CheckerManager.cpp revision 8bef8238181a30e52dea380789a7e2d760eac532
1//===--- CheckerManager.cpp - Static Analyzer Checker Manager -------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// Defines the Static Analyzer Checker Manager. 11// 12//===----------------------------------------------------------------------===// 13 14#include "clang/StaticAnalyzer/Core/CheckerManager.h" 15#include "clang/StaticAnalyzer/Core/Checker.h" 16#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h" 17#include "clang/StaticAnalyzer/Core/PathSensitive/ObjCMessage.h" 18#include "clang/Analysis/ProgramPoint.h" 19#include "clang/AST/DeclBase.h" 20 21using namespace clang; 22using namespace ento; 23 24bool CheckerManager::hasPathSensitiveCheckers() const { 25 return !StmtCheckers.empty() || 26 !PreObjCMessageCheckers.empty() || 27 !PostObjCMessageCheckers.empty() || 28 !LocationCheckers.empty() || 29 !BindCheckers.empty() || 30 !EndAnalysisCheckers.empty() || 31 !EndPathCheckers.empty() || 32 !BranchConditionCheckers.empty() || 33 !LiveSymbolsCheckers.empty() || 34 !DeadSymbolsCheckers.empty() || 35 !RegionChangesCheckers.empty() || 36 !EvalAssumeCheckers.empty() || 37 !EvalCallCheckers.empty() || 38 !InlineCallCheckers.empty(); 39} 40 41void CheckerManager::finishedCheckerRegistration() { 42#ifndef NDEBUG 43 // Make sure that for every event that has listeners, there is at least 44 // one dispatcher registered for it. 45 for (llvm::DenseMap<EventTag, EventInfo>::iterator 46 I = Events.begin(), E = Events.end(); I != E; ++I) 47 assert(I->second.HasDispatcher && "No dispatcher registered for an event"); 48#endif 49} 50 51//===----------------------------------------------------------------------===// 52// Functions for running checkers for AST traversing.. 53//===----------------------------------------------------------------------===// 54 55void CheckerManager::runCheckersOnASTDecl(const Decl *D, AnalysisManager& mgr, 56 BugReporter &BR) { 57 assert(D); 58 59 unsigned DeclKind = D->getKind(); 60 CachedDeclCheckers *checkers = 0; 61 CachedDeclCheckersMapTy::iterator CCI = CachedDeclCheckersMap.find(DeclKind); 62 if (CCI != CachedDeclCheckersMap.end()) { 63 checkers = &(CCI->second); 64 } else { 65 // Find the checkers that should run for this Decl and cache them. 66 checkers = &CachedDeclCheckersMap[DeclKind]; 67 for (unsigned i = 0, e = DeclCheckers.size(); i != e; ++i) { 68 DeclCheckerInfo &info = DeclCheckers[i]; 69 if (info.IsForDeclFn(D)) 70 checkers->push_back(info.CheckFn); 71 } 72 } 73 74 assert(checkers); 75 for (CachedDeclCheckers::iterator 76 I = checkers->begin(), E = checkers->end(); I != E; ++I) 77 (*I)(D, mgr, BR); 78} 79 80void CheckerManager::runCheckersOnASTBody(const Decl *D, AnalysisManager& mgr, 81 BugReporter &BR) { 82 assert(D && D->hasBody()); 83 84 for (unsigned i = 0, e = BodyCheckers.size(); i != e; ++i) 85 BodyCheckers[i](D, mgr, BR); 86} 87 88//===----------------------------------------------------------------------===// 89// Functions for running checkers for path-sensitive checking. 90//===----------------------------------------------------------------------===// 91 92template <typename CHECK_CTX> 93static void expandGraphWithCheckers(CHECK_CTX checkCtx, 94 ExplodedNodeSet &Dst, 95 const ExplodedNodeSet &Src) { 96 const NodeBuilderContext &BldrCtx = checkCtx.Eng.getBuilderContext(); 97 if (Src.empty()) 98 return; 99 100 typename CHECK_CTX::CheckersTy::const_iterator 101 I = checkCtx.checkers_begin(), E = checkCtx.checkers_end(); 102 if (I == E) { 103 Dst.insert(Src); 104 return; 105 } 106 107 ExplodedNodeSet Tmp1, Tmp2; 108 const ExplodedNodeSet *PrevSet = &Src; 109 110 for (; I != E; ++I) { 111 ExplodedNodeSet *CurrSet = 0; 112 if (I+1 == E) 113 CurrSet = &Dst; 114 else { 115 CurrSet = (PrevSet == &Tmp1) ? &Tmp2 : &Tmp1; 116 CurrSet->clear(); 117 } 118 119 NodeBuilder B(*PrevSet, *CurrSet, BldrCtx); 120 for (ExplodedNodeSet::iterator NI = PrevSet->begin(), NE = PrevSet->end(); 121 NI != NE; ++NI) { 122 checkCtx.runChecker(*I, B, *NI); 123 } 124 125 // If all the produced transitions are sinks, stop. 126 if (CurrSet->empty()) 127 return; 128 129 // Update which NodeSet is the current one. 130 PrevSet = CurrSet; 131 } 132} 133 134namespace { 135 struct CheckStmtContext { 136 typedef SmallVectorImpl<CheckerManager::CheckStmtFunc> CheckersTy; 137 bool IsPreVisit; 138 const CheckersTy &Checkers; 139 const Stmt *S; 140 ExprEngine &Eng; 141 142 CheckersTy::const_iterator checkers_begin() { return Checkers.begin(); } 143 CheckersTy::const_iterator checkers_end() { return Checkers.end(); } 144 145 CheckStmtContext(bool isPreVisit, const CheckersTy &checkers, 146 const Stmt *s, ExprEngine &eng) 147 : IsPreVisit(isPreVisit), Checkers(checkers), S(s), Eng(eng) { } 148 149 void runChecker(CheckerManager::CheckStmtFunc checkFn, 150 NodeBuilder &Bldr, ExplodedNode *Pred) { 151 // FIXME: Remove respondsToCallback from CheckerContext; 152 ProgramPoint::Kind K = IsPreVisit ? ProgramPoint::PreStmtKind : 153 ProgramPoint::PostStmtKind; 154 const ProgramPoint &L = ProgramPoint::getProgramPoint(S, K, 155 Pred->getLocationContext(), checkFn.Checker); 156 CheckerContext C(Bldr, Eng, Pred, L); 157 158 checkFn(S, C); 159 } 160 }; 161} 162 163/// \brief Run checkers for visiting Stmts. 164void CheckerManager::runCheckersForStmt(bool isPreVisit, 165 ExplodedNodeSet &Dst, 166 const ExplodedNodeSet &Src, 167 const Stmt *S, 168 ExprEngine &Eng) { 169 CheckStmtContext C(isPreVisit, *getCachedStmtCheckersFor(S, isPreVisit), 170 S, Eng); 171 expandGraphWithCheckers(C, Dst, Src); 172} 173 174namespace { 175 struct CheckObjCMessageContext { 176 typedef std::vector<CheckerManager::CheckObjCMessageFunc> CheckersTy; 177 bool IsPreVisit; 178 const CheckersTy &Checkers; 179 const ObjCMessage &Msg; 180 ExprEngine &Eng; 181 182 CheckersTy::const_iterator checkers_begin() { return Checkers.begin(); } 183 CheckersTy::const_iterator checkers_end() { return Checkers.end(); } 184 185 CheckObjCMessageContext(bool isPreVisit, const CheckersTy &checkers, 186 const ObjCMessage &msg, ExprEngine &eng) 187 : IsPreVisit(isPreVisit), Checkers(checkers), Msg(msg), Eng(eng) { } 188 189 void runChecker(CheckerManager::CheckObjCMessageFunc checkFn, 190 NodeBuilder &Bldr, ExplodedNode *Pred) { 191 ProgramPoint::Kind K = IsPreVisit ? ProgramPoint::PreStmtKind : 192 ProgramPoint::PostStmtKind; 193 const ProgramPoint &L = ProgramPoint::getProgramPoint(Msg.getOriginExpr(), 194 K, Pred->getLocationContext(), checkFn.Checker); 195 CheckerContext C(Bldr, Eng, Pred, L); 196 197 checkFn(Msg, C); 198 } 199 }; 200} 201 202/// \brief Run checkers for visiting obj-c messages. 203void CheckerManager::runCheckersForObjCMessage(bool isPreVisit, 204 ExplodedNodeSet &Dst, 205 const ExplodedNodeSet &Src, 206 const ObjCMessage &msg, 207 ExprEngine &Eng) { 208 CheckObjCMessageContext C(isPreVisit, 209 isPreVisit ? PreObjCMessageCheckers 210 : PostObjCMessageCheckers, 211 msg, Eng); 212 expandGraphWithCheckers(C, Dst, Src); 213} 214 215namespace { 216 struct CheckLocationContext { 217 typedef std::vector<CheckerManager::CheckLocationFunc> CheckersTy; 218 const CheckersTy &Checkers; 219 SVal Loc; 220 bool IsLoad; 221 const Stmt *S; 222 ExprEngine &Eng; 223 224 CheckersTy::const_iterator checkers_begin() { return Checkers.begin(); } 225 CheckersTy::const_iterator checkers_end() { return Checkers.end(); } 226 227 CheckLocationContext(const CheckersTy &checkers, 228 SVal loc, bool isLoad, const Stmt *s, ExprEngine &eng) 229 : Checkers(checkers), Loc(loc), IsLoad(isLoad), S(s), Eng(eng) { } 230 231 void runChecker(CheckerManager::CheckLocationFunc checkFn, 232 NodeBuilder &Bldr, ExplodedNode *Pred) { 233 ProgramPoint::Kind K = IsLoad ? ProgramPoint::PreLoadKind : 234 ProgramPoint::PreStoreKind; 235 const ProgramPoint &L = ProgramPoint::getProgramPoint(S, K, 236 Pred->getLocationContext(), checkFn.Checker); 237 CheckerContext C(Bldr, Eng, Pred, L); 238 239 checkFn(Loc, IsLoad, S, C); 240 } 241 }; 242} 243 244/// \brief Run checkers for load/store of a location. 245 246void CheckerManager::runCheckersForLocation(ExplodedNodeSet &Dst, 247 const ExplodedNodeSet &Src, 248 SVal location, bool isLoad, 249 const Stmt *S, ExprEngine &Eng) { 250 CheckLocationContext C(LocationCheckers, location, isLoad, S, Eng); 251 expandGraphWithCheckers(C, Dst, Src); 252} 253 254namespace { 255 struct CheckBindContext { 256 typedef std::vector<CheckerManager::CheckBindFunc> CheckersTy; 257 const CheckersTy &Checkers; 258 SVal Loc; 259 SVal Val; 260 const Stmt *S; 261 ExprEngine &Eng; 262 ProgramPoint::Kind PointKind; 263 264 CheckersTy::const_iterator checkers_begin() { return Checkers.begin(); } 265 CheckersTy::const_iterator checkers_end() { return Checkers.end(); } 266 267 CheckBindContext(const CheckersTy &checkers, 268 SVal loc, SVal val, const Stmt *s, ExprEngine &eng, 269 ProgramPoint::Kind PK) 270 : Checkers(checkers), Loc(loc), Val(val), S(s), Eng(eng), PointKind(PK) {} 271 272 void runChecker(CheckerManager::CheckBindFunc checkFn, 273 NodeBuilder &Bldr, ExplodedNode *Pred) { 274 const ProgramPoint &L = ProgramPoint::getProgramPoint(S, PointKind, 275 Pred->getLocationContext(), checkFn.Checker); 276 CheckerContext C(Bldr, Eng, Pred, L); 277 278 checkFn(Loc, Val, S, C); 279 } 280 }; 281} 282 283/// \brief Run checkers for binding of a value to a location. 284void CheckerManager::runCheckersForBind(ExplodedNodeSet &Dst, 285 const ExplodedNodeSet &Src, 286 SVal location, SVal val, 287 const Stmt *S, ExprEngine &Eng, 288 ProgramPoint::Kind PointKind) { 289 CheckBindContext C(BindCheckers, location, val, S, Eng, PointKind); 290 expandGraphWithCheckers(C, Dst, Src); 291} 292 293void CheckerManager::runCheckersForEndAnalysis(ExplodedGraph &G, 294 BugReporter &BR, 295 ExprEngine &Eng) { 296 for (unsigned i = 0, e = EndAnalysisCheckers.size(); i != e; ++i) 297 EndAnalysisCheckers[i](G, BR, Eng); 298} 299 300/// \brief Run checkers for end of path. 301// Note, We do not chain the checker output (like in expandGraphWithCheckers) 302// for this callback since end of path nodes are expected to be final. 303void CheckerManager::runCheckersForEndPath(NodeBuilderContext &BC, 304 ExplodedNodeSet &Dst, 305 ExprEngine &Eng) { 306 ExplodedNode *Pred = BC.Pred; 307 308 // We define the builder outside of the loop bacause if at least one checkers 309 // creates a sucsessor for Pred, we do not need to generate an 310 // autotransition for it. 311 NodeBuilder Bldr(Pred, Dst, BC); 312 for (unsigned i = 0, e = EndPathCheckers.size(); i != e; ++i) { 313 CheckEndPathFunc checkFn = EndPathCheckers[i]; 314 315 const ProgramPoint &L = BlockEntrance(BC.Block, 316 Pred->getLocationContext(), 317 checkFn.Checker); 318 CheckerContext C(Bldr, Eng, Pred, L); 319 checkFn(C); 320 } 321} 322 323namespace { 324 struct CheckBranchConditionContext { 325 typedef std::vector<CheckerManager::CheckBranchConditionFunc> CheckersTy; 326 const CheckersTy &Checkers; 327 const Stmt *Condition; 328 ExprEngine &Eng; 329 330 CheckersTy::const_iterator checkers_begin() { return Checkers.begin(); } 331 CheckersTy::const_iterator checkers_end() { return Checkers.end(); } 332 333 CheckBranchConditionContext(const CheckersTy &checkers, 334 const Stmt *Cond, ExprEngine &eng) 335 : Checkers(checkers), Condition(Cond), Eng(eng) {} 336 337 void runChecker(CheckerManager::CheckBranchConditionFunc checkFn, 338 NodeBuilder &Bldr, ExplodedNode *Pred) { 339 ProgramPoint L = PostCondition(Condition, Pred->getLocationContext(), 340 checkFn.Checker); 341 CheckerContext C(Bldr, Eng, Pred, L); 342 checkFn(Condition, C); 343 } 344 }; 345} 346 347/// \brief Run checkers for branch condition. 348void CheckerManager::runCheckersForBranchCondition(const Stmt *Condition, 349 ExplodedNodeSet &Dst, 350 ExplodedNode *Pred, 351 ExprEngine &Eng) { 352 ExplodedNodeSet Src; 353 Src.insert(Pred); 354 CheckBranchConditionContext C(BranchConditionCheckers, Condition, Eng); 355 expandGraphWithCheckers(C, Dst, Src); 356} 357 358/// \brief Run checkers for live symbols. 359void CheckerManager::runCheckersForLiveSymbols(ProgramStateRef state, 360 SymbolReaper &SymReaper) { 361 for (unsigned i = 0, e = LiveSymbolsCheckers.size(); i != e; ++i) 362 LiveSymbolsCheckers[i](state, SymReaper); 363} 364 365namespace { 366 struct CheckDeadSymbolsContext { 367 typedef std::vector<CheckerManager::CheckDeadSymbolsFunc> CheckersTy; 368 const CheckersTy &Checkers; 369 SymbolReaper &SR; 370 const Stmt *S; 371 ExprEngine &Eng; 372 373 CheckersTy::const_iterator checkers_begin() { return Checkers.begin(); } 374 CheckersTy::const_iterator checkers_end() { return Checkers.end(); } 375 376 CheckDeadSymbolsContext(const CheckersTy &checkers, SymbolReaper &sr, 377 const Stmt *s, ExprEngine &eng) 378 : Checkers(checkers), SR(sr), S(s), Eng(eng) { } 379 380 void runChecker(CheckerManager::CheckDeadSymbolsFunc checkFn, 381 NodeBuilder &Bldr, ExplodedNode *Pred) { 382 ProgramPoint::Kind K = ProgramPoint::PostPurgeDeadSymbolsKind; 383 const ProgramPoint &L = ProgramPoint::getProgramPoint(S, K, 384 Pred->getLocationContext(), checkFn.Checker); 385 CheckerContext C(Bldr, Eng, Pred, L); 386 387 checkFn(SR, C); 388 } 389 }; 390} 391 392/// \brief Run checkers for dead symbols. 393void CheckerManager::runCheckersForDeadSymbols(ExplodedNodeSet &Dst, 394 const ExplodedNodeSet &Src, 395 SymbolReaper &SymReaper, 396 const Stmt *S, 397 ExprEngine &Eng) { 398 CheckDeadSymbolsContext C(DeadSymbolsCheckers, SymReaper, S, Eng); 399 expandGraphWithCheckers(C, Dst, Src); 400} 401 402/// \brief True if at least one checker wants to check region changes. 403bool CheckerManager::wantsRegionChangeUpdate(ProgramStateRef state) { 404 for (unsigned i = 0, e = RegionChangesCheckers.size(); i != e; ++i) 405 if (RegionChangesCheckers[i].WantUpdateFn(state)) 406 return true; 407 408 return false; 409} 410 411/// \brief Run checkers for region changes. 412ProgramStateRef 413CheckerManager::runCheckersForRegionChanges(ProgramStateRef state, 414 const StoreManager::InvalidatedSymbols *invalidated, 415 ArrayRef<const MemRegion *> ExplicitRegions, 416 ArrayRef<const MemRegion *> Regions) { 417 for (unsigned i = 0, e = RegionChangesCheckers.size(); i != e; ++i) { 418 // If any checker declares the state infeasible (or if it starts that way), 419 // bail out. 420 if (!state) 421 return NULL; 422 state = RegionChangesCheckers[i].CheckFn(state, invalidated, 423 ExplicitRegions, Regions); 424 } 425 return state; 426} 427 428/// \brief Run checkers for handling assumptions on symbolic values. 429ProgramStateRef 430CheckerManager::runCheckersForEvalAssume(ProgramStateRef state, 431 SVal Cond, bool Assumption) { 432 for (unsigned i = 0, e = EvalAssumeCheckers.size(); i != e; ++i) { 433 // If any checker declares the state infeasible (or if it starts that way), 434 // bail out. 435 if (!state) 436 return NULL; 437 state = EvalAssumeCheckers[i](state, Cond, Assumption); 438 } 439 return state; 440} 441 442/// \brief Run checkers for evaluating a call. 443/// Only one checker will evaluate the call. 444void CheckerManager::runCheckersForEvalCall(ExplodedNodeSet &Dst, 445 const ExplodedNodeSet &Src, 446 const CallExpr *CE, 447 ExprEngine &Eng, 448 GraphExpander *defaultEval) { 449 if (EvalCallCheckers.empty() && 450 InlineCallCheckers.empty() && 451 defaultEval == 0) { 452 Dst.insert(Src); 453 return; 454 } 455 456 for (ExplodedNodeSet::iterator 457 NI = Src.begin(), NE = Src.end(); NI != NE; ++NI) { 458 459 ExplodedNode *Pred = *NI; 460 bool anyEvaluated = false; 461 462 // First, check if any of the InlineCall callbacks can evaluate the call. 463 assert(InlineCallCheckers.size() <= 1 && 464 "InlineCall is a special hacky callback to allow intrusive" 465 "evaluation of the call (which simulates inlining). It is " 466 "currently only used by OSAtomicChecker and should go away " 467 "at some point."); 468 for (std::vector<InlineCallFunc>::iterator 469 EI = InlineCallCheckers.begin(), EE = InlineCallCheckers.end(); 470 EI != EE; ++EI) { 471 ExplodedNodeSet checkDst; 472 bool evaluated = (*EI)(CE, Eng, Pred, checkDst); 473 assert(!(evaluated && anyEvaluated) 474 && "There are more than one checkers evaluating the call"); 475 if (evaluated) { 476 anyEvaluated = true; 477 Dst.insert(checkDst); 478#ifdef NDEBUG 479 break; // on release don't check that no other checker also evals. 480#endif 481 } 482 } 483 484#ifdef NDEBUG // on release don't check that no other checker also evals. 485 if (anyEvaluated) { 486 break; 487 } 488#endif 489 490 ExplodedNodeSet checkDst; 491 NodeBuilder B(Pred, checkDst, Eng.getBuilderContext()); 492 // Next, check if any of the EvalCall callbacks can evaluate the call. 493 for (std::vector<EvalCallFunc>::iterator 494 EI = EvalCallCheckers.begin(), EE = EvalCallCheckers.end(); 495 EI != EE; ++EI) { 496 ProgramPoint::Kind K = ProgramPoint::PostStmtKind; 497 const ProgramPoint &L = ProgramPoint::getProgramPoint(CE, K, 498 Pred->getLocationContext(), EI->Checker); 499 bool evaluated = false; 500 { // CheckerContext generates transitions(populates checkDest) on 501 // destruction, so introduce the scope to make sure it gets properly 502 // populated. 503 CheckerContext C(B, Eng, Pred, L); 504 evaluated = (*EI)(CE, C); 505 } 506 assert(!(evaluated && anyEvaluated) 507 && "There are more than one checkers evaluating the call"); 508 if (evaluated) { 509 anyEvaluated = true; 510 Dst.insert(checkDst); 511#ifdef NDEBUG 512 break; // on release don't check that no other checker also evals. 513#endif 514 } 515 } 516 517 // If none of the checkers evaluated the call, ask ExprEngine to handle it. 518 if (!anyEvaluated) { 519 if (defaultEval) 520 defaultEval->expandGraph(Dst, Pred); 521 else 522 Dst.insert(Pred); 523 } 524 } 525} 526 527/// \brief Run checkers for the entire Translation Unit. 528void CheckerManager::runCheckersOnEndOfTranslationUnit( 529 const TranslationUnitDecl *TU, 530 AnalysisManager &mgr, 531 BugReporter &BR) { 532 for (unsigned i = 0, e = EndOfTranslationUnitCheckers.size(); i != e; ++i) 533 EndOfTranslationUnitCheckers[i](TU, mgr, BR); 534} 535 536void CheckerManager::runCheckersForPrintState(raw_ostream &Out, 537 ProgramStateRef State, 538 const char *NL, const char *Sep) { 539 for (llvm::DenseMap<CheckerTag, CheckerRef>::iterator 540 I = CheckerTags.begin(), E = CheckerTags.end(); I != E; ++I) 541 I->second->printState(Out, State, NL, Sep); 542} 543 544//===----------------------------------------------------------------------===// 545// Internal registration functions for AST traversing. 546//===----------------------------------------------------------------------===// 547 548void CheckerManager::_registerForDecl(CheckDeclFunc checkfn, 549 HandlesDeclFunc isForDeclFn) { 550 DeclCheckerInfo info = { checkfn, isForDeclFn }; 551 DeclCheckers.push_back(info); 552} 553 554void CheckerManager::_registerForBody(CheckDeclFunc checkfn) { 555 BodyCheckers.push_back(checkfn); 556} 557 558//===----------------------------------------------------------------------===// 559// Internal registration functions for path-sensitive checking. 560//===----------------------------------------------------------------------===// 561 562void CheckerManager::_registerForPreStmt(CheckStmtFunc checkfn, 563 HandlesStmtFunc isForStmtFn) { 564 StmtCheckerInfo info = { checkfn, isForStmtFn, /*IsPreVisit*/true }; 565 StmtCheckers.push_back(info); 566} 567void CheckerManager::_registerForPostStmt(CheckStmtFunc checkfn, 568 HandlesStmtFunc isForStmtFn) { 569 StmtCheckerInfo info = { checkfn, isForStmtFn, /*IsPreVisit*/false }; 570 StmtCheckers.push_back(info); 571} 572 573void CheckerManager::_registerForPreObjCMessage(CheckObjCMessageFunc checkfn) { 574 PreObjCMessageCheckers.push_back(checkfn); 575} 576void CheckerManager::_registerForPostObjCMessage(CheckObjCMessageFunc checkfn) { 577 PostObjCMessageCheckers.push_back(checkfn); 578} 579 580void CheckerManager::_registerForLocation(CheckLocationFunc checkfn) { 581 LocationCheckers.push_back(checkfn); 582} 583 584void CheckerManager::_registerForBind(CheckBindFunc checkfn) { 585 BindCheckers.push_back(checkfn); 586} 587 588void CheckerManager::_registerForEndAnalysis(CheckEndAnalysisFunc checkfn) { 589 EndAnalysisCheckers.push_back(checkfn); 590} 591 592void CheckerManager::_registerForEndPath(CheckEndPathFunc checkfn) { 593 EndPathCheckers.push_back(checkfn); 594} 595 596void CheckerManager::_registerForBranchCondition( 597 CheckBranchConditionFunc checkfn) { 598 BranchConditionCheckers.push_back(checkfn); 599} 600 601void CheckerManager::_registerForLiveSymbols(CheckLiveSymbolsFunc checkfn) { 602 LiveSymbolsCheckers.push_back(checkfn); 603} 604 605void CheckerManager::_registerForDeadSymbols(CheckDeadSymbolsFunc checkfn) { 606 DeadSymbolsCheckers.push_back(checkfn); 607} 608 609void CheckerManager::_registerForRegionChanges(CheckRegionChangesFunc checkfn, 610 WantsRegionChangeUpdateFunc wantUpdateFn) { 611 RegionChangesCheckerInfo info = {checkfn, wantUpdateFn}; 612 RegionChangesCheckers.push_back(info); 613} 614 615void CheckerManager::_registerForEvalAssume(EvalAssumeFunc checkfn) { 616 EvalAssumeCheckers.push_back(checkfn); 617} 618 619void CheckerManager::_registerForEvalCall(EvalCallFunc checkfn) { 620 EvalCallCheckers.push_back(checkfn); 621} 622 623void CheckerManager::_registerForInlineCall(InlineCallFunc checkfn) { 624 InlineCallCheckers.push_back(checkfn); 625} 626 627void CheckerManager::_registerForEndOfTranslationUnit( 628 CheckEndOfTranslationUnit checkfn) { 629 EndOfTranslationUnitCheckers.push_back(checkfn); 630} 631 632//===----------------------------------------------------------------------===// 633// Implementation details. 634//===----------------------------------------------------------------------===// 635 636CheckerManager::CachedStmtCheckers * 637CheckerManager::getCachedStmtCheckersFor(const Stmt *S, bool isPreVisit) { 638 assert(S); 639 640 CachedStmtCheckersKey key(S->getStmtClass(), isPreVisit); 641 CachedStmtCheckers *checkers = 0; 642 CachedStmtCheckersMapTy::iterator CCI = CachedStmtCheckersMap.find(key); 643 if (CCI != CachedStmtCheckersMap.end()) { 644 checkers = &(CCI->second); 645 } else { 646 // Find the checkers that should run for this Stmt and cache them. 647 checkers = &CachedStmtCheckersMap[key]; 648 for (unsigned i = 0, e = StmtCheckers.size(); i != e; ++i) { 649 StmtCheckerInfo &info = StmtCheckers[i]; 650 if (info.IsPreVisit == isPreVisit && info.IsForStmtFn(S)) 651 checkers->push_back(info.CheckFn); 652 } 653 } 654 655 assert(checkers); 656 return checkers; 657} 658 659CheckerManager::~CheckerManager() { 660 for (unsigned i = 0, e = CheckerDtors.size(); i != e; ++i) 661 CheckerDtors[i](); 662} 663 664// Anchor for the vtable. 665GraphExpander::~GraphExpander() { } 666