Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 1 | // BugReporter.cpp - Generate PathDiagnostics for Bugs ------------*- C++ -*--// |
| 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 | // This file defines BugReporter, a utility class for generating |
| 11 | // PathDiagnostics for analyses based on GRSimpleVals. |
| 12 | // |
| 13 | //===----------------------------------------------------------------------===// |
| 14 | |
| 15 | #include "clang/Analysis/PathSensitive/BugReporter.h" |
Ted Kremenek | 50a6d0c | 2008-04-09 21:41:14 +0000 | [diff] [blame] | 16 | #include "clang/Analysis/PathSensitive/GRExprEngine.h" |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 17 | #include "clang/Basic/SourceManager.h" |
| 18 | #include "clang/Basic/SourceLocation.h" |
| 19 | #include "clang/AST/ASTContext.h" |
| 20 | #include "clang/AST/CFG.h" |
| 21 | #include "clang/AST/Expr.h" |
| 22 | #include "clang/Analysis/ProgramPoint.h" |
| 23 | #include "clang/Analysis/PathDiagnostic.h" |
| 24 | #include <sstream> |
| 25 | |
| 26 | using namespace clang; |
| 27 | |
| 28 | BugReporter::~BugReporter() {} |
Ted Kremenek | 50a6d0c | 2008-04-09 21:41:14 +0000 | [diff] [blame] | 29 | BugType::~BugType() {} |
| 30 | BugReport::~BugReport() {} |
Ted Kremenek | 5e55cda | 2008-04-11 18:40:29 +0000 | [diff] [blame] | 31 | RangedBugReport::~RangedBugReport() {} |
| 32 | |
Ted Kremenek | 50a6d0c | 2008-04-09 21:41:14 +0000 | [diff] [blame] | 33 | ExplodedGraph<ValueState>& BugReporter::getGraph() { return Eng.getGraph(); } |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 34 | |
| 35 | static inline Stmt* GetStmt(const ProgramPoint& P) { |
| 36 | if (const PostStmt* PS = dyn_cast<PostStmt>(&P)) { |
| 37 | return PS->getStmt(); |
| 38 | } |
| 39 | else if (const BlockEdge* BE = dyn_cast<BlockEdge>(&P)) { |
| 40 | return BE->getSrc()->getTerminator(); |
| 41 | } |
| 42 | else if (const BlockEntrance* BE = dyn_cast<BlockEntrance>(&P)) { |
| 43 | return BE->getFirstStmt(); |
| 44 | } |
| 45 | |
| 46 | assert (false && "Unsupported ProgramPoint."); |
| 47 | return NULL; |
| 48 | } |
| 49 | |
Ted Kremenek | 706e3cf | 2008-04-07 23:35:17 +0000 | [diff] [blame] | 50 | static inline Stmt* GetStmt(const CFGBlock* B) { |
| 51 | assert (!B->empty()); |
| 52 | return (*B)[0]; |
| 53 | } |
| 54 | |
Ted Kremenek | d2f642b | 2008-04-14 17:39:48 +0000 | [diff] [blame] | 55 | Stmt* BugReport::getStmt() const { |
| 56 | return N ? GetStmt(N->getLocation()) : NULL; |
| 57 | } |
Ted Kremenek | bd7efa8 | 2008-04-17 23:44:37 +0000 | [diff] [blame] | 58 | |
| 59 | static inline ExplodedNode<ValueState>* |
| 60 | GetNextNode(ExplodedNode<ValueState>* N) { |
| 61 | return N->pred_empty() ? NULL : *(N->pred_begin()); |
| 62 | } |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 63 | |
Ted Kremenek | d2f642b | 2008-04-14 17:39:48 +0000 | [diff] [blame] | 64 | |
Ted Kremenek | bd7efa8 | 2008-04-17 23:44:37 +0000 | [diff] [blame] | 65 | static Stmt* GetLastStmt(ExplodedNode<ValueState>* N) { |
| 66 | assert (isa<BlockEntrance>(N->getLocation())); |
| 67 | |
| 68 | for (N = GetNextNode(N); N; N = GetNextNode(N)) { |
| 69 | |
| 70 | ProgramPoint P = N->getLocation(); |
| 71 | |
| 72 | if (PostStmt* PS = dyn_cast<PostStmt>(&P)) |
| 73 | return PS->getStmt(); |
| 74 | } |
| 75 | |
| 76 | return NULL; |
| 77 | } |
| 78 | |
| 79 | PathDiagnosticPiece* |
| 80 | BugReport::getEndPath(BugReporter& BR, |
| 81 | ExplodedNode<ValueState>* EndPathNode) const { |
| 82 | |
| 83 | ProgramPoint ProgP = EndPathNode->getLocation(); |
| 84 | Stmt *S = NULL; |
| 85 | |
| 86 | if (BlockEntrance* BE = dyn_cast<BlockEntrance>(&ProgP)) |
| 87 | if (BE->getBlock() == &BR.getCFG().getExit()) |
| 88 | S = GetLastStmt(EndPathNode); |
| 89 | if (!S) |
| 90 | S = GetStmt(ProgP); |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 91 | |
| 92 | if (!S) |
| 93 | return NULL; |
| 94 | |
Ted Kremenek | bd7efa8 | 2008-04-17 23:44:37 +0000 | [diff] [blame] | 95 | FullSourceLoc L(S->getLocStart(), BR.getContext().getSourceManager()); |
Ted Kremenek | 50a6d0c | 2008-04-09 21:41:14 +0000 | [diff] [blame] | 96 | |
| 97 | PathDiagnosticPiece* P = |
| 98 | new PathDiagnosticPiece(L, getDescription()); |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 99 | |
Ted Kremenek | de7161f | 2008-04-03 18:00:37 +0000 | [diff] [blame] | 100 | const SourceRange *Beg, *End; |
| 101 | getRanges(Beg, End); |
| 102 | |
| 103 | if (Beg == End) { |
| 104 | if (Expr* E = dyn_cast<Expr>(S)) |
| 105 | P->addRange(E->getSourceRange()); |
| 106 | } |
| 107 | else { |
| 108 | assert (Beg < End); |
| 109 | for (; Beg != End; ++Beg) |
| 110 | P->addRange(*Beg); |
| 111 | } |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 112 | |
| 113 | return P; |
| 114 | } |
| 115 | |
Ted Kremenek | 50a6d0c | 2008-04-09 21:41:14 +0000 | [diff] [blame] | 116 | void BugReport::getRanges(const SourceRange*& beg, |
Ted Kremenek | d2f642b | 2008-04-14 17:39:48 +0000 | [diff] [blame] | 117 | const SourceRange*& end) const { |
Ted Kremenek | f1ae705 | 2008-04-03 17:57:38 +0000 | [diff] [blame] | 118 | beg = NULL; |
| 119 | end = NULL; |
| 120 | } |
| 121 | |
Ted Kremenek | d2f642b | 2008-04-14 17:39:48 +0000 | [diff] [blame] | 122 | FullSourceLoc BugReport::getLocation(SourceManager& Mgr) { |
| 123 | |
| 124 | if (!N) |
| 125 | return FullSourceLoc(); |
| 126 | |
| 127 | Stmt* S = GetStmt(N->getLocation()); |
| 128 | |
| 129 | if (!S) |
| 130 | return FullSourceLoc(); |
| 131 | |
| 132 | return FullSourceLoc(S->getLocStart(), Mgr); |
| 133 | } |
| 134 | |
Ted Kremenek | 50a6d0c | 2008-04-09 21:41:14 +0000 | [diff] [blame] | 135 | PathDiagnosticPiece* BugReport::VisitNode(ExplodedNode<ValueState>* N, |
| 136 | ExplodedNode<ValueState>* PrevN, |
| 137 | ExplodedGraph<ValueState>& G, |
| 138 | ASTContext& Ctx) { |
| 139 | return NULL; |
| 140 | } |
| 141 | |
| 142 | void BugReporter::GeneratePathDiagnostic(PathDiagnostic& PD, |
Ted Kremenek | d2f642b | 2008-04-14 17:39:48 +0000 | [diff] [blame] | 143 | BugReport& R) { |
Ted Kremenek | 50a6d0c | 2008-04-09 21:41:14 +0000 | [diff] [blame] | 144 | |
Ted Kremenek | 75840e1 | 2008-04-18 01:56:37 +0000 | [diff] [blame] | 145 | ExplodedNode<ValueState>* N = R.getEndNode(); |
| 146 | |
| 147 | if (!N) |
| 148 | return; |
Ted Kremenek | d2f642b | 2008-04-14 17:39:48 +0000 | [diff] [blame] | 149 | |
Ted Kremenek | 50a6d0c | 2008-04-09 21:41:14 +0000 | [diff] [blame] | 150 | llvm::OwningPtr<ExplodedGraph<ValueState> > GTrim(getGraph().Trim(&N, &N+1)); |
Ted Kremenek | bd7efa8 | 2008-04-17 23:44:37 +0000 | [diff] [blame] | 151 | |
Ted Kremenek | 94826a7 | 2008-04-03 04:59:14 +0000 | [diff] [blame] | 152 | // Find the sink in the trimmed graph. |
| 153 | // FIXME: Should we eventually have a sink iterator? |
| 154 | |
| 155 | ExplodedNode<ValueState>* NewN = 0; |
| 156 | |
Ted Kremenek | 50a6d0c | 2008-04-09 21:41:14 +0000 | [diff] [blame] | 157 | for (ExplodedGraph<ValueState>::node_iterator |
Ted Kremenek | bd7efa8 | 2008-04-17 23:44:37 +0000 | [diff] [blame] | 158 | I = GTrim->nodes_begin(), E = GTrim->nodes_end(); I != E; ++I) { |
Ted Kremenek | 94826a7 | 2008-04-03 04:59:14 +0000 | [diff] [blame] | 159 | |
| 160 | if (I->isSink()) { |
| 161 | NewN = &*I; |
| 162 | break; |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | assert (NewN); |
| 167 | assert (NewN->getLocation() == N->getLocation()); |
| 168 | |
| 169 | N = NewN; |
Ted Kremenek | bd7efa8 | 2008-04-17 23:44:37 +0000 | [diff] [blame] | 170 | |
| 171 | if (PathDiagnosticPiece* Piece = R.getEndPath(*this, N)) |
| 172 | PD.push_back(Piece); |
| 173 | else |
| 174 | return; |
Ted Kremenek | 6837faa | 2008-04-09 00:20:43 +0000 | [diff] [blame] | 175 | |
| 176 | ExplodedNode<ValueState>* NextNode = N->pred_empty() |
| 177 | ? NULL : *(N->pred_begin()); |
| 178 | |
Ted Kremenek | bd7efa8 | 2008-04-17 23:44:37 +0000 | [diff] [blame] | 179 | SourceManager& SMgr = Ctx.getSourceManager(); |
| 180 | |
Ted Kremenek | 6837faa | 2008-04-09 00:20:43 +0000 | [diff] [blame] | 181 | while (NextNode) { |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 182 | |
| 183 | ExplodedNode<ValueState>* LastNode = N; |
Ted Kremenek | 6837faa | 2008-04-09 00:20:43 +0000 | [diff] [blame] | 184 | N = NextNode; |
Ted Kremenek | bd7efa8 | 2008-04-17 23:44:37 +0000 | [diff] [blame] | 185 | NextNode = GetNextNode(N); |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 186 | |
| 187 | ProgramPoint P = N->getLocation(); |
| 188 | |
| 189 | if (const BlockEdge* BE = dyn_cast<BlockEdge>(&P)) { |
| 190 | |
| 191 | CFGBlock* Src = BE->getSrc(); |
| 192 | CFGBlock* Dst = BE->getDst(); |
| 193 | |
| 194 | Stmt* T = Src->getTerminator(); |
| 195 | |
| 196 | if (!T) |
| 197 | continue; |
| 198 | |
| 199 | FullSourceLoc L(T->getLocStart(), SMgr); |
| 200 | |
| 201 | switch (T->getStmtClass()) { |
| 202 | default: |
| 203 | break; |
| 204 | |
| 205 | case Stmt::GotoStmtClass: |
| 206 | case Stmt::IndirectGotoStmtClass: { |
| 207 | |
| 208 | Stmt* S = GetStmt(LastNode->getLocation()); |
| 209 | |
| 210 | if (!S) |
| 211 | continue; |
| 212 | |
| 213 | std::ostringstream os; |
| 214 | |
| 215 | os << "Control jumps to line " |
Ted Kremenek | 706e3cf | 2008-04-07 23:35:17 +0000 | [diff] [blame] | 216 | << SMgr.getLogicalLineNumber(S->getLocStart()) << ".\n"; |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 217 | |
| 218 | PD.push_front(new PathDiagnosticPiece(L, os.str())); |
| 219 | break; |
| 220 | } |
| 221 | |
| 222 | case Stmt::SwitchStmtClass: { |
| 223 | |
| 224 | // Figure out what case arm we took. |
| 225 | |
| 226 | Stmt* S = Dst->getLabel(); |
| 227 | |
| 228 | if (!S) |
| 229 | continue; |
| 230 | |
| 231 | std::ostringstream os; |
| 232 | |
| 233 | switch (S->getStmtClass()) { |
| 234 | default: |
| 235 | continue; |
| 236 | |
| 237 | case Stmt::DefaultStmtClass: { |
| 238 | |
| 239 | os << "Control jumps to the 'default' case at line " |
Ted Kremenek | 6837faa | 2008-04-09 00:20:43 +0000 | [diff] [blame] | 240 | << SMgr.getLogicalLineNumber(S->getLocStart()) << ".\n"; |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 241 | |
| 242 | break; |
| 243 | } |
| 244 | |
| 245 | case Stmt::CaseStmtClass: { |
| 246 | |
| 247 | os << "Control jumps to 'case "; |
| 248 | |
| 249 | Expr* CondE = cast<SwitchStmt>(T)->getCond(); |
| 250 | unsigned bits = Ctx.getTypeSize(CondE->getType()); |
| 251 | |
| 252 | llvm::APSInt V1(bits, false); |
| 253 | |
| 254 | CaseStmt* Case = cast<CaseStmt>(S); |
| 255 | |
| 256 | if (!Case->getLHS()->isIntegerConstantExpr(V1, Ctx, 0, true)) { |
| 257 | assert (false && |
| 258 | "Case condition must evaluate to an integer constant."); |
| 259 | continue; |
| 260 | } |
| 261 | |
| 262 | os << V1.toString(); |
| 263 | |
| 264 | // Get the RHS of the case, if it exists. |
| 265 | |
| 266 | if (Expr* E = Case->getRHS()) { |
| 267 | |
| 268 | llvm::APSInt V2(bits, false); |
| 269 | |
| 270 | if (!E->isIntegerConstantExpr(V2, Ctx, 0, true)) { |
| 271 | assert (false && |
| 272 | "Case condition (RHS) must evaluate to an integer constant."); |
| 273 | continue; |
| 274 | } |
| 275 | |
| 276 | os << " .. " << V2.toString(); |
| 277 | } |
| 278 | |
| 279 | os << ":' at line " |
Ted Kremenek | 706e3cf | 2008-04-07 23:35:17 +0000 | [diff] [blame] | 280 | << SMgr.getLogicalLineNumber(S->getLocStart()) << ".\n"; |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 281 | |
| 282 | break; |
| 283 | |
| 284 | } |
| 285 | } |
| 286 | |
| 287 | PD.push_front(new PathDiagnosticPiece(L, os.str())); |
| 288 | break; |
| 289 | } |
Ted Kremenek | 706e3cf | 2008-04-07 23:35:17 +0000 | [diff] [blame] | 290 | |
| 291 | case Stmt::ConditionalOperatorClass: { |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 292 | |
Ted Kremenek | 706e3cf | 2008-04-07 23:35:17 +0000 | [diff] [blame] | 293 | std::ostringstream os; |
| 294 | os << "'?' condition evaluates to "; |
| 295 | |
| 296 | if (*(Src->succ_begin()+1) == Dst) |
| 297 | os << "false."; |
| 298 | else |
| 299 | os << "true."; |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 300 | |
Ted Kremenek | 706e3cf | 2008-04-07 23:35:17 +0000 | [diff] [blame] | 301 | PD.push_front(new PathDiagnosticPiece(L, os.str())); |
| 302 | |
| 303 | break; |
| 304 | } |
| 305 | |
| 306 | case Stmt::DoStmtClass: { |
| 307 | |
| 308 | if (*(Src->succ_begin()) == Dst) { |
| 309 | |
| 310 | std::ostringstream os; |
| 311 | |
| 312 | os << "Loop condition is true. Execution continues on line " |
| 313 | << SMgr.getLogicalLineNumber(GetStmt(Dst)->getLocStart()) << '.'; |
| 314 | |
| 315 | PD.push_front(new PathDiagnosticPiece(L, os.str())); |
| 316 | } |
| 317 | else |
| 318 | PD.push_front(new PathDiagnosticPiece(L, |
| 319 | "Loop condition is false. Exiting loop.")); |
| 320 | |
| 321 | break; |
| 322 | } |
| 323 | |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 324 | case Stmt::WhileStmtClass: |
Ted Kremenek | 706e3cf | 2008-04-07 23:35:17 +0000 | [diff] [blame] | 325 | case Stmt::ForStmtClass: { |
| 326 | |
| 327 | if (*(Src->succ_begin()+1) == Dst) { |
| 328 | |
| 329 | std::ostringstream os; |
| 330 | |
| 331 | os << "Loop condition is false. Execution continues on line " |
| 332 | << SMgr.getLogicalLineNumber(GetStmt(Dst)->getLocStart()) << '.'; |
| 333 | |
| 334 | PD.push_front(new PathDiagnosticPiece(L, os.str())); |
| 335 | } |
| 336 | else |
| 337 | PD.push_front(new PathDiagnosticPiece(L, |
| 338 | "Loop condition is true. Entering loop body.")); |
| 339 | |
| 340 | break; |
| 341 | } |
| 342 | |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 343 | case Stmt::IfStmtClass: { |
| 344 | |
| 345 | if (*(Src->succ_begin()+1) == Dst) |
| 346 | PD.push_front(new PathDiagnosticPiece(L, "Taking false branch.")); |
| 347 | else |
| 348 | PD.push_front(new PathDiagnosticPiece(L, "Taking true branch.")); |
| 349 | |
| 350 | break; |
| 351 | } |
| 352 | } |
Ted Kremenek | 6837faa | 2008-04-09 00:20:43 +0000 | [diff] [blame] | 353 | } |
| 354 | else |
Ted Kremenek | 50a6d0c | 2008-04-09 21:41:14 +0000 | [diff] [blame] | 355 | if (PathDiagnosticPiece* piece = R.VisitNode(N, NextNode, *GTrim, Ctx)) |
| 356 | PD.push_front(piece); |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 357 | } |
| 358 | } |
| 359 | |
| 360 | bool BugReporter::IsCached(ExplodedNode<ValueState>* N) { |
| 361 | |
Ted Kremenek | 329d2cc | 2008-04-18 02:24:50 +0000 | [diff] [blame^] | 362 | if (!N) |
| 363 | return false; |
| 364 | |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 365 | // HACK: Cache the location of the error. Don't emit the same |
| 366 | // warning for the same error type that occurs at the same program |
| 367 | // location but along a different path. |
| 368 | |
| 369 | void* p = N->getLocation().getRawData(); |
| 370 | |
| 371 | if (CachedErrors.count(p)) |
| 372 | return true; |
| 373 | |
| 374 | CachedErrors.insert(p); |
| 375 | |
| 376 | return false; |
| 377 | } |
| 378 | |
Ted Kremenek | 75840e1 | 2008-04-18 01:56:37 +0000 | [diff] [blame] | 379 | void BugReporter::EmitWarning(BugReport& R) { |
| 380 | |
| 381 | if (IsCached(R.getEndNode())) |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 382 | return; |
Ted Kremenek | 75840e1 | 2008-04-18 01:56:37 +0000 | [diff] [blame] | 383 | |
Ted Kremenek | 50a6d0c | 2008-04-09 21:41:14 +0000 | [diff] [blame] | 384 | PathDiagnostic D(R.getName()); |
Ted Kremenek | d2f642b | 2008-04-14 17:39:48 +0000 | [diff] [blame] | 385 | GeneratePathDiagnostic(D, R); |
Ted Kremenek | 75840e1 | 2008-04-18 01:56:37 +0000 | [diff] [blame] | 386 | |
| 387 | // Emit a full diagnostic for the path if we have a PathDiagnosticClient. |
Ted Kremenek | 70d1722 | 2008-04-03 07:33:55 +0000 | [diff] [blame] | 388 | |
Ted Kremenek | 75840e1 | 2008-04-18 01:56:37 +0000 | [diff] [blame] | 389 | if (PD && !D.empty()) { |
Ted Kremenek | 50a6d0c | 2008-04-09 21:41:14 +0000 | [diff] [blame] | 390 | PD->HandlePathDiagnostic(D); |
Ted Kremenek | 75840e1 | 2008-04-18 01:56:37 +0000 | [diff] [blame] | 391 | return; |
| 392 | } |
Ted Kremenek | d2f642b | 2008-04-14 17:39:48 +0000 | [diff] [blame] | 393 | |
Ted Kremenek | 75840e1 | 2008-04-18 01:56:37 +0000 | [diff] [blame] | 394 | // We don't have a PathDiagnosticClient, but we can still emit a single |
| 395 | // line diagnostic. Determine the location. |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 396 | |
Ted Kremenek | 75840e1 | 2008-04-18 01:56:37 +0000 | [diff] [blame] | 397 | FullSourceLoc L = D.empty() ? R.getLocation(Ctx.getSourceManager()) |
| 398 | : D.back()->getLocation(); |
| 399 | |
| 400 | |
| 401 | // Determine the range. |
Ted Kremenek | 5fcca68 | 2008-04-14 18:06:42 +0000 | [diff] [blame] | 402 | |
Ted Kremenek | 4bb6ac2 | 2008-04-10 16:12:38 +0000 | [diff] [blame] | 403 | const SourceRange *Beg, *End; |
Ted Kremenek | 5fcca68 | 2008-04-14 18:06:42 +0000 | [diff] [blame] | 404 | |
Ted Kremenek | 75840e1 | 2008-04-18 01:56:37 +0000 | [diff] [blame] | 405 | if (!D.empty()) { |
| 406 | Beg = D.back()->ranges_begin(); |
| 407 | End = D.back()->ranges_end(); |
| 408 | } |
| 409 | else |
| 410 | R.getRanges(Beg, End); |
| 411 | |
| 412 | // Compute the message. |
Ted Kremenek | 5fcca68 | 2008-04-14 18:06:42 +0000 | [diff] [blame] | 413 | |
Ted Kremenek | 75840e1 | 2008-04-18 01:56:37 +0000 | [diff] [blame] | 414 | std::ostringstream os; |
| 415 | os << "[CHECKER] "; |
| 416 | |
| 417 | if (D.empty()) |
| 418 | os << R.getDescription(); |
| 419 | else |
| 420 | os << D.back()->getString(); |
| 421 | |
| 422 | unsigned ErrorDiag = Diag.getCustomDiagID(Diagnostic::Warning, |
| 423 | os.str().c_str()); |
| 424 | |
| 425 | Diag.Report(L, ErrorDiag, NULL, 0, Beg, End - Beg); |
Ted Kremenek | 61f3e05 | 2008-04-03 04:42:52 +0000 | [diff] [blame] | 426 | } |