head 1.1; branch 1.1.1; access; symbols netbsd-11-0-RC4:1.1.1.8 netbsd-11-0-RC3:1.1.1.8 netbsd-11-0-RC2:1.1.1.8 netbsd-11-0-RC1:1.1.1.8 perseant-exfatfs-base-20250801:1.1.1.8 netbsd-11:1.1.1.8.0.10 netbsd-11-base:1.1.1.8 netbsd-10-1-RELEASE:1.1.1.8 perseant-exfatfs-base-20240630:1.1.1.8 perseant-exfatfs:1.1.1.8.0.8 perseant-exfatfs-base:1.1.1.8 netbsd-8-3-RELEASE:1.1.1.5 netbsd-9-4-RELEASE:1.1.1.7 netbsd-10-0-RELEASE:1.1.1.8 netbsd-10-0-RC6:1.1.1.8 netbsd-10-0-RC5:1.1.1.8 netbsd-10-0-RC4:1.1.1.8 netbsd-10-0-RC3:1.1.1.8 netbsd-10-0-RC2:1.1.1.8 netbsd-10-0-RC1:1.1.1.8 netbsd-10:1.1.1.8.0.6 netbsd-10-base:1.1.1.8 netbsd-9-3-RELEASE:1.1.1.7 cjep_sun2x:1.1.1.8.0.4 cjep_sun2x-base:1.1.1.8 cjep_staticlib_x-base1:1.1.1.8 netbsd-9-2-RELEASE:1.1.1.7 cjep_staticlib_x:1.1.1.8.0.2 cjep_staticlib_x-base:1.1.1.8 netbsd-9-1-RELEASE:1.1.1.7 phil-wifi-20200421:1.1.1.8 phil-wifi-20200411:1.1.1.8 phil-wifi-20200406:1.1.1.8 netbsd-8-2-RELEASE:1.1.1.5 netbsd-9-0-RELEASE:1.1.1.7 netbsd-9-0-RC2:1.1.1.7 netbsd-9-0-RC1:1.1.1.7 netbsd-9:1.1.1.7.0.2 netbsd-9-base:1.1.1.7 phil-wifi-20190609:1.1.1.7 netbsd-8-1-RELEASE:1.1.1.5 netbsd-8-1-RC1:1.1.1.5 pgoyette-compat-merge-20190127:1.1.1.6.2.1 pgoyette-compat-20190127:1.1.1.7 pgoyette-compat-20190118:1.1.1.7 pgoyette-compat-1226:1.1.1.7 pgoyette-compat-1126:1.1.1.7 pgoyette-compat-1020:1.1.1.7 pgoyette-compat-0930:1.1.1.7 pgoyette-compat-0906:1.1.1.7 netbsd-7-2-RELEASE:1.1.1.3 pgoyette-compat-0728:1.1.1.7 clang-337282:1.1.1.7 netbsd-8-0-RELEASE:1.1.1.5 phil-wifi:1.1.1.6.0.4 phil-wifi-base:1.1.1.6 pgoyette-compat-0625:1.1.1.6 netbsd-8-0-RC2:1.1.1.5 pgoyette-compat-0521:1.1.1.6 pgoyette-compat-0502:1.1.1.6 pgoyette-compat-0422:1.1.1.6 netbsd-8-0-RC1:1.1.1.5 pgoyette-compat-0415:1.1.1.6 pgoyette-compat-0407:1.1.1.6 pgoyette-compat-0330:1.1.1.6 pgoyette-compat-0322:1.1.1.6 pgoyette-compat-0315:1.1.1.6 netbsd-7-1-2-RELEASE:1.1.1.3 pgoyette-compat:1.1.1.6.0.2 pgoyette-compat-base:1.1.1.6 netbsd-7-1-1-RELEASE:1.1.1.3 clang-319952:1.1.1.6 matt-nb8-mediatek:1.1.1.5.0.10 matt-nb8-mediatek-base:1.1.1.5 clang-309604:1.1.1.6 perseant-stdc-iso10646:1.1.1.5.0.8 perseant-stdc-iso10646-base:1.1.1.5 netbsd-8:1.1.1.5.0.6 netbsd-8-base:1.1.1.5 prg-localcount2-base3:1.1.1.5 prg-localcount2-base2:1.1.1.5 prg-localcount2-base1:1.1.1.5 prg-localcount2:1.1.1.5.0.4 prg-localcount2-base:1.1.1.5 pgoyette-localcount-20170426:1.1.1.5 bouyer-socketcan-base1:1.1.1.5 pgoyette-localcount-20170320:1.1.1.5 netbsd-7-1:1.1.1.3.0.10 netbsd-7-1-RELEASE:1.1.1.3 netbsd-7-1-RC2:1.1.1.3 clang-294123:1.1.1.5 netbsd-7-nhusb-base-20170116:1.1.1.3 bouyer-socketcan:1.1.1.5.0.2 bouyer-socketcan-base:1.1.1.5 clang-291444:1.1.1.5 pgoyette-localcount-20170107:1.1.1.4 netbsd-7-1-RC1:1.1.1.3 pgoyette-localcount-20161104:1.1.1.4 netbsd-7-0-2-RELEASE:1.1.1.3 localcount-20160914:1.1.1.4 netbsd-7-nhusb:1.1.1.3.0.8 netbsd-7-nhusb-base:1.1.1.3 clang-280599:1.1.1.4 pgoyette-localcount-20160806:1.1.1.4 pgoyette-localcount-20160726:1.1.1.4 pgoyette-localcount:1.1.1.4.0.2 pgoyette-localcount-base:1.1.1.4 netbsd-7-0-1-RELEASE:1.1.1.3 clang-261930:1.1.1.4 netbsd-7-0:1.1.1.3.0.6 netbsd-7-0-RELEASE:1.1.1.3 netbsd-7-0-RC3:1.1.1.3 netbsd-7-0-RC2:1.1.1.3 netbsd-7-0-RC1:1.1.1.3 clang-237755:1.1.1.3 clang-232565:1.1.1.3 clang-227398:1.1.1.3 tls-maxphys-base:1.1.1.3 tls-maxphys:1.1.1.3.0.4 netbsd-7:1.1.1.3.0.2 netbsd-7-base:1.1.1.3 clang-215315:1.1.1.3 clang-209886:1.1.1.3 yamt-pagecache:1.1.1.2.0.4 yamt-pagecache-base9:1.1.1.2 tls-earlyentropy:1.1.1.2.0.2 tls-earlyentropy-base:1.1.1.3 riastradh-xf86-video-intel-2-7-1-pre-2-21-15:1.1.1.2 riastradh-drm2-base3:1.1.1.2 clang-202566:1.1.1.2 clang-201163:1.1.1.1 clang-199312:1.1.1.1 clang-198450:1.1.1.1 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 2014.03.04.19.55.00; author joerg; state Exp; branches 1.1.1.2.2.1 1.1.1.2.4.1; next 1.1.1.3; commitid 29z1hJonZISIXprx; 1.1.1.3 date 2014.05.30.18.14.44; author joerg; state Exp; branches 1.1.1.3.4.1; next 1.1.1.4; commitid 8q0kdlBlCn09GACx; 1.1.1.4 date 2016.02.27.22.12.06; author joerg; state Exp; branches 1.1.1.4.2.1; next 1.1.1.5; commitid tIimz3oDlh1NpBWy; 1.1.1.5 date 2017.01.11.10.35.37; author joerg; state Exp; branches; next 1.1.1.6; commitid CNnUNfII1jgNmxBz; 1.1.1.6 date 2017.08.01.19.35.16; author joerg; state Exp; branches 1.1.1.6.2.1 1.1.1.6.4.1; next 1.1.1.7; commitid pMuDy65V0VicSx1A; 1.1.1.7 date 2018.07.17.18.31.07; author joerg; state Exp; branches; next 1.1.1.8; commitid wDzL46ALjrCZgwKA; 1.1.1.8 date 2019.11.13.22.19.28; author joerg; state dead; branches; next ; commitid QD8YATxuNG34YJKB; 1.1.1.2.2.1 date 2014.08.10.07.08.10; author tls; state Exp; branches; next ; commitid t01A1TLTYxkpGMLx; 1.1.1.2.4.1 date 2014.03.04.19.55.00; author yamt; state dead; branches; next 1.1.1.2.4.2; commitid WSrDtL5nYAUyiyBx; 1.1.1.2.4.2 date 2014.05.22.16.18.30; author yamt; state Exp; branches; next ; commitid WSrDtL5nYAUyiyBx; 1.1.1.3.4.1 date 2014.05.30.18.14.44; author tls; state dead; branches; next 1.1.1.3.4.2; commitid jTnpym9Qu0o4R1Nx; 1.1.1.3.4.2 date 2014.08.19.23.47.31; author tls; state Exp; branches; next ; commitid jTnpym9Qu0o4R1Nx; 1.1.1.4.2.1 date 2017.03.20.06.52.42; author pgoyette; state Exp; branches; next ; commitid jjw7cAwgyKq7RfKz; 1.1.1.6.2.1 date 2018.07.28.04.33.23; author pgoyette; state Exp; branches; next ; commitid 1UP1xAIUxv1ZgRLA; 1.1.1.6.4.1 date 2019.06.10.21.45.28; author christos; state Exp; branches; next 1.1.1.6.4.2; commitid jtc8rnCzWiEEHGqB; 1.1.1.6.4.2 date 2020.04.13.07.46.38; author martin; state dead; branches; next ; commitid X01YhRUPVUDaec4C; desc @@ 1.1 log @Initial revision @ text @//=== CastToStructChecker.cpp - Fixed address usage checker ----*- C++ -*--===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // This files defines CastToStructChecker, a builtin checker that checks for // cast from non-struct pointer to struct pointer. // This check corresponds to CWE-588. // //===----------------------------------------------------------------------===// #include "ClangSACheckers.h" #include "clang/StaticAnalyzer/Core/BugReporter/BugType.h" #include "clang/StaticAnalyzer/Core/Checker.h" #include "clang/StaticAnalyzer/Core/CheckerManager.h" #include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h" using namespace clang; using namespace ento; namespace { class CastToStructChecker : public Checker< check::PreStmt > { mutable OwningPtr BT; public: void checkPreStmt(const CastExpr *CE, CheckerContext &C) const; }; } void CastToStructChecker::checkPreStmt(const CastExpr *CE, CheckerContext &C) const { const Expr *E = CE->getSubExpr(); ASTContext &Ctx = C.getASTContext(); QualType OrigTy = Ctx.getCanonicalType(E->getType()); QualType ToTy = Ctx.getCanonicalType(CE->getType()); const PointerType *OrigPTy = dyn_cast(OrigTy.getTypePtr()); const PointerType *ToPTy = dyn_cast(ToTy.getTypePtr()); if (!ToPTy || !OrigPTy) return; QualType OrigPointeeTy = OrigPTy->getPointeeType(); QualType ToPointeeTy = ToPTy->getPointeeType(); if (!ToPointeeTy->isStructureOrClassType()) return; // We allow cast from void*. if (OrigPointeeTy->isVoidType()) return; // Now the cast-to-type is struct pointer, the original type is not void*. if (!OrigPointeeTy->isRecordType()) { if (ExplodedNode *N = C.addTransition()) { if (!BT) BT.reset(new BuiltinBug("Cast from non-struct type to struct type", "Casting a non-structure type to a structure type " "and accessing a field can lead to memory access " "errors or data corruption.")); BugReport *R = new BugReport(*BT,BT->getDescription(), N); R->addRange(CE->getSourceRange()); C.emitReport(R); } } } void ento::registerCastToStructChecker(CheckerManager &mgr) { mgr.registerChecker(); } @ 1.1.1.1 log @Import Clang 3.4rc1 r195771. @ text @@ 1.1.1.2 log @Import Clang 3.5svn r202566. @ text @d61 4 a64 5 BT.reset( new BuiltinBug(this, "Cast from non-struct type to struct type", "Casting a non-structure type to a structure type " "and accessing a field can lead to memory access " "errors or data corruption.")); @ 1.1.1.2.2.1 log @Rebase. @ text @d27 1 a27 1 mutable std::unique_ptr BT; @ 1.1.1.3 log @Import Clang 3.5svn r209886. @ text @d27 1 a27 1 mutable std::unique_ptr BT; @ 1.1.1.4 log @Import Clang 3.8.0rc3 r261930. @ text @d59 1 a59 1 if (ExplodedNode *N = C.generateNonFatalErrorNode()) { d66 1 a66 1 auto R = llvm::make_unique(*BT, BT->getDescription(), N); d68 1 a68 1 C.emitReport(std::move(R)); @ 1.1.1.4.2.1 log @Sync with HEAD @ text @d1 1 a1 1 //=== CastToStructChecker.cpp ----------------------------------*- C++ -*--===// d11 1 a11 1 // cast from non-struct pointer to struct pointer and widening struct data cast. a16 1 #include "clang/AST/RecursiveASTVisitor.h" d26 2 a27 4 class CastToStructVisitor : public RecursiveASTVisitor { BugReporter &BR; const CheckerBase *Checker; AnalysisDeclContext *AC; d30 1 a30 4 explicit CastToStructVisitor(BugReporter &B, const CheckerBase *Checker, AnalysisDeclContext *A) : BR(B), Checker(Checker), AC(A) {} bool VisitCastExpr(const CastExpr *CE); d34 2 a35 1 bool CastToStructVisitor::VisitCastExpr(const CastExpr *CE) { d37 1 a37 1 ASTContext &Ctx = AC->getASTContext(); d45 1 a45 1 return true; d51 1 a51 1 return true; d55 1 a55 1 return true; d59 11 a69 36 SourceRange Sr[1] = {CE->getSourceRange()}; PathDiagnosticLocation Loc(CE, BR.getSourceManager(), AC); BR.EmitBasicReport( AC->getDecl(), Checker, "Cast from non-struct type to struct type", categories::LogicError, "Casting a non-structure type to a structure " "type and accessing a field can lead to memory " "access errors or data corruption.", Loc, Sr); } else { // Don't warn when size of data is unknown. const auto *U = dyn_cast(E); if (!U || U->getOpcode() != UO_AddrOf) return true; // Don't warn for references const ValueDecl *VD = nullptr; if (const auto *SE = dyn_cast(U->getSubExpr())) VD = dyn_cast(SE->getDecl()); else if (const auto *SE = dyn_cast(U->getSubExpr())) VD = SE->getMemberDecl(); if (!VD || VD->getType()->isReferenceType()) return true; // Warn when there is widening cast. unsigned ToWidth = Ctx.getTypeInfo(ToPointeeTy).Width; unsigned OrigWidth = Ctx.getTypeInfo(OrigPointeeTy).Width; if (ToWidth <= OrigWidth) return true; PathDiagnosticLocation Loc(CE, BR.getSourceManager(), AC); BR.EmitBasicReport(AC->getDecl(), Checker, "Widening cast to struct type", categories::LogicError, "Casting data to a larger structure type and accessing " "a field can lead to memory access errors or data " "corruption.", Loc, CE->getSourceRange()); a70 2 return true; a72 11 namespace { class CastToStructChecker : public Checker { public: void checkASTCodeBody(const Decl *D, AnalysisManager &Mgr, BugReporter &BR) const { CastToStructVisitor Visitor(BR, this, Mgr.getAnalysisDeclContext(D)); Visitor.TraverseDecl(const_cast(D)); } }; } // end anonymous namespace @ 1.1.1.5 log @Import Clang pre-4.0.0 r291444. @ text @d1 1 a1 1 //=== CastToStructChecker.cpp ----------------------------------*- C++ -*--===// d11 1 a11 1 // cast from non-struct pointer to struct pointer and widening struct data cast. a16 1 #include "clang/AST/RecursiveASTVisitor.h" d26 2 a27 4 class CastToStructVisitor : public RecursiveASTVisitor { BugReporter &BR; const CheckerBase *Checker; AnalysisDeclContext *AC; d30 1 a30 4 explicit CastToStructVisitor(BugReporter &B, const CheckerBase *Checker, AnalysisDeclContext *A) : BR(B), Checker(Checker), AC(A) {} bool VisitCastExpr(const CastExpr *CE); d34 2 a35 1 bool CastToStructVisitor::VisitCastExpr(const CastExpr *CE) { d37 1 a37 1 ASTContext &Ctx = AC->getASTContext(); d45 1 a45 1 return true; d51 1 a51 1 return true; d55 1 a55 1 return true; d59 11 a69 36 SourceRange Sr[1] = {CE->getSourceRange()}; PathDiagnosticLocation Loc(CE, BR.getSourceManager(), AC); BR.EmitBasicReport( AC->getDecl(), Checker, "Cast from non-struct type to struct type", categories::LogicError, "Casting a non-structure type to a structure " "type and accessing a field can lead to memory " "access errors or data corruption.", Loc, Sr); } else { // Don't warn when size of data is unknown. const auto *U = dyn_cast(E); if (!U || U->getOpcode() != UO_AddrOf) return true; // Don't warn for references const ValueDecl *VD = nullptr; if (const auto *SE = dyn_cast(U->getSubExpr())) VD = dyn_cast(SE->getDecl()); else if (const auto *SE = dyn_cast(U->getSubExpr())) VD = SE->getMemberDecl(); if (!VD || VD->getType()->isReferenceType()) return true; // Warn when there is widening cast. unsigned ToWidth = Ctx.getTypeInfo(ToPointeeTy).Width; unsigned OrigWidth = Ctx.getTypeInfo(OrigPointeeTy).Width; if (ToWidth <= OrigWidth) return true; PathDiagnosticLocation Loc(CE, BR.getSourceManager(), AC); BR.EmitBasicReport(AC->getDecl(), Checker, "Widening cast to struct type", categories::LogicError, "Casting data to a larger structure type and accessing " "a field can lead to memory access errors or data " "corruption.", Loc, CE->getSourceRange()); a70 2 return true; a72 11 namespace { class CastToStructChecker : public Checker { public: void checkASTCodeBody(const Decl *D, AnalysisManager &Mgr, BugReporter &BR) const { CastToStructVisitor Visitor(BR, this, Mgr.getAnalysisDeclContext(D)); Visitor.TraverseDecl(const_cast(D)); } }; } // end anonymous namespace @ 1.1.1.6 log @Import clang r309604 from branches/release_50 @ text @a86 4 if (ToPointeeTy->isIncompleteType() || OrigPointeeTy->isIncompleteType()) return true; @ 1.1.1.6.4.1 log @Sync with HEAD @ text @d81 1 a81 1 VD = SE->getDecl(); @ 1.1.1.6.4.2 log @Mostly merge changes from HEAD upto 20200411 @ text @@ 1.1.1.6.2.1 log @Sync with HEAD @ text @d81 1 a81 1 VD = SE->getDecl(); @ 1.1.1.7 log @Import clang r337282 from trunk @ text @d81 1 a81 1 VD = SE->getDecl(); @ 1.1.1.8 log @Mark old LLVM instance as dead. @ text @@ 1.1.1.3.4.1 log @file CastToStructChecker.cpp was added on branch tls-maxphys on 2014-08-19 23:47:31 +0000 @ text @d1 75 @ 1.1.1.3.4.2 log @Rebase to HEAD as of a few days ago. @ text @a0 75 //=== CastToStructChecker.cpp - Fixed address usage checker ----*- C++ -*--===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // This files defines CastToStructChecker, a builtin checker that checks for // cast from non-struct pointer to struct pointer. // This check corresponds to CWE-588. // //===----------------------------------------------------------------------===// #include "ClangSACheckers.h" #include "clang/StaticAnalyzer/Core/BugReporter/BugType.h" #include "clang/StaticAnalyzer/Core/Checker.h" #include "clang/StaticAnalyzer/Core/CheckerManager.h" #include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h" using namespace clang; using namespace ento; namespace { class CastToStructChecker : public Checker< check::PreStmt > { mutable std::unique_ptr BT; public: void checkPreStmt(const CastExpr *CE, CheckerContext &C) const; }; } void CastToStructChecker::checkPreStmt(const CastExpr *CE, CheckerContext &C) const { const Expr *E = CE->getSubExpr(); ASTContext &Ctx = C.getASTContext(); QualType OrigTy = Ctx.getCanonicalType(E->getType()); QualType ToTy = Ctx.getCanonicalType(CE->getType()); const PointerType *OrigPTy = dyn_cast(OrigTy.getTypePtr()); const PointerType *ToPTy = dyn_cast(ToTy.getTypePtr()); if (!ToPTy || !OrigPTy) return; QualType OrigPointeeTy = OrigPTy->getPointeeType(); QualType ToPointeeTy = ToPTy->getPointeeType(); if (!ToPointeeTy->isStructureOrClassType()) return; // We allow cast from void*. if (OrigPointeeTy->isVoidType()) return; // Now the cast-to-type is struct pointer, the original type is not void*. if (!OrigPointeeTy->isRecordType()) { if (ExplodedNode *N = C.addTransition()) { if (!BT) BT.reset( new BuiltinBug(this, "Cast from non-struct type to struct type", "Casting a non-structure type to a structure type " "and accessing a field can lead to memory access " "errors or data corruption.")); BugReport *R = new BugReport(*BT,BT->getDescription(), N); R->addRange(CE->getSourceRange()); C.emitReport(R); } } } void ento::registerCastToStructChecker(CheckerManager &mgr) { mgr.registerChecker(); } @ 1.1.1.2.4.1 log @file CastToStructChecker.cpp was added on branch yamt-pagecache on 2014-05-22 16:18:30 +0000 @ text @d1 75 @ 1.1.1.2.4.2 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 75 //=== CastToStructChecker.cpp - Fixed address usage checker ----*- C++ -*--===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // This files defines CastToStructChecker, a builtin checker that checks for // cast from non-struct pointer to struct pointer. // This check corresponds to CWE-588. // //===----------------------------------------------------------------------===// #include "ClangSACheckers.h" #include "clang/StaticAnalyzer/Core/BugReporter/BugType.h" #include "clang/StaticAnalyzer/Core/Checker.h" #include "clang/StaticAnalyzer/Core/CheckerManager.h" #include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h" using namespace clang; using namespace ento; namespace { class CastToStructChecker : public Checker< check::PreStmt > { mutable OwningPtr BT; public: void checkPreStmt(const CastExpr *CE, CheckerContext &C) const; }; } void CastToStructChecker::checkPreStmt(const CastExpr *CE, CheckerContext &C) const { const Expr *E = CE->getSubExpr(); ASTContext &Ctx = C.getASTContext(); QualType OrigTy = Ctx.getCanonicalType(E->getType()); QualType ToTy = Ctx.getCanonicalType(CE->getType()); const PointerType *OrigPTy = dyn_cast(OrigTy.getTypePtr()); const PointerType *ToPTy = dyn_cast(ToTy.getTypePtr()); if (!ToPTy || !OrigPTy) return; QualType OrigPointeeTy = OrigPTy->getPointeeType(); QualType ToPointeeTy = ToPTy->getPointeeType(); if (!ToPointeeTy->isStructureOrClassType()) return; // We allow cast from void*. if (OrigPointeeTy->isVoidType()) return; // Now the cast-to-type is struct pointer, the original type is not void*. if (!OrigPointeeTy->isRecordType()) { if (ExplodedNode *N = C.addTransition()) { if (!BT) BT.reset( new BuiltinBug(this, "Cast from non-struct type to struct type", "Casting a non-structure type to a structure type " "and accessing a field can lead to memory access " "errors or data corruption.")); BugReport *R = new BugReport(*BT,BT->getDescription(), N); R->addRange(CE->getSourceRange()); C.emitReport(R); } } } void ento::registerCastToStructChecker(CheckerManager &mgr) { mgr.registerChecker(); } @