ExprEngine.h revision f4e3cfbe8abd124be6341ef5d714819b4fbd9082
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" 249b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/BugReporter/BugReporter.h" 25c0c3f5dbc9e78aa53a86c7d5e3eeda23ddad93d6Ted Kremenek#include "clang/AST/Type.h" 26f494b579b22f9950f5af021f0bf9879a91bb8b41Steve Naroff#include "clang/AST/ExprObjC.h" 27bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu#include "clang/AST/ExprCXX.h" 284beaa9f51b2da57c64740cef2bd1c2fdb0c325d5Ted Kremenek#include "clang/AST/StmtObjC.h" 2977349cb20bfd7069d081f84c91975bfa8ef60a32Ted Kremenek 301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpnamespace clang { 315a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 325a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidisclass ObjCForCollectionStmt; 335a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 349ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremeneknamespace ento { 355a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 365e2d2c2ee3cf410643e0f9a5701708e51409d973Benjamin Kramerclass AnalysisManager; 37f494b579b22f9950f5af021f0bf9879a91bb8b41Steve Naroff 38d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidisclass ExprEngine : public SubEngine { 3925e695b2d574d919cc1bbddf3a2efe073d449b1cZhongxing Xu AnalysisManager &AMgr; 4025e695b2d574d919cc1bbddf3a2efe073d449b1cZhongxing Xu 41d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis CoreEngine Engine; 421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// G - the simulation graph. 44031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ExplodedGraph& G; 451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 46d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// Builder - The current StmtNodeBuilder which is used when building the 47b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// nodes for a given statement. 48d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis StmtNodeBuilder* Builder; 491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 50b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// StateMgr - Object that manages the data for all created states. 514adc81e540b874bafa15715fd2c5cb662463debdTed Kremenek GRStateManager StateMgr; 52cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek 53b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// SymMgr - Object that manages the symbol information. 54b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek SymbolManager& SymMgr; 551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 56846eabd187be4bfe992e8bca131166b734d86e0dTed Kremenek /// svalBuilder - SValBuilder object that creates SVals from expressions. 57846eabd187be4bfe992e8bca131166b734d86e0dTed Kremenek SValBuilder &svalBuilder; 581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 59846d4e923bf11bcdc2816758aafa331795f29230Ted Kremenek /// EntryNode - The immediate predecessor node. 60031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ExplodedNode* EntryNode; 61846d4e923bf11bcdc2816758aafa331795f29230Ted Kremenek 62846d4e923bf11bcdc2816758aafa331795f29230Ted Kremenek /// CleanedState - The state for EntryNode "cleaned" of all dead 630d093d3005dd583675a45a85bd688063572cc8afTed Kremenek /// variables and symbols (as determined by a liveness analysis). 641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const GRState* CleanedState; 651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 660a3ed3143b00f237decb1288c1ff574ae09eba4eTed Kremenek /// currentStmt - The current block-level statement. 670a3ed3143b00f237decb1288c1ff574ae09eba4eTed Kremenek const Stmt* currentStmt; 681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 69e448ab4f9dd162802f5d7cfea60f7830cc61c654Ted Kremenek // Obj-C Class Identifiers. 70e448ab4f9dd162802f5d7cfea60f7830cc61c654Ted Kremenek IdentifierInfo* NSExceptionII; 711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 72e448ab4f9dd162802f5d7cfea60f7830cc61c654Ted Kremenek // Obj-C Selectors. 73e448ab4f9dd162802f5d7cfea60f7830cc61c654Ted Kremenek Selector* NSExceptionInstanceRaiseSelectors; 74e448ab4f9dd162802f5d7cfea60f7830cc61c654Ted Kremenek Selector RaiseSel; 751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 769e9595b12e9b55586c4d50d370f429c7a3c92a90Ted Kremenek /// The BugReporter associated with this engine. It is important that 779e9595b12e9b55586c4d50d370f429c7a3c92a90Ted Kremenek /// this object be placed at the very end of member variables so that its 78d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// destructor is called before the rest of the ExprEngine is destroyed. 79cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek GRBugReporter BR; 8032a58084a4c53e6938dd81bfce224db25a5976d1Ted Kremenek 81d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis llvm::OwningPtr<TransferFuncs> TF; 821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 83b22d589e2ccd09cada0bcea136f0966883a8bb11Ted Kremenekpublic: 84d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis ExprEngine(AnalysisManager &mgr, TransferFuncs *tf); 85cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek 86d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis ~ExprEngine(); 871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8825e695b2d574d919cc1bbddf3a2efe073d449b1cZhongxing Xu void ExecuteWorkList(const LocationContext *L, unsigned Steps = 150000) { 89d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis Engine.ExecuteWorkList(L, Steps, 0); 902ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu } 912ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu 922ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu /// Execute the work list with an initial state. Nodes that reaches the exit 932ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu /// of the function are added into the Dst set, which represent the exit 942ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu /// state of the function call. 952ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu void ExecuteWorkListWithInitialState(const LocationContext *L, unsigned Steps, 962ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu const GRState *InitState, 972ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu ExplodedNodeSet &Dst) { 98d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis Engine.ExecuteWorkListWithInitialState(L, Steps, InitState, Dst); 99b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek } 1001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 101b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// getContext - Return the ASTContext associated with this analysis. 102c77a55126fcad66fb086f8e100a494caa2496a2dZhongxing Xu ASTContext& getContext() const { return AMgr.getASTContext(); } 1035032ffe4259e7d436f2eb19e5a29fdae559e7c12Zhongxing Xu 1042ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu virtual AnalysisManager &getAnalysisManager() { return AMgr; } 1051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 106769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis CheckerManager &getCheckerManager() const { 107769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis return *AMgr.getCheckerManager(); 108769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } 109769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 110846eabd187be4bfe992e8bca131166b734d86e0dTed Kremenek SValBuilder &getSValBuilder() { return svalBuilder; } 1111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 112d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis TransferFuncs& getTF() { return *TF; } 1131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 114cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek BugReporter& getBugReporter() { return BR; } 1151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 116d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis StmtNodeBuilder &getBuilder() { assert(Builder); return *Builder; } 117ec9227fea66c3439991fc84b0d33b0a8b4b8875eZhongxing Xu 118d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis // FIXME: Remove once TransferFuncs is no longer referenced. 119d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis void setTransferFunction(TransferFuncs* tf); 1201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 121e01c98767dfd7153c3c84637c36659e3bbe16ff7Ted Kremenek /// ViewGraph - Visualize the ExplodedGraph created by executing the 122e01c98767dfd7153c3c84637c36659e3bbe16ff7Ted Kremenek /// simulation. 123ffe0f43806d4823271c2406c1fccc2373115c36aTed Kremenek void ViewGraph(bool trim = false); 1241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 125031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu void ViewGraph(ExplodedNode** Beg, ExplodedNode** End); 1261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 127b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// getInitialState - Return the initial state used for the root vertex 128b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// in the ExplodedGraph. 12917fd8632dcda97022a51effc24060eacdad9dbe0Zhongxing Xu const GRState* getInitialState(const LocationContext *InitLoc); 1301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 131031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ExplodedGraph& getGraph() { return G; } 132031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu const ExplodedGraph& getGraph() const { return G; } 13350a6d0ce344c02782e0207574005c3b2aaa5077cTed Kremenek 134e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek /// processCFGElement - Called by CoreEngine. Used to generate new successor 1359c6cd67ea416bace666d614c84d5531124287653Zhongxing Xu /// nodes by processing the 'effects' of a CFG element. 136e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processCFGElement(const CFGElement E, StmtNodeBuilder& builder); 1379c6cd67ea416bace666d614c84d5531124287653Zhongxing Xu 138d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis void ProcessStmt(const CFGStmt S, StmtNodeBuilder &builder); 1399c6cd67ea416bace666d614c84d5531124287653Zhongxing Xu 140d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis void ProcessInitializer(const CFGInitializer I, StmtNodeBuilder &builder); 1419c6cd67ea416bace666d614c84d5531124287653Zhongxing Xu 142d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis void ProcessImplicitDtor(const CFGImplicitDtor D, StmtNodeBuilder &builder); 1431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1444ffcb9974c6b7142c4a1483abfcb1f88b6371c45Zhongxing Xu void ProcessAutomaticObjDtor(const CFGAutomaticObjDtor D, 145d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis StmtNodeBuilder &builder); 146d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis void ProcessBaseDtor(const CFGBaseDtor D, StmtNodeBuilder &builder); 147d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis void ProcessMemberDtor(const CFGMemberDtor D, StmtNodeBuilder &builder); 1484ffcb9974c6b7142c4a1483abfcb1f88b6371c45Zhongxing Xu void ProcessTemporaryDtor(const CFGTemporaryDtor D, 149d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis StmtNodeBuilder &builder); 1504ffcb9974c6b7142c4a1483abfcb1f88b6371c45Zhongxing Xu 15127c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek /// Called by CoreEngine when processing the entrance of a CFGBlock. 15227c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek virtual void processCFGBlockEntrance(ExplodedNodeSet &dstNodes, 15327c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek GenericNodeBuilder<BlockEntrance> &nodeBuilder); 15427c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek 155d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// ProcessBranch - Called by CoreEngine. Used to generate successor 156b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// nodes by processing the 'effects' of a branch condition. 157e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processBranch(const Stmt* Condition, const Stmt* Term, 158d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis BranchNodeBuilder& builder); 1591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 160e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek /// processIndirectGoto - Called by CoreEngine. Used to generate successor 161b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// nodes by processing the 'effects' of a computed goto jump. 162e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processIndirectGoto(IndirectGotoNodeBuilder& builder); 1631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 164d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// ProcessSwitch - Called by CoreEngine. Used to generate successor 165b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// nodes by processing the 'effects' of a switch statement. 166e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processSwitch(SwitchNodeBuilder& builder); 1671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 168d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// ProcessEndPath - Called by CoreEngine. Used to generate end-of-path 16911062b118476368fa5b294954713e5df97d8599fTed Kremenek /// nodes when the control reaches the end of a function. 170e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processEndOfFunction(EndOfFunctionNodeBuilder& builder); 171102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 172ccc263b44c62ce3a02f797a3ddb3d6017cf0e5e4Ted Kremenek /// Generate the entry node of the callee. 173e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processCallEnter(CallEnterNodeBuilder &builder); 174102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 175ccc263b44c62ce3a02f797a3ddb3d6017cf0e5e4Ted Kremenek /// Generate the first post callsite node. 176e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processCallExit(CallExitNodeBuilder &builder); 177102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 178d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// Called by CoreEngine when the analysis worklist has terminated. 179e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek void processEndWorklist(bool hasWorkRemaining); 180ccc263b44c62ce3a02f797a3ddb3d6017cf0e5e4Ted Kremenek 1819c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek /// evalAssume - Callback function invoked by the ConstraintManager when 18232a58084a4c53e6938dd81bfce224db25a5976d1Ted Kremenek /// making assumptions about state values. 183e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek const GRState *processAssume(const GRState *state, SVal cond,bool assumption); 1841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 185e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek /// wantsRegionChangeUpdate - Called by GRStateManager to determine if a 186e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek /// region change should trigger a processRegionChanges update. 187e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek bool wantsRegionChangeUpdate(const GRState* state); 188c2b7dfaad674587cfd220ff447b3710d252130c3Jordy Rose 189e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek /// processRegionChanges - Called by GRStateManager whenever a change is made 190c2b7dfaad674587cfd220ff447b3710d252130c3Jordy Rose /// to the store. Used to update checkers that track region values. 191e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek const GRState* processRegionChanges(const GRState *state, 192c2b7dfaad674587cfd220ff447b3710d252130c3Jordy Rose const MemRegion * const *Begin, 193c2b7dfaad674587cfd220ff447b3710d252130c3Jordy Rose const MemRegion * const *End); 194c2b7dfaad674587cfd220ff447b3710d252130c3Jordy Rose 1952ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu virtual GRStateManager& getStateManager() { return StateMgr; } 19690e72e4106a0c3efa7575e9f9cba0c775bb54552Zhongxing Xu 19790e72e4106a0c3efa7575e9f9cba0c775bb54552Zhongxing Xu StoreManager& getStoreManager() { return StateMgr.getStoreManager(); } 1981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 199a516ce16b472e61924f5dd10d181c3e8330979afTed Kremenek ConstraintManager& getConstraintManager() { 200a516ce16b472e61924f5dd10d181c3e8330979afTed Kremenek return StateMgr.getConstraintManager(); 201a516ce16b472e61924f5dd10d181c3e8330979afTed Kremenek } 2021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 203c8413fd03f73084a5c93028f8b4db619fc388087Ted Kremenek // FIXME: Remove when we migrate over to just using SValBuilder. 2046297a8ec313c722db50f686fd190842b7ea91118Ted Kremenek BasicValueFactory& getBasicVals() { 2056297a8ec313c722db50f686fd190842b7ea91118Ted Kremenek return StateMgr.getBasicVals(); 2066297a8ec313c722db50f686fd190842b7ea91118Ted Kremenek } 2076297a8ec313c722db50f686fd190842b7ea91118Ted Kremenek const BasicValueFactory& getBasicVals() const { 2086297a8ec313c722db50f686fd190842b7ea91118Ted Kremenek return StateMgr.getBasicVals(); 2096297a8ec313c722db50f686fd190842b7ea91118Ted Kremenek } 2101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 211044b6f0417cb98741f277602fabf5f07ec9a02c0Ted Kremenek // FIXME: Remove when we migrate over to just using ValueManager. 21200a3a5f024ac54088ab887712b292171188064f0Ted Kremenek SymbolManager& getSymbolManager() { return SymMgr; } 21300a3a5f024ac54088ab887712b292171188064f0Ted Kremenek const SymbolManager& getSymbolManager() const { return SymMgr; } 2141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 215bc42c533e7d3d946704a49e242939dd232f33072Tom Care // Functions for external checking of whether we have unfinished work 216d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis bool wasBlockAborted() const { return Engine.wasBlockAborted(); } 217d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis bool hasEmptyWorkList() const { return !Engine.getWorkList()->hasWork(); } 218bc42c533e7d3d946704a49e242939dd232f33072Tom Care bool hasWorkRemaining() const { 219d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis return wasBlockAborted() || Engine.getWorkList()->hasWork(); 220bc42c533e7d3d946704a49e242939dd232f33072Tom Care } 221bc42c533e7d3d946704a49e242939dd232f33072Tom Care 222d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis const CoreEngine &getCoreEngine() const { return Engine; } 223bc42c533e7d3d946704a49e242939dd232f33072Tom Care 22405a2378c708688c8ef498a5cea40ed7f5db15fa5Ted Kremenekprotected: 225031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu const GRState* GetState(ExplodedNode* N) { 226846d4e923bf11bcdc2816758aafa331795f29230Ted Kremenek return N == EntryNode ? CleanedState : N->getState(); 227512c913a6f93d225faacdb8e20308f5c4065c3ebTed Kremenek } 2281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2291670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenekpublic: 2303992a50eea030a2913f1d267554f55ecd00d694cZhongxing Xu ExplodedNode* MakeNode(ExplodedNodeSet& Dst, const Stmt* S, 2313992a50eea030a2913f1d267554f55ecd00d694cZhongxing Xu ExplodedNode* Pred, const GRState* St, 232bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu ProgramPoint::Kind K = ProgramPoint::PostStmtKind, 233bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu const void *tag = 0); 2347b71c1977cccafa23f9ecb3b0b22199e61ae634cZhongxing Xu 235b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// Visit - Transfer function logic for all statements. Dispatches to 236b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// other functions that handle specific kinds of statements. 23703509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void Visit(const Stmt* S, ExplodedNode* Pred, ExplodedNodeSet& Dst); 2381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 239c5b1bf10133a8ecbfe9e6b3ec92bae84e3d927e8Ted Kremenek /// VisitArraySubscriptExpr - Transfer function for array accesses. 240892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek void VisitLvalArraySubscriptExpr(const ArraySubscriptExpr* Ex, 241892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNode* Pred, 242892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet& Dst); 2431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 244ef44bfb9d0f15ba0391f8346c9f01355fb450a09Ted Kremenek /// VisitAsmStmt - Transfer function logic for inline asm. 24503509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitAsmStmt(const AsmStmt* A, ExplodedNode* Pred, ExplodedNodeSet& Dst); 2461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24703509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitAsmStmtHelperOutputs(const AsmStmt* A, 24803509aea098772644bf4662dc1c88634818ceeccZhongxing Xu AsmStmt::const_outputs_iterator I, 24903509aea098772644bf4662dc1c88634818ceeccZhongxing Xu AsmStmt::const_outputs_iterator E, 250031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ExplodedNode* Pred, ExplodedNodeSet& Dst); 2511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25203509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitAsmStmtHelperInputs(const AsmStmt* A, 25303509aea098772644bf4662dc1c88634818ceeccZhongxing Xu AsmStmt::const_inputs_iterator I, 25403509aea098772644bf4662dc1c88634818ceeccZhongxing Xu AsmStmt::const_inputs_iterator E, 255031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ExplodedNode* Pred, ExplodedNodeSet& Dst); 256c95ad9ff6e574aecdd759542d5578bc65d586d93Ted Kremenek 257c95ad9ff6e574aecdd759542d5578bc65d586d93Ted Kremenek /// VisitBlockExpr - Transfer function logic for BlockExprs. 25803509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitBlockExpr(const BlockExpr *BE, ExplodedNode *Pred, 25903509aea098772644bf4662dc1c88634818ceeccZhongxing Xu ExplodedNodeSet &Dst); 2601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 261b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// VisitBinaryOperator - Transfer function logic for binary operators. 26203509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitBinaryOperator(const BinaryOperator* B, ExplodedNode* Pred, 263892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet& Dst); 264469ecbded3616416ef938ed94a67f86149faf226Ted Kremenek 2651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 266de43424560f1a744de6214dab6bbee28ad8437f5Ted Kremenek /// VisitCall - Transfer function for function calls. 26703509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitCall(const CallExpr* CE, ExplodedNode* Pred, 26803509aea098772644bf4662dc1c88634818ceeccZhongxing Xu CallExpr::const_arg_iterator AI, 26903509aea098772644bf4662dc1c88634818ceeccZhongxing Xu CallExpr::const_arg_iterator AE, 270892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet& Dst); 2711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 272b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// VisitCast - Transfer function logic for all casts (implicit and explicit). 27303509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitCast(const CastExpr *CastE, const Expr *Ex, ExplodedNode *Pred, 274892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet &Dst); 275e1c2a675e0c089e1f53cbd55d2197a8beaa852aeTed Kremenek 2764f09027385466f1f4c382c80ca77157e2aef97d9Ted Kremenek /// VisitCompoundLiteralExpr - Transfer function logic for compound literals. 27703509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitCompoundLiteralExpr(const CompoundLiteralExpr* CL, 278892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNode* Pred, ExplodedNodeSet& Dst); 2791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 280892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek /// Transfer function logic for DeclRefExprs and BlockDeclRefExprs. 28103509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitCommonDeclRefExpr(const Expr* DR, const NamedDecl *D, 282892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNode* Pred, ExplodedNodeSet& Dst); 28367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 284b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// VisitDeclStmt - Transfer function logic for DeclStmts. 28503509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitDeclStmt(const DeclStmt* DS, ExplodedNode* Pred, 28603509aea098772644bf4662dc1c88634818ceeccZhongxing Xu ExplodedNodeSet& Dst); 2871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 288b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// VisitGuardedExpr - Transfer function logic for ?, __builtin_choose 28903509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitGuardedExpr(const Expr* Ex, const Expr* L, const Expr* R, 29003509aea098772644bf4662dc1c88634818ceeccZhongxing Xu ExplodedNode* Pred, ExplodedNodeSet& Dst); 291c4f8706b6539e06a5de153bd72850bb2e0a71456Zhongxing Xu 292fcfb503c280ed8c66d428fed911b2846c0f434fcTed Kremenek /// VisitCondInit - Transfer function for handling the initialization 293fcfb503c280ed8c66d428fed911b2846c0f434fcTed Kremenek /// of a condition variable in an IfStmt, SwitchStmt, etc. 29403509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitCondInit(const VarDecl *VD, const Stmt *S, ExplodedNode *Pred, 295fcfb503c280ed8c66d428fed911b2846c0f434fcTed Kremenek ExplodedNodeSet& Dst); 29661dfbecd8e6181b2ba42ffb5feede27a2bab3b8aTed Kremenek 29703509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitInitListExpr(const InitListExpr* E, ExplodedNode* Pred, 298c05f23994720b3eb0a3b3494e7bfcec9e1536c89Ted Kremenek ExplodedNodeSet& Dst); 299c4f8706b6539e06a5de153bd72850bb2e0a71456Zhongxing Xu 300b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// VisitLogicalExpr - Transfer function logic for '&&', '||' 30103509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitLogicalExpr(const BinaryOperator* B, ExplodedNode* Pred, 302c05f23994720b3eb0a3b3494e7bfcec9e1536c89Ted Kremenek ExplodedNodeSet& Dst); 3031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 304469ecbded3616416ef938ed94a67f86149faf226Ted Kremenek /// VisitMemberExpr - Transfer function for member expressions. 30503509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitMemberExpr(const MemberExpr* M, ExplodedNode* Pred, 306892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet& Dst); 3071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3084beaa9f51b2da57c64740cef2bd1c2fdb0c325d5Ted Kremenek /// Transfer function logic for ObjCAtSynchronizedStmts. 3094beaa9f51b2da57c64740cef2bd1c2fdb0c325d5Ted Kremenek void VisitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt *S, 3104beaa9f51b2da57c64740cef2bd1c2fdb0c325d5Ted Kremenek ExplodedNode *Pred, ExplodedNodeSet &Dst); 3114beaa9f51b2da57c64740cef2bd1c2fdb0c325d5Ted Kremenek 31214429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis void VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *E, 31314429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis ExplodedNode *Pred, ExplodedNodeSet &Dst); 31414429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis 315892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek /// Transfer function logic for computing the lvalue of an Objective-C ivar. 316892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek void VisitLvalObjCIvarRefExpr(const ObjCIvarRefExpr* DR, ExplodedNode* Pred, 317892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet& Dst); 318af3374187c47acea45706eab6744be6b1c66a856Ted Kremenek 319af3374187c47acea45706eab6744be6b1c66a856Ted Kremenek /// VisitObjCForCollectionStmt - Transfer function logic for 320af3374187c47acea45706eab6744be6b1c66a856Ted Kremenek /// ObjCForCollectionStmt. 32103509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitObjCForCollectionStmt(const ObjCForCollectionStmt* S, 32203509aea098772644bf4662dc1c88634818ceeccZhongxing Xu ExplodedNode* Pred, ExplodedNodeSet& Dst); 3231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32403509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitObjCForCollectionStmtAux(const ObjCForCollectionStmt* S, 325bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu ExplodedNode* Pred, 326031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ExplodedNodeSet& Dst, SVal ElementV); 3271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 328469ecbded3616416ef938ed94a67f86149faf226Ted Kremenek /// VisitObjCMessageExpr - Transfer function for ObjC message expressions. 32903509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitObjCMessageExpr(const ObjCMessageExpr* ME, ExplodedNode* Pred, 330892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet& Dst); 3315286e2ddfd8332520de4c076e49991d6fe557adbArgyrios Kyrtzidis void VisitObjCMessage(const ObjCMessage &msg, ExplodedNodeSet &Src, 3325286e2ddfd8332520de4c076e49991d6fe557adbArgyrios Kyrtzidis ExplodedNodeSet& Dst); 3331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33402737ed29d7fff2206f7c7ee958cdf0665e35542Ted Kremenek /// VisitReturnStmt - Transfer function logic for return statements. 33503509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitReturnStmt(const ReturnStmt* R, ExplodedNode* Pred, 33603509aea098772644bf4662dc1c88634818ceeccZhongxing Xu ExplodedNodeSet& Dst); 3378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 3388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// VisitOffsetOfExpr - Transfer function for offsetof. 33903509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitOffsetOfExpr(const OffsetOfExpr* Ex, ExplodedNode* Pred, 3408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor ExplodedNodeSet& Dst); 3411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 342f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne /// VisitUnaryExprOrTypeTraitExpr - Transfer function for sizeof. 343f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne void VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr* Ex, 344f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne ExplodedNode* Pred, ExplodedNodeSet& Dst); 3451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 346b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek /// VisitUnaryOperator - Transfer function logic for unary operators. 34703509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitUnaryOperator(const UnaryOperator* B, ExplodedNode* Pred, 348892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNodeSet& Dst); 349bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu 35003509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitCXXThisExpr(const CXXThisExpr *TE, ExplodedNode *Pred, 351bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu ExplodedNodeSet & Dst); 352d706434b0231c76fd9acf30060646a7aa8f69aefZhongxing Xu 353d706434b0231c76fd9acf30060646a7aa8f69aefZhongxing Xu void VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *expr, 354892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNode *Pred, ExplodedNodeSet &Dst) { 355892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek VisitCXXConstructExpr(expr, 0, Pred, Dst); 356d706434b0231c76fd9acf30060646a7aa8f69aefZhongxing Xu } 357d706434b0231c76fd9acf30060646a7aa8f69aefZhongxing Xu 3587ce351db56fbce162a3b650518ce05b5c61ebf36Zhongxing Xu void VisitCXXConstructExpr(const CXXConstructExpr *E, const MemRegion *Dest, 359892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek ExplodedNode *Pred, ExplodedNodeSet &Dst); 360950db87e5efe2ff0c7234116929f8637aaf7ae7aZhongxing Xu 361b13453bd8a91f331d0910ca95ad52aa41b52f648Zhongxing Xu void VisitCXXDestructor(const CXXDestructorDecl *DD, 362b13453bd8a91f331d0910ca95ad52aa41b52f648Zhongxing Xu const MemRegion *Dest, const Stmt *S, 363b13453bd8a91f331d0910ca95ad52aa41b52f648Zhongxing Xu ExplodedNode *Pred, ExplodedNodeSet &Dst); 364b13453bd8a91f331d0910ca95ad52aa41b52f648Zhongxing Xu 365950db87e5efe2ff0c7234116929f8637aaf7ae7aZhongxing Xu void VisitCXXMemberCallExpr(const CXXMemberCallExpr *MCE, ExplodedNode *Pred, 366950db87e5efe2ff0c7234116929f8637aaf7ae7aZhongxing Xu ExplodedNodeSet &Dst); 367950db87e5efe2ff0c7234116929f8637aaf7ae7aZhongxing Xu 3686a02b609c2e23b28d24f9db4c8006137c6b55ae4Marcin Swiderski void VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *C, 3696a02b609c2e23b28d24f9db4c8006137c6b55ae4Marcin Swiderski ExplodedNode *Pred, ExplodedNodeSet &Dst); 3706a02b609c2e23b28d24f9db4c8006137c6b55ae4Marcin Swiderski 37103509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitCXXNewExpr(const CXXNewExpr *CNE, ExplodedNode *Pred, 372856c6bcaea56e05255e9f3997ddd56b5c18a14f0Zhongxing Xu ExplodedNodeSet &Dst); 373856c6bcaea56e05255e9f3997ddd56b5c18a14f0Zhongxing Xu 37403509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void VisitCXXDeleteExpr(const CXXDeleteExpr *CDE, ExplodedNode *Pred, 3756b8513829895e56a7b97e787ea74520bc626512eZhongxing Xu ExplodedNodeSet &Dst); 3766b8513829895e56a7b97e787ea74520bc626512eZhongxing Xu 3777ce351db56fbce162a3b650518ce05b5c61ebf36Zhongxing Xu void VisitAggExpr(const Expr *E, const MemRegion *Dest, ExplodedNode *Pred, 3787b71c1977cccafa23f9ecb3b0b22199e61ae634cZhongxing Xu ExplodedNodeSet &Dst); 3797b71c1977cccafa23f9ecb3b0b22199e61ae634cZhongxing Xu 380bc37b8dd9914e02580f531fa6e5e72be34d9675eZhongxing Xu /// Create a C++ temporary object for an rvalue. 38103509aea098772644bf4662dc1c88634818ceeccZhongxing Xu void CreateCXXTemporaryObject(const Expr *Ex, ExplodedNode *Pred, 382bc37b8dd9914e02580f531fa6e5e72be34d9675eZhongxing Xu ExplodedNodeSet &Dst); 383bc37b8dd9914e02580f531fa6e5e72be34d9675eZhongxing Xu 3848e18c1b840882d26039503629d7e4ad4822f3bdaZhongxing Xu /// Synthesize CXXThisRegion. 3859dc84c9455df2a77195147d0210c915dc1775a88Zhongxing Xu const CXXThisRegion *getCXXThisRegion(const CXXRecordDecl *RD, 3868e18c1b840882d26039503629d7e4ad4822f3bdaZhongxing Xu const StackFrameContext *SFC); 3878e18c1b840882d26039503629d7e4ad4822f3bdaZhongxing Xu 38832303020d0f1a21cbcab65ae0c69a4218dc8f0fbZhongxing Xu const CXXThisRegion *getCXXThisRegion(const CXXMethodDecl *decl, 38932303020d0f1a21cbcab65ae0c69a4218dc8f0fbZhongxing Xu const StackFrameContext *frameCtx); 39032303020d0f1a21cbcab65ae0c69a4218dc8f0fbZhongxing Xu 391b17b1b3cc2b0d4d3b263b9384571bbc7f3995771Zhongxing Xu /// Evaluate arguments with a work list algorithm. 3929c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalArguments(ConstExprIterator AI, ConstExprIterator AE, 393b17b1b3cc2b0d4d3b263b9384571bbc7f3995771Zhongxing Xu const FunctionProtoType *FnType, 39482c63bfa0c5130e0cf274c1974b6157ebefc04feMarcin Swiderski ExplodedNode *Pred, ExplodedNodeSet &Dst, 39582c63bfa0c5130e0cf274c1974b6157ebefc04feMarcin Swiderski bool FstArgAsLValue = false); 396b17b1b3cc2b0d4d3b263b9384571bbc7f3995771Zhongxing Xu 3976a02b609c2e23b28d24f9db4c8006137c6b55ae4Marcin Swiderski /// Evaluate method call itself. Used for CXXMethodCallExpr and 3986a02b609c2e23b28d24f9db4c8006137c6b55ae4Marcin Swiderski /// CXXOperatorCallExpr. 3999c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalMethodCall(const CallExpr *MCE, const CXXMethodDecl *MD, 4006a02b609c2e23b28d24f9db4c8006137c6b55ae4Marcin Swiderski const Expr *ThisExpr, ExplodedNode *Pred, 4016a02b609c2e23b28d24f9db4c8006137c6b55ae4Marcin Swiderski ExplodedNodeSet &Src, ExplodedNodeSet &Dst); 4026a02b609c2e23b28d24f9db4c8006137c6b55ae4Marcin Swiderski 4039c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek /// evalEagerlyAssume - Given the nodes in 'Src', eagerly assume symbolic 40448af2a9c1ed3259512f2d1431720add1fbe8fb5fTed Kremenek /// expressions of the form 'x != 0' and generate new nodes (stored in Dst) 40548af2a9c1ed3259512f2d1431720add1fbe8fb5fTed Kremenek /// with those assumptions. 4069c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalEagerlyAssume(ExplodedNodeSet& Dst, ExplodedNodeSet& Src, 40703509aea098772644bf4662dc1c88634818ceeccZhongxing Xu const Expr *Ex); 4081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4099c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek SVal evalMinus(SVal X) { 4109c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek return X.isValid() ? svalBuilder.evalMinus(cast<NonLoc>(X)) : X; 411b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek } 4121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4139c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek SVal evalComplement(SVal X) { 4149c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek return X.isValid() ? svalBuilder.evalComplement(cast<NonLoc>(X)) : X; 41590e420321f60860f4c4e7a68ca9f7567824b46ecTed Kremenek } 416248072a8b9cd956c4ac63172fc2af09790f7c6a9Zhongxing Xu 4171670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenekpublic: 4181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4199c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek SVal evalBinOp(const GRState *state, BinaryOperator::Opcode op, 420cd8f6ac9b613e1fe962ebf9c87d822ce765275e6Ted Kremenek NonLoc L, NonLoc R, QualType T) { 4219c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek return svalBuilder.evalBinOpNN(state, op, L, R, T); 4226297a8ec313c722db50f686fd190842b7ea91118Ted Kremenek } 42310c16657eec144def180ee53d1e0249c9ed2b3b5Ted Kremenek 4249c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek SVal evalBinOp(const GRState *state, BinaryOperator::Opcode op, 425cd8f6ac9b613e1fe962ebf9c87d822ce765275e6Ted Kremenek NonLoc L, SVal R, QualType T) { 4269c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek return R.isValid() ? svalBuilder.evalBinOpNN(state,op,L, cast<NonLoc>(R), T) : R; 427b640b3b5dfccaf259967cb2cb6755c9aa20d4423Ted Kremenek } 4281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4299c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek SVal evalBinOp(const GRState *ST, BinaryOperator::Opcode Op, 430ff4264dae31cf42807b64ecc114906b0b835690aTed Kremenek SVal LHS, SVal RHS, QualType T) { 4319c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek return svalBuilder.evalBinOp(ST, Op, LHS, RHS, T); 432ff4264dae31cf42807b64ecc114906b0b835690aTed Kremenek } 4335b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek 4341670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenekprotected: 435432424d67641d609e4990d791baa782fc161027eArgyrios Kyrtzidis void evalObjCMessage(ExplodedNodeSet& Dst, const ObjCMessage &msg, 436432424d67641d609e4990d791baa782fc161027eArgyrios Kyrtzidis ExplodedNode* Pred, const GRState *state) { 437d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis assert (Builder && "StmtNodeBuilder must be defined."); 438432424d67641d609e4990d791baa782fc161027eArgyrios Kyrtzidis getTF().evalObjCMessage(Dst, *this, *Builder, msg, Pred, state); 439de43424560f1a744de6214dab6bbee28ad8437f5Ted Kremenek } 4401670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenek 44103509aea098772644bf4662dc1c88634818ceeccZhongxing Xu const GRState* MarkBranch(const GRState* St, const Stmt* Terminator, 4421670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenek bool branchTaken); 4431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4449c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek /// evalBind - Handle the semantics of binding a value to a specific location. 4459c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek /// This method is used by evalStore, VisitDeclStmt, and others. 4469c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalBind(ExplodedNodeSet& Dst, const Stmt* StoreE, ExplodedNode* Pred, 447f6f56d4fc8ebce17e7b83eb2c35f57a055c22283Ted Kremenek const GRState* St, SVal location, SVal Val, 448f6f56d4fc8ebce17e7b83eb2c35f57a055c22283Ted Kremenek bool atDeclInit = false); 4491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4501670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenekpublic: 451b4b817d704287836b52b34369009e682f208aa2bTed Kremenek // FIXME: 'tag' should be removed, and a LocationContext should be used 452b4b817d704287836b52b34369009e682f208aa2bTed Kremenek // instead. 453834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan // FIXME: Comment on the meaning of the arguments, when 'St' may not 454834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan // be the same as Pred->state, and when 'location' may not be the 455834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan // same as state->getLValue(Ex). 456834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan /// Simulate a read of the result of Ex. 4579c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalLoad(ExplodedNodeSet& Dst, const Expr* Ex, ExplodedNode* Pred, 458652be346f74feba027bcbdeb6a3e3f4755a0e62cZhongxing Xu const GRState* St, SVal location, const void *tag = 0, 459652be346f74feba027bcbdeb6a3e3f4755a0e62cZhongxing Xu QualType LoadTy = QualType()); 4601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 461b4b817d704287836b52b34369009e682f208aa2bTed Kremenek // FIXME: 'tag' should be removed, and a LocationContext should be used 462b4b817d704287836b52b34369009e682f208aa2bTed Kremenek // instead. 4639c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalStore(ExplodedNodeSet& Dst, const Expr* AssignE, const Expr* StoreE, 464b4b817d704287836b52b34369009e682f208aa2bTed Kremenek ExplodedNode* Pred, const GRState* St, SVal TargetLV, SVal Val, 4651670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenek const void *tag = 0); 466834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wanprivate: 4679c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalLoadCommon(ExplodedNodeSet& Dst, const Expr* Ex, ExplodedNode* Pred, 468852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek const GRState* St, SVal location, const void *tag, 469852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek QualType LoadTy); 470852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek 471852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek // FIXME: 'tag' should be removed, and a LocationContext should be used 472852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek // instead. 4739c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek void evalLocation(ExplodedNodeSet &Dst, const Stmt *S, ExplodedNode* Pred, 474852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek const GRState* St, SVal location, 475852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek const void *tag, bool isLoad); 4761c625f25055331bf76ab5479a8060d2b0f61e8b8Zhongxing Xu 4771c625f25055331bf76ab5479a8060d2b0f61e8b8Zhongxing Xu bool InlineCall(ExplodedNodeSet &Dst, const CallExpr *CE, ExplodedNode *Pred); 478b387a3f23e423d62c053be86294b703da1d1a222Ted Kremenek}; 4791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 48065423aeb996a296cf2964f136ce4a4a937bd1687Zhongxing Xu} // end ento namespace 4815a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 482c0c3f5dbc9e78aa53a86c7d5e3eeda23ddad93d6Ted Kremenek} // end clang namespace 483c0c3f5dbc9e78aa53a86c7d5e3eeda23ddad93d6Ted Kremenek 484d065d6080f0620bb80b933f3f5d52d37bb2ea770Ted Kremenek#endif 485