1 //===- AnalysisOrderChecker - Print callbacks called ------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This checker prints callbacks that are called during analysis.
11 // This is required to ensure that callbacks are fired in order
12 // and do not duplicate or get lost.
13 // Feel free to extend this checker with any callback you need to check.
15 //===----------------------------------------------------------------------===//
17 #include "ClangSACheckers.h"
18 #include "clang/AST/ExprCXX.h"
19 #include "clang/StaticAnalyzer/Core/Checker.h"
20 #include "clang/StaticAnalyzer/Core/CheckerManager.h"
21 #include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
22 #include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
24 using namespace clang;
29 class AnalysisOrderChecker
30 : public Checker<check::PreStmt<CastExpr>,
31 check::PostStmt<CastExpr>,
32 check::PreStmt<ArraySubscriptExpr>,
33 check::PostStmt<ArraySubscriptExpr>,
34 check::PreStmt<CXXNewExpr>,
35 check::PostStmt<CXXNewExpr>,
36 check::PreStmt<OffsetOfExpr>,
37 check::PostStmt<OffsetOfExpr>,
45 bool isCallbackEnabled(AnalyzerOptions &Opts, StringRef CallbackName) const {
46 return Opts.getBooleanOption("*", false, this) ||
47 Opts.getBooleanOption(CallbackName, false, this);
50 bool isCallbackEnabled(CheckerContext &C, StringRef CallbackName) const {
51 AnalyzerOptions &Opts = C.getAnalysisManager().getAnalyzerOptions();
52 return isCallbackEnabled(Opts, CallbackName);
55 bool isCallbackEnabled(ProgramStateRef State, StringRef CallbackName) const {
56 AnalyzerOptions &Opts = State->getStateManager().getOwningEngine()
57 ->getAnalysisManager().getAnalyzerOptions();
58 return isCallbackEnabled(Opts, CallbackName);
62 void checkPreStmt(const CastExpr *CE, CheckerContext &C) const {
63 if (isCallbackEnabled(C, "PreStmtCastExpr"))
64 llvm::errs() << "PreStmt<CastExpr> (Kind : " << CE->getCastKindName()
68 void checkPostStmt(const CastExpr *CE, CheckerContext &C) const {
69 if (isCallbackEnabled(C, "PostStmtCastExpr"))
70 llvm::errs() << "PostStmt<CastExpr> (Kind : " << CE->getCastKindName()
74 void checkPreStmt(const ArraySubscriptExpr *SubExpr,
75 CheckerContext &C) const {
76 if (isCallbackEnabled(C, "PreStmtArraySubscriptExpr"))
77 llvm::errs() << "PreStmt<ArraySubscriptExpr>\n";
80 void checkPostStmt(const ArraySubscriptExpr *SubExpr,
81 CheckerContext &C) const {
82 if (isCallbackEnabled(C, "PostStmtArraySubscriptExpr"))
83 llvm::errs() << "PostStmt<ArraySubscriptExpr>\n";
86 void checkPreStmt(const CXXNewExpr *NE, CheckerContext &C) const {
87 if (isCallbackEnabled(C, "PreStmtCXXNewExpr"))
88 llvm::errs() << "PreStmt<CXXNewExpr>\n";
91 void checkPostStmt(const CXXNewExpr *NE, CheckerContext &C) const {
92 if (isCallbackEnabled(C, "PostStmtCXXNewExpr"))
93 llvm::errs() << "PostStmt<CXXNewExpr>\n";
96 void checkPreStmt(const OffsetOfExpr *OOE, CheckerContext &C) const {
97 if (isCallbackEnabled(C, "PreStmtOffsetOfExpr"))
98 llvm::errs() << "PreStmt<OffsetOfExpr>\n";
101 void checkPostStmt(const OffsetOfExpr *OOE, CheckerContext &C) const {
102 if (isCallbackEnabled(C, "PostStmtOffsetOfExpr"))
103 llvm::errs() << "PostStmt<OffsetOfExpr>\n";
106 void checkPreCall(const CallEvent &Call, CheckerContext &C) const {
107 if (isCallbackEnabled(C, "PreCall")) {
108 llvm::errs() << "PreCall";
109 if (const NamedDecl *ND = dyn_cast_or_null<NamedDecl>(Call.getDecl()))
110 llvm::errs() << " (" << ND->getQualifiedNameAsString() << ')';
111 llvm::errs() << '\n';
115 void checkPostCall(const CallEvent &Call, CheckerContext &C) const {
116 if (isCallbackEnabled(C, "PostCall")) {
117 llvm::errs() << "PostCall";
118 if (const NamedDecl *ND = dyn_cast_or_null<NamedDecl>(Call.getDecl()))
119 llvm::errs() << " (" << ND->getQualifiedNameAsString() << ')';
120 llvm::errs() << '\n';
124 void checkNewAllocator(const CXXNewExpr *CNE, SVal Target,
125 CheckerContext &C) const {
126 if (isCallbackEnabled(C, "NewAllocator"))
127 llvm::errs() << "NewAllocator\n";
130 void checkBind(SVal Loc, SVal Val, const Stmt *S, CheckerContext &C) const {
131 if (isCallbackEnabled(C, "Bind"))
132 llvm::errs() << "Bind\n";
135 void checkLiveSymbols(ProgramStateRef State, SymbolReaper &SymReaper) const {
136 if (isCallbackEnabled(State, "LiveSymbols"))
137 llvm::errs() << "LiveSymbols\n";
141 checkRegionChanges(ProgramStateRef State,
142 const InvalidatedSymbols *Invalidated,
143 ArrayRef<const MemRegion *> ExplicitRegions,
144 ArrayRef<const MemRegion *> Regions,
145 const LocationContext *LCtx, const CallEvent *Call) const {
146 if (isCallbackEnabled(State, "RegionChanges"))
147 llvm::errs() << "RegionChanges\n";
151 } // end anonymous namespace
153 //===----------------------------------------------------------------------===//
155 //===----------------------------------------------------------------------===//
157 void ento::registerAnalysisOrderChecker(CheckerManager &mgr) {
158 mgr.registerChecker<AnalysisOrderChecker>();