AttrTok->startsSequence(tok::r_square, tok::r_square)) { // ObjC message send. We assume nobody will use : in a C++11 attribute // specifier parameter, although this is technically valid: // [[foo(:)]] if (AttrTok->is(tok::colon) || AttrTok->startsSequence(tok::identifier, tok::identifier)) return false; if (AttrTok->is(tok::ellipsis)) return true; AttrTok = AttrTok->Next; } return AttrTok && AttrTok->startsSequence(tok::r_square, tok::r_square); } d319 1 a319 2 // expression, it could the start of an Objective-C array literal, // or it could be a C++ attribute specifier [[foo::bar]]. d328 2 a329 1 Style.isCpp() && Parent && Parent->is(TT_TemplateCloser) && a332 3 bool IsCpp11AttributeSpecifier = isCpp11AttributeSpecifier(*Left) || Contexts.back().InCpp11AttributeSpecifier; d334 1 a334 1 !CppArrayTemplates && Style.isCpp() && !IsCpp11AttributeSpecifier && d336 1 a336 1 !CurrentToken->isOneOf(tok::l_brace, tok::r_square) && a340 1 // FIXME(bug 36976): ObjC return types shouldn't use TT_CastRParen. d346 1 a346 3 if (Left->isCppStructuredBinding(Style)) { Left->Type = TT_StructuredBindingLSquare; } else if (Left->is(TT_Unknown)) { a348 2 } else if (IsCpp11AttributeSpecifier) { Left->Type = TT_AttributeSquare; d360 6 a365 42 Style.Language == FormatStyle::LK_TextProto) { // Square braces in LK_Proto can either be message field attributes: // // optional Aaa aaa = 1 [ // (aaa) = aaa // ]; // // extensions 123 [ // (aaa) = aaa // ]; // // or text proto extensions (in options): // // option (Aaa.options) = { // [type.type/type] { // key: value // } // } // // or repeated fields (in options): // // option (Aaa.options) = { // keys: [ 1, 2, 3 ] // } // // In the first and the third case we want to spread the contents inside // the square braces; in the second we want to keep them inline. Left->Type = TT_ArrayInitializerLSquare; if (!Left->endsSequence(tok::l_square, tok::numeric_constant, tok::equal) && !Left->endsSequence(tok::l_square, tok::numeric_constant, tok::identifier) && !Left->endsSequence(tok::l_square, tok::colon, TT_SelectorName)) { Left->Type = TT_ProtoExtensionLSquare; BindingIncrease = 10; } } else if (!CppArrayTemplates && Parent && Parent->isOneOf(TT_BinaryOperator, TT_TemplateCloser, tok::at, tok::comma, tok::l_paren, tok::l_square, tok::question, tok::colon, tok::kw_return, // Should only be relevant to JavaScript: tok::kw_default)) { a374 4 if (Style.Language == FormatStyle::LK_JavaScript && Parent && Parent->is(TT_JsTypeColon)) Contexts.back().IsExpression = false; a375 1 Contexts.back().InCpp11AttributeSpecifier = IsCpp11AttributeSpecifier; d379 2 a380 4 if (IsCpp11AttributeSpecifier) CurrentToken->Type = TT_AttributeSquare; else if (CurrentToken->Next && CurrentToken->Next->is(tok::l_paren) && Left->is(TT_ObjCMethodExpr)) { a387 6 // If we haven't seen a colon yet, make sure the last identifier // before the r_square is tagged as a selector name component. if (!ColonFound && CurrentToken->Previous && CurrentToken->Previous->is(TT_Unknown) && canBeObjCSelectorComponent(*CurrentToken->Previous)) CurrentToken->Previous->Type = TT_SelectorName; a395 14 // FirstObjCSelectorName is set when a colon is found. This does // not work, however, when the method has no parameters. // Here, we set FirstObjCSelectorName when the end of the method call is // reached, in case it was not set already. if (!Contexts.back().FirstObjCSelectorName) { FormatToken* Previous = CurrentToken->getPreviousNonComment(); if (Previous && Previous->is(TT_SelectorName)) { Previous->ObjCSelectorNameParts = 1; Contexts.back().FirstObjCSelectorName = Previous; } } else { Left->ParameterCount = Contexts.back().FirstObjCSelectorName->ObjCSelectorNameParts; } d408 2 a409 8 if (IsCpp11AttributeSpecifier && CurrentToken->endsSequence(tok::colon, tok::identifier, tok::kw_using)) { // Remember that this is a [[using ns: foo]] C++ attribute, so we // don't add a space before the colon (unlike other colons). CurrentToken->Type = TT_AttributeColon; } else if (Left->isOneOf(TT_ArraySubscriptLSquare, TT_DesignatedInitializerLSquare)) { a413 1 // FIXME(bug 36976): ObjC return types shouldn't use TT_CastRParen. a441 3 if (Style.Language == FormatStyle::LK_JavaScript && Left->Previous && Left->Previous->is(TT_JsTypeColon)) Contexts.back().IsExpression = false; d455 7 a461 11 if (Previous->is(TT_JsTypeOptionalQuestion)) Previous = Previous->getPreviousNonComment(); if ((CurrentToken->is(tok::colon) && (!Contexts.back().ColonIsDictLiteral || !Style.isCpp())) || Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) { Left->Type = TT_DictLiteral; if (Previous->Tok.getIdentifierInfo() || Previous->is(tok::string_literal)) Previous->Type = TT_SelectorName; } a476 3 // For ObjC methods, the number of parameters is calculated differently as // method declarations have a different structure (the parameters are not // inside a bracket scope). a533 2 (!Contexts.back().IsExpression && Contexts.back().ContextKind == tok::l_brace) || // object type a535 1 Contexts.back().IsExpression = false; a551 5 // Ensure we tag all identifiers in method declarations as // TT_SelectorName. bool UnknownIdentifierInMethodDeclaration = Line.startsWith(TT_ObjCMethodSpecifier) && Tok->Previous->is(tok::identifier) && Tok->Previous->is(TT_Unknown); a552 1 // FIXME(bug 36976): ObjC return types shouldn't use TT_CastRParen. d557 1 a557 2 Contexts.back().LongestObjCSelectorName == 0 || UnknownIdentifierInMethodDeclaration) { d559 4 a564 7 else if (Tok->Previous->ColumnWidth > Contexts.back().LongestObjCSelectorName) Contexts.back().LongestObjCSelectorName = Tok->Previous->ColumnWidth; Tok->Previous->ParameterIndex = Contexts.back().FirstObjCSelectorName->ObjCSelectorNameParts; ++Contexts.back().FirstObjCSelectorName->ObjCSelectorNameParts; d577 2 a578 4 } else if (canBeObjCSelectorComponent(*Tok->Previous) && Tok->Next && (Tok->Next->isOneOf(tok::r_paren, tok::comma) || (canBeObjCSelectorComponent(*Tok->Next) && Tok->Next->Next && Tok->Next->Next->is(tok::colon)))) { d596 1 a596 2 if (Tok->is(tok::kw_if) && CurrentToken && CurrentToken->is(tok::kw_constexpr)) d606 1 a606 3 // x.for and {for: ...} if ((Tok->Previous && Tok->Previous->is(tok::period)) || (Tok->Next && Tok->Next->is(tok::colon))) d622 2 a623 1 if (Tok->Previous && Tok->Previous->is(tok::r_paren) && d646 1 a646 1 FormatToken *Previous = Tok->getPreviousNonComment(); d656 1 a656 9 // In TT_Proto, we must distignuish between: // map // msg < item: data > // msg: < item: data > // In TT_TextProto, map does not occur. if (Style.Language == FormatStyle::LK_TextProto || (Style.Language == FormatStyle::LK_Proto && Tok->Previous && Tok->Previous->isOneOf(TT_SelectorName, TT_DictLiteral))) { Tok->Type = TT_DictLiteral; d677 1 a677 2 if (Style.Language != FormatStyle::LK_TextProto) Tok->Type = TT_BinaryOperator; a679 3 if (Style.Language == FormatStyle::LK_TextProto || Style.Language == FormatStyle::LK_Proto) break; d686 1 a686 2 CurrentToken->Previous->isOneOf(TT_BinaryOperator, TT_UnaryOperator, tok::comma)) d743 2 a744 2 next(); while (CurrentToken) { d784 1 a784 1 next(); // '(' d786 1 a786 1 next(); // ')' d845 1 a845 1 Keywords.kw___has_include_next)) d858 1 a858 1 // definitions (github.com/google/protobuf) or missing "#" (either way we d936 5 a940 5 Tok.Next->Next && (Tok.Next->Next->TokenText == "module" || Tok.Next->Next->TokenText == "provide" || Tok.Next->Next->TokenText == "require" || Tok.Next->Next->TokenText == "forwardDeclare") && d974 1 a974 1 /// A struct to hold information valid in a specific context, e.g. a996 1 bool InCpp11AttributeSpecifier = false; d999 1 a999 1 /// Puts a new \c Context onto the stack \c Contexts for the lifetime d1057 2 a1058 1 } else if (Current.Previous && Current.Previous->is(TT_InheritanceColon)) { a1106 5 } else if (Current.is(tok::semi)) { // Reset FirstStartOfName after finding a semicolon so that a for loop // with multiple increment statements is not confused with a for loop // having multiple variable declarations. Contexts.back().FirstStartOfName = nullptr; d1116 4 a1119 4 Current.Type = determineStarAmpUsage(Current, Contexts.back().CanBeExpression && Contexts.back().IsExpression, Contexts.back().InTemplateArgument); d1138 1 a1138 3 (!Current.Previous || Current.Previous->isNot(tok::l_square)) && (!Current.is(tok::greater) && Style.Language != FormatStyle::LK_TextProto)) { a1196 11 } else if (canBeObjCSelectorComponent(Current) && // FIXME(bug 36976): ObjC return types shouldn't use TT_CastRParen. Current.Previous && Current.Previous->is(TT_CastRParen) && Current.Previous->MatchingParen && Current.Previous->MatchingParen->Previous && Current.Previous->MatchingParen->Previous->is( TT_ObjCMethodSpecifier)) { // This is the first part of an Objective-C selector name. (If there's no // colon after this, this is the only place which annotates the identifier // as a selector.) Current.Type = TT_SelectorName; d1223 1 a1223 1 /// Take a guess at whether \p Tok starts a name of a function or d1268 1 a1268 1 /// Determine whether ')' is ending a cast. d1365 1 a1365 1 /// Return the type of the given token assuming it is * or &. d1399 5 a1403 7 if (PrevToken->is(tok::r_paren) && PrevToken->MatchingParen) { FormatToken *TokenBeforeMatchingParen = PrevToken->MatchingParen->getPreviousNonComment(); if (TokenBeforeMatchingParen && TokenBeforeMatchingParen->isOneOf(tok::kw_typeof, tok::kw_decltype)) return TT_PointerOrReference; } d1440 4 a1443 2 if (PrevToken->isOneOf(TT_CastRParen, TT_UnaryOperator)) // This must be a sequence of leading unary operators. d1460 1 a1460 1 /// Determine whether ++/-- are pre- or post-increments/-decrements. d1489 1 a1489 1 /// Parses binary expressions by inserting fake parenthesis based on d1497 1 a1497 1 /// Parse expressions with the given operator precedence. d1584 1 a1584 1 /// Gets the precedence (+1) of the given token for binary operators d1592 1 a1592 1 (NextNonComment->isOneOf(TT_DictLiteral, TT_JsTypeColon) || d1643 1 a1643 1 /// Parse unary operator expressions and surround them with fake d1646 3 a1648 4 llvm::SmallVector Tokens; while (Current && Current->is(TT_UnaryOperator)) { Tokens.push_back(Current); next(); d1650 7 a1656 4 parse(PrecedenceArrowAndPeriod); for (FormatToken *Token : llvm::reverse(Tokens)) // The actual precedence doesn't matter. addFakeParenthesis(Token, prec::Unknown); d1706 9 a1714 12 // If the comment is currently aligned with the line immediately following // it, that's probably intentional and we should keep it. if (NextNonCommentLine && CommentLine && NextNonCommentLine->First->NewlinesBefore <= 1 && NextNonCommentLine->First->OriginalColumn == (*I)->First->OriginalColumn) { // Align comments for preprocessor lines with the # in column 0. // Otherwise, align with the next line. (*I)->Level = (NextNonCommentLine->Type == LT_PreprocessorDirective || NextNonCommentLine->Type == LT_ImportStatement) ? 0 : NextNonCommentLine->Level; d1725 1 a1725 1 for (const auto *Tok = Line.First; Tok != nullptr; Tok = Tok->Next) d1767 1 a1767 1 auto skipOperatorName = [](const FormatToken *Next) -> const FormatToken * { d1775 2 a1776 2 if (Next->Next && Next->Next->is(tok::l_square) && Next->Next->Next && Next->Next->Next->is(tok::r_square)) d1875 1 a1875 2 Line.First->IsMultiline ? Style.ColumnLimit : Line.FirstStartColumn + Line.First->ColumnWidth; d1944 2 a1945 14 // Reduce penalty for aligning ObjC method arguments using the colon // alignment as this is the canonical way (still prefer fitting everything // into one line if possible). Trying to fit a whole expression into one // line should not force other line breaks (e.g. when ObjC method // expression is a part of other expression). Current->SplitPenalty = splitPenalty(Line, *Current, InFunctionDecl); if (Style.Language == FormatStyle::LK_ObjC && Current->is(TT_SelectorName) && Current->ParameterIndex > 0) { if (Current->ParameterIndex == 1) Current->SplitPenalty += 5 * Current->BindingStrength; } else { Current->SplitPenalty += 20 * Current->BindingStrength; } d1965 1 a1965 1 LLVM_DEBUG({ printDebugInfo(Line); }); a2007 3 // Prefer breaking call chains (".foo") over empty "{}", "[]" or "()". if (Left.opensScope() && Right.closesScope()) return 200; d2022 1 a2022 1 TT_DesignatedInitializerLSquare, TT_AttributeSquare)) d2052 1 a2052 2 if (Left.isOneOf(TT_RangeBasedForLoopColon, TT_InheritanceColon, TT_CtorInitializerColon)) a2105 7 // In Objective-C type declarations, avoid breaking after the category's // open paren (we'll prefer breaking after the protocol list's opening // angle bracket, if present). if (Line.Type == LT_ObjCDecl && Left.is(tok::l_paren) && Left.Previous && Left.Previous->isOneOf(tok::identifier, tok::greater)) return 500; d2110 2 a2111 2 (Left.Previous->isOneOf(tok::kw_if, tok::kw_for) || Left.Previous->endsSequence(tok::kw_constexpr, tok::kw_if))) a2121 2 if (Left.is(tok::l_brace) && !Style.Cpp11BracedListStyle) return 19; d2131 1 a2131 1 return 50; a2146 2 if (Left.ClosesTemplateDeclaration) return Style.PenaltyBreakTemplateDeclaration; a2164 2 if (Left.is(Keywords.kw_assert) && Style.Language == FormatStyle::LK_Java) return true; d2181 3 a2183 6 if (Right.is(tok::less) && Line.Type == LT_ObjCDecl) { bool IsLightweightGeneric = Right.MatchingParen && Right.MatchingParen->Next && Right.MatchingParen->Next->is(tok::colon); return !IsLightweightGeneric && Style.ObjCSpaceBeforeProtocolList; } d2197 1 a2197 9 if (Left.is(tok::less) || Right.isOneOf(tok::greater, tok::less)) { if (Style.Language == FormatStyle::LK_TextProto || (Style.Language == FormatStyle::LK_Proto && (Left.is(TT_DictLiteral) || Right.is(TT_DictLiteral)))) { // Format empty list as `<>`. if (Left.is(tok::less) && Right.is(tok::greater)) return false; return !Style.Cpp11BracedListStyle; } a2198 1 } d2204 4 a2207 11 if (Right.is(TT_PointerOrReference)) { if (Left.is(tok::r_paren) && Line.MightBeFunctionDecl) { if (!Left.MatchingParen) return true; FormatToken *TokenBeforeMatchingParen = Left.MatchingParen->getPreviousNonComment(); if (!TokenBeforeMatchingParen || !TokenBeforeMatchingParen->isOneOf(tok::kw_typeof, tok::kw_decltype)) return true; } return (Left.Tok.isLiteral() || a2212 1 } a2230 9 const auto SpaceRequiredForArrayInitializerLSquare = [](const FormatToken &LSquareTok, const FormatStyle &Style) { return Style.SpacesInContainerLiterals || ((Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) && !Style.Cpp11BracedListStyle && LSquareTok.endsSequence(tok::l_square, tok::colon, TT_SelectorName)); }; d2232 4 a2235 5 return (Left.is(TT_ArrayInitializerLSquare) && Right.isNot(tok::r_square) && SpaceRequiredForArrayInitializerLSquare(Left, Style)) || (Left.isOneOf(TT_ArraySubscriptLSquare, TT_StructuredBindingLSquare) && Style.SpacesInSquareBrackets && Right.isNot(tok::r_square)); d2238 2 a2239 3 ((Right.MatchingParen->is(TT_ArrayInitializerLSquare) && SpaceRequiredForArrayInitializerLSquare(*Right.MatchingParen, Style)) || d2241 1 a2241 3 Right.MatchingParen->isOneOf(TT_ArraySubscriptLSquare, TT_StructuredBindingLSquare)) || Right.MatchingParen->is(TT_AttributeParen)); d2244 1 a2244 2 TT_DesignatedInitializerLSquare, TT_StructuredBindingLSquare, TT_AttributeSquare) && d2256 1 a2256 2 if ((Left.is(tok::r_paren) && Left.is(TT_AttributeParen)) || (Left.is(tok::r_square) && Left.is(TT_AttributeSquare))) d2290 1 a2290 1 // A.>>DoSomething(); a2293 7 if (Left.is(tok::l_brace) && Left.endsSequence(TT_DictLiteral, tok::at)) // Objective-C dictionary literal -> no space after opening brace. return false; if (Right.is(tok::r_brace) && Right.MatchingParen && Right.MatchingParen->endsSequence(TT_DictLiteral, tok::at)) // Objective-C dictionary literal -> no space before closing brace. return false; a2304 3 if (Right.is(tok::l_brace) && Right.BlockKind == BK_BracedInit && !Left.opensScope() && Style.SpaceBeforeCpp11BracedList) return true; a2315 13 // Slashes occur in text protocol extension syntax: [type/type] { ... }. if (Left.is(tok::slash) || Right.is(tok::slash)) return false; if (Left.MatchingParen && Left.MatchingParen->is(TT_ProtoExtensionLSquare) && Right.isOneOf(tok::l_brace, tok::less)) return !Style.Cpp11BracedListStyle; // A percent is probably part of a formatting specification, such as %lld. if (Left.is(tok::percent)) return false; // Preserve the existence of a space before a percent for cases like 0x%04x // and "%d %d" if (Left.is(tok::numeric_constant) && Right.is(tok::percent)) return Right.WhitespaceRange.getEnd() != Right.WhitespaceRange.getBegin(); d2320 2 a2321 2 if (Right.is(tok::l_paren) && Left.is(Keywords.kw_await) && Left.Previous && Left.Previous->is(tok::kw_for)) d2344 1 a2344 2 Left.isOneOf(Keywords.kw_function, Keywords.kw_yield, Keywords.kw_extends, Keywords.kw_implements)) d2346 4 a2349 14 if (Right.is(tok::l_paren)) { // JS methods can use some keywords as names (e.g. `delete()`). if (Line.MustBeDeclaration && Left.Tok.getIdentifierInfo()) return false; // Valid JS method names can include keywords, e.g. `foo.delete()` or // `bar.instanceof()`. Recognize call positions by preceding period. if (Left.Previous && Left.Previous->is(tok::period) && Left.Tok.getIdentifierInfo()) return false; // Additional unary JavaScript operators that need a space after. if (Left.isOneOf(tok::kw_throw, Keywords.kw_await, Keywords.kw_typeof, tok::kw_void)) return true; } d2353 1 a2353 2 // (e.g. as "const x of y" in a for loop), or after a destructuring // operation (const [x, y] of z, const {a, b} of c). d2355 1 a2355 2 (Left.Previous->Tok.is(tok::identifier) || Left.Previous->isOneOf(tok::r_square, tok::r_brace)))) && d2387 2 a2388 3 if (Left.is(TT_JsNonNullAssertion) && Right.isOneOf(Keywords.kw_as, Keywords.kw_in)) return true; // "x! as string", "x! in y" d2406 2 a2407 4 if (Left.is(tok::r_paren) && canBeObjCSelectorComponent(Right)) // Don't space between ')' and or ')' and 'new'. 'new' is not a // keyword in Objective-C, and '+ (instancetype)new;' is a standard class // method declaration. d2423 1 a2423 1 if (Right.is(TT_ObjCBlockLParen)) a2424 7 if (Right.is(TT_CtorInitializerColon)) return Style.SpaceBeforeCtorInitializerColon; if (Right.is(TT_InheritanceColon) && !Style.SpaceBeforeInheritanceColon) return false; if (Right.is(TT_RangeBasedForLoopColon) && !Style.SpaceBeforeRangeBasedForLoopColon) return false; a2436 2 if (Right.is(TT_AttributeColon)) return false; d2448 1 a2448 4 if (Left.is(tok::greater) && Right.is(tok::greater)) { if (Style.Language == FormatStyle::LK_TextProto || (Style.Language == FormatStyle::LK_Proto && Left.is(TT_DictLiteral))) return !Style.Cpp11BracedListStyle; a2450 1 } d2467 1 a2467 3 tok::kw___super, TT_TemplateCloser, TT_TemplateOpener)) || (Left.is(tok ::l_paren) && Style.SpacesInParentheses); a2469 8 // Space before TT_StructuredBindingLSquare. if (Right.is(TT_StructuredBindingLSquare)) return !Left.isOneOf(tok::amp, tok::ampamp) || Style.PointerAlignment != FormatStyle::PAS_Right; // Space before & or && following a TT_StructuredBindingLSquare. if (Right.Next && Right.Next->is(TT_StructuredBindingLSquare) && Right.isOneOf(tok::amp, tok::ampamp)) return Style.PointerAlignment != FormatStyle::PAS_Left; d2519 1 a2519 3 Line.startsWith(tok::kw_const, tok::kw_enum) || Line.startsWith(tok::kw_export, tok::kw_enum) || Line.startsWith(tok::kw_export, tok::kw_const, tok::kw_enum))) d2537 1 a2537 2 Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) { d2579 1 a2579 1 Style.AlwaysBreakTemplateDeclarations == FormatStyle::BTDS_Yes) d2590 1 a2590 1 if (Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma && d2592 1 a2592 1 return true; d2594 4 a2597 4 // Multiline raw string literals are special wrt. line breaks. The author // has made a deliberate choice and might have aligned the contents of the // string literal accordingly. Thus, we try keep existing line breaks. return Right.IsMultiline && Right.NewlinesBefore > 0; d2599 4 a2602 2 (Right.Previous->is(tok::less) && Right.Previous->Previous && Right.Previous->Previous->is(tok::equal))) && a2611 2 (Line.startsWith(tok::kw_typedef, tok::kw_enum) && Style.BraceWrapping.AfterEnum) || a2623 88 if (Right.is(TT_ProtoExtensionLSquare)) return true; // In text proto instances if a submessage contains at least 2 entries and at // least one of them is a submessage, like A { ... B { ... } ... }, // put all of the entries of A on separate lines by forcing the selector of // the submessage B to be put on a newline. // // Example: these can stay on one line: // a { scalar_1: 1 scalar_2: 2 } // a { b { key: value } } // // and these entries need to be on a new line even if putting them all in one // line is under the column limit: // a { // scalar: 1 // b { key: value } // } // // We enforce this by breaking before a submessage field that has previous // siblings, *and* breaking before a field that follows a submessage field. // // Be careful to exclude the case [proto.ext] { ... } since the `]` is // the TT_SelectorName there, but we don't want to break inside the brackets. // // Another edge case is @@submessage { key: value }, which is a common // substitution placeholder. In this case we want to keep `@@` and `submessage` // together. // // We ensure elsewhere that extensions are always on their own line. if ((Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) && Right.is(TT_SelectorName) && !Right.is(tok::r_square) && Right.Next) { // Keep `@@submessage` together in: // @@submessage { key: value } if (Right.Previous && Right.Previous->is(tok::at)) return false; // Look for the scope opener after selector in cases like: // selector { ... // selector: { ... // selector: @@base { ... FormatToken *LBrace = Right.Next; if (LBrace && LBrace->is(tok::colon)) { LBrace = LBrace->Next; if (LBrace && LBrace->is(tok::at)) { LBrace = LBrace->Next; if (LBrace) LBrace = LBrace->Next; } } if (LBrace && // The scope opener is one of {, [, <: // selector { ... } // selector [ ... ] // selector < ... > // // In case of selector { ... }, the l_brace is TT_DictLiteral. // In case of an empty selector {}, the l_brace is not TT_DictLiteral, // so we check for immediately following r_brace. ((LBrace->is(tok::l_brace) && (LBrace->is(TT_DictLiteral) || (LBrace->Next && LBrace->Next->is(tok::r_brace)))) || LBrace->is(TT_ArrayInitializerLSquare) || LBrace->is(tok::less))) { // If Left.ParameterCount is 0, then this submessage entry is not the // first in its parent submessage, and we want to break before this entry. // If Left.ParameterCount is greater than 0, then its parent submessage // might contain 1 or more entries and we want to break before this entry // if it contains at least 2 entries. We deal with this case later by // detecting and breaking before the next entry in the parent submessage. if (Left.ParameterCount == 0) return true; // However, if this submessage is the first entry in its parent // submessage, Left.ParameterCount might be 1 in some cases. // We deal with this case later by detecting an entry // following a closing paren of this submessage. } // If this is an entry immediately following a submessage, it will be // preceded by a closing paren of that submessage, like in: // left---. .---right // v v // sub: { ... } key: value // If there was a comment between `}` an `key` above, then `key` would be // put on a new line anyways. if (Left.isOneOf(tok::r_brace, tok::greater, tok::r_square)) return true; } d2642 6 a2647 11 NonComment->isOneOf( tok::kw_return, Keywords.kw_yield, tok::kw_continue, tok::kw_break, tok::kw_throw, Keywords.kw_interface, Keywords.kw_type, tok::kw_static, tok::kw_public, tok::kw_private, tok::kw_protected, Keywords.kw_readonly, Keywords.kw_abstract, Keywords.kw_get, Keywords.kw_set, Keywords.kw_async, Keywords.kw_await)) return false; // Otherwise automatic semicolon insertion would trigger. if (Right.NestingLevel == 0 && (Left.Tok.getIdentifierInfo() || Left.isOneOf(tok::r_square, tok::r_paren)) && Right.isOneOf(tok::l_square, tok::l_paren)) d2653 1 a2653 4 // Don't wrap between ":" and "!" of a strict prop init ("field!: type;"). if (Left.is(tok::exclaim) && Right.is(tok::colon)) return false; if (Right.is(Keywords.kw_is)) d2705 2 a2706 1 Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon); a2712 2 if (Left.is(TT_InheritanceColon)) return Style.BreakInheritanceList == FormatStyle::BILS_AfterColon; d2714 1 a2714 1 return Style.BreakInheritanceList != FormatStyle::BILS_AfterColon; a2717 1 d2721 1 a2721 34 if (Left.is(tok::colon) && Left.isOneOf(TT_DictLiteral, TT_ObjCMethodExpr)) { if (Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) { if (!Style.AlwaysBreakBeforeMultilineStrings && Right.isStringLiteral()) return false; // Prevent cases like: // // submessage: // { key: valueeeeeeeeeeee } // // when the snippet does not fit into one line. // Prefer: // // submessage: { // key: valueeeeeeeeeeee // } // // instead, even if it is longer by one line. // // Note that this allows allows the "{" to go over the column limit // when the column limit is just between ":" and "{", but that does // not happen too often and alternative formattings in this case are // not much better. // // The code covers the cases: // // submessage: { ... } // submessage: < ... > // repeated: [ ... ] if (((Right.is(tok::l_brace) || Right.is(tok::less)) && Right.is(TT_DictLiteral)) || Right.is(TT_ArrayInitializerLSquare)) return false; } a2722 4 } if (Right.is(tok::r_square) && Right.MatchingParen && Right.MatchingParen->is(TT_ProtoExtensionLSquare)) return false; a2744 3 if (Left.is(tok::equal) && Right.is(tok::l_brace) && !Style.Cpp11BracedListStyle) return false; d2770 1 a2770 2 if (Right.is(tok::kw___attribute) || (Right.is(tok::l_square) && Right.is(TT_AttributeSquare))) d2789 1 a2789 2 if (Left.is(TT_InheritanceComma) && Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma) d2791 1 a2791 2 if (Right.is(TT_InheritanceComma) && Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma) a2810 3 if ((Left.is(TT_AttributeSquare) && Right.is(tok::l_square)) || (Left.is(tok::r_square) && Right.is(TT_AttributeSquare))) return false; d2823 1 a2823 1 llvm::errs() << "AnnotatedTokens(L=" << Line.Level << "):\n"; d2831 4 a2834 3 << " BK=" << Tok->BlockKind << " P=" << Tok->SplitPenalty << " Name=" << Tok->Tok.getName() << " L=" << Tok->TotalLength << " PPK=" << Tok->PackingKind << " FakeLParens="; a2837 1 llvm::errs() << " II=" << Tok->Tok.getIdentifierInfo(); @ 1.1.1.11.4.2 log @Mostly merge changes from HEAD upto 20200411 @ text @@ 1.1.1.11.2.1 log @Sync with HEAD @ text @d11 1 a11 1 /// This file implements a token annotator, i.e. creates d28 1 a28 16 /// Returns \c true if the token can be used as an identifier in /// an Objective-C \c @@selector, \c false otherwise. /// /// Because getFormattingLangOpts() always lexes source code as /// Objective-C++, C++ keywords like \c new and \c delete are /// lexed as tok::kw_*, not tok::identifier, even for Objective-C. /// /// For Objective-C and Objective-C++, both identifiers and keywords /// are valid inside @@selector(...) (or a macro which /// invokes @@selector(...)). So, we allow treat any identifier or /// keyword as a potential Objective-C selector component. static bool canBeObjCSelectorComponent(const FormatToken &Tok) { return Tok.Tok.getIdentifierInfo() != nullptr; } /// A parser that gathers additional information about tokens. d50 1 a50 1 const FormatToken &Previous = *CurrentToken->Previous; // The '<'. d82 1 a82 11 // In TT_Proto, we must distignuish between: // map // msg < item: data > // msg: < item: data > // In TT_TextProto, map does not occur. if (Style.Language == FormatStyle::LK_TextProto || (Style.Language == FormatStyle::LK_Proto && Left->Previous && Left->Previous->isOneOf(TT_SelectorName, TT_DictLiteral))) CurrentToken->Type = TT_DictLiteral; else CurrentToken->Type = TT_TemplateCloser; d134 4 a137 1 if (FormatToken *MaybeSel = Left->Previous) { d155 5 a159 5 (Left->Previous->isOneOf(tok::kw_static_assert, tok::kw_decltype, tok::kw_if, tok::kw_while, tok::l_paren, tok::comma) || Left->Previous->endsSequence(tok::kw_constexpr, tok::kw_if) || Left->Previous->is(TT_BinaryOperator))) { a202 7 // MightBeFunctionType and ProbablyFunctionType are used for // function pointer and reference types as well as Objective-C // block types: // // void (*FunctionPointer)(void); // void (&FunctionReference)(void); // void (^ObjCBlock)(void); d204 1 a204 2 bool ProbablyFunctionType = CurrentToken->isOneOf(tok::star, tok::amp, tok::caret); a208 1 FormatToken *PossibleObjCForInToken = nullptr; d240 1 a240 2 Left->Type = Left->Next->is(tok::caret) ? TT_ObjCBlockLParen : TT_FunctionTypeLParen; d294 1 a294 1 if (CurrentToken->isOneOf(tok::semi, tok::colon)) { d296 2 a297 9 if (PossibleObjCForInToken) { PossibleObjCForInToken->Type = TT_Unknown; PossibleObjCForInToken = nullptr; } } if (MightBeObjCForRangeLoop && CurrentToken->is(Keywords.kw_in)) { PossibleObjCForInToken = CurrentToken; PossibleObjCForInToken->Type = TT_ObjCForIn; } a312 26 bool isCpp11AttributeSpecifier(const FormatToken &Tok) { if (!Style.isCpp() || !Tok.startsSequence(tok::l_square, tok::l_square)) return false; const FormatToken *AttrTok = Tok.Next->Next; if (!AttrTok) return false; // C++17 '[[using ns: foo, bar(baz, blech)]]' // We assume nobody will name an ObjC variable 'using'. if (AttrTok->startsSequence(tok::kw_using, tok::identifier, tok::colon)) return true; if (AttrTok->isNot(tok::identifier)) return false; while (AttrTok && !AttrTok->startsSequence(tok::r_square, tok::r_square)) { // ObjC message send. We assume nobody will use : in a C++11 attribute // specifier parameter, although this is technically valid: // [[foo(:)]] if (AttrTok->is(tok::colon) || AttrTok->startsSequence(tok::identifier, tok::identifier)) return false; if (AttrTok->is(tok::ellipsis)) return true; AttrTok = AttrTok->Next; } return AttrTok && AttrTok->startsSequence(tok::r_square, tok::r_square); } d319 1 a319 2 // expression, it could the start of an Objective-C array literal, // or it could be a C++ attribute specifier [[foo::bar]]. d328 2 a329 1 Style.isCpp() && Parent && Parent->is(TT_TemplateCloser) && a332 3 bool IsCpp11AttributeSpecifier = isCpp11AttributeSpecifier(*Left) || Contexts.back().InCpp11AttributeSpecifier; d334 1 a334 1 !CppArrayTemplates && Style.isCpp() && !IsCpp11AttributeSpecifier && d336 1 a336 1 !CurrentToken->isOneOf(tok::l_brace, tok::r_square) && a340 1 // FIXME(bug 36976): ObjC return types shouldn't use TT_CastRParen. d346 1 a346 3 if (Left->isCppStructuredBinding(Style)) { Left->Type = TT_StructuredBindingLSquare; } else if (Left->is(TT_Unknown)) { a348 2 } else if (IsCpp11AttributeSpecifier) { Left->Type = TT_AttributeSquare; d360 6 a365 42 Style.Language == FormatStyle::LK_TextProto) { // Square braces in LK_Proto can either be message field attributes: // // optional Aaa aaa = 1 [ // (aaa) = aaa // ]; // // extensions 123 [ // (aaa) = aaa // ]; // // or text proto extensions (in options): // // option (Aaa.options) = { // [type.type/type] { // key: value // } // } // // or repeated fields (in options): // // option (Aaa.options) = { // keys: [ 1, 2, 3 ] // } // // In the first and the third case we want to spread the contents inside // the square braces; in the second we want to keep them inline. Left->Type = TT_ArrayInitializerLSquare; if (!Left->endsSequence(tok::l_square, tok::numeric_constant, tok::equal) && !Left->endsSequence(tok::l_square, tok::numeric_constant, tok::identifier) && !Left->endsSequence(tok::l_square, tok::colon, TT_SelectorName)) { Left->Type = TT_ProtoExtensionLSquare; BindingIncrease = 10; } } else if (!CppArrayTemplates && Parent && Parent->isOneOf(TT_BinaryOperator, TT_TemplateCloser, tok::at, tok::comma, tok::l_paren, tok::l_square, tok::question, tok::colon, tok::kw_return, // Should only be relevant to JavaScript: tok::kw_default)) { a374 4 if (Style.Language == FormatStyle::LK_JavaScript && Parent && Parent->is(TT_JsTypeColon)) Contexts.back().IsExpression = false; a375 1 Contexts.back().InCpp11AttributeSpecifier = IsCpp11AttributeSpecifier; d379 2 a380 4 if (IsCpp11AttributeSpecifier) CurrentToken->Type = TT_AttributeSquare; else if (CurrentToken->Next && CurrentToken->Next->is(tok::l_paren) && Left->is(TT_ObjCMethodExpr)) { a387 6 // If we haven't seen a colon yet, make sure the last identifier // before the r_square is tagged as a selector name component. if (!ColonFound && CurrentToken->Previous && CurrentToken->Previous->is(TT_Unknown) && canBeObjCSelectorComponent(*CurrentToken->Previous)) CurrentToken->Previous->Type = TT_SelectorName; a395 14 // FirstObjCSelectorName is set when a colon is found. This does // not work, however, when the method has no parameters. // Here, we set FirstObjCSelectorName when the end of the method call is // reached, in case it was not set already. if (!Contexts.back().FirstObjCSelectorName) { FormatToken* Previous = CurrentToken->getPreviousNonComment(); if (Previous && Previous->is(TT_SelectorName)) { Previous->ObjCSelectorNameParts = 1; Contexts.back().FirstObjCSelectorName = Previous; } } else { Left->ParameterCount = Contexts.back().FirstObjCSelectorName->ObjCSelectorNameParts; } d408 2 a409 8 if (IsCpp11AttributeSpecifier && CurrentToken->endsSequence(tok::colon, tok::identifier, tok::kw_using)) { // Remember that this is a [[using ns: foo]] C++ attribute, so we // don't add a space before the colon (unlike other colons). CurrentToken->Type = TT_AttributeColon; } else if (Left->isOneOf(TT_ArraySubscriptLSquare, TT_DesignatedInitializerLSquare)) { a413 1 // FIXME(bug 36976): ObjC return types shouldn't use TT_CastRParen. a441 3 if (Style.Language == FormatStyle::LK_JavaScript && Left->Previous && Left->Previous->is(TT_JsTypeColon)) Contexts.back().IsExpression = false; d455 7 a461 11 if (Previous->is(TT_JsTypeOptionalQuestion)) Previous = Previous->getPreviousNonComment(); if ((CurrentToken->is(tok::colon) && (!Contexts.back().ColonIsDictLiteral || !Style.isCpp())) || Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) { Left->Type = TT_DictLiteral; if (Previous->Tok.getIdentifierInfo() || Previous->is(tok::string_literal)) Previous->Type = TT_SelectorName; } a476 3 // For ObjC methods, the number of parameters is calculated differently as // method declarations have a different structure (the parameters are not // inside a bracket scope). a533 2 (!Contexts.back().IsExpression && Contexts.back().ContextKind == tok::l_brace) || // object type a535 1 Contexts.back().IsExpression = false; a551 5 // Ensure we tag all identifiers in method declarations as // TT_SelectorName. bool UnknownIdentifierInMethodDeclaration = Line.startsWith(TT_ObjCMethodSpecifier) && Tok->Previous->is(tok::identifier) && Tok->Previous->is(TT_Unknown); a552 1 // FIXME(bug 36976): ObjC return types shouldn't use TT_CastRParen. d557 1 a557 2 Contexts.back().LongestObjCSelectorName == 0 || UnknownIdentifierInMethodDeclaration) { d559 4 a564 7 else if (Tok->Previous->ColumnWidth > Contexts.back().LongestObjCSelectorName) Contexts.back().LongestObjCSelectorName = Tok->Previous->ColumnWidth; Tok->Previous->ParameterIndex = Contexts.back().FirstObjCSelectorName->ObjCSelectorNameParts; ++Contexts.back().FirstObjCSelectorName->ObjCSelectorNameParts; d577 2 a578 4 } else if (canBeObjCSelectorComponent(*Tok->Previous) && Tok->Next && (Tok->Next->isOneOf(tok::r_paren, tok::comma) || (canBeObjCSelectorComponent(*Tok->Next) && Tok->Next->Next && Tok->Next->Next->is(tok::colon)))) { d596 1 a596 2 if (Tok->is(tok::kw_if) && CurrentToken && CurrentToken->is(tok::kw_constexpr)) d606 1 a606 3 // x.for and {for: ...} if ((Tok->Previous && Tok->Previous->is(tok::period)) || (Tok->Next && Tok->Next->is(tok::colon))) d622 2 a623 1 if (Tok->Previous && Tok->Previous->is(tok::r_paren) && d646 1 a646 1 FormatToken *Previous = Tok->getPreviousNonComment(); d656 1 a656 9 // In TT_Proto, we must distignuish between: // map // msg < item: data > // msg: < item: data > // In TT_TextProto, map does not occur. if (Style.Language == FormatStyle::LK_TextProto || (Style.Language == FormatStyle::LK_Proto && Tok->Previous && Tok->Previous->isOneOf(TT_SelectorName, TT_DictLiteral))) { Tok->Type = TT_DictLiteral; d677 1 a677 2 if (Style.Language != FormatStyle::LK_TextProto) Tok->Type = TT_BinaryOperator; a679 3 if (Style.Language == FormatStyle::LK_TextProto || Style.Language == FormatStyle::LK_Proto) break; d686 1 a686 2 CurrentToken->Previous->isOneOf(TT_BinaryOperator, TT_UnaryOperator, tok::comma)) d743 2 a744 2 next(); while (CurrentToken) { d784 1 a784 1 next(); // '(' d786 1 a786 1 next(); // ')' d845 1 a845 1 Keywords.kw___has_include_next)) d858 1 a858 1 // definitions (github.com/google/protobuf) or missing "#" (either way we d936 5 a940 5 Tok.Next->Next && (Tok.Next->Next->TokenText == "module" || Tok.Next->Next->TokenText == "provide" || Tok.Next->Next->TokenText == "require" || Tok.Next->Next->TokenText == "forwardDeclare") && d974 1 a974 1 /// A struct to hold information valid in a specific context, e.g. a996 1 bool InCpp11AttributeSpecifier = false; d999 1 a999 1 /// Puts a new \c Context onto the stack \c Contexts for the lifetime d1057 2 a1058 1 } else if (Current.Previous && Current.Previous->is(TT_InheritanceColon)) { a1106 5 } else if (Current.is(tok::semi)) { // Reset FirstStartOfName after finding a semicolon so that a for loop // with multiple increment statements is not confused with a for loop // having multiple variable declarations. Contexts.back().FirstStartOfName = nullptr; d1116 4 a1119 4 Current.Type = determineStarAmpUsage(Current, Contexts.back().CanBeExpression && Contexts.back().IsExpression, Contexts.back().InTemplateArgument); d1138 1 a1138 3 (!Current.Previous || Current.Previous->isNot(tok::l_square)) && (!Current.is(tok::greater) && Style.Language != FormatStyle::LK_TextProto)) { a1196 11 } else if (canBeObjCSelectorComponent(Current) && // FIXME(bug 36976): ObjC return types shouldn't use TT_CastRParen. Current.Previous && Current.Previous->is(TT_CastRParen) && Current.Previous->MatchingParen && Current.Previous->MatchingParen->Previous && Current.Previous->MatchingParen->Previous->is( TT_ObjCMethodSpecifier)) { // This is the first part of an Objective-C selector name. (If there's no // colon after this, this is the only place which annotates the identifier // as a selector.) Current.Type = TT_SelectorName; d1223 1 a1223 1 /// Take a guess at whether \p Tok starts a name of a function or d1268 1 a1268 1 /// Determine whether ')' is ending a cast. d1365 1 a1365 1 /// Return the type of the given token assuming it is * or &. d1399 5 a1403 7 if (PrevToken->is(tok::r_paren) && PrevToken->MatchingParen) { FormatToken *TokenBeforeMatchingParen = PrevToken->MatchingParen->getPreviousNonComment(); if (TokenBeforeMatchingParen && TokenBeforeMatchingParen->isOneOf(tok::kw_typeof, tok::kw_decltype)) return TT_PointerOrReference; } d1440 4 a1443 2 if (PrevToken->isOneOf(TT_CastRParen, TT_UnaryOperator)) // This must be a sequence of leading unary operators. d1460 1 a1460 1 /// Determine whether ++/-- are pre- or post-increments/-decrements. d1489 1 a1489 1 /// Parses binary expressions by inserting fake parenthesis based on d1497 1 a1497 1 /// Parse expressions with the given operator precedence. d1584 1 a1584 1 /// Gets the precedence (+1) of the given token for binary operators d1592 1 a1592 1 (NextNonComment->isOneOf(TT_DictLiteral, TT_JsTypeColon) || d1643 1 a1643 1 /// Parse unary operator expressions and surround them with fake d1646 3 a1648 4 llvm::SmallVector Tokens; while (Current && Current->is(TT_UnaryOperator)) { Tokens.push_back(Current); next(); d1650 7 a1656 4 parse(PrecedenceArrowAndPeriod); for (FormatToken *Token : llvm::reverse(Tokens)) // The actual precedence doesn't matter. addFakeParenthesis(Token, prec::Unknown); d1706 9 a1714 12 // If the comment is currently aligned with the line immediately following // it, that's probably intentional and we should keep it. if (NextNonCommentLine && CommentLine && NextNonCommentLine->First->NewlinesBefore <= 1 && NextNonCommentLine->First->OriginalColumn == (*I)->First->OriginalColumn) { // Align comments for preprocessor lines with the # in column 0. // Otherwise, align with the next line. (*I)->Level = (NextNonCommentLine->Type == LT_PreprocessorDirective || NextNonCommentLine->Type == LT_ImportStatement) ? 0 : NextNonCommentLine->Level; d1725 1 a1725 1 for (const auto *Tok = Line.First; Tok != nullptr; Tok = Tok->Next) d1767 1 a1767 1 auto skipOperatorName = [](const FormatToken *Next) -> const FormatToken * { d1775 2 a1776 2 if (Next->Next && Next->Next->is(tok::l_square) && Next->Next->Next && Next->Next->Next->is(tok::r_square)) d1875 1 a1875 2 Line.First->IsMultiline ? Style.ColumnLimit : Line.FirstStartColumn + Line.First->ColumnWidth; d1944 2 a1945 14 // Reduce penalty for aligning ObjC method arguments using the colon // alignment as this is the canonical way (still prefer fitting everything // into one line if possible). Trying to fit a whole expression into one // line should not force other line breaks (e.g. when ObjC method // expression is a part of other expression). Current->SplitPenalty = splitPenalty(Line, *Current, InFunctionDecl); if (Style.Language == FormatStyle::LK_ObjC && Current->is(TT_SelectorName) && Current->ParameterIndex > 0) { if (Current->ParameterIndex == 1) Current->SplitPenalty += 5 * Current->BindingStrength; } else { Current->SplitPenalty += 20 * Current->BindingStrength; } d1965 1 a1965 1 LLVM_DEBUG({ printDebugInfo(Line); }); a2007 3 // Prefer breaking call chains (".foo") over empty "{}", "[]" or "()". if (Left.opensScope() && Right.closesScope()) return 200; d2022 1 a2022 1 TT_DesignatedInitializerLSquare, TT_AttributeSquare)) d2052 1 a2052 2 if (Left.isOneOf(TT_RangeBasedForLoopColon, TT_InheritanceColon, TT_CtorInitializerColon)) a2105 7 // In Objective-C type declarations, avoid breaking after the category's // open paren (we'll prefer breaking after the protocol list's opening // angle bracket, if present). if (Line.Type == LT_ObjCDecl && Left.is(tok::l_paren) && Left.Previous && Left.Previous->isOneOf(tok::identifier, tok::greater)) return 500; d2110 2 a2111 2 (Left.Previous->isOneOf(tok::kw_if, tok::kw_for) || Left.Previous->endsSequence(tok::kw_constexpr, tok::kw_if))) a2121 2 if (Left.is(tok::l_brace) && !Style.Cpp11BracedListStyle) return 19; d2131 1 a2131 1 return 50; a2146 2 if (Left.ClosesTemplateDeclaration) return Style.PenaltyBreakTemplateDeclaration; a2164 2 if (Left.is(Keywords.kw_assert) && Style.Language == FormatStyle::LK_Java) return true; d2181 3 a2183 6 if (Right.is(tok::less) && Line.Type == LT_ObjCDecl) { bool IsLightweightGeneric = Right.MatchingParen && Right.MatchingParen->Next && Right.MatchingParen->Next->is(tok::colon); return !IsLightweightGeneric && Style.ObjCSpaceBeforeProtocolList; } d2197 1 a2197 9 if (Left.is(tok::less) || Right.isOneOf(tok::greater, tok::less)) { if (Style.Language == FormatStyle::LK_TextProto || (Style.Language == FormatStyle::LK_Proto && (Left.is(TT_DictLiteral) || Right.is(TT_DictLiteral)))) { // Format empty list as `<>`. if (Left.is(tok::less) && Right.is(tok::greater)) return false; return !Style.Cpp11BracedListStyle; } a2198 1 } d2204 4 a2207 11 if (Right.is(TT_PointerOrReference)) { if (Left.is(tok::r_paren) && Line.MightBeFunctionDecl) { if (!Left.MatchingParen) return true; FormatToken *TokenBeforeMatchingParen = Left.MatchingParen->getPreviousNonComment(); if (!TokenBeforeMatchingParen || !TokenBeforeMatchingParen->isOneOf(tok::kw_typeof, tok::kw_decltype)) return true; } return (Left.Tok.isLiteral() || a2212 1 } a2230 9 const auto SpaceRequiredForArrayInitializerLSquare = [](const FormatToken &LSquareTok, const FormatStyle &Style) { return Style.SpacesInContainerLiterals || ((Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) && !Style.Cpp11BracedListStyle && LSquareTok.endsSequence(tok::l_square, tok::colon, TT_SelectorName)); }; d2232 4 a2235 5 return (Left.is(TT_ArrayInitializerLSquare) && Right.isNot(tok::r_square) && SpaceRequiredForArrayInitializerLSquare(Left, Style)) || (Left.isOneOf(TT_ArraySubscriptLSquare, TT_StructuredBindingLSquare) && Style.SpacesInSquareBrackets && Right.isNot(tok::r_square)); d2238 2 a2239 3 ((Right.MatchingParen->is(TT_ArrayInitializerLSquare) && SpaceRequiredForArrayInitializerLSquare(*Right.MatchingParen, Style)) || d2241 1 a2241 3 Right.MatchingParen->isOneOf(TT_ArraySubscriptLSquare, TT_StructuredBindingLSquare)) || Right.MatchingParen->is(TT_AttributeParen)); d2244 1 a2244 2 TT_DesignatedInitializerLSquare, TT_StructuredBindingLSquare, TT_AttributeSquare) && d2256 1 a2256 2 if ((Left.is(tok::r_paren) && Left.is(TT_AttributeParen)) || (Left.is(tok::r_square) && Left.is(TT_AttributeSquare))) d2290 1 a2290 1 // A.>>DoSomething(); a2293 7 if (Left.is(tok::l_brace) && Left.endsSequence(TT_DictLiteral, tok::at)) // Objective-C dictionary literal -> no space after opening brace. return false; if (Right.is(tok::r_brace) && Right.MatchingParen && Right.MatchingParen->endsSequence(TT_DictLiteral, tok::at)) // Objective-C dictionary literal -> no space before closing brace. return false; a2304 3 if (Right.is(tok::l_brace) && Right.BlockKind == BK_BracedInit && !Left.opensScope() && Style.SpaceBeforeCpp11BracedList) return true; a2315 13 // Slashes occur in text protocol extension syntax: [type/type] { ... }. if (Left.is(tok::slash) || Right.is(tok::slash)) return false; if (Left.MatchingParen && Left.MatchingParen->is(TT_ProtoExtensionLSquare) && Right.isOneOf(tok::l_brace, tok::less)) return !Style.Cpp11BracedListStyle; // A percent is probably part of a formatting specification, such as %lld. if (Left.is(tok::percent)) return false; // Preserve the existence of a space before a percent for cases like 0x%04x // and "%d %d" if (Left.is(tok::numeric_constant) && Right.is(tok::percent)) return Right.WhitespaceRange.getEnd() != Right.WhitespaceRange.getBegin(); d2320 2 a2321 2 if (Right.is(tok::l_paren) && Left.is(Keywords.kw_await) && Left.Previous && Left.Previous->is(tok::kw_for)) d2344 1 a2344 2 Left.isOneOf(Keywords.kw_function, Keywords.kw_yield, Keywords.kw_extends, Keywords.kw_implements)) d2346 4 a2349 14 if (Right.is(tok::l_paren)) { // JS methods can use some keywords as names (e.g. `delete()`). if (Line.MustBeDeclaration && Left.Tok.getIdentifierInfo()) return false; // Valid JS method names can include keywords, e.g. `foo.delete()` or // `bar.instanceof()`. Recognize call positions by preceding period. if (Left.Previous && Left.Previous->is(tok::period) && Left.Tok.getIdentifierInfo()) return false; // Additional unary JavaScript operators that need a space after. if (Left.isOneOf(tok::kw_throw, Keywords.kw_await, Keywords.kw_typeof, tok::kw_void)) return true; } d2353 1 a2353 2 // (e.g. as "const x of y" in a for loop), or after a destructuring // operation (const [x, y] of z, const {a, b} of c). d2355 1 a2355 2 (Left.Previous->Tok.is(tok::identifier) || Left.Previous->isOneOf(tok::r_square, tok::r_brace)))) && d2387 2 a2388 3 if (Left.is(TT_JsNonNullAssertion) && Right.isOneOf(Keywords.kw_as, Keywords.kw_in)) return true; // "x! as string", "x! in y" d2406 2 a2407 4 if (Left.is(tok::r_paren) && canBeObjCSelectorComponent(Right)) // Don't space between ')' and or ')' and 'new'. 'new' is not a // keyword in Objective-C, and '+ (instancetype)new;' is a standard class // method declaration. d2423 1 a2423 1 if (Right.is(TT_ObjCBlockLParen)) a2424 7 if (Right.is(TT_CtorInitializerColon)) return Style.SpaceBeforeCtorInitializerColon; if (Right.is(TT_InheritanceColon) && !Style.SpaceBeforeInheritanceColon) return false; if (Right.is(TT_RangeBasedForLoopColon) && !Style.SpaceBeforeRangeBasedForLoopColon) return false; a2436 2 if (Right.is(TT_AttributeColon)) return false; d2448 1 a2448 4 if (Left.is(tok::greater) && Right.is(tok::greater)) { if (Style.Language == FormatStyle::LK_TextProto || (Style.Language == FormatStyle::LK_Proto && Left.is(TT_DictLiteral))) return !Style.Cpp11BracedListStyle; a2450 1 } d2467 1 a2467 3 tok::kw___super, TT_TemplateCloser, TT_TemplateOpener)) || (Left.is(tok ::l_paren) && Style.SpacesInParentheses); a2469 8 // Space before TT_StructuredBindingLSquare. if (Right.is(TT_StructuredBindingLSquare)) return !Left.isOneOf(tok::amp, tok::ampamp) || Style.PointerAlignment != FormatStyle::PAS_Right; // Space before & or && following a TT_StructuredBindingLSquare. if (Right.Next && Right.Next->is(TT_StructuredBindingLSquare) && Right.isOneOf(tok::amp, tok::ampamp)) return Style.PointerAlignment != FormatStyle::PAS_Left; d2519 1 a2519 3 Line.startsWith(tok::kw_const, tok::kw_enum) || Line.startsWith(tok::kw_export, tok::kw_enum) || Line.startsWith(tok::kw_export, tok::kw_const, tok::kw_enum))) d2537 1 a2537 2 Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) { d2579 1 a2579 1 Style.AlwaysBreakTemplateDeclarations == FormatStyle::BTDS_Yes) d2590 1 a2590 1 if (Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma && d2592 1 a2592 1 return true; d2594 4 a2597 4 // Multiline raw string literals are special wrt. line breaks. The author // has made a deliberate choice and might have aligned the contents of the // string literal accordingly. Thus, we try keep existing line breaks. return Right.IsMultiline && Right.NewlinesBefore > 0; d2599 4 a2602 2 (Right.Previous->is(tok::less) && Right.Previous->Previous && Right.Previous->Previous->is(tok::equal))) && a2611 2 (Line.startsWith(tok::kw_typedef, tok::kw_enum) && Style.BraceWrapping.AfterEnum) || a2623 88 if (Right.is(TT_ProtoExtensionLSquare)) return true; // In text proto instances if a submessage contains at least 2 entries and at // least one of them is a submessage, like A { ... B { ... } ... }, // put all of the entries of A on separate lines by forcing the selector of // the submessage B to be put on a newline. // // Example: these can stay on one line: // a { scalar_1: 1 scalar_2: 2 } // a { b { key: value } } // // and these entries need to be on a new line even if putting them all in one // line is under the column limit: // a { // scalar: 1 // b { key: value } // } // // We enforce this by breaking before a submessage field that has previous // siblings, *and* breaking before a field that follows a submessage field. // // Be careful to exclude the case [proto.ext] { ... } since the `]` is // the TT_SelectorName there, but we don't want to break inside the brackets. // // Another edge case is @@submessage { key: value }, which is a common // substitution placeholder. In this case we want to keep `@@` and `submessage` // together. // // We ensure elsewhere that extensions are always on their own line. if ((Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) && Right.is(TT_SelectorName) && !Right.is(tok::r_square) && Right.Next) { // Keep `@@submessage` together in: // @@submessage { key: value } if (Right.Previous && Right.Previous->is(tok::at)) return false; // Look for the scope opener after selector in cases like: // selector { ... // selector: { ... // selector: @@base { ... FormatToken *LBrace = Right.Next; if (LBrace && LBrace->is(tok::colon)) { LBrace = LBrace->Next; if (LBrace && LBrace->is(tok::at)) { LBrace = LBrace->Next; if (LBrace) LBrace = LBrace->Next; } } if (LBrace && // The scope opener is one of {, [, <: // selector { ... } // selector [ ... ] // selector < ... > // // In case of selector { ... }, the l_brace is TT_DictLiteral. // In case of an empty selector {}, the l_brace is not TT_DictLiteral, // so we check for immediately following r_brace. ((LBrace->is(tok::l_brace) && (LBrace->is(TT_DictLiteral) || (LBrace->Next && LBrace->Next->is(tok::r_brace)))) || LBrace->is(TT_ArrayInitializerLSquare) || LBrace->is(tok::less))) { // If Left.ParameterCount is 0, then this submessage entry is not the // first in its parent submessage, and we want to break before this entry. // If Left.ParameterCount is greater than 0, then its parent submessage // might contain 1 or more entries and we want to break before this entry // if it contains at least 2 entries. We deal with this case later by // detecting and breaking before the next entry in the parent submessage. if (Left.ParameterCount == 0) return true; // However, if this submessage is the first entry in its parent // submessage, Left.ParameterCount might be 1 in some cases. // We deal with this case later by detecting an entry // following a closing paren of this submessage. } // If this is an entry immediately following a submessage, it will be // preceded by a closing paren of that submessage, like in: // left---. .---right // v v // sub: { ... } key: value // If there was a comment between `}` an `key` above, then `key` would be // put on a new line anyways. if (Left.isOneOf(tok::r_brace, tok::greater, tok::r_square)) return true; } d2642 6 a2647 11 NonComment->isOneOf( tok::kw_return, Keywords.kw_yield, tok::kw_continue, tok::kw_break, tok::kw_throw, Keywords.kw_interface, Keywords.kw_type, tok::kw_static, tok::kw_public, tok::kw_private, tok::kw_protected, Keywords.kw_readonly, Keywords.kw_abstract, Keywords.kw_get, Keywords.kw_set, Keywords.kw_async, Keywords.kw_await)) return false; // Otherwise automatic semicolon insertion would trigger. if (Right.NestingLevel == 0 && (Left.Tok.getIdentifierInfo() || Left.isOneOf(tok::r_square, tok::r_paren)) && Right.isOneOf(tok::l_square, tok::l_paren)) d2653 1 a2653 4 // Don't wrap between ":" and "!" of a strict prop init ("field!: type;"). if (Left.is(tok::exclaim) && Right.is(tok::colon)) return false; if (Right.is(Keywords.kw_is)) d2705 2 a2706 1 Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon); a2712 2 if (Left.is(TT_InheritanceColon)) return Style.BreakInheritanceList == FormatStyle::BILS_AfterColon; d2714 1 a2714 1 return Style.BreakInheritanceList != FormatStyle::BILS_AfterColon; a2717 1 d2721 1 a2721 34 if (Left.is(tok::colon) && Left.isOneOf(TT_DictLiteral, TT_ObjCMethodExpr)) { if (Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) { if (!Style.AlwaysBreakBeforeMultilineStrings && Right.isStringLiteral()) return false; // Prevent cases like: // // submessage: // { key: valueeeeeeeeeeee } // // when the snippet does not fit into one line. // Prefer: // // submessage: { // key: valueeeeeeeeeeee // } // // instead, even if it is longer by one line. // // Note that this allows allows the "{" to go over the column limit // when the column limit is just between ":" and "{", but that does // not happen too often and alternative formattings in this case are // not much better. // // The code covers the cases: // // submessage: { ... } // submessage: < ... > // repeated: [ ... ] if (((Right.is(tok::l_brace) || Right.is(tok::less)) && Right.is(TT_DictLiteral)) || Right.is(TT_ArrayInitializerLSquare)) return false; } a2722 4 } if (Right.is(tok::r_square) && Right.MatchingParen && Right.MatchingParen->is(TT_ProtoExtensionLSquare)) return false; a2744 3 if (Left.is(tok::equal) && Right.is(tok::l_brace) && !Style.Cpp11BracedListStyle) return false; d2770 1 a2770 2 if (Right.is(tok::kw___attribute) || (Right.is(tok::l_square) && Right.is(TT_AttributeSquare))) d2789 1 a2789 2 if (Left.is(TT_InheritanceComma) && Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma) d2791 1 a2791 2 if (Right.is(TT_InheritanceComma) && Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma) a2810 3 if ((Left.is(TT_AttributeSquare) && Right.is(tok::l_square)) || (Left.is(tok::r_square) && Right.is(TT_AttributeSquare))) return false; d2823 1 a2823 1 llvm::errs() << "AnnotatedTokens(L=" << Line.Level << "):\n"; d2831 4 a2834 3 << " BK=" << Tok->BlockKind << " P=" << Tok->SplitPenalty << " Name=" << Tok->Tok.getName() << " L=" << Tok->TotalLength << " PPK=" << Tok->PackingKind << " FakeLParens="; a2837 1 llvm::errs() << " II=" << Tok->Tok.getIdentifierInfo(); @ 1.1.1.12 log @Import clang r337282 from trunk @ text @d11 1 a11 1 /// This file implements a token annotator, i.e. creates d28 1 a28 16 /// Returns \c true if the token can be used as an identifier in /// an Objective-C \c @@selector, \c false otherwise. /// /// Because getFormattingLangOpts() always lexes source code as /// Objective-C++, C++ keywords like \c new and \c delete are /// lexed as tok::kw_*, not tok::identifier, even for Objective-C. /// /// For Objective-C and Objective-C++, both identifiers and keywords /// are valid inside @@selector(...) (or a macro which /// invokes @@selector(...)). So, we allow treat any identifier or /// keyword as a potential Objective-C selector component. static bool canBeObjCSelectorComponent(const FormatToken &Tok) { return Tok.Tok.getIdentifierInfo() != nullptr; } /// A parser that gathers additional information about tokens. d50 1 a50 1 const FormatToken &Previous = *CurrentToken->Previous; // The '<'. d82 1 a82 11 // In TT_Proto, we must distignuish between: // map // msg < item: data > // msg: < item: data > // In TT_TextProto, map does not occur. if (Style.Language == FormatStyle::LK_TextProto || (Style.Language == FormatStyle::LK_Proto && Left->Previous && Left->Previous->isOneOf(TT_SelectorName, TT_DictLiteral))) CurrentToken->Type = TT_DictLiteral; else CurrentToken->Type = TT_TemplateCloser; d134 4 a137 1 if (FormatToken *MaybeSel = Left->Previous) { d155 5 a159 5 (Left->Previous->isOneOf(tok::kw_static_assert, tok::kw_decltype, tok::kw_if, tok::kw_while, tok::l_paren, tok::comma) || Left->Previous->endsSequence(tok::kw_constexpr, tok::kw_if) || Left->Previous->is(TT_BinaryOperator))) { a202 7 // MightBeFunctionType and ProbablyFunctionType are used for // function pointer and reference types as well as Objective-C // block types: // // void (*FunctionPointer)(void); // void (&FunctionReference)(void); // void (^ObjCBlock)(void); d204 1 a204 2 bool ProbablyFunctionType = CurrentToken->isOneOf(tok::star, tok::amp, tok::caret); a208 1 FormatToken *PossibleObjCForInToken = nullptr; d240 1 a240 2 Left->Type = Left->Next->is(tok::caret) ? TT_ObjCBlockLParen : TT_FunctionTypeLParen; d294 1 a294 1 if (CurrentToken->isOneOf(tok::semi, tok::colon)) { d296 2 a297 9 if (PossibleObjCForInToken) { PossibleObjCForInToken->Type = TT_Unknown; PossibleObjCForInToken = nullptr; } } if (MightBeObjCForRangeLoop && CurrentToken->is(Keywords.kw_in)) { PossibleObjCForInToken = CurrentToken; PossibleObjCForInToken->Type = TT_ObjCForIn; } a312 26 bool isCpp11AttributeSpecifier(const FormatToken &Tok) { if (!Style.isCpp() || !Tok.startsSequence(tok::l_square, tok::l_square)) return false; const FormatToken *AttrTok = Tok.Next->Next; if (!AttrTok) return false; // C++17 '[[using ns: foo, bar(baz, blech)]]' // We assume nobody will name an ObjC variable 'using'. if (AttrTok->startsSequence(tok::kw_using, tok::identifier, tok::colon)) return true; if (AttrTok->isNot(tok::identifier)) return false; while (AttrTok && !AttrTok->startsSequence(tok::r_square, tok::r_square)) { // ObjC message send. We assume nobody will use : in a C++11 attribute // specifier parameter, although this is technically valid: // [[foo(:)]] if (AttrTok->is(tok::colon) || AttrTok->startsSequence(tok::identifier, tok::identifier)) return false; if (AttrTok->is(tok::ellipsis)) return true; AttrTok = AttrTok->Next; } return AttrTok && AttrTok->startsSequence(tok::r_square, tok::r_square); } d319 1 a319 2 // expression, it could the start of an Objective-C array literal, // or it could be a C++ attribute specifier [[foo::bar]]. d328 2 a329 1 Style.isCpp() && Parent && Parent->is(TT_TemplateCloser) && a332 3 bool IsCpp11AttributeSpecifier = isCpp11AttributeSpecifier(*Left) || Contexts.back().InCpp11AttributeSpecifier; d334 1 a334 1 !CppArrayTemplates && Style.isCpp() && !IsCpp11AttributeSpecifier && d336 1 a336 1 !CurrentToken->isOneOf(tok::l_brace, tok::r_square) && a340 1 // FIXME(bug 36976): ObjC return types shouldn't use TT_CastRParen. d346 1 a346 3 if (Left->isCppStructuredBinding(Style)) { Left->Type = TT_StructuredBindingLSquare; } else if (Left->is(TT_Unknown)) { a348 2 } else if (IsCpp11AttributeSpecifier) { Left->Type = TT_AttributeSquare; d360 6 a365 42 Style.Language == FormatStyle::LK_TextProto) { // Square braces in LK_Proto can either be message field attributes: // // optional Aaa aaa = 1 [ // (aaa) = aaa // ]; // // extensions 123 [ // (aaa) = aaa // ]; // // or text proto extensions (in options): // // option (Aaa.options) = { // [type.type/type] { // key: value // } // } // // or repeated fields (in options): // // option (Aaa.options) = { // keys: [ 1, 2, 3 ] // } // // In the first and the third case we want to spread the contents inside // the square braces; in the second we want to keep them inline. Left->Type = TT_ArrayInitializerLSquare; if (!Left->endsSequence(tok::l_square, tok::numeric_constant, tok::equal) && !Left->endsSequence(tok::l_square, tok::numeric_constant, tok::identifier) && !Left->endsSequence(tok::l_square, tok::colon, TT_SelectorName)) { Left->Type = TT_ProtoExtensionLSquare; BindingIncrease = 10; } } else if (!CppArrayTemplates && Parent && Parent->isOneOf(TT_BinaryOperator, TT_TemplateCloser, tok::at, tok::comma, tok::l_paren, tok::l_square, tok::question, tok::colon, tok::kw_return, // Should only be relevant to JavaScript: tok::kw_default)) { a374 4 if (Style.Language == FormatStyle::LK_JavaScript && Parent && Parent->is(TT_JsTypeColon)) Contexts.back().IsExpression = false; a375 1 Contexts.back().InCpp11AttributeSpecifier = IsCpp11AttributeSpecifier; d379 2 a380 4 if (IsCpp11AttributeSpecifier) CurrentToken->Type = TT_AttributeSquare; else if (CurrentToken->Next && CurrentToken->Next->is(tok::l_paren) && Left->is(TT_ObjCMethodExpr)) { a387 6 // If we haven't seen a colon yet, make sure the last identifier // before the r_square is tagged as a selector name component. if (!ColonFound && CurrentToken->Previous && CurrentToken->Previous->is(TT_Unknown) && canBeObjCSelectorComponent(*CurrentToken->Previous)) CurrentToken->Previous->Type = TT_SelectorName; a395 14 // FirstObjCSelectorName is set when a colon is found. This does // not work, however, when the method has no parameters. // Here, we set FirstObjCSelectorName when the end of the method call is // reached, in case it was not set already. if (!Contexts.back().FirstObjCSelectorName) { FormatToken* Previous = CurrentToken->getPreviousNonComment(); if (Previous && Previous->is(TT_SelectorName)) { Previous->ObjCSelectorNameParts = 1; Contexts.back().FirstObjCSelectorName = Previous; } } else { Left->ParameterCount = Contexts.back().FirstObjCSelectorName->ObjCSelectorNameParts; } d408 2 a409 8 if (IsCpp11AttributeSpecifier && CurrentToken->endsSequence(tok::colon, tok::identifier, tok::kw_using)) { // Remember that this is a [[using ns: foo]] C++ attribute, so we // don't add a space before the colon (unlike other colons). CurrentToken->Type = TT_AttributeColon; } else if (Left->isOneOf(TT_ArraySubscriptLSquare, TT_DesignatedInitializerLSquare)) { a413 1 // FIXME(bug 36976): ObjC return types shouldn't use TT_CastRParen. a441 3 if (Style.Language == FormatStyle::LK_JavaScript && Left->Previous && Left->Previous->is(TT_JsTypeColon)) Contexts.back().IsExpression = false; d455 7 a461 11 if (Previous->is(TT_JsTypeOptionalQuestion)) Previous = Previous->getPreviousNonComment(); if ((CurrentToken->is(tok::colon) && (!Contexts.back().ColonIsDictLiteral || !Style.isCpp())) || Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) { Left->Type = TT_DictLiteral; if (Previous->Tok.getIdentifierInfo() || Previous->is(tok::string_literal)) Previous->Type = TT_SelectorName; } a476 3 // For ObjC methods, the number of parameters is calculated differently as // method declarations have a different structure (the parameters are not // inside a bracket scope). a533 2 (!Contexts.back().IsExpression && Contexts.back().ContextKind == tok::l_brace) || // object type a535 1 Contexts.back().IsExpression = false; a551 5 // Ensure we tag all identifiers in method declarations as // TT_SelectorName. bool UnknownIdentifierInMethodDeclaration = Line.startsWith(TT_ObjCMethodSpecifier) && Tok->Previous->is(tok::identifier) && Tok->Previous->is(TT_Unknown); a552 1 // FIXME(bug 36976): ObjC return types shouldn't use TT_CastRParen. d557 1 a557 2 Contexts.back().LongestObjCSelectorName == 0 || UnknownIdentifierInMethodDeclaration) { d559 4 a564 7 else if (Tok->Previous->ColumnWidth > Contexts.back().LongestObjCSelectorName) Contexts.back().LongestObjCSelectorName = Tok->Previous->ColumnWidth; Tok->Previous->ParameterIndex = Contexts.back().FirstObjCSelectorName->ObjCSelectorNameParts; ++Contexts.back().FirstObjCSelectorName->ObjCSelectorNameParts; d577 2 a578 4 } else if (canBeObjCSelectorComponent(*Tok->Previous) && Tok->Next && (Tok->Next->isOneOf(tok::r_paren, tok::comma) || (canBeObjCSelectorComponent(*Tok->Next) && Tok->Next->Next && Tok->Next->Next->is(tok::colon)))) { d596 1 a596 2 if (Tok->is(tok::kw_if) && CurrentToken && CurrentToken->is(tok::kw_constexpr)) d606 1 a606 3 // x.for and {for: ...} if ((Tok->Previous && Tok->Previous->is(tok::period)) || (Tok->Next && Tok->Next->is(tok::colon))) d622 2 a623 1 if (Tok->Previous && Tok->Previous->is(tok::r_paren) && d646 1 a646 1 FormatToken *Previous = Tok->getPreviousNonComment(); d656 1 a656 9 // In TT_Proto, we must distignuish between: // map // msg < item: data > // msg: < item: data > // In TT_TextProto, map does not occur. if (Style.Language == FormatStyle::LK_TextProto || (Style.Language == FormatStyle::LK_Proto && Tok->Previous && Tok->Previous->isOneOf(TT_SelectorName, TT_DictLiteral))) { Tok->Type = TT_DictLiteral; d677 1 a677 2 if (Style.Language != FormatStyle::LK_TextProto) Tok->Type = TT_BinaryOperator; a679 3 if (Style.Language == FormatStyle::LK_TextProto || Style.Language == FormatStyle::LK_Proto) break; d686 1 a686 2 CurrentToken->Previous->isOneOf(TT_BinaryOperator, TT_UnaryOperator, tok::comma)) d743 2 a744 2 next(); while (CurrentToken) { d784 1 a784 1 next(); // '(' d786 1 a786 1 next(); // ')' d845 1 a845 1 Keywords.kw___has_include_next)) d858 1 a858 1 // definitions (github.com/google/protobuf) or missing "#" (either way we d936 5 a940 5 Tok.Next->Next && (Tok.Next->Next->TokenText == "module" || Tok.Next->Next->TokenText == "provide" || Tok.Next->Next->TokenText == "require" || Tok.Next->Next->TokenText == "forwardDeclare") && d974 1 a974 1 /// A struct to hold information valid in a specific context, e.g. a996 1 bool InCpp11AttributeSpecifier = false; d999 1 a999 1 /// Puts a new \c Context onto the stack \c Contexts for the lifetime d1057 2 a1058 1 } else if (Current.Previous && Current.Previous->is(TT_InheritanceColon)) { a1106 5 } else if (Current.is(tok::semi)) { // Reset FirstStartOfName after finding a semicolon so that a for loop // with multiple increment statements is not confused with a for loop // having multiple variable declarations. Contexts.back().FirstStartOfName = nullptr; d1116 4 a1119 4 Current.Type = determineStarAmpUsage(Current, Contexts.back().CanBeExpression && Contexts.back().IsExpression, Contexts.back().InTemplateArgument); d1138 1 a1138 3 (!Current.Previous || Current.Previous->isNot(tok::l_square)) && (!Current.is(tok::greater) && Style.Language != FormatStyle::LK_TextProto)) { a1196 11 } else if (canBeObjCSelectorComponent(Current) && // FIXME(bug 36976): ObjC return types shouldn't use TT_CastRParen. Current.Previous && Current.Previous->is(TT_CastRParen) && Current.Previous->MatchingParen && Current.Previous->MatchingParen->Previous && Current.Previous->MatchingParen->Previous->is( TT_ObjCMethodSpecifier)) { // This is the first part of an Objective-C selector name. (If there's no // colon after this, this is the only place which annotates the identifier // as a selector.) Current.Type = TT_SelectorName; d1223 1 a1223 1 /// Take a guess at whether \p Tok starts a name of a function or d1268 1 a1268 1 /// Determine whether ')' is ending a cast. d1365 1 a1365 1 /// Return the type of the given token assuming it is * or &. d1399 5 a1403 7 if (PrevToken->is(tok::r_paren) && PrevToken->MatchingParen) { FormatToken *TokenBeforeMatchingParen = PrevToken->MatchingParen->getPreviousNonComment(); if (TokenBeforeMatchingParen && TokenBeforeMatchingParen->isOneOf(tok::kw_typeof, tok::kw_decltype)) return TT_PointerOrReference; } d1440 4 a1443 2 if (PrevToken->isOneOf(TT_CastRParen, TT_UnaryOperator)) // This must be a sequence of leading unary operators. d1460 1 a1460 1 /// Determine whether ++/-- are pre- or post-increments/-decrements. d1489 1 a1489 1 /// Parses binary expressions by inserting fake parenthesis based on d1497 1 a1497 1 /// Parse expressions with the given operator precedence. d1584 1 a1584 1 /// Gets the precedence (+1) of the given token for binary operators d1592 1 a1592 1 (NextNonComment->isOneOf(TT_DictLiteral, TT_JsTypeColon) || d1643 1 a1643 1 /// Parse unary operator expressions and surround them with fake d1646 3 a1648 4 llvm::SmallVector Tokens; while (Current && Current->is(TT_UnaryOperator)) { Tokens.push_back(Current); next(); d1650 7 a1656 4 parse(PrecedenceArrowAndPeriod); for (FormatToken *Token : llvm::reverse(Tokens)) // The actual precedence doesn't matter. addFakeParenthesis(Token, prec::Unknown); d1706 9 a1714 12 // If the comment is currently aligned with the line immediately following // it, that's probably intentional and we should keep it. if (NextNonCommentLine && CommentLine && NextNonCommentLine->First->NewlinesBefore <= 1 && NextNonCommentLine->First->OriginalColumn == (*I)->First->OriginalColumn) { // Align comments for preprocessor lines with the # in column 0. // Otherwise, align with the next line. (*I)->Level = (NextNonCommentLine->Type == LT_PreprocessorDirective || NextNonCommentLine->Type == LT_ImportStatement) ? 0 : NextNonCommentLine->Level; d1725 1 a1725 1 for (const auto *Tok = Line.First; Tok != nullptr; Tok = Tok->Next) d1767 1 a1767 1 auto skipOperatorName = [](const FormatToken *Next) -> const FormatToken * { d1775 2 a1776 2 if (Next->Next && Next->Next->is(tok::l_square) && Next->Next->Next && Next->Next->Next->is(tok::r_square)) d1875 1 a1875 2 Line.First->IsMultiline ? Style.ColumnLimit : Line.FirstStartColumn + Line.First->ColumnWidth; d1944 2 a1945 14 // Reduce penalty for aligning ObjC method arguments using the colon // alignment as this is the canonical way (still prefer fitting everything // into one line if possible). Trying to fit a whole expression into one // line should not force other line breaks (e.g. when ObjC method // expression is a part of other expression). Current->SplitPenalty = splitPenalty(Line, *Current, InFunctionDecl); if (Style.Language == FormatStyle::LK_ObjC && Current->is(TT_SelectorName) && Current->ParameterIndex > 0) { if (Current->ParameterIndex == 1) Current->SplitPenalty += 5 * Current->BindingStrength; } else { Current->SplitPenalty += 20 * Current->BindingStrength; } d1965 1 a1965 1 LLVM_DEBUG({ printDebugInfo(Line); }); a2007 3 // Prefer breaking call chains (".foo") over empty "{}", "[]" or "()". if (Left.opensScope() && Right.closesScope()) return 200; d2022 1 a2022 1 TT_DesignatedInitializerLSquare, TT_AttributeSquare)) d2052 1 a2052 2 if (Left.isOneOf(TT_RangeBasedForLoopColon, TT_InheritanceColon, TT_CtorInitializerColon)) a2105 7 // In Objective-C type declarations, avoid breaking after the category's // open paren (we'll prefer breaking after the protocol list's opening // angle bracket, if present). if (Line.Type == LT_ObjCDecl && Left.is(tok::l_paren) && Left.Previous && Left.Previous->isOneOf(tok::identifier, tok::greater)) return 500; d2110 2 a2111 2 (Left.Previous->isOneOf(tok::kw_if, tok::kw_for) || Left.Previous->endsSequence(tok::kw_constexpr, tok::kw_if))) a2121 2 if (Left.is(tok::l_brace) && !Style.Cpp11BracedListStyle) return 19; d2131 1 a2131 1 return 50; a2146 2 if (Left.ClosesTemplateDeclaration) return Style.PenaltyBreakTemplateDeclaration; a2164 2 if (Left.is(Keywords.kw_assert) && Style.Language == FormatStyle::LK_Java) return true; d2181 3 a2183 6 if (Right.is(tok::less) && Line.Type == LT_ObjCDecl) { bool IsLightweightGeneric = Right.MatchingParen && Right.MatchingParen->Next && Right.MatchingParen->Next->is(tok::colon); return !IsLightweightGeneric && Style.ObjCSpaceBeforeProtocolList; } d2197 1 a2197 9 if (Left.is(tok::less) || Right.isOneOf(tok::greater, tok::less)) { if (Style.Language == FormatStyle::LK_TextProto || (Style.Language == FormatStyle::LK_Proto && (Left.is(TT_DictLiteral) || Right.is(TT_DictLiteral)))) { // Format empty list as `<>`. if (Left.is(tok::less) && Right.is(tok::greater)) return false; return !Style.Cpp11BracedListStyle; } a2198 1 } d2204 4 a2207 11 if (Right.is(TT_PointerOrReference)) { if (Left.is(tok::r_paren) && Line.MightBeFunctionDecl) { if (!Left.MatchingParen) return true; FormatToken *TokenBeforeMatchingParen = Left.MatchingParen->getPreviousNonComment(); if (!TokenBeforeMatchingParen || !TokenBeforeMatchingParen->isOneOf(tok::kw_typeof, tok::kw_decltype)) return true; } return (Left.Tok.isLiteral() || a2212 1 } a2230 9 const auto SpaceRequiredForArrayInitializerLSquare = [](const FormatToken &LSquareTok, const FormatStyle &Style) { return Style.SpacesInContainerLiterals || ((Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) && !Style.Cpp11BracedListStyle && LSquareTok.endsSequence(tok::l_square, tok::colon, TT_SelectorName)); }; d2232 4 a2235 5 return (Left.is(TT_ArrayInitializerLSquare) && Right.isNot(tok::r_square) && SpaceRequiredForArrayInitializerLSquare(Left, Style)) || (Left.isOneOf(TT_ArraySubscriptLSquare, TT_StructuredBindingLSquare) && Style.SpacesInSquareBrackets && Right.isNot(tok::r_square)); d2238 2 a2239 3 ((Right.MatchingParen->is(TT_ArrayInitializerLSquare) && SpaceRequiredForArrayInitializerLSquare(*Right.MatchingParen, Style)) || d2241 1 a2241 3 Right.MatchingParen->isOneOf(TT_ArraySubscriptLSquare, TT_StructuredBindingLSquare)) || Right.MatchingParen->is(TT_AttributeParen)); d2244 1 a2244 2 TT_DesignatedInitializerLSquare, TT_StructuredBindingLSquare, TT_AttributeSquare) && d2256 1 a2256 2 if ((Left.is(tok::r_paren) && Left.is(TT_AttributeParen)) || (Left.is(tok::r_square) && Left.is(TT_AttributeSquare))) d2290 1 a2290 1 // A.>>DoSomething(); a2293 7 if (Left.is(tok::l_brace) && Left.endsSequence(TT_DictLiteral, tok::at)) // Objective-C dictionary literal -> no space after opening brace. return false; if (Right.is(tok::r_brace) && Right.MatchingParen && Right.MatchingParen->endsSequence(TT_DictLiteral, tok::at)) // Objective-C dictionary literal -> no space before closing brace. return false; a2304 3 if (Right.is(tok::l_brace) && Right.BlockKind == BK_BracedInit && !Left.opensScope() && Style.SpaceBeforeCpp11BracedList) return true; a2315 13 // Slashes occur in text protocol extension syntax: [type/type] { ... }. if (Left.is(tok::slash) || Right.is(tok::slash)) return false; if (Left.MatchingParen && Left.MatchingParen->is(TT_ProtoExtensionLSquare) && Right.isOneOf(tok::l_brace, tok::less)) return !Style.Cpp11BracedListStyle; // A percent is probably part of a formatting specification, such as %lld. if (Left.is(tok::percent)) return false; // Preserve the existence of a space before a percent for cases like 0x%04x // and "%d %d" if (Left.is(tok::numeric_constant) && Right.is(tok::percent)) return Right.WhitespaceRange.getEnd() != Right.WhitespaceRange.getBegin(); d2320 2 a2321 2 if (Right.is(tok::l_paren) && Left.is(Keywords.kw_await) && Left.Previous && Left.Previous->is(tok::kw_for)) d2344 1 a2344 2 Left.isOneOf(Keywords.kw_function, Keywords.kw_yield, Keywords.kw_extends, Keywords.kw_implements)) d2346 4 a2349 14 if (Right.is(tok::l_paren)) { // JS methods can use some keywords as names (e.g. `delete()`). if (Line.MustBeDeclaration && Left.Tok.getIdentifierInfo()) return false; // Valid JS method names can include keywords, e.g. `foo.delete()` or // `bar.instanceof()`. Recognize call positions by preceding period. if (Left.Previous && Left.Previous->is(tok::period) && Left.Tok.getIdentifierInfo()) return false; // Additional unary JavaScript operators that need a space after. if (Left.isOneOf(tok::kw_throw, Keywords.kw_await, Keywords.kw_typeof, tok::kw_void)) return true; } d2353 1 a2353 2 // (e.g. as "const x of y" in a for loop), or after a destructuring // operation (const [x, y] of z, const {a, b} of c). d2355 1 a2355 2 (Left.Previous->Tok.is(tok::identifier) || Left.Previous->isOneOf(tok::r_square, tok::r_brace)))) && d2387 2 a2388 3 if (Left.is(TT_JsNonNullAssertion) && Right.isOneOf(Keywords.kw_as, Keywords.kw_in)) return true; // "x! as string", "x! in y" d2406 2 a2407 4 if (Left.is(tok::r_paren) && canBeObjCSelectorComponent(Right)) // Don't space between ')' and or ')' and 'new'. 'new' is not a // keyword in Objective-C, and '+ (instancetype)new;' is a standard class // method declaration. d2423 1 a2423 1 if (Right.is(TT_ObjCBlockLParen)) a2424 7 if (Right.is(TT_CtorInitializerColon)) return Style.SpaceBeforeCtorInitializerColon; if (Right.is(TT_InheritanceColon) && !Style.SpaceBeforeInheritanceColon) return false; if (Right.is(TT_RangeBasedForLoopColon) && !Style.SpaceBeforeRangeBasedForLoopColon) return false; a2436 2 if (Right.is(TT_AttributeColon)) return false; d2448 1 a2448 4 if (Left.is(tok::greater) && Right.is(tok::greater)) { if (Style.Language == FormatStyle::LK_TextProto || (Style.Language == FormatStyle::LK_Proto && Left.is(TT_DictLiteral))) return !Style.Cpp11BracedListStyle; a2450 1 } d2467 1 a2467 3 tok::kw___super, TT_TemplateCloser, TT_TemplateOpener)) || (Left.is(tok ::l_paren) && Style.SpacesInParentheses); a2469 8 // Space before TT_StructuredBindingLSquare. if (Right.is(TT_StructuredBindingLSquare)) return !Left.isOneOf(tok::amp, tok::ampamp) || Style.PointerAlignment != FormatStyle::PAS_Right; // Space before & or && following a TT_StructuredBindingLSquare. if (Right.Next && Right.Next->is(TT_StructuredBindingLSquare) && Right.isOneOf(tok::amp, tok::ampamp)) return Style.PointerAlignment != FormatStyle::PAS_Left; d2519 1 a2519 3 Line.startsWith(tok::kw_const, tok::kw_enum) || Line.startsWith(tok::kw_export, tok::kw_enum) || Line.startsWith(tok::kw_export, tok::kw_const, tok::kw_enum))) d2537 1 a2537 2 Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) { d2579 1 a2579 1 Style.AlwaysBreakTemplateDeclarations == FormatStyle::BTDS_Yes) d2590 1 a2590 1 if (Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma && d2592 1 a2592 1 return true; d2594 4 a2597 4 // Multiline raw string literals are special wrt. line breaks. The author // has made a deliberate choice and might have aligned the contents of the // string literal accordingly. Thus, we try keep existing line breaks. return Right.IsMultiline && Right.NewlinesBefore > 0; d2599 4 a2602 2 (Right.Previous->is(tok::less) && Right.Previous->Previous && Right.Previous->Previous->is(tok::equal))) && a2611 2 (Line.startsWith(tok::kw_typedef, tok::kw_enum) && Style.BraceWrapping.AfterEnum) || a2623 88 if (Right.is(TT_ProtoExtensionLSquare)) return true; // In text proto instances if a submessage contains at least 2 entries and at // least one of them is a submessage, like A { ... B { ... } ... }, // put all of the entries of A on separate lines by forcing the selector of // the submessage B to be put on a newline. // // Example: these can stay on one line: // a { scalar_1: 1 scalar_2: 2 } // a { b { key: value } } // // and these entries need to be on a new line even if putting them all in one // line is under the column limit: // a { // scalar: 1 // b { key: value } // } // // We enforce this by breaking before a submessage field that has previous // siblings, *and* breaking before a field that follows a submessage field. // // Be careful to exclude the case [proto.ext] { ... } since the `]` is // the TT_SelectorName there, but we don't want to break inside the brackets. // // Another edge case is @@submessage { key: value }, which is a common // substitution placeholder. In this case we want to keep `@@` and `submessage` // together. // // We ensure elsewhere that extensions are always on their own line. if ((Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) && Right.is(TT_SelectorName) && !Right.is(tok::r_square) && Right.Next) { // Keep `@@submessage` together in: // @@submessage { key: value } if (Right.Previous && Right.Previous->is(tok::at)) return false; // Look for the scope opener after selector in cases like: // selector { ... // selector: { ... // selector: @@base { ... FormatToken *LBrace = Right.Next; if (LBrace && LBrace->is(tok::colon)) { LBrace = LBrace->Next; if (LBrace && LBrace->is(tok::at)) { LBrace = LBrace->Next; if (LBrace) LBrace = LBrace->Next; } } if (LBrace && // The scope opener is one of {, [, <: // selector { ... } // selector [ ... ] // selector < ... > // // In case of selector { ... }, the l_brace is TT_DictLiteral. // In case of an empty selector {}, the l_brace is not TT_DictLiteral, // so we check for immediately following r_brace. ((LBrace->is(tok::l_brace) && (LBrace->is(TT_DictLiteral) || (LBrace->Next && LBrace->Next->is(tok::r_brace)))) || LBrace->is(TT_ArrayInitializerLSquare) || LBrace->is(tok::less))) { // If Left.ParameterCount is 0, then this submessage entry is not the // first in its parent submessage, and we want to break before this entry. // If Left.ParameterCount is greater than 0, then its parent submessage // might contain 1 or more entries and we want to break before this entry // if it contains at least 2 entries. We deal with this case later by // detecting and breaking before the next entry in the parent submessage. if (Left.ParameterCount == 0) return true; // However, if this submessage is the first entry in its parent // submessage, Left.ParameterCount might be 1 in some cases. // We deal with this case later by detecting an entry // following a closing paren of this submessage. } // If this is an entry immediately following a submessage, it will be // preceded by a closing paren of that submessage, like in: // left---. .---right // v v // sub: { ... } key: value // If there was a comment between `}` an `key` above, then `key` would be // put on a new line anyways. if (Left.isOneOf(tok::r_brace, tok::greater, tok::r_square)) return true; } d2642 6 a2647 11 NonComment->isOneOf( tok::kw_return, Keywords.kw_yield, tok::kw_continue, tok::kw_break, tok::kw_throw, Keywords.kw_interface, Keywords.kw_type, tok::kw_static, tok::kw_public, tok::kw_private, tok::kw_protected, Keywords.kw_readonly, Keywords.kw_abstract, Keywords.kw_get, Keywords.kw_set, Keywords.kw_async, Keywords.kw_await)) return false; // Otherwise automatic semicolon insertion would trigger. if (Right.NestingLevel == 0 && (Left.Tok.getIdentifierInfo() || Left.isOneOf(tok::r_square, tok::r_paren)) && Right.isOneOf(tok::l_square, tok::l_paren)) d2653 1 a2653 4 // Don't wrap between ":" and "!" of a strict prop init ("field!: type;"). if (Left.is(tok::exclaim) && Right.is(tok::colon)) return false; if (Right.is(Keywords.kw_is)) d2705 2 a2706 1 Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon); a2712 2 if (Left.is(TT_InheritanceColon)) return Style.BreakInheritanceList == FormatStyle::BILS_AfterColon; d2714 1 a2714 1 return Style.BreakInheritanceList != FormatStyle::BILS_AfterColon; a2717 1 d2721 1 a2721 34 if (Left.is(tok::colon) && Left.isOneOf(TT_DictLiteral, TT_ObjCMethodExpr)) { if (Style.Language == FormatStyle::LK_Proto || Style.Language == FormatStyle::LK_TextProto) { if (!Style.AlwaysBreakBeforeMultilineStrings && Right.isStringLiteral()) return false; // Prevent cases like: // // submessage: // { key: valueeeeeeeeeeee } // // when the snippet does not fit into one line. // Prefer: // // submessage: { // key: valueeeeeeeeeeee // } // // instead, even if it is longer by one line. // // Note that this allows allows the "{" to go over the column limit // when the column limit is just between ":" and "{", but that does // not happen too often and alternative formattings in this case are // not much better. // // The code covers the cases: // // submessage: { ... } // submessage: < ... > // repeated: [ ... ] if (((Right.is(tok::l_brace) || Right.is(tok::less)) && Right.is(TT_DictLiteral)) || Right.is(TT_ArrayInitializerLSquare)) return false; } a2722 4 } if (Right.is(tok::r_square) && Right.MatchingParen && Right.MatchingParen->is(TT_ProtoExtensionLSquare)) return false; a2744 3 if (Left.is(tok::equal) && Right.is(tok::l_brace) && !Style.Cpp11BracedListStyle) return false; d2770 1 a2770 2 if (Right.is(tok::kw___attribute) || (Right.is(tok::l_square) && Right.is(TT_AttributeSquare))) d2789 1 a2789 2 if (Left.is(TT_InheritanceComma) && Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma) d2791 1 a2791 2 if (Right.is(TT_InheritanceComma) && Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma) a2810 3 if ((Left.is(TT_AttributeSquare) && Right.is(tok::l_square)) || (Left.is(tok::r_square) && Right.is(TT_AttributeSquare))) return false; d2823 1 a2823 1 llvm::errs() << "AnnotatedTokens(L=" << Line.Level << "):\n"; d2831 4 a2834 3 << " BK=" << Tok->BlockKind << " P=" << Tok->SplitPenalty << " Name=" << Tok->Tok.getName() << " L=" << Tok->TotalLength << " PPK=" << Tok->PackingKind << " FakeLParens="; a2837 1 llvm::errs() << " II=" << Tok->Tok.getIdentifierInfo(); @ 1.1.1.13 log @Mark old LLVM instance as dead. @ text @@ 1.1.1.7.4.1 log @file TokenAnnotator.cpp was added on branch tls-maxphys on 2014-08-19 23:47:28 +0000 @ text @d1 1851 @ 1.1.1.7.4.2 log @Rebase to HEAD as of a few days ago. @ text @a0 1851 //===--- TokenAnnotator.cpp - Format C++ code -----------------------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// /// /// \file /// \brief This file implements a token annotator, i.e. creates /// \c AnnotatedTokens out of \c FormatTokens with required extra information. /// //===----------------------------------------------------------------------===// #include "TokenAnnotator.h" #include "clang/Basic/SourceManager.h" #include "llvm/Support/Debug.h" #define DEBUG_TYPE "format-token-annotator" namespace clang { namespace format { namespace { /// \brief A parser that gathers additional information about tokens. /// /// The \c TokenAnnotator tries to match parenthesis and square brakets and /// store a parenthesis levels. It also tries to resolve matching "<" and ">" /// into template parameter lists. class AnnotatingParser { public: AnnotatingParser(const FormatStyle &Style, AnnotatedLine &Line, IdentifierInfo &Ident_in) : Style(Style), Line(Line), CurrentToken(Line.First), KeywordVirtualFound(false), AutoFound(false), Ident_in(Ident_in) { Contexts.push_back(Context(tok::unknown, 1, /*IsExpression=*/false)); resetTokenMetadata(CurrentToken); } private: bool parseAngle() { if (!CurrentToken) return false; ScopedContextCreator ContextCreator(*this, tok::less, 10); FormatToken *Left = CurrentToken->Previous; Contexts.back().IsExpression = false; // If there's a template keyword before the opening angle bracket, this is a // template parameter, not an argument. Contexts.back().InTemplateArgument = Left->Previous && Left->Previous->Tok.isNot(tok::kw_template); while (CurrentToken) { if (CurrentToken->is(tok::greater)) { Left->MatchingParen = CurrentToken; CurrentToken->MatchingParen = Left; CurrentToken->Type = TT_TemplateCloser; next(); return true; } if (CurrentToken->isOneOf(tok::r_paren, tok::r_square, tok::r_brace, tok::question, tok::colon)) return false; // If a && or || is found and interpreted as a binary operator, this set // of angles is likely part of something like "a < b && c > d". If the // angles are inside an expression, the ||/&& might also be a binary // operator that was misinterpreted because we are parsing template // parameters. // FIXME: This is getting out of hand, write a decent parser. if (CurrentToken->Previous->isOneOf(tok::pipepipe, tok::ampamp) && CurrentToken->Previous->Type == TT_BinaryOperator && Contexts[Contexts.size() - 2].IsExpression && Line.First->isNot(tok::kw_template)) return false; updateParameterCount(Left, CurrentToken); if (!consumeToken()) return false; } return false; } bool parseParens(bool LookForDecls = false) { if (!CurrentToken) return false; ScopedContextCreator ContextCreator(*this, tok::l_paren, 1); // FIXME: This is a bit of a hack. Do better. Contexts.back().ColonIsForRangeExpr = Contexts.size() == 2 && Contexts[0].ColonIsForRangeExpr; bool StartsObjCMethodExpr = false; FormatToken *Left = CurrentToken->Previous; if (CurrentToken->is(tok::caret)) { // (^ can start a block type. Left->Type = TT_ObjCBlockLParen; } else if (FormatToken *MaybeSel = Left->Previous) { // @@selector( starts a selector. if (MaybeSel->isObjCAtKeyword(tok::objc_selector) && MaybeSel->Previous && MaybeSel->Previous->is(tok::at)) { StartsObjCMethodExpr = true; } } if (Left->Previous && (Left->Previous->isOneOf(tok::kw_static_assert, tok::kw_if, tok::kw_while, tok::l_paren, tok::comma) || Left->Previous->Type == TT_BinaryOperator)) { // static_assert, if and while usually contain expressions. Contexts.back().IsExpression = true; } else if (Line.InPPDirective && (!Left->Previous || (Left->Previous->isNot(tok::identifier) && Left->Previous->Type != TT_OverloadedOperator))) { Contexts.back().IsExpression = true; } else if (Left->Previous && Left->Previous->is(tok::r_square) && Left->Previous->MatchingParen && Left->Previous->MatchingParen->Type == TT_LambdaLSquare) { // This is a parameter list of a lambda expression. Contexts.back().IsExpression = false; } else if (Contexts[Contexts.size() - 2].CaretFound) { // This is the parameter list of an ObjC block. Contexts.back().IsExpression = false; } else if (Left->Previous && Left->Previous->is(tok::kw___attribute)) { Left->Type = TT_AttributeParen; } else if (Left->Previous && Left->Previous->IsForEachMacro) { // The first argument to a foreach macro is a declaration. Contexts.back().IsForEachMacro = true; Contexts.back().IsExpression = false; } if (StartsObjCMethodExpr) { Contexts.back().ColonIsObjCMethodExpr = true; Left->Type = TT_ObjCMethodExpr; } bool MightBeFunctionType = CurrentToken->is(tok::star); bool HasMultipleLines = false; bool HasMultipleParametersOnALine = false; while (CurrentToken) { // LookForDecls is set when "if (" has been seen. Check for // 'identifier' '*' 'identifier' followed by not '=' -- this // '*' has to be a binary operator but determineStarAmpUsage() will // categorize it as an unary operator, so set the right type here. if (LookForDecls && CurrentToken->Next) { FormatToken *Prev = CurrentToken->getPreviousNonComment(); if (Prev) { FormatToken *PrevPrev = Prev->getPreviousNonComment(); FormatToken *Next = CurrentToken->Next; if (PrevPrev && PrevPrev->is(tok::identifier) && Prev->isOneOf(tok::star, tok::amp, tok::ampamp) && CurrentToken->is(tok::identifier) && Next->isNot(tok::equal)) { Prev->Type = TT_BinaryOperator; LookForDecls = false; } } } if (CurrentToken->Previous->Type == TT_PointerOrReference && CurrentToken->Previous->Previous->isOneOf(tok::l_paren, tok::coloncolon)) MightBeFunctionType = true; if (CurrentToken->Previous->Type == TT_BinaryOperator) Contexts.back().IsExpression = true; if (CurrentToken->is(tok::r_paren)) { if (MightBeFunctionType && CurrentToken->Next && (CurrentToken->Next->is(tok::l_paren) || (CurrentToken->Next->is(tok::l_square) && !Contexts.back().IsExpression))) Left->Type = TT_FunctionTypeLParen; Left->MatchingParen = CurrentToken; CurrentToken->MatchingParen = Left; if (StartsObjCMethodExpr) { CurrentToken->Type = TT_ObjCMethodExpr; if (Contexts.back().FirstObjCSelectorName) { Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = Contexts.back().LongestObjCSelectorName; } } if (Left->Type == TT_AttributeParen) CurrentToken->Type = TT_AttributeParen; if (!HasMultipleLines) Left->PackingKind = PPK_Inconclusive; else if (HasMultipleParametersOnALine) Left->PackingKind = PPK_BinPacked; else Left->PackingKind = PPK_OnePerLine; next(); return true; } if (CurrentToken->isOneOf(tok::r_square, tok::r_brace)) return false; else if (CurrentToken->is(tok::l_brace)) Left->Type = TT_Unknown; // Not TT_ObjCBlockLParen if (CurrentToken->is(tok::comma) && CurrentToken->Next && !CurrentToken->Next->HasUnescapedNewline && !CurrentToken->Next->isTrailingComment()) HasMultipleParametersOnALine = true; if (CurrentToken->isOneOf(tok::kw_const, tok::kw_auto) || CurrentToken->isSimpleTypeSpecifier()) Contexts.back().IsExpression = false; FormatToken *Tok = CurrentToken; if (!consumeToken()) return false; updateParameterCount(Left, Tok); if (CurrentToken && CurrentToken->HasUnescapedNewline) HasMultipleLines = true; } return false; } bool parseSquare() { if (!CurrentToken) return false; // A '[' could be an index subscript (after an identifier or after // ')' or ']'), it could be the start of an Objective-C method // expression, or it could the the start of an Objective-C array literal. FormatToken *Left = CurrentToken->Previous; FormatToken *Parent = Left->getPreviousNonComment(); bool StartsObjCMethodExpr = Contexts.back().CanBeExpression && Left->Type != TT_LambdaLSquare && CurrentToken->isNot(tok::l_brace) && (!Parent || Parent->isOneOf(tok::colon, tok::l_square, tok::l_paren, tok::kw_return, tok::kw_throw) || Parent->isUnaryOperator() || Parent->Type == TT_ObjCForIn || Parent->Type == TT_CastRParen || getBinOpPrecedence(Parent->Tok.getKind(), true, true) > prec::Unknown); ScopedContextCreator ContextCreator(*this, tok::l_square, 10); Contexts.back().IsExpression = true; bool ColonFound = false; if (StartsObjCMethodExpr) { Contexts.back().ColonIsObjCMethodExpr = true; Left->Type = TT_ObjCMethodExpr; } else if (Parent && Parent->is(tok::at)) { Left->Type = TT_ArrayInitializerLSquare; } else if (Left->Type == TT_Unknown) { Left->Type = TT_ArraySubscriptLSquare; } while (CurrentToken) { if (CurrentToken->is(tok::r_square)) { if (CurrentToken->Next && CurrentToken->Next->is(tok::l_paren) && Left->Type == TT_ObjCMethodExpr) { // An ObjC method call is rarely followed by an open parenthesis. // FIXME: Do we incorrectly label ":" with this? StartsObjCMethodExpr = false; Left->Type = TT_Unknown; } if (StartsObjCMethodExpr && CurrentToken->Previous != Left) { CurrentToken->Type = TT_ObjCMethodExpr; // determineStarAmpUsage() thinks that '*' '[' is allocating an // array of pointers, but if '[' starts a selector then '*' is a // binary operator. if (Parent && Parent->Type == TT_PointerOrReference) Parent->Type = TT_BinaryOperator; } Left->MatchingParen = CurrentToken; CurrentToken->MatchingParen = Left; if (Contexts.back().FirstObjCSelectorName) { Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = Contexts.back().LongestObjCSelectorName; if (Left->BlockParameterCount > 1) Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = 0; } next(); return true; } if (CurrentToken->isOneOf(tok::r_paren, tok::r_brace)) return false; if (CurrentToken->is(tok::colon)) ColonFound = true; if (CurrentToken->is(tok::comma) && Style.Language != FormatStyle::LK_Proto && (Left->Type == TT_ArraySubscriptLSquare || (Left->Type == TT_ObjCMethodExpr && !ColonFound))) Left->Type = TT_ArrayInitializerLSquare; FormatToken* Tok = CurrentToken; if (!consumeToken()) return false; updateParameterCount(Left, Tok); } return false; } bool parseBrace() { if (CurrentToken) { FormatToken *Left = CurrentToken->Previous; if (Contexts.back().CaretFound) Left->Type = TT_ObjCBlockLBrace; Contexts.back().CaretFound = false; ScopedContextCreator ContextCreator(*this, tok::l_brace, 1); Contexts.back().ColonIsDictLiteral = true; if (Left->BlockKind == BK_BracedInit) Contexts.back().IsExpression = true; while (CurrentToken) { if (CurrentToken->is(tok::r_brace)) { Left->MatchingParen = CurrentToken; CurrentToken->MatchingParen = Left; next(); return true; } if (CurrentToken->isOneOf(tok::r_paren, tok::r_square)) return false; updateParameterCount(Left, CurrentToken); if (CurrentToken->is(tok::colon)) { if (CurrentToken->getPreviousNonComment()->is(tok::identifier)) CurrentToken->getPreviousNonComment()->Type = TT_SelectorName; Left->Type = TT_DictLiteral; } if (!consumeToken()) return false; } } return true; } void updateParameterCount(FormatToken *Left, FormatToken *Current) { if (Current->Type == TT_LambdaLSquare || (Current->is(tok::caret) && Current->Type == TT_UnaryOperator) || (Style.Language == FormatStyle::LK_JavaScript && Current->TokenText == "function")) { ++Left->BlockParameterCount; } if (Current->is(tok::comma)) { ++Left->ParameterCount; if (!Left->Role) Left->Role.reset(new CommaSeparatedList(Style)); Left->Role->CommaFound(Current); } else if (Left->ParameterCount == 0 && Current->isNot(tok::comment)) { Left->ParameterCount = 1; } } bool parseConditional() { while (CurrentToken) { if (CurrentToken->is(tok::colon)) { CurrentToken->Type = TT_ConditionalExpr; next(); return true; } if (!consumeToken()) return false; } return false; } bool parseTemplateDeclaration() { if (CurrentToken && CurrentToken->is(tok::less)) { CurrentToken->Type = TT_TemplateOpener; next(); if (!parseAngle()) return false; if (CurrentToken) CurrentToken->Previous->ClosesTemplateDeclaration = true; return true; } return false; } bool consumeToken() { FormatToken *Tok = CurrentToken; next(); switch (Tok->Tok.getKind()) { case tok::plus: case tok::minus: if (!Tok->Previous && Line.MustBeDeclaration) Tok->Type = TT_ObjCMethodSpecifier; break; case tok::colon: if (!Tok->Previous) return false; // Colons from ?: are handled in parseConditional(). if (Tok->Previous->is(tok::r_paren) && Contexts.size() == 1 && Line.First->isNot(tok::kw_case)) { Tok->Type = TT_CtorInitializerColon; } else if (Contexts.back().ColonIsDictLiteral) { Tok->Type = TT_DictLiteral; } else if (Contexts.back().ColonIsObjCMethodExpr || Line.First->Type == TT_ObjCMethodSpecifier) { Tok->Type = TT_ObjCMethodExpr; Tok->Previous->Type = TT_SelectorName; if (Tok->Previous->ColumnWidth > Contexts.back().LongestObjCSelectorName) { Contexts.back().LongestObjCSelectorName = Tok->Previous->ColumnWidth; } if (!Contexts.back().FirstObjCSelectorName) Contexts.back().FirstObjCSelectorName = Tok->Previous; } else if (Contexts.back().ColonIsForRangeExpr) { Tok->Type = TT_RangeBasedForLoopColon; } else if (CurrentToken && CurrentToken->is(tok::numeric_constant)) { Tok->Type = TT_BitFieldColon; } else if (Contexts.size() == 1 && !Line.First->isOneOf(tok::kw_enum, tok::kw_case)) { Tok->Type = TT_InheritanceColon; } else if (Contexts.back().ContextKind == tok::l_paren) { Tok->Type = TT_InlineASMColon; } break; case tok::kw_if: case tok::kw_while: if (CurrentToken && CurrentToken->is(tok::l_paren)) { next(); if (!parseParens(/*LookForDecls=*/true)) return false; } break; case tok::kw_for: Contexts.back().ColonIsForRangeExpr = true; next(); if (!parseParens()) return false; break; case tok::l_paren: if (!parseParens()) return false; if (Line.MustBeDeclaration && Contexts.size() == 1 && !Contexts.back().IsExpression && Line.First->Type != TT_ObjCProperty && (!Tok->Previous || Tok->Previous->isNot(tok::kw_decltype))) Line.MightBeFunctionDecl = true; break; case tok::l_square: if (!parseSquare()) return false; break; case tok::l_brace: if (!parseBrace()) return false; break; case tok::less: if (Tok->Previous && !Tok->Previous->Tok.isLiteral() && parseAngle()) Tok->Type = TT_TemplateOpener; else { Tok->Type = TT_BinaryOperator; CurrentToken = Tok; next(); } break; case tok::r_paren: case tok::r_square: return false; case tok::r_brace: // Lines can start with '}'. if (Tok->Previous) return false; break; case tok::greater: Tok->Type = TT_BinaryOperator; break; case tok::kw_operator: while (CurrentToken && !CurrentToken->isOneOf(tok::l_paren, tok::semi, tok::r_paren)) { if (CurrentToken->isOneOf(tok::star, tok::amp)) CurrentToken->Type = TT_PointerOrReference; consumeToken(); if (CurrentToken && CurrentToken->Previous->Type == TT_BinaryOperator) CurrentToken->Previous->Type = TT_OverloadedOperator; } if (CurrentToken) { CurrentToken->Type = TT_OverloadedOperatorLParen; if (CurrentToken->Previous->Type == TT_BinaryOperator) CurrentToken->Previous->Type = TT_OverloadedOperator; } break; case tok::question: parseConditional(); break; case tok::kw_template: parseTemplateDeclaration(); break; case tok::identifier: if (Line.First->is(tok::kw_for) && Tok->Tok.getIdentifierInfo() == &Ident_in) Tok->Type = TT_ObjCForIn; break; case tok::comma: if (Contexts.back().FirstStartOfName) Contexts.back().FirstStartOfName->PartOfMultiVariableDeclStmt = true; if (Contexts.back().InCtorInitializer) Tok->Type = TT_CtorInitializerComma; if (Contexts.back().IsForEachMacro) Contexts.back().IsExpression = true; break; default: break; } return true; } void parseIncludeDirective() { next(); if (CurrentToken && CurrentToken->is(tok::less)) { next(); while (CurrentToken) { if (CurrentToken->isNot(tok::comment) || CurrentToken->Next) CurrentToken->Type = TT_ImplicitStringLiteral; next(); } } else { while (CurrentToken) { if (CurrentToken->is(tok::string_literal)) // Mark these string literals as "implicit" literals, too, so that // they are not split or line-wrapped. CurrentToken->Type = TT_ImplicitStringLiteral; next(); } } } void parseWarningOrError() { next(); // We still want to format the whitespace left of the first token of the // warning or error. next(); while (CurrentToken) { CurrentToken->Type = TT_ImplicitStringLiteral; next(); } } void parsePragma() { next(); // Consume "pragma". if (CurrentToken && CurrentToken->TokenText == "mark") { next(); // Consume "mark". next(); // Consume first token (so we fix leading whitespace). while (CurrentToken) { CurrentToken->Type = TT_ImplicitStringLiteral; next(); } } } void parsePreprocessorDirective() { next(); if (!CurrentToken) return; if (CurrentToken->Tok.is(tok::numeric_constant)) { CurrentToken->SpacesRequiredBefore = 1; return; } // Hashes in the middle of a line can lead to any strange token // sequence. if (!CurrentToken->Tok.getIdentifierInfo()) return; switch (CurrentToken->Tok.getIdentifierInfo()->getPPKeywordID()) { case tok::pp_include: case tok::pp_import: parseIncludeDirective(); break; case tok::pp_error: case tok::pp_warning: parseWarningOrError(); break; case tok::pp_pragma: parsePragma(); break; case tok::pp_if: case tok::pp_elif: Contexts.back().IsExpression = true; parseLine(); break; default: break; } while (CurrentToken) next(); } public: LineType parseLine() { if (CurrentToken->is(tok::hash)) { parsePreprocessorDirective(); return LT_PreprocessorDirective; } // Directly allow to 'import ' to support protocol buffer // definitions (code.google.com/p/protobuf) or missing "#" (either way we // should not break the line). IdentifierInfo *Info = CurrentToken->Tok.getIdentifierInfo(); if (Info && Info->getPPKeywordID() == tok::pp_import && CurrentToken->Next && CurrentToken->Next->is(tok::string_literal)) parseIncludeDirective(); while (CurrentToken) { if (CurrentToken->is(tok::kw_virtual)) KeywordVirtualFound = true; if (!consumeToken()) return LT_Invalid; } if (KeywordVirtualFound) return LT_VirtualFunctionDecl; if (Line.First->Type == TT_ObjCMethodSpecifier) { if (Contexts.back().FirstObjCSelectorName) Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = Contexts.back().LongestObjCSelectorName; return LT_ObjCMethodDecl; } return LT_Other; } private: void resetTokenMetadata(FormatToken *Token) { if (!Token) return; // Reset token type in case we have already looked at it and then // recovered from an error (e.g. failure to find the matching >). if (CurrentToken->Type != TT_LambdaLSquare && CurrentToken->Type != TT_FunctionLBrace && CurrentToken->Type != TT_ImplicitStringLiteral && CurrentToken->Type != TT_RegexLiteral && CurrentToken->Type != TT_TrailingReturnArrow) CurrentToken->Type = TT_Unknown; CurrentToken->Role.reset(); CurrentToken->FakeLParens.clear(); CurrentToken->FakeRParens = 0; } void next() { if (CurrentToken) { determineTokenType(*CurrentToken); CurrentToken->BindingStrength = Contexts.back().BindingStrength; CurrentToken->NestingLevel = Contexts.size() - 1; CurrentToken = CurrentToken->Next; } resetTokenMetadata(CurrentToken); } /// \brief A struct to hold information valid in a specific context, e.g. /// a pair of parenthesis. struct Context { Context(tok::TokenKind ContextKind, unsigned BindingStrength, bool IsExpression) : ContextKind(ContextKind), BindingStrength(BindingStrength), LongestObjCSelectorName(0), ColonIsForRangeExpr(false), ColonIsDictLiteral(false), ColonIsObjCMethodExpr(false), FirstObjCSelectorName(nullptr), FirstStartOfName(nullptr), IsExpression(IsExpression), CanBeExpression(true), InTemplateArgument(false), InCtorInitializer(false), CaretFound(false), IsForEachMacro(false) {} tok::TokenKind ContextKind; unsigned BindingStrength; unsigned LongestObjCSelectorName; bool ColonIsForRangeExpr; bool ColonIsDictLiteral; bool ColonIsObjCMethodExpr; FormatToken *FirstObjCSelectorName; FormatToken *FirstStartOfName; bool IsExpression; bool CanBeExpression; bool InTemplateArgument; bool InCtorInitializer; bool CaretFound; bool IsForEachMacro; }; /// \brief Puts a new \c Context onto the stack \c Contexts for the lifetime /// of each instance. struct ScopedContextCreator { AnnotatingParser &P; ScopedContextCreator(AnnotatingParser &P, tok::TokenKind ContextKind, unsigned Increase) : P(P) { P.Contexts.push_back(Context(ContextKind, P.Contexts.back().BindingStrength + Increase, P.Contexts.back().IsExpression)); } ~ScopedContextCreator() { P.Contexts.pop_back(); } }; void determineTokenType(FormatToken &Current) { if (Current.getPrecedence() == prec::Assignment && !Line.First->isOneOf(tok::kw_template, tok::kw_using) && (!Current.Previous || Current.Previous->isNot(tok::kw_operator))) { Contexts.back().IsExpression = true; for (FormatToken *Previous = Current.Previous; Previous && !Previous->isOneOf(tok::comma, tok::semi); Previous = Previous->Previous) { if (Previous->isOneOf(tok::r_square, tok::r_paren)) Previous = Previous->MatchingParen; if ((Previous->Type == TT_BinaryOperator || Previous->Type == TT_UnaryOperator) && Previous->isOneOf(tok::star, tok::amp)) { Previous->Type = TT_PointerOrReference; } } } else if (Current.isOneOf(tok::kw_return, tok::kw_throw)) { Contexts.back().IsExpression = true; } else if (Current.is(tok::l_paren) && !Line.MustBeDeclaration && !Line.InPPDirective && (!Current.Previous || Current.Previous->isNot(tok::kw_decltype))) { bool ParametersOfFunctionType = Current.Previous && Current.Previous->is(tok::r_paren) && Current.Previous->MatchingParen && Current.Previous->MatchingParen->Type == TT_FunctionTypeLParen; bool IsForOrCatch = Current.Previous && Current.Previous->isOneOf(tok::kw_for, tok::kw_catch); Contexts.back().IsExpression = !ParametersOfFunctionType && !IsForOrCatch; } else if (Current.isOneOf(tok::r_paren, tok::greater, tok::comma)) { for (FormatToken *Previous = Current.Previous; Previous && Previous->isOneOf(tok::star, tok::amp); Previous = Previous->Previous) Previous->Type = TT_PointerOrReference; } else if (Current.Previous && Current.Previous->Type == TT_CtorInitializerColon) { Contexts.back().IsExpression = true; Contexts.back().InCtorInitializer = true; } else if (Current.is(tok::kw_new)) { Contexts.back().CanBeExpression = false; } else if (Current.is(tok::semi) || Current.is(tok::exclaim)) { // This should be the condition or increment in a for-loop. Contexts.back().IsExpression = true; } if (Current.Type == TT_Unknown) { // Line.MightBeFunctionDecl can only be true after the parentheses of a // function declaration have been found. In this case, 'Current' is a // trailing token of this declaration and thus cannot be a name. if (isStartOfName(Current) && !Line.MightBeFunctionDecl) { Contexts.back().FirstStartOfName = &Current; Current.Type = TT_StartOfName; } else if (Current.is(tok::kw_auto)) { AutoFound = true; } else if (Current.is(tok::arrow) && AutoFound && Line.MustBeDeclaration) { Current.Type = TT_TrailingReturnArrow; } else if (Current.isOneOf(tok::star, tok::amp, tok::ampamp)) { Current.Type = determineStarAmpUsage(Current, Contexts.back().CanBeExpression && Contexts.back().IsExpression, Contexts.back().InTemplateArgument); } else if (Current.isOneOf(tok::minus, tok::plus, tok::caret)) { Current.Type = determinePlusMinusCaretUsage(Current); if (Current.Type == TT_UnaryOperator && Current.is(tok::caret)) Contexts.back().CaretFound = true; } else if (Current.isOneOf(tok::minusminus, tok::plusplus)) { Current.Type = determineIncrementUsage(Current); } else if (Current.isOneOf(tok::exclaim, tok::tilde)) { Current.Type = TT_UnaryOperator; } else if (Current.is(tok::question)) { Current.Type = TT_ConditionalExpr; } else if (Current.isBinaryOperator() && (!Current.Previous || Current.Previous->isNot(tok::l_square))) { Current.Type = TT_BinaryOperator; } else if (Current.is(tok::comment)) { if (Current.TokenText.startswith("//")) Current.Type = TT_LineComment; else Current.Type = TT_BlockComment; } else if (Current.is(tok::r_paren)) { if (rParenEndsCast(Current)) Current.Type = TT_CastRParen; } else if (Current.is(tok::at) && Current.Next) { switch (Current.Next->Tok.getObjCKeywordID()) { case tok::objc_interface: case tok::objc_implementation: case tok::objc_protocol: Current.Type = TT_ObjCDecl; break; case tok::objc_property: Current.Type = TT_ObjCProperty; break; default: break; } } else if (Current.is(tok::period)) { FormatToken *PreviousNoComment = Current.getPreviousNonComment(); if (PreviousNoComment && PreviousNoComment->isOneOf(tok::comma, tok::l_brace)) Current.Type = TT_DesignatedInitializerPeriod; } else if (Current.isOneOf(tok::identifier, tok::kw_const) && Current.Previous && Current.Previous->isNot(tok::equal) && Line.MightBeFunctionDecl && Contexts.size() == 1) { // Line.MightBeFunctionDecl can only be true after the parentheses of a // function declaration have been found. Current.Type = TT_TrailingAnnotation; } } } /// \brief Take a guess at whether \p Tok starts a name of a function or /// variable declaration. /// /// This is a heuristic based on whether \p Tok is an identifier following /// something that is likely a type. bool isStartOfName(const FormatToken &Tok) { if (Tok.isNot(tok::identifier) || !Tok.Previous) return false; // Skip "const" as it does not have an influence on whether this is a name. FormatToken *PreviousNotConst = Tok.Previous; while (PreviousNotConst && PreviousNotConst->is(tok::kw_const)) PreviousNotConst = PreviousNotConst->Previous; if (!PreviousNotConst) return false; bool IsPPKeyword = PreviousNotConst->is(tok::identifier) && PreviousNotConst->Previous && PreviousNotConst->Previous->is(tok::hash); if (PreviousNotConst->Type == TT_TemplateCloser) return PreviousNotConst && PreviousNotConst->MatchingParen && PreviousNotConst->MatchingParen->Previous && PreviousNotConst->MatchingParen->Previous->isNot(tok::kw_template); if (PreviousNotConst->is(tok::r_paren) && PreviousNotConst->MatchingParen && PreviousNotConst->MatchingParen->Previous && PreviousNotConst->MatchingParen->Previous->is(tok::kw_decltype)) return true; return (!IsPPKeyword && PreviousNotConst->is(tok::identifier)) || PreviousNotConst->Type == TT_PointerOrReference || PreviousNotConst->isSimpleTypeSpecifier(); } /// \brief Determine whether ')' is ending a cast. bool rParenEndsCast(const FormatToken &Tok) { FormatToken *LeftOfParens = nullptr; if (Tok.MatchingParen) LeftOfParens = Tok.MatchingParen->getPreviousNonComment(); if (LeftOfParens && LeftOfParens->is(tok::r_paren)) return false; if (LeftOfParens && LeftOfParens->is(tok::r_square) && LeftOfParens->MatchingParen && LeftOfParens->MatchingParen->Type == TT_LambdaLSquare) return false; bool IsCast = false; bool ParensAreEmpty = Tok.Previous == Tok.MatchingParen; bool ParensAreType = !Tok.Previous || Tok.Previous->Type == TT_PointerOrReference || Tok.Previous->Type == TT_TemplateCloser || Tok.Previous->isSimpleTypeSpecifier(); bool ParensCouldEndDecl = Tok.Next && Tok.Next->isOneOf(tok::equal, tok::semi, tok::l_brace); bool IsSizeOfOrAlignOf = LeftOfParens && LeftOfParens->isOneOf(tok::kw_sizeof, tok::kw_alignof); if (ParensAreType && !ParensCouldEndDecl && !IsSizeOfOrAlignOf && ((Contexts.size() > 1 && Contexts[Contexts.size() - 2].IsExpression) || (Tok.Next && Tok.Next->isBinaryOperator()))) IsCast = true; else if (Tok.Next && Tok.Next->isNot(tok::string_literal) && (Tok.Next->Tok.isLiteral() || Tok.Next->isOneOf(tok::kw_sizeof, tok::kw_alignof))) IsCast = true; // If there is an identifier after the (), it is likely a cast, unless // there is also an identifier before the (). else if (LeftOfParens && (LeftOfParens->Tok.getIdentifierInfo() == nullptr || LeftOfParens->is(tok::kw_return)) && LeftOfParens->Type != TT_OverloadedOperator && LeftOfParens->isNot(tok::at) && LeftOfParens->Type != TT_TemplateCloser && Tok.Next) { if (Tok.Next->isOneOf(tok::identifier, tok::numeric_constant)) { IsCast = true; } else { // Use heuristics to recognize c style casting. FormatToken *Prev = Tok.Previous; if (Prev && Prev->isOneOf(tok::amp, tok::star)) Prev = Prev->Previous; if (Prev && Tok.Next && Tok.Next->Next) { bool NextIsUnary = Tok.Next->isUnaryOperator() || Tok.Next->isOneOf(tok::amp, tok::star); IsCast = NextIsUnary && Tok.Next->Next->isOneOf( tok::identifier, tok::numeric_constant); } for (; Prev != Tok.MatchingParen; Prev = Prev->Previous) { if (!Prev || !Prev->isOneOf(tok::kw_const, tok::identifier)) { IsCast = false; break; } } } } return IsCast && !ParensAreEmpty; } /// \brief Return the type of the given token assuming it is * or &. TokenType determineStarAmpUsage(const FormatToken &Tok, bool IsExpression, bool InTemplateArgument) { const FormatToken *PrevToken = Tok.getPreviousNonComment(); if (!PrevToken) return TT_UnaryOperator; const FormatToken *NextToken = Tok.getNextNonComment(); if (!NextToken || NextToken->is(tok::l_brace)) return TT_Unknown; if (PrevToken->is(tok::coloncolon) || (PrevToken->is(tok::l_paren) && !IsExpression)) return TT_PointerOrReference; if (PrevToken->isOneOf(tok::l_paren, tok::l_square, tok::l_brace, tok::comma, tok::semi, tok::kw_return, tok::colon, tok::equal, tok::kw_delete, tok::kw_sizeof) || PrevToken->Type == TT_BinaryOperator || PrevToken->Type == TT_ConditionalExpr || PrevToken->Type == TT_UnaryOperator || PrevToken->Type == TT_CastRParen) return TT_UnaryOperator; if (NextToken->is(tok::l_square) && NextToken->Type != TT_LambdaLSquare) return TT_PointerOrReference; if (NextToken->isOneOf(tok::kw_operator, tok::comma)) return TT_PointerOrReference; if (PrevToken->is(tok::r_paren) && PrevToken->MatchingParen && PrevToken->MatchingParen->Previous && PrevToken->MatchingParen->Previous->isOneOf(tok::kw_typeof, tok::kw_decltype)) return TT_PointerOrReference; if (PrevToken->Tok.isLiteral() || PrevToken->isOneOf(tok::r_paren, tok::r_square, tok::kw_true, tok::kw_false) || NextToken->Tok.isLiteral() || NextToken->isOneOf(tok::kw_true, tok::kw_false) || NextToken->isUnaryOperator() || // If we know we're in a template argument, there are no named // declarations. Thus, having an identifier on the right-hand side // indicates a binary operator. (InTemplateArgument && NextToken->Tok.isAnyIdentifier())) return TT_BinaryOperator; // This catches some cases where evaluation order is used as control flow: // aaa && aaa->f(); const FormatToken *NextNextToken = NextToken->getNextNonComment(); if (NextNextToken && NextNextToken->is(tok::arrow)) return TT_BinaryOperator; // It is very unlikely that we are going to find a pointer or reference type // definition on the RHS of an assignment. if (IsExpression) return TT_BinaryOperator; return TT_PointerOrReference; } TokenType determinePlusMinusCaretUsage(const FormatToken &Tok) { const FormatToken *PrevToken = Tok.getPreviousNonComment(); if (!PrevToken || PrevToken->Type == TT_CastRParen) return TT_UnaryOperator; // Use heuristics to recognize unary operators. if (PrevToken->isOneOf(tok::equal, tok::l_paren, tok::comma, tok::l_square, tok::question, tok::colon, tok::kw_return, tok::kw_case, tok::at, tok::l_brace)) return TT_UnaryOperator; // There can't be two consecutive binary operators. if (PrevToken->Type == TT_BinaryOperator) return TT_UnaryOperator; // Fall back to marking the token as binary operator. return TT_BinaryOperator; } /// \brief Determine whether ++/-- are pre- or post-increments/-decrements. TokenType determineIncrementUsage(const FormatToken &Tok) { const FormatToken *PrevToken = Tok.getPreviousNonComment(); if (!PrevToken || PrevToken->Type == TT_CastRParen) return TT_UnaryOperator; if (PrevToken->isOneOf(tok::r_paren, tok::r_square, tok::identifier)) return TT_TrailingUnaryOperator; return TT_UnaryOperator; } SmallVector Contexts; const FormatStyle &Style; AnnotatedLine &Line; FormatToken *CurrentToken; bool KeywordVirtualFound; bool AutoFound; IdentifierInfo &Ident_in; }; static int PrecedenceUnaryOperator = prec::PointerToMember + 1; static int PrecedenceArrowAndPeriod = prec::PointerToMember + 2; /// \brief Parses binary expressions by inserting fake parenthesis based on /// operator precedence. class ExpressionParser { public: ExpressionParser(AnnotatedLine &Line) : Current(Line.First) { // Skip leading "}", e.g. in "} else if (...) {". if (Current->is(tok::r_brace)) next(); } /// \brief Parse expressions with the given operatore precedence. void parse(int Precedence = 0) { // Skip 'return' and ObjC selector colons as they are not part of a binary // expression. while (Current && (Current->is(tok::kw_return) || (Current->is(tok::colon) && (Current->Type == TT_ObjCMethodExpr || Current->Type == TT_DictLiteral)))) next(); if (!Current || Precedence > PrecedenceArrowAndPeriod) return; // Conditional expressions need to be parsed separately for proper nesting. if (Precedence == prec::Conditional) { parseConditionalExpr(); return; } // Parse unary operators, which all have a higher precedence than binary // operators. if (Precedence == PrecedenceUnaryOperator) { parseUnaryOperator(); return; } FormatToken *Start = Current; FormatToken *LatestOperator = nullptr; unsigned OperatorIndex = 0; while (Current) { // Consume operators with higher precedence. parse(Precedence + 1); int CurrentPrecedence = getCurrentPrecedence(); if (Current && Current->Type == TT_SelectorName && Precedence == CurrentPrecedence) { if (LatestOperator) addFakeParenthesis(Start, prec::Level(Precedence)); Start = Current; } // At the end of the line or when an operator with higher precedence is // found, insert fake parenthesis and return. if (!Current || Current->closesScope() || (CurrentPrecedence != -1 && CurrentPrecedence < Precedence)) { if (LatestOperator) { LatestOperator->LastOperator = true; if (Precedence == PrecedenceArrowAndPeriod) { // Call expressions don't have a binary operator precedence. addFakeParenthesis(Start, prec::Unknown); } else { addFakeParenthesis(Start, prec::Level(Precedence)); } } return; } // Consume scopes: (), [], <> and {} if (Current->opensScope()) { while (Current && !Current->closesScope()) { next(); parse(); } next(); } else { // Operator found. if (CurrentPrecedence == Precedence) { LatestOperator = Current; Current->OperatorIndex = OperatorIndex; ++OperatorIndex; } next(); } } } private: /// \brief Gets the precedence (+1) of the given token for binary operators /// and other tokens that we treat like binary operators. int getCurrentPrecedence() { if (Current) { if (Current->Type == TT_ConditionalExpr) return prec::Conditional; else if (Current->is(tok::semi) || Current->Type == TT_InlineASMColon || Current->Type == TT_SelectorName) return 0; else if (Current->Type == TT_RangeBasedForLoopColon) return prec::Comma; else if (Current->Type == TT_BinaryOperator || Current->is(tok::comma)) return Current->getPrecedence(); else if (Current->isOneOf(tok::period, tok::arrow)) return PrecedenceArrowAndPeriod; } return -1; } void addFakeParenthesis(FormatToken *Start, prec::Level Precedence) { Start->FakeLParens.push_back(Precedence); if (Precedence > prec::Unknown) Start->StartsBinaryExpression = true; if (Current) { ++Current->Previous->FakeRParens; if (Precedence > prec::Unknown) Current->Previous->EndsBinaryExpression = true; } } /// \brief Parse unary operator expressions and surround them with fake /// parentheses if appropriate. void parseUnaryOperator() { if (!Current || Current->Type != TT_UnaryOperator) { parse(PrecedenceArrowAndPeriod); return; } FormatToken *Start = Current; next(); parseUnaryOperator(); // The actual precedence doesn't matter. addFakeParenthesis(Start, prec::Unknown); } void parseConditionalExpr() { FormatToken *Start = Current; parse(prec::LogicalOr); if (!Current || !Current->is(tok::question)) return; next(); parseConditionalExpr(); if (!Current || Current->Type != TT_ConditionalExpr) return; next(); parseConditionalExpr(); addFakeParenthesis(Start, prec::Conditional); } void next() { if (Current) Current = Current->Next; while (Current && Current->isTrailingComment()) Current = Current->Next; } FormatToken *Current; }; } // end anonymous namespace void TokenAnnotator::setCommentLineLevels(SmallVectorImpl &Lines) { const AnnotatedLine *NextNonCommentLine = nullptr; for (SmallVectorImpl::reverse_iterator I = Lines.rbegin(), E = Lines.rend(); I != E; ++I) { if (NextNonCommentLine && (*I)->First->is(tok::comment) && (*I)->First->Next == nullptr) (*I)->Level = NextNonCommentLine->Level; else NextNonCommentLine = (*I)->First->isNot(tok::r_brace) ? (*I) : nullptr; setCommentLineLevels((*I)->Children); } } void TokenAnnotator::annotate(AnnotatedLine &Line) { for (SmallVectorImpl::iterator I = Line.Children.begin(), E = Line.Children.end(); I != E; ++I) { annotate(**I); } AnnotatingParser Parser(Style, Line, Ident_in); Line.Type = Parser.parseLine(); if (Line.Type == LT_Invalid) return; ExpressionParser ExprParser(Line); ExprParser.parse(); if (Line.First->Type == TT_ObjCMethodSpecifier) Line.Type = LT_ObjCMethodDecl; else if (Line.First->Type == TT_ObjCDecl) Line.Type = LT_ObjCDecl; else if (Line.First->Type == TT_ObjCProperty) Line.Type = LT_ObjCProperty; Line.First->SpacesRequiredBefore = 1; Line.First->CanBreakBefore = Line.First->MustBreakBefore; } // This function heuristically determines whether 'Current' starts the name of a // function declaration. static bool isFunctionDeclarationName(const FormatToken &Current) { if (Current.Type != TT_StartOfName || Current.NestingLevel != 0 || Current.Previous->Type == TT_StartOfName) return false; const FormatToken *Next = Current.Next; for (; Next; Next = Next->Next) { if (Next->Type == TT_TemplateOpener) { Next = Next->MatchingParen; } else if (Next->is(tok::coloncolon)) { Next = Next->Next; if (!Next || !Next->is(tok::identifier)) return false; } else if (Next->is(tok::l_paren)) { break; } else { return false; } } if (!Next) return false; assert(Next->is(tok::l_paren)); if (Next->Next == Next->MatchingParen) return true; for (const FormatToken *Tok = Next->Next; Tok != Next->MatchingParen; Tok = Tok->Next) { if (Tok->is(tok::kw_const) || Tok->isSimpleTypeSpecifier() || Tok->Type == TT_PointerOrReference || Tok->Type == TT_StartOfName) return true; if (Tok->isOneOf(tok::l_brace, tok::string_literal) || Tok->Tok.isLiteral()) return false; } return false; } void TokenAnnotator::calculateFormattingInformation(AnnotatedLine &Line) { for (SmallVectorImpl::iterator I = Line.Children.begin(), E = Line.Children.end(); I != E; ++I) { calculateFormattingInformation(**I); } Line.First->TotalLength = Line.First->IsMultiline ? Style.ColumnLimit : Line.First->ColumnWidth; if (!Line.First->Next) return; FormatToken *Current = Line.First->Next; bool InFunctionDecl = Line.MightBeFunctionDecl; while (Current) { if (isFunctionDeclarationName(*Current)) Current->Type = TT_FunctionDeclarationName; if (Current->Type == TT_LineComment) { if (Current->Previous->BlockKind == BK_BracedInit && Current->Previous->opensScope()) Current->SpacesRequiredBefore = Style.Cpp11BracedListStyle ? 0 : 1; else Current->SpacesRequiredBefore = Style.SpacesBeforeTrailingComments; // If we find a trailing comment, iterate backwards to determine whether // it seems to relate to a specific parameter. If so, break before that // parameter to avoid changing the comment's meaning. E.g. don't move 'b' // to the previous line in: // SomeFunction(a, // b, // comment // c); if (!Current->HasUnescapedNewline) { for (FormatToken *Parameter = Current->Previous; Parameter; Parameter = Parameter->Previous) { if (Parameter->isOneOf(tok::comment, tok::r_brace)) break; if (Parameter->Previous && Parameter->Previous->is(tok::comma)) { if (Parameter->Previous->Type != TT_CtorInitializerComma && Parameter->HasUnescapedNewline) Parameter->MustBreakBefore = true; break; } } } } else if (Current->SpacesRequiredBefore == 0 && spaceRequiredBefore(Line, *Current)) { Current->SpacesRequiredBefore = 1; } Current->MustBreakBefore = Current->MustBreakBefore || mustBreakBefore(Line, *Current); if (Style.AlwaysBreakAfterDefinitionReturnType && InFunctionDecl && Current->Type == TT_FunctionDeclarationName && Line.Last->is(tok::l_brace)) // Only for definitions. Current->MustBreakBefore = true; Current->CanBreakBefore = Current->MustBreakBefore || canBreakBefore(Line, *Current); unsigned ChildSize = 0; if (Current->Previous->Children.size() == 1) { FormatToken &LastOfChild = *Current->Previous->Children[0]->Last; ChildSize = LastOfChild.isTrailingComment() ? Style.ColumnLimit : LastOfChild.TotalLength + 1; } if (Current->MustBreakBefore || Current->Previous->Children.size() > 1 || Current->IsMultiline) Current->TotalLength = Current->Previous->TotalLength + Style.ColumnLimit; else Current->TotalLength = Current->Previous->TotalLength + Current->ColumnWidth + ChildSize + Current->SpacesRequiredBefore; if (Current->Type == TT_CtorInitializerColon) InFunctionDecl = false; // FIXME: Only calculate this if CanBreakBefore is true once static // initializers etc. are sorted out. // FIXME: Move magic numbers to a better place. Current->SplitPenalty = 20 * Current->BindingStrength + splitPenalty(Line, *Current, InFunctionDecl); Current = Current->Next; } calculateUnbreakableTailLengths(Line); for (Current = Line.First; Current != nullptr; Current = Current->Next) { if (Current->Role) Current->Role->precomputeFormattingInfos(Current); } DEBUG({ printDebugInfo(Line); }); } void TokenAnnotator::calculateUnbreakableTailLengths(AnnotatedLine &Line) { unsigned UnbreakableTailLength = 0; FormatToken *Current = Line.Last; while (Current) { Current->UnbreakableTailLength = UnbreakableTailLength; if (Current->CanBreakBefore || Current->isOneOf(tok::comment, tok::string_literal)) { UnbreakableTailLength = 0; } else { UnbreakableTailLength += Current->ColumnWidth + Current->SpacesRequiredBefore; } Current = Current->Previous; } } unsigned TokenAnnotator::splitPenalty(const AnnotatedLine &Line, const FormatToken &Tok, bool InFunctionDecl) { const FormatToken &Left = *Tok.Previous; const FormatToken &Right = Tok; if (Left.is(tok::semi)) return 0; if (Left.is(tok::comma) || (Right.is(tok::identifier) && Right.Next && Right.Next->Type == TT_DictLiteral)) return 1; if (Right.is(tok::l_square)) { if (Style.Language == FormatStyle::LK_Proto) return 1; if (Right.Type != TT_ObjCMethodExpr && Right.Type != TT_LambdaLSquare) return 500; } if (Right.Type == TT_StartOfName || Right.Type == TT_FunctionDeclarationName || Right.is(tok::kw_operator)) { if (Line.First->is(tok::kw_for) && Right.PartOfMultiVariableDeclStmt) return 3; if (Left.Type == TT_StartOfName) return 20; if (InFunctionDecl && Right.NestingLevel == 0) return Style.PenaltyReturnTypeOnItsOwnLine; return 200; } if (Left.is(tok::equal) && Right.is(tok::l_brace)) return 150; if (Left.Type == TT_CastRParen) return 100; if (Left.is(tok::coloncolon) || (Right.is(tok::period) && Style.Language == FormatStyle::LK_Proto)) return 500; if (Left.isOneOf(tok::kw_class, tok::kw_struct)) return 5000; if (Left.Type == TT_RangeBasedForLoopColon || Left.Type == TT_InheritanceColon) return 2; if (Right.isMemberAccess()) { if (Left.is(tok::r_paren) && Left.MatchingParen && Left.MatchingParen->ParameterCount > 0) return 20; // Should be smaller than breaking at a nested comma. return 150; } if (Right.Type == TT_TrailingAnnotation && (!Right.Next || Right.Next->isNot(tok::l_paren))) { // Generally, breaking before a trailing annotation is bad unless it is // function-like. It seems to be especially preferable to keep standard // annotations (i.e. "const", "final" and "override") on the same line. // Use a slightly higher penalty after ")" so that annotations like // "const override" are kept together. bool is_short_annotation = Right.TokenText.size() < 10; return (Left.is(tok::r_paren) ? 100 : 120) + (is_short_annotation ? 50 : 0); } // In for-loops, prefer breaking at ',' and ';'. if (Line.First->is(tok::kw_for) && Left.is(tok::equal)) return 4; // In Objective-C method expressions, prefer breaking before "param:" over // breaking after it. if (Right.Type == TT_SelectorName) return 0; if (Left.is(tok::colon) && Left.Type == TT_ObjCMethodExpr) return Line.MightBeFunctionDecl ? 50 : 500; if (Left.is(tok::l_paren) && InFunctionDecl) return 100; if (Left.is(tok::equal) && InFunctionDecl) return 110; if (Right.is(tok::r_brace)) return 1; if (Left.opensScope()) return Left.ParameterCount > 1 ? Style.PenaltyBreakBeforeFirstCallParameter : 19; if (Right.is(tok::lessless)) { if (Left.is(tok::string_literal)) { StringRef Content = Left.TokenText; if (Content.startswith("\"")) Content = Content.drop_front(1); if (Content.endswith("\"")) Content = Content.drop_back(1); Content = Content.trim(); if (Content.size() > 1 && (Content.back() == ':' || Content.back() == '=')) return 25; } return 1; // Breaking at a << is really cheap. } if (Left.Type == TT_ConditionalExpr) return prec::Conditional; prec::Level Level = Left.getPrecedence(); if (Level != prec::Unknown) return Level; return 3; } bool TokenAnnotator::spaceRequiredBetween(const AnnotatedLine &Line, const FormatToken &Left, const FormatToken &Right) { if (Style.Language == FormatStyle::LK_Proto) { if (Right.is(tok::period) && (Left.TokenText == "optional" || Left.TokenText == "required" || Left.TokenText == "repeated")) return true; if (Right.is(tok::l_paren) && (Left.TokenText == "returns" || Left.TokenText == "option")) return true; } else if (Style.Language == FormatStyle::LK_JavaScript) { if (Left.TokenText == "var") return true; } if (Left.is(tok::kw_return) && Right.isNot(tok::semi)) return true; if (Style.ObjCSpaceAfterProperty && Line.Type == LT_ObjCProperty && Left.Tok.getObjCKeywordID() == tok::objc_property) return true; if (Right.is(tok::hashhash)) return Left.is(tok::hash); if (Left.isOneOf(tok::hashhash, tok::hash)) return Right.is(tok::hash); if (Left.is(tok::l_paren) && Right.is(tok::r_paren)) return Style.SpaceInEmptyParentheses; if (Left.is(tok::l_paren) || Right.is(tok::r_paren)) return (Right.Type == TT_CastRParen || (Left.MatchingParen && Left.MatchingParen->Type == TT_CastRParen)) ? Style.SpacesInCStyleCastParentheses : Style.SpacesInParentheses; if (Style.SpacesInAngles && ((Left.Type == TT_TemplateOpener) != (Right.Type == TT_TemplateCloser))) return true; if (Right.isOneOf(tok::semi, tok::comma)) return false; if (Right.is(tok::less) && (Left.isOneOf(tok::kw_template, tok::r_paren) || (Line.Type == LT_ObjCDecl && Style.ObjCSpaceBeforeProtocolList))) return true; if (Left.is(tok::arrow) || Right.is(tok::arrow)) return false; if (Left.isOneOf(tok::exclaim, tok::tilde)) return false; if (Left.is(tok::at) && Right.isOneOf(tok::identifier, tok::string_literal, tok::char_constant, tok::numeric_constant, tok::l_paren, tok::l_brace, tok::kw_true, tok::kw_false)) return false; if (Left.is(tok::coloncolon)) return false; if (Right.is(tok::coloncolon) && Left.isNot(tok::l_brace)) return (Left.is(tok::less) && Style.Standard == FormatStyle::LS_Cpp03) || !Left.isOneOf(tok::identifier, tok::greater, tok::l_paren, tok::r_paren, tok::less); if (Left.is(tok::less) || Right.isOneOf(tok::greater, tok::less)) return false; if (Right.is(tok::ellipsis)) return Left.Tok.isLiteral(); if (Left.is(tok::l_square) && Right.is(tok::amp)) return false; if (Right.Type == TT_PointerOrReference) return Left.Tok.isLiteral() || ((Left.Type != TT_PointerOrReference) && Left.isNot(tok::l_paren) && Style.PointerAlignment != FormatStyle::PAS_Left); if (Right.Type == TT_FunctionTypeLParen && Left.isNot(tok::l_paren) && (Left.Type != TT_PointerOrReference || Style.PointerAlignment != FormatStyle::PAS_Right)) return true; if (Left.Type == TT_PointerOrReference) return Right.Tok.isLiteral() || Right.Type == TT_BlockComment || ((Right.Type != TT_PointerOrReference) && Right.isNot(tok::l_paren) && Style.PointerAlignment != FormatStyle::PAS_Right && Left.Previous && !Left.Previous->isOneOf(tok::l_paren, tok::coloncolon)); if (Right.is(tok::star) && Left.is(tok::l_paren)) return false; if (Left.is(tok::l_square)) return Left.Type == TT_ArrayInitializerLSquare && Style.SpacesInContainerLiterals && Right.isNot(tok::r_square); if (Right.is(tok::r_square)) return Right.MatchingParen && Style.SpacesInContainerLiterals && Right.MatchingParen->Type == TT_ArrayInitializerLSquare; if (Right.is(tok::l_square) && Right.Type != TT_ObjCMethodExpr && Right.Type != TT_LambdaLSquare && Left.isNot(tok::numeric_constant) && Left.Type != TT_DictLiteral) return false; if (Left.is(tok::colon)) return Left.Type != TT_ObjCMethodExpr; if (Left.Type == TT_BlockComment) return !Left.TokenText.endswith("=*/"); if (Right.is(tok::l_paren)) { if (Left.is(tok::r_paren) && Left.Type == TT_AttributeParen) return true; return Line.Type == LT_ObjCDecl || Left.isOneOf(tok::kw_new, tok::kw_delete, tok::semi) || (Style.SpaceBeforeParens != FormatStyle::SBPO_Never && (Left.isOneOf(tok::kw_if, tok::kw_for, tok::kw_while, tok::kw_switch, tok::kw_catch, tok::kw_case) || Left.IsForEachMacro)) || (Style.SpaceBeforeParens == FormatStyle::SBPO_Always && (Left.is(tok::identifier) || Left.isFunctionLikeKeyword()) && Line.Type != LT_PreprocessorDirective); } if (Left.is(tok::at) && Right.Tok.getObjCKeywordID() != tok::objc_not_keyword) return false; if (Left.is(tok::l_brace) && Right.is(tok::r_brace)) return !Left.Children.empty(); // No spaces in "{}". if ((Left.is(tok::l_brace) && Left.BlockKind != BK_Block) || (Right.is(tok::r_brace) && Right.MatchingParen && Right.MatchingParen->BlockKind != BK_Block)) return !Style.Cpp11BracedListStyle; if (Right.Type == TT_UnaryOperator) return !Left.isOneOf(tok::l_paren, tok::l_square, tok::at) && (Left.isNot(tok::colon) || Left.Type != TT_ObjCMethodExpr); if ((Left.isOneOf(tok::identifier, tok::greater, tok::r_square, tok::r_paren) || Left.isSimpleTypeSpecifier()) && Right.is(tok::l_brace) && Right.getNextNonComment() && Right.BlockKind != BK_Block) return false; if (Left.is(tok::period) || Right.is(tok::period)) return false; if (Right.is(tok::hash) && Left.is(tok::identifier) && Left.TokenText == "L") return false; return true; } bool TokenAnnotator::spaceRequiredBefore(const AnnotatedLine &Line, const FormatToken &Tok) { if (Tok.Tok.getIdentifierInfo() && Tok.Previous->Tok.getIdentifierInfo()) return true; // Never ever merge two identifiers. if (Tok.Previous->Type == TT_ImplicitStringLiteral) return Tok.WhitespaceRange.getBegin() != Tok.WhitespaceRange.getEnd(); if (Line.Type == LT_ObjCMethodDecl) { if (Tok.Previous->Type == TT_ObjCMethodSpecifier) return true; if (Tok.Previous->is(tok::r_paren) && Tok.is(tok::identifier)) // Don't space between ')' and return false; } if (Line.Type == LT_ObjCProperty && (Tok.is(tok::equal) || Tok.Previous->is(tok::equal))) return false; if (Tok.Type == TT_TrailingReturnArrow || Tok.Previous->Type == TT_TrailingReturnArrow) return true; if (Tok.Previous->is(tok::comma)) return true; if (Tok.is(tok::comma)) return false; if (Tok.Type == TT_CtorInitializerColon || Tok.Type == TT_ObjCBlockLParen) return true; if (Tok.Previous->Tok.is(tok::kw_operator)) return Tok.is(tok::coloncolon); if (Tok.Type == TT_OverloadedOperatorLParen) return false; if (Tok.is(tok::colon)) return !Line.First->isOneOf(tok::kw_case, tok::kw_default) && Tok.getNextNonComment() && Tok.Type != TT_ObjCMethodExpr && !Tok.Previous->is(tok::question) && (Tok.Type != TT_DictLiteral || Style.SpacesInContainerLiterals); if (Tok.Previous->Type == TT_UnaryOperator || Tok.Previous->Type == TT_CastRParen) return Tok.Type == TT_BinaryOperator; if (Tok.Previous->is(tok::greater) && Tok.is(tok::greater)) { return Tok.Type == TT_TemplateCloser && Tok.Previous->Type == TT_TemplateCloser && (Style.Standard != FormatStyle::LS_Cpp11 || Style.SpacesInAngles); } if (Tok.isOneOf(tok::arrowstar, tok::periodstar) || Tok.Previous->isOneOf(tok::arrowstar, tok::periodstar)) return false; if (!Style.SpaceBeforeAssignmentOperators && Tok.getPrecedence() == prec::Assignment) return false; if ((Tok.Type == TT_BinaryOperator && !Tok.Previous->is(tok::l_paren)) || Tok.Previous->Type == TT_BinaryOperator || Tok.Previous->Type == TT_ConditionalExpr) return true; if (Tok.Previous->Type == TT_TemplateCloser && Tok.is(tok::l_paren)) return Style.SpaceBeforeParens == FormatStyle::SBPO_Always; if (Tok.is(tok::less) && Tok.Previous->isNot(tok::l_paren) && Line.First->is(tok::hash)) return true; if (Tok.Type == TT_TrailingUnaryOperator) return false; if (Tok.Previous->Type == TT_RegexLiteral) return false; return spaceRequiredBetween(Line, *Tok.Previous, Tok); } // Returns 'true' if 'Tok' is a brace we'd want to break before in Allman style. static bool isAllmanBrace(const FormatToken &Tok) { return Tok.is(tok::l_brace) && Tok.BlockKind == BK_Block && Tok.Type != TT_ObjCBlockLBrace && Tok.Type != TT_DictLiteral; } bool TokenAnnotator::mustBreakBefore(const AnnotatedLine &Line, const FormatToken &Right) { const FormatToken &Left = *Right.Previous; if (Right.NewlinesBefore > 1) return true; if (Right.is(tok::comment)) { return Right.Previous->BlockKind != BK_BracedInit && Right.Previous->Type != TT_CtorInitializerColon && (Right.NewlinesBefore > 0 && Right.HasUnescapedNewline); } else if (Right.Previous->isTrailingComment() || (Right.isStringLiteral() && Right.Previous->isStringLiteral())) { return true; } else if (Right.Previous->IsUnterminatedLiteral) { return true; } else if (Right.is(tok::lessless) && Right.Next && Right.Previous->is(tok::string_literal) && Right.Next->is(tok::string_literal)) { return true; } else if (Right.Previous->ClosesTemplateDeclaration && Right.Previous->MatchingParen && Right.Previous->MatchingParen->NestingLevel == 0 && Style.AlwaysBreakTemplateDeclarations) { return true; } else if ((Right.Type == TT_CtorInitializerComma || Right.Type == TT_CtorInitializerColon) && Style.BreakConstructorInitializersBeforeComma && !Style.ConstructorInitializerAllOnOneLineOrOnePerLine) { return true; } else if (Right.is(tok::string_literal) && Right.TokenText.startswith("R\"")) { // Raw string literals are special wrt. line breaks. The author has made a // deliberate choice and might have aligned the contents of the string // literal accordingly. Thus, we try keep existing line breaks. return Right.NewlinesBefore > 0; } else if (Right.Previous->is(tok::l_brace) && Right.NestingLevel == 1 && Style.Language == FormatStyle::LK_Proto) { // Don't enums onto single lines in protocol buffers. return true; } else if (isAllmanBrace(Left) || isAllmanBrace(Right)) { return Style.BreakBeforeBraces == FormatStyle::BS_Allman || Style.BreakBeforeBraces == FormatStyle::BS_GNU; } else if (Style.Language == FormatStyle::LK_Proto && Left.isNot(tok::l_brace) && Right.Type == TT_SelectorName) { return true; } // If the last token before a '}' is a comma or a comment, the intention is to // insert a line break after it in order to make shuffling around entries // easier. const FormatToken *BeforeClosingBrace = nullptr; if (Left.is(tok::l_brace) && Left.MatchingParen) BeforeClosingBrace = Left.MatchingParen->Previous; else if (Right.is(tok::r_brace)) BeforeClosingBrace = Right.Previous; if (BeforeClosingBrace && BeforeClosingBrace->isOneOf(tok::comma, tok::comment)) return true; if (Style.Language == FormatStyle::LK_JavaScript) { // FIXME: This might apply to other languages and token kinds. if (Right.is(tok::char_constant) && Left.is(tok::plus) && Left.Previous && Left.Previous->is(tok::char_constant)) return true; } return false; } bool TokenAnnotator::canBreakBefore(const AnnotatedLine &Line, const FormatToken &Right) { const FormatToken &Left = *Right.Previous; if (Left.is(tok::at)) return false; if (Left.Tok.getObjCKeywordID() == tok::objc_interface) return false; if (Right.Type == TT_StartOfName || Right.Type == TT_FunctionDeclarationName || Right.is(tok::kw_operator)) return true; if (Right.isTrailingComment()) // We rely on MustBreakBefore being set correctly here as we should not // change the "binding" behavior of a comment. // The first comment in a braced lists is always interpreted as belonging to // the first list element. Otherwise, it should be placed outside of the // list. return Left.BlockKind == BK_BracedInit; if (Left.is(tok::question) && Right.is(tok::colon)) return false; if (Right.Type == TT_ConditionalExpr || Right.is(tok::question)) return Style.BreakBeforeTernaryOperators; if (Left.Type == TT_ConditionalExpr || Left.is(tok::question)) return !Style.BreakBeforeTernaryOperators; if (Right.Type == TT_InheritanceColon) return true; if (Right.is(tok::colon) && (Right.Type != TT_CtorInitializerColon && Right.Type != TT_InlineASMColon)) return false; if (Left.is(tok::colon) && (Left.Type == TT_DictLiteral || Left.Type == TT_ObjCMethodExpr)) return true; if (Right.Type == TT_SelectorName) return true; if (Left.is(tok::r_paren) && Line.Type == LT_ObjCProperty) return true; if (Left.ClosesTemplateDeclaration) return true; if (Right.Type == TT_RangeBasedForLoopColon || Right.Type == TT_OverloadedOperatorLParen || Right.Type == TT_OverloadedOperator) return false; if (Left.Type == TT_RangeBasedForLoopColon) return true; if (Right.Type == TT_RangeBasedForLoopColon) return false; if (Left.Type == TT_PointerOrReference || Left.Type == TT_TemplateCloser || Left.Type == TT_UnaryOperator || Left.is(tok::kw_operator)) return false; if (Left.is(tok::equal) && Line.Type == LT_VirtualFunctionDecl) return false; if (Left.is(tok::l_paren) && Left.Type == TT_AttributeParen) return false; if (Left.is(tok::l_paren) && Left.Previous && (Left.Previous->Type == TT_BinaryOperator || Left.Previous->Type == TT_CastRParen || Left.Previous->is(tok::kw_if))) return false; if (Right.Type == TT_ImplicitStringLiteral) return false; if (Right.is(tok::r_paren) || Right.Type == TT_TemplateCloser) return false; // We only break before r_brace if there was a corresponding break before // the l_brace, which is tracked by BreakBeforeClosingBrace. if (Right.is(tok::r_brace)) return Right.MatchingParen && Right.MatchingParen->BlockKind == BK_Block; // Allow breaking after a trailing annotation, e.g. after a method // declaration. if (Left.Type == TT_TrailingAnnotation) return !Right.isOneOf(tok::l_brace, tok::semi, tok::equal, tok::l_paren, tok::less, tok::coloncolon); if (Right.is(tok::kw___attribute)) return true; if (Left.is(tok::identifier) && Right.is(tok::string_literal)) return true; if (Right.is(tok::identifier) && Right.Next && Right.Next->Type == TT_DictLiteral) return true; if (Left.Type == TT_CtorInitializerComma && Style.BreakConstructorInitializersBeforeComma) return false; if (Right.Type == TT_CtorInitializerComma && Style.BreakConstructorInitializersBeforeComma) return true; if (Left.is(tok::greater) && Right.is(tok::greater) && Left.Type != TT_TemplateCloser) return false; if (Right.Type == TT_BinaryOperator && Style.BreakBeforeBinaryOperators) return true; if (Left.Type == TT_ArrayInitializerLSquare) return true; return (Left.isBinaryOperator() && !Left.isOneOf(tok::arrowstar, tok::lessless) && !Style.BreakBeforeBinaryOperators) || Left.isOneOf(tok::comma, tok::coloncolon, tok::semi, tok::l_brace, tok::kw_class, tok::kw_struct) || Right.isMemberAccess() || Right.isOneOf(tok::lessless, tok::colon, tok::l_square, tok::at, tok::kw_typename) || (Left.is(tok::r_paren) && Right.isOneOf(tok::identifier, tok::kw_const)) || (Left.is(tok::l_paren) && !Right.is(tok::r_paren)); } void TokenAnnotator::printDebugInfo(const AnnotatedLine &Line) { llvm::errs() << "AnnotatedTokens:\n"; const FormatToken *Tok = Line.First; while (Tok) { llvm::errs() << " M=" << Tok->MustBreakBefore << " C=" << Tok->CanBreakBefore << " T=" << Tok->Type << " S=" << Tok->SpacesRequiredBefore << " B=" << Tok->BlockParameterCount << " P=" << Tok->SplitPenalty << " Name=" << Tok->Tok.getName() << " L=" << Tok->TotalLength << " PPK=" << Tok->PackingKind << " FakeLParens="; for (unsigned i = 0, e = Tok->FakeLParens.size(); i != e; ++i) llvm::errs() << Tok->FakeLParens[i] << "/"; llvm::errs() << " FakeRParens=" << Tok->FakeRParens << "\n"; if (!Tok->Next) assert(Tok == Line.Last); Tok = Tok->Next; } llvm::errs() << "----\n"; } } // namespace format } // namespace clang @ 1.1.1.5.4.1 log @file TokenAnnotator.cpp was added on branch yamt-pagecache on 2014-05-22 16:18:27 +0000 @ text @d1 1610 @ 1.1.1.5.4.2 log @sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments") @ text @a0 1610 //===--- TokenAnnotator.cpp - Format C++ code -----------------------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// /// /// \file /// \brief This file implements a token annotator, i.e. creates /// \c AnnotatedTokens out of \c FormatTokens with required extra information. /// //===----------------------------------------------------------------------===// #include "TokenAnnotator.h" #include "clang/Basic/SourceManager.h" #include "llvm/Support/Debug.h" namespace clang { namespace format { namespace { /// \brief A parser that gathers additional information about tokens. /// /// The \c TokenAnnotator tries to match parenthesis and square brakets and /// store a parenthesis levels. It also tries to resolve matching "<" and ">" /// into template parameter lists. class AnnotatingParser { public: AnnotatingParser(const FormatStyle &Style, AnnotatedLine &Line, IdentifierInfo &Ident_in) : Style(Style), Line(Line), CurrentToken(Line.First), KeywordVirtualFound(false), AutoFound(false), Ident_in(Ident_in) { Contexts.push_back(Context(tok::unknown, 1, /*IsExpression=*/false)); } private: bool parseAngle() { if (CurrentToken == NULL) return false; ScopedContextCreator ContextCreator(*this, tok::less, 10); FormatToken *Left = CurrentToken->Previous; Contexts.back().IsExpression = false; while (CurrentToken != NULL) { if (CurrentToken->is(tok::greater)) { Left->MatchingParen = CurrentToken; CurrentToken->MatchingParen = Left; CurrentToken->Type = TT_TemplateCloser; next(); return true; } if (CurrentToken->isOneOf(tok::r_paren, tok::r_square, tok::r_brace, tok::question, tok::colon)) return false; // If a && or || is found and interpreted as a binary operator, this set // of angles is likely part of something like "a < b && c > d". If the // angles are inside an expression, the ||/&& might also be a binary // operator that was misinterpreted because we are parsing template // parameters. // FIXME: This is getting out of hand, write a decent parser. if (CurrentToken->Previous->isOneOf(tok::pipepipe, tok::ampamp) && (CurrentToken->Previous->Type == TT_BinaryOperator || Contexts[Contexts.size() - 2].IsExpression) && Line.First->isNot(tok::kw_template)) return false; updateParameterCount(Left, CurrentToken); if (!consumeToken()) return false; } return false; } bool parseParens(bool LookForDecls = false) { if (CurrentToken == NULL) return false; bool AfterCaret = Contexts.back().CaretFound; Contexts.back().CaretFound = false; ScopedContextCreator ContextCreator(*this, tok::l_paren, 1); // FIXME: This is a bit of a hack. Do better. Contexts.back().ColonIsForRangeExpr = Contexts.size() == 2 && Contexts[0].ColonIsForRangeExpr; bool StartsObjCMethodExpr = false; FormatToken *Left = CurrentToken->Previous; if (CurrentToken->is(tok::caret)) { // (^ can start a block type. Left->Type = TT_ObjCBlockLParen; } else if (FormatToken *MaybeSel = Left->Previous) { // @@selector( starts a selector. if (MaybeSel->isObjCAtKeyword(tok::objc_selector) && MaybeSel->Previous && MaybeSel->Previous->is(tok::at)) { StartsObjCMethodExpr = true; } } if (Left->Previous && Left->Previous->isOneOf(tok::kw_static_assert, tok::kw_if, tok::kw_while)) { // static_assert, if and while usually contain expressions. Contexts.back().IsExpression = true; } else if (Left->Previous && Left->Previous->is(tok::r_square) && Left->Previous->MatchingParen && Left->Previous->MatchingParen->Type == TT_LambdaLSquare) { // This is a parameter list of a lambda expression. Contexts.back().IsExpression = false; } else if (AfterCaret) { // This is the parameter list of an ObjC block. Contexts.back().IsExpression = false; } else if (Left->Previous && Left->Previous->is(tok::kw___attribute)) { Left->Type = TT_AttributeParen; } if (StartsObjCMethodExpr) { Contexts.back().ColonIsObjCMethodExpr = true; Left->Type = TT_ObjCMethodExpr; } bool MightBeFunctionType = CurrentToken->is(tok::star); bool HasMultipleLines = false; bool HasMultipleParametersOnALine = false; while (CurrentToken != NULL) { // LookForDecls is set when "if (" has been seen. Check for // 'identifier' '*' 'identifier' followed by not '=' -- this // '*' has to be a binary operator but determineStarAmpUsage() will // categorize it as an unary operator, so set the right type here. if (LookForDecls && CurrentToken->Next) { FormatToken *Prev = CurrentToken->getPreviousNonComment(); if (Prev) { FormatToken *PrevPrev = Prev->getPreviousNonComment(); FormatToken *Next = CurrentToken->Next; if (PrevPrev && PrevPrev->is(tok::identifier) && Prev->isOneOf(tok::star, tok::amp, tok::ampamp) && CurrentToken->is(tok::identifier) && Next->isNot(tok::equal)) { Prev->Type = TT_BinaryOperator; LookForDecls = false; } } } if (CurrentToken->Previous->Type == TT_PointerOrReference && CurrentToken->Previous->Previous->isOneOf(tok::l_paren, tok::coloncolon)) MightBeFunctionType = true; if (CurrentToken->is(tok::r_paren)) { if (MightBeFunctionType && CurrentToken->Next && (CurrentToken->Next->is(tok::l_paren) || (CurrentToken->Next->is(tok::l_square) && !Contexts.back().IsExpression))) Left->Type = TT_FunctionTypeLParen; Left->MatchingParen = CurrentToken; CurrentToken->MatchingParen = Left; if (StartsObjCMethodExpr) { CurrentToken->Type = TT_ObjCMethodExpr; if (Contexts.back().FirstObjCSelectorName != NULL) { Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = Contexts.back().LongestObjCSelectorName; } } if (Left->Type == TT_AttributeParen) CurrentToken->Type = TT_AttributeParen; if (!HasMultipleLines) Left->PackingKind = PPK_Inconclusive; else if (HasMultipleParametersOnALine) Left->PackingKind = PPK_BinPacked; else Left->PackingKind = PPK_OnePerLine; next(); return true; } if (CurrentToken->isOneOf(tok::r_square, tok::r_brace)) return false; else if (CurrentToken->is(tok::l_brace)) Left->Type = TT_Unknown; // Not TT_ObjCBlockLParen updateParameterCount(Left, CurrentToken); if (CurrentToken->is(tok::comma) && CurrentToken->Next && !CurrentToken->Next->HasUnescapedNewline && !CurrentToken->Next->isTrailingComment()) HasMultipleParametersOnALine = true; if (!consumeToken()) return false; if (CurrentToken && CurrentToken->HasUnescapedNewline) HasMultipleLines = true; } return false; } bool parseSquare() { if (!CurrentToken) return false; // A '[' could be an index subscript (after an identifier or after // ')' or ']'), it could be the start of an Objective-C method // expression, or it could the the start of an Objective-C array literal. FormatToken *Left = CurrentToken->Previous; FormatToken *Parent = Left->getPreviousNonComment(); bool StartsObjCMethodExpr = Contexts.back().CanBeExpression && Left->Type != TT_LambdaLSquare && (!Parent || Parent->isOneOf(tok::colon, tok::l_square, tok::l_paren, tok::kw_return, tok::kw_throw) || Parent->isUnaryOperator() || Parent->Type == TT_ObjCForIn || Parent->Type == TT_CastRParen || getBinOpPrecedence(Parent->Tok.getKind(), true, true) > prec::Unknown); ScopedContextCreator ContextCreator(*this, tok::l_square, 10); Contexts.back().IsExpression = true; bool ColonFound = false; if (StartsObjCMethodExpr) { Contexts.back().ColonIsObjCMethodExpr = true; Left->Type = TT_ObjCMethodExpr; } else if (Parent && Parent->is(tok::at)) { Left->Type = TT_ArrayInitializerLSquare; } else if (Left->Type == TT_Unknown) { Left->Type = TT_ArraySubscriptLSquare; } while (CurrentToken != NULL) { if (CurrentToken->is(tok::r_square)) { if (CurrentToken->Next && CurrentToken->Next->is(tok::l_paren) && Left->Type == TT_ObjCMethodExpr) { // An ObjC method call is rarely followed by an open parenthesis. // FIXME: Do we incorrectly label ":" with this? StartsObjCMethodExpr = false; Left->Type = TT_Unknown; } if (StartsObjCMethodExpr) { CurrentToken->Type = TT_ObjCMethodExpr; // determineStarAmpUsage() thinks that '*' '[' is allocating an // array of pointers, but if '[' starts a selector then '*' is a // binary operator. if (Parent != NULL && Parent->Type == TT_PointerOrReference) Parent->Type = TT_BinaryOperator; } Left->MatchingParen = CurrentToken; CurrentToken->MatchingParen = Left; if (Contexts.back().FirstObjCSelectorName != NULL) { Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = Contexts.back().LongestObjCSelectorName; if (Contexts.back().NumBlockParameters > 1) Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = 0; } next(); return true; } if (CurrentToken->isOneOf(tok::r_paren, tok::r_brace)) return false; if (CurrentToken->is(tok::colon)) ColonFound = true; if (CurrentToken->is(tok::comma) && Style.Language != FormatStyle::LK_Proto && (Left->Type == TT_ArraySubscriptLSquare || (Left->Type == TT_ObjCMethodExpr && !ColonFound))) Left->Type = TT_ArrayInitializerLSquare; updateParameterCount(Left, CurrentToken); if (!consumeToken()) return false; } return false; } bool parseBrace() { if (CurrentToken != NULL) { FormatToken *Left = CurrentToken->Previous; ScopedContextCreator ContextCreator(*this, tok::l_brace, 1); Contexts.back().ColonIsDictLiteral = true; while (CurrentToken != NULL) { if (CurrentToken->is(tok::r_brace)) { Left->MatchingParen = CurrentToken; CurrentToken->MatchingParen = Left; next(); return true; } if (CurrentToken->isOneOf(tok::r_paren, tok::r_square)) return false; updateParameterCount(Left, CurrentToken); if (CurrentToken->is(tok::colon) && Style.Language != FormatStyle::LK_Proto) Left->Type = TT_DictLiteral; if (!consumeToken()) return false; } } // No closing "}" found, this probably starts a definition. Line.StartsDefinition = true; return true; } void updateParameterCount(FormatToken *Left, FormatToken *Current) { if (Current->is(tok::comma)) { ++Left->ParameterCount; if (!Left->Role) Left->Role.reset(new CommaSeparatedList(Style)); Left->Role->CommaFound(Current); } else if (Left->ParameterCount == 0 && Current->isNot(tok::comment)) { Left->ParameterCount = 1; } } bool parseConditional() { while (CurrentToken != NULL) { if (CurrentToken->is(tok::colon)) { CurrentToken->Type = TT_ConditionalExpr; next(); return true; } if (!consumeToken()) return false; } return false; } bool parseTemplateDeclaration() { if (CurrentToken != NULL && CurrentToken->is(tok::less)) { CurrentToken->Type = TT_TemplateOpener; next(); if (!parseAngle()) return false; if (CurrentToken != NULL) CurrentToken->Previous->ClosesTemplateDeclaration = true; return true; } return false; } bool consumeToken() { FormatToken *Tok = CurrentToken; next(); switch (Tok->Tok.getKind()) { case tok::plus: case tok::minus: if (Tok->Previous == NULL && Line.MustBeDeclaration) Tok->Type = TT_ObjCMethodSpecifier; break; case tok::colon: if (Tok->Previous == NULL) return false; // Colons from ?: are handled in parseConditional(). if (Tok->Previous->is(tok::r_paren) && Contexts.size() == 1) { Tok->Type = TT_CtorInitializerColon; } else if (Contexts.back().ColonIsDictLiteral) { Tok->Type = TT_DictLiteral; } else if (Contexts.back().ColonIsObjCMethodExpr || Line.First->Type == TT_ObjCMethodSpecifier) { Tok->Type = TT_ObjCMethodExpr; Tok->Previous->Type = TT_ObjCSelectorName; if (Tok->Previous->ColumnWidth > Contexts.back().LongestObjCSelectorName) { Contexts.back().LongestObjCSelectorName = Tok->Previous->ColumnWidth; } if (Contexts.back().FirstObjCSelectorName == NULL) Contexts.back().FirstObjCSelectorName = Tok->Previous; } else if (Contexts.back().ColonIsForRangeExpr) { Tok->Type = TT_RangeBasedForLoopColon; } else if (CurrentToken != NULL && CurrentToken->is(tok::numeric_constant)) { Tok->Type = TT_BitFieldColon; } else if (Contexts.size() == 1 && Line.First->isNot(tok::kw_enum)) { Tok->Type = TT_InheritanceColon; } else if (Contexts.back().ContextKind == tok::l_paren) { Tok->Type = TT_InlineASMColon; } break; case tok::kw_if: case tok::kw_while: if (CurrentToken != NULL && CurrentToken->is(tok::l_paren)) { next(); if (!parseParens(/*LookForDecls=*/true)) return false; } break; case tok::kw_for: Contexts.back().ColonIsForRangeExpr = true; next(); if (!parseParens()) return false; break; case tok::l_paren: if (!parseParens()) return false; if (Line.MustBeDeclaration && Contexts.size() == 1 && !Contexts.back().IsExpression && Line.First->Type != TT_ObjCProperty) Line.MightBeFunctionDecl = true; break; case tok::l_square: if (!parseSquare()) return false; break; case tok::l_brace: if (!parseBrace()) return false; break; case tok::less: if (Tok->Previous && !Tok->Previous->Tok.isLiteral() && parseAngle()) Tok->Type = TT_TemplateOpener; else { Tok->Type = TT_BinaryOperator; CurrentToken = Tok; next(); } break; case tok::r_paren: case tok::r_square: return false; case tok::r_brace: // Lines can start with '}'. if (Tok->Previous != NULL) return false; break; case tok::greater: Tok->Type = TT_BinaryOperator; break; case tok::kw_operator: while (CurrentToken && !CurrentToken->isOneOf(tok::l_paren, tok::semi, tok::r_paren)) { if (CurrentToken->isOneOf(tok::star, tok::amp)) CurrentToken->Type = TT_PointerOrReference; consumeToken(); if (CurrentToken && CurrentToken->Previous->Type == TT_BinaryOperator) CurrentToken->Previous->Type = TT_OverloadedOperator; } if (CurrentToken) { CurrentToken->Type = TT_OverloadedOperatorLParen; if (CurrentToken->Previous->Type == TT_BinaryOperator) CurrentToken->Previous->Type = TT_OverloadedOperator; } break; case tok::question: parseConditional(); break; case tok::kw_template: parseTemplateDeclaration(); break; case tok::identifier: if (Line.First->is(tok::kw_for) && Tok->Tok.getIdentifierInfo() == &Ident_in) Tok->Type = TT_ObjCForIn; break; case tok::comma: if (Contexts.back().FirstStartOfName) Contexts.back().FirstStartOfName->PartOfMultiVariableDeclStmt = true; if (Contexts.back().InCtorInitializer) Tok->Type = TT_CtorInitializerComma; break; default: break; } return true; } void parseIncludeDirective() { next(); if (CurrentToken != NULL && CurrentToken->is(tok::less)) { next(); while (CurrentToken != NULL) { if (CurrentToken->isNot(tok::comment) || CurrentToken->Next) CurrentToken->Type = TT_ImplicitStringLiteral; next(); } } else { while (CurrentToken != NULL) { if (CurrentToken->is(tok::string_literal)) // Mark these string literals as "implicit" literals, too, so that // they are not split or line-wrapped. CurrentToken->Type = TT_ImplicitStringLiteral; next(); } } } void parseWarningOrError() { next(); // We still want to format the whitespace left of the first token of the // warning or error. next(); while (CurrentToken != NULL) { CurrentToken->Type = TT_ImplicitStringLiteral; next(); } } void parsePragma() { next(); // Consume "pragma". if (CurrentToken && CurrentToken->TokenText == "mark") { next(); // Consume "mark". next(); // Consume first token (so we fix leading whitespace). while (CurrentToken != NULL) { CurrentToken->Type = TT_ImplicitStringLiteral; next(); } } } void parsePreprocessorDirective() { next(); if (CurrentToken == NULL) return; if (CurrentToken->Tok.is(tok::numeric_constant)) { CurrentToken->SpacesRequiredBefore = 1; return; } // Hashes in the middle of a line can lead to any strange token // sequence. if (CurrentToken->Tok.getIdentifierInfo() == NULL) return; switch (CurrentToken->Tok.getIdentifierInfo()->getPPKeywordID()) { case tok::pp_include: case tok::pp_import: parseIncludeDirective(); break; case tok::pp_error: case tok::pp_warning: parseWarningOrError(); break; case tok::pp_pragma: parsePragma(); break; case tok::pp_if: case tok::pp_elif: Contexts.back().IsExpression = true; parseLine(); break; default: break; } while (CurrentToken != NULL) next(); } public: LineType parseLine() { if (CurrentToken->is(tok::hash)) { parsePreprocessorDirective(); return LT_PreprocessorDirective; } // Directly allow to 'import ' to support protocol buffer // definitions (code.google.com/p/protobuf) or missing "#" (either way we // should not break the line). IdentifierInfo *Info = CurrentToken->Tok.getIdentifierInfo(); if (Info && Info->getPPKeywordID() == tok::pp_import && CurrentToken->Next && CurrentToken->Next->is(tok::string_literal)) parseIncludeDirective(); while (CurrentToken != NULL) { if (CurrentToken->is(tok::kw_virtual)) KeywordVirtualFound = true; if (!consumeToken()) return LT_Invalid; } if (KeywordVirtualFound) return LT_VirtualFunctionDecl; if (Line.First->Type == TT_ObjCMethodSpecifier) { if (Contexts.back().FirstObjCSelectorName != NULL) Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = Contexts.back().LongestObjCSelectorName; return LT_ObjCMethodDecl; } return LT_Other; } private: void next() { if (CurrentToken != NULL) { determineTokenType(*CurrentToken); CurrentToken->BindingStrength = Contexts.back().BindingStrength; CurrentToken->NestingLevel = Contexts.size() - 1; } if (CurrentToken != NULL) CurrentToken = CurrentToken->Next; if (CurrentToken != NULL) { // Reset token type in case we have already looked at it and then // recovered from an error (e.g. failure to find the matching >). if (CurrentToken->Type != TT_LambdaLSquare && CurrentToken->Type != TT_FunctionLBrace && CurrentToken->Type != TT_ImplicitStringLiteral) CurrentToken->Type = TT_Unknown; if (CurrentToken->Role) CurrentToken->Role.reset(NULL); CurrentToken->FakeLParens.clear(); CurrentToken->FakeRParens = 0; } } /// \brief A struct to hold information valid in a specific context, e.g. /// a pair of parenthesis. struct Context { Context(tok::TokenKind ContextKind, unsigned BindingStrength, bool IsExpression) : ContextKind(ContextKind), BindingStrength(BindingStrength), LongestObjCSelectorName(0), NumBlockParameters(0), ColonIsForRangeExpr(false), ColonIsDictLiteral(false), ColonIsObjCMethodExpr(false), FirstObjCSelectorName(NULL), FirstStartOfName(NULL), IsExpression(IsExpression), CanBeExpression(true), InCtorInitializer(false), CaretFound(false) {} tok::TokenKind ContextKind; unsigned BindingStrength; unsigned LongestObjCSelectorName; unsigned NumBlockParameters; bool ColonIsForRangeExpr; bool ColonIsDictLiteral; bool ColonIsObjCMethodExpr; FormatToken *FirstObjCSelectorName; FormatToken *FirstStartOfName; bool IsExpression; bool CanBeExpression; bool InCtorInitializer; bool CaretFound; }; /// \brief Puts a new \c Context onto the stack \c Contexts for the lifetime /// of each instance. struct ScopedContextCreator { AnnotatingParser &P; ScopedContextCreator(AnnotatingParser &P, tok::TokenKind ContextKind, unsigned Increase) : P(P) { P.Contexts.push_back(Context(ContextKind, P.Contexts.back().BindingStrength + Increase, P.Contexts.back().IsExpression)); } ~ScopedContextCreator() { P.Contexts.pop_back(); } }; void determineTokenType(FormatToken &Current) { if (Current.getPrecedence() == prec::Assignment && !Line.First->isOneOf(tok::kw_template, tok::kw_using) && (!Current.Previous || Current.Previous->isNot(tok::kw_operator))) { Contexts.back().IsExpression = true; for (FormatToken *Previous = Current.Previous; Previous && !Previous->isOneOf(tok::comma, tok::semi); Previous = Previous->Previous) { if (Previous->is(tok::r_square)) Previous = Previous->MatchingParen; if (Previous->Type == TT_BinaryOperator && Previous->isOneOf(tok::star, tok::amp)) { Previous->Type = TT_PointerOrReference; } } } else if (Current.isOneOf(tok::kw_return, tok::kw_throw)) { Contexts.back().IsExpression = true; } else if (Current.is(tok::l_paren) && !Line.MustBeDeclaration && !Line.InPPDirective) { bool ParametersOfFunctionType = Current.Previous && Current.Previous->is(tok::r_paren) && Current.Previous->MatchingParen && Current.Previous->MatchingParen->Type == TT_FunctionTypeLParen; bool IsForOrCatch = Current.Previous && Current.Previous->isOneOf(tok::kw_for, tok::kw_catch); Contexts.back().IsExpression = !ParametersOfFunctionType && !IsForOrCatch; } else if (Current.isOneOf(tok::r_paren, tok::greater, tok::comma)) { for (FormatToken *Previous = Current.Previous; Previous && Previous->isOneOf(tok::star, tok::amp); Previous = Previous->Previous) Previous->Type = TT_PointerOrReference; } else if (Current.Previous && Current.Previous->Type == TT_CtorInitializerColon) { Contexts.back().IsExpression = true; Contexts.back().InCtorInitializer = true; } else if (Current.is(tok::kw_new)) { Contexts.back().CanBeExpression = false; } else if (Current.is(tok::semi) || Current.is(tok::exclaim)) { // This should be the condition or increment in a for-loop. Contexts.back().IsExpression = true; } if (Current.Type == TT_Unknown) { // Line.MightBeFunctionDecl can only be true after the parentheses of a // function declaration have been found. In this case, 'Current' is a // trailing token of this declaration and thus cannot be a name. if (isStartOfName(Current) && !Line.MightBeFunctionDecl) { Contexts.back().FirstStartOfName = &Current; Current.Type = TT_StartOfName; } else if (Current.is(tok::kw_auto)) { AutoFound = true; } else if (Current.is(tok::arrow) && AutoFound && Line.MustBeDeclaration) { Current.Type = TT_TrailingReturnArrow; } else if (Current.isOneOf(tok::star, tok::amp, tok::ampamp)) { Current.Type = determineStarAmpUsage(Current, Contexts.back().CanBeExpression && Contexts.back().IsExpression); } else if (Current.isOneOf(tok::minus, tok::plus, tok::caret)) { Current.Type = determinePlusMinusCaretUsage(Current); if (Current.Type == TT_UnaryOperator) { ++Contexts.back().NumBlockParameters; if (Current.is(tok::caret)) Contexts.back().CaretFound = true; } } else if (Current.isOneOf(tok::minusminus, tok::plusplus)) { Current.Type = determineIncrementUsage(Current); } else if (Current.is(tok::exclaim)) { Current.Type = TT_UnaryOperator; } else if (Current.isBinaryOperator() && (!Current.Previous || Current.Previous->isNot(tok::l_square))) { Current.Type = TT_BinaryOperator; } else if (Current.is(tok::comment)) { if (Current.TokenText.startswith("//")) Current.Type = TT_LineComment; else Current.Type = TT_BlockComment; } else if (Current.is(tok::r_paren)) { FormatToken *LeftOfParens = NULL; if (Current.MatchingParen) LeftOfParens = Current.MatchingParen->getPreviousNonComment(); bool IsCast = false; bool ParensAreEmpty = Current.Previous == Current.MatchingParen; bool ParensAreType = !Current.Previous || Current.Previous->Type == TT_PointerOrReference || Current.Previous->Type == TT_TemplateCloser || Current.Previous->isSimpleTypeSpecifier(); bool ParensCouldEndDecl = Current.Next && Current.Next->isOneOf(tok::equal, tok::semi, tok::l_brace); bool IsSizeOfOrAlignOf = LeftOfParens && LeftOfParens->isOneOf(tok::kw_sizeof, tok::kw_alignof); if (ParensAreType && !ParensCouldEndDecl && !IsSizeOfOrAlignOf && (Contexts.back().IsExpression || (Current.Next && Current.Next->isBinaryOperator()))) IsCast = true; if (Current.Next && Current.Next->isNot(tok::string_literal) && (Current.Next->Tok.isLiteral() || Current.Next->isOneOf(tok::kw_sizeof, tok::kw_alignof))) IsCast = true; // If there is an identifier after the (), it is likely a cast, unless // there is also an identifier before the (). if (LeftOfParens && (LeftOfParens->Tok.getIdentifierInfo() == NULL || LeftOfParens->is(tok::kw_return)) && LeftOfParens->Type != TT_OverloadedOperator && LeftOfParens->isNot(tok::at) && LeftOfParens->Type != TT_TemplateCloser && Current.Next && Current.Next->is(tok::identifier)) IsCast = true; if (IsCast && !ParensAreEmpty) Current.Type = TT_CastRParen; } else if (Current.is(tok::at) && Current.Next) { switch (Current.Next->Tok.getObjCKeywordID()) { case tok::objc_interface: case tok::objc_implementation: case tok::objc_protocol: Current.Type = TT_ObjCDecl; break; case tok::objc_property: Current.Type = TT_ObjCProperty; break; default: break; } } else if (Current.is(tok::period)) { FormatToken *PreviousNoComment = Current.getPreviousNonComment(); if (PreviousNoComment && PreviousNoComment->isOneOf(tok::comma, tok::l_brace)) Current.Type = TT_DesignatedInitializerPeriod; } else if (Current.isOneOf(tok::identifier, tok::kw_const) && Line.MightBeFunctionDecl && Contexts.size() == 1) { // Line.MightBeFunctionDecl can only be true after the parentheses of a // function declaration have been found. Current.Type = TT_TrailingAnnotation; } } } /// \brief Take a guess at whether \p Tok starts a name of a function or /// variable declaration. /// /// This is a heuristic based on whether \p Tok is an identifier following /// something that is likely a type. bool isStartOfName(const FormatToken &Tok) { if (Tok.isNot(tok::identifier) || Tok.Previous == NULL) return false; // Skip "const" as it does not have an influence on whether this is a name. FormatToken *PreviousNotConst = Tok.Previous; while (PreviousNotConst != NULL && PreviousNotConst->is(tok::kw_const)) PreviousNotConst = PreviousNotConst->Previous; if (PreviousNotConst == NULL) return false; bool IsPPKeyword = PreviousNotConst->is(tok::identifier) && PreviousNotConst->Previous && PreviousNotConst->Previous->is(tok::hash); if (PreviousNotConst->Type == TT_TemplateCloser) return PreviousNotConst && PreviousNotConst->MatchingParen && PreviousNotConst->MatchingParen->Previous && PreviousNotConst->MatchingParen->Previous->isNot(tok::kw_template); return (!IsPPKeyword && PreviousNotConst->is(tok::identifier)) || PreviousNotConst->Type == TT_PointerOrReference || PreviousNotConst->isSimpleTypeSpecifier(); } /// \brief Return the type of the given token assuming it is * or &. TokenType determineStarAmpUsage(const FormatToken &Tok, bool IsExpression) { const FormatToken *PrevToken = Tok.getPreviousNonComment(); if (PrevToken == NULL) return TT_UnaryOperator; const FormatToken *NextToken = Tok.getNextNonComment(); if (NextToken == NULL) return TT_Unknown; if (PrevToken->is(tok::coloncolon) || (PrevToken->is(tok::l_paren) && !IsExpression)) return TT_PointerOrReference; if (PrevToken->isOneOf(tok::l_paren, tok::l_square, tok::l_brace, tok::comma, tok::semi, tok::kw_return, tok::colon, tok::equal, tok::kw_delete, tok::kw_sizeof) || PrevToken->Type == TT_BinaryOperator || PrevToken->Type == TT_UnaryOperator || PrevToken->Type == TT_CastRParen) return TT_UnaryOperator; if (NextToken->is(tok::l_square)) return TT_PointerOrReference; if (PrevToken->is(tok::r_paren) && PrevToken->MatchingParen && PrevToken->MatchingParen->Previous && PrevToken->MatchingParen->Previous->is(tok::kw_typeof)) return TT_PointerOrReference; if (PrevToken->Tok.isLiteral() || PrevToken->isOneOf(tok::r_paren, tok::r_square) || NextToken->Tok.isLiteral() || NextToken->isUnaryOperator()) return TT_BinaryOperator; // It is very unlikely that we are going to find a pointer or reference type // definition on the RHS of an assignment. if (IsExpression) return TT_BinaryOperator; return TT_PointerOrReference; } TokenType determinePlusMinusCaretUsage(const FormatToken &Tok) { const FormatToken *PrevToken = Tok.getPreviousNonComment(); if (PrevToken == NULL || PrevToken->Type == TT_CastRParen) return TT_UnaryOperator; // Use heuristics to recognize unary operators. if (PrevToken->isOneOf(tok::equal, tok::l_paren, tok::comma, tok::l_square, tok::question, tok::colon, tok::kw_return, tok::kw_case, tok::at, tok::l_brace)) return TT_UnaryOperator; // There can't be two consecutive binary operators. if (PrevToken->Type == TT_BinaryOperator) return TT_UnaryOperator; // Fall back to marking the token as binary operator. return TT_BinaryOperator; } /// \brief Determine whether ++/-- are pre- or post-increments/-decrements. TokenType determineIncrementUsage(const FormatToken &Tok) { const FormatToken *PrevToken = Tok.getPreviousNonComment(); if (PrevToken == NULL || PrevToken->Type == TT_CastRParen) return TT_UnaryOperator; if (PrevToken->isOneOf(tok::r_paren, tok::r_square, tok::identifier)) return TT_TrailingUnaryOperator; return TT_UnaryOperator; } SmallVector Contexts; const FormatStyle &Style; AnnotatedLine &Line; FormatToken *CurrentToken; bool KeywordVirtualFound; bool AutoFound; IdentifierInfo &Ident_in; }; static int PrecedenceUnaryOperator = prec::PointerToMember + 1; static int PrecedenceArrowAndPeriod = prec::PointerToMember + 2; /// \brief Parses binary expressions by inserting fake parenthesis based on /// operator precedence. class ExpressionParser { public: ExpressionParser(AnnotatedLine &Line) : Current(Line.First) { // Skip leading "}", e.g. in "} else if (...) {". if (Current->is(tok::r_brace)) next(); } /// \brief Parse expressions with the given operatore precedence. void parse(int Precedence = 0) { // Skip 'return' and ObjC selector colons as they are not part of a binary // expression. while (Current && (Current->is(tok::kw_return) || (Current->is(tok::colon) && Current->Type == TT_ObjCMethodExpr))) next(); if (Current == NULL || Precedence > PrecedenceArrowAndPeriod) return; // Conditional expressions need to be parsed separately for proper nesting. if (Precedence == prec::Conditional) { parseConditionalExpr(); return; } // Parse unary operators, which all have a higher precedence than binary // operators. if (Precedence == PrecedenceUnaryOperator) { parseUnaryOperator(); return; } FormatToken *Start = Current; FormatToken *LatestOperator = NULL; while (Current) { // Consume operators with higher precedence. parse(Precedence + 1); int CurrentPrecedence = getCurrentPrecedence(); if (Current && Current->Type == TT_ObjCSelectorName && Precedence == CurrentPrecedence) { if (LatestOperator) addFakeParenthesis(Start, prec::Level(Precedence)); Start = Current; } // At the end of the line or when an operator with higher precedence is // found, insert fake parenthesis and return. if (Current == NULL || Current->closesScope() || (CurrentPrecedence != -1 && CurrentPrecedence < Precedence)) { if (LatestOperator) { if (Precedence == PrecedenceArrowAndPeriod) { LatestOperator->LastInChainOfCalls = true; // Call expressions don't have a binary operator precedence. addFakeParenthesis(Start, prec::Unknown); } else { addFakeParenthesis(Start, prec::Level(Precedence)); } } return; } // Consume scopes: (), [], <> and {} if (Current->opensScope()) { while (Current && !Current->closesScope()) { next(); parse(); } next(); } else { // Operator found. if (CurrentPrecedence == Precedence) LatestOperator = Current; next(); } } } private: /// \brief Gets the precedence (+1) of the given token for binary operators /// and other tokens that we treat like binary operators. int getCurrentPrecedence() { if (Current) { if (Current->Type == TT_ConditionalExpr) return prec::Conditional; else if (Current->is(tok::semi) || Current->Type == TT_InlineASMColon || Current->Type == TT_ObjCSelectorName) return 0; else if (Current->Type == TT_RangeBasedForLoopColon) return prec::Comma; else if (Current->Type == TT_BinaryOperator || Current->is(tok::comma)) return Current->getPrecedence(); else if (Current->isOneOf(tok::period, tok::arrow)) return PrecedenceArrowAndPeriod; } return -1; } void addFakeParenthesis(FormatToken *Start, prec::Level Precedence) { Start->FakeLParens.push_back(Precedence); if (Precedence > prec::Unknown) Start->StartsBinaryExpression = true; if (Current) { ++Current->Previous->FakeRParens; if (Precedence > prec::Unknown) Current->Previous->EndsBinaryExpression = true; } } /// \brief Parse unary operator expressions and surround them with fake /// parentheses if appropriate. void parseUnaryOperator() { if (Current == NULL || Current->Type != TT_UnaryOperator) { parse(PrecedenceArrowAndPeriod); return; } FormatToken *Start = Current; next(); parseUnaryOperator(); // The actual precedence doesn't matter. addFakeParenthesis(Start, prec::Unknown); } void parseConditionalExpr() { FormatToken *Start = Current; parse(prec::LogicalOr); if (!Current || !Current->is(tok::question)) return; next(); parse(prec::LogicalOr); if (!Current || Current->Type != TT_ConditionalExpr) return; next(); parseConditionalExpr(); addFakeParenthesis(Start, prec::Conditional); } void next() { if (Current) Current = Current->Next; while (Current && Current->isTrailingComment()) Current = Current->Next; } FormatToken *Current; }; } // end anonymous namespace void TokenAnnotator::setCommentLineLevels(SmallVectorImpl &Lines) { const AnnotatedLine *NextNonCommentLine = NULL; for (SmallVectorImpl::reverse_iterator I = Lines.rbegin(), E = Lines.rend(); I != E; ++I) { if (NextNonCommentLine && (*I)->First->is(tok::comment) && (*I)->First->Next == NULL) (*I)->Level = NextNonCommentLine->Level; else NextNonCommentLine = (*I)->First->isNot(tok::r_brace) ? (*I) : NULL; setCommentLineLevels((*I)->Children); } } void TokenAnnotator::annotate(AnnotatedLine &Line) { for (SmallVectorImpl::iterator I = Line.Children.begin(), E = Line.Children.end(); I != E; ++I) { annotate(**I); } AnnotatingParser Parser(Style, Line, Ident_in); Line.Type = Parser.parseLine(); if (Line.Type == LT_Invalid) return; ExpressionParser ExprParser(Line); ExprParser.parse(); if (Line.First->Type == TT_ObjCMethodSpecifier) Line.Type = LT_ObjCMethodDecl; else if (Line.First->Type == TT_ObjCDecl) Line.Type = LT_ObjCDecl; else if (Line.First->Type == TT_ObjCProperty) Line.Type = LT_ObjCProperty; Line.First->SpacesRequiredBefore = 1; Line.First->CanBreakBefore = Line.First->MustBreakBefore; } void TokenAnnotator::calculateFormattingInformation(AnnotatedLine &Line) { Line.First->TotalLength = Line.First->IsMultiline ? Style.ColumnLimit : Line.First->ColumnWidth; if (!Line.First->Next) return; FormatToken *Current = Line.First->Next; bool InFunctionDecl = Line.MightBeFunctionDecl; while (Current != NULL) { if (Current->Type == TT_LineComment) { if (Current->Previous->BlockKind == BK_BracedInit) Current->SpacesRequiredBefore = Style.Cpp11BracedListStyle ? 0 : 1; else Current->SpacesRequiredBefore = Style.SpacesBeforeTrailingComments; } else if (Current->SpacesRequiredBefore == 0 && spaceRequiredBefore(Line, *Current)) { Current->SpacesRequiredBefore = 1; } Current->MustBreakBefore = Current->MustBreakBefore || mustBreakBefore(Line, *Current); Current->CanBreakBefore = Current->MustBreakBefore || canBreakBefore(Line, *Current); if (Current->MustBreakBefore || !Current->Children.empty() || Current->IsMultiline) Current->TotalLength = Current->Previous->TotalLength + Style.ColumnLimit; else Current->TotalLength = Current->Previous->TotalLength + Current->ColumnWidth + Current->SpacesRequiredBefore; if (Current->Type == TT_CtorInitializerColon) InFunctionDecl = false; // FIXME: Only calculate this if CanBreakBefore is true once static // initializers etc. are sorted out. // FIXME: Move magic numbers to a better place. Current->SplitPenalty = 20 * Current->BindingStrength + splitPenalty(Line, *Current, InFunctionDecl); Current = Current->Next; } calculateUnbreakableTailLengths(Line); for (Current = Line.First; Current != NULL; Current = Current->Next) { if (Current->Role) Current->Role->precomputeFormattingInfos(Current); } DEBUG({ printDebugInfo(Line); }); for (SmallVectorImpl::iterator I = Line.Children.begin(), E = Line.Children.end(); I != E; ++I) { calculateFormattingInformation(**I); } } void TokenAnnotator::calculateUnbreakableTailLengths(AnnotatedLine &Line) { unsigned UnbreakableTailLength = 0; FormatToken *Current = Line.Last; while (Current != NULL) { Current->UnbreakableTailLength = UnbreakableTailLength; if (Current->CanBreakBefore || Current->isOneOf(tok::comment, tok::string_literal)) { UnbreakableTailLength = 0; } else { UnbreakableTailLength += Current->ColumnWidth + Current->SpacesRequiredBefore; } Current = Current->Previous; } } unsigned TokenAnnotator::splitPenalty(const AnnotatedLine &Line, const FormatToken &Tok, bool InFunctionDecl) { const FormatToken &Left = *Tok.Previous; const FormatToken &Right = Tok; if (Left.is(tok::semi)) return 0; if (Left.is(tok::comma)) return 1; if (Right.is(tok::l_square)) { if (Style.Language == FormatStyle::LK_Proto) return 1; if (Right.Type != TT_ObjCMethodExpr) return 250; } if (Right.Type == TT_StartOfName || Right.is(tok::kw_operator)) { if (Line.First->is(tok::kw_for) && Right.PartOfMultiVariableDeclStmt) return 3; if (Left.Type == TT_StartOfName) return 20; if (InFunctionDecl && Right.NestingLevel == 0) return Style.PenaltyReturnTypeOnItsOwnLine; return 200; } if (Left.is(tok::equal) && Right.is(tok::l_brace)) return 150; if (Left.Type == TT_CastRParen) return 100; if (Left.is(tok::coloncolon) || (Right.is(tok::period) && Style.Language == FormatStyle::LK_Proto)) return 500; if (Left.isOneOf(tok::kw_class, tok::kw_struct)) return 5000; if (Left.Type == TT_RangeBasedForLoopColon || Left.Type == TT_InheritanceColon) return 2; if (Right.isMemberAccess()) { if (Left.is(tok::r_paren) && Left.MatchingParen && Left.MatchingParen->ParameterCount > 0) return 20; // Should be smaller than breaking at a nested comma. return 150; } if (Right.Type == TT_TrailingAnnotation && Right.Next && Right.Next->isNot(tok::l_paren)) { // Generally, breaking before a trailing annotation is bad unless it is // function-like. It seems to be especially preferable to keep standard // annotations (i.e. "const", "final" and "override") on the same line. // Use a slightly higher penalty after ")" so that annotations like // "const override" are kept together. bool is_standard_annotation = Right.is(tok::kw_const) || Right.TokenText == "override" || Right.TokenText == "final"; return (Left.is(tok::r_paren) ? 100 : 120) + (is_standard_annotation ? 50 : 0); } // In for-loops, prefer breaking at ',' and ';'. if (Line.First->is(tok::kw_for) && Left.is(tok::equal)) return 4; // In Objective-C method expressions, prefer breaking before "param:" over // breaking after it. if (Right.Type == TT_ObjCSelectorName) return 0; if (Left.is(tok::colon) && Left.Type == TT_ObjCMethodExpr) return Line.MightBeFunctionDecl ? 50 : 500; if (Left.is(tok::l_paren) && InFunctionDecl) return 100; if (Left.is(tok::equal) && InFunctionDecl) return 110; if (Left.opensScope()) return Left.ParameterCount > 1 ? Style.PenaltyBreakBeforeFirstCallParameter : 19; if (Right.is(tok::lessless)) { if (Left.is(tok::string_literal)) { StringRef Content = Left.TokenText; if (Content.startswith("\"")) Content = Content.drop_front(1); if (Content.endswith("\"")) Content = Content.drop_back(1); Content = Content.trim(); if (Content.size() > 1 && (Content.back() == ':' || Content.back() == '=')) return 25; } return 1; // Breaking at a << is really cheap. } if (Left.Type == TT_ConditionalExpr) return prec::Conditional; prec::Level Level = Left.getPrecedence(); if (Level != prec::Unknown) return Level; return 3; } bool TokenAnnotator::spaceRequiredBetween(const AnnotatedLine &Line, const FormatToken &Left, const FormatToken &Right) { if (Style.Language == FormatStyle::LK_Proto) { if (Right.is(tok::l_paren) && (Left.TokenText == "returns" || Left.TokenText == "option")) return true; } if (Style.ObjCSpaceAfterProperty && Line.Type == LT_ObjCProperty && Left.Tok.getObjCKeywordID() == tok::objc_property) return true; if (Right.is(tok::hashhash)) return Left.is(tok::hash); if (Left.isOneOf(tok::hashhash, tok::hash)) return Right.is(tok::hash); if (Left.is(tok::l_paren) && Right.is(tok::r_paren)) return Style.SpaceInEmptyParentheses; if (Left.is(tok::l_paren) || Right.is(tok::r_paren)) return (Right.Type == TT_CastRParen || (Left.MatchingParen && Left.MatchingParen->Type == TT_CastRParen)) ? Style.SpacesInCStyleCastParentheses : Style.SpacesInParentheses; if (Style.SpacesInAngles && ((Left.Type == TT_TemplateOpener) != (Right.Type == TT_TemplateCloser))) return true; if (Right.isOneOf(tok::semi, tok::comma)) return false; if (Right.is(tok::less) && (Left.is(tok::kw_template) || (Line.Type == LT_ObjCDecl && Style.ObjCSpaceBeforeProtocolList))) return true; if (Left.is(tok::arrow) || Right.is(tok::arrow)) return false; if (Left.isOneOf(tok::exclaim, tok::tilde)) return false; if (Left.is(tok::at) && Right.isOneOf(tok::identifier, tok::string_literal, tok::char_constant, tok::numeric_constant, tok::l_paren, tok::l_brace, tok::kw_true, tok::kw_false)) return false; if (Left.is(tok::coloncolon)) return false; if (Right.is(tok::coloncolon) && Left.isNot(tok::l_brace)) return (Left.is(tok::less) && Style.Standard == FormatStyle::LS_Cpp03) || !Left.isOneOf(tok::identifier, tok::greater, tok::l_paren, tok::r_paren, tok::less); if (Left.is(tok::less) || Right.isOneOf(tok::greater, tok::less)) return false; if (Right.is(tok::ellipsis)) return Left.Tok.isLiteral(); if (Left.is(tok::l_square) && Right.is(tok::amp)) return false; if (Right.Type == TT_PointerOrReference) return Left.Tok.isLiteral() || ((Left.Type != TT_PointerOrReference) && Left.isNot(tok::l_paren) && !Style.PointerBindsToType); if (Right.Type == TT_FunctionTypeLParen && Left.isNot(tok::l_paren) && (Left.Type != TT_PointerOrReference || Style.PointerBindsToType)) return true; if (Left.Type == TT_PointerOrReference) return Right.Tok.isLiteral() || Right.Type == TT_BlockComment || ((Right.Type != TT_PointerOrReference) && Right.isNot(tok::l_paren) && Style.PointerBindsToType && Left.Previous && !Left.Previous->isOneOf(tok::l_paren, tok::coloncolon)); if (Right.is(tok::star) && Left.is(tok::l_paren)) return false; if (Left.is(tok::l_square)) return Left.Type == TT_ArrayInitializerLSquare && Style.SpacesInContainerLiterals && Right.isNot(tok::r_square); if (Right.is(tok::r_square)) return Right.MatchingParen && Style.SpacesInContainerLiterals && Right.MatchingParen->Type == TT_ArrayInitializerLSquare; if (Right.is(tok::l_square) && Right.Type != TT_ObjCMethodExpr && Right.Type != TT_LambdaLSquare && Left.isNot(tok::numeric_constant)) return false; if (Left.is(tok::colon)) return Left.Type != TT_ObjCMethodExpr; if (Right.is(tok::l_paren)) { if (Left.is(tok::r_paren) && Left.Type == TT_AttributeParen) return true; return Line.Type == LT_ObjCDecl || Left.isOneOf(tok::kw_return, tok::kw_new, tok::kw_delete, tok::semi) || (Style.SpaceBeforeParens != FormatStyle::SBPO_Never && Left.isOneOf(tok::kw_if, tok::kw_for, tok::kw_while, tok::kw_switch, tok::kw_catch)) || (Style.SpaceBeforeParens == FormatStyle::SBPO_Always && Left.isOneOf(tok::identifier, tok::kw___attribute) && Line.Type != LT_PreprocessorDirective); } if (Left.is(tok::at) && Right.Tok.getObjCKeywordID() != tok::objc_not_keyword) return false; if (Left.is(tok::l_brace) && Right.is(tok::r_brace)) return !Left.Children.empty(); // No spaces in "{}". if ((Left.is(tok::l_brace) && Left.BlockKind != BK_Block) || (Right.is(tok::r_brace) && Right.MatchingParen && Right.MatchingParen->BlockKind != BK_Block)) return !Style.Cpp11BracedListStyle; if (Left.Type == TT_BlockComment && Left.TokenText.endswith("=*/")) return false; if (Right.Type == TT_UnaryOperator) return !Left.isOneOf(tok::l_paren, tok::l_square, tok::at) && (Left.isNot(tok::colon) || Left.Type != TT_ObjCMethodExpr); if (Left.isOneOf(tok::identifier, tok::greater, tok::r_square) && Right.is(tok::l_brace) && Right.getNextNonComment() && Right.BlockKind != BK_Block) return false; if (Left.is(tok::period) || Right.is(tok::period)) return false; if (Right.is(tok::hash) && Left.is(tok::identifier) && Left.TokenText == "L") return false; return true; } bool TokenAnnotator::spaceRequiredBefore(const AnnotatedLine &Line, const FormatToken &Tok) { if (Tok.Tok.getIdentifierInfo() && Tok.Previous->Tok.getIdentifierInfo()) return true; // Never ever merge two identifiers. if (Tok.Previous->Type == TT_ImplicitStringLiteral) return Tok.WhitespaceRange.getBegin() != Tok.WhitespaceRange.getEnd(); if (Line.Type == LT_ObjCMethodDecl) { if (Tok.Previous->Type == TT_ObjCMethodSpecifier) return true; if (Tok.Previous->is(tok::r_paren) && Tok.is(tok::identifier)) // Don't space between ')' and return false; } if (Line.Type == LT_ObjCProperty && (Tok.is(tok::equal) || Tok.Previous->is(tok::equal))) return false; if (Tok.Type == TT_TrailingReturnArrow || Tok.Previous->Type == TT_TrailingReturnArrow) return true; if (Tok.Previous->is(tok::comma)) return true; if (Tok.is(tok::comma)) return false; if (Tok.Type == TT_CtorInitializerColon || Tok.Type == TT_ObjCBlockLParen) return true; if (Tok.Previous->Tok.is(tok::kw_operator)) return Tok.is(tok::coloncolon); if (Tok.Type == TT_OverloadedOperatorLParen) return false; if (Tok.is(tok::colon)) return !Line.First->isOneOf(tok::kw_case, tok::kw_default) && Tok.getNextNonComment() != NULL && Tok.Type != TT_ObjCMethodExpr && !Tok.Previous->is(tok::question) && (Tok.Type != TT_DictLiteral || Style.SpacesInContainerLiterals); if (Tok.Previous->Type == TT_UnaryOperator || Tok.Previous->Type == TT_CastRParen) return Tok.Type == TT_BinaryOperator; if (Tok.Previous->is(tok::greater) && Tok.is(tok::greater)) { return Tok.Type == TT_TemplateCloser && Tok.Previous->Type == TT_TemplateCloser && (Style.Standard != FormatStyle::LS_Cpp11 || Style.SpacesInAngles); } if (Tok.isOneOf(tok::arrowstar, tok::periodstar) || Tok.Previous->isOneOf(tok::arrowstar, tok::periodstar)) return false; if (!Style.SpaceBeforeAssignmentOperators && Tok.getPrecedence() == prec::Assignment) return false; if ((Tok.Type == TT_BinaryOperator && !Tok.Previous->is(tok::l_paren)) || Tok.Previous->Type == TT_BinaryOperator) return true; if (Tok.Previous->Type == TT_TemplateCloser && Tok.is(tok::l_paren)) return false; if (Tok.is(tok::less) && Tok.Previous->isNot(tok::l_paren) && Line.First->is(tok::hash)) return true; if (Tok.Type == TT_TrailingUnaryOperator) return false; return spaceRequiredBetween(Line, *Tok.Previous, Tok); } bool TokenAnnotator::mustBreakBefore(const AnnotatedLine &Line, const FormatToken &Right) { if (Right.is(tok::comment)) { return Right.Previous->BlockKind != BK_BracedInit && Right.Previous->Type != TT_CtorInitializerColon && Right.NewlinesBefore > 0; } else if (Right.Previous->isTrailingComment() || (Right.isStringLiteral() && Right.Previous->isStringLiteral())) { return true; } else if (Right.Previous->IsUnterminatedLiteral) { return true; } else if (Right.is(tok::lessless) && Right.Next && Right.Previous->is(tok::string_literal) && Right.Next->is(tok::string_literal)) { return true; } else if (Right.Previous->ClosesTemplateDeclaration && Right.Previous->MatchingParen && Right.Previous->MatchingParen->NestingLevel == 0 && Style.AlwaysBreakTemplateDeclarations) { return true; } else if ((Right.Type == TT_CtorInitializerComma || Right.Type == TT_CtorInitializerColon) && Style.BreakConstructorInitializersBeforeComma && !Style.ConstructorInitializerAllOnOneLineOrOnePerLine) { return true; } else if (Right.is(tok::l_brace) && (Right.BlockKind == BK_Block)) { return Style.BreakBeforeBraces == FormatStyle::BS_Allman || Style.BreakBeforeBraces == FormatStyle::BS_GNU; } else if (Right.is(tok::string_literal) && Right.TokenText.startswith("R\"")) { // Raw string literals are special wrt. line breaks. The author has made a // deliberate choice and might have aligned the contents of the string // literal accordingly. Thus, we try keep existing line breaks. return Right.NewlinesBefore > 0; } else if (Right.Previous->is(tok::l_brace) && Right.NestingLevel == 1 && Style.Language == FormatStyle::LK_Proto) { // Don't enums onto single lines in protocol buffers. return true; } return false; } bool TokenAnnotator::canBreakBefore(const AnnotatedLine &Line, const FormatToken &Right) { const FormatToken &Left = *Right.Previous; if (Left.is(tok::at)) return false; if (Right.Type == TT_StartOfName || Right.is(tok::kw_operator)) return true; if (Right.isTrailingComment()) // We rely on MustBreakBefore being set correctly here as we should not // change the "binding" behavior of a comment. // The first comment in a braced lists is always interpreted as belonging to // the first list element. Otherwise, it should be placed outside of the // list. return Left.BlockKind == BK_BracedInit; if (Left.is(tok::question) && Right.is(tok::colon)) return false; if (Right.Type == TT_ConditionalExpr || Right.is(tok::question)) return Style.BreakBeforeTernaryOperators; if (Left.Type == TT_ConditionalExpr || Left.is(tok::question)) return !Style.BreakBeforeTernaryOperators; if (Right.is(tok::colon) && (Right.Type == TT_DictLiteral || Right.Type == TT_ObjCMethodExpr)) return false; if (Right.Type == TT_InheritanceColon) return true; if (Left.is(tok::colon) && (Left.Type == TT_DictLiteral || Left.Type == TT_ObjCMethodExpr)) return true; if (Right.Type == TT_ObjCSelectorName) return true; if (Left.is(tok::r_paren) && Line.Type == LT_ObjCProperty) return true; if (Left.ClosesTemplateDeclaration) return true; if (Right.Type == TT_RangeBasedForLoopColon || Right.Type == TT_OverloadedOperatorLParen || Right.Type == TT_OverloadedOperator) return false; if (Left.Type == TT_RangeBasedForLoopColon) return true; if (Right.Type == TT_RangeBasedForLoopColon) return false; if (Left.Type == TT_PointerOrReference || Left.Type == TT_TemplateCloser || Left.Type == TT_UnaryOperator || Left.is(tok::kw_operator)) return false; if (Left.is(tok::equal) && Line.Type == LT_VirtualFunctionDecl) return false; if (Left.is(tok::l_paren) && Left.Type == TT_AttributeParen) return false; if (Left.is(tok::l_paren) && Left.Previous && (Left.Previous->Type == TT_BinaryOperator || Left.Previous->Type == TT_CastRParen)) return false; if (Right.Type == TT_ImplicitStringLiteral) return false; if (Right.is(tok::r_paren) || Right.Type == TT_TemplateCloser) return false; // We only break before r_brace if there was a corresponding break before // the l_brace, which is tracked by BreakBeforeClosingBrace. if (Right.is(tok::r_brace)) return Right.MatchingParen && Right.MatchingParen->BlockKind == BK_Block; // Allow breaking after a trailing 'const', e.g. after a method declaration, // unless it is follow by ';', '{' or '='. if (Left.is(tok::kw_const) && Left.Previous != NULL && Left.Previous->is(tok::r_paren)) return !Right.isOneOf(tok::l_brace, tok::semi, tok::equal); if (Right.is(tok::kw___attribute)) return true; if (Left.is(tok::identifier) && Right.is(tok::string_literal)) return true; if (Left.Type == TT_CtorInitializerComma && Style.BreakConstructorInitializersBeforeComma) return false; if (Right.Type == TT_CtorInitializerComma && Style.BreakConstructorInitializersBeforeComma) return true; if (Right.Type == TT_BinaryOperator && Style.BreakBeforeBinaryOperators) return true; if (Left.is(tok::greater) && Right.is(tok::greater) && Left.Type != TT_TemplateCloser) return false; if (Left.Type == TT_ArrayInitializerLSquare) return true; return (Left.isBinaryOperator() && Left.isNot(tok::lessless) && !Style.BreakBeforeBinaryOperators) || Left.isOneOf(tok::comma, tok::coloncolon, tok::semi, tok::l_brace, tok::kw_class, tok::kw_struct) || Right.isOneOf(tok::lessless, tok::arrow, tok::period, tok::colon, tok::l_square, tok::at) || (Left.is(tok::r_paren) && Right.isOneOf(tok::identifier, tok::kw_const)) || (Left.is(tok::l_paren) && !Right.is(tok::r_paren)); } void TokenAnnotator::printDebugInfo(const AnnotatedLine &Line) { llvm::errs() << "AnnotatedTokens:\n"; const FormatToken *Tok = Line.First; while (Tok) { llvm::errs() << " M=" << Tok->MustBreakBefore << " C=" << Tok->CanBreakBefore << " T=" << Tok->Type << " S=" << Tok->SpacesRequiredBefore << " P=" << Tok->SplitPenalty << " Name=" << Tok->Tok.getName() << " L=" << Tok->TotalLength << " PPK=" << Tok->PackingKind << " FakeLParens="; for (unsigned i = 0, e = Tok->FakeLParens.size(); i != e; ++i) llvm::errs() << Tok->FakeLParens[i] << "/"; llvm::errs() << " FakeRParens=" << Tok->FakeRParens << "\n"; if (Tok->Next == NULL) assert(Tok == Line.Last); Tok = Tok->Next; } llvm::errs() << "----\n"; } } // namespace format } // namespace clang @