1 //===- Stmt.cpp - Statement AST Node Implementation -----------------------===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 // This file implements the Stmt class and statement subclasses.
11 //===----------------------------------------------------------------------===//
13 #include "clang/AST/Stmt.h"
14 #include "clang/AST/ASTContext.h"
15 #include "clang/AST/ASTDiagnostic.h"
16 #include "clang/AST/Decl.h"
17 #include "clang/AST/DeclGroup.h"
18 #include "clang/AST/Expr.h"
19 #include "clang/AST/ExprCXX.h"
20 #include "clang/AST/ExprObjC.h"
21 #include "clang/AST/ExprOpenMP.h"
22 #include "clang/AST/StmtCXX.h"
23 #include "clang/AST/StmtObjC.h"
24 #include "clang/AST/StmtOpenMP.h"
25 #include "clang/AST/Type.h"
26 #include "clang/Basic/CharInfo.h"
27 #include "clang/Basic/LLVM.h"
28 #include "clang/Basic/SourceLocation.h"
29 #include "clang/Basic/TargetInfo.h"
30 #include "clang/Lex/Token.h"
31 #include "llvm/ADT/SmallVector.h"
32 #include "llvm/ADT/StringExtras.h"
33 #include "llvm/ADT/StringRef.h"
34 #include "llvm/Support/Casting.h"
35 #include "llvm/Support/Compiler.h"
36 #include "llvm/Support/ErrorHandling.h"
37 #include "llvm/Support/MathExtras.h"
38 #include "llvm/Support/raw_ostream.h"
44 #include <type_traits>
46 using namespace clang;
48 static struct StmtClassNameTable {
52 } StmtClassInfo[Stmt::lastStmtConstant+1];
54 static StmtClassNameTable &getStmtInfoTableEntry(Stmt::StmtClass E) {
55 static bool Initialized = false;
57 return StmtClassInfo[E];
59 // Initialize the table on the first use.
61 #define ABSTRACT_STMT(STMT)
62 #define STMT(CLASS, PARENT) \
63 StmtClassInfo[(unsigned)Stmt::CLASS##Class].Name = #CLASS; \
64 StmtClassInfo[(unsigned)Stmt::CLASS##Class].Size = sizeof(CLASS);
65 #include "clang/AST/StmtNodes.inc"
67 return StmtClassInfo[E];
70 void *Stmt::operator new(size_t bytes, const ASTContext& C,
72 return ::operator new(bytes, C, alignment);
75 const char *Stmt::getStmtClassName() const {
76 return getStmtInfoTableEntry((StmtClass) StmtBits.sClass).Name;
79 // Check that no statement / expression class is polymorphic. LLVM style RTTI
80 // should be used instead. If absolutely needed an exception can still be added
81 // here by defining the appropriate macro (but please don't do this).
82 #define STMT(CLASS, PARENT) \
83 static_assert(!std::is_polymorphic<CLASS>::value, \
84 #CLASS " should not be polymorphic!");
85 #include "clang/AST/StmtNodes.inc"
87 // Check that no statement / expression class has a non-trival destructor.
88 // Statements and expressions are allocated with the BumpPtrAllocator from
89 // ASTContext and therefore their destructor is not executed.
90 #define STMT(CLASS, PARENT) \
91 static_assert(std::is_trivially_destructible<CLASS>::value, \
92 #CLASS " should be trivially destructible!");
93 // FIXME: InitListExpr is not trivially destructible due to its ASTVector.
94 #define INITLISTEXPR(CLASS, PARENT)
95 #include "clang/AST/StmtNodes.inc"
97 void Stmt::PrintStats() {
98 // Ensure the table is primed.
99 getStmtInfoTableEntry(Stmt::NullStmtClass);
102 llvm::errs() << "\n*** Stmt/Expr Stats:\n";
103 for (int i = 0; i != Stmt::lastStmtConstant+1; i++) {
104 if (StmtClassInfo[i].Name == nullptr) continue;
105 sum += StmtClassInfo[i].Counter;
107 llvm::errs() << " " << sum << " stmts/exprs total.\n";
109 for (int i = 0; i != Stmt::lastStmtConstant+1; i++) {
110 if (StmtClassInfo[i].Name == nullptr) continue;
111 if (StmtClassInfo[i].Counter == 0) continue;
112 llvm::errs() << " " << StmtClassInfo[i].Counter << " "
113 << StmtClassInfo[i].Name << ", " << StmtClassInfo[i].Size
114 << " each (" << StmtClassInfo[i].Counter*StmtClassInfo[i].Size
116 sum += StmtClassInfo[i].Counter*StmtClassInfo[i].Size;
119 llvm::errs() << "Total bytes = " << sum << "\n";
122 void Stmt::addStmtClass(StmtClass s) {
123 ++getStmtInfoTableEntry(s).Counter;
126 bool Stmt::StatisticsEnabled = false;
127 void Stmt::EnableStatistics() {
128 StatisticsEnabled = true;
131 /// Skip no-op (attributed, compound) container stmts and skip captured
132 /// stmt at the top, if \a IgnoreCaptured is true.
133 Stmt *Stmt::IgnoreContainers(bool IgnoreCaptured) {
136 if (auto CapS = dyn_cast_or_null<CapturedStmt>(S))
137 S = CapS->getCapturedStmt();
139 if (auto AS = dyn_cast_or_null<AttributedStmt>(S))
140 S = AS->getSubStmt();
141 else if (auto CS = dyn_cast_or_null<CompoundStmt>(S)) {
151 /// Strip off all label-like statements.
153 /// This will strip off label statements, case statements, attributed
154 /// statements and default statements recursively.
155 const Stmt *Stmt::stripLabelLikeStatements() const {
156 const Stmt *S = this;
158 if (const auto *LS = dyn_cast<LabelStmt>(S))
159 S = LS->getSubStmt();
160 else if (const auto *SC = dyn_cast<SwitchCase>(S))
161 S = SC->getSubStmt();
162 else if (const auto *AS = dyn_cast<AttributedStmt>(S))
163 S = AS->getSubStmt();
174 // These silly little functions have to be static inline to suppress
175 // unused warnings, and they have to be defined to suppress other
177 static good is_good(good) { return good(); }
179 typedef Stmt::child_range children_t();
180 template <class T> good implements_children(children_t T::*) {
183 LLVM_ATTRIBUTE_UNUSED
184 static bad implements_children(children_t Stmt::*) {
188 typedef SourceLocation getBeginLoc_t() const;
189 template <class T> good implements_getBeginLoc(getBeginLoc_t T::*) {
192 LLVM_ATTRIBUTE_UNUSED
193 static bad implements_getBeginLoc(getBeginLoc_t Stmt::*) { return bad(); }
195 typedef SourceLocation getLocEnd_t() const;
196 template <class T> good implements_getEndLoc(getLocEnd_t T::*) {
199 LLVM_ATTRIBUTE_UNUSED
200 static bad implements_getEndLoc(getLocEnd_t Stmt::*) { return bad(); }
202 #define ASSERT_IMPLEMENTS_children(type) \
203 (void) is_good(implements_children(&type::children))
204 #define ASSERT_IMPLEMENTS_getBeginLoc(type) \
205 (void)is_good(implements_getBeginLoc(&type::getBeginLoc))
206 #define ASSERT_IMPLEMENTS_getEndLoc(type) \
207 (void)is_good(implements_getEndLoc(&type::getEndLoc))
211 /// Check whether the various Stmt classes implement their member
213 LLVM_ATTRIBUTE_UNUSED
214 static inline void check_implementations() {
215 #define ABSTRACT_STMT(type)
216 #define STMT(type, base) \
217 ASSERT_IMPLEMENTS_children(type); \
218 ASSERT_IMPLEMENTS_getBeginLoc(type); \
219 ASSERT_IMPLEMENTS_getEndLoc(type);
220 #include "clang/AST/StmtNodes.inc"
223 Stmt::child_range Stmt::children() {
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 static_cast<type*>(this)->children();
230 #include "clang/AST/StmtNodes.inc"
232 llvm_unreachable("unknown statement kind!");
235 // Amusing macro metaprogramming hack: check whether a class provides
236 // a more specific implementation of getSourceRange.
238 // See also Expr.cpp:getExprLoc().
241 /// This implementation is used when a class provides a custom
242 /// implementation of getSourceRange.
243 template <class S, class T>
244 SourceRange getSourceRangeImpl(const Stmt *stmt,
245 SourceRange (T::*v)() const) {
246 return static_cast<const S*>(stmt)->getSourceRange();
249 /// This implementation is used when a class doesn't provide a custom
250 /// implementation of getSourceRange. Overload resolution should pick it over
251 /// the implementation above because it's more specialized according to
252 /// function template partial ordering.
254 SourceRange getSourceRangeImpl(const Stmt *stmt,
255 SourceRange (Stmt::*v)() const) {
256 return SourceRange(static_cast<const S *>(stmt)->getBeginLoc(),
257 static_cast<const S *>(stmt)->getEndLoc());
262 SourceRange Stmt::getSourceRange() const {
263 switch (getStmtClass()) {
264 case Stmt::NoStmtClass: llvm_unreachable("statement without class");
265 #define ABSTRACT_STMT(type)
266 #define STMT(type, base) \
267 case Stmt::type##Class: \
268 return getSourceRangeImpl<type>(this, &type::getSourceRange);
269 #include "clang/AST/StmtNodes.inc"
271 llvm_unreachable("unknown statement kind!");
274 SourceLocation Stmt::getBeginLoc() const {
275 // llvm::errs() << "getBeginLoc() for " << getStmtClassName() << "\n";
276 switch (getStmtClass()) {
277 case Stmt::NoStmtClass: llvm_unreachable("statement without class");
278 #define ABSTRACT_STMT(type)
279 #define STMT(type, base) \
280 case Stmt::type##Class: \
281 return static_cast<const type *>(this)->getBeginLoc();
282 #include "clang/AST/StmtNodes.inc"
284 llvm_unreachable("unknown statement kind");
287 SourceLocation Stmt::getEndLoc() const {
288 switch (getStmtClass()) {
289 case Stmt::NoStmtClass: llvm_unreachable("statement without class");
290 #define ABSTRACT_STMT(type)
291 #define STMT(type, base) \
292 case Stmt::type##Class: \
293 return static_cast<const type *>(this)->getEndLoc();
294 #include "clang/AST/StmtNodes.inc"
296 llvm_unreachable("unknown statement kind");
299 int64_t Stmt::getID(const ASTContext &Context) const {
300 return Context.getAllocator().identifyKnownAlignedObject<Stmt>(this);
303 CompoundStmt::CompoundStmt(ArrayRef<Stmt *> Stmts, SourceLocation LB,
305 : Stmt(CompoundStmtClass), RBraceLoc(RB) {
306 CompoundStmtBits.NumStmts = Stmts.size();
308 CompoundStmtBits.LBraceLoc = LB;
311 void CompoundStmt::setStmts(ArrayRef<Stmt *> Stmts) {
312 assert(CompoundStmtBits.NumStmts == Stmts.size() &&
313 "NumStmts doesn't fit in bits of CompoundStmtBits.NumStmts!");
315 std::copy(Stmts.begin(), Stmts.end(), body_begin());
318 CompoundStmt *CompoundStmt::Create(const ASTContext &C, ArrayRef<Stmt *> Stmts,
319 SourceLocation LB, SourceLocation RB) {
321 C.Allocate(totalSizeToAlloc<Stmt *>(Stmts.size()), alignof(CompoundStmt));
322 return new (Mem) CompoundStmt(Stmts, LB, RB);
325 CompoundStmt *CompoundStmt::CreateEmpty(const ASTContext &C,
328 C.Allocate(totalSizeToAlloc<Stmt *>(NumStmts), alignof(CompoundStmt));
329 CompoundStmt *New = new (Mem) CompoundStmt(EmptyShell());
330 New->CompoundStmtBits.NumStmts = NumStmts;
334 const Expr *ValueStmt::getExprStmt() const {
335 const Stmt *S = this;
337 if (const auto *E = dyn_cast<Expr>(S))
340 if (const auto *LS = dyn_cast<LabelStmt>(S))
341 S = LS->getSubStmt();
342 else if (const auto *AS = dyn_cast<AttributedStmt>(S))
343 S = AS->getSubStmt();
345 llvm_unreachable("unknown kind of ValueStmt");
346 } while (isa<ValueStmt>(S));
351 const char *LabelStmt::getName() const {
352 return getDecl()->getIdentifier()->getNameStart();
355 AttributedStmt *AttributedStmt::Create(const ASTContext &C, SourceLocation Loc,
356 ArrayRef<const Attr*> Attrs,
358 assert(!Attrs.empty() && "Attrs should not be empty");
359 void *Mem = C.Allocate(totalSizeToAlloc<const Attr *>(Attrs.size()),
360 alignof(AttributedStmt));
361 return new (Mem) AttributedStmt(Loc, Attrs, SubStmt);
364 AttributedStmt *AttributedStmt::CreateEmpty(const ASTContext &C,
366 assert(NumAttrs > 0 && "NumAttrs should be greater than zero");
367 void *Mem = C.Allocate(totalSizeToAlloc<const Attr *>(NumAttrs),
368 alignof(AttributedStmt));
369 return new (Mem) AttributedStmt(EmptyShell(), NumAttrs);
372 std::string AsmStmt::generateAsmString(const ASTContext &C) const {
373 if (const auto *gccAsmStmt = dyn_cast<GCCAsmStmt>(this))
374 return gccAsmStmt->generateAsmString(C);
375 if (const auto *msAsmStmt = dyn_cast<MSAsmStmt>(this))
376 return msAsmStmt->generateAsmString(C);
377 llvm_unreachable("unknown asm statement kind!");
380 StringRef AsmStmt::getOutputConstraint(unsigned i) const {
381 if (const auto *gccAsmStmt = dyn_cast<GCCAsmStmt>(this))
382 return gccAsmStmt->getOutputConstraint(i);
383 if (const auto *msAsmStmt = dyn_cast<MSAsmStmt>(this))
384 return msAsmStmt->getOutputConstraint(i);
385 llvm_unreachable("unknown asm statement kind!");
388 const Expr *AsmStmt::getOutputExpr(unsigned i) const {
389 if (const auto *gccAsmStmt = dyn_cast<GCCAsmStmt>(this))
390 return gccAsmStmt->getOutputExpr(i);
391 if (const auto *msAsmStmt = dyn_cast<MSAsmStmt>(this))
392 return msAsmStmt->getOutputExpr(i);
393 llvm_unreachable("unknown asm statement kind!");
396 StringRef AsmStmt::getInputConstraint(unsigned i) const {
397 if (const auto *gccAsmStmt = dyn_cast<GCCAsmStmt>(this))
398 return gccAsmStmt->getInputConstraint(i);
399 if (const auto *msAsmStmt = dyn_cast<MSAsmStmt>(this))
400 return msAsmStmt->getInputConstraint(i);
401 llvm_unreachable("unknown asm statement kind!");
404 const Expr *AsmStmt::getInputExpr(unsigned i) const {
405 if (const auto *gccAsmStmt = dyn_cast<GCCAsmStmt>(this))
406 return gccAsmStmt->getInputExpr(i);
407 if (const auto *msAsmStmt = dyn_cast<MSAsmStmt>(this))
408 return msAsmStmt->getInputExpr(i);
409 llvm_unreachable("unknown asm statement kind!");
412 StringRef AsmStmt::getClobber(unsigned i) const {
413 if (const auto *gccAsmStmt = dyn_cast<GCCAsmStmt>(this))
414 return gccAsmStmt->getClobber(i);
415 if (const auto *msAsmStmt = dyn_cast<MSAsmStmt>(this))
416 return msAsmStmt->getClobber(i);
417 llvm_unreachable("unknown asm statement kind!");
420 /// getNumPlusOperands - Return the number of output operands that have a "+"
422 unsigned AsmStmt::getNumPlusOperands() const {
424 for (unsigned i = 0, e = getNumOutputs(); i != e; ++i)
425 if (isOutputPlusConstraint(i))
430 char GCCAsmStmt::AsmStringPiece::getModifier() const {
431 assert(isOperand() && "Only Operands can have modifiers.");
432 return isLetter(Str[0]) ? Str[0] : '\0';
435 StringRef GCCAsmStmt::getClobber(unsigned i) const {
436 return getClobberStringLiteral(i)->getString();
439 Expr *GCCAsmStmt::getOutputExpr(unsigned i) {
440 return cast<Expr>(Exprs[i]);
443 /// getOutputConstraint - Return the constraint string for the specified
444 /// output operand. All output constraints are known to be non-empty (either
446 StringRef GCCAsmStmt::getOutputConstraint(unsigned i) const {
447 return getOutputConstraintLiteral(i)->getString();
450 Expr *GCCAsmStmt::getInputExpr(unsigned i) {
451 return cast<Expr>(Exprs[i + NumOutputs]);
454 void GCCAsmStmt::setInputExpr(unsigned i, Expr *E) {
455 Exprs[i + NumOutputs] = E;
458 AddrLabelExpr *GCCAsmStmt::getLabelExpr(unsigned i) const {
459 return cast<AddrLabelExpr>(Exprs[i + NumInputs]);
462 StringRef GCCAsmStmt::getLabelName(unsigned i) const {
463 return getLabelExpr(i)->getLabel()->getName();
466 /// getInputConstraint - Return the specified input constraint. Unlike output
467 /// constraints, these can be empty.
468 StringRef GCCAsmStmt::getInputConstraint(unsigned i) const {
469 return getInputConstraintLiteral(i)->getString();
472 void GCCAsmStmt::setOutputsAndInputsAndClobbers(const ASTContext &C,
473 IdentifierInfo **Names,
474 StringLiteral **Constraints,
479 StringLiteral **Clobbers,
480 unsigned NumClobbers) {
481 this->NumOutputs = NumOutputs;
482 this->NumInputs = NumInputs;
483 this->NumClobbers = NumClobbers;
484 this->NumLabels = NumLabels;
485 assert(!(NumOutputs && NumLabels) && "asm goto cannot have outputs");
487 unsigned NumExprs = NumOutputs + NumInputs + NumLabels;
489 C.Deallocate(this->Names);
490 this->Names = new (C) IdentifierInfo*[NumExprs];
491 std::copy(Names, Names + NumExprs, this->Names);
493 C.Deallocate(this->Exprs);
494 this->Exprs = new (C) Stmt*[NumExprs];
495 std::copy(Exprs, Exprs + NumExprs, this->Exprs);
497 unsigned NumConstraints = NumOutputs + NumInputs;
498 C.Deallocate(this->Constraints);
499 this->Constraints = new (C) StringLiteral*[NumConstraints];
500 std::copy(Constraints, Constraints + NumConstraints, this->Constraints);
502 C.Deallocate(this->Clobbers);
503 this->Clobbers = new (C) StringLiteral*[NumClobbers];
504 std::copy(Clobbers, Clobbers + NumClobbers, this->Clobbers);
507 /// getNamedOperand - Given a symbolic operand reference like %[foo],
508 /// translate this into a numeric value needed to reference the same operand.
509 /// This returns -1 if the operand name is invalid.
510 int GCCAsmStmt::getNamedOperand(StringRef SymbolicName) const {
511 unsigned NumPlusOperands = 0;
513 // Check if this is an output operand.
514 for (unsigned i = 0, e = getNumOutputs(); i != e; ++i) {
515 if (getOutputName(i) == SymbolicName)
519 for (unsigned i = 0, e = getNumInputs(); i != e; ++i)
520 if (getInputName(i) == SymbolicName)
521 return getNumOutputs() + NumPlusOperands + i;
523 for (unsigned i = 0, e = getNumLabels(); i != e; ++i)
524 if (getLabelName(i) == SymbolicName)
525 return i + getNumInputs();
531 /// AnalyzeAsmString - Analyze the asm string of the current asm, decomposing
532 /// it into pieces. If the asm string is erroneous, emit errors and return
533 /// true, otherwise return false.
534 unsigned GCCAsmStmt::AnalyzeAsmString(SmallVectorImpl<AsmStringPiece>&Pieces,
535 const ASTContext &C, unsigned &DiagOffs) const {
536 StringRef Str = getAsmString()->getString();
537 const char *StrStart = Str.begin();
538 const char *StrEnd = Str.end();
539 const char *CurPtr = StrStart;
541 // "Simple" inline asms have no constraints or operands, just convert the asm
542 // string to escape $'s.
545 for (; CurPtr != StrEnd; ++CurPtr) {
555 Pieces.push_back(AsmStringPiece(Result));
559 // CurStringPiece - The current string that we are building up as we scan the
561 std::string CurStringPiece;
563 bool HasVariants = !C.getTargetInfo().hasNoAsmVariants();
565 unsigned LastAsmStringToken = 0;
566 unsigned LastAsmStringOffset = 0;
569 // Done with the string?
570 if (CurPtr == StrEnd) {
571 if (!CurStringPiece.empty())
572 Pieces.push_back(AsmStringPiece(CurStringPiece));
576 char CurChar = *CurPtr++;
578 case '$': CurStringPiece += "$$"; continue;
579 case '{': CurStringPiece += (HasVariants ? "$(" : "{"); continue;
580 case '|': CurStringPiece += (HasVariants ? "$|" : "|"); continue;
581 case '}': CurStringPiece += (HasVariants ? "$)" : "}"); continue;
585 CurStringPiece += CurChar;
589 // Escaped "%" character in asm string.
590 if (CurPtr == StrEnd) {
591 // % at end of string is invalid (no escape).
592 DiagOffs = CurPtr-StrStart-1;
593 return diag::err_asm_invalid_escape;
595 // Handle escaped char and continue looping over the asm string.
596 char EscapedChar = *CurPtr++;
597 switch (EscapedChar) {
603 CurStringPiece += EscapedChar;
605 case '=': // %= -> Generate a unique ID.
606 CurStringPiece += "${:uid}";
610 // Otherwise, we have an operand. If we have accumulated a string so far,
611 // add it to the Pieces list.
612 if (!CurStringPiece.empty()) {
613 Pieces.push_back(AsmStringPiece(CurStringPiece));
614 CurStringPiece.clear();
617 // Handle operands that have asmSymbolicName (e.g., %x[foo]) and those that
618 // don't (e.g., %x4). 'x' following the '%' is the constraint modifier.
620 const char *Begin = CurPtr - 1; // Points to the character following '%'.
621 const char *Percent = Begin - 1; // Points to '%'.
623 if (isLetter(EscapedChar)) {
624 if (CurPtr == StrEnd) { // Premature end.
625 DiagOffs = CurPtr-StrStart-1;
626 return diag::err_asm_invalid_escape;
628 EscapedChar = *CurPtr++;
631 const TargetInfo &TI = C.getTargetInfo();
632 const SourceManager &SM = C.getSourceManager();
633 const LangOptions &LO = C.getLangOpts();
635 // Handle operands that don't have asmSymbolicName (e.g., %x4).
636 if (isDigit(EscapedChar)) {
637 // %n - Assembler operand n
641 while (CurPtr != StrEnd && isDigit(*CurPtr))
642 N = N*10 + ((*CurPtr++)-'0');
644 unsigned NumOperands = getNumOutputs() + getNumPlusOperands() +
645 getNumInputs() + getNumLabels();
646 if (N >= NumOperands) {
647 DiagOffs = CurPtr-StrStart-1;
648 return diag::err_asm_invalid_operand_number;
651 // Str contains "x4" (Operand without the leading %).
652 std::string Str(Begin, CurPtr - Begin);
654 // (BeginLoc, EndLoc) represents the range of the operand we are currently
655 // processing. Unlike Str, the range includes the leading '%'.
656 SourceLocation BeginLoc = getAsmString()->getLocationOfByte(
657 Percent - StrStart, SM, LO, TI, &LastAsmStringToken,
658 &LastAsmStringOffset);
659 SourceLocation EndLoc = getAsmString()->getLocationOfByte(
660 CurPtr - StrStart, SM, LO, TI, &LastAsmStringToken,
661 &LastAsmStringOffset);
663 Pieces.emplace_back(N, std::move(Str), BeginLoc, EndLoc);
667 // Handle operands that have asmSymbolicName (e.g., %x[foo]).
668 if (EscapedChar == '[') {
669 DiagOffs = CurPtr-StrStart-1;
672 const char *NameEnd = (const char*)memchr(CurPtr, ']', StrEnd-CurPtr);
673 if (NameEnd == nullptr)
674 return diag::err_asm_unterminated_symbolic_operand_name;
675 if (NameEnd == CurPtr)
676 return diag::err_asm_empty_symbolic_operand_name;
678 StringRef SymbolicName(CurPtr, NameEnd - CurPtr);
680 int N = getNamedOperand(SymbolicName);
682 // Verify that an operand with that name exists.
683 DiagOffs = CurPtr-StrStart;
684 return diag::err_asm_unknown_symbolic_operand_name;
687 // Str contains "x[foo]" (Operand without the leading %).
688 std::string Str(Begin, NameEnd + 1 - Begin);
690 // (BeginLoc, EndLoc) represents the range of the operand we are currently
691 // processing. Unlike Str, the range includes the leading '%'.
692 SourceLocation BeginLoc = getAsmString()->getLocationOfByte(
693 Percent - StrStart, SM, LO, TI, &LastAsmStringToken,
694 &LastAsmStringOffset);
695 SourceLocation EndLoc = getAsmString()->getLocationOfByte(
696 NameEnd + 1 - StrStart, SM, LO, TI, &LastAsmStringToken,
697 &LastAsmStringOffset);
699 Pieces.emplace_back(N, std::move(Str), BeginLoc, EndLoc);
705 DiagOffs = CurPtr-StrStart-1;
706 return diag::err_asm_invalid_escape;
710 /// Assemble final IR asm string (GCC-style).
711 std::string GCCAsmStmt::generateAsmString(const ASTContext &C) const {
712 // Analyze the asm string to decompose it into its pieces. We know that Sema
713 // has already done this, so it is guaranteed to be successful.
714 SmallVector<GCCAsmStmt::AsmStringPiece, 4> Pieces;
716 AnalyzeAsmString(Pieces, C, DiagOffs);
718 std::string AsmString;
719 for (const auto &Piece : Pieces) {
720 if (Piece.isString())
721 AsmString += Piece.getString();
722 else if (Piece.getModifier() == '\0')
723 AsmString += '$' + llvm::utostr(Piece.getOperandNo());
725 AsmString += "${" + llvm::utostr(Piece.getOperandNo()) + ':' +
726 Piece.getModifier() + '}';
731 /// Assemble final IR asm string (MS-style).
732 std::string MSAsmStmt::generateAsmString(const ASTContext &C) const {
733 // FIXME: This needs to be translated into the IR string representation.
737 Expr *MSAsmStmt::getOutputExpr(unsigned i) {
738 return cast<Expr>(Exprs[i]);
741 Expr *MSAsmStmt::getInputExpr(unsigned i) {
742 return cast<Expr>(Exprs[i + NumOutputs]);
745 void MSAsmStmt::setInputExpr(unsigned i, Expr *E) {
746 Exprs[i + NumOutputs] = E;
749 //===----------------------------------------------------------------------===//
751 //===----------------------------------------------------------------------===//
753 GCCAsmStmt::GCCAsmStmt(const ASTContext &C, SourceLocation asmloc,
754 bool issimple, bool isvolatile, unsigned numoutputs,
755 unsigned numinputs, IdentifierInfo **names,
756 StringLiteral **constraints, Expr **exprs,
757 StringLiteral *asmstr, unsigned numclobbers,
758 StringLiteral **clobbers, unsigned numlabels,
759 SourceLocation rparenloc)
760 : AsmStmt(GCCAsmStmtClass, asmloc, issimple, isvolatile, numoutputs,
761 numinputs, numclobbers),
762 RParenLoc(rparenloc), AsmStr(asmstr), NumLabels(numlabels) {
763 unsigned NumExprs = NumOutputs + NumInputs + NumLabels;
765 Names = new (C) IdentifierInfo*[NumExprs];
766 std::copy(names, names + NumExprs, Names);
768 Exprs = new (C) Stmt*[NumExprs];
769 std::copy(exprs, exprs + NumExprs, Exprs);
771 unsigned NumConstraints = NumOutputs + NumInputs;
772 Constraints = new (C) StringLiteral*[NumConstraints];
773 std::copy(constraints, constraints + NumConstraints, Constraints);
775 Clobbers = new (C) StringLiteral*[NumClobbers];
776 std::copy(clobbers, clobbers + NumClobbers, Clobbers);
779 MSAsmStmt::MSAsmStmt(const ASTContext &C, SourceLocation asmloc,
780 SourceLocation lbraceloc, bool issimple, bool isvolatile,
781 ArrayRef<Token> asmtoks, unsigned numoutputs,
783 ArrayRef<StringRef> constraints, ArrayRef<Expr*> exprs,
784 StringRef asmstr, ArrayRef<StringRef> clobbers,
785 SourceLocation endloc)
786 : AsmStmt(MSAsmStmtClass, asmloc, issimple, isvolatile, numoutputs,
787 numinputs, clobbers.size()), LBraceLoc(lbraceloc),
788 EndLoc(endloc), NumAsmToks(asmtoks.size()) {
789 initialize(C, asmstr, asmtoks, constraints, exprs, clobbers);
792 static StringRef copyIntoContext(const ASTContext &C, StringRef str) {
796 void MSAsmStmt::initialize(const ASTContext &C, StringRef asmstr,
797 ArrayRef<Token> asmtoks,
798 ArrayRef<StringRef> constraints,
799 ArrayRef<Expr*> exprs,
800 ArrayRef<StringRef> clobbers) {
801 assert(NumAsmToks == asmtoks.size());
802 assert(NumClobbers == clobbers.size());
804 assert(exprs.size() == NumOutputs + NumInputs);
805 assert(exprs.size() == constraints.size());
807 AsmStr = copyIntoContext(C, asmstr);
809 Exprs = new (C) Stmt*[exprs.size()];
810 std::copy(exprs.begin(), exprs.end(), Exprs);
812 AsmToks = new (C) Token[asmtoks.size()];
813 std::copy(asmtoks.begin(), asmtoks.end(), AsmToks);
815 Constraints = new (C) StringRef[exprs.size()];
816 std::transform(constraints.begin(), constraints.end(), Constraints,
817 [&](StringRef Constraint) {
818 return copyIntoContext(C, Constraint);
821 Clobbers = new (C) StringRef[NumClobbers];
822 // FIXME: Avoid the allocation/copy if at all possible.
823 std::transform(clobbers.begin(), clobbers.end(), Clobbers,
824 [&](StringRef Clobber) {
825 return copyIntoContext(C, Clobber);
829 IfStmt::IfStmt(const ASTContext &Ctx, SourceLocation IL, bool IsConstexpr,
830 Stmt *Init, VarDecl *Var, Expr *Cond, Stmt *Then,
831 SourceLocation EL, Stmt *Else)
832 : Stmt(IfStmtClass) {
833 bool HasElse = Else != nullptr;
834 bool HasVar = Var != nullptr;
835 bool HasInit = Init != nullptr;
836 IfStmtBits.HasElse = HasElse;
837 IfStmtBits.HasVar = HasVar;
838 IfStmtBits.HasInit = HasInit;
840 setConstexpr(IsConstexpr);
847 setConditionVariable(Ctx, Var);
856 IfStmt::IfStmt(EmptyShell Empty, bool HasElse, bool HasVar, bool HasInit)
857 : Stmt(IfStmtClass, Empty) {
858 IfStmtBits.HasElse = HasElse;
859 IfStmtBits.HasVar = HasVar;
860 IfStmtBits.HasInit = HasInit;
863 IfStmt *IfStmt::Create(const ASTContext &Ctx, SourceLocation IL,
864 bool IsConstexpr, Stmt *Init, VarDecl *Var, Expr *Cond,
865 Stmt *Then, SourceLocation EL, Stmt *Else) {
866 bool HasElse = Else != nullptr;
867 bool HasVar = Var != nullptr;
868 bool HasInit = Init != nullptr;
869 void *Mem = Ctx.Allocate(
870 totalSizeToAlloc<Stmt *, SourceLocation>(
871 NumMandatoryStmtPtr + HasElse + HasVar + HasInit, HasElse),
874 IfStmt(Ctx, IL, IsConstexpr, Init, Var, Cond, Then, EL, Else);
877 IfStmt *IfStmt::CreateEmpty(const ASTContext &Ctx, bool HasElse, bool HasVar,
879 void *Mem = Ctx.Allocate(
880 totalSizeToAlloc<Stmt *, SourceLocation>(
881 NumMandatoryStmtPtr + HasElse + HasVar + HasInit, HasElse),
883 return new (Mem) IfStmt(EmptyShell(), HasElse, HasVar, HasInit);
886 VarDecl *IfStmt::getConditionVariable() {
887 auto *DS = getConditionVariableDeclStmt();
890 return cast<VarDecl>(DS->getSingleDecl());
893 void IfStmt::setConditionVariable(const ASTContext &Ctx, VarDecl *V) {
894 assert(hasVarStorage() &&
895 "This if statement has no storage for a condition variable!");
898 getTrailingObjects<Stmt *>()[varOffset()] = nullptr;
902 SourceRange VarRange = V->getSourceRange();
903 getTrailingObjects<Stmt *>()[varOffset()] = new (Ctx)
904 DeclStmt(DeclGroupRef(V), VarRange.getBegin(), VarRange.getEnd());
907 bool IfStmt::isObjCAvailabilityCheck() const {
908 return isa<ObjCAvailabilityCheckExpr>(getCond());
911 ForStmt::ForStmt(const ASTContext &C, Stmt *Init, Expr *Cond, VarDecl *condVar,
912 Expr *Inc, Stmt *Body, SourceLocation FL, SourceLocation LP,
914 : Stmt(ForStmtClass), LParenLoc(LP), RParenLoc(RP)
916 SubExprs[INIT] = Init;
917 setConditionVariable(C, condVar);
918 SubExprs[COND] = Cond;
920 SubExprs[BODY] = Body;
921 ForStmtBits.ForLoc = FL;
924 VarDecl *ForStmt::getConditionVariable() const {
925 if (!SubExprs[CONDVAR])
928 auto *DS = cast<DeclStmt>(SubExprs[CONDVAR]);
929 return cast<VarDecl>(DS->getSingleDecl());
932 void ForStmt::setConditionVariable(const ASTContext &C, VarDecl *V) {
934 SubExprs[CONDVAR] = nullptr;
938 SourceRange VarRange = V->getSourceRange();
939 SubExprs[CONDVAR] = new (C) DeclStmt(DeclGroupRef(V), VarRange.getBegin(),
943 SwitchStmt::SwitchStmt(const ASTContext &Ctx, Stmt *Init, VarDecl *Var,
945 : Stmt(SwitchStmtClass), FirstCase(nullptr) {
946 bool HasInit = Init != nullptr;
947 bool HasVar = Var != nullptr;
948 SwitchStmtBits.HasInit = HasInit;
949 SwitchStmtBits.HasVar = HasVar;
950 SwitchStmtBits.AllEnumCasesCovered = false;
957 setConditionVariable(Ctx, Var);
959 setSwitchLoc(SourceLocation{});
962 SwitchStmt::SwitchStmt(EmptyShell Empty, bool HasInit, bool HasVar)
963 : Stmt(SwitchStmtClass, Empty) {
964 SwitchStmtBits.HasInit = HasInit;
965 SwitchStmtBits.HasVar = HasVar;
966 SwitchStmtBits.AllEnumCasesCovered = false;
969 SwitchStmt *SwitchStmt::Create(const ASTContext &Ctx, Stmt *Init, VarDecl *Var,
971 bool HasInit = Init != nullptr;
972 bool HasVar = Var != nullptr;
973 void *Mem = Ctx.Allocate(
974 totalSizeToAlloc<Stmt *>(NumMandatoryStmtPtr + HasInit + HasVar),
975 alignof(SwitchStmt));
976 return new (Mem) SwitchStmt(Ctx, Init, Var, Cond);
979 SwitchStmt *SwitchStmt::CreateEmpty(const ASTContext &Ctx, bool HasInit,
981 void *Mem = Ctx.Allocate(
982 totalSizeToAlloc<Stmt *>(NumMandatoryStmtPtr + HasInit + HasVar),
983 alignof(SwitchStmt));
984 return new (Mem) SwitchStmt(EmptyShell(), HasInit, HasVar);
987 VarDecl *SwitchStmt::getConditionVariable() {
988 auto *DS = getConditionVariableDeclStmt();
991 return cast<VarDecl>(DS->getSingleDecl());
994 void SwitchStmt::setConditionVariable(const ASTContext &Ctx, VarDecl *V) {
995 assert(hasVarStorage() &&
996 "This switch statement has no storage for a condition variable!");
999 getTrailingObjects<Stmt *>()[varOffset()] = nullptr;
1003 SourceRange VarRange = V->getSourceRange();
1004 getTrailingObjects<Stmt *>()[varOffset()] = new (Ctx)
1005 DeclStmt(DeclGroupRef(V), VarRange.getBegin(), VarRange.getEnd());
1008 WhileStmt::WhileStmt(const ASTContext &Ctx, VarDecl *Var, Expr *Cond,
1009 Stmt *Body, SourceLocation WL)
1010 : Stmt(WhileStmtClass) {
1011 bool HasVar = Var != nullptr;
1012 WhileStmtBits.HasVar = HasVar;
1017 setConditionVariable(Ctx, Var);
1022 WhileStmt::WhileStmt(EmptyShell Empty, bool HasVar)
1023 : Stmt(WhileStmtClass, Empty) {
1024 WhileStmtBits.HasVar = HasVar;
1027 WhileStmt *WhileStmt::Create(const ASTContext &Ctx, VarDecl *Var, Expr *Cond,
1028 Stmt *Body, SourceLocation WL) {
1029 bool HasVar = Var != nullptr;
1031 Ctx.Allocate(totalSizeToAlloc<Stmt *>(NumMandatoryStmtPtr + HasVar),
1032 alignof(WhileStmt));
1033 return new (Mem) WhileStmt(Ctx, Var, Cond, Body, WL);
1036 WhileStmt *WhileStmt::CreateEmpty(const ASTContext &Ctx, bool HasVar) {
1038 Ctx.Allocate(totalSizeToAlloc<Stmt *>(NumMandatoryStmtPtr + HasVar),
1039 alignof(WhileStmt));
1040 return new (Mem) WhileStmt(EmptyShell(), HasVar);
1043 VarDecl *WhileStmt::getConditionVariable() {
1044 auto *DS = getConditionVariableDeclStmt();
1047 return cast<VarDecl>(DS->getSingleDecl());
1050 void WhileStmt::setConditionVariable(const ASTContext &Ctx, VarDecl *V) {
1051 assert(hasVarStorage() &&
1052 "This while statement has no storage for a condition variable!");
1055 getTrailingObjects<Stmt *>()[varOffset()] = nullptr;
1059 SourceRange VarRange = V->getSourceRange();
1060 getTrailingObjects<Stmt *>()[varOffset()] = new (Ctx)
1061 DeclStmt(DeclGroupRef(V), VarRange.getBegin(), VarRange.getEnd());
1065 LabelDecl *IndirectGotoStmt::getConstantTarget() {
1066 if (auto *E = dyn_cast<AddrLabelExpr>(getTarget()->IgnoreParenImpCasts()))
1067 return E->getLabel();
1072 ReturnStmt::ReturnStmt(SourceLocation RL, Expr *E, const VarDecl *NRVOCandidate)
1073 : Stmt(ReturnStmtClass), RetExpr(E) {
1074 bool HasNRVOCandidate = NRVOCandidate != nullptr;
1075 ReturnStmtBits.HasNRVOCandidate = HasNRVOCandidate;
1076 if (HasNRVOCandidate)
1077 setNRVOCandidate(NRVOCandidate);
1081 ReturnStmt::ReturnStmt(EmptyShell Empty, bool HasNRVOCandidate)
1082 : Stmt(ReturnStmtClass, Empty) {
1083 ReturnStmtBits.HasNRVOCandidate = HasNRVOCandidate;
1086 ReturnStmt *ReturnStmt::Create(const ASTContext &Ctx, SourceLocation RL,
1087 Expr *E, const VarDecl *NRVOCandidate) {
1088 bool HasNRVOCandidate = NRVOCandidate != nullptr;
1089 void *Mem = Ctx.Allocate(totalSizeToAlloc<const VarDecl *>(HasNRVOCandidate),
1090 alignof(ReturnStmt));
1091 return new (Mem) ReturnStmt(RL, E, NRVOCandidate);
1094 ReturnStmt *ReturnStmt::CreateEmpty(const ASTContext &Ctx,
1095 bool HasNRVOCandidate) {
1096 void *Mem = Ctx.Allocate(totalSizeToAlloc<const VarDecl *>(HasNRVOCandidate),
1097 alignof(ReturnStmt));
1098 return new (Mem) ReturnStmt(EmptyShell(), HasNRVOCandidate);
1102 CaseStmt *CaseStmt::Create(const ASTContext &Ctx, Expr *lhs, Expr *rhs,
1103 SourceLocation caseLoc, SourceLocation ellipsisLoc,
1104 SourceLocation colonLoc) {
1105 bool CaseStmtIsGNURange = rhs != nullptr;
1106 void *Mem = Ctx.Allocate(
1107 totalSizeToAlloc<Stmt *, SourceLocation>(
1108 NumMandatoryStmtPtr + CaseStmtIsGNURange, CaseStmtIsGNURange),
1110 return new (Mem) CaseStmt(lhs, rhs, caseLoc, ellipsisLoc, colonLoc);
1113 CaseStmt *CaseStmt::CreateEmpty(const ASTContext &Ctx,
1114 bool CaseStmtIsGNURange) {
1115 void *Mem = Ctx.Allocate(
1116 totalSizeToAlloc<Stmt *, SourceLocation>(
1117 NumMandatoryStmtPtr + CaseStmtIsGNURange, CaseStmtIsGNURange),
1119 return new (Mem) CaseStmt(EmptyShell(), CaseStmtIsGNURange);
1122 SEHTryStmt::SEHTryStmt(bool IsCXXTry, SourceLocation TryLoc, Stmt *TryBlock,
1124 : Stmt(SEHTryStmtClass), IsCXXTry(IsCXXTry), TryLoc(TryLoc) {
1125 Children[TRY] = TryBlock;
1126 Children[HANDLER] = Handler;
1129 SEHTryStmt* SEHTryStmt::Create(const ASTContext &C, bool IsCXXTry,
1130 SourceLocation TryLoc, Stmt *TryBlock,
1132 return new(C) SEHTryStmt(IsCXXTry,TryLoc,TryBlock,Handler);
1135 SEHExceptStmt* SEHTryStmt::getExceptHandler() const {
1136 return dyn_cast<SEHExceptStmt>(getHandler());
1139 SEHFinallyStmt* SEHTryStmt::getFinallyHandler() const {
1140 return dyn_cast<SEHFinallyStmt>(getHandler());
1143 SEHExceptStmt::SEHExceptStmt(SourceLocation Loc, Expr *FilterExpr, Stmt *Block)
1144 : Stmt(SEHExceptStmtClass), Loc(Loc) {
1145 Children[FILTER_EXPR] = FilterExpr;
1146 Children[BLOCK] = Block;
1149 SEHExceptStmt* SEHExceptStmt::Create(const ASTContext &C, SourceLocation Loc,
1150 Expr *FilterExpr, Stmt *Block) {
1151 return new(C) SEHExceptStmt(Loc,FilterExpr,Block);
1154 SEHFinallyStmt::SEHFinallyStmt(SourceLocation Loc, Stmt *Block)
1155 : Stmt(SEHFinallyStmtClass), Loc(Loc), Block(Block) {}
1157 SEHFinallyStmt* SEHFinallyStmt::Create(const ASTContext &C, SourceLocation Loc,
1159 return new(C)SEHFinallyStmt(Loc,Block);
1162 CapturedStmt::Capture::Capture(SourceLocation Loc, VariableCaptureKind Kind,
1164 : VarAndKind(Var, Kind), Loc(Loc) {
1167 assert(!Var && "'this' capture cannot have a variable!");
1170 assert(Var && "capturing by reference must have a variable!");
1173 assert(Var && "capturing by copy must have a variable!");
1175 (Var->getType()->isScalarType() || (Var->getType()->isReferenceType() &&
1177 ->castAs<ReferenceType>()
1179 ->isScalarType())) &&
1180 "captures by copy are expected to have a scalar type!");
1184 "Variable-length array type capture cannot have a variable!");
1189 CapturedStmt::VariableCaptureKind
1190 CapturedStmt::Capture::getCaptureKind() const {
1191 return VarAndKind.getInt();
1194 VarDecl *CapturedStmt::Capture::getCapturedVar() const {
1195 assert((capturesVariable() || capturesVariableByCopy()) &&
1196 "No variable available for 'this' or VAT capture");
1197 return VarAndKind.getPointer();
1200 CapturedStmt::Capture *CapturedStmt::getStoredCaptures() const {
1201 unsigned Size = sizeof(CapturedStmt) + sizeof(Stmt *) * (NumCaptures + 1);
1203 // Offset of the first Capture object.
1204 unsigned FirstCaptureOffset = llvm::alignTo(Size, alignof(Capture));
1206 return reinterpret_cast<Capture *>(
1207 reinterpret_cast<char *>(const_cast<CapturedStmt *>(this))
1208 + FirstCaptureOffset);
1211 CapturedStmt::CapturedStmt(Stmt *S, CapturedRegionKind Kind,
1212 ArrayRef<Capture> Captures,
1213 ArrayRef<Expr *> CaptureInits,
1216 : Stmt(CapturedStmtClass), NumCaptures(Captures.size()),
1217 CapDeclAndKind(CD, Kind), TheRecordDecl(RD) {
1218 assert( S && "null captured statement");
1219 assert(CD && "null captured declaration for captured statement");
1220 assert(RD && "null record declaration for captured statement");
1222 // Copy initialization expressions.
1223 Stmt **Stored = getStoredStmts();
1224 for (unsigned I = 0, N = NumCaptures; I != N; ++I)
1225 *Stored++ = CaptureInits[I];
1227 // Copy the statement being captured.
1230 // Copy all Capture objects.
1231 Capture *Buffer = getStoredCaptures();
1232 std::copy(Captures.begin(), Captures.end(), Buffer);
1235 CapturedStmt::CapturedStmt(EmptyShell Empty, unsigned NumCaptures)
1236 : Stmt(CapturedStmtClass, Empty), NumCaptures(NumCaptures),
1237 CapDeclAndKind(nullptr, CR_Default) {
1238 getStoredStmts()[NumCaptures] = nullptr;
1241 CapturedStmt *CapturedStmt::Create(const ASTContext &Context, Stmt *S,
1242 CapturedRegionKind Kind,
1243 ArrayRef<Capture> Captures,
1244 ArrayRef<Expr *> CaptureInits,
1249 // -----------------------------------------------------------
1250 // | CapturedStmt, Init, ..., Init, S, Capture, ..., Capture |
1251 // ----------------^-------------------^----------------------
1252 // getStoredStmts() getStoredCaptures()
1254 // where S is the statement being captured.
1256 assert(CaptureInits.size() == Captures.size() && "wrong number of arguments");
1258 unsigned Size = sizeof(CapturedStmt) + sizeof(Stmt *) * (Captures.size() + 1);
1259 if (!Captures.empty()) {
1260 // Realign for the following Capture array.
1261 Size = llvm::alignTo(Size, alignof(Capture));
1262 Size += sizeof(Capture) * Captures.size();
1265 void *Mem = Context.Allocate(Size);
1266 return new (Mem) CapturedStmt(S, Kind, Captures, CaptureInits, CD, RD);
1269 CapturedStmt *CapturedStmt::CreateDeserialized(const ASTContext &Context,
1270 unsigned NumCaptures) {
1271 unsigned Size = sizeof(CapturedStmt) + sizeof(Stmt *) * (NumCaptures + 1);
1272 if (NumCaptures > 0) {
1273 // Realign for the following Capture array.
1274 Size = llvm::alignTo(Size, alignof(Capture));
1275 Size += sizeof(Capture) * NumCaptures;
1278 void *Mem = Context.Allocate(Size);
1279 return new (Mem) CapturedStmt(EmptyShell(), NumCaptures);
1282 Stmt::child_range CapturedStmt::children() {
1283 // Children are captured field initializers.
1284 return child_range(getStoredStmts(), getStoredStmts() + NumCaptures);
1287 Stmt::const_child_range CapturedStmt::children() const {
1288 return const_child_range(getStoredStmts(), getStoredStmts() + NumCaptures);
1291 CapturedDecl *CapturedStmt::getCapturedDecl() {
1292 return CapDeclAndKind.getPointer();
1295 const CapturedDecl *CapturedStmt::getCapturedDecl() const {
1296 return CapDeclAndKind.getPointer();
1299 /// Set the outlined function declaration.
1300 void CapturedStmt::setCapturedDecl(CapturedDecl *D) {
1301 assert(D && "null CapturedDecl");
1302 CapDeclAndKind.setPointer(D);
1305 /// Retrieve the captured region kind.
1306 CapturedRegionKind CapturedStmt::getCapturedRegionKind() const {
1307 return CapDeclAndKind.getInt();
1310 /// Set the captured region kind.
1311 void CapturedStmt::setCapturedRegionKind(CapturedRegionKind Kind) {
1312 CapDeclAndKind.setInt(Kind);
1315 bool CapturedStmt::capturesVariable(const VarDecl *Var) const {
1316 for (const auto &I : captures()) {
1317 if (!I.capturesVariable() && !I.capturesVariableByCopy())
1319 if (I.getCapturedVar()->getCanonicalDecl() == Var->getCanonicalDecl())