1 //===--- Stmt.cpp - Statement AST Node Implementation ---------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the Stmt class and statement subclasses.
12 //===----------------------------------------------------------------------===//
14 #include "clang/AST/Stmt.h"
15 #include "clang/AST/ExprCXX.h"
16 #include "clang/AST/ExprObjC.h"
17 #include "clang/AST/StmtCXX.h"
18 #include "clang/AST/StmtObjC.h"
19 #include "clang/AST/Type.h"
20 #include "clang/AST/ASTContext.h"
21 #include "clang/AST/ASTDiagnostic.h"
22 #include "clang/Basic/TargetInfo.h"
23 #include "llvm/Support/raw_ostream.h"
24 using namespace clang;
26 static struct StmtClassNameTable {
30 } StmtClassInfo[Stmt::lastStmtConstant+1];
32 static StmtClassNameTable &getStmtInfoTableEntry(Stmt::StmtClass E) {
33 static bool Initialized = false;
35 return StmtClassInfo[E];
37 // Intialize the table on the first use.
39 #define ABSTRACT_STMT(STMT)
40 #define STMT(CLASS, PARENT) \
41 StmtClassInfo[(unsigned)Stmt::CLASS##Class].Name = #CLASS; \
42 StmtClassInfo[(unsigned)Stmt::CLASS##Class].Size = sizeof(CLASS);
43 #include "clang/AST/StmtNodes.inc"
45 return StmtClassInfo[E];
48 const char *Stmt::getStmtClassName() const {
49 return getStmtInfoTableEntry((StmtClass) StmtBits.sClass).Name;
52 void Stmt::PrintStats() {
53 // Ensure the table is primed.
54 getStmtInfoTableEntry(Stmt::NullStmtClass);
57 llvm::errs() << "\n*** Stmt/Expr Stats:\n";
58 for (int i = 0; i != Stmt::lastStmtConstant+1; i++) {
59 if (StmtClassInfo[i].Name == 0) continue;
60 sum += StmtClassInfo[i].Counter;
62 llvm::errs() << " " << sum << " stmts/exprs total.\n";
64 for (int i = 0; i != Stmt::lastStmtConstant+1; i++) {
65 if (StmtClassInfo[i].Name == 0) continue;
66 if (StmtClassInfo[i].Counter == 0) continue;
67 llvm::errs() << " " << StmtClassInfo[i].Counter << " "
68 << StmtClassInfo[i].Name << ", " << StmtClassInfo[i].Size
69 << " each (" << StmtClassInfo[i].Counter*StmtClassInfo[i].Size
71 sum += StmtClassInfo[i].Counter*StmtClassInfo[i].Size;
74 llvm::errs() << "Total bytes = " << sum << "\n";
77 void Stmt::addStmtClass(StmtClass s) {
78 ++getStmtInfoTableEntry(s).Counter;
81 bool Stmt::StatisticsEnabled = false;
82 void Stmt::EnableStatistics() {
83 StatisticsEnabled = true;
86 Stmt *Stmt::IgnoreImplicit() {
89 if (ExprWithCleanups *ewc = dyn_cast<ExprWithCleanups>(s))
90 s = ewc->getSubExpr();
92 while (ImplicitCastExpr *ice = dyn_cast<ImplicitCastExpr>(s))
93 s = ice->getSubExpr();
98 /// \brief Strip off all label-like statements.
100 /// This will strip off label statements, case statements, attributed
101 /// statements and default statements recursively.
102 const Stmt *Stmt::stripLabelLikeStatements() const {
103 const Stmt *S = this;
105 if (const LabelStmt *LS = dyn_cast<LabelStmt>(S))
106 S = LS->getSubStmt();
107 else if (const SwitchCase *SC = dyn_cast<SwitchCase>(S))
108 S = SC->getSubStmt();
109 else if (const AttributedStmt *AS = dyn_cast<AttributedStmt>(S))
110 S = AS->getSubStmt();
120 // These silly little functions have to be static inline to suppress
121 // unused warnings, and they have to be defined to suppress other
123 static inline good is_good(good) { return good(); }
125 typedef Stmt::child_range children_t();
126 template <class T> good implements_children(children_t T::*) {
129 static inline bad implements_children(children_t Stmt::*) {
133 typedef SourceRange getSourceRange_t() const;
134 template <class T> good implements_getSourceRange(getSourceRange_t T::*) {
137 static inline bad implements_getSourceRange(getSourceRange_t Stmt::*) {
141 #define ASSERT_IMPLEMENTS_children(type) \
142 (void) sizeof(is_good(implements_children(&type::children)))
143 #define ASSERT_IMPLEMENTS_getSourceRange(type) \
144 (void) sizeof(is_good(implements_getSourceRange(&type::getSourceRange)))
147 /// Check whether the various Stmt classes implement their member
149 static inline void check_implementations() {
150 #define ABSTRACT_STMT(type)
151 #define STMT(type, base) \
152 ASSERT_IMPLEMENTS_children(type); \
153 ASSERT_IMPLEMENTS_getSourceRange(type);
154 #include "clang/AST/StmtNodes.inc"
157 Stmt::child_range Stmt::children() {
158 switch (getStmtClass()) {
159 case Stmt::NoStmtClass: llvm_unreachable("statement without class");
160 #define ABSTRACT_STMT(type)
161 #define STMT(type, base) \
162 case Stmt::type##Class: \
163 return static_cast<type*>(this)->children();
164 #include "clang/AST/StmtNodes.inc"
166 llvm_unreachable("unknown statement kind!");
169 SourceRange Stmt::getSourceRange() const {
170 switch (getStmtClass()) {
171 case Stmt::NoStmtClass: llvm_unreachable("statement without class");
172 #define ABSTRACT_STMT(type)
173 #define STMT(type, base) \
174 case Stmt::type##Class: \
175 return static_cast<const type*>(this)->getSourceRange();
176 #include "clang/AST/StmtNodes.inc"
178 llvm_unreachable("unknown statement kind!");
181 // Amusing macro metaprogramming hack: check whether a class provides
182 // a more specific implementation of getLocStart() and getLocEnd().
184 // See also Expr.cpp:getExprLoc().
186 /// This implementation is used when a class provides a custom
187 /// implementation of getLocStart.
188 template <class S, class T>
189 SourceLocation getLocStartImpl(const Stmt *stmt,
190 SourceLocation (T::*v)() const) {
191 return static_cast<const S*>(stmt)->getLocStart();
194 /// This implementation is used when a class doesn't provide a custom
195 /// implementation of getLocStart. Overload resolution should pick it over
196 /// the implementation above because it's more specialized according to
197 /// function template partial ordering.
199 SourceLocation getLocStartImpl(const Stmt *stmt,
200 SourceLocation (Stmt::*v)() const) {
201 return static_cast<const S*>(stmt)->getSourceRange().getBegin();
204 /// This implementation is used when a class provides a custom
205 /// implementation of getLocEnd.
206 template <class S, class T>
207 SourceLocation getLocEndImpl(const Stmt *stmt,
208 SourceLocation (T::*v)() const) {
209 return static_cast<const S*>(stmt)->getLocEnd();
212 /// This implementation is used when a class doesn't provide a custom
213 /// implementation of getLocEnd. Overload resolution should pick it over
214 /// the implementation above because it's more specialized according to
215 /// function template partial ordering.
217 SourceLocation getLocEndImpl(const Stmt *stmt,
218 SourceLocation (Stmt::*v)() const) {
219 return static_cast<const S*>(stmt)->getSourceRange().getEnd();
223 SourceLocation Stmt::getLocStart() const {
224 switch (getStmtClass()) {
225 case Stmt::NoStmtClass: llvm_unreachable("statement without class");
226 #define ABSTRACT_STMT(type)
227 #define STMT(type, base) \
228 case Stmt::type##Class: \
229 return getLocStartImpl<type>(this, &type::getLocStart);
230 #include "clang/AST/StmtNodes.inc"
232 llvm_unreachable("unknown statement kind");
235 SourceLocation Stmt::getLocEnd() const {
236 switch (getStmtClass()) {
237 case Stmt::NoStmtClass: llvm_unreachable("statement without class");
238 #define ABSTRACT_STMT(type)
239 #define STMT(type, base) \
240 case Stmt::type##Class: \
241 return getLocEndImpl<type>(this, &type::getLocEnd);
242 #include "clang/AST/StmtNodes.inc"
244 llvm_unreachable("unknown statement kind");
247 void CompoundStmt::setStmts(ASTContext &C, Stmt **Stmts, unsigned NumStmts) {
250 this->CompoundStmtBits.NumStmts = NumStmts;
252 Body = new (C) Stmt*[NumStmts];
253 memcpy(Body, Stmts, sizeof(Stmt *) * NumStmts);
256 const char *LabelStmt::getName() const {
257 return getDecl()->getIdentifier()->getNameStart();
260 // This is defined here to avoid polluting Stmt.h with importing Expr.h
261 SourceRange ReturnStmt::getSourceRange() const {
263 return SourceRange(RetLoc, RetExpr->getLocEnd());
265 return SourceRange(RetLoc);
268 bool Stmt::hasImplicitControlFlow() const {
269 switch (StmtBits.sClass) {
274 case ConditionalOperatorClass:
275 case ChooseExprClass:
280 case Stmt::BinaryOperatorClass: {
281 const BinaryOperator* B = cast<BinaryOperator>(this);
282 if (B->isLogicalOp() || B->getOpcode() == BO_Comma)
290 Expr *AsmStmt::getOutputExpr(unsigned i) {
291 return cast<Expr>(Exprs[i]);
294 /// getOutputConstraint - Return the constraint string for the specified
295 /// output operand. All output constraints are known to be non-empty (either
297 StringRef AsmStmt::getOutputConstraint(unsigned i) const {
298 return getOutputConstraintLiteral(i)->getString();
301 /// getNumPlusOperands - Return the number of output operands that have a "+"
303 unsigned AsmStmt::getNumPlusOperands() const {
305 for (unsigned i = 0, e = getNumOutputs(); i != e; ++i)
306 if (isOutputPlusConstraint(i))
311 Expr *AsmStmt::getInputExpr(unsigned i) {
312 return cast<Expr>(Exprs[i + NumOutputs]);
314 void AsmStmt::setInputExpr(unsigned i, Expr *E) {
315 Exprs[i + NumOutputs] = E;
319 /// getInputConstraint - Return the specified input constraint. Unlike output
320 /// constraints, these can be empty.
321 StringRef AsmStmt::getInputConstraint(unsigned i) const {
322 return getInputConstraintLiteral(i)->getString();
326 void AsmStmt::setOutputsAndInputsAndClobbers(ASTContext &C,
327 IdentifierInfo **Names,
328 StringLiteral **Constraints,
332 StringLiteral **Clobbers,
333 unsigned NumClobbers) {
334 this->NumOutputs = NumOutputs;
335 this->NumInputs = NumInputs;
336 this->NumClobbers = NumClobbers;
338 unsigned NumExprs = NumOutputs + NumInputs;
340 C.Deallocate(this->Names);
341 this->Names = new (C) IdentifierInfo*[NumExprs];
342 std::copy(Names, Names + NumExprs, this->Names);
344 C.Deallocate(this->Exprs);
345 this->Exprs = new (C) Stmt*[NumExprs];
346 std::copy(Exprs, Exprs + NumExprs, this->Exprs);
348 C.Deallocate(this->Constraints);
349 this->Constraints = new (C) StringLiteral*[NumExprs];
350 std::copy(Constraints, Constraints + NumExprs, this->Constraints);
352 C.Deallocate(this->Clobbers);
353 this->Clobbers = new (C) StringLiteral*[NumClobbers];
354 std::copy(Clobbers, Clobbers + NumClobbers, this->Clobbers);
357 /// getNamedOperand - Given a symbolic operand reference like %[foo],
358 /// translate this into a numeric value needed to reference the same operand.
359 /// This returns -1 if the operand name is invalid.
360 int AsmStmt::getNamedOperand(StringRef SymbolicName) const {
361 unsigned NumPlusOperands = 0;
363 // Check if this is an output operand.
364 for (unsigned i = 0, e = getNumOutputs(); i != e; ++i) {
365 if (getOutputName(i) == SymbolicName)
369 for (unsigned i = 0, e = getNumInputs(); i != e; ++i)
370 if (getInputName(i) == SymbolicName)
371 return getNumOutputs() + NumPlusOperands + i;
377 /// AnalyzeAsmString - Analyze the asm string of the current asm, decomposing
378 /// it into pieces. If the asm string is erroneous, emit errors and return
379 /// true, otherwise return false.
380 unsigned AsmStmt::AnalyzeAsmString(SmallVectorImpl<AsmStringPiece>&Pieces,
381 ASTContext &C, unsigned &DiagOffs) const {
382 StringRef Str = getAsmString()->getString();
383 const char *StrStart = Str.begin();
384 const char *StrEnd = Str.end();
385 const char *CurPtr = StrStart;
387 // "Simple" inline asms have no constraints or operands, just convert the asm
388 // string to escape $'s.
391 for (; CurPtr != StrEnd; ++CurPtr) {
401 Pieces.push_back(AsmStringPiece(Result));
405 // CurStringPiece - The current string that we are building up as we scan the
407 std::string CurStringPiece;
409 bool HasVariants = !C.getTargetInfo().hasNoAsmVariants();
412 // Done with the string?
413 if (CurPtr == StrEnd) {
414 if (!CurStringPiece.empty())
415 Pieces.push_back(AsmStringPiece(CurStringPiece));
419 char CurChar = *CurPtr++;
421 case '$': CurStringPiece += "$$"; continue;
422 case '{': CurStringPiece += (HasVariants ? "$(" : "{"); continue;
423 case '|': CurStringPiece += (HasVariants ? "$|" : "|"); continue;
424 case '}': CurStringPiece += (HasVariants ? "$)" : "}"); continue;
428 CurStringPiece += CurChar;
432 // Escaped "%" character in asm string.
433 if (CurPtr == StrEnd) {
434 // % at end of string is invalid (no escape).
435 DiagOffs = CurPtr-StrStart-1;
436 return diag::err_asm_invalid_escape;
439 char EscapedChar = *CurPtr++;
440 if (EscapedChar == '%') { // %% -> %
441 // Escaped percentage sign.
442 CurStringPiece += '%';
446 if (EscapedChar == '=') { // %= -> Generate an unique ID.
447 CurStringPiece += "${:uid}";
451 // Otherwise, we have an operand. If we have accumulated a string so far,
452 // add it to the Pieces list.
453 if (!CurStringPiece.empty()) {
454 Pieces.push_back(AsmStringPiece(CurStringPiece));
455 CurStringPiece.clear();
458 // Handle %x4 and %x[foo] by capturing x as the modifier character.
459 char Modifier = '\0';
460 if (isalpha(EscapedChar)) {
461 if (CurPtr == StrEnd) { // Premature end.
462 DiagOffs = CurPtr-StrStart-1;
463 return diag::err_asm_invalid_escape;
465 Modifier = EscapedChar;
466 EscapedChar = *CurPtr++;
469 if (isdigit(EscapedChar)) {
470 // %n - Assembler operand n
474 while (CurPtr != StrEnd && isdigit(*CurPtr))
475 N = N*10 + ((*CurPtr++)-'0');
477 unsigned NumOperands =
478 getNumOutputs() + getNumPlusOperands() + getNumInputs();
479 if (N >= NumOperands) {
480 DiagOffs = CurPtr-StrStart-1;
481 return diag::err_asm_invalid_operand_number;
484 Pieces.push_back(AsmStringPiece(N, Modifier));
488 // Handle %[foo], a symbolic operand reference.
489 if (EscapedChar == '[') {
490 DiagOffs = CurPtr-StrStart-1;
493 const char *NameEnd = (const char*)memchr(CurPtr, ']', StrEnd-CurPtr);
495 return diag::err_asm_unterminated_symbolic_operand_name;
496 if (NameEnd == CurPtr)
497 return diag::err_asm_empty_symbolic_operand_name;
499 StringRef SymbolicName(CurPtr, NameEnd - CurPtr);
501 int N = getNamedOperand(SymbolicName);
503 // Verify that an operand with that name exists.
504 DiagOffs = CurPtr-StrStart;
505 return diag::err_asm_unknown_symbolic_operand_name;
507 Pieces.push_back(AsmStringPiece(N, Modifier));
513 DiagOffs = CurPtr-StrStart-1;
514 return diag::err_asm_invalid_escape;
518 QualType CXXCatchStmt::getCaughtType() const {
520 return ExceptionDecl->getType();
524 //===----------------------------------------------------------------------===//
526 //===----------------------------------------------------------------------===//
528 AsmStmt::AsmStmt(ASTContext &C, SourceLocation asmloc, bool issimple,
529 bool isvolatile, bool msasm,
530 unsigned numoutputs, unsigned numinputs,
531 IdentifierInfo **names, StringLiteral **constraints,
532 Expr **exprs, StringLiteral *asmstr, unsigned numclobbers,
533 StringLiteral **clobbers, SourceLocation rparenloc)
534 : Stmt(AsmStmtClass), AsmLoc(asmloc), RParenLoc(rparenloc), AsmStr(asmstr)
535 , IsSimple(issimple), IsVolatile(isvolatile), MSAsm(msasm)
536 , NumOutputs(numoutputs), NumInputs(numinputs), NumClobbers(numclobbers) {
538 unsigned NumExprs = NumOutputs +NumInputs;
540 Names = new (C) IdentifierInfo*[NumExprs];
541 std::copy(names, names + NumExprs, Names);
543 Exprs = new (C) Stmt*[NumExprs];
544 std::copy(exprs, exprs + NumExprs, Exprs);
546 Constraints = new (C) StringLiteral*[NumExprs];
547 std::copy(constraints, constraints + NumExprs, Constraints);
549 Clobbers = new (C) StringLiteral*[NumClobbers];
550 std::copy(clobbers, clobbers + NumClobbers, Clobbers);
553 ObjCForCollectionStmt::ObjCForCollectionStmt(Stmt *Elem, Expr *Collect,
554 Stmt *Body, SourceLocation FCL,
556 : Stmt(ObjCForCollectionStmtClass) {
557 SubExprs[ELEM] = Elem;
558 SubExprs[COLLECTION] = reinterpret_cast<Stmt*>(Collect);
559 SubExprs[BODY] = Body;
564 ObjCAtTryStmt::ObjCAtTryStmt(SourceLocation atTryLoc, Stmt *atTryStmt,
565 Stmt **CatchStmts, unsigned NumCatchStmts,
567 : Stmt(ObjCAtTryStmtClass), AtTryLoc(atTryLoc),
568 NumCatchStmts(NumCatchStmts), HasFinally(atFinallyStmt != 0)
570 Stmt **Stmts = getStmts();
571 Stmts[0] = atTryStmt;
572 for (unsigned I = 0; I != NumCatchStmts; ++I)
573 Stmts[I + 1] = CatchStmts[I];
576 Stmts[NumCatchStmts + 1] = atFinallyStmt;
579 ObjCAtTryStmt *ObjCAtTryStmt::Create(ASTContext &Context,
580 SourceLocation atTryLoc,
583 unsigned NumCatchStmts,
584 Stmt *atFinallyStmt) {
585 unsigned Size = sizeof(ObjCAtTryStmt) +
586 (1 + NumCatchStmts + (atFinallyStmt != 0)) * sizeof(Stmt *);
587 void *Mem = Context.Allocate(Size, llvm::alignOf<ObjCAtTryStmt>());
588 return new (Mem) ObjCAtTryStmt(atTryLoc, atTryStmt, CatchStmts, NumCatchStmts,
592 ObjCAtTryStmt *ObjCAtTryStmt::CreateEmpty(ASTContext &Context,
593 unsigned NumCatchStmts,
595 unsigned Size = sizeof(ObjCAtTryStmt) +
596 (1 + NumCatchStmts + HasFinally) * sizeof(Stmt *);
597 void *Mem = Context.Allocate(Size, llvm::alignOf<ObjCAtTryStmt>());
598 return new (Mem) ObjCAtTryStmt(EmptyShell(), NumCatchStmts, HasFinally);
601 SourceRange ObjCAtTryStmt::getSourceRange() const {
602 SourceLocation EndLoc;
604 EndLoc = getFinallyStmt()->getLocEnd();
605 else if (NumCatchStmts)
606 EndLoc = getCatchStmt(NumCatchStmts - 1)->getLocEnd();
608 EndLoc = getTryBody()->getLocEnd();
610 return SourceRange(AtTryLoc, EndLoc);
613 CXXTryStmt *CXXTryStmt::Create(ASTContext &C, SourceLocation tryLoc,
614 Stmt *tryBlock, Stmt **handlers,
615 unsigned numHandlers) {
616 std::size_t Size = sizeof(CXXTryStmt);
617 Size += ((numHandlers + 1) * sizeof(Stmt));
619 void *Mem = C.Allocate(Size, llvm::alignOf<CXXTryStmt>());
620 return new (Mem) CXXTryStmt(tryLoc, tryBlock, handlers, numHandlers);
623 CXXTryStmt *CXXTryStmt::Create(ASTContext &C, EmptyShell Empty,
624 unsigned numHandlers) {
625 std::size_t Size = sizeof(CXXTryStmt);
626 Size += ((numHandlers + 1) * sizeof(Stmt));
628 void *Mem = C.Allocate(Size, llvm::alignOf<CXXTryStmt>());
629 return new (Mem) CXXTryStmt(Empty, numHandlers);
632 CXXTryStmt::CXXTryStmt(SourceLocation tryLoc, Stmt *tryBlock,
633 Stmt **handlers, unsigned numHandlers)
634 : Stmt(CXXTryStmtClass), TryLoc(tryLoc), NumHandlers(numHandlers) {
635 Stmt **Stmts = reinterpret_cast<Stmt **>(this + 1);
637 std::copy(handlers, handlers + NumHandlers, Stmts + 1);
640 CXXForRangeStmt::CXXForRangeStmt(DeclStmt *Range, DeclStmt *BeginEndStmt,
641 Expr *Cond, Expr *Inc, DeclStmt *LoopVar,
642 Stmt *Body, SourceLocation FL,
643 SourceLocation CL, SourceLocation RPL)
644 : Stmt(CXXForRangeStmtClass), ForLoc(FL), ColonLoc(CL), RParenLoc(RPL) {
645 SubExprs[RANGE] = Range;
646 SubExprs[BEGINEND] = BeginEndStmt;
647 SubExprs[COND] = reinterpret_cast<Stmt*>(Cond);
648 SubExprs[INC] = reinterpret_cast<Stmt*>(Inc);
649 SubExprs[LOOPVAR] = LoopVar;
650 SubExprs[BODY] = Body;
653 Expr *CXXForRangeStmt::getRangeInit() {
654 DeclStmt *RangeStmt = getRangeStmt();
655 VarDecl *RangeDecl = dyn_cast_or_null<VarDecl>(RangeStmt->getSingleDecl());
656 assert(RangeDecl &&& "for-range should have a single var decl");
657 return RangeDecl->getInit();
660 const Expr *CXXForRangeStmt::getRangeInit() const {
661 return const_cast<CXXForRangeStmt*>(this)->getRangeInit();
664 VarDecl *CXXForRangeStmt::getLoopVariable() {
665 Decl *LV = cast<DeclStmt>(getLoopVarStmt())->getSingleDecl();
666 assert(LV && "No loop variable in CXXForRangeStmt");
667 return cast<VarDecl>(LV);
670 const VarDecl *CXXForRangeStmt::getLoopVariable() const {
671 return const_cast<CXXForRangeStmt*>(this)->getLoopVariable();
674 IfStmt::IfStmt(ASTContext &C, SourceLocation IL, VarDecl *var, Expr *cond,
675 Stmt *then, SourceLocation EL, Stmt *elsev)
676 : Stmt(IfStmtClass), IfLoc(IL), ElseLoc(EL)
678 setConditionVariable(C, var);
679 SubExprs[COND] = reinterpret_cast<Stmt*>(cond);
680 SubExprs[THEN] = then;
681 SubExprs[ELSE] = elsev;
684 VarDecl *IfStmt::getConditionVariable() const {
688 DeclStmt *DS = cast<DeclStmt>(SubExprs[VAR]);
689 return cast<VarDecl>(DS->getSingleDecl());
692 void IfStmt::setConditionVariable(ASTContext &C, VarDecl *V) {
698 SourceRange VarRange = V->getSourceRange();
699 SubExprs[VAR] = new (C) DeclStmt(DeclGroupRef(V), VarRange.getBegin(),
703 ForStmt::ForStmt(ASTContext &C, Stmt *Init, Expr *Cond, VarDecl *condVar,
704 Expr *Inc, Stmt *Body, SourceLocation FL, SourceLocation LP,
706 : Stmt(ForStmtClass), ForLoc(FL), LParenLoc(LP), RParenLoc(RP)
708 SubExprs[INIT] = Init;
709 setConditionVariable(C, condVar);
710 SubExprs[COND] = reinterpret_cast<Stmt*>(Cond);
711 SubExprs[INC] = reinterpret_cast<Stmt*>(Inc);
712 SubExprs[BODY] = Body;
715 VarDecl *ForStmt::getConditionVariable() const {
716 if (!SubExprs[CONDVAR])
719 DeclStmt *DS = cast<DeclStmt>(SubExprs[CONDVAR]);
720 return cast<VarDecl>(DS->getSingleDecl());
723 void ForStmt::setConditionVariable(ASTContext &C, VarDecl *V) {
725 SubExprs[CONDVAR] = 0;
729 SourceRange VarRange = V->getSourceRange();
730 SubExprs[CONDVAR] = new (C) DeclStmt(DeclGroupRef(V), VarRange.getBegin(),
734 SwitchStmt::SwitchStmt(ASTContext &C, VarDecl *Var, Expr *cond)
735 : Stmt(SwitchStmtClass), FirstCase(0), AllEnumCasesCovered(0)
737 setConditionVariable(C, Var);
738 SubExprs[COND] = reinterpret_cast<Stmt*>(cond);
739 SubExprs[BODY] = NULL;
742 VarDecl *SwitchStmt::getConditionVariable() const {
746 DeclStmt *DS = cast<DeclStmt>(SubExprs[VAR]);
747 return cast<VarDecl>(DS->getSingleDecl());
750 void SwitchStmt::setConditionVariable(ASTContext &C, VarDecl *V) {
756 SourceRange VarRange = V->getSourceRange();
757 SubExprs[VAR] = new (C) DeclStmt(DeclGroupRef(V), VarRange.getBegin(),
761 Stmt *SwitchCase::getSubStmt() {
762 if (isa<CaseStmt>(this))
763 return cast<CaseStmt>(this)->getSubStmt();
764 return cast<DefaultStmt>(this)->getSubStmt();
767 WhileStmt::WhileStmt(ASTContext &C, VarDecl *Var, Expr *cond, Stmt *body,
769 : Stmt(WhileStmtClass) {
770 setConditionVariable(C, Var);
771 SubExprs[COND] = reinterpret_cast<Stmt*>(cond);
772 SubExprs[BODY] = body;
776 VarDecl *WhileStmt::getConditionVariable() const {
780 DeclStmt *DS = cast<DeclStmt>(SubExprs[VAR]);
781 return cast<VarDecl>(DS->getSingleDecl());
784 void WhileStmt::setConditionVariable(ASTContext &C, VarDecl *V) {
790 SourceRange VarRange = V->getSourceRange();
791 SubExprs[VAR] = new (C) DeclStmt(DeclGroupRef(V), VarRange.getBegin(),
796 LabelDecl *IndirectGotoStmt::getConstantTarget() {
797 if (AddrLabelExpr *E =
798 dyn_cast<AddrLabelExpr>(getTarget()->IgnoreParenImpCasts()))
799 return E->getLabel();
804 const Expr* ReturnStmt::getRetValue() const {
805 return cast_or_null<Expr>(RetExpr);
807 Expr* ReturnStmt::getRetValue() {
808 return cast_or_null<Expr>(RetExpr);
811 SEHTryStmt::SEHTryStmt(bool IsCXXTry,
812 SourceLocation TryLoc,
815 : Stmt(SEHTryStmtClass),
819 Children[TRY] = TryBlock;
820 Children[HANDLER] = Handler;
823 SEHTryStmt* SEHTryStmt::Create(ASTContext &C,
825 SourceLocation TryLoc,
828 return new(C) SEHTryStmt(IsCXXTry,TryLoc,TryBlock,Handler);
831 SEHExceptStmt* SEHTryStmt::getExceptHandler() const {
832 return dyn_cast<SEHExceptStmt>(getHandler());
835 SEHFinallyStmt* SEHTryStmt::getFinallyHandler() const {
836 return dyn_cast<SEHFinallyStmt>(getHandler());
839 SEHExceptStmt::SEHExceptStmt(SourceLocation Loc,
842 : Stmt(SEHExceptStmtClass),
845 Children[FILTER_EXPR] = reinterpret_cast<Stmt*>(FilterExpr);
846 Children[BLOCK] = Block;
849 SEHExceptStmt* SEHExceptStmt::Create(ASTContext &C,
853 return new(C) SEHExceptStmt(Loc,FilterExpr,Block);
856 SEHFinallyStmt::SEHFinallyStmt(SourceLocation Loc,
858 : Stmt(SEHFinallyStmtClass),
863 SEHFinallyStmt* SEHFinallyStmt::Create(ASTContext &C,
866 return new(C)SEHFinallyStmt(Loc,Block);