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branch	1.1.1;
access;
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	LLVM:1.1.1;
locks; strict;
comment	@// @;


1.1
date	2013.11.28.14.14.52;	author joerg;	state Exp;
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desc
@@


1.1
log
@Initial revision
@
text
@//== TraversalChecker.cpp -------------------------------------- -*- C++ -*--=//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// These checkers print various aspects of the ExprEngine's traversal of the CFG
// as it builds the ExplodedGraph.
//
//===----------------------------------------------------------------------===//
#include "ClangSACheckers.h"
#include "clang/AST/ParentMap.h"
#include "clang/AST/StmtObjC.h"
#include "clang/StaticAnalyzer/Core/Checker.h"
#include "clang/StaticAnalyzer/Core/CheckerManager.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
#include "llvm/Support/raw_ostream.h"

using namespace clang;
using namespace ento;

namespace {
class TraversalDumper : public Checker< check::BranchCondition,
                                        check::EndFunction > {
public:
  void checkBranchCondition(const Stmt *Condition, CheckerContext &C) const;
  void checkEndFunction(CheckerContext &C) const;
};
}

void TraversalDumper::checkBranchCondition(const Stmt *Condition,
                                           CheckerContext &C) const {
  // Special-case Objective-C's for-in loop, which uses the entire loop as its
  // condition. We just print the collection expression.
  const Stmt *Parent = dyn_cast<ObjCForCollectionStmt>(Condition);
  if (!Parent) {
    const ParentMap &Parents = C.getLocationContext()->getParentMap();
    Parent = Parents.getParent(Condition);
  }

  // It is mildly evil to print directly to llvm::outs() rather than emitting
  // warnings, but this ensures things do not get filtered out by the rest of
  // the static analyzer machinery.
  SourceLocation Loc = Parent->getLocStart();
  llvm::outs() << C.getSourceManager().getSpellingLineNumber(Loc) << " "
               << Parent->getStmtClassName() << "\n";
}

void TraversalDumper::checkEndFunction(CheckerContext &C) const {
  llvm::outs() << "--END FUNCTION--\n";
}

void ento::registerTraversalDumper(CheckerManager &mgr) {
  mgr.registerChecker<TraversalDumper>();
}

//------------------------------------------------------------------------------

namespace {
class CallDumper : public Checker< check::PreCall,
                                   check::PostCall > {
public:
  void checkPreCall(const CallEvent &Call, CheckerContext &C) const;
  void checkPostCall(const CallEvent &Call, CheckerContext &C) const;
};
}

void CallDumper::checkPreCall(const CallEvent &Call, CheckerContext &C) const {
  unsigned Indentation = 0;
  for (const LocationContext *LC = C.getLocationContext()->getParent();
       LC != 0; LC = LC->getParent())
    ++Indentation;

  // It is mildly evil to print directly to llvm::outs() rather than emitting
  // warnings, but this ensures things do not get filtered out by the rest of
  // the static analyzer machinery.
  llvm::outs().indent(Indentation);
  Call.dump(llvm::outs());
}

void CallDumper::checkPostCall(const CallEvent &Call, CheckerContext &C) const {
  const Expr *CallE = Call.getOriginExpr();
  if (!CallE)
    return;

  unsigned Indentation = 0;
  for (const LocationContext *LC = C.getLocationContext()->getParent();
       LC != 0; LC = LC->getParent())
    ++Indentation;

  // It is mildly evil to print directly to llvm::outs() rather than emitting
  // warnings, but this ensures things do not get filtered out by the rest of
  // the static analyzer machinery.
  llvm::outs().indent(Indentation);
  if (Call.getResultType()->isVoidType())
    llvm::outs() << "Returning void\n";
  else
    llvm::outs() << "Returning " << C.getSVal(CallE) << "\n";
}

void ento::registerCallDumper(CheckerManager &mgr) {
  mgr.registerChecker<CallDumper>();
}
@


1.1.1.1
log
@Import Clang 3.4rc1 r195771.
@
text
@@


1.1.1.1.2.1
log
@Rebase.
@
text
@d75 1
a75 1
       LC != nullptr; LC = LC->getParent())
d92 1
a92 1
       LC != nullptr; LC = LC->getParent())
@


1.1.1.2
log
@Import Clang 3.5svn r209886.
@
text
@d75 1
a75 1
       LC != nullptr; LC = LC->getParent())
d92 1
a92 1
       LC != nullptr; LC = LC->getParent())
@


1.1.1.2.8.1
log
@Sync with HEAD
@
text
@a27 1
                                        check::BeginFunction,
a30 1
  void checkBeginFunction(CheckerContext &C) const;
a52 4
void TraversalDumper::checkBeginFunction(CheckerContext &C) const {
  llvm::outs() << "--BEGIN FUNCTION--\n";
}

@


1.1.1.3
log
@Import Clang pre-4.0.0 r291444.
@
text
@a27 1
                                        check::BeginFunction,
a30 1
  void checkBeginFunction(CheckerContext &C) const;
a52 4
void TraversalDumper::checkBeginFunction(CheckerContext &C) const {
  llvm::outs() << "--BEGIN FUNCTION--\n";
}

@


1.1.1.3.14.1
log
@Sync with HEAD
@
text
@d33 1
a33 1
  void checkEndFunction(const ReturnStmt *RS, CheckerContext &C) const;
d59 1
a59 2
void TraversalDumper::checkEndFunction(const ReturnStmt *RS,
                                       CheckerContext &C) const {
@


1.1.1.3.14.2
log
@Mostly merge changes from HEAD upto 20200411
@
text
@@


1.1.1.3.12.1
log
@Sync with HEAD
@
text
@d33 1
a33 1
  void checkEndFunction(const ReturnStmt *RS, CheckerContext &C) const;
d59 1
a59 2
void TraversalDumper::checkEndFunction(const ReturnStmt *RS,
                                       CheckerContext &C) const {
@


1.1.1.4
log
@Import clang r337282 from trunk
@
text
@d33 1
a33 1
  void checkEndFunction(const ReturnStmt *RS, CheckerContext &C) const;
d59 1
a59 2
void TraversalDumper::checkEndFunction(const ReturnStmt *RS,
                                       CheckerContext &C) const {
@


1.1.1.5
log
@Mark old LLVM instance as dead.
@
text
@@


1.1.1.2.4.1
log
@file TraversalChecker.cpp was added on branch tls-maxphys on 2014-08-19 23:47:31 +0000
@
text
@d1 107
@


1.1.1.2.4.2
log
@Rebase to HEAD as of a few days ago.
@
text
@a0 107
//== TraversalChecker.cpp -------------------------------------- -*- C++ -*--=//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// These checkers print various aspects of the ExprEngine's traversal of the CFG
// as it builds the ExplodedGraph.
//
//===----------------------------------------------------------------------===//
#include "ClangSACheckers.h"
#include "clang/AST/ParentMap.h"
#include "clang/AST/StmtObjC.h"
#include "clang/StaticAnalyzer/Core/Checker.h"
#include "clang/StaticAnalyzer/Core/CheckerManager.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
#include "llvm/Support/raw_ostream.h"

using namespace clang;
using namespace ento;

namespace {
class TraversalDumper : public Checker< check::BranchCondition,
                                        check::EndFunction > {
public:
  void checkBranchCondition(const Stmt *Condition, CheckerContext &C) const;
  void checkEndFunction(CheckerContext &C) const;
};
}

void TraversalDumper::checkBranchCondition(const Stmt *Condition,
                                           CheckerContext &C) const {
  // Special-case Objective-C's for-in loop, which uses the entire loop as its
  // condition. We just print the collection expression.
  const Stmt *Parent = dyn_cast<ObjCForCollectionStmt>(Condition);
  if (!Parent) {
    const ParentMap &Parents = C.getLocationContext()->getParentMap();
    Parent = Parents.getParent(Condition);
  }

  // It is mildly evil to print directly to llvm::outs() rather than emitting
  // warnings, but this ensures things do not get filtered out by the rest of
  // the static analyzer machinery.
  SourceLocation Loc = Parent->getLocStart();
  llvm::outs() << C.getSourceManager().getSpellingLineNumber(Loc) << " "
               << Parent->getStmtClassName() << "\n";
}

void TraversalDumper::checkEndFunction(CheckerContext &C) const {
  llvm::outs() << "--END FUNCTION--\n";
}

void ento::registerTraversalDumper(CheckerManager &mgr) {
  mgr.registerChecker<TraversalDumper>();
}

//------------------------------------------------------------------------------

namespace {
class CallDumper : public Checker< check::PreCall,
                                   check::PostCall > {
public:
  void checkPreCall(const CallEvent &Call, CheckerContext &C) const;
  void checkPostCall(const CallEvent &Call, CheckerContext &C) const;
};
}

void CallDumper::checkPreCall(const CallEvent &Call, CheckerContext &C) const {
  unsigned Indentation = 0;
  for (const LocationContext *LC = C.getLocationContext()->getParent();
       LC != nullptr; LC = LC->getParent())
    ++Indentation;

  // It is mildly evil to print directly to llvm::outs() rather than emitting
  // warnings, but this ensures things do not get filtered out by the rest of
  // the static analyzer machinery.
  llvm::outs().indent(Indentation);
  Call.dump(llvm::outs());
}

void CallDumper::checkPostCall(const CallEvent &Call, CheckerContext &C) const {
  const Expr *CallE = Call.getOriginExpr();
  if (!CallE)
    return;

  unsigned Indentation = 0;
  for (const LocationContext *LC = C.getLocationContext()->getParent();
       LC != nullptr; LC = LC->getParent())
    ++Indentation;

  // It is mildly evil to print directly to llvm::outs() rather than emitting
  // warnings, but this ensures things do not get filtered out by the rest of
  // the static analyzer machinery.
  llvm::outs().indent(Indentation);
  if (Call.getResultType()->isVoidType())
    llvm::outs() << "Returning void\n";
  else
    llvm::outs() << "Returning " << C.getSVal(CallE) << "\n";
}

void ento::registerCallDumper(CheckerManager &mgr) {
  mgr.registerChecker<CallDumper>();
}
@


1.1.1.1.4.1
log
@file TraversalChecker.cpp was added on branch yamt-pagecache on 2014-05-22 16:18:31 +0000
@
text
@d1 107
@


1.1.1.1.4.2
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 107
//== TraversalChecker.cpp -------------------------------------- -*- C++ -*--=//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// These checkers print various aspects of the ExprEngine's traversal of the CFG
// as it builds the ExplodedGraph.
//
//===----------------------------------------------------------------------===//
#include "ClangSACheckers.h"
#include "clang/AST/ParentMap.h"
#include "clang/AST/StmtObjC.h"
#include "clang/StaticAnalyzer/Core/Checker.h"
#include "clang/StaticAnalyzer/Core/CheckerManager.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
#include "llvm/Support/raw_ostream.h"

using namespace clang;
using namespace ento;

namespace {
class TraversalDumper : public Checker< check::BranchCondition,
                                        check::EndFunction > {
public:
  void checkBranchCondition(const Stmt *Condition, CheckerContext &C) const;
  void checkEndFunction(CheckerContext &C) const;
};
}

void TraversalDumper::checkBranchCondition(const Stmt *Condition,
                                           CheckerContext &C) const {
  // Special-case Objective-C's for-in loop, which uses the entire loop as its
  // condition. We just print the collection expression.
  const Stmt *Parent = dyn_cast<ObjCForCollectionStmt>(Condition);
  if (!Parent) {
    const ParentMap &Parents = C.getLocationContext()->getParentMap();
    Parent = Parents.getParent(Condition);
  }

  // It is mildly evil to print directly to llvm::outs() rather than emitting
  // warnings, but this ensures things do not get filtered out by the rest of
  // the static analyzer machinery.
  SourceLocation Loc = Parent->getLocStart();
  llvm::outs() << C.getSourceManager().getSpellingLineNumber(Loc) << " "
               << Parent->getStmtClassName() << "\n";
}

void TraversalDumper::checkEndFunction(CheckerContext &C) const {
  llvm::outs() << "--END FUNCTION--\n";
}

void ento::registerTraversalDumper(CheckerManager &mgr) {
  mgr.registerChecker<TraversalDumper>();
}

//------------------------------------------------------------------------------

namespace {
class CallDumper : public Checker< check::PreCall,
                                   check::PostCall > {
public:
  void checkPreCall(const CallEvent &Call, CheckerContext &C) const;
  void checkPostCall(const CallEvent &Call, CheckerContext &C) const;
};
}

void CallDumper::checkPreCall(const CallEvent &Call, CheckerContext &C) const {
  unsigned Indentation = 0;
  for (const LocationContext *LC = C.getLocationContext()->getParent();
       LC != 0; LC = LC->getParent())
    ++Indentation;

  // It is mildly evil to print directly to llvm::outs() rather than emitting
  // warnings, but this ensures things do not get filtered out by the rest of
  // the static analyzer machinery.
  llvm::outs().indent(Indentation);
  Call.dump(llvm::outs());
}

void CallDumper::checkPostCall(const CallEvent &Call, CheckerContext &C) const {
  const Expr *CallE = Call.getOriginExpr();
  if (!CallE)
    return;

  unsigned Indentation = 0;
  for (const LocationContext *LC = C.getLocationContext()->getParent();
       LC != 0; LC = LC->getParent())
    ++Indentation;

  // It is mildly evil to print directly to llvm::outs() rather than emitting
  // warnings, but this ensures things do not get filtered out by the rest of
  // the static analyzer machinery.
  llvm::outs().indent(Indentation);
  if (Call.getResultType()->isVoidType())
    llvm::outs() << "Returning void\n";
  else
    llvm::outs() << "Returning " << C.getSVal(CallE) << "\n";
}

void ento::registerCallDumper(CheckerManager &mgr) {
  mgr.registerChecker<CallDumper>();
}
@