ExprEngine.h revision eea72a925f294225391ecec876a342771c09b635
1d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis//===-- ExprEngine.h - Path-Sensitive Expression-Level Dataflow ---*- C++ -*-=// 277349cb20bfd7069d081f84c91975bfa8ef60a32Ted Kremenek// 377349cb20bfd7069d081f84c91975bfa8ef60a32Ted Kremenek// The LLVM Compiler Infrastructure 477349cb20bfd7069d081f84c91975bfa8ef60a32Ted Kremenek// 577349cb20bfd7069d081f84c91975bfa8ef60a32Ted Kremenek// This file is distributed under the University of Illinois Open Source 677349cb20bfd7069d081f84c91975bfa8ef60a32Ted Kremenek// License. See LICENSE.TXT for details. 777349cb20bfd7069d081f84c91975bfa8ef60a32Ted Kremenek// 877349cb20bfd7069d081f84c91975bfa8ef60a32Ted Kremenek//===----------------------------------------------------------------------===// 977349cb20bfd7069d081f84c91975bfa8ef60a32Ted Kremenek// 10b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek// This file defines a meta-engine for path-sensitive dataflow analysis that 11d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis// is built on CoreEngine, but provides the boilerplate to execute transfer 12b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek// functions and build the ExplodedGraph at the expression level. 1377349cb20bfd7069d081f84c91975bfa8ef60a32Ted Kremenek// 1477349cb20bfd7069d081f84c91975bfa8ef60a32Ted Kremenek//===----------------------------------------------------------------------===// 1577349cb20bfd7069d081f84c91975bfa8ef60a32Ted Kremenek 16d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis#ifndef LLVM_CLANG_GR_EXPRENGINE 17d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis#define LLVM_CLANG_GR_EXPRENGINE 18d065d6080f0620bb80b933f3f5d52d37bb2ea770Ted Kremenek 199b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/AnalysisManager.h" 209b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/SubEngine.h" 219b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/CoreEngine.h" 229b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/GRState.h" 239b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/TransferFuncs.h" 24e5cfd52a3a5d4bb46f77323fa8fa0b973fcde7bcTed Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/ObjCMessage.h" 259b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/BugReporter/BugReporter.h" 26c0c3f5dbc9e78aa53a86c7d5e3eeda23ddad93d6Ted Kremenek#include "clang/AST/Type.h" 27f494b579b22f9950f5af021f0bf9879a91bb8b41Steve Naroff#include "clang/AST/ExprObjC.h" 28bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu#include "clang/AST/ExprCXX.h" 294beaa9f51b2da57c64740cef2bd1c2fdb0c325d5Ted Kremenek#include "clang/AST/StmtObjC.h" 3077349cb20bfd7069d081f84c91975bfa8ef60a32Ted Kremenek 311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpnamespace clang { 325a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 335a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidisclass ObjCForCollectionStmt; 345a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 359ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremeneknamespace ento { 365a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 375e2d2c2ee3cf410643e0f9a5701708e51409d973Benjamin Kramerclass AnalysisManager; 38f494b579b22f9950f5af021f0bf9879a91bb8b41Steve Naroff 39d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidisclass ExprEngine : public SubEngine { 4025e695b2d574d919cc1bbddf3a2efe073d449b1cZhongxing Xu AnalysisManager &AMgr; 4125e695b2d574d919cc1bbddf3a2efe073d449b1cZhongxing Xu 42d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis CoreEngine Engine; 431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// G - the simulation graph. 45031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ExplodedGraph& G; 461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 47d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// Builder - The current StmtNodeBuilder which is used when building the 48b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// nodes for a given statement. 49d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis StmtNodeBuilder* Builder; 501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 51b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// StateMgr - Object that manages the data for all created states. 524adc81e540b874bafa15715fd2c5cb662463debdTed Kremenek GRStateManager StateMgr; 53cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek 54b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// SymMgr - Object that manages the symbol information. 55b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek SymbolManager& SymMgr; 561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 57846eabd187be4bfe992e8bca131166b734d86e0dTed Kremenek /// svalBuilder - SValBuilder object that creates SVals from expressions. 58846eabd187be4bfe992e8bca131166b734d86e0dTed Kremenek SValBuilder &svalBuilder; 591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 60846d4e923bf11bcdc2816758aafa331795f29230Ted Kremenek /// EntryNode - The immediate predecessor node. 61031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ExplodedNode* EntryNode; 62846d4e923bf11bcdc2816758aafa331795f29230Ted Kremenek 63846d4e923bf11bcdc2816758aafa331795f29230Ted Kremenek /// CleanedState - The state for EntryNode "cleaned" of all dead 640d093d3005dd583675a45a85bd688063572cc8afTed Kremenek /// variables and symbols (as determined by a liveness analysis). 651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const GRState* CleanedState; 661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 670a3ed3143b00f237decb1288c1ff574ae09eba4eTed Kremenek /// currentStmt - The current block-level statement. 680a3ed3143b00f237decb1288c1ff574ae09eba4eTed Kremenek const Stmt* currentStmt; 691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 70e448ab4f9dd162802f5d7cfea60f7830cc61c654Ted Kremenek // Obj-C Class Identifiers. 71e448ab4f9dd162802f5d7cfea60f7830cc61c654Ted Kremenek IdentifierInfo* NSExceptionII; 721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 73e448ab4f9dd162802f5d7cfea60f7830cc61c654Ted Kremenek // Obj-C Selectors. 74e448ab4f9dd162802f5d7cfea60f7830cc61c654Ted Kremenek Selector* NSExceptionInstanceRaiseSelectors; 75e448ab4f9dd162802f5d7cfea60f7830cc61c654Ted Kremenek Selector RaiseSel; 761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 779e9595b12e9b55586c4d50d370f429c7a3c92a90Ted Kremenek /// The BugReporter associated with this engine. It is important that 789e9595b12e9b55586c4d50d370f429c7a3c92a90Ted Kremenek /// this object be placed at the very end of member variables so that its 79d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// destructor is called before the rest of the ExprEngine is destroyed. 80cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek GRBugReporter BR; 8132a58084a4c53e6938dd81bfce224db25a5976d1Ted Kremenek 82d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis llvm::OwningPtr<TransferFuncs> TF; 831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 84b22d589e2ccd09cada0bcea136f0966883a8bb11Ted Kremenekpublic: 85d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis ExprEngine(AnalysisManager &mgr, TransferFuncs *tf); 86cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek 87d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis ~ExprEngine(); 881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8925e695b2d574d919cc1bbddf3a2efe073d449b1cZhongxing Xu void ExecuteWorkList(const LocationContext *L, unsigned Steps = 150000) { 90d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis Engine.ExecuteWorkList(L, Steps, 0); 912ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu } 922ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu 932ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu /// Execute the work list with an initial state. Nodes that reaches the exit 942ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu /// of the function are added into the Dst set, which represent the exit 952ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu /// state of the function call. 962ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu void ExecuteWorkListWithInitialState(const LocationContext *L, unsigned Steps, 972ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu const GRState *InitState, 982ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu ExplodedNodeSet &Dst) { 99d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis Engine.ExecuteWorkListWithInitialState(L, Steps, InitState, Dst); 100b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek } 1011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 102b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// getContext - Return the ASTContext associated with this analysis. 103c77a55126fcad66fb086f8e100a494caa2496a2dZhongxing Xu ASTContext& getContext() const { return AMgr.getASTContext(); } 1045032ffe4259e7d436f2eb19e5a29fdae559e7c12Zhongxing Xu 1052ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu virtual AnalysisManager &getAnalysisManager() { return AMgr; } 1061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 107769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis CheckerManager &getCheckerManager() const { 108769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis return *AMgr.getCheckerManager(); 109769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } 110769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 111846eabd187be4bfe992e8bca131166b734d86e0dTed Kremenek SValBuilder &getSValBuilder() { return svalBuilder; } 1121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 113d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis TransferFuncs& getTF() { return *TF; } 1141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 115cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek BugReporter& getBugReporter() { return BR; } 1161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 117d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis StmtNodeBuilder &getBuilder() { assert(Builder); return *Builder; } 118ec9227fea66c3439991fc84b0d33b0a8b4b8875eZhongxing Xu 119d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis // FIXME: Remove once TransferFuncs is no longer referenced. 120d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis void setTransferFunction(TransferFuncs* tf); 1211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 122e01c98767dfd7153c3c84637c36659e3bbe16ff7Ted Kremenek /// ViewGraph - Visualize the ExplodedGraph created by executing the 123e01c98767dfd7153c3c84637c36659e3bbe16ff7Ted Kremenek /// simulation. 124ffe0f43806d4823271c2406c1fccc2373115c36aTed Kremenek void ViewGraph(bool trim = false); 1251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 126031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu void ViewGraph(ExplodedNode** Beg, ExplodedNode** End); 1271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 128b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// getInitialState - Return the initial state used for the root vertex 129b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// in the ExplodedGraph. 13017fd8632dcda97022a51effc24060eacdad9dbe0Zhongxing Xu const GRState* getInitialState(const LocationContext *InitLoc); 1311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 132031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ExplodedGraph& getGraph() { return G; } 133031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu const ExplodedGraph& getGraph() const { return G; } 13450a6d0ce344c02782e0207574005c3b2aaa5077cTed Kremenek 135e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek /// processCFGElement - Called by CoreEngine. Used to generate new successor 1369c6cd67ea416bace666d614c84d5531124287653Zhongxing Xu /// nodes by processing the 'effects' of a CFG element. 137e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processCFGElement(const CFGElement E, StmtNodeBuilder& builder); 1389c6cd67ea416bace666d614c84d5531124287653Zhongxing Xu 139d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis void ProcessStmt(const CFGStmt S, StmtNodeBuilder &builder); 1409c6cd67ea416bace666d614c84d5531124287653Zhongxing Xu 141d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis void ProcessInitializer(const CFGInitializer I, StmtNodeBuilder &builder); 1429c6cd67ea416bace666d614c84d5531124287653Zhongxing Xu 143d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis void ProcessImplicitDtor(const CFGImplicitDtor D, StmtNodeBuilder &builder); 1441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1454ffcb9974c6b7142c4a1483abfcb1f88b6371c45Zhongxing Xu void ProcessAutomaticObjDtor(const CFGAutomaticObjDtor D, 146d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis StmtNodeBuilder &builder); 147d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis void ProcessBaseDtor(const CFGBaseDtor D, StmtNodeBuilder &builder); 148d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis void ProcessMemberDtor(const CFGMemberDtor D, StmtNodeBuilder &builder); 1494ffcb9974c6b7142c4a1483abfcb1f88b6371c45Zhongxing Xu void ProcessTemporaryDtor(const CFGTemporaryDtor D, 150d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis StmtNodeBuilder &builder); 1514ffcb9974c6b7142c4a1483abfcb1f88b6371c45Zhongxing Xu 15227c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek /// Called by CoreEngine when processing the entrance of a CFGBlock. 15327c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek virtual void processCFGBlockEntrance(ExplodedNodeSet &dstNodes, 15427c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek GenericNodeBuilder<BlockEntrance> &nodeBuilder); 15527c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek 156d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// ProcessBranch - Called by CoreEngine. Used to generate successor 157b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// nodes by processing the 'effects' of a branch condition. 158e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processBranch(const Stmt* Condition, const Stmt* Term, 159d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis BranchNodeBuilder& builder); 1601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 161e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek /// processIndirectGoto - Called by CoreEngine. Used to generate successor 162b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// nodes by processing the 'effects' of a computed goto jump. 163e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processIndirectGoto(IndirectGotoNodeBuilder& builder); 1641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 165d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// ProcessSwitch - Called by CoreEngine. Used to generate successor 166b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// nodes by processing the 'effects' of a switch statement. 167e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processSwitch(SwitchNodeBuilder& builder); 1681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 169d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// ProcessEndPath - Called by CoreEngine. Used to generate end-of-path 17011062b118476368fa5b294954713e5df97d8599fTed Kremenek /// nodes when the control reaches the end of a function. 171e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processEndOfFunction(EndOfFunctionNodeBuilder& builder); 172102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 173ccc263b44c62ce3a02f797a3ddb3d6017cf0e5e4Ted Kremenek /// Generate the entry node of the callee. 174e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processCallEnter(CallEnterNodeBuilder &builder); 175102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 176ccc263b44c62ce3a02f797a3ddb3d6017cf0e5e4Ted Kremenek /// Generate the first post callsite node. 177e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processCallExit(CallExitNodeBuilder &builder); 178102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 179d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// Called by CoreEngine when the analysis worklist has terminated. 180e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processEndWorklist(bool hasWorkRemaining); 181ccc263b44c62ce3a02f797a3ddb3d6017cf0e5e4Ted Kremenek 1829c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek /// evalAssume - Callback function invoked by the ConstraintManager when 18332a58084a4c53e6938dd81bfce224db25a5976d1Ted Kremenek /// making assumptions about state values. 184e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek const GRState *processAssume(const GRState *state, SVal cond,bool assumption); 1851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 186e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek /// wantsRegionChangeUpdate - Called by GRStateManager to determine if a 187e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek /// region change should trigger a processRegionChanges update. 188e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek bool wantsRegionChangeUpdate(const GRState* state); 189c2b7dfaad674587cfd220ff447b3710d252130c3Jordy Rose 190e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek /// processRegionChanges - Called by GRStateManager whenever a change is made 191c2b7dfaad674587cfd220ff447b3710d252130c3Jordy Rose /// to the store. Used to update checkers that track region values. 19235bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek const GRState * 19335bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek processRegionChanges(const GRState *state, 19435bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek const StoreManager::InvalidatedSymbols *invalidated, 19535bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek const MemRegion * const *Begin, 19635bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek const MemRegion * const *End); 197c2b7dfaad674587cfd220ff447b3710d252130c3Jordy Rose 1982ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu virtual GRStateManager& getStateManager() { return StateMgr; } 19990e72e4106a0c3efa7575e9f9cba0c775bb54552Zhongxing Xu 20090e72e4106a0c3efa7575e9f9cba0c775bb54552Zhongxing Xu StoreManager& getStoreManager() { return StateMgr.getStoreManager(); } 2011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 202a516ce16b472e61924f5dd10d181c3e8330979afTed Kremenek ConstraintManager& getConstraintManager() { 203a516ce16b472e61924f5dd10d181c3e8330979afTed Kremenek return StateMgr.getConstraintManager(); 204a516ce16b472e61924f5dd10d181c3e8330979afTed Kremenek } 2051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 206c8413fd03f73084a5c93028f8b4db619fc388087Ted Kremenek // FIXME: Remove when we migrate over to just using SValBuilder. 2076297a8ec313c722db50f686fd190842b7ea91118Ted Kremenek BasicValueFactory& getBasicVals() { 2086297a8ec313c722db50f686fd190842b7ea91118Ted Kremenek return StateMgr.getBasicVals(); 2096297a8ec313c722db50f686fd190842b7ea91118Ted Kremenek } 2106297a8ec313c722db50f686fd190842b7ea91118Ted Kremenek const BasicValueFactory& getBasicVals() const { 2116297a8ec313c722db50f686fd190842b7ea91118Ted Kremenek return StateMgr.getBasicVals(); 2126297a8ec313c722db50f686fd190842b7ea91118Ted Kremenek } 2131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 214044b6f0417cb98741f277602fabf5f07ec9a02c0Ted Kremenek // FIXME: Remove when we migrate over to just using ValueManager. 21500a3a5f024ac54088ab887712b292171188064f0Ted Kremenek SymbolManager& getSymbolManager() { return SymMgr; } 21600a3a5f024ac54088ab887712b292171188064f0Ted Kremenek const SymbolManager& getSymbolManager() const { return SymMgr; } 2171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 218bc42c533e7d3d946704a49e242939dd232f33072Tom Care // Functions for external checking of whether we have unfinished work 219422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek bool wasBlocksExhausted() const { return Engine.wasBlocksExhausted(); } 220d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis bool hasEmptyWorkList() const { return !Engine.getWorkList()->hasWork(); } 221422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek bool hasWorkRemaining() const { return Engine.hasWorkRemaining(); } 222bc42c533e7d3d946704a49e242939dd232f33072Tom Care 223d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis const CoreEngine &getCoreEngine() const { return Engine; } 224bc42c533e7d3d946704a49e242939dd232f33072Tom Care 22505a2378c708688c8ef498a5cea40ed7f5db15fa5Ted Kremenekprotected: 226031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu const GRState* GetState(ExplodedNode* N) { 227846d4e923bf11bcdc2816758aafa331795f29230Ted Kremenek return N == EntryNode ? CleanedState : N->getState(); 228512c913a6f93d225faacdb8e20308f5c4065c3ebTed Kremenek } 2291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2301670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenekpublic: 2313992a50eea030a2913f1d267554f55ecd00d694cZhongxing Xu ExplodedNode* MakeNode(ExplodedNodeSet& Dst, const Stmt* S, 2323992a50eea030a2913f1d267554f55ecd00d694cZhongxing Xu ExplodedNode* Pred, const GRState* St, 233bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu ProgramPoint::Kind K = ProgramPoint::PostStmtKind, 234bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu const void *tag = 0); 2357b71c1977cccafa23f9ecb3b0b22199e61ae634cZhongxing Xu 236b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// Visit - Transfer function logic for all statements. Dispatches to 237b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// other functions that handle specific kinds of statements. 23803509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void Visit(const Stmt* S, ExplodedNode* Pred, ExplodedNodeSet& Dst); 2391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 240c5b1bf10133a8ecbfe9e6b3ec92bae84e3d927e8Ted Kremenek /// VisitArraySubscriptExpr - Transfer function for array accesses. 241892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek void VisitLvalArraySubscriptExpr(const ArraySubscriptExpr* Ex, 242892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNode* Pred, 243892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet& Dst); 2441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 245ef44bfb9d0f15ba0391f8346c9f01355fb450a09Ted Kremenek /// VisitAsmStmt - Transfer function logic for inline asm. 24603509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitAsmStmt(const AsmStmt* A, ExplodedNode* Pred, ExplodedNodeSet& Dst); 2471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24803509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitAsmStmtHelperOutputs(const AsmStmt* A, 24903509aea098772644bf4662dc1c88634818ceeccZhongxing Xu AsmStmt::const_outputs_iterator I, 25003509aea098772644bf4662dc1c88634818ceeccZhongxing Xu AsmStmt::const_outputs_iterator E, 251031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ExplodedNode* Pred, ExplodedNodeSet& Dst); 2521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25303509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitAsmStmtHelperInputs(const AsmStmt* A, 25403509aea098772644bf4662dc1c88634818ceeccZhongxing Xu AsmStmt::const_inputs_iterator I, 25503509aea098772644bf4662dc1c88634818ceeccZhongxing Xu AsmStmt::const_inputs_iterator E, 256031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ExplodedNode* Pred, ExplodedNodeSet& Dst); 257c95ad9ff6e574aecdd759542d5578bc65d586d93Ted Kremenek 258c95ad9ff6e574aecdd759542d5578bc65d586d93Ted Kremenek /// VisitBlockExpr - Transfer function logic for BlockExprs. 25903509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitBlockExpr(const BlockExpr *BE, ExplodedNode *Pred, 26003509aea098772644bf4662dc1c88634818ceeccZhongxing Xu ExplodedNodeSet &Dst); 2611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 262b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// VisitBinaryOperator - Transfer function logic for binary operators. 26303509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitBinaryOperator(const BinaryOperator* B, ExplodedNode* Pred, 264892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet& Dst); 265469ecbded3616416ef938ed94a67f86149faf226Ted Kremenek 2661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 267de43424560f1a744de6214dab6bbee28ad8437f5Ted Kremenek /// VisitCall - Transfer function for function calls. 268b277159055933e610bbc80262b600d3ad7e0595cTed Kremenek void VisitCallExpr(const CallExpr* CE, ExplodedNode* Pred, 269b277159055933e610bbc80262b600d3ad7e0595cTed Kremenek ExplodedNodeSet& Dst); 2701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 271b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// VisitCast - Transfer function logic for all casts (implicit and explicit). 27203509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitCast(const CastExpr *CastE, const Expr *Ex, ExplodedNode *Pred, 273892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet &Dst); 274e1c2a675e0c089e1f53cbd55d2197a8beaa852aeTed Kremenek 2754f09027385466f1f4c382c80ca77157e2aef97d9Ted Kremenek /// VisitCompoundLiteralExpr - Transfer function logic for compound literals. 27603509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitCompoundLiteralExpr(const CompoundLiteralExpr* CL, 277892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNode* Pred, ExplodedNodeSet& Dst); 2781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 279892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek /// Transfer function logic for DeclRefExprs and BlockDeclRefExprs. 28003509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitCommonDeclRefExpr(const Expr* DR, const NamedDecl *D, 281892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNode* Pred, ExplodedNodeSet& Dst); 28267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 283b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// VisitDeclStmt - Transfer function logic for DeclStmts. 28403509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitDeclStmt(const DeclStmt* DS, ExplodedNode* Pred, 28503509aea098772644bf4662dc1c88634818ceeccZhongxing Xu ExplodedNodeSet& Dst); 2861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 287b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// VisitGuardedExpr - Transfer function logic for ?, __builtin_choose 28803509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitGuardedExpr(const Expr* Ex, const Expr* L, const Expr* R, 28903509aea098772644bf4662dc1c88634818ceeccZhongxing Xu ExplodedNode* Pred, ExplodedNodeSet& Dst); 29061dfbecd8e6181b2ba42ffb5feede27a2bab3b8aTed Kremenek 29103509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitInitListExpr(const InitListExpr* E, ExplodedNode* Pred, 292c05f23994720b3eb0a3b3494e7bfcec9e1536c89Ted Kremenek ExplodedNodeSet& Dst); 293c4f8706b6539e06a5de153bd72850bb2e0a71456Zhongxing Xu 294b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// VisitLogicalExpr - Transfer function logic for '&&', '||' 29503509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitLogicalExpr(const BinaryOperator* B, ExplodedNode* Pred, 296c05f23994720b3eb0a3b3494e7bfcec9e1536c89Ted Kremenek ExplodedNodeSet& Dst); 2971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 298469ecbded3616416ef938ed94a67f86149faf226Ted Kremenek /// VisitMemberExpr - Transfer function for member expressions. 29903509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitMemberExpr(const MemberExpr* M, ExplodedNode* Pred, 300892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet& Dst); 3011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3024beaa9f51b2da57c64740cef2bd1c2fdb0c325d5Ted Kremenek /// Transfer function logic for ObjCAtSynchronizedStmts. 3034beaa9f51b2da57c64740cef2bd1c2fdb0c325d5Ted Kremenek void VisitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt *S, 3044beaa9f51b2da57c64740cef2bd1c2fdb0c325d5Ted Kremenek ExplodedNode *Pred, ExplodedNodeSet &Dst); 3054beaa9f51b2da57c64740cef2bd1c2fdb0c325d5Ted Kremenek 30614429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis void VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *E, 30714429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis ExplodedNode *Pred, ExplodedNodeSet &Dst); 30814429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis 309892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek /// Transfer function logic for computing the lvalue of an Objective-C ivar. 310892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek void VisitLvalObjCIvarRefExpr(const ObjCIvarRefExpr* DR, ExplodedNode* Pred, 311892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet& Dst); 312af3374187c47acea45706eab6744be6b1c66a856Ted Kremenek 313af3374187c47acea45706eab6744be6b1c66a856Ted Kremenek /// VisitObjCForCollectionStmt - Transfer function logic for 314af3374187c47acea45706eab6744be6b1c66a856Ted Kremenek /// ObjCForCollectionStmt. 31503509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitObjCForCollectionStmt(const ObjCForCollectionStmt* S, 31603509aea098772644bf4662dc1c88634818ceeccZhongxing Xu ExplodedNode* Pred, ExplodedNodeSet& Dst); 3171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31803509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitObjCForCollectionStmtAux(const ObjCForCollectionStmt* S, 319bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu ExplodedNode* Pred, 320031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ExplodedNodeSet& Dst, SVal ElementV); 3211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 322469ecbded3616416ef938ed94a67f86149faf226Ted Kremenek /// VisitObjCMessageExpr - Transfer function for ObjC message expressions. 32303509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitObjCMessageExpr(const ObjCMessageExpr* ME, ExplodedNode* Pred, 324892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet& Dst); 3255286e2ddfd8332520de4c076e49991d6fe557adbArgyrios Kyrtzidis void VisitObjCMessage(const ObjCMessage &msg, ExplodedNodeSet &Src, 3265286e2ddfd8332520de4c076e49991d6fe557adbArgyrios Kyrtzidis ExplodedNodeSet& Dst); 3271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32802737ed29d7fff2206f7c7ee958cdf0665e35542Ted Kremenek /// VisitReturnStmt - Transfer function logic for return statements. 32903509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitReturnStmt(const ReturnStmt* R, ExplodedNode* Pred, 33003509aea098772644bf4662dc1c88634818ceeccZhongxing Xu ExplodedNodeSet& Dst); 3318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 3328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// VisitOffsetOfExpr - Transfer function for offsetof. 33303509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitOffsetOfExpr(const OffsetOfExpr* Ex, ExplodedNode* Pred, 3348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor ExplodedNodeSet& Dst); 3351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 336f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne /// VisitUnaryExprOrTypeTraitExpr - Transfer function for sizeof. 337f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne void VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr* Ex, 338f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne ExplodedNode* Pred, ExplodedNodeSet& Dst); 3391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 340b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// VisitUnaryOperator - Transfer function logic for unary operators. 34103509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitUnaryOperator(const UnaryOperator* B, ExplodedNode* Pred, 342892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet& Dst); 343bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu 34403509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitCXXThisExpr(const CXXThisExpr *TE, ExplodedNode *Pred, 345bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu ExplodedNodeSet & Dst); 346d706434b0231c76fd9acf30060646a7aa8f69aefZhongxing Xu 347d706434b0231c76fd9acf30060646a7aa8f69aefZhongxing Xu void VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *expr, 348892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNode *Pred, ExplodedNodeSet &Dst) { 349892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek VisitCXXConstructExpr(expr, 0, Pred, Dst); 350d706434b0231c76fd9acf30060646a7aa8f69aefZhongxing Xu } 351d706434b0231c76fd9acf30060646a7aa8f69aefZhongxing Xu 3527ce351db56fbce162a3b650518ce05b5c61ebf36Zhongxing Xu void VisitCXXConstructExpr(const CXXConstructExpr *E, const MemRegion *Dest, 353892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNode *Pred, ExplodedNodeSet &Dst); 354950db87e5efe2ff0c7234116929f8637aaf7ae7aZhongxing Xu 355b13453bd8a91f331d0910ca95ad52aa41b52f648Zhongxing Xu void VisitCXXDestructor(const CXXDestructorDecl *DD, 356b13453bd8a91f331d0910ca95ad52aa41b52f648Zhongxing Xu const MemRegion *Dest, const Stmt *S, 357b13453bd8a91f331d0910ca95ad52aa41b52f648Zhongxing Xu ExplodedNode *Pred, ExplodedNodeSet &Dst); 358b13453bd8a91f331d0910ca95ad52aa41b52f648Zhongxing Xu 35903509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitCXXNewExpr(const CXXNewExpr *CNE, ExplodedNode *Pred, 360856c6bcaea56e05255e9f3997ddd56b5c18a14f0Zhongxing Xu ExplodedNodeSet &Dst); 361856c6bcaea56e05255e9f3997ddd56b5c18a14f0Zhongxing Xu 36203509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitCXXDeleteExpr(const CXXDeleteExpr *CDE, ExplodedNode *Pred, 3636b8513829895e56a7b97e787ea74520bc626512eZhongxing Xu ExplodedNodeSet &Dst); 3646b8513829895e56a7b97e787ea74520bc626512eZhongxing Xu 3657ce351db56fbce162a3b650518ce05b5c61ebf36Zhongxing Xu void VisitAggExpr(const Expr *E, const MemRegion *Dest, ExplodedNode *Pred, 3667b71c1977cccafa23f9ecb3b0b22199e61ae634cZhongxing Xu ExplodedNodeSet &Dst); 3677b71c1977cccafa23f9ecb3b0b22199e61ae634cZhongxing Xu 368bc37b8dd9914e02580f531fa6e5e72be34d9675eZhongxing Xu /// Create a C++ temporary object for an rvalue. 369eea72a925f294225391ecec876a342771c09b635Ted Kremenek void CreateCXXTemporaryObject(const MaterializeTemporaryExpr *ME, 370eea72a925f294225391ecec876a342771c09b635Ted Kremenek ExplodedNode *Pred, 371bc37b8dd9914e02580f531fa6e5e72be34d9675eZhongxing Xu ExplodedNodeSet &Dst); 372bc37b8dd9914e02580f531fa6e5e72be34d9675eZhongxing Xu 3738e18c1b840882d26039503629d7e4ad4822f3bdaZhongxing Xu /// Synthesize CXXThisRegion. 3749dc84c9455df2a77195147d0210c915dc1775a88Zhongxing Xu const CXXThisRegion *getCXXThisRegion(const CXXRecordDecl *RD, 3758e18c1b840882d26039503629d7e4ad4822f3bdaZhongxing Xu const StackFrameContext *SFC); 3768e18c1b840882d26039503629d7e4ad4822f3bdaZhongxing Xu 37732303020d0f1a21cbcab65ae0c69a4218dc8f0fbZhongxing Xu const CXXThisRegion *getCXXThisRegion(const CXXMethodDecl *decl, 37832303020d0f1a21cbcab65ae0c69a4218dc8f0fbZhongxing Xu const StackFrameContext *frameCtx); 37932303020d0f1a21cbcab65ae0c69a4218dc8f0fbZhongxing Xu 380b17b1b3cc2b0d4d3b263b9384571bbc7f3995771Zhongxing Xu /// Evaluate arguments with a work list algorithm. 3819c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalArguments(ConstExprIterator AI, ConstExprIterator AE, 382b17b1b3cc2b0d4d3b263b9384571bbc7f3995771Zhongxing Xu const FunctionProtoType *FnType, 38382c63bfa0c5130e0cf274c1974b6157ebefc04feMarcin Swiderski ExplodedNode *Pred, ExplodedNodeSet &Dst, 38482c63bfa0c5130e0cf274c1974b6157ebefc04feMarcin Swiderski bool FstArgAsLValue = false); 385b277159055933e610bbc80262b600d3ad7e0595cTed Kremenek 386b277159055933e610bbc80262b600d3ad7e0595cTed Kremenek /// Evaluate callee expression (for a function call). 387b277159055933e610bbc80262b600d3ad7e0595cTed Kremenek void evalCallee(const CallExpr *callExpr, const ExplodedNodeSet &src, 388b277159055933e610bbc80262b600d3ad7e0595cTed Kremenek ExplodedNodeSet &dest); 3896a02b609c2e23b28d24f9db4c8006137c6b55ae4Marcin Swiderski 3909c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek /// evalEagerlyAssume - Given the nodes in 'Src', eagerly assume symbolic 39148af2a9c1ed3259512f2d1431720add1fbe8fb5fTed Kremenek /// expressions of the form 'x != 0' and generate new nodes (stored in Dst) 39248af2a9c1ed3259512f2d1431720add1fbe8fb5fTed Kremenek /// with those assumptions. 3939c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalEagerlyAssume(ExplodedNodeSet& Dst, ExplodedNodeSet& Src, 39403509aea098772644bf4662dc1c88634818ceeccZhongxing Xu const Expr *Ex); 3951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3969c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek SVal evalMinus(SVal X) { 3979c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek return X.isValid() ? svalBuilder.evalMinus(cast<NonLoc>(X)) : X; 398b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek } 3991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4009c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek SVal evalComplement(SVal X) { 4019c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek return X.isValid() ? svalBuilder.evalComplement(cast<NonLoc>(X)) : X; 40290e420321f60860f4c4e7a68ca9f7567824b46ecTed Kremenek } 403248072a8b9cd956c4ac63172fc2af09790f7c6a9Zhongxing Xu 4041670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenekpublic: 4051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4069c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek SVal evalBinOp(const GRState *state, BinaryOperator::Opcode op, 407cd8f6ac9b613e1fe962ebf9c87d822ce765275e6Ted Kremenek NonLoc L, NonLoc R, QualType T) { 4089c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek return svalBuilder.evalBinOpNN(state, op, L, R, T); 4096297a8ec313c722db50f686fd190842b7ea91118Ted Kremenek } 41010c16657eec144def180ee53d1e0249c9ed2b3b5Ted Kremenek 4119c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek SVal evalBinOp(const GRState *state, BinaryOperator::Opcode op, 412cd8f6ac9b613e1fe962ebf9c87d822ce765275e6Ted Kremenek NonLoc L, SVal R, QualType T) { 4139c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek return R.isValid() ? svalBuilder.evalBinOpNN(state,op,L, cast<NonLoc>(R), T) : R; 414b640b3b5dfccaf259967cb2cb6755c9aa20d4423Ted Kremenek } 4151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4169c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek SVal evalBinOp(const GRState *ST, BinaryOperator::Opcode Op, 417ff4264dae31cf42807b64ecc114906b0b835690aTed Kremenek SVal LHS, SVal RHS, QualType T) { 4189c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek return svalBuilder.evalBinOp(ST, Op, LHS, RHS, T); 419ff4264dae31cf42807b64ecc114906b0b835690aTed Kremenek } 4205b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek 4211670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenekprotected: 422432424d67641d609e4990d791baa782fc161027eArgyrios Kyrtzidis void evalObjCMessage(ExplodedNodeSet& Dst, const ObjCMessage &msg, 423432424d67641d609e4990d791baa782fc161027eArgyrios Kyrtzidis ExplodedNode* Pred, const GRState *state) { 424d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis assert (Builder && "StmtNodeBuilder must be defined."); 425432424d67641d609e4990d791baa782fc161027eArgyrios Kyrtzidis getTF().evalObjCMessage(Dst, *this, *Builder, msg, Pred, state); 426de43424560f1a744de6214dab6bbee28ad8437f5Ted Kremenek } 4271670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenek 42803509aea098772644bf4662dc1c88634818ceeccZhongxing Xu const GRState* MarkBranch(const GRState* St, const Stmt* Terminator, 4291670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenek bool branchTaken); 4301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4319c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek /// evalBind - Handle the semantics of binding a value to a specific location. 4329c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek /// This method is used by evalStore, VisitDeclStmt, and others. 4339c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalBind(ExplodedNodeSet& Dst, const Stmt* StoreE, ExplodedNode* Pred, 434f6f56d4fc8ebce17e7b83eb2c35f57a055c22283Ted Kremenek const GRState* St, SVal location, SVal Val, 435f6f56d4fc8ebce17e7b83eb2c35f57a055c22283Ted Kremenek bool atDeclInit = false); 4361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4371670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenekpublic: 438b4b817d704287836b52b34369009e682f208aa2bTed Kremenek // FIXME: 'tag' should be removed, and a LocationContext should be used 439b4b817d704287836b52b34369009e682f208aa2bTed Kremenek // instead. 440834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan // FIXME: Comment on the meaning of the arguments, when 'St' may not 441834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan // be the same as Pred->state, and when 'location' may not be the 442834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan // same as state->getLValue(Ex). 443834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan /// Simulate a read of the result of Ex. 4449c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalLoad(ExplodedNodeSet& Dst, const Expr* Ex, ExplodedNode* Pred, 445652be346f74feba027bcbdeb6a3e3f4755a0e62cZhongxing Xu const GRState* St, SVal location, const void *tag = 0, 446652be346f74feba027bcbdeb6a3e3f4755a0e62cZhongxing Xu QualType LoadTy = QualType()); 4471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 448b4b817d704287836b52b34369009e682f208aa2bTed Kremenek // FIXME: 'tag' should be removed, and a LocationContext should be used 449b4b817d704287836b52b34369009e682f208aa2bTed Kremenek // instead. 4509c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalStore(ExplodedNodeSet& Dst, const Expr* AssignE, const Expr* StoreE, 451b4b817d704287836b52b34369009e682f208aa2bTed Kremenek ExplodedNode* Pred, const GRState* St, SVal TargetLV, SVal Val, 4521670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenek const void *tag = 0); 453834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wanprivate: 4549c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalLoadCommon(ExplodedNodeSet& Dst, const Expr* Ex, ExplodedNode* Pred, 455852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek const GRState* St, SVal location, const void *tag, 456852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek QualType LoadTy); 457852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek 458852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek // FIXME: 'tag' should be removed, and a LocationContext should be used 459852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek // instead. 4609c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalLocation(ExplodedNodeSet &Dst, const Stmt *S, ExplodedNode* Pred, 461852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek const GRState* St, SVal location, 462852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek const void *tag, bool isLoad); 4631c625f25055331bf76ab5479a8060d2b0f61e8b8Zhongxing Xu 4641c625f25055331bf76ab5479a8060d2b0f61e8b8Zhongxing Xu bool InlineCall(ExplodedNodeSet &Dst, const CallExpr *CE, ExplodedNode *Pred); 465e5cfd52a3a5d4bb46f77323fa8fa0b973fcde7bcTed Kremenek 466e5cfd52a3a5d4bb46f77323fa8fa0b973fcde7bcTed Kremenek 467e5cfd52a3a5d4bb46f77323fa8fa0b973fcde7bcTed Kremenekpublic: 468e5cfd52a3a5d4bb46f77323fa8fa0b973fcde7bcTed Kremenek /// Returns true if calling the specific function or method would possibly 469e5cfd52a3a5d4bb46f77323fa8fa0b973fcde7bcTed Kremenek /// cause global variables to be invalidated. 470e5cfd52a3a5d4bb46f77323fa8fa0b973fcde7bcTed Kremenek bool doesInvalidateGlobals(const CallOrObjCMessage &callOrMessage) const; 471e5cfd52a3a5d4bb46f77323fa8fa0b973fcde7bcTed Kremenek 472b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek}; 4731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 47465423aeb996a296cf2964f136ce4a4a937bd1687Zhongxing Xu} // end ento namespace 4755a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 476c0c3f5dbc9e78aa53a86c7d5e3eeda23ddad93d6Ted Kremenek} // end clang namespace 477c0c3f5dbc9e78aa53a86c7d5e3eeda23ddad93d6Ted Kremenek 478d065d6080f0620bb80b933f3f5d52d37bb2ea770Ted Kremenek#endif 479