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//===- AnalysisOrderChecker - Print callbacks called ------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This checker prints callbacks that are called during analysis.
// This is required to ensure that callbacks are fired in order
// and do not duplicate or get lost.
// Feel free to extend this checker with any callback you need to check.
//
//===----------------------------------------------------------------------===//
#include "ClangSACheckers.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 AnalysisOrderChecker
: public Checker<check::PreStmt<CastExpr>,
check::PostStmt<CastExpr>,
check::PreStmt<ArraySubscriptExpr>,
check::PostStmt<ArraySubscriptExpr>,
check::Bind,
check::RegionChanges> {
bool isCallbackEnabled(AnalyzerOptions &Opts, StringRef CallbackName) const {
return Opts.getBooleanOption("*", false, this) ||
Opts.getBooleanOption(CallbackName, false, this);
}
bool isCallbackEnabled(CheckerContext &C, StringRef CallbackName) const {
AnalyzerOptions &Opts = C.getAnalysisManager().getAnalyzerOptions();
return isCallbackEnabled(Opts, CallbackName);
}
bool isCallbackEnabled(ProgramStateRef State, StringRef CallbackName) const {
AnalyzerOptions &Opts = State->getStateManager().getOwningEngine()
->getAnalysisManager().getAnalyzerOptions();
return isCallbackEnabled(Opts, CallbackName);
}
public:
void checkPreStmt(const CastExpr *CE, CheckerContext &C) const {
if (isCallbackEnabled(C, "PreStmtCastExpr"))
llvm::errs() << "PreStmt<CastExpr> (Kind : " << CE->getCastKindName()
<< ")\n";
}
void checkPostStmt(const CastExpr *CE, CheckerContext &C) const {
if (isCallbackEnabled(C, "PostStmtCastExpr"))
llvm::errs() << "PostStmt<CastExpr> (Kind : " << CE->getCastKindName()
<< ")\n";
}
void checkPreStmt(const ArraySubscriptExpr *SubExpr,
CheckerContext &C) const {
if (isCallbackEnabled(C, "PreStmtArraySubscriptExpr"))
llvm::errs() << "PreStmt<ArraySubscriptExpr>\n";
}
void checkPostStmt(const ArraySubscriptExpr *SubExpr,
CheckerContext &C) const {
if (isCallbackEnabled(C, "PostStmtArraySubscriptExpr"))
llvm::errs() << "PostStmt<ArraySubscriptExpr>\n";
}
void checkBind(SVal Loc, SVal Val, const Stmt *S, CheckerContext &C) const {
if (isCallbackEnabled(C, "Bind"))
llvm::errs() << "Bind\n";
}
ProgramStateRef
checkRegionChanges(ProgramStateRef State,
const InvalidatedSymbols *Invalidated,
ArrayRef<const MemRegion *> ExplicitRegions,
ArrayRef<const MemRegion *> Regions,
const LocationContext *LCtx, const CallEvent *Call) const {
if (isCallbackEnabled(State, "RegionChanges"))
llvm::errs() << "RegionChanges\n";
return State;
}
};
} // end anonymous namespace
//===----------------------------------------------------------------------===//
// Registration.
//===----------------------------------------------------------------------===//
void ento::registerAnalysisOrderChecker(CheckerManager &mgr) {
mgr.registerChecker<AnalysisOrderChecker>();
}
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