1 //===- TemplateBase.cpp - Common template AST class implementation --------===//
2 //
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
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements common classes used throughout C++ template
10 // representations.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "clang/AST/TemplateBase.h"
15 #include "clang/AST/ASTContext.h"
16 #include "clang/AST/Decl.h"
17 #include "clang/AST/DeclBase.h"
18 #include "clang/AST/DeclTemplate.h"
19 #include "clang/AST/DependenceFlags.h"
20 #include "clang/AST/Expr.h"
21 #include "clang/AST/ExprCXX.h"
22 #include "clang/AST/PrettyPrinter.h"
23 #include "clang/AST/TemplateName.h"
24 #include "clang/AST/Type.h"
25 #include "clang/AST/TypeLoc.h"
26 #include "clang/Basic/Diagnostic.h"
27 #include "clang/Basic/LLVM.h"
28 #include "clang/Basic/LangOptions.h"
29 #include "clang/Basic/SourceLocation.h"
30 #include "llvm/ADT/APSInt.h"
31 #include "llvm/ADT/FoldingSet.h"
32 #include "llvm/ADT/SmallString.h"
33 #include "llvm/ADT/StringExtras.h"
34 #include "llvm/ADT/StringRef.h"
35 #include "llvm/Support/Casting.h"
36 #include "llvm/Support/Compiler.h"
37 #include "llvm/Support/ErrorHandling.h"
38 #include "llvm/Support/raw_ostream.h"
39 #include <cassert>
40 #include <cstddef>
41 #include <cstdint>
42 #include <cstring>
43 #include <optional>
44
45 using namespace clang;
46
47 /// Print a template integral argument value.
48 ///
49 /// \param TemplArg the TemplateArgument instance to print.
50 ///
51 /// \param Out the raw_ostream instance to use for printing.
52 ///
53 /// \param Policy the printing policy for EnumConstantDecl printing.
54 ///
55 /// \param IncludeType If set, ensure that the type of the expression printed
56 /// matches the type of the template argument.
printIntegral(const TemplateArgument & TemplArg,raw_ostream & Out,const PrintingPolicy & Policy,bool IncludeType)57 static void printIntegral(const TemplateArgument &TemplArg, raw_ostream &Out,
58 const PrintingPolicy &Policy, bool IncludeType) {
59 const Type *T = TemplArg.getIntegralType().getTypePtr();
60 const llvm::APSInt &Val = TemplArg.getAsIntegral();
61
62 if (Policy.UseEnumerators) {
63 if (const EnumType *ET = T->getAs<EnumType>()) {
64 for (const EnumConstantDecl *ECD : ET->getDecl()->enumerators()) {
65 // In Sema::CheckTemplateArugment, enum template arguments value are
66 // extended to the size of the integer underlying the enum type. This
67 // may create a size difference between the enum value and template
68 // argument value, requiring isSameValue here instead of operator==.
69 if (llvm::APSInt::isSameValue(ECD->getInitVal(), Val)) {
70 ECD->printQualifiedName(Out, Policy);
71 return;
72 }
73 }
74 }
75 }
76
77 if (Policy.MSVCFormatting)
78 IncludeType = false;
79
80 if (T->isBooleanType()) {
81 if (!Policy.MSVCFormatting)
82 Out << (Val.getBoolValue() ? "true" : "false");
83 else
84 Out << Val;
85 } else if (T->isCharType()) {
86 if (IncludeType) {
87 if (T->isSpecificBuiltinType(BuiltinType::SChar))
88 Out << "(signed char)";
89 else if (T->isSpecificBuiltinType(BuiltinType::UChar))
90 Out << "(unsigned char)";
91 }
92 CharacterLiteral::print(Val.getZExtValue(), CharacterLiteral::Ascii, Out);
93 } else if (T->isAnyCharacterType() && !Policy.MSVCFormatting) {
94 CharacterLiteral::CharacterKind Kind;
95 if (T->isWideCharType())
96 Kind = CharacterLiteral::Wide;
97 else if (T->isChar8Type())
98 Kind = CharacterLiteral::UTF8;
99 else if (T->isChar16Type())
100 Kind = CharacterLiteral::UTF16;
101 else if (T->isChar32Type())
102 Kind = CharacterLiteral::UTF32;
103 else
104 Kind = CharacterLiteral::Ascii;
105 CharacterLiteral::print(Val.getExtValue(), Kind, Out);
106 } else if (IncludeType) {
107 if (const auto *BT = T->getAs<BuiltinType>()) {
108 switch (BT->getKind()) {
109 case BuiltinType::ULongLong:
110 Out << Val << "ULL";
111 break;
112 case BuiltinType::LongLong:
113 Out << Val << "LL";
114 break;
115 case BuiltinType::ULong:
116 Out << Val << "UL";
117 break;
118 case BuiltinType::Long:
119 Out << Val << "L";
120 break;
121 case BuiltinType::UInt:
122 Out << Val << "U";
123 break;
124 case BuiltinType::Int:
125 Out << Val;
126 break;
127 default:
128 Out << "(" << T->getCanonicalTypeInternal().getAsString(Policy) << ")"
129 << Val;
130 break;
131 }
132 } else
133 Out << "(" << T->getCanonicalTypeInternal().getAsString(Policy) << ")"
134 << Val;
135 } else
136 Out << Val;
137 }
138
getArrayDepth(QualType type)139 static unsigned getArrayDepth(QualType type) {
140 unsigned count = 0;
141 while (const auto *arrayType = type->getAsArrayTypeUnsafe()) {
142 count++;
143 type = arrayType->getElementType();
144 }
145 return count;
146 }
147
needsAmpersandOnTemplateArg(QualType paramType,QualType argType)148 static bool needsAmpersandOnTemplateArg(QualType paramType, QualType argType) {
149 // Generally, if the parameter type is a pointer, we must be taking the
150 // address of something and need a &. However, if the argument is an array,
151 // this could be implicit via array-to-pointer decay.
152 if (!paramType->isPointerType())
153 return paramType->isMemberPointerType();
154 if (argType->isArrayType())
155 return getArrayDepth(argType) == getArrayDepth(paramType->getPointeeType());
156 return true;
157 }
158
159 //===----------------------------------------------------------------------===//
160 // TemplateArgument Implementation
161 //===----------------------------------------------------------------------===//
162
TemplateArgument(ASTContext & Ctx,const llvm::APSInt & Value,QualType Type)163 TemplateArgument::TemplateArgument(ASTContext &Ctx, const llvm::APSInt &Value,
164 QualType Type) {
165 Integer.Kind = Integral;
166 // Copy the APSInt value into our decomposed form.
167 Integer.BitWidth = Value.getBitWidth();
168 Integer.IsUnsigned = Value.isUnsigned();
169 // If the value is large, we have to get additional memory from the ASTContext
170 unsigned NumWords = Value.getNumWords();
171 if (NumWords > 1) {
172 void *Mem = Ctx.Allocate(NumWords * sizeof(uint64_t));
173 std::memcpy(Mem, Value.getRawData(), NumWords * sizeof(uint64_t));
174 Integer.pVal = static_cast<uint64_t *>(Mem);
175 } else {
176 Integer.VAL = Value.getZExtValue();
177 }
178
179 Integer.Type = Type.getAsOpaquePtr();
180 }
181
182 TemplateArgument
CreatePackCopy(ASTContext & Context,ArrayRef<TemplateArgument> Args)183 TemplateArgument::CreatePackCopy(ASTContext &Context,
184 ArrayRef<TemplateArgument> Args) {
185 if (Args.empty())
186 return getEmptyPack();
187
188 return TemplateArgument(Args.copy(Context));
189 }
190
getDependence() const191 TemplateArgumentDependence TemplateArgument::getDependence() const {
192 auto Deps = TemplateArgumentDependence::None;
193 switch (getKind()) {
194 case Null:
195 llvm_unreachable("Should not have a NULL template argument");
196
197 case Type:
198 Deps = toTemplateArgumentDependence(getAsType()->getDependence());
199 if (isa<PackExpansionType>(getAsType()))
200 Deps |= TemplateArgumentDependence::Dependent;
201 return Deps;
202
203 case Template:
204 return toTemplateArgumentDependence(getAsTemplate().getDependence());
205
206 case TemplateExpansion:
207 return TemplateArgumentDependence::Dependent |
208 TemplateArgumentDependence::Instantiation;
209
210 case Declaration: {
211 auto *DC = dyn_cast<DeclContext>(getAsDecl());
212 if (!DC)
213 DC = getAsDecl()->getDeclContext();
214 if (DC->isDependentContext())
215 Deps = TemplateArgumentDependence::Dependent |
216 TemplateArgumentDependence::Instantiation;
217 return Deps;
218 }
219
220 case NullPtr:
221 case Integral:
222 return TemplateArgumentDependence::None;
223
224 case Expression:
225 Deps = toTemplateArgumentDependence(getAsExpr()->getDependence());
226 if (isa<PackExpansionExpr>(getAsExpr()))
227 Deps |= TemplateArgumentDependence::Dependent |
228 TemplateArgumentDependence::Instantiation;
229 return Deps;
230
231 case Pack:
232 for (const auto &P : pack_elements())
233 Deps |= P.getDependence();
234 return Deps;
235 }
236 llvm_unreachable("unhandled ArgKind");
237 }
238
isDependent() const239 bool TemplateArgument::isDependent() const {
240 return getDependence() & TemplateArgumentDependence::Dependent;
241 }
242
isInstantiationDependent() const243 bool TemplateArgument::isInstantiationDependent() const {
244 return getDependence() & TemplateArgumentDependence::Instantiation;
245 }
246
isPackExpansion() const247 bool TemplateArgument::isPackExpansion() const {
248 switch (getKind()) {
249 case Null:
250 case Declaration:
251 case Integral:
252 case Pack:
253 case Template:
254 case NullPtr:
255 return false;
256
257 case TemplateExpansion:
258 return true;
259
260 case Type:
261 return isa<PackExpansionType>(getAsType());
262
263 case Expression:
264 return isa<PackExpansionExpr>(getAsExpr());
265 }
266
267 llvm_unreachable("Invalid TemplateArgument Kind!");
268 }
269
containsUnexpandedParameterPack() const270 bool TemplateArgument::containsUnexpandedParameterPack() const {
271 return getDependence() & TemplateArgumentDependence::UnexpandedPack;
272 }
273
getNumTemplateExpansions() const274 std::optional<unsigned> TemplateArgument::getNumTemplateExpansions() const {
275 assert(getKind() == TemplateExpansion);
276 if (TemplateArg.NumExpansions)
277 return TemplateArg.NumExpansions - 1;
278
279 return std::nullopt;
280 }
281
getNonTypeTemplateArgumentType() const282 QualType TemplateArgument::getNonTypeTemplateArgumentType() const {
283 switch (getKind()) {
284 case TemplateArgument::Null:
285 case TemplateArgument::Type:
286 case TemplateArgument::Template:
287 case TemplateArgument::TemplateExpansion:
288 case TemplateArgument::Pack:
289 return QualType();
290
291 case TemplateArgument::Integral:
292 return getIntegralType();
293
294 case TemplateArgument::Expression:
295 return getAsExpr()->getType();
296
297 case TemplateArgument::Declaration:
298 return getParamTypeForDecl();
299
300 case TemplateArgument::NullPtr:
301 return getNullPtrType();
302 }
303
304 llvm_unreachable("Invalid TemplateArgument Kind!");
305 }
306
Profile(llvm::FoldingSetNodeID & ID,const ASTContext & Context) const307 void TemplateArgument::Profile(llvm::FoldingSetNodeID &ID,
308 const ASTContext &Context) const {
309 ID.AddInteger(getKind());
310 switch (getKind()) {
311 case Null:
312 break;
313
314 case Type:
315 getAsType().Profile(ID);
316 break;
317
318 case NullPtr:
319 getNullPtrType().Profile(ID);
320 break;
321
322 case Declaration:
323 getParamTypeForDecl().Profile(ID);
324 ID.AddPointer(getAsDecl());
325 break;
326
327 case TemplateExpansion:
328 ID.AddInteger(TemplateArg.NumExpansions);
329 LLVM_FALLTHROUGH;
330 case Template:
331 getAsTemplateOrTemplatePattern().Profile(ID);
332 break;
333
334 case Integral:
335 getAsIntegral().Profile(ID);
336 getIntegralType().Profile(ID);
337 break;
338
339 case Expression:
340 getAsExpr()->Profile(ID, Context, true);
341 break;
342
343 case Pack:
344 ID.AddInteger(Args.NumArgs);
345 for (unsigned I = 0; I != Args.NumArgs; ++I)
346 Args.Args[I].Profile(ID, Context);
347 }
348 }
349
structurallyEquals(const TemplateArgument & Other) const350 bool TemplateArgument::structurallyEquals(const TemplateArgument &Other) const {
351 if (getKind() != Other.getKind()) return false;
352
353 switch (getKind()) {
354 case Null:
355 case Type:
356 case Expression:
357 case NullPtr:
358 return TypeOrValue.V == Other.TypeOrValue.V;
359
360 case Template:
361 case TemplateExpansion:
362 return TemplateArg.Name == Other.TemplateArg.Name &&
363 TemplateArg.NumExpansions == Other.TemplateArg.NumExpansions;
364
365 case Declaration:
366 return getAsDecl() == Other.getAsDecl() &&
367 getParamTypeForDecl() == Other.getParamTypeForDecl();
368
369 case Integral:
370 return getIntegralType() == Other.getIntegralType() &&
371 getAsIntegral() == Other.getAsIntegral();
372
373 case Pack:
374 if (Args.NumArgs != Other.Args.NumArgs) return false;
375 for (unsigned I = 0, E = Args.NumArgs; I != E; ++I)
376 if (!Args.Args[I].structurallyEquals(Other.Args.Args[I]))
377 return false;
378 return true;
379 }
380
381 llvm_unreachable("Invalid TemplateArgument Kind!");
382 }
383
getPackExpansionPattern() const384 TemplateArgument TemplateArgument::getPackExpansionPattern() const {
385 assert(isPackExpansion());
386
387 switch (getKind()) {
388 case Type:
389 return getAsType()->castAs<PackExpansionType>()->getPattern();
390
391 case Expression:
392 return cast<PackExpansionExpr>(getAsExpr())->getPattern();
393
394 case TemplateExpansion:
395 return TemplateArgument(getAsTemplateOrTemplatePattern());
396
397 case Declaration:
398 case Integral:
399 case Pack:
400 case Null:
401 case Template:
402 case NullPtr:
403 return TemplateArgument();
404 }
405
406 llvm_unreachable("Invalid TemplateArgument Kind!");
407 }
408
print(const PrintingPolicy & Policy,raw_ostream & Out,bool IncludeType) const409 void TemplateArgument::print(const PrintingPolicy &Policy, raw_ostream &Out,
410 bool IncludeType) const {
411
412 switch (getKind()) {
413 case Null:
414 Out << "(no value)";
415 break;
416
417 case Type: {
418 PrintingPolicy SubPolicy(Policy);
419 SubPolicy.SuppressStrongLifetime = true;
420 getAsType().print(Out, SubPolicy);
421 break;
422 }
423
424 case Declaration: {
425 NamedDecl *ND = getAsDecl();
426 if (getParamTypeForDecl()->isRecordType()) {
427 if (auto *TPO = dyn_cast<TemplateParamObjectDecl>(ND)) {
428 TPO->getType().getUnqualifiedType().print(Out, Policy);
429 TPO->printAsInit(Out, Policy);
430 break;
431 }
432 }
433 if (auto *VD = dyn_cast<ValueDecl>(ND)) {
434 if (needsAmpersandOnTemplateArg(getParamTypeForDecl(), VD->getType()))
435 Out << "&";
436 }
437 ND->printQualifiedName(Out);
438 break;
439 }
440
441 case NullPtr:
442 // FIXME: Include the type if it's not obvious from the context.
443 Out << "nullptr";
444 break;
445
446 case Template:
447 getAsTemplate().print(Out, Policy, TemplateName::Qualified::Fully);
448 break;
449
450 case TemplateExpansion:
451 getAsTemplateOrTemplatePattern().print(Out, Policy);
452 Out << "...";
453 break;
454
455 case Integral:
456 printIntegral(*this, Out, Policy, IncludeType);
457 break;
458
459 case Expression:
460 getAsExpr()->printPretty(Out, nullptr, Policy);
461 break;
462
463 case Pack:
464 Out << "<";
465 bool First = true;
466 for (const auto &P : pack_elements()) {
467 if (First)
468 First = false;
469 else
470 Out << ", ";
471
472 P.print(Policy, Out, IncludeType);
473 }
474 Out << ">";
475 break;
476 }
477 }
478
dump(raw_ostream & Out) const479 void TemplateArgument::dump(raw_ostream &Out) const {
480 LangOptions LO; // FIXME! see also TemplateName::dump().
481 LO.CPlusPlus = true;
482 LO.Bool = true;
483 print(PrintingPolicy(LO), Out, /*IncludeType*/ true);
484 }
485
dump() const486 LLVM_DUMP_METHOD void TemplateArgument::dump() const { dump(llvm::errs()); }
487
488 //===----------------------------------------------------------------------===//
489 // TemplateArgumentLoc Implementation
490 //===----------------------------------------------------------------------===//
491
getSourceRange() const492 SourceRange TemplateArgumentLoc::getSourceRange() const {
493 switch (Argument.getKind()) {
494 case TemplateArgument::Expression:
495 return getSourceExpression()->getSourceRange();
496
497 case TemplateArgument::Declaration:
498 return getSourceDeclExpression()->getSourceRange();
499
500 case TemplateArgument::NullPtr:
501 return getSourceNullPtrExpression()->getSourceRange();
502
503 case TemplateArgument::Type:
504 if (TypeSourceInfo *TSI = getTypeSourceInfo())
505 return TSI->getTypeLoc().getSourceRange();
506 else
507 return SourceRange();
508
509 case TemplateArgument::Template:
510 if (getTemplateQualifierLoc())
511 return SourceRange(getTemplateQualifierLoc().getBeginLoc(),
512 getTemplateNameLoc());
513 return SourceRange(getTemplateNameLoc());
514
515 case TemplateArgument::TemplateExpansion:
516 if (getTemplateQualifierLoc())
517 return SourceRange(getTemplateQualifierLoc().getBeginLoc(),
518 getTemplateEllipsisLoc());
519 return SourceRange(getTemplateNameLoc(), getTemplateEllipsisLoc());
520
521 case TemplateArgument::Integral:
522 return getSourceIntegralExpression()->getSourceRange();
523
524 case TemplateArgument::Pack:
525 case TemplateArgument::Null:
526 return SourceRange();
527 }
528
529 llvm_unreachable("Invalid TemplateArgument Kind!");
530 }
531
532 template <typename T>
DiagTemplateArg(const T & DB,const TemplateArgument & Arg)533 static const T &DiagTemplateArg(const T &DB, const TemplateArgument &Arg) {
534 switch (Arg.getKind()) {
535 case TemplateArgument::Null:
536 // This is bad, but not as bad as crashing because of argument
537 // count mismatches.
538 return DB << "(null template argument)";
539
540 case TemplateArgument::Type:
541 return DB << Arg.getAsType();
542
543 case TemplateArgument::Declaration:
544 return DB << Arg.getAsDecl();
545
546 case TemplateArgument::NullPtr:
547 return DB << "nullptr";
548
549 case TemplateArgument::Integral:
550 return DB << toString(Arg.getAsIntegral(), 10);
551
552 case TemplateArgument::Template:
553 return DB << Arg.getAsTemplate();
554
555 case TemplateArgument::TemplateExpansion:
556 return DB << Arg.getAsTemplateOrTemplatePattern() << "...";
557
558 case TemplateArgument::Expression: {
559 // This shouldn't actually ever happen, so it's okay that we're
560 // regurgitating an expression here.
561 // FIXME: We're guessing at LangOptions!
562 SmallString<32> Str;
563 llvm::raw_svector_ostream OS(Str);
564 LangOptions LangOpts;
565 LangOpts.CPlusPlus = true;
566 PrintingPolicy Policy(LangOpts);
567 Arg.getAsExpr()->printPretty(OS, nullptr, Policy);
568 return DB << OS.str();
569 }
570
571 case TemplateArgument::Pack: {
572 // FIXME: We're guessing at LangOptions!
573 SmallString<32> Str;
574 llvm::raw_svector_ostream OS(Str);
575 LangOptions LangOpts;
576 LangOpts.CPlusPlus = true;
577 PrintingPolicy Policy(LangOpts);
578 Arg.print(Policy, OS, /*IncludeType*/ true);
579 return DB << OS.str();
580 }
581 }
582
583 llvm_unreachable("Invalid TemplateArgument Kind!");
584 }
585
operator <<(const StreamingDiagnostic & DB,const TemplateArgument & Arg)586 const StreamingDiagnostic &clang::operator<<(const StreamingDiagnostic &DB,
587 const TemplateArgument &Arg) {
588 return DiagTemplateArg(DB, Arg);
589 }
590
TemplateArgumentLocInfo(ASTContext & Ctx,NestedNameSpecifierLoc QualifierLoc,SourceLocation TemplateNameLoc,SourceLocation EllipsisLoc)591 clang::TemplateArgumentLocInfo::TemplateArgumentLocInfo(
592 ASTContext &Ctx, NestedNameSpecifierLoc QualifierLoc,
593 SourceLocation TemplateNameLoc, SourceLocation EllipsisLoc) {
594 TemplateTemplateArgLocInfo *Template = new (Ctx) TemplateTemplateArgLocInfo;
595 Template->Qualifier = QualifierLoc.getNestedNameSpecifier();
596 Template->QualifierLocData = QualifierLoc.getOpaqueData();
597 Template->TemplateNameLoc = TemplateNameLoc;
598 Template->EllipsisLoc = EllipsisLoc;
599 Pointer = Template;
600 }
601
602 const ASTTemplateArgumentListInfo *
Create(const ASTContext & C,const TemplateArgumentListInfo & List)603 ASTTemplateArgumentListInfo::Create(const ASTContext &C,
604 const TemplateArgumentListInfo &List) {
605 std::size_t size = totalSizeToAlloc<TemplateArgumentLoc>(List.size());
606 void *Mem = C.Allocate(size, alignof(ASTTemplateArgumentListInfo));
607 return new (Mem) ASTTemplateArgumentListInfo(List);
608 }
609
610 const ASTTemplateArgumentListInfo *
Create(const ASTContext & C,const ASTTemplateArgumentListInfo * List)611 ASTTemplateArgumentListInfo::Create(const ASTContext &C,
612 const ASTTemplateArgumentListInfo *List) {
613 if (!List)
614 return nullptr;
615 std::size_t size =
616 totalSizeToAlloc<TemplateArgumentLoc>(List->getNumTemplateArgs());
617 void *Mem = C.Allocate(size, alignof(ASTTemplateArgumentListInfo));
618 return new (Mem) ASTTemplateArgumentListInfo(List);
619 }
620
ASTTemplateArgumentListInfo(const TemplateArgumentListInfo & Info)621 ASTTemplateArgumentListInfo::ASTTemplateArgumentListInfo(
622 const TemplateArgumentListInfo &Info) {
623 LAngleLoc = Info.getLAngleLoc();
624 RAngleLoc = Info.getRAngleLoc();
625 NumTemplateArgs = Info.size();
626
627 TemplateArgumentLoc *ArgBuffer = getTrailingObjects<TemplateArgumentLoc>();
628 for (unsigned i = 0; i != NumTemplateArgs; ++i)
629 new (&ArgBuffer[i]) TemplateArgumentLoc(Info[i]);
630 }
631
ASTTemplateArgumentListInfo(const ASTTemplateArgumentListInfo * Info)632 ASTTemplateArgumentListInfo::ASTTemplateArgumentListInfo(
633 const ASTTemplateArgumentListInfo *Info) {
634 LAngleLoc = Info->getLAngleLoc();
635 RAngleLoc = Info->getRAngleLoc();
636 NumTemplateArgs = Info->getNumTemplateArgs();
637
638 TemplateArgumentLoc *ArgBuffer = getTrailingObjects<TemplateArgumentLoc>();
639 for (unsigned i = 0; i != NumTemplateArgs; ++i)
640 new (&ArgBuffer[i]) TemplateArgumentLoc((*Info)[i]);
641 }
642
initializeFrom(SourceLocation TemplateKWLoc,const TemplateArgumentListInfo & Info,TemplateArgumentLoc * OutArgArray)643 void ASTTemplateKWAndArgsInfo::initializeFrom(
644 SourceLocation TemplateKWLoc, const TemplateArgumentListInfo &Info,
645 TemplateArgumentLoc *OutArgArray) {
646 this->TemplateKWLoc = TemplateKWLoc;
647 LAngleLoc = Info.getLAngleLoc();
648 RAngleLoc = Info.getRAngleLoc();
649 NumTemplateArgs = Info.size();
650
651 for (unsigned i = 0; i != NumTemplateArgs; ++i)
652 new (&OutArgArray[i]) TemplateArgumentLoc(Info[i]);
653 }
654
initializeFrom(SourceLocation TemplateKWLoc)655 void ASTTemplateKWAndArgsInfo::initializeFrom(SourceLocation TemplateKWLoc) {
656 assert(TemplateKWLoc.isValid());
657 LAngleLoc = SourceLocation();
658 RAngleLoc = SourceLocation();
659 this->TemplateKWLoc = TemplateKWLoc;
660 NumTemplateArgs = 0;
661 }
662
initializeFrom(SourceLocation TemplateKWLoc,const TemplateArgumentListInfo & Info,TemplateArgumentLoc * OutArgArray,TemplateArgumentDependence & Deps)663 void ASTTemplateKWAndArgsInfo::initializeFrom(
664 SourceLocation TemplateKWLoc, const TemplateArgumentListInfo &Info,
665 TemplateArgumentLoc *OutArgArray, TemplateArgumentDependence &Deps) {
666 this->TemplateKWLoc = TemplateKWLoc;
667 LAngleLoc = Info.getLAngleLoc();
668 RAngleLoc = Info.getRAngleLoc();
669 NumTemplateArgs = Info.size();
670
671 for (unsigned i = 0; i != NumTemplateArgs; ++i) {
672 Deps |= Info[i].getArgument().getDependence();
673
674 new (&OutArgArray[i]) TemplateArgumentLoc(Info[i]);
675 }
676 }
677
copyInto(const TemplateArgumentLoc * ArgArray,TemplateArgumentListInfo & Info) const678 void ASTTemplateKWAndArgsInfo::copyInto(const TemplateArgumentLoc *ArgArray,
679 TemplateArgumentListInfo &Info) const {
680 Info.setLAngleLoc(LAngleLoc);
681 Info.setRAngleLoc(RAngleLoc);
682 for (unsigned I = 0; I != NumTemplateArgs; ++I)
683 Info.addArgument(ArgArray[I]);
684 }
685