1 //===--- Stmt.h - Classes for representing statements -----------*- C++ -*-===//
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 defines the Stmt interface and subclasses.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_CLANG_AST_STMT_H
15 #define LLVM_CLANG_AST_STMT_H
17 #include "clang/AST/DeclGroup.h"
18 #include "clang/AST/StmtIterator.h"
19 #include "clang/Basic/CapturedStmt.h"
20 #include "clang/Basic/IdentifierTable.h"
21 #include "clang/Basic/LLVM.h"
22 #include "clang/Basic/SourceLocation.h"
23 #include "llvm/ADT/ArrayRef.h"
24 #include "llvm/ADT/PointerIntPair.h"
25 #include "llvm/Support/Compiler.h"
26 #include "llvm/Support/ErrorHandling.h"
30 class FoldingSetNodeID;
43 struct PrintingPolicy;
52 //===--------------------------------------------------------------------===//
53 // ExprIterator - Iterators for iterating over Stmt* arrays that contain
54 // only Expr*. This is needed because AST nodes use Stmt* arrays to store
55 // references to children (to be compatible with StmtIterator).
56 //===--------------------------------------------------------------------===//
64 ExprIterator(Stmt** i) : I(i) {}
65 ExprIterator() : I(0) {}
66 ExprIterator& operator++() { ++I; return *this; }
67 ExprIterator operator-(size_t i) { return I-i; }
68 ExprIterator operator+(size_t i) { return I+i; }
69 Expr* operator[](size_t idx);
70 // FIXME: Verify that this will correctly return a signed distance.
71 signed operator-(const ExprIterator& R) const { return I - R.I; }
72 Expr* operator*() const;
73 Expr* operator->() const;
74 bool operator==(const ExprIterator& R) const { return I == R.I; }
75 bool operator!=(const ExprIterator& R) const { return I != R.I; }
76 bool operator>(const ExprIterator& R) const { return I > R.I; }
77 bool operator>=(const ExprIterator& R) const { return I >= R.I; }
80 class ConstExprIterator {
81 const Stmt * const *I;
83 ConstExprIterator(const Stmt * const *i) : I(i) {}
84 ConstExprIterator() : I(0) {}
85 ConstExprIterator& operator++() { ++I; return *this; }
86 ConstExprIterator operator+(size_t i) const { return I+i; }
87 ConstExprIterator operator-(size_t i) const { return I-i; }
88 const Expr * operator[](size_t idx) const;
89 signed operator-(const ConstExprIterator& R) const { return I - R.I; }
90 const Expr * operator*() const;
91 const Expr * operator->() const;
92 bool operator==(const ConstExprIterator& R) const { return I == R.I; }
93 bool operator!=(const ConstExprIterator& R) const { return I != R.I; }
94 bool operator>(const ConstExprIterator& R) const { return I > R.I; }
95 bool operator>=(const ConstExprIterator& R) const { return I >= R.I; }
98 //===----------------------------------------------------------------------===//
99 // AST classes for statements.
100 //===----------------------------------------------------------------------===//
102 /// Stmt - This represents one statement.
108 #define STMT(CLASS, PARENT) CLASS##Class,
109 #define STMT_RANGE(BASE, FIRST, LAST) \
110 first##BASE##Constant=FIRST##Class, last##BASE##Constant=LAST##Class,
111 #define LAST_STMT_RANGE(BASE, FIRST, LAST) \
112 first##BASE##Constant=FIRST##Class, last##BASE##Constant=LAST##Class
113 #define ABSTRACT_STMT(STMT)
114 #include "clang/AST/StmtNodes.inc"
117 // Make vanilla 'new' and 'delete' illegal for Stmts.
119 void* operator new(size_t bytes) throw() {
120 llvm_unreachable("Stmts cannot be allocated with regular 'new'.");
122 void operator delete(void* data) throw() {
123 llvm_unreachable("Stmts cannot be released with regular 'delete'.");
126 class StmtBitfields {
129 /// \brief The statement class.
132 enum { NumStmtBits = 8 };
134 class CompoundStmtBitfields {
135 friend class CompoundStmt;
136 unsigned : NumStmtBits;
138 unsigned NumStmts : 32 - NumStmtBits;
141 class ExprBitfields {
143 friend class DeclRefExpr; // computeDependence
144 friend class InitListExpr; // ctor
145 friend class DesignatedInitExpr; // ctor
146 friend class BlockDeclRefExpr; // ctor
147 friend class ASTStmtReader; // deserialization
148 friend class CXXNewExpr; // ctor
149 friend class DependentScopeDeclRefExpr; // ctor
150 friend class CXXConstructExpr; // ctor
151 friend class CallExpr; // ctor
152 friend class OffsetOfExpr; // ctor
153 friend class ObjCMessageExpr; // ctor
154 friend class ObjCArrayLiteral; // ctor
155 friend class ObjCDictionaryLiteral; // ctor
156 friend class ShuffleVectorExpr; // ctor
157 friend class ParenListExpr; // ctor
158 friend class CXXUnresolvedConstructExpr; // ctor
159 friend class CXXDependentScopeMemberExpr; // ctor
160 friend class OverloadExpr; // ctor
161 friend class PseudoObjectExpr; // ctor
162 friend class AtomicExpr; // ctor
163 unsigned : NumStmtBits;
165 unsigned ValueKind : 2;
166 unsigned ObjectKind : 2;
167 unsigned TypeDependent : 1;
168 unsigned ValueDependent : 1;
169 unsigned InstantiationDependent : 1;
170 unsigned ContainsUnexpandedParameterPack : 1;
172 enum { NumExprBits = 16 };
174 class CharacterLiteralBitfields {
175 friend class CharacterLiteral;
176 unsigned : NumExprBits;
181 enum APFloatSemantics {
190 class FloatingLiteralBitfields {
191 friend class FloatingLiteral;
192 unsigned : NumExprBits;
194 unsigned Semantics : 3; // Provides semantics for APFloat construction
195 unsigned IsExact : 1;
198 class UnaryExprOrTypeTraitExprBitfields {
199 friend class UnaryExprOrTypeTraitExpr;
200 unsigned : NumExprBits;
203 unsigned IsType : 1; // true if operand is a type, false if an expression.
206 class DeclRefExprBitfields {
207 friend class DeclRefExpr;
208 friend class ASTStmtReader; // deserialization
209 unsigned : NumExprBits;
211 unsigned HasQualifier : 1;
212 unsigned HasTemplateKWAndArgsInfo : 1;
213 unsigned HasFoundDecl : 1;
214 unsigned HadMultipleCandidates : 1;
215 unsigned RefersToEnclosingLocal : 1;
218 class CastExprBitfields {
219 friend class CastExpr;
220 unsigned : NumExprBits;
223 unsigned BasePathSize : 32 - 6 - NumExprBits;
226 class CallExprBitfields {
227 friend class CallExpr;
228 unsigned : NumExprBits;
230 unsigned NumPreArgs : 1;
233 class ExprWithCleanupsBitfields {
234 friend class ExprWithCleanups;
235 friend class ASTStmtReader; // deserialization
237 unsigned : NumExprBits;
239 unsigned NumObjects : 32 - NumExprBits;
242 class PseudoObjectExprBitfields {
243 friend class PseudoObjectExpr;
244 friend class ASTStmtReader; // deserialization
246 unsigned : NumExprBits;
248 // These don't need to be particularly wide, because they're
249 // strictly limited by the forms of expressions we permit.
250 unsigned NumSubExprs : 8;
251 unsigned ResultIndex : 32 - 8 - NumExprBits;
254 class ObjCIndirectCopyRestoreExprBitfields {
255 friend class ObjCIndirectCopyRestoreExpr;
256 unsigned : NumExprBits;
258 unsigned ShouldCopy : 1;
261 class InitListExprBitfields {
262 friend class InitListExpr;
264 unsigned : NumExprBits;
266 /// Whether this initializer list originally had a GNU array-range
267 /// designator in it. This is a temporary marker used by CodeGen.
268 unsigned HadArrayRangeDesignator : 1;
271 class TypeTraitExprBitfields {
272 friend class TypeTraitExpr;
273 friend class ASTStmtReader;
274 friend class ASTStmtWriter;
276 unsigned : NumExprBits;
278 /// \brief The kind of type trait, which is a value of a TypeTrait enumerator.
281 /// \brief If this expression is not value-dependent, this indicates whether
282 /// the trait evaluated true or false.
285 /// \brief The number of arguments to this type trait.
286 unsigned NumArgs : 32 - 8 - 1 - NumExprBits;
290 // FIXME: this is wasteful on 64-bit platforms.
293 StmtBitfields StmtBits;
294 CompoundStmtBitfields CompoundStmtBits;
295 ExprBitfields ExprBits;
296 CharacterLiteralBitfields CharacterLiteralBits;
297 FloatingLiteralBitfields FloatingLiteralBits;
298 UnaryExprOrTypeTraitExprBitfields UnaryExprOrTypeTraitExprBits;
299 DeclRefExprBitfields DeclRefExprBits;
300 CastExprBitfields CastExprBits;
301 CallExprBitfields CallExprBits;
302 ExprWithCleanupsBitfields ExprWithCleanupsBits;
303 PseudoObjectExprBitfields PseudoObjectExprBits;
304 ObjCIndirectCopyRestoreExprBitfields ObjCIndirectCopyRestoreExprBits;
305 InitListExprBitfields InitListExprBits;
306 TypeTraitExprBitfields TypeTraitExprBits;
309 friend class ASTStmtReader;
310 friend class ASTStmtWriter;
313 // Only allow allocation of Stmts using the allocator in ASTContext
314 // or by doing a placement new.
315 void* operator new(size_t bytes, const ASTContext& C,
316 unsigned alignment = 8);
318 void* operator new(size_t bytes, const ASTContext* C,
319 unsigned alignment = 8) {
320 return operator new(bytes, *C, alignment);
323 void* operator new(size_t bytes, void* mem) throw() {
327 void operator delete(void*, const ASTContext&, unsigned) throw() { }
328 void operator delete(void*, const ASTContext*, unsigned) throw() { }
329 void operator delete(void*, size_t) throw() { }
330 void operator delete(void*, void*) throw() { }
333 /// \brief A placeholder type used to construct an empty shell of a
334 /// type, that will be filled in later (e.g., by some
335 /// de-serialization).
336 struct EmptyShell { };
339 /// \brief Whether statistic collection is enabled.
340 static bool StatisticsEnabled;
343 /// \brief Construct an empty statement.
344 explicit Stmt(StmtClass SC, EmptyShell) {
345 StmtBits.sClass = SC;
346 if (StatisticsEnabled) Stmt::addStmtClass(SC);
351 StmtBits.sClass = SC;
352 if (StatisticsEnabled) Stmt::addStmtClass(SC);
355 StmtClass getStmtClass() const {
356 return static_cast<StmtClass>(StmtBits.sClass);
358 const char *getStmtClassName() const;
360 /// SourceLocation tokens are not useful in isolation - they are low level
361 /// value objects created/interpreted by SourceManager. We assume AST
362 /// clients will have a pointer to the respective SourceManager.
363 SourceRange getSourceRange() const LLVM_READONLY;
364 SourceLocation getLocStart() const LLVM_READONLY;
365 SourceLocation getLocEnd() const LLVM_READONLY;
367 // global temp stats (until we have a per-module visitor)
368 static void addStmtClass(const StmtClass s);
369 static void EnableStatistics();
370 static void PrintStats();
372 /// \brief Dumps the specified AST fragment and all subtrees to
374 LLVM_ATTRIBUTE_USED void dump() const;
375 LLVM_ATTRIBUTE_USED void dump(SourceManager &SM) const;
376 void dump(raw_ostream &OS, SourceManager &SM) const;
378 /// dumpColor - same as dump(), but forces color highlighting.
379 LLVM_ATTRIBUTE_USED void dumpColor() const;
381 /// dumpPretty/printPretty - These two methods do a "pretty print" of the AST
382 /// back to its original source language syntax.
383 void dumpPretty(const ASTContext &Context) const;
384 void printPretty(raw_ostream &OS, PrinterHelper *Helper,
385 const PrintingPolicy &Policy,
386 unsigned Indentation = 0) const;
388 /// viewAST - Visualize an AST rooted at this Stmt* using GraphViz. Only
389 /// works on systems with GraphViz (Mac OS X) or dot+gv installed.
390 void viewAST() const;
392 /// Skip past any implicit AST nodes which might surround this
393 /// statement, such as ExprWithCleanups or ImplicitCastExpr nodes.
394 Stmt *IgnoreImplicit();
396 const Stmt *stripLabelLikeStatements() const;
397 Stmt *stripLabelLikeStatements() {
398 return const_cast<Stmt*>(
399 const_cast<const Stmt*>(this)->stripLabelLikeStatements());
402 /// Child Iterators: All subclasses must implement 'children'
403 /// to permit easy iteration over the substatements/subexpessions of an
404 /// AST node. This permits easy iteration over all nodes in the AST.
405 typedef StmtIterator child_iterator;
406 typedef ConstStmtIterator const_child_iterator;
408 typedef StmtRange child_range;
409 typedef ConstStmtRange const_child_range;
411 child_range children();
412 const_child_range children() const {
413 return const_cast<Stmt*>(this)->children();
416 child_iterator child_begin() { return children().first; }
417 child_iterator child_end() { return children().second; }
419 const_child_iterator child_begin() const { return children().first; }
420 const_child_iterator child_end() const { return children().second; }
422 /// \brief Produce a unique representation of the given statement.
424 /// \param ID once the profiling operation is complete, will contain
425 /// the unique representation of the given statement.
427 /// \param Context the AST context in which the statement resides
429 /// \param Canonical whether the profile should be based on the canonical
430 /// representation of this statement (e.g., where non-type template
431 /// parameters are identified by index/level rather than their
432 /// declaration pointers) or the exact representation of the statement as
433 /// written in the source.
434 void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
435 bool Canonical) const;
438 /// DeclStmt - Adaptor class for mixing declarations with statements and
439 /// expressions. For example, CompoundStmt mixes statements, expressions
440 /// and declarations (variables, types). Another example is ForStmt, where
441 /// the first statement can be an expression or a declaration.
443 class DeclStmt : public Stmt {
445 SourceLocation StartLoc, EndLoc;
448 DeclStmt(DeclGroupRef dg, SourceLocation startLoc,
449 SourceLocation endLoc) : Stmt(DeclStmtClass), DG(dg),
450 StartLoc(startLoc), EndLoc(endLoc) {}
452 /// \brief Build an empty declaration statement.
453 explicit DeclStmt(EmptyShell Empty) : Stmt(DeclStmtClass, Empty) { }
455 /// isSingleDecl - This method returns true if this DeclStmt refers
456 /// to a single Decl.
457 bool isSingleDecl() const {
458 return DG.isSingleDecl();
461 const Decl *getSingleDecl() const { return DG.getSingleDecl(); }
462 Decl *getSingleDecl() { return DG.getSingleDecl(); }
464 const DeclGroupRef getDeclGroup() const { return DG; }
465 DeclGroupRef getDeclGroup() { return DG; }
466 void setDeclGroup(DeclGroupRef DGR) { DG = DGR; }
468 SourceLocation getStartLoc() const { return StartLoc; }
469 void setStartLoc(SourceLocation L) { StartLoc = L; }
470 SourceLocation getEndLoc() const { return EndLoc; }
471 void setEndLoc(SourceLocation L) { EndLoc = L; }
473 SourceLocation getLocStart() const LLVM_READONLY { return StartLoc; }
474 SourceLocation getLocEnd() const LLVM_READONLY { return EndLoc; }
476 static bool classof(const Stmt *T) {
477 return T->getStmtClass() == DeclStmtClass;
480 // Iterators over subexpressions.
481 child_range children() {
482 return child_range(child_iterator(DG.begin(), DG.end()),
483 child_iterator(DG.end(), DG.end()));
486 typedef DeclGroupRef::iterator decl_iterator;
487 typedef DeclGroupRef::const_iterator const_decl_iterator;
489 decl_iterator decl_begin() { return DG.begin(); }
490 decl_iterator decl_end() { return DG.end(); }
491 const_decl_iterator decl_begin() const { return DG.begin(); }
492 const_decl_iterator decl_end() const { return DG.end(); }
494 typedef std::reverse_iterator<decl_iterator> reverse_decl_iterator;
495 reverse_decl_iterator decl_rbegin() {
496 return reverse_decl_iterator(decl_end());
498 reverse_decl_iterator decl_rend() {
499 return reverse_decl_iterator(decl_begin());
503 /// NullStmt - This is the null statement ";": C99 6.8.3p3.
505 class NullStmt : public Stmt {
506 SourceLocation SemiLoc;
508 /// \brief True if the null statement was preceded by an empty macro, e.g:
513 bool HasLeadingEmptyMacro;
515 NullStmt(SourceLocation L, bool hasLeadingEmptyMacro = false)
516 : Stmt(NullStmtClass), SemiLoc(L),
517 HasLeadingEmptyMacro(hasLeadingEmptyMacro) {}
519 /// \brief Build an empty null statement.
520 explicit NullStmt(EmptyShell Empty) : Stmt(NullStmtClass, Empty),
521 HasLeadingEmptyMacro(false) { }
523 SourceLocation getSemiLoc() const { return SemiLoc; }
524 void setSemiLoc(SourceLocation L) { SemiLoc = L; }
526 bool hasLeadingEmptyMacro() const { return HasLeadingEmptyMacro; }
528 SourceLocation getLocStart() const LLVM_READONLY { return SemiLoc; }
529 SourceLocation getLocEnd() const LLVM_READONLY { return SemiLoc; }
531 static bool classof(const Stmt *T) {
532 return T->getStmtClass() == NullStmtClass;
535 child_range children() { return child_range(); }
537 friend class ASTStmtReader;
538 friend class ASTStmtWriter;
541 /// CompoundStmt - This represents a group of statements like { stmt stmt }.
543 class CompoundStmt : public Stmt {
545 SourceLocation LBracLoc, RBracLoc;
547 CompoundStmt(const ASTContext &C, ArrayRef<Stmt*> Stmts,
548 SourceLocation LB, SourceLocation RB);
550 // \brief Build an empty compound statement with a location.
551 explicit CompoundStmt(SourceLocation Loc)
552 : Stmt(CompoundStmtClass), Body(0), LBracLoc(Loc), RBracLoc(Loc) {
553 CompoundStmtBits.NumStmts = 0;
556 // \brief Build an empty compound statement.
557 explicit CompoundStmt(EmptyShell Empty)
558 : Stmt(CompoundStmtClass, Empty), Body(0) {
559 CompoundStmtBits.NumStmts = 0;
562 void setStmts(const ASTContext &C, Stmt **Stmts, unsigned NumStmts);
564 bool body_empty() const { return CompoundStmtBits.NumStmts == 0; }
565 unsigned size() const { return CompoundStmtBits.NumStmts; }
567 typedef Stmt** body_iterator;
568 body_iterator body_begin() { return Body; }
569 body_iterator body_end() { return Body + size(); }
570 Stmt *body_back() { return !body_empty() ? Body[size()-1] : 0; }
572 void setLastStmt(Stmt *S) {
573 assert(!body_empty() && "setLastStmt");
577 typedef Stmt* const * const_body_iterator;
578 const_body_iterator body_begin() const { return Body; }
579 const_body_iterator body_end() const { return Body + size(); }
580 const Stmt *body_back() const { return !body_empty() ? Body[size()-1] : 0; }
582 typedef std::reverse_iterator<body_iterator> reverse_body_iterator;
583 reverse_body_iterator body_rbegin() {
584 return reverse_body_iterator(body_end());
586 reverse_body_iterator body_rend() {
587 return reverse_body_iterator(body_begin());
590 typedef std::reverse_iterator<const_body_iterator>
591 const_reverse_body_iterator;
593 const_reverse_body_iterator body_rbegin() const {
594 return const_reverse_body_iterator(body_end());
597 const_reverse_body_iterator body_rend() const {
598 return const_reverse_body_iterator(body_begin());
601 SourceLocation getLocStart() const LLVM_READONLY { return LBracLoc; }
602 SourceLocation getLocEnd() const LLVM_READONLY { return RBracLoc; }
604 SourceLocation getLBracLoc() const { return LBracLoc; }
605 void setLBracLoc(SourceLocation L) { LBracLoc = L; }
606 SourceLocation getRBracLoc() const { return RBracLoc; }
607 void setRBracLoc(SourceLocation L) { RBracLoc = L; }
609 static bool classof(const Stmt *T) {
610 return T->getStmtClass() == CompoundStmtClass;
614 child_range children() {
615 return child_range(&Body[0], &Body[0]+CompoundStmtBits.NumStmts);
618 const_child_range children() const {
619 return child_range(&Body[0], &Body[0]+CompoundStmtBits.NumStmts);
623 // SwitchCase is the base class for CaseStmt and DefaultStmt,
624 class SwitchCase : public Stmt {
626 // A pointer to the following CaseStmt or DefaultStmt class,
627 // used by SwitchStmt.
628 SwitchCase *NextSwitchCase;
629 SourceLocation KeywordLoc;
630 SourceLocation ColonLoc;
632 SwitchCase(StmtClass SC, SourceLocation KWLoc, SourceLocation ColonLoc)
633 : Stmt(SC), NextSwitchCase(0), KeywordLoc(KWLoc), ColonLoc(ColonLoc) {}
635 SwitchCase(StmtClass SC, EmptyShell)
636 : Stmt(SC), NextSwitchCase(0) {}
639 const SwitchCase *getNextSwitchCase() const { return NextSwitchCase; }
641 SwitchCase *getNextSwitchCase() { return NextSwitchCase; }
643 void setNextSwitchCase(SwitchCase *SC) { NextSwitchCase = SC; }
645 SourceLocation getKeywordLoc() const { return KeywordLoc; }
646 void setKeywordLoc(SourceLocation L) { KeywordLoc = L; }
647 SourceLocation getColonLoc() const { return ColonLoc; }
648 void setColonLoc(SourceLocation L) { ColonLoc = L; }
651 const Stmt *getSubStmt() const {
652 return const_cast<SwitchCase*>(this)->getSubStmt();
655 SourceLocation getLocStart() const LLVM_READONLY { return KeywordLoc; }
656 SourceLocation getLocEnd() const LLVM_READONLY;
658 static bool classof(const Stmt *T) {
659 return T->getStmtClass() == CaseStmtClass ||
660 T->getStmtClass() == DefaultStmtClass;
664 class CaseStmt : public SwitchCase {
665 enum { LHS, RHS, SUBSTMT, END_EXPR };
666 Stmt* SubExprs[END_EXPR]; // The expression for the RHS is Non-null for
667 // GNU "case 1 ... 4" extension
668 SourceLocation EllipsisLoc;
670 CaseStmt(Expr *lhs, Expr *rhs, SourceLocation caseLoc,
671 SourceLocation ellipsisLoc, SourceLocation colonLoc)
672 : SwitchCase(CaseStmtClass, caseLoc, colonLoc) {
673 SubExprs[SUBSTMT] = 0;
674 SubExprs[LHS] = reinterpret_cast<Stmt*>(lhs);
675 SubExprs[RHS] = reinterpret_cast<Stmt*>(rhs);
676 EllipsisLoc = ellipsisLoc;
679 /// \brief Build an empty switch case statement.
680 explicit CaseStmt(EmptyShell Empty) : SwitchCase(CaseStmtClass, Empty) { }
682 SourceLocation getCaseLoc() const { return KeywordLoc; }
683 void setCaseLoc(SourceLocation L) { KeywordLoc = L; }
684 SourceLocation getEllipsisLoc() const { return EllipsisLoc; }
685 void setEllipsisLoc(SourceLocation L) { EllipsisLoc = L; }
686 SourceLocation getColonLoc() const { return ColonLoc; }
687 void setColonLoc(SourceLocation L) { ColonLoc = L; }
689 Expr *getLHS() { return reinterpret_cast<Expr*>(SubExprs[LHS]); }
690 Expr *getRHS() { return reinterpret_cast<Expr*>(SubExprs[RHS]); }
691 Stmt *getSubStmt() { return SubExprs[SUBSTMT]; }
693 const Expr *getLHS() const {
694 return reinterpret_cast<const Expr*>(SubExprs[LHS]);
696 const Expr *getRHS() const {
697 return reinterpret_cast<const Expr*>(SubExprs[RHS]);
699 const Stmt *getSubStmt() const { return SubExprs[SUBSTMT]; }
701 void setSubStmt(Stmt *S) { SubExprs[SUBSTMT] = S; }
702 void setLHS(Expr *Val) { SubExprs[LHS] = reinterpret_cast<Stmt*>(Val); }
703 void setRHS(Expr *Val) { SubExprs[RHS] = reinterpret_cast<Stmt*>(Val); }
705 SourceLocation getLocStart() const LLVM_READONLY { return KeywordLoc; }
706 SourceLocation getLocEnd() const LLVM_READONLY {
707 // Handle deeply nested case statements with iteration instead of recursion.
708 const CaseStmt *CS = this;
709 while (const CaseStmt *CS2 = dyn_cast<CaseStmt>(CS->getSubStmt()))
712 return CS->getSubStmt()->getLocEnd();
715 static bool classof(const Stmt *T) {
716 return T->getStmtClass() == CaseStmtClass;
720 child_range children() {
721 return child_range(&SubExprs[0], &SubExprs[END_EXPR]);
725 class DefaultStmt : public SwitchCase {
728 DefaultStmt(SourceLocation DL, SourceLocation CL, Stmt *substmt) :
729 SwitchCase(DefaultStmtClass, DL, CL), SubStmt(substmt) {}
731 /// \brief Build an empty default statement.
732 explicit DefaultStmt(EmptyShell Empty)
733 : SwitchCase(DefaultStmtClass, Empty) { }
735 Stmt *getSubStmt() { return SubStmt; }
736 const Stmt *getSubStmt() const { return SubStmt; }
737 void setSubStmt(Stmt *S) { SubStmt = S; }
739 SourceLocation getDefaultLoc() const { return KeywordLoc; }
740 void setDefaultLoc(SourceLocation L) { KeywordLoc = L; }
741 SourceLocation getColonLoc() const { return ColonLoc; }
742 void setColonLoc(SourceLocation L) { ColonLoc = L; }
744 SourceLocation getLocStart() const LLVM_READONLY { return KeywordLoc; }
745 SourceLocation getLocEnd() const LLVM_READONLY { return SubStmt->getLocEnd();}
747 static bool classof(const Stmt *T) {
748 return T->getStmtClass() == DefaultStmtClass;
752 child_range children() { return child_range(&SubStmt, &SubStmt+1); }
755 inline SourceLocation SwitchCase::getLocEnd() const {
756 if (const CaseStmt *CS = dyn_cast<CaseStmt>(this))
757 return CS->getLocEnd();
758 return cast<DefaultStmt>(this)->getLocEnd();
761 /// LabelStmt - Represents a label, which has a substatement. For example:
764 class LabelStmt : public Stmt {
767 SourceLocation IdentLoc;
769 LabelStmt(SourceLocation IL, LabelDecl *D, Stmt *substmt)
770 : Stmt(LabelStmtClass), TheDecl(D), SubStmt(substmt), IdentLoc(IL) {
773 // \brief Build an empty label statement.
774 explicit LabelStmt(EmptyShell Empty) : Stmt(LabelStmtClass, Empty) { }
776 SourceLocation getIdentLoc() const { return IdentLoc; }
777 LabelDecl *getDecl() const { return TheDecl; }
778 void setDecl(LabelDecl *D) { TheDecl = D; }
779 const char *getName() const;
780 Stmt *getSubStmt() { return SubStmt; }
781 const Stmt *getSubStmt() const { return SubStmt; }
782 void setIdentLoc(SourceLocation L) { IdentLoc = L; }
783 void setSubStmt(Stmt *SS) { SubStmt = SS; }
785 SourceLocation getLocStart() const LLVM_READONLY { return IdentLoc; }
786 SourceLocation getLocEnd() const LLVM_READONLY { return SubStmt->getLocEnd();}
788 child_range children() { return child_range(&SubStmt, &SubStmt+1); }
790 static bool classof(const Stmt *T) {
791 return T->getStmtClass() == LabelStmtClass;
796 /// \brief Represents an attribute applied to a statement.
798 /// Represents an attribute applied to a statement. For example:
799 /// [[omp::for(...)]] for (...) { ... }
801 class AttributedStmt : public Stmt {
803 SourceLocation AttrLoc;
805 const Attr *Attrs[1];
807 friend class ASTStmtReader;
809 AttributedStmt(SourceLocation Loc, ArrayRef<const Attr*> Attrs, Stmt *SubStmt)
810 : Stmt(AttributedStmtClass), SubStmt(SubStmt), AttrLoc(Loc),
811 NumAttrs(Attrs.size()) {
812 memcpy(this->Attrs, Attrs.data(), Attrs.size() * sizeof(Attr*));
815 explicit AttributedStmt(EmptyShell Empty, unsigned NumAttrs)
816 : Stmt(AttributedStmtClass, Empty), NumAttrs(NumAttrs) {
817 memset(Attrs, 0, NumAttrs * sizeof(Attr*));
821 static AttributedStmt *Create(const ASTContext &C, SourceLocation Loc,
822 ArrayRef<const Attr*> Attrs, Stmt *SubStmt);
823 // \brief Build an empty attributed statement.
824 static AttributedStmt *CreateEmpty(const ASTContext &C, unsigned NumAttrs);
826 SourceLocation getAttrLoc() const { return AttrLoc; }
827 ArrayRef<const Attr*> getAttrs() const {
828 return ArrayRef<const Attr*>(Attrs, NumAttrs);
830 Stmt *getSubStmt() { return SubStmt; }
831 const Stmt *getSubStmt() const { return SubStmt; }
833 SourceLocation getLocStart() const LLVM_READONLY { return AttrLoc; }
834 SourceLocation getLocEnd() const LLVM_READONLY { return SubStmt->getLocEnd();}
836 child_range children() { return child_range(&SubStmt, &SubStmt + 1); }
838 static bool classof(const Stmt *T) {
839 return T->getStmtClass() == AttributedStmtClass;
844 /// IfStmt - This represents an if/then/else.
846 class IfStmt : public Stmt {
847 enum { VAR, COND, THEN, ELSE, END_EXPR };
848 Stmt* SubExprs[END_EXPR];
850 SourceLocation IfLoc;
851 SourceLocation ElseLoc;
854 IfStmt(const ASTContext &C, SourceLocation IL, VarDecl *var, Expr *cond,
855 Stmt *then, SourceLocation EL = SourceLocation(), Stmt *elsev = 0);
857 /// \brief Build an empty if/then/else statement
858 explicit IfStmt(EmptyShell Empty) : Stmt(IfStmtClass, Empty) { }
860 /// \brief Retrieve the variable declared in this "if" statement, if any.
862 /// In the following example, "x" is the condition variable.
864 /// if (int x = foo()) {
865 /// printf("x is %d", x);
868 VarDecl *getConditionVariable() const;
869 void setConditionVariable(const ASTContext &C, VarDecl *V);
871 /// If this IfStmt has a condition variable, return the faux DeclStmt
872 /// associated with the creation of that condition variable.
873 const DeclStmt *getConditionVariableDeclStmt() const {
874 return reinterpret_cast<DeclStmt*>(SubExprs[VAR]);
877 const Expr *getCond() const { return reinterpret_cast<Expr*>(SubExprs[COND]);}
878 void setCond(Expr *E) { SubExprs[COND] = reinterpret_cast<Stmt *>(E); }
879 const Stmt *getThen() const { return SubExprs[THEN]; }
880 void setThen(Stmt *S) { SubExprs[THEN] = S; }
881 const Stmt *getElse() const { return SubExprs[ELSE]; }
882 void setElse(Stmt *S) { SubExprs[ELSE] = S; }
884 Expr *getCond() { return reinterpret_cast<Expr*>(SubExprs[COND]); }
885 Stmt *getThen() { return SubExprs[THEN]; }
886 Stmt *getElse() { return SubExprs[ELSE]; }
888 SourceLocation getIfLoc() const { return IfLoc; }
889 void setIfLoc(SourceLocation L) { IfLoc = L; }
890 SourceLocation getElseLoc() const { return ElseLoc; }
891 void setElseLoc(SourceLocation L) { ElseLoc = L; }
893 SourceLocation getLocStart() const LLVM_READONLY { return IfLoc; }
894 SourceLocation getLocEnd() const LLVM_READONLY {
896 return SubExprs[ELSE]->getLocEnd();
898 return SubExprs[THEN]->getLocEnd();
901 // Iterators over subexpressions. The iterators will include iterating
902 // over the initialization expression referenced by the condition variable.
903 child_range children() {
904 return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR);
907 static bool classof(const Stmt *T) {
908 return T->getStmtClass() == IfStmtClass;
912 /// SwitchStmt - This represents a 'switch' stmt.
914 class SwitchStmt : public Stmt {
915 enum { VAR, COND, BODY, END_EXPR };
916 Stmt* SubExprs[END_EXPR];
917 // This points to a linked list of case and default statements.
918 SwitchCase *FirstCase;
919 SourceLocation SwitchLoc;
921 /// If the SwitchStmt is a switch on an enum value, this records whether
922 /// all the enum values were covered by CaseStmts. This value is meant to
923 /// be a hint for possible clients.
924 unsigned AllEnumCasesCovered : 1;
927 SwitchStmt(const ASTContext &C, VarDecl *Var, Expr *cond);
929 /// \brief Build a empty switch statement.
930 explicit SwitchStmt(EmptyShell Empty) : Stmt(SwitchStmtClass, Empty) { }
932 /// \brief Retrieve the variable declared in this "switch" statement, if any.
934 /// In the following example, "x" is the condition variable.
936 /// switch (int x = foo()) {
941 VarDecl *getConditionVariable() const;
942 void setConditionVariable(const ASTContext &C, VarDecl *V);
944 /// If this SwitchStmt has a condition variable, return the faux DeclStmt
945 /// associated with the creation of that condition variable.
946 const DeclStmt *getConditionVariableDeclStmt() const {
947 return reinterpret_cast<DeclStmt*>(SubExprs[VAR]);
950 const Expr *getCond() const { return reinterpret_cast<Expr*>(SubExprs[COND]);}
951 const Stmt *getBody() const { return SubExprs[BODY]; }
952 const SwitchCase *getSwitchCaseList() const { return FirstCase; }
954 Expr *getCond() { return reinterpret_cast<Expr*>(SubExprs[COND]);}
955 void setCond(Expr *E) { SubExprs[COND] = reinterpret_cast<Stmt *>(E); }
956 Stmt *getBody() { return SubExprs[BODY]; }
957 void setBody(Stmt *S) { SubExprs[BODY] = S; }
958 SwitchCase *getSwitchCaseList() { return FirstCase; }
960 /// \brief Set the case list for this switch statement.
961 void setSwitchCaseList(SwitchCase *SC) { FirstCase = SC; }
963 SourceLocation getSwitchLoc() const { return SwitchLoc; }
964 void setSwitchLoc(SourceLocation L) { SwitchLoc = L; }
966 void setBody(Stmt *S, SourceLocation SL) {
970 void addSwitchCase(SwitchCase *SC) {
971 assert(!SC->getNextSwitchCase()
972 && "case/default already added to a switch");
973 SC->setNextSwitchCase(FirstCase);
977 /// Set a flag in the SwitchStmt indicating that if the 'switch (X)' is a
978 /// switch over an enum value then all cases have been explicitly covered.
979 void setAllEnumCasesCovered() {
980 AllEnumCasesCovered = 1;
983 /// Returns true if the SwitchStmt is a switch of an enum value and all cases
984 /// have been explicitly covered.
985 bool isAllEnumCasesCovered() const {
986 return (bool) AllEnumCasesCovered;
989 SourceLocation getLocStart() const LLVM_READONLY { return SwitchLoc; }
990 SourceLocation getLocEnd() const LLVM_READONLY {
991 return SubExprs[BODY]->getLocEnd();
995 child_range children() {
996 return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR);
999 static bool classof(const Stmt *T) {
1000 return T->getStmtClass() == SwitchStmtClass;
1005 /// WhileStmt - This represents a 'while' stmt.
1007 class WhileStmt : public Stmt {
1008 enum { VAR, COND, BODY, END_EXPR };
1009 Stmt* SubExprs[END_EXPR];
1010 SourceLocation WhileLoc;
1012 WhileStmt(const ASTContext &C, VarDecl *Var, Expr *cond, Stmt *body,
1015 /// \brief Build an empty while statement.
1016 explicit WhileStmt(EmptyShell Empty) : Stmt(WhileStmtClass, Empty) { }
1018 /// \brief Retrieve the variable declared in this "while" statement, if any.
1020 /// In the following example, "x" is the condition variable.
1022 /// while (int x = random()) {
1026 VarDecl *getConditionVariable() const;
1027 void setConditionVariable(const ASTContext &C, VarDecl *V);
1029 /// If this WhileStmt has a condition variable, return the faux DeclStmt
1030 /// associated with the creation of that condition variable.
1031 const DeclStmt *getConditionVariableDeclStmt() const {
1032 return reinterpret_cast<DeclStmt*>(SubExprs[VAR]);
1035 Expr *getCond() { return reinterpret_cast<Expr*>(SubExprs[COND]); }
1036 const Expr *getCond() const { return reinterpret_cast<Expr*>(SubExprs[COND]);}
1037 void setCond(Expr *E) { SubExprs[COND] = reinterpret_cast<Stmt*>(E); }
1038 Stmt *getBody() { return SubExprs[BODY]; }
1039 const Stmt *getBody() const { return SubExprs[BODY]; }
1040 void setBody(Stmt *S) { SubExprs[BODY] = S; }
1042 SourceLocation getWhileLoc() const { return WhileLoc; }
1043 void setWhileLoc(SourceLocation L) { WhileLoc = L; }
1045 SourceLocation getLocStart() const LLVM_READONLY { return WhileLoc; }
1046 SourceLocation getLocEnd() const LLVM_READONLY {
1047 return SubExprs[BODY]->getLocEnd();
1050 static bool classof(const Stmt *T) {
1051 return T->getStmtClass() == WhileStmtClass;
1055 child_range children() {
1056 return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR);
1060 /// DoStmt - This represents a 'do/while' stmt.
1062 class DoStmt : public Stmt {
1063 enum { BODY, COND, END_EXPR };
1064 Stmt* SubExprs[END_EXPR];
1065 SourceLocation DoLoc;
1066 SourceLocation WhileLoc;
1067 SourceLocation RParenLoc; // Location of final ')' in do stmt condition.
1070 DoStmt(Stmt *body, Expr *cond, SourceLocation DL, SourceLocation WL,
1072 : Stmt(DoStmtClass), DoLoc(DL), WhileLoc(WL), RParenLoc(RP) {
1073 SubExprs[COND] = reinterpret_cast<Stmt*>(cond);
1074 SubExprs[BODY] = body;
1077 /// \brief Build an empty do-while statement.
1078 explicit DoStmt(EmptyShell Empty) : Stmt(DoStmtClass, Empty) { }
1080 Expr *getCond() { return reinterpret_cast<Expr*>(SubExprs[COND]); }
1081 const Expr *getCond() const { return reinterpret_cast<Expr*>(SubExprs[COND]);}
1082 void setCond(Expr *E) { SubExprs[COND] = reinterpret_cast<Stmt*>(E); }
1083 Stmt *getBody() { return SubExprs[BODY]; }
1084 const Stmt *getBody() const { return SubExprs[BODY]; }
1085 void setBody(Stmt *S) { SubExprs[BODY] = S; }
1087 SourceLocation getDoLoc() const { return DoLoc; }
1088 void setDoLoc(SourceLocation L) { DoLoc = L; }
1089 SourceLocation getWhileLoc() const { return WhileLoc; }
1090 void setWhileLoc(SourceLocation L) { WhileLoc = L; }
1092 SourceLocation getRParenLoc() const { return RParenLoc; }
1093 void setRParenLoc(SourceLocation L) { RParenLoc = L; }
1095 SourceLocation getLocStart() const LLVM_READONLY { return DoLoc; }
1096 SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; }
1098 static bool classof(const Stmt *T) {
1099 return T->getStmtClass() == DoStmtClass;
1103 child_range children() {
1104 return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR);
1109 /// ForStmt - This represents a 'for (init;cond;inc)' stmt. Note that any of
1110 /// the init/cond/inc parts of the ForStmt will be null if they were not
1111 /// specified in the source.
1113 class ForStmt : public Stmt {
1114 enum { INIT, CONDVAR, COND, INC, BODY, END_EXPR };
1115 Stmt* SubExprs[END_EXPR]; // SubExprs[INIT] is an expression or declstmt.
1116 SourceLocation ForLoc;
1117 SourceLocation LParenLoc, RParenLoc;
1120 ForStmt(const ASTContext &C, Stmt *Init, Expr *Cond, VarDecl *condVar,
1121 Expr *Inc, Stmt *Body, SourceLocation FL, SourceLocation LP,
1124 /// \brief Build an empty for statement.
1125 explicit ForStmt(EmptyShell Empty) : Stmt(ForStmtClass, Empty) { }
1127 Stmt *getInit() { return SubExprs[INIT]; }
1129 /// \brief Retrieve the variable declared in this "for" statement, if any.
1131 /// In the following example, "y" is the condition variable.
1133 /// for (int x = random(); int y = mangle(x); ++x) {
1137 VarDecl *getConditionVariable() const;
1138 void setConditionVariable(const ASTContext &C, VarDecl *V);
1140 /// If this ForStmt has a condition variable, return the faux DeclStmt
1141 /// associated with the creation of that condition variable.
1142 const DeclStmt *getConditionVariableDeclStmt() const {
1143 return reinterpret_cast<DeclStmt*>(SubExprs[CONDVAR]);
1146 Expr *getCond() { return reinterpret_cast<Expr*>(SubExprs[COND]); }
1147 Expr *getInc() { return reinterpret_cast<Expr*>(SubExprs[INC]); }
1148 Stmt *getBody() { return SubExprs[BODY]; }
1150 const Stmt *getInit() const { return SubExprs[INIT]; }
1151 const Expr *getCond() const { return reinterpret_cast<Expr*>(SubExprs[COND]);}
1152 const Expr *getInc() const { return reinterpret_cast<Expr*>(SubExprs[INC]); }
1153 const Stmt *getBody() const { return SubExprs[BODY]; }
1155 void setInit(Stmt *S) { SubExprs[INIT] = S; }
1156 void setCond(Expr *E) { SubExprs[COND] = reinterpret_cast<Stmt*>(E); }
1157 void setInc(Expr *E) { SubExprs[INC] = reinterpret_cast<Stmt*>(E); }
1158 void setBody(Stmt *S) { SubExprs[BODY] = S; }
1160 SourceLocation getForLoc() const { return ForLoc; }
1161 void setForLoc(SourceLocation L) { ForLoc = L; }
1162 SourceLocation getLParenLoc() const { return LParenLoc; }
1163 void setLParenLoc(SourceLocation L) { LParenLoc = L; }
1164 SourceLocation getRParenLoc() const { return RParenLoc; }
1165 void setRParenLoc(SourceLocation L) { RParenLoc = L; }
1167 SourceLocation getLocStart() const LLVM_READONLY { return ForLoc; }
1168 SourceLocation getLocEnd() const LLVM_READONLY {
1169 return SubExprs[BODY]->getLocEnd();
1172 static bool classof(const Stmt *T) {
1173 return T->getStmtClass() == ForStmtClass;
1177 child_range children() {
1178 return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR);
1182 /// GotoStmt - This represents a direct goto.
1184 class GotoStmt : public Stmt {
1186 SourceLocation GotoLoc;
1187 SourceLocation LabelLoc;
1189 GotoStmt(LabelDecl *label, SourceLocation GL, SourceLocation LL)
1190 : Stmt(GotoStmtClass), Label(label), GotoLoc(GL), LabelLoc(LL) {}
1192 /// \brief Build an empty goto statement.
1193 explicit GotoStmt(EmptyShell Empty) : Stmt(GotoStmtClass, Empty) { }
1195 LabelDecl *getLabel() const { return Label; }
1196 void setLabel(LabelDecl *D) { Label = D; }
1198 SourceLocation getGotoLoc() const { return GotoLoc; }
1199 void setGotoLoc(SourceLocation L) { GotoLoc = L; }
1200 SourceLocation getLabelLoc() const { return LabelLoc; }
1201 void setLabelLoc(SourceLocation L) { LabelLoc = L; }
1203 SourceLocation getLocStart() const LLVM_READONLY { return GotoLoc; }
1204 SourceLocation getLocEnd() const LLVM_READONLY { return LabelLoc; }
1206 static bool classof(const Stmt *T) {
1207 return T->getStmtClass() == GotoStmtClass;
1211 child_range children() { return child_range(); }
1214 /// IndirectGotoStmt - This represents an indirect goto.
1216 class IndirectGotoStmt : public Stmt {
1217 SourceLocation GotoLoc;
1218 SourceLocation StarLoc;
1221 IndirectGotoStmt(SourceLocation gotoLoc, SourceLocation starLoc,
1223 : Stmt(IndirectGotoStmtClass), GotoLoc(gotoLoc), StarLoc(starLoc),
1224 Target((Stmt*)target) {}
1226 /// \brief Build an empty indirect goto statement.
1227 explicit IndirectGotoStmt(EmptyShell Empty)
1228 : Stmt(IndirectGotoStmtClass, Empty) { }
1230 void setGotoLoc(SourceLocation L) { GotoLoc = L; }
1231 SourceLocation getGotoLoc() const { return GotoLoc; }
1232 void setStarLoc(SourceLocation L) { StarLoc = L; }
1233 SourceLocation getStarLoc() const { return StarLoc; }
1235 Expr *getTarget() { return reinterpret_cast<Expr*>(Target); }
1236 const Expr *getTarget() const {return reinterpret_cast<const Expr*>(Target);}
1237 void setTarget(Expr *E) { Target = reinterpret_cast<Stmt*>(E); }
1239 /// getConstantTarget - Returns the fixed target of this indirect
1240 /// goto, if one exists.
1241 LabelDecl *getConstantTarget();
1242 const LabelDecl *getConstantTarget() const {
1243 return const_cast<IndirectGotoStmt*>(this)->getConstantTarget();
1246 SourceLocation getLocStart() const LLVM_READONLY { return GotoLoc; }
1247 SourceLocation getLocEnd() const LLVM_READONLY { return Target->getLocEnd(); }
1249 static bool classof(const Stmt *T) {
1250 return T->getStmtClass() == IndirectGotoStmtClass;
1254 child_range children() { return child_range(&Target, &Target+1); }
1258 /// ContinueStmt - This represents a continue.
1260 class ContinueStmt : public Stmt {
1261 SourceLocation ContinueLoc;
1263 ContinueStmt(SourceLocation CL) : Stmt(ContinueStmtClass), ContinueLoc(CL) {}
1265 /// \brief Build an empty continue statement.
1266 explicit ContinueStmt(EmptyShell Empty) : Stmt(ContinueStmtClass, Empty) { }
1268 SourceLocation getContinueLoc() const { return ContinueLoc; }
1269 void setContinueLoc(SourceLocation L) { ContinueLoc = L; }
1271 SourceLocation getLocStart() const LLVM_READONLY { return ContinueLoc; }
1272 SourceLocation getLocEnd() const LLVM_READONLY { return ContinueLoc; }
1274 static bool classof(const Stmt *T) {
1275 return T->getStmtClass() == ContinueStmtClass;
1279 child_range children() { return child_range(); }
1282 /// BreakStmt - This represents a break.
1284 class BreakStmt : public Stmt {
1285 SourceLocation BreakLoc;
1287 BreakStmt(SourceLocation BL) : Stmt(BreakStmtClass), BreakLoc(BL) {}
1289 /// \brief Build an empty break statement.
1290 explicit BreakStmt(EmptyShell Empty) : Stmt(BreakStmtClass, Empty) { }
1292 SourceLocation getBreakLoc() const { return BreakLoc; }
1293 void setBreakLoc(SourceLocation L) { BreakLoc = L; }
1295 SourceLocation getLocStart() const LLVM_READONLY { return BreakLoc; }
1296 SourceLocation getLocEnd() const LLVM_READONLY { return BreakLoc; }
1298 static bool classof(const Stmt *T) {
1299 return T->getStmtClass() == BreakStmtClass;
1303 child_range children() { return child_range(); }
1307 /// ReturnStmt - This represents a return, optionally of an expression:
1311 /// Note that GCC allows return with no argument in a function declared to
1312 /// return a value, and it allows returning a value in functions declared to
1313 /// return void. We explicitly model this in the AST, which means you can't
1314 /// depend on the return type of the function and the presence of an argument.
1316 class ReturnStmt : public Stmt {
1318 SourceLocation RetLoc;
1319 const VarDecl *NRVOCandidate;
1322 ReturnStmt(SourceLocation RL)
1323 : Stmt(ReturnStmtClass), RetExpr(0), RetLoc(RL), NRVOCandidate(0) { }
1325 ReturnStmt(SourceLocation RL, Expr *E, const VarDecl *NRVOCandidate)
1326 : Stmt(ReturnStmtClass), RetExpr((Stmt*) E), RetLoc(RL),
1327 NRVOCandidate(NRVOCandidate) {}
1329 /// \brief Build an empty return expression.
1330 explicit ReturnStmt(EmptyShell Empty) : Stmt(ReturnStmtClass, Empty) { }
1332 const Expr *getRetValue() const;
1333 Expr *getRetValue();
1334 void setRetValue(Expr *E) { RetExpr = reinterpret_cast<Stmt*>(E); }
1336 SourceLocation getReturnLoc() const { return RetLoc; }
1337 void setReturnLoc(SourceLocation L) { RetLoc = L; }
1339 /// \brief Retrieve the variable that might be used for the named return
1340 /// value optimization.
1342 /// The optimization itself can only be performed if the variable is
1343 /// also marked as an NRVO object.
1344 const VarDecl *getNRVOCandidate() const { return NRVOCandidate; }
1345 void setNRVOCandidate(const VarDecl *Var) { NRVOCandidate = Var; }
1347 SourceLocation getLocStart() const LLVM_READONLY { return RetLoc; }
1348 SourceLocation getLocEnd() const LLVM_READONLY {
1349 return RetExpr ? RetExpr->getLocEnd() : RetLoc;
1352 static bool classof(const Stmt *T) {
1353 return T->getStmtClass() == ReturnStmtClass;
1357 child_range children() {
1358 if (RetExpr) return child_range(&RetExpr, &RetExpr+1);
1359 return child_range();
1363 /// AsmStmt is the base class for GCCAsmStmt and MSAsmStmt.
1365 class AsmStmt : public Stmt {
1367 SourceLocation AsmLoc;
1368 /// \brief True if the assembly statement does not have any input or output
1372 /// \brief If true, treat this inline assembly as having side effects.
1373 /// This assembly statement should not be optimized, deleted or moved.
1376 unsigned NumOutputs;
1378 unsigned NumClobbers;
1382 AsmStmt(StmtClass SC, SourceLocation asmloc, bool issimple, bool isvolatile,
1383 unsigned numoutputs, unsigned numinputs, unsigned numclobbers) :
1384 Stmt (SC), AsmLoc(asmloc), IsSimple(issimple), IsVolatile(isvolatile),
1385 NumOutputs(numoutputs), NumInputs(numinputs), NumClobbers(numclobbers) { }
1387 friend class ASTStmtReader;
1390 /// \brief Build an empty inline-assembly statement.
1391 explicit AsmStmt(StmtClass SC, EmptyShell Empty) :
1392 Stmt(SC, Empty), Exprs(0) { }
1394 SourceLocation getAsmLoc() const { return AsmLoc; }
1395 void setAsmLoc(SourceLocation L) { AsmLoc = L; }
1397 bool isSimple() const { return IsSimple; }
1398 void setSimple(bool V) { IsSimple = V; }
1400 bool isVolatile() const { return IsVolatile; }
1401 void setVolatile(bool V) { IsVolatile = V; }
1403 SourceLocation getLocStart() const LLVM_READONLY { return SourceLocation(); }
1404 SourceLocation getLocEnd() const LLVM_READONLY { return SourceLocation(); }
1406 //===--- Asm String Analysis ---===//
1408 /// Assemble final IR asm string.
1409 std::string generateAsmString(const ASTContext &C) const;
1411 //===--- Output operands ---===//
1413 unsigned getNumOutputs() const { return NumOutputs; }
1415 /// getOutputConstraint - Return the constraint string for the specified
1416 /// output operand. All output constraints are known to be non-empty (either
1418 StringRef getOutputConstraint(unsigned i) const;
1420 /// isOutputPlusConstraint - Return true if the specified output constraint
1421 /// is a "+" constraint (which is both an input and an output) or false if it
1422 /// is an "=" constraint (just an output).
1423 bool isOutputPlusConstraint(unsigned i) const {
1424 return getOutputConstraint(i)[0] == '+';
1427 const Expr *getOutputExpr(unsigned i) const;
1429 /// getNumPlusOperands - Return the number of output operands that have a "+"
1431 unsigned getNumPlusOperands() const;
1433 //===--- Input operands ---===//
1435 unsigned getNumInputs() const { return NumInputs; }
1437 /// getInputConstraint - Return the specified input constraint. Unlike output
1438 /// constraints, these can be empty.
1439 StringRef getInputConstraint(unsigned i) const;
1441 const Expr *getInputExpr(unsigned i) const;
1443 //===--- Other ---===//
1445 unsigned getNumClobbers() const { return NumClobbers; }
1446 StringRef getClobber(unsigned i) const;
1448 static bool classof(const Stmt *T) {
1449 return T->getStmtClass() == GCCAsmStmtClass ||
1450 T->getStmtClass() == MSAsmStmtClass;
1453 // Input expr iterators.
1455 typedef ExprIterator inputs_iterator;
1456 typedef ConstExprIterator const_inputs_iterator;
1458 inputs_iterator begin_inputs() {
1459 return &Exprs[0] + NumOutputs;
1462 inputs_iterator end_inputs() {
1463 return &Exprs[0] + NumOutputs + NumInputs;
1466 const_inputs_iterator begin_inputs() const {
1467 return &Exprs[0] + NumOutputs;
1470 const_inputs_iterator end_inputs() const {
1471 return &Exprs[0] + NumOutputs + NumInputs;
1474 // Output expr iterators.
1476 typedef ExprIterator outputs_iterator;
1477 typedef ConstExprIterator const_outputs_iterator;
1479 outputs_iterator begin_outputs() {
1482 outputs_iterator end_outputs() {
1483 return &Exprs[0] + NumOutputs;
1486 const_outputs_iterator begin_outputs() const {
1489 const_outputs_iterator end_outputs() const {
1490 return &Exprs[0] + NumOutputs;
1493 child_range children() {
1494 return child_range(&Exprs[0], &Exprs[0] + NumOutputs + NumInputs);
1498 /// This represents a GCC inline-assembly statement extension.
1500 class GCCAsmStmt : public AsmStmt {
1501 SourceLocation RParenLoc;
1502 StringLiteral *AsmStr;
1504 // FIXME: If we wanted to, we could allocate all of these in one big array.
1505 StringLiteral **Constraints;
1506 StringLiteral **Clobbers;
1507 IdentifierInfo **Names;
1509 friend class ASTStmtReader;
1512 GCCAsmStmt(const ASTContext &C, SourceLocation asmloc, bool issimple,
1513 bool isvolatile, unsigned numoutputs, unsigned numinputs,
1514 IdentifierInfo **names, StringLiteral **constraints, Expr **exprs,
1515 StringLiteral *asmstr, unsigned numclobbers,
1516 StringLiteral **clobbers, SourceLocation rparenloc);
1518 /// \brief Build an empty inline-assembly statement.
1519 explicit GCCAsmStmt(EmptyShell Empty) : AsmStmt(GCCAsmStmtClass, Empty),
1520 Constraints(0), Clobbers(0), Names(0) { }
1522 SourceLocation getRParenLoc() const { return RParenLoc; }
1523 void setRParenLoc(SourceLocation L) { RParenLoc = L; }
1525 //===--- Asm String Analysis ---===//
1527 const StringLiteral *getAsmString() const { return AsmStr; }
1528 StringLiteral *getAsmString() { return AsmStr; }
1529 void setAsmString(StringLiteral *E) { AsmStr = E; }
1531 /// AsmStringPiece - this is part of a decomposed asm string specification
1532 /// (for use with the AnalyzeAsmString function below). An asm string is
1533 /// considered to be a concatenation of these parts.
1534 class AsmStringPiece {
1537 String, // String in .ll asm string form, "$" -> "$$" and "%%" -> "%".
1538 Operand // Operand reference, with optional modifier %c4.
1545 AsmStringPiece(const std::string &S) : MyKind(String), Str(S) {}
1546 AsmStringPiece(unsigned OpNo, char Modifier)
1547 : MyKind(Operand), Str(), OperandNo(OpNo) {
1551 bool isString() const { return MyKind == String; }
1552 bool isOperand() const { return MyKind == Operand; }
1554 const std::string &getString() const {
1559 unsigned getOperandNo() const {
1560 assert(isOperand());
1564 /// getModifier - Get the modifier for this operand, if present. This
1565 /// returns '\0' if there was no modifier.
1566 char getModifier() const {
1567 assert(isOperand());
1572 /// AnalyzeAsmString - Analyze the asm string of the current asm, decomposing
1573 /// it into pieces. If the asm string is erroneous, emit errors and return
1574 /// true, otherwise return false. This handles canonicalization and
1575 /// translation of strings from GCC syntax to LLVM IR syntax, and handles
1576 //// flattening of named references like %[foo] to Operand AsmStringPiece's.
1577 unsigned AnalyzeAsmString(SmallVectorImpl<AsmStringPiece> &Pieces,
1578 const ASTContext &C, unsigned &DiagOffs) const;
1580 /// Assemble final IR asm string.
1581 std::string generateAsmString(const ASTContext &C) const;
1583 //===--- Output operands ---===//
1585 IdentifierInfo *getOutputIdentifier(unsigned i) const {
1589 StringRef getOutputName(unsigned i) const {
1590 if (IdentifierInfo *II = getOutputIdentifier(i))
1591 return II->getName();
1596 StringRef getOutputConstraint(unsigned i) const;
1598 const StringLiteral *getOutputConstraintLiteral(unsigned i) const {
1599 return Constraints[i];
1601 StringLiteral *getOutputConstraintLiteral(unsigned i) {
1602 return Constraints[i];
1605 Expr *getOutputExpr(unsigned i);
1607 const Expr *getOutputExpr(unsigned i) const {
1608 return const_cast<GCCAsmStmt*>(this)->getOutputExpr(i);
1611 //===--- Input operands ---===//
1613 IdentifierInfo *getInputIdentifier(unsigned i) const {
1614 return Names[i + NumOutputs];
1617 StringRef getInputName(unsigned i) const {
1618 if (IdentifierInfo *II = getInputIdentifier(i))
1619 return II->getName();
1624 StringRef getInputConstraint(unsigned i) const;
1626 const StringLiteral *getInputConstraintLiteral(unsigned i) const {
1627 return Constraints[i + NumOutputs];
1629 StringLiteral *getInputConstraintLiteral(unsigned i) {
1630 return Constraints[i + NumOutputs];
1633 Expr *getInputExpr(unsigned i);
1634 void setInputExpr(unsigned i, Expr *E);
1636 const Expr *getInputExpr(unsigned i) const {
1637 return const_cast<GCCAsmStmt*>(this)->getInputExpr(i);
1641 void setOutputsAndInputsAndClobbers(const ASTContext &C,
1642 IdentifierInfo **Names,
1643 StringLiteral **Constraints,
1645 unsigned NumOutputs,
1647 StringLiteral **Clobbers,
1648 unsigned NumClobbers);
1651 //===--- Other ---===//
1653 /// getNamedOperand - Given a symbolic operand reference like %[foo],
1654 /// translate this into a numeric value needed to reference the same operand.
1655 /// This returns -1 if the operand name is invalid.
1656 int getNamedOperand(StringRef SymbolicName) const;
1658 StringRef getClobber(unsigned i) const;
1659 StringLiteral *getClobberStringLiteral(unsigned i) { return Clobbers[i]; }
1660 const StringLiteral *getClobberStringLiteral(unsigned i) const {
1664 SourceLocation getLocStart() const LLVM_READONLY { return AsmLoc; }
1665 SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; }
1667 static bool classof(const Stmt *T) {
1668 return T->getStmtClass() == GCCAsmStmtClass;
1672 /// This represents a Microsoft inline-assembly statement extension.
1674 class MSAsmStmt : public AsmStmt {
1675 SourceLocation LBraceLoc, EndLoc;
1678 unsigned NumAsmToks;
1681 StringRef *Constraints;
1682 StringRef *Clobbers;
1684 friend class ASTStmtReader;
1687 MSAsmStmt(const ASTContext &C, SourceLocation asmloc,
1688 SourceLocation lbraceloc, bool issimple, bool isvolatile,
1689 ArrayRef<Token> asmtoks, unsigned numoutputs, unsigned numinputs,
1690 ArrayRef<StringRef> constraints,
1691 ArrayRef<Expr*> exprs, StringRef asmstr,
1692 ArrayRef<StringRef> clobbers, SourceLocation endloc);
1694 /// \brief Build an empty MS-style inline-assembly statement.
1695 explicit MSAsmStmt(EmptyShell Empty) : AsmStmt(MSAsmStmtClass, Empty),
1696 NumAsmToks(0), AsmToks(0), Constraints(0), Clobbers(0) { }
1698 SourceLocation getLBraceLoc() const { return LBraceLoc; }
1699 void setLBraceLoc(SourceLocation L) { LBraceLoc = L; }
1700 SourceLocation getEndLoc() const { return EndLoc; }
1701 void setEndLoc(SourceLocation L) { EndLoc = L; }
1703 bool hasBraces() const { return LBraceLoc.isValid(); }
1705 unsigned getNumAsmToks() { return NumAsmToks; }
1706 Token *getAsmToks() { return AsmToks; }
1708 //===--- Asm String Analysis ---===//
1709 StringRef getAsmString() const { return AsmStr; }
1711 /// Assemble final IR asm string.
1712 std::string generateAsmString(const ASTContext &C) const;
1714 //===--- Output operands ---===//
1716 StringRef getOutputConstraint(unsigned i) const {
1717 assert(i < NumOutputs);
1718 return Constraints[i];
1721 Expr *getOutputExpr(unsigned i);
1723 const Expr *getOutputExpr(unsigned i) const {
1724 return const_cast<MSAsmStmt*>(this)->getOutputExpr(i);
1727 //===--- Input operands ---===//
1729 StringRef getInputConstraint(unsigned i) const {
1730 assert(i < NumInputs);
1731 return Constraints[i + NumOutputs];
1734 Expr *getInputExpr(unsigned i);
1735 void setInputExpr(unsigned i, Expr *E);
1737 const Expr *getInputExpr(unsigned i) const {
1738 return const_cast<MSAsmStmt*>(this)->getInputExpr(i);
1741 //===--- Other ---===//
1743 ArrayRef<StringRef> getAllConstraints() const {
1744 return ArrayRef<StringRef>(Constraints, NumInputs + NumOutputs);
1746 ArrayRef<StringRef> getClobbers() const {
1747 return ArrayRef<StringRef>(Clobbers, NumClobbers);
1749 ArrayRef<Expr*> getAllExprs() const {
1750 return ArrayRef<Expr*>(reinterpret_cast<Expr**>(Exprs),
1751 NumInputs + NumOutputs);
1754 StringRef getClobber(unsigned i) const { return getClobbers()[i]; }
1757 void initialize(const ASTContext &C, StringRef AsmString,
1758 ArrayRef<Token> AsmToks, ArrayRef<StringRef> Constraints,
1759 ArrayRef<Expr*> Exprs, ArrayRef<StringRef> Clobbers);
1762 SourceLocation getLocStart() const LLVM_READONLY { return AsmLoc; }
1763 SourceLocation getLocEnd() const LLVM_READONLY { return EndLoc; }
1765 static bool classof(const Stmt *T) {
1766 return T->getStmtClass() == MSAsmStmtClass;
1769 child_range children() {
1770 return child_range(&Exprs[0], &Exprs[0]);
1774 class SEHExceptStmt : public Stmt {
1778 enum { FILTER_EXPR, BLOCK };
1780 SEHExceptStmt(SourceLocation Loc,
1784 friend class ASTReader;
1785 friend class ASTStmtReader;
1786 explicit SEHExceptStmt(EmptyShell E) : Stmt(SEHExceptStmtClass, E) { }
1789 static SEHExceptStmt* Create(const ASTContext &C,
1790 SourceLocation ExceptLoc,
1794 SourceLocation getLocStart() const LLVM_READONLY { return getExceptLoc(); }
1795 SourceLocation getLocEnd() const LLVM_READONLY { return getEndLoc(); }
1797 SourceLocation getExceptLoc() const { return Loc; }
1798 SourceLocation getEndLoc() const { return getBlock()->getLocEnd(); }
1800 Expr *getFilterExpr() const {
1801 return reinterpret_cast<Expr*>(Children[FILTER_EXPR]);
1804 CompoundStmt *getBlock() const {
1805 return cast<CompoundStmt>(Children[BLOCK]);
1808 child_range children() {
1809 return child_range(Children,Children+2);
1812 static bool classof(const Stmt *T) {
1813 return T->getStmtClass() == SEHExceptStmtClass;
1818 class SEHFinallyStmt : public Stmt {
1822 SEHFinallyStmt(SourceLocation Loc,
1825 friend class ASTReader;
1826 friend class ASTStmtReader;
1827 explicit SEHFinallyStmt(EmptyShell E) : Stmt(SEHFinallyStmtClass, E) { }
1830 static SEHFinallyStmt* Create(const ASTContext &C,
1831 SourceLocation FinallyLoc,
1834 SourceLocation getLocStart() const LLVM_READONLY { return getFinallyLoc(); }
1835 SourceLocation getLocEnd() const LLVM_READONLY { return getEndLoc(); }
1837 SourceLocation getFinallyLoc() const { return Loc; }
1838 SourceLocation getEndLoc() const { return Block->getLocEnd(); }
1840 CompoundStmt *getBlock() const { return cast<CompoundStmt>(Block); }
1842 child_range children() {
1843 return child_range(&Block,&Block+1);
1846 static bool classof(const Stmt *T) {
1847 return T->getStmtClass() == SEHFinallyStmtClass;
1852 class SEHTryStmt : public Stmt {
1854 SourceLocation TryLoc;
1857 enum { TRY = 0, HANDLER = 1 };
1859 SEHTryStmt(bool isCXXTry, // true if 'try' otherwise '__try'
1860 SourceLocation TryLoc,
1864 friend class ASTReader;
1865 friend class ASTStmtReader;
1866 explicit SEHTryStmt(EmptyShell E) : Stmt(SEHTryStmtClass, E) { }
1869 static SEHTryStmt* Create(const ASTContext &C, bool isCXXTry,
1870 SourceLocation TryLoc, Stmt *TryBlock,
1873 SourceLocation getLocStart() const LLVM_READONLY { return getTryLoc(); }
1874 SourceLocation getLocEnd() const LLVM_READONLY { return getEndLoc(); }
1876 SourceLocation getTryLoc() const { return TryLoc; }
1877 SourceLocation getEndLoc() const { return Children[HANDLER]->getLocEnd(); }
1879 bool getIsCXXTry() const { return IsCXXTry; }
1881 CompoundStmt* getTryBlock() const {
1882 return cast<CompoundStmt>(Children[TRY]);
1885 Stmt *getHandler() const { return Children[HANDLER]; }
1887 /// Returns 0 if not defined
1888 SEHExceptStmt *getExceptHandler() const;
1889 SEHFinallyStmt *getFinallyHandler() const;
1891 child_range children() {
1892 return child_range(Children,Children+2);
1895 static bool classof(const Stmt *T) {
1896 return T->getStmtClass() == SEHTryStmtClass;
1900 /// \brief This captures a statement into a function. For example, the following
1901 /// pragma annotated compound statement can be represented as a CapturedStmt,
1902 /// and this compound statement is the body of an anonymous outlined function.
1904 /// #pragma omp parallel
1909 class CapturedStmt : public Stmt {
1911 /// \brief The different capture forms: by 'this' or by reference, etc.
1912 enum VariableCaptureKind {
1917 /// \brief Describes the capture of either a variable or 'this'.
1919 llvm::PointerIntPair<VarDecl *, 1, VariableCaptureKind> VarAndKind;
1923 /// \brief Create a new capture.
1925 /// \param Loc The source location associated with this capture.
1927 /// \param Kind The kind of capture (this, ByRef, ...).
1929 /// \param Var The variable being captured, or null if capturing this.
1931 Capture(SourceLocation Loc, VariableCaptureKind Kind, VarDecl *Var = 0)
1932 : VarAndKind(Var, Kind), Loc(Loc) {
1935 assert(Var == 0 && "'this' capture cannot have a variable!");
1938 assert(Var && "capturing by reference must have a variable!");
1943 /// \brief Determine the kind of capture.
1944 VariableCaptureKind getCaptureKind() const { return VarAndKind.getInt(); }
1946 /// \brief Retrieve the source location at which the variable or 'this' was
1948 SourceLocation getLocation() const { return Loc; }
1950 /// \brief Determine whether this capture handles the C++ 'this' pointer.
1951 bool capturesThis() const { return getCaptureKind() == VCK_This; }
1953 /// \brief Determine whether this capture handles a variable.
1954 bool capturesVariable() const { return getCaptureKind() != VCK_This; }
1956 /// \brief Retrieve the declaration of the variable being captured.
1958 /// This operation is only valid if this capture does not capture 'this'.
1959 VarDecl *getCapturedVar() const {
1960 assert(!capturesThis() && "No variable available for 'this' capture");
1961 return VarAndKind.getPointer();
1963 friend class ASTStmtReader;
1967 /// \brief The number of variable captured, including 'this'.
1968 unsigned NumCaptures;
1970 /// \brief The pointer part is the implicit the outlined function and the
1971 /// int part is the captured region kind, 'CR_Default' etc.
1972 llvm::PointerIntPair<CapturedDecl *, 1, CapturedRegionKind> CapDeclAndKind;
1974 /// \brief The record for captured variables, a RecordDecl or CXXRecordDecl.
1975 RecordDecl *TheRecordDecl;
1977 /// \brief Construct a captured statement.
1978 CapturedStmt(Stmt *S, CapturedRegionKind Kind, ArrayRef<Capture> Captures,
1979 ArrayRef<Expr *> CaptureInits, CapturedDecl *CD, RecordDecl *RD);
1981 /// \brief Construct an empty captured statement.
1982 CapturedStmt(EmptyShell Empty, unsigned NumCaptures);
1984 Stmt **getStoredStmts() const {
1985 return reinterpret_cast<Stmt **>(const_cast<CapturedStmt *>(this) + 1);
1988 Capture *getStoredCaptures() const;
1990 void setCapturedStmt(Stmt *S) { getStoredStmts()[NumCaptures] = S; }
1993 static CapturedStmt *Create(const ASTContext &Context, Stmt *S,
1994 CapturedRegionKind Kind,
1995 ArrayRef<Capture> Captures,
1996 ArrayRef<Expr *> CaptureInits,
1997 CapturedDecl *CD, RecordDecl *RD);
1999 static CapturedStmt *CreateDeserialized(const ASTContext &Context,
2000 unsigned NumCaptures);
2002 /// \brief Retrieve the statement being captured.
2003 Stmt *getCapturedStmt() { return getStoredStmts()[NumCaptures]; }
2004 const Stmt *getCapturedStmt() const {
2005 return const_cast<CapturedStmt *>(this)->getCapturedStmt();
2008 /// \brief Retrieve the outlined function declaration.
2009 CapturedDecl *getCapturedDecl() { return CapDeclAndKind.getPointer(); }
2010 const CapturedDecl *getCapturedDecl() const {
2011 return const_cast<CapturedStmt *>(this)->getCapturedDecl();
2014 /// \brief Set the outlined function declaration.
2015 void setCapturedDecl(CapturedDecl *D) {
2016 assert(D && "null CapturedDecl");
2017 CapDeclAndKind.setPointer(D);
2020 /// \brief Retrieve the captured region kind.
2021 CapturedRegionKind getCapturedRegionKind() const {
2022 return CapDeclAndKind.getInt();
2025 /// \brief Set the captured region kind.
2026 void setCapturedRegionKind(CapturedRegionKind Kind) {
2027 CapDeclAndKind.setInt(Kind);
2030 /// \brief Retrieve the record declaration for captured variables.
2031 const RecordDecl *getCapturedRecordDecl() const { return TheRecordDecl; }
2033 /// \brief Set the record declaration for captured variables.
2034 void setCapturedRecordDecl(RecordDecl *D) {
2035 assert(D && "null RecordDecl");
2039 /// \brief True if this variable has been captured.
2040 bool capturesVariable(const VarDecl *Var) const;
2042 /// \brief An iterator that walks over the captures.
2043 typedef Capture *capture_iterator;
2044 typedef const Capture *const_capture_iterator;
2046 /// \brief Retrieve an iterator pointing to the first capture.
2047 capture_iterator capture_begin() { return getStoredCaptures(); }
2048 const_capture_iterator capture_begin() const { return getStoredCaptures(); }
2050 /// \brief Retrieve an iterator pointing past the end of the sequence of
2052 capture_iterator capture_end() const {
2053 return getStoredCaptures() + NumCaptures;
2056 /// \brief Retrieve the number of captures, including 'this'.
2057 unsigned capture_size() const { return NumCaptures; }
2059 /// \brief Iterator that walks over the capture initialization arguments.
2060 typedef Expr **capture_init_iterator;
2062 /// \brief Retrieve the first initialization argument.
2063 capture_init_iterator capture_init_begin() const {
2064 return reinterpret_cast<Expr **>(getStoredStmts());
2067 /// \brief Retrieve the iterator pointing one past the last initialization
2069 capture_init_iterator capture_init_end() const {
2070 return capture_init_begin() + NumCaptures;
2073 SourceLocation getLocStart() const LLVM_READONLY {
2074 return getCapturedStmt()->getLocStart();
2076 SourceLocation getLocEnd() const LLVM_READONLY {
2077 return getCapturedStmt()->getLocEnd();
2079 SourceRange getSourceRange() const LLVM_READONLY {
2080 return getCapturedStmt()->getSourceRange();
2083 static bool classof(const Stmt *T) {
2084 return T->getStmtClass() == CapturedStmtClass;
2087 child_range children();
2089 friend class ASTStmtReader;
2092 } // end namespace clang