AnalysisContext.h revision 26c9cb55cb96643c0759c08d037c16c309864087
1326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek//=== AnalysisContext.h - Analysis context for Path Sens analysis --*- C++ -*-// 2326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek// 3326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek// The LLVM Compiler Infrastructure 4326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek// 5326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek// This file is distributed under the University of Illinois Open Source 6326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek// License. See LICENSE.TXT for details. 7326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek// 8326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek//===----------------------------------------------------------------------===// 9326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek// 10326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek// This file defines AnalysisContext, a class that manages the analysis context 11326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek// data for path sensitive analysis. 12326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek// 13326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek//===----------------------------------------------------------------------===// 14326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 15326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek#ifndef LLVM_CLANG_ANALYSIS_ANALYSISCONTEXT_H 16326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek#define LLVM_CLANG_ANALYSIS_ANALYSISCONTEXT_H 17326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 18326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek#include "clang/AST/Decl.h" 19892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek#include "clang/AST/Expr.h" 20326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek#include "llvm/ADT/OwningPtr.h" 21326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek#include "llvm/ADT/FoldingSet.h" 22326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek#include "llvm/ADT/PointerUnion.h" 23326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek#include "llvm/ADT/DenseMap.h" 24326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek#include "llvm/Support/Allocator.h" 25326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 26326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremeneknamespace clang { 27326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 28326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass Decl; 29326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass Stmt; 30326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass CFG; 31326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass CFGBlock; 32326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass LiveVariables; 33326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass ParentMap; 34db34ab70961ca4b24b600eb47053d7af304659f5Tom Careclass PseudoConstantAnalysis; 35326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass ImplicitParamDecl; 36326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass LocationContextManager; 37326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass StackFrameContext; 38d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 39c6238d2786cfd961b94580b3d3675a1b3ff0721cZhongxing Xunamespace idx { class TranslationUnit; } 40c6238d2786cfd961b94580b3d3675a1b3ff0721cZhongxing Xu 41326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek/// AnalysisContext contains the context data for the function or method under 42326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek/// analysis. 43326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass AnalysisContext { 44326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const Decl *D; 45326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 46c6238d2786cfd961b94580b3d3675a1b3ff0721cZhongxing Xu // TranslationUnit is NULL if we don't have multiple translation units. 472ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu idx::TranslationUnit *TU; 48c6238d2786cfd961b94580b3d3675a1b3ff0721cZhongxing Xu 49326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek // AnalysisContext owns the following data. 50ad5a894df1841698c824381b414630799adc26caTed Kremenek CFG *cfg, *completeCFG; 51ad5a894df1841698c824381b414630799adc26caTed Kremenek bool builtCFG, builtCompleteCFG; 52326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek LiveVariables *liveness; 53ec49bf464c91a52b3a463940da6589d03bf40248Tom Care LiveVariables *relaxedLiveness; 54326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ParentMap *PM; 55db34ab70961ca4b24b600eb47053d7af304659f5Tom Care PseudoConstantAnalysis *PCA; 56326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek llvm::DenseMap<const BlockDecl*,void*> *ReferencedBlockVars; 57326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek llvm::BumpPtrAllocator A; 589b823e8e1ccb8a2cb49923bad22a80ca96f41f92Ted Kremenek bool UseUnoptimizedCFG; 59326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek bool AddEHEdges; 609121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski bool AddImplicitDtors; 619121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski bool AddInitializers; 62326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekpublic: 632ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu AnalysisContext(const Decl *d, idx::TranslationUnit *tu, 649b823e8e1ccb8a2cb49923bad22a80ca96f41f92Ted Kremenek bool useUnoptimizedCFG = false, 659121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski bool addehedges = false, 669121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski bool addImplicitDtors = false, 679121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski bool addInitializers = false) 68ad5a894df1841698c824381b414630799adc26caTed Kremenek : D(d), TU(tu), cfg(0), completeCFG(0), 69ad5a894df1841698c824381b414630799adc26caTed Kremenek builtCFG(false), builtCompleteCFG(false), 70ec49bf464c91a52b3a463940da6589d03bf40248Tom Care liveness(0), relaxedLiveness(0), PM(0), PCA(0), 719b823e8e1ccb8a2cb49923bad22a80ca96f41f92Ted Kremenek ReferencedBlockVars(0), UseUnoptimizedCFG(useUnoptimizedCFG), 729121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski AddEHEdges(addehedges), AddImplicitDtors(addImplicitDtors), 739121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski AddInitializers(addInitializers) {} 74326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 75326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ~AnalysisContext(); 76326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 77326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ASTContext &getASTContext() { return D->getASTContext(); } 78c6238d2786cfd961b94580b3d3675a1b3ff0721cZhongxing Xu const Decl *getDecl() const { return D; } 79c6238d2786cfd961b94580b3d3675a1b3ff0721cZhongxing Xu 802ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu idx::TranslationUnit *getTranslationUnit() const { return TU; } 81c6238d2786cfd961b94580b3d3675a1b3ff0721cZhongxing Xu 82326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek /// getAddEHEdges - Return true iff we are adding exceptional edges from 83326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek /// callExprs. If this is false, then try/catch statements and blocks 84326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek /// reachable from them can appear to be dead in the CFG, analysis passes must 85326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek /// cope with that. 86326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek bool getAddEHEdges() const { return AddEHEdges; } 879b823e8e1ccb8a2cb49923bad22a80ca96f41f92Ted Kremenek 889b823e8e1ccb8a2cb49923bad22a80ca96f41f92Ted Kremenek bool getUseUnoptimizedCFG() const { return UseUnoptimizedCFG; } 899121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski bool getAddImplicitDtors() const { return AddImplicitDtors; } 909121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski bool getAddInitializers() const { return AddInitializers; } 919b823e8e1ccb8a2cb49923bad22a80ca96f41f92Ted Kremenek 92326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek Stmt *getBody(); 93326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek CFG *getCFG(); 94ad5a894df1841698c824381b414630799adc26caTed Kremenek 95ad5a894df1841698c824381b414630799adc26caTed Kremenek /// Return a version of the CFG without any edges pruned. 96ad5a894df1841698c824381b414630799adc26caTed Kremenek CFG *getUnoptimizedCFG(); 97ad5a894df1841698c824381b414630799adc26caTed Kremenek 98326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ParentMap &getParentMap(); 99db34ab70961ca4b24b600eb47053d7af304659f5Tom Care PseudoConstantAnalysis *getPseudoConstantAnalysis(); 100326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek LiveVariables *getLiveVariables(); 101ec49bf464c91a52b3a463940da6589d03bf40248Tom Care LiveVariables *getRelaxedLiveVariables(); 102326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 103326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek typedef const VarDecl * const * referenced_decls_iterator; 104326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 105326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek std::pair<referenced_decls_iterator, referenced_decls_iterator> 106326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek getReferencedBlockVars(const BlockDecl *BD); 107d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 108326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek /// Return the ImplicitParamDecl* associated with 'self' if this 109326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek /// AnalysisContext wraps an ObjCMethodDecl. Returns NULL otherwise. 110326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const ImplicitParamDecl *getSelfDecl() const; 111326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek}; 112326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 113326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass AnalysisContextManager { 114326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek typedef llvm::DenseMap<const Decl*, AnalysisContext*> ContextMap; 115326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ContextMap Contexts; 1169b823e8e1ccb8a2cb49923bad22a80ca96f41f92Ted Kremenek bool UseUnoptimizedCFG; 1179121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski bool AddImplicitDtors; 1189121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski bool AddInitializers; 119326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekpublic: 1209121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski AnalysisContextManager(bool useUnoptimizedCFG = false, 1219121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski bool addImplicitDtors = false, bool addInitializers = false) 1229121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski : UseUnoptimizedCFG(useUnoptimizedCFG), AddImplicitDtors(addImplicitDtors), 1239121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski AddInitializers(addInitializers) {} 1249b823e8e1ccb8a2cb49923bad22a80ca96f41f92Ted Kremenek 125326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ~AnalysisContextManager(); 126326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 1272ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu AnalysisContext *getContext(const Decl *D, idx::TranslationUnit *TU = 0); 128d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 1299b823e8e1ccb8a2cb49923bad22a80ca96f41f92Ted Kremenek bool getUseUnoptimizedCFG() const { return UseUnoptimizedCFG; } 1309121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski bool getAddImplicitDtors() const { return AddImplicitDtors; } 1319121ba232903ebe61e7bbe14ca294cf0f07dfa96Marcin Swiderski bool getAddInitializers() const { return AddInitializers; } 1329b823e8e1ccb8a2cb49923bad22a80ca96f41f92Ted Kremenek 133326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek // Discard all previously created AnalysisContexts. 134326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek void clear(); 135326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek}; 136326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 137326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass LocationContext : public llvm::FoldingSetNode { 138326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekpublic: 139326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek enum ContextKind { StackFrame, Scope, Block }; 140326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 141326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekprivate: 142326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ContextKind Kind; 143a02d893f15d4663bdba3bd92ade10070bf0510e4Zhongxing Xu 144a02d893f15d4663bdba3bd92ade10070bf0510e4Zhongxing Xu // AnalysisContext can't be const since some methods may modify its member. 145326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek AnalysisContext *Ctx; 146a02d893f15d4663bdba3bd92ade10070bf0510e4Zhongxing Xu 147326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const LocationContext *Parent; 148326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 149326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekprotected: 150326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek LocationContext(ContextKind k, AnalysisContext *ctx, 151326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const LocationContext *parent) 152326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek : Kind(k), Ctx(ctx), Parent(parent) {} 153326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 154326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekpublic: 155326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek virtual ~LocationContext(); 156d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 157326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ContextKind getKind() const { return Kind; } 158326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 159326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek AnalysisContext *getAnalysisContext() const { return Ctx; } 160326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 1612ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu idx::TranslationUnit *getTranslationUnit() const { 162c6238d2786cfd961b94580b3d3675a1b3ff0721cZhongxing Xu return Ctx->getTranslationUnit(); 163c6238d2786cfd961b94580b3d3675a1b3ff0721cZhongxing Xu } 164c6238d2786cfd961b94580b3d3675a1b3ff0721cZhongxing Xu 165326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const LocationContext *getParent() const { return Parent; } 166326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 1678ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu bool isParentOf(const LocationContext *LC) const; 1688ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu 169326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const Decl *getDecl() const { return getAnalysisContext()->getDecl(); } 170326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 171326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek CFG *getCFG() const { return getAnalysisContext()->getCFG(); } 172326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 173326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek LiveVariables *getLiveVariables() const { 174326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek return getAnalysisContext()->getLiveVariables(); 175326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek } 176326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 177d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek ParentMap &getParentMap() const { 178326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek return getAnalysisContext()->getParentMap(); 179326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek } 180326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 181326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const ImplicitParamDecl *getSelfDecl() const { 182326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek return Ctx->getSelfDecl(); 183326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek } 184d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 185326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const StackFrameContext *getCurrentStackFrame() const; 186326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const StackFrameContext * 187326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek getStackFrameForDeclContext(const DeclContext *DC) const; 188326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 189326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek virtual void Profile(llvm::FoldingSetNodeID &ID) = 0; 190326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 191326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek static bool classof(const LocationContext*) { return true; } 192326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 193326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekpublic: 194326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek static void ProfileCommon(llvm::FoldingSetNodeID &ID, 195326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ContextKind ck, 196326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek AnalysisContext *ctx, 197326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const LocationContext *parent, 198326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const void* data); 199326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek}; 200326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 201326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass StackFrameContext : public LocationContext { 20226c9cb55cb96643c0759c08d037c16c309864087Zhongxing Xu // The callsite where this stack frame is established. 203892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek const Stmt *CallSite; 204326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 205326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek // The parent block of the callsite. 206326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const CFGBlock *Block; 207326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 208326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek // The index of the callsite in the CFGBlock. 209326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek unsigned Index; 210326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 211326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek friend class LocationContextManager; 212326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek StackFrameContext(AnalysisContext *ctx, const LocationContext *parent, 213892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek const Stmt *s, const CFGBlock *blk, 214d706434b0231c76fd9acf30060646a7aa8f69aefZhongxing Xu unsigned idx) 215892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek : LocationContext(StackFrame, ctx, parent), CallSite(s), 216d706434b0231c76fd9acf30060646a7aa8f69aefZhongxing Xu Block(blk), Index(idx) {} 217326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 218326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekpublic: 219326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ~StackFrameContext() {} 220326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 221892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek const Stmt *getCallSite() const { return CallSite; } 222d706434b0231c76fd9acf30060646a7aa8f69aefZhongxing Xu 223326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const CFGBlock *getCallSiteBlock() const { return Block; } 224326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 225326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek unsigned getIndex() const { return Index; } 226326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 227326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek void Profile(llvm::FoldingSetNodeID &ID); 228d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 229326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek static void Profile(llvm::FoldingSetNodeID &ID, AnalysisContext *ctx, 230d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek const LocationContext *parent, const Stmt *s, 231892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek const CFGBlock *blk, unsigned idx) { 232326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ProfileCommon(ID, StackFrame, ctx, parent, s); 233326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ID.AddPointer(blk); 234326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ID.AddInteger(idx); 235326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek } 236326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 237326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek static bool classof(const LocationContext* Ctx) { 238326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek return Ctx->getKind() == StackFrame; 239326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek } 240326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek}; 241326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 242326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass ScopeContext : public LocationContext { 243326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const Stmt *Enter; 244d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 245326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek friend class LocationContextManager; 246326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ScopeContext(AnalysisContext *ctx, const LocationContext *parent, 247326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const Stmt *s) 248326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek : LocationContext(Scope, ctx, parent), Enter(s) {} 249326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 250326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekpublic: 251326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ~ScopeContext() {} 252326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 253326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek void Profile(llvm::FoldingSetNodeID &ID); 254326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 255326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek static void Profile(llvm::FoldingSetNodeID &ID, AnalysisContext *ctx, 256326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const LocationContext *parent, const Stmt *s) { 257326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ProfileCommon(ID, Scope, ctx, parent, s); 258326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek } 259326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 260326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek static bool classof(const LocationContext* Ctx) { 261326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek return Ctx->getKind() == Scope; 262326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek } 263326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek}; 264326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 265326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass BlockInvocationContext : public LocationContext { 266326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek // FIXME: Add back context-sensivity (we don't want libAnalysis to know 267326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek // about MemRegion). 268326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const BlockDecl *BD; 269326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 270326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek friend class LocationContextManager; 271326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 272326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek BlockInvocationContext(AnalysisContext *ctx, const LocationContext *parent, 273326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const BlockDecl *bd) 274326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek : LocationContext(Block, ctx, parent), BD(bd) {} 275326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 276326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekpublic: 277326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ~BlockInvocationContext() {} 278326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 279326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const BlockDecl *getBlockDecl() const { return BD; } 280326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 281326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek void Profile(llvm::FoldingSetNodeID &ID); 282326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 283326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek static void Profile(llvm::FoldingSetNodeID &ID, AnalysisContext *ctx, 284326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const LocationContext *parent, const BlockDecl *bd) { 285326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ProfileCommon(ID, Block, ctx, parent, bd); 286326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek } 287d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 288326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek static bool classof(const LocationContext* Ctx) { 289326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek return Ctx->getKind() == Block; 290326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek } 291326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek}; 292326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 293326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekclass LocationContextManager { 294326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek llvm::FoldingSet<LocationContext> Contexts; 295326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekpublic: 296326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek ~LocationContextManager(); 297d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 298326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const StackFrameContext *getStackFrame(AnalysisContext *ctx, 299326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const LocationContext *parent, 300892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek const Stmt *s, 301d706434b0231c76fd9acf30060646a7aa8f69aefZhongxing Xu const CFGBlock *blk, unsigned idx); 302326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 303326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const ScopeContext *getScope(AnalysisContext *ctx, 304326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const LocationContext *parent, 305326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const Stmt *s); 306d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 307326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek /// Discard all previously created LocationContext objects. 308326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek void clear(); 309326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenekprivate: 310326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek template <typename LOC, typename DATA> 311326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const LOC *getLocationContext(AnalysisContext *ctx, 312326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const LocationContext *parent, 313326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek const DATA *d); 314326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek}; 315326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek 316326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek} // end clang namespace 317326be568e2cb04285c84e6e26a3e6b3822607361Ted Kremenek#endif 318