clang  8.0.0svn
TypePrinter.cpp
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1 //===- TypePrinter.cpp - Pretty-Print Clang Types -------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This contains code to print types from Clang's type system.
11 //
12 //===----------------------------------------------------------------------===//
13 
15 #include "clang/AST/ASTContext.h"
16 #include "clang/AST/Decl.h"
17 #include "clang/AST/DeclBase.h"
18 #include "clang/AST/DeclCXX.h"
19 #include "clang/AST/DeclObjC.h"
20 #include "clang/AST/DeclTemplate.h"
21 #include "clang/AST/Expr.h"
23 #include "clang/AST/TemplateBase.h"
24 #include "clang/AST/TemplateName.h"
25 #include "clang/AST/Type.h"
29 #include "clang/Basic/LLVM.h"
33 #include "clang/Basic/Specifiers.h"
34 #include "llvm/ADT/ArrayRef.h"
35 #include "llvm/ADT/SmallString.h"
36 #include "llvm/ADT/StringRef.h"
37 #include "llvm/ADT/Twine.h"
38 #include "llvm/Support/Casting.h"
39 #include "llvm/Support/Compiler.h"
40 #include "llvm/Support/ErrorHandling.h"
41 #include "llvm/Support/SaveAndRestore.h"
42 #include "llvm/Support/raw_ostream.h"
43 #include <cassert>
44 #include <string>
45 
46 using namespace clang;
47 
48 namespace {
49 
50  /// RAII object that enables printing of the ARC __strong lifetime
51  /// qualifier.
52  class IncludeStrongLifetimeRAII {
53  PrintingPolicy &Policy;
54  bool Old;
55 
56  public:
57  explicit IncludeStrongLifetimeRAII(PrintingPolicy &Policy)
58  : Policy(Policy), Old(Policy.SuppressStrongLifetime) {
59  if (!Policy.SuppressLifetimeQualifiers)
60  Policy.SuppressStrongLifetime = false;
61  }
62 
63  ~IncludeStrongLifetimeRAII() {
64  Policy.SuppressStrongLifetime = Old;
65  }
66  };
67 
68  class ParamPolicyRAII {
69  PrintingPolicy &Policy;
70  bool Old;
71 
72  public:
73  explicit ParamPolicyRAII(PrintingPolicy &Policy)
74  : Policy(Policy), Old(Policy.SuppressSpecifiers) {
75  Policy.SuppressSpecifiers = false;
76  }
77 
78  ~ParamPolicyRAII() {
79  Policy.SuppressSpecifiers = Old;
80  }
81  };
82 
83  class ElaboratedTypePolicyRAII {
84  PrintingPolicy &Policy;
85  bool SuppressTagKeyword;
86  bool SuppressScope;
87 
88  public:
89  explicit ElaboratedTypePolicyRAII(PrintingPolicy &Policy) : Policy(Policy) {
90  SuppressTagKeyword = Policy.SuppressTagKeyword;
91  SuppressScope = Policy.SuppressScope;
92  Policy.SuppressTagKeyword = true;
93  Policy.SuppressScope = true;
94  }
95 
96  ~ElaboratedTypePolicyRAII() {
97  Policy.SuppressTagKeyword = SuppressTagKeyword;
98  Policy.SuppressScope = SuppressScope;
99  }
100  };
101 
102  class TypePrinter {
103  PrintingPolicy Policy;
104  unsigned Indentation;
105  bool HasEmptyPlaceHolder = false;
106  bool InsideCCAttribute = false;
107 
108  public:
109  explicit TypePrinter(const PrintingPolicy &Policy, unsigned Indentation = 0)
110  : Policy(Policy), Indentation(Indentation) {}
111 
112  void print(const Type *ty, Qualifiers qs, raw_ostream &OS,
113  StringRef PlaceHolder);
114  void print(QualType T, raw_ostream &OS, StringRef PlaceHolder);
115 
116  static bool canPrefixQualifiers(const Type *T, bool &NeedARCStrongQualifier);
117  void spaceBeforePlaceHolder(raw_ostream &OS);
118  void printTypeSpec(NamedDecl *D, raw_ostream &OS);
119 
120  void printBefore(const Type *ty, Qualifiers qs, raw_ostream &OS);
121  void printBefore(QualType T, raw_ostream &OS);
122  void printAfter(const Type *ty, Qualifiers qs, raw_ostream &OS);
123  void printAfter(QualType T, raw_ostream &OS);
124  void AppendScope(DeclContext *DC, raw_ostream &OS);
125  void printTag(TagDecl *T, raw_ostream &OS);
126  void printFunctionAfter(const FunctionType::ExtInfo &Info, raw_ostream &OS);
127 #define ABSTRACT_TYPE(CLASS, PARENT)
128 #define TYPE(CLASS, PARENT) \
129  void print##CLASS##Before(const CLASS##Type *T, raw_ostream &OS); \
130  void print##CLASS##After(const CLASS##Type *T, raw_ostream &OS);
131 #include "clang/AST/TypeNodes.def"
132  };
133 
134 } // namespace
135 
136 static void AppendTypeQualList(raw_ostream &OS, unsigned TypeQuals,
137  bool HasRestrictKeyword) {
138  bool appendSpace = false;
139  if (TypeQuals & Qualifiers::Const) {
140  OS << "const";
141  appendSpace = true;
142  }
143  if (TypeQuals & Qualifiers::Volatile) {
144  if (appendSpace) OS << ' ';
145  OS << "volatile";
146  appendSpace = true;
147  }
148  if (TypeQuals & Qualifiers::Restrict) {
149  if (appendSpace) OS << ' ';
150  if (HasRestrictKeyword) {
151  OS << "restrict";
152  } else {
153  OS << "__restrict";
154  }
155  }
156 }
157 
158 void TypePrinter::spaceBeforePlaceHolder(raw_ostream &OS) {
159  if (!HasEmptyPlaceHolder)
160  OS << ' ';
161 }
162 
163 void TypePrinter::print(QualType t, raw_ostream &OS, StringRef PlaceHolder) {
164  SplitQualType split = t.split();
165  print(split.Ty, split.Quals, OS, PlaceHolder);
166 }
167 
168 void TypePrinter::print(const Type *T, Qualifiers Quals, raw_ostream &OS,
169  StringRef PlaceHolder) {
170  if (!T) {
171  OS << "NULL TYPE";
172  return;
173  }
174 
175  SaveAndRestore<bool> PHVal(HasEmptyPlaceHolder, PlaceHolder.empty());
176 
177  printBefore(T, Quals, OS);
178  OS << PlaceHolder;
179  printAfter(T, Quals, OS);
180 }
181 
182 bool TypePrinter::canPrefixQualifiers(const Type *T,
183  bool &NeedARCStrongQualifier) {
184  // CanPrefixQualifiers - We prefer to print type qualifiers before the type,
185  // so that we get "const int" instead of "int const", but we can't do this if
186  // the type is complex. For example if the type is "int*", we *must* print
187  // "int * const", printing "const int *" is different. Only do this when the
188  // type expands to a simple string.
189  bool CanPrefixQualifiers = false;
190  NeedARCStrongQualifier = false;
191  Type::TypeClass TC = T->getTypeClass();
192  if (const auto *AT = dyn_cast<AutoType>(T))
193  TC = AT->desugar()->getTypeClass();
194  if (const auto *Subst = dyn_cast<SubstTemplateTypeParmType>(T))
195  TC = Subst->getReplacementType()->getTypeClass();
196 
197  switch (TC) {
198  case Type::Auto:
199  case Type::Builtin:
200  case Type::Complex:
201  case Type::UnresolvedUsing:
202  case Type::Typedef:
203  case Type::TypeOfExpr:
204  case Type::TypeOf:
205  case Type::Decltype:
206  case Type::UnaryTransform:
207  case Type::Record:
208  case Type::Enum:
209  case Type::Elaborated:
210  case Type::TemplateTypeParm:
211  case Type::SubstTemplateTypeParmPack:
212  case Type::DeducedTemplateSpecialization:
213  case Type::TemplateSpecialization:
214  case Type::InjectedClassName:
215  case Type::DependentName:
216  case Type::DependentTemplateSpecialization:
217  case Type::ObjCObject:
218  case Type::ObjCTypeParam:
219  case Type::ObjCInterface:
220  case Type::Atomic:
221  case Type::Pipe:
222  CanPrefixQualifiers = true;
223  break;
224 
225  case Type::ObjCObjectPointer:
226  CanPrefixQualifiers = T->isObjCIdType() || T->isObjCClassType() ||
228  break;
229 
230  case Type::ConstantArray:
231  case Type::IncompleteArray:
232  case Type::VariableArray:
233  case Type::DependentSizedArray:
234  NeedARCStrongQualifier = true;
235  LLVM_FALLTHROUGH;
236 
237  case Type::Adjusted:
238  case Type::Decayed:
239  case Type::Pointer:
240  case Type::BlockPointer:
241  case Type::LValueReference:
242  case Type::RValueReference:
243  case Type::MemberPointer:
244  case Type::DependentAddressSpace:
245  case Type::DependentVector:
246  case Type::DependentSizedExtVector:
247  case Type::Vector:
248  case Type::ExtVector:
249  case Type::FunctionProto:
250  case Type::FunctionNoProto:
251  case Type::Paren:
252  case Type::Attributed:
253  case Type::PackExpansion:
254  case Type::SubstTemplateTypeParm:
255  CanPrefixQualifiers = false;
256  break;
257  }
258 
259  return CanPrefixQualifiers;
260 }
261 
262 void TypePrinter::printBefore(QualType T, raw_ostream &OS) {
263  SplitQualType Split = T.split();
264 
265  // If we have cv1 T, where T is substituted for cv2 U, only print cv1 - cv2
266  // at this level.
267  Qualifiers Quals = Split.Quals;
268  if (const auto *Subst = dyn_cast<SubstTemplateTypeParmType>(Split.Ty))
269  Quals -= QualType(Subst, 0).getQualifiers();
270 
271  printBefore(Split.Ty, Quals, OS);
272 }
273 
274 /// Prints the part of the type string before an identifier, e.g. for
275 /// "int foo[10]" it prints "int ".
276 void TypePrinter::printBefore(const Type *T,Qualifiers Quals, raw_ostream &OS) {
277  if (Policy.SuppressSpecifiers && T->isSpecifierType())
278  return;
279 
280  SaveAndRestore<bool> PrevPHIsEmpty(HasEmptyPlaceHolder);
281 
282  // Print qualifiers as appropriate.
283 
284  bool CanPrefixQualifiers = false;
285  bool NeedARCStrongQualifier = false;
286  CanPrefixQualifiers = canPrefixQualifiers(T, NeedARCStrongQualifier);
287 
288  if (CanPrefixQualifiers && !Quals.empty()) {
289  if (NeedARCStrongQualifier) {
290  IncludeStrongLifetimeRAII Strong(Policy);
291  Quals.print(OS, Policy, /*appendSpaceIfNonEmpty=*/true);
292  } else {
293  Quals.print(OS, Policy, /*appendSpaceIfNonEmpty=*/true);
294  }
295  }
296 
297  bool hasAfterQuals = false;
298  if (!CanPrefixQualifiers && !Quals.empty()) {
299  hasAfterQuals = !Quals.isEmptyWhenPrinted(Policy);
300  if (hasAfterQuals)
301  HasEmptyPlaceHolder = false;
302  }
303 
304  switch (T->getTypeClass()) {
305 #define ABSTRACT_TYPE(CLASS, PARENT)
306 #define TYPE(CLASS, PARENT) case Type::CLASS: \
307  print##CLASS##Before(cast<CLASS##Type>(T), OS); \
308  break;
309 #include "clang/AST/TypeNodes.def"
310  }
311 
312  if (hasAfterQuals) {
313  if (NeedARCStrongQualifier) {
314  IncludeStrongLifetimeRAII Strong(Policy);
315  Quals.print(OS, Policy, /*appendSpaceIfNonEmpty=*/!PrevPHIsEmpty.get());
316  } else {
317  Quals.print(OS, Policy, /*appendSpaceIfNonEmpty=*/!PrevPHIsEmpty.get());
318  }
319  }
320 }
321 
322 void TypePrinter::printAfter(QualType t, raw_ostream &OS) {
323  SplitQualType split = t.split();
324  printAfter(split.Ty, split.Quals, OS);
325 }
326 
327 /// Prints the part of the type string after an identifier, e.g. for
328 /// "int foo[10]" it prints "[10]".
329 void TypePrinter::printAfter(const Type *T, Qualifiers Quals, raw_ostream &OS) {
330  switch (T->getTypeClass()) {
331 #define ABSTRACT_TYPE(CLASS, PARENT)
332 #define TYPE(CLASS, PARENT) case Type::CLASS: \
333  print##CLASS##After(cast<CLASS##Type>(T), OS); \
334  break;
335 #include "clang/AST/TypeNodes.def"
336  }
337 }
338 
339 void TypePrinter::printBuiltinBefore(const BuiltinType *T, raw_ostream &OS) {
340  OS << T->getName(Policy);
341  spaceBeforePlaceHolder(OS);
342 }
343 
344 void TypePrinter::printBuiltinAfter(const BuiltinType *T, raw_ostream &OS) {}
345 
346 void TypePrinter::printComplexBefore(const ComplexType *T, raw_ostream &OS) {
347  OS << "_Complex ";
348  printBefore(T->getElementType(), OS);
349 }
350 
351 void TypePrinter::printComplexAfter(const ComplexType *T, raw_ostream &OS) {
352  printAfter(T->getElementType(), OS);
353 }
354 
355 void TypePrinter::printPointerBefore(const PointerType *T, raw_ostream &OS) {
356  IncludeStrongLifetimeRAII Strong(Policy);
357  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
358  printBefore(T->getPointeeType(), OS);
359  // Handle things like 'int (*A)[4];' correctly.
360  // FIXME: this should include vectors, but vectors use attributes I guess.
361  if (isa<ArrayType>(T->getPointeeType()))
362  OS << '(';
363  OS << '*';
364 }
365 
366 void TypePrinter::printPointerAfter(const PointerType *T, raw_ostream &OS) {
367  IncludeStrongLifetimeRAII Strong(Policy);
368  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
369  // Handle things like 'int (*A)[4];' correctly.
370  // FIXME: this should include vectors, but vectors use attributes I guess.
371  if (isa<ArrayType>(T->getPointeeType()))
372  OS << ')';
373  printAfter(T->getPointeeType(), OS);
374 }
375 
376 void TypePrinter::printBlockPointerBefore(const BlockPointerType *T,
377  raw_ostream &OS) {
378  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
379  printBefore(T->getPointeeType(), OS);
380  OS << '^';
381 }
382 
383 void TypePrinter::printBlockPointerAfter(const BlockPointerType *T,
384  raw_ostream &OS) {
385  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
386  printAfter(T->getPointeeType(), OS);
387 }
388 
389 // When printing a reference, the referenced type might also be a reference.
390 // If so, we want to skip that before printing the inner type.
392  if (auto *Ref = T->getAs<ReferenceType>())
393  return skipTopLevelReferences(Ref->getPointeeTypeAsWritten());
394  return T;
395 }
396 
397 void TypePrinter::printLValueReferenceBefore(const LValueReferenceType *T,
398  raw_ostream &OS) {
399  IncludeStrongLifetimeRAII Strong(Policy);
400  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
402  printBefore(Inner, OS);
403  // Handle things like 'int (&A)[4];' correctly.
404  // FIXME: this should include vectors, but vectors use attributes I guess.
405  if (isa<ArrayType>(Inner))
406  OS << '(';
407  OS << '&';
408 }
409 
410 void TypePrinter::printLValueReferenceAfter(const LValueReferenceType *T,
411  raw_ostream &OS) {
412  IncludeStrongLifetimeRAII Strong(Policy);
413  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
415  // Handle things like 'int (&A)[4];' correctly.
416  // FIXME: this should include vectors, but vectors use attributes I guess.
417  if (isa<ArrayType>(Inner))
418  OS << ')';
419  printAfter(Inner, OS);
420 }
421 
422 void TypePrinter::printRValueReferenceBefore(const RValueReferenceType *T,
423  raw_ostream &OS) {
424  IncludeStrongLifetimeRAII Strong(Policy);
425  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
427  printBefore(Inner, OS);
428  // Handle things like 'int (&&A)[4];' correctly.
429  // FIXME: this should include vectors, but vectors use attributes I guess.
430  if (isa<ArrayType>(Inner))
431  OS << '(';
432  OS << "&&";
433 }
434 
435 void TypePrinter::printRValueReferenceAfter(const RValueReferenceType *T,
436  raw_ostream &OS) {
437  IncludeStrongLifetimeRAII Strong(Policy);
438  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
440  // Handle things like 'int (&&A)[4];' correctly.
441  // FIXME: this should include vectors, but vectors use attributes I guess.
442  if (isa<ArrayType>(Inner))
443  OS << ')';
444  printAfter(Inner, OS);
445 }
446 
447 void TypePrinter::printMemberPointerBefore(const MemberPointerType *T,
448  raw_ostream &OS) {
449  IncludeStrongLifetimeRAII Strong(Policy);
450  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
451  printBefore(T->getPointeeType(), OS);
452  // Handle things like 'int (Cls::*A)[4];' correctly.
453  // FIXME: this should include vectors, but vectors use attributes I guess.
454  if (isa<ArrayType>(T->getPointeeType()))
455  OS << '(';
456 
457  PrintingPolicy InnerPolicy(Policy);
458  InnerPolicy.IncludeTagDefinition = false;
459  TypePrinter(InnerPolicy).print(QualType(T->getClass(), 0), OS, StringRef());
460 
461  OS << "::*";
462 }
463 
464 void TypePrinter::printMemberPointerAfter(const MemberPointerType *T,
465  raw_ostream &OS) {
466  IncludeStrongLifetimeRAII Strong(Policy);
467  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
468  // Handle things like 'int (Cls::*A)[4];' correctly.
469  // FIXME: this should include vectors, but vectors use attributes I guess.
470  if (isa<ArrayType>(T->getPointeeType()))
471  OS << ')';
472  printAfter(T->getPointeeType(), OS);
473 }
474 
475 void TypePrinter::printConstantArrayBefore(const ConstantArrayType *T,
476  raw_ostream &OS) {
477  IncludeStrongLifetimeRAII Strong(Policy);
478  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
479  printBefore(T->getElementType(), OS);
480 }
481 
482 void TypePrinter::printConstantArrayAfter(const ConstantArrayType *T,
483  raw_ostream &OS) {
484  OS << '[';
487  Policy.Restrict);
488  OS << ' ';
489  }
490 
492  OS << "static ";
493 
494  OS << T->getSize().getZExtValue() << ']';
495  printAfter(T->getElementType(), OS);
496 }
497 
498 void TypePrinter::printIncompleteArrayBefore(const IncompleteArrayType *T,
499  raw_ostream &OS) {
500  IncludeStrongLifetimeRAII Strong(Policy);
501  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
502  printBefore(T->getElementType(), OS);
503 }
504 
505 void TypePrinter::printIncompleteArrayAfter(const IncompleteArrayType *T,
506  raw_ostream &OS) {
507  OS << "[]";
508  printAfter(T->getElementType(), OS);
509 }
510 
511 void TypePrinter::printVariableArrayBefore(const VariableArrayType *T,
512  raw_ostream &OS) {
513  IncludeStrongLifetimeRAII Strong(Policy);
514  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
515  printBefore(T->getElementType(), OS);
516 }
517 
518 void TypePrinter::printVariableArrayAfter(const VariableArrayType *T,
519  raw_ostream &OS) {
520  OS << '[';
522  AppendTypeQualList(OS, T->getIndexTypeCVRQualifiers(), Policy.Restrict);
523  OS << ' ';
524  }
525 
527  OS << "static ";
528  else if (T->getSizeModifier() == VariableArrayType::Star)
529  OS << '*';
530 
531  if (T->getSizeExpr())
532  T->getSizeExpr()->printPretty(OS, nullptr, Policy);
533  OS << ']';
534 
535  printAfter(T->getElementType(), OS);
536 }
537 
538 void TypePrinter::printAdjustedBefore(const AdjustedType *T, raw_ostream &OS) {
539  // Print the adjusted representation, otherwise the adjustment will be
540  // invisible.
541  printBefore(T->getAdjustedType(), OS);
542 }
543 
544 void TypePrinter::printAdjustedAfter(const AdjustedType *T, raw_ostream &OS) {
545  printAfter(T->getAdjustedType(), OS);
546 }
547 
548 void TypePrinter::printDecayedBefore(const DecayedType *T, raw_ostream &OS) {
549  // Print as though it's a pointer.
550  printAdjustedBefore(T, OS);
551 }
552 
553 void TypePrinter::printDecayedAfter(const DecayedType *T, raw_ostream &OS) {
554  printAdjustedAfter(T, OS);
555 }
556 
557 void TypePrinter::printDependentSizedArrayBefore(
558  const DependentSizedArrayType *T,
559  raw_ostream &OS) {
560  IncludeStrongLifetimeRAII Strong(Policy);
561  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
562  printBefore(T->getElementType(), OS);
563 }
564 
565 void TypePrinter::printDependentSizedArrayAfter(
566  const DependentSizedArrayType *T,
567  raw_ostream &OS) {
568  OS << '[';
569  if (T->getSizeExpr())
570  T->getSizeExpr()->printPretty(OS, nullptr, Policy);
571  OS << ']';
572  printAfter(T->getElementType(), OS);
573 }
574 
575 void TypePrinter::printDependentAddressSpaceBefore(
576  const DependentAddressSpaceType *T, raw_ostream &OS) {
577  printBefore(T->getPointeeType(), OS);
578 }
579 
580 void TypePrinter::printDependentAddressSpaceAfter(
581  const DependentAddressSpaceType *T, raw_ostream &OS) {
582  OS << " __attribute__((address_space(";
583  if (T->getAddrSpaceExpr())
584  T->getAddrSpaceExpr()->printPretty(OS, nullptr, Policy);
585  OS << ")))";
586  printAfter(T->getPointeeType(), OS);
587 }
588 
589 void TypePrinter::printDependentSizedExtVectorBefore(
591  raw_ostream &OS) {
592  printBefore(T->getElementType(), OS);
593 }
594 
595 void TypePrinter::printDependentSizedExtVectorAfter(
597  raw_ostream &OS) {
598  OS << " __attribute__((ext_vector_type(";
599  if (T->getSizeExpr())
600  T->getSizeExpr()->printPretty(OS, nullptr, Policy);
601  OS << ")))";
602  printAfter(T->getElementType(), OS);
603 }
604 
605 void TypePrinter::printVectorBefore(const VectorType *T, raw_ostream &OS) {
606  switch (T->getVectorKind()) {
608  OS << "__vector __pixel ";
609  break;
611  OS << "__vector __bool ";
612  printBefore(T->getElementType(), OS);
613  break;
615  OS << "__vector ";
616  printBefore(T->getElementType(), OS);
617  break;
619  OS << "__attribute__((neon_vector_type("
620  << T->getNumElements() << "))) ";
621  printBefore(T->getElementType(), OS);
622  break;
624  OS << "__attribute__((neon_polyvector_type(" <<
625  T->getNumElements() << "))) ";
626  printBefore(T->getElementType(), OS);
627  break;
629  // FIXME: We prefer to print the size directly here, but have no way
630  // to get the size of the type.
631  OS << "__attribute__((__vector_size__("
632  << T->getNumElements()
633  << " * sizeof(";
634  print(T->getElementType(), OS, StringRef());
635  OS << ")))) ";
636  printBefore(T->getElementType(), OS);
637  break;
638  }
639  }
640 }
641 
642 void TypePrinter::printVectorAfter(const VectorType *T, raw_ostream &OS) {
643  printAfter(T->getElementType(), OS);
644 }
645 
646 void TypePrinter::printDependentVectorBefore(
647  const DependentVectorType *T, raw_ostream &OS) {
648  switch (T->getVectorKind()) {
650  OS << "__vector __pixel ";
651  break;
653  OS << "__vector __bool ";
654  printBefore(T->getElementType(), OS);
655  break;
657  OS << "__vector ";
658  printBefore(T->getElementType(), OS);
659  break;
661  OS << "__attribute__((neon_vector_type(";
662  if (T->getSizeExpr())
663  T->getSizeExpr()->printPretty(OS, nullptr, Policy);
664  OS << "))) ";
665  printBefore(T->getElementType(), OS);
666  break;
668  OS << "__attribute__((neon_polyvector_type(";
669  if (T->getSizeExpr())
670  T->getSizeExpr()->printPretty(OS, nullptr, Policy);
671  OS << "))) ";
672  printBefore(T->getElementType(), OS);
673  break;
675  // FIXME: We prefer to print the size directly here, but have no way
676  // to get the size of the type.
677  OS << "__attribute__((__vector_size__(";
678  if (T->getSizeExpr())
679  T->getSizeExpr()->printPretty(OS, nullptr, Policy);
680  OS << " * sizeof(";
681  print(T->getElementType(), OS, StringRef());
682  OS << ")))) ";
683  printBefore(T->getElementType(), OS);
684  break;
685  }
686  }
687 }
688 
689 void TypePrinter::printDependentVectorAfter(
690  const DependentVectorType *T, raw_ostream &OS) {
691  printAfter(T->getElementType(), OS);
692 }
693 
694 void TypePrinter::printExtVectorBefore(const ExtVectorType *T,
695  raw_ostream &OS) {
696  printBefore(T->getElementType(), OS);
697 }
698 
699 void TypePrinter::printExtVectorAfter(const ExtVectorType *T, raw_ostream &OS) {
700  printAfter(T->getElementType(), OS);
701  OS << " __attribute__((ext_vector_type(";
702  OS << T->getNumElements();
703  OS << ")))";
704 }
705 
706 void
708  const PrintingPolicy &Policy)
709  const {
710  if (hasDynamicExceptionSpec()) {
711  OS << " throw(";
712  if (getExceptionSpecType() == EST_MSAny)
713  OS << "...";
714  else
715  for (unsigned I = 0, N = getNumExceptions(); I != N; ++I) {
716  if (I)
717  OS << ", ";
718 
719  OS << getExceptionType(I).stream(Policy);
720  }
721  OS << ')';
722  } else if (isNoexceptExceptionSpec(getExceptionSpecType())) {
723  OS << " noexcept";
724  // FIXME:Is it useful to print out the expression for a non-dependent
725  // noexcept specification?
726  if (isComputedNoexcept(getExceptionSpecType())) {
727  OS << '(';
728  if (getNoexceptExpr())
729  getNoexceptExpr()->printPretty(OS, nullptr, Policy);
730  OS << ')';
731  }
732  }
733 }
734 
735 void TypePrinter::printFunctionProtoBefore(const FunctionProtoType *T,
736  raw_ostream &OS) {
737  if (T->hasTrailingReturn()) {
738  OS << "auto ";
739  if (!HasEmptyPlaceHolder)
740  OS << '(';
741  } else {
742  // If needed for precedence reasons, wrap the inner part in grouping parens.
743  SaveAndRestore<bool> PrevPHIsEmpty(HasEmptyPlaceHolder, false);
744  printBefore(T->getReturnType(), OS);
745  if (!PrevPHIsEmpty.get())
746  OS << '(';
747  }
748 }
749 
751  switch (ABI) {
753  llvm_unreachable("asking for spelling of ordinary parameter ABI");
755  return "swift_context";
757  return "swift_error_result";
759  return "swift_indirect_result";
760  }
761  llvm_unreachable("bad parameter ABI kind");
762 }
763 
764 void TypePrinter::printFunctionProtoAfter(const FunctionProtoType *T,
765  raw_ostream &OS) {
766  // If needed for precedence reasons, wrap the inner part in grouping parens.
767  if (!HasEmptyPlaceHolder)
768  OS << ')';
769  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
770 
771  OS << '(';
772  {
773  ParamPolicyRAII ParamPolicy(Policy);
774  for (unsigned i = 0, e = T->getNumParams(); i != e; ++i) {
775  if (i) OS << ", ";
776 
777  auto EPI = T->getExtParameterInfo(i);
778  if (EPI.isConsumed()) OS << "__attribute__((ns_consumed)) ";
779  if (EPI.isNoEscape())
780  OS << "__attribute__((noescape)) ";
781  auto ABI = EPI.getABI();
782  if (ABI != ParameterABI::Ordinary)
783  OS << "__attribute__((" << getParameterABISpelling(ABI) << ")) ";
784 
785  print(T->getParamType(i), OS, StringRef());
786  }
787  }
788 
789  if (T->isVariadic()) {
790  if (T->getNumParams())
791  OS << ", ";
792  OS << "...";
793  } else if (T->getNumParams() == 0 && Policy.UseVoidForZeroParams) {
794  // Do not emit int() if we have a proto, emit 'int(void)'.
795  OS << "void";
796  }
797 
798  OS << ')';
799 
800  FunctionType::ExtInfo Info = T->getExtInfo();
801 
802  printFunctionAfter(Info, OS);
803 
804  if (unsigned quals = T->getTypeQuals()) {
805  OS << ' ';
806  AppendTypeQualList(OS, quals, Policy.Restrict);
807  }
808 
809  switch (T->getRefQualifier()) {
810  case RQ_None:
811  break;
812 
813  case RQ_LValue:
814  OS << " &";
815  break;
816 
817  case RQ_RValue:
818  OS << " &&";
819  break;
820  }
821  T->printExceptionSpecification(OS, Policy);
822 
823  if (T->hasTrailingReturn()) {
824  OS << " -> ";
825  print(T->getReturnType(), OS, StringRef());
826  } else
827  printAfter(T->getReturnType(), OS);
828 }
829 
830 void TypePrinter::printFunctionAfter(const FunctionType::ExtInfo &Info,
831  raw_ostream &OS) {
832  if (!InsideCCAttribute) {
833  switch (Info.getCC()) {
834  case CC_C:
835  // The C calling convention is the default on the vast majority of platforms
836  // we support. If the user wrote it explicitly, it will usually be printed
837  // while traversing the AttributedType. If the type has been desugared, let
838  // the canonical spelling be the implicit calling convention.
839  // FIXME: It would be better to be explicit in certain contexts, such as a
840  // cdecl function typedef used to declare a member function with the
841  // Microsoft C++ ABI.
842  break;
843  case CC_X86StdCall:
844  OS << " __attribute__((stdcall))";
845  break;
846  case CC_X86FastCall:
847  OS << " __attribute__((fastcall))";
848  break;
849  case CC_X86ThisCall:
850  OS << " __attribute__((thiscall))";
851  break;
852  case CC_X86VectorCall:
853  OS << " __attribute__((vectorcall))";
854  break;
855  case CC_X86Pascal:
856  OS << " __attribute__((pascal))";
857  break;
858  case CC_AAPCS:
859  OS << " __attribute__((pcs(\"aapcs\")))";
860  break;
861  case CC_AAPCS_VFP:
862  OS << " __attribute__((pcs(\"aapcs-vfp\")))";
863  break;
864  case CC_IntelOclBicc:
865  OS << " __attribute__((intel_ocl_bicc))";
866  break;
867  case CC_Win64:
868  OS << " __attribute__((ms_abi))";
869  break;
870  case CC_X86_64SysV:
871  OS << " __attribute__((sysv_abi))";
872  break;
873  case CC_X86RegCall:
874  OS << " __attribute__((regcall))";
875  break;
876  case CC_SpirFunction:
877  case CC_OpenCLKernel:
878  // Do nothing. These CCs are not available as attributes.
879  break;
880  case CC_Swift:
881  OS << " __attribute__((swiftcall))";
882  break;
883  case CC_PreserveMost:
884  OS << " __attribute__((preserve_most))";
885  break;
886  case CC_PreserveAll:
887  OS << " __attribute__((preserve_all))";
888  break;
889  }
890  }
891 
892  if (Info.getNoReturn())
893  OS << " __attribute__((noreturn))";
894  if (Info.getProducesResult())
895  OS << " __attribute__((ns_returns_retained))";
896  if (Info.getRegParm())
897  OS << " __attribute__((regparm ("
898  << Info.getRegParm() << ")))";
899  if (Info.getNoCallerSavedRegs())
900  OS << " __attribute__((no_caller_saved_registers))";
901  if (Info.getNoCfCheck())
902  OS << " __attribute__((nocf_check))";
903 }
904 
905 void TypePrinter::printFunctionNoProtoBefore(const FunctionNoProtoType *T,
906  raw_ostream &OS) {
907  // If needed for precedence reasons, wrap the inner part in grouping parens.
908  SaveAndRestore<bool> PrevPHIsEmpty(HasEmptyPlaceHolder, false);
909  printBefore(T->getReturnType(), OS);
910  if (!PrevPHIsEmpty.get())
911  OS << '(';
912 }
913 
914 void TypePrinter::printFunctionNoProtoAfter(const FunctionNoProtoType *T,
915  raw_ostream &OS) {
916  // If needed for precedence reasons, wrap the inner part in grouping parens.
917  if (!HasEmptyPlaceHolder)
918  OS << ')';
919  SaveAndRestore<bool> NonEmptyPH(HasEmptyPlaceHolder, false);
920 
921  OS << "()";
922  printFunctionAfter(T->getExtInfo(), OS);
923  printAfter(T->getReturnType(), OS);
924 }
925 
926 void TypePrinter::printTypeSpec(NamedDecl *D, raw_ostream &OS) {
927 
928  // Compute the full nested-name-specifier for this type.
929  // In C, this will always be empty except when the type
930  // being printed is anonymous within other Record.
931  if (!Policy.SuppressScope)
932  AppendScope(D->getDeclContext(), OS);
933 
934  IdentifierInfo *II = D->getIdentifier();
935  OS << II->getName();
936  spaceBeforePlaceHolder(OS);
937 }
938 
939 void TypePrinter::printUnresolvedUsingBefore(const UnresolvedUsingType *T,
940  raw_ostream &OS) {
941  printTypeSpec(T->getDecl(), OS);
942 }
943 
944 void TypePrinter::printUnresolvedUsingAfter(const UnresolvedUsingType *T,
945  raw_ostream &OS) {}
946 
947 void TypePrinter::printTypedefBefore(const TypedefType *T, raw_ostream &OS) {
948  printTypeSpec(T->getDecl(), OS);
949 }
950 
951 void TypePrinter::printTypedefAfter(const TypedefType *T, raw_ostream &OS) {}
952 
953 void TypePrinter::printTypeOfExprBefore(const TypeOfExprType *T,
954  raw_ostream &OS) {
955  OS << "typeof ";
956  if (T->getUnderlyingExpr())
957  T->getUnderlyingExpr()->printPretty(OS, nullptr, Policy);
958  spaceBeforePlaceHolder(OS);
959 }
960 
961 void TypePrinter::printTypeOfExprAfter(const TypeOfExprType *T,
962  raw_ostream &OS) {}
963 
964 void TypePrinter::printTypeOfBefore(const TypeOfType *T, raw_ostream &OS) {
965  OS << "typeof(";
966  print(T->getUnderlyingType(), OS, StringRef());
967  OS << ')';
968  spaceBeforePlaceHolder(OS);
969 }
970 
971 void TypePrinter::printTypeOfAfter(const TypeOfType *T, raw_ostream &OS) {}
972 
973 void TypePrinter::printDecltypeBefore(const DecltypeType *T, raw_ostream &OS) {
974  OS << "decltype(";
975  if (T->getUnderlyingExpr())
976  T->getUnderlyingExpr()->printPretty(OS, nullptr, Policy);
977  OS << ')';
978  spaceBeforePlaceHolder(OS);
979 }
980 
981 void TypePrinter::printDecltypeAfter(const DecltypeType *T, raw_ostream &OS) {}
982 
983 void TypePrinter::printUnaryTransformBefore(const UnaryTransformType *T,
984  raw_ostream &OS) {
985  IncludeStrongLifetimeRAII Strong(Policy);
986 
987  switch (T->getUTTKind()) {
989  OS << "__underlying_type(";
990  print(T->getBaseType(), OS, StringRef());
991  OS << ')';
992  spaceBeforePlaceHolder(OS);
993  return;
994  }
995 
996  printBefore(T->getBaseType(), OS);
997 }
998 
999 void TypePrinter::printUnaryTransformAfter(const UnaryTransformType *T,
1000  raw_ostream &OS) {
1001  IncludeStrongLifetimeRAII Strong(Policy);
1002 
1003  switch (T->getUTTKind()) {
1005  return;
1006  }
1007 
1008  printAfter(T->getBaseType(), OS);
1009 }
1010 
1011 void TypePrinter::printAutoBefore(const AutoType *T, raw_ostream &OS) {
1012  // If the type has been deduced, do not print 'auto'.
1013  if (!T->getDeducedType().isNull()) {
1014  printBefore(T->getDeducedType(), OS);
1015  } else {
1016  switch (T->getKeyword()) {
1017  case AutoTypeKeyword::Auto: OS << "auto"; break;
1018  case AutoTypeKeyword::DecltypeAuto: OS << "decltype(auto)"; break;
1019  case AutoTypeKeyword::GNUAutoType: OS << "__auto_type"; break;
1020  }
1021  spaceBeforePlaceHolder(OS);
1022  }
1023 }
1024 
1025 void TypePrinter::printAutoAfter(const AutoType *T, raw_ostream &OS) {
1026  // If the type has been deduced, do not print 'auto'.
1027  if (!T->getDeducedType().isNull())
1028  printAfter(T->getDeducedType(), OS);
1029 }
1030 
1031 void TypePrinter::printDeducedTemplateSpecializationBefore(
1032  const DeducedTemplateSpecializationType *T, raw_ostream &OS) {
1033  // If the type has been deduced, print the deduced type.
1034  if (!T->getDeducedType().isNull()) {
1035  printBefore(T->getDeducedType(), OS);
1036  } else {
1037  IncludeStrongLifetimeRAII Strong(Policy);
1038  T->getTemplateName().print(OS, Policy);
1039  spaceBeforePlaceHolder(OS);
1040  }
1041 }
1042 
1043 void TypePrinter::printDeducedTemplateSpecializationAfter(
1044  const DeducedTemplateSpecializationType *T, raw_ostream &OS) {
1045  // If the type has been deduced, print the deduced type.
1046  if (!T->getDeducedType().isNull())
1047  printAfter(T->getDeducedType(), OS);
1048 }
1049 
1050 void TypePrinter::printAtomicBefore(const AtomicType *T, raw_ostream &OS) {
1051  IncludeStrongLifetimeRAII Strong(Policy);
1052 
1053  OS << "_Atomic(";
1054  print(T->getValueType(), OS, StringRef());
1055  OS << ')';
1056  spaceBeforePlaceHolder(OS);
1057 }
1058 
1059 void TypePrinter::printAtomicAfter(const AtomicType *T, raw_ostream &OS) {}
1060 
1061 void TypePrinter::printPipeBefore(const PipeType *T, raw_ostream &OS) {
1062  IncludeStrongLifetimeRAII Strong(Policy);
1063 
1064  if (T->isReadOnly())
1065  OS << "read_only ";
1066  else
1067  OS << "write_only ";
1068  OS << "pipe ";
1069  print(T->getElementType(), OS, StringRef());
1070  spaceBeforePlaceHolder(OS);
1071 }
1072 
1073 void TypePrinter::printPipeAfter(const PipeType *T, raw_ostream &OS) {}
1074 
1075 /// Appends the given scope to the end of a string.
1076 void TypePrinter::AppendScope(DeclContext *DC, raw_ostream &OS) {
1077  if (DC->isTranslationUnit()) return;
1078  if (DC->isFunctionOrMethod()) return;
1079  AppendScope(DC->getParent(), OS);
1080 
1081  if (const auto *NS = dyn_cast<NamespaceDecl>(DC)) {
1082  if (Policy.SuppressUnwrittenScope &&
1083  (NS->isAnonymousNamespace() || NS->isInline()))
1084  return;
1085  if (NS->getIdentifier())
1086  OS << NS->getName() << "::";
1087  else
1088  OS << "(anonymous namespace)::";
1089  } else if (const auto *Spec = dyn_cast<ClassTemplateSpecializationDecl>(DC)) {
1090  IncludeStrongLifetimeRAII Strong(Policy);
1091  OS << Spec->getIdentifier()->getName();
1092  const TemplateArgumentList &TemplateArgs = Spec->getTemplateArgs();
1093  printTemplateArgumentList(OS, TemplateArgs.asArray(), Policy);
1094  OS << "::";
1095  } else if (const auto *Tag = dyn_cast<TagDecl>(DC)) {
1096  if (TypedefNameDecl *Typedef = Tag->getTypedefNameForAnonDecl())
1097  OS << Typedef->getIdentifier()->getName() << "::";
1098  else if (Tag->getIdentifier())
1099  OS << Tag->getIdentifier()->getName() << "::";
1100  else
1101  return;
1102  }
1103 }
1104 
1105 void TypePrinter::printTag(TagDecl *D, raw_ostream &OS) {
1106  if (Policy.IncludeTagDefinition) {
1107  PrintingPolicy SubPolicy = Policy;
1108  SubPolicy.IncludeTagDefinition = false;
1109  D->print(OS, SubPolicy, Indentation);
1110  spaceBeforePlaceHolder(OS);
1111  return;
1112  }
1113 
1114  bool HasKindDecoration = false;
1115 
1116  // We don't print tags unless this is an elaborated type.
1117  // In C, we just assume every RecordType is an elaborated type.
1118  if (!Policy.SuppressTagKeyword && !D->getTypedefNameForAnonDecl()) {
1119  HasKindDecoration = true;
1120  OS << D->getKindName();
1121  OS << ' ';
1122  }
1123 
1124  // Compute the full nested-name-specifier for this type.
1125  // In C, this will always be empty except when the type
1126  // being printed is anonymous within other Record.
1127  if (!Policy.SuppressScope)
1128  AppendScope(D->getDeclContext(), OS);
1129 
1130  if (const IdentifierInfo *II = D->getIdentifier())
1131  OS << II->getName();
1132  else if (TypedefNameDecl *Typedef = D->getTypedefNameForAnonDecl()) {
1133  assert(Typedef->getIdentifier() && "Typedef without identifier?");
1134  OS << Typedef->getIdentifier()->getName();
1135  } else {
1136  // Make an unambiguous representation for anonymous types, e.g.
1137  // (anonymous enum at /usr/include/string.h:120:9)
1138  OS << (Policy.MSVCFormatting ? '`' : '(');
1139 
1140  if (isa<CXXRecordDecl>(D) && cast<CXXRecordDecl>(D)->isLambda()) {
1141  OS << "lambda";
1142  HasKindDecoration = true;
1143  } else {
1144  OS << "anonymous";
1145  }
1146 
1147  if (Policy.AnonymousTagLocations) {
1148  // Suppress the redundant tag keyword if we just printed one.
1149  // We don't have to worry about ElaboratedTypes here because you can't
1150  // refer to an anonymous type with one.
1151  if (!HasKindDecoration)
1152  OS << " " << D->getKindName();
1153 
1155  D->getLocation());
1156  if (PLoc.isValid()) {
1157  OS << " at " << PLoc.getFilename()
1158  << ':' << PLoc.getLine()
1159  << ':' << PLoc.getColumn();
1160  }
1161  }
1162 
1163  OS << (Policy.MSVCFormatting ? '\'' : ')');
1164  }
1165 
1166  // If this is a class template specialization, print the template
1167  // arguments.
1168  if (const auto *Spec = dyn_cast<ClassTemplateSpecializationDecl>(D)) {
1170  if (TypeSourceInfo *TAW = Spec->getTypeAsWritten()) {
1171  const TemplateSpecializationType *TST =
1172  cast<TemplateSpecializationType>(TAW->getType());
1173  Args = TST->template_arguments();
1174  } else {
1175  const TemplateArgumentList &TemplateArgs = Spec->getTemplateArgs();
1176  Args = TemplateArgs.asArray();
1177  }
1178  IncludeStrongLifetimeRAII Strong(Policy);
1179  printTemplateArgumentList(OS, Args, Policy);
1180  }
1181 
1182  spaceBeforePlaceHolder(OS);
1183 }
1184 
1185 void TypePrinter::printRecordBefore(const RecordType *T, raw_ostream &OS) {
1186  printTag(T->getDecl(), OS);
1187 }
1188 
1189 void TypePrinter::printRecordAfter(const RecordType *T, raw_ostream &OS) {}
1190 
1191 void TypePrinter::printEnumBefore(const EnumType *T, raw_ostream &OS) {
1192  printTag(T->getDecl(), OS);
1193 }
1194 
1195 void TypePrinter::printEnumAfter(const EnumType *T, raw_ostream &OS) {}
1196 
1197 void TypePrinter::printTemplateTypeParmBefore(const TemplateTypeParmType *T,
1198  raw_ostream &OS) {
1199  if (IdentifierInfo *Id = T->getIdentifier())
1200  OS << Id->getName();
1201  else
1202  OS << "type-parameter-" << T->getDepth() << '-' << T->getIndex();
1203  spaceBeforePlaceHolder(OS);
1204 }
1205 
1206 void TypePrinter::printTemplateTypeParmAfter(const TemplateTypeParmType *T,
1207  raw_ostream &OS) {}
1208 
1209 void TypePrinter::printSubstTemplateTypeParmBefore(
1210  const SubstTemplateTypeParmType *T,
1211  raw_ostream &OS) {
1212  IncludeStrongLifetimeRAII Strong(Policy);
1213  printBefore(T->getReplacementType(), OS);
1214 }
1215 
1216 void TypePrinter::printSubstTemplateTypeParmAfter(
1217  const SubstTemplateTypeParmType *T,
1218  raw_ostream &OS) {
1219  IncludeStrongLifetimeRAII Strong(Policy);
1220  printAfter(T->getReplacementType(), OS);
1221 }
1222 
1223 void TypePrinter::printSubstTemplateTypeParmPackBefore(
1225  raw_ostream &OS) {
1226  IncludeStrongLifetimeRAII Strong(Policy);
1227  printTemplateTypeParmBefore(T->getReplacedParameter(), OS);
1228 }
1229 
1230 void TypePrinter::printSubstTemplateTypeParmPackAfter(
1232  raw_ostream &OS) {
1233  IncludeStrongLifetimeRAII Strong(Policy);
1234  printTemplateTypeParmAfter(T->getReplacedParameter(), OS);
1235 }
1236 
1237 void TypePrinter::printTemplateSpecializationBefore(
1238  const TemplateSpecializationType *T,
1239  raw_ostream &OS) {
1240  IncludeStrongLifetimeRAII Strong(Policy);
1241  T->getTemplateName().print(OS, Policy);
1242 
1244  spaceBeforePlaceHolder(OS);
1245 }
1246 
1247 void TypePrinter::printTemplateSpecializationAfter(
1248  const TemplateSpecializationType *T,
1249  raw_ostream &OS) {}
1250 
1251 void TypePrinter::printInjectedClassNameBefore(const InjectedClassNameType *T,
1252  raw_ostream &OS) {
1253  printTemplateSpecializationBefore(T->getInjectedTST(), OS);
1254 }
1255 
1256 void TypePrinter::printInjectedClassNameAfter(const InjectedClassNameType *T,
1257  raw_ostream &OS) {}
1258 
1259 void TypePrinter::printElaboratedBefore(const ElaboratedType *T,
1260  raw_ostream &OS) {
1261  if (Policy.IncludeTagDefinition && T->getOwnedTagDecl()) {
1262  TagDecl *OwnedTagDecl = T->getOwnedTagDecl();
1263  assert(OwnedTagDecl->getTypeForDecl() == T->getNamedType().getTypePtr() &&
1264  "OwnedTagDecl expected to be a declaration for the type");
1265  PrintingPolicy SubPolicy = Policy;
1266  SubPolicy.IncludeTagDefinition = false;
1267  OwnedTagDecl->print(OS, SubPolicy, Indentation);
1268  spaceBeforePlaceHolder(OS);
1269  return;
1270  }
1271 
1272  // The tag definition will take care of these.
1273  if (!Policy.IncludeTagDefinition)
1274  {
1276  if (T->getKeyword() != ETK_None)
1277  OS << " ";
1278  NestedNameSpecifier *Qualifier = T->getQualifier();
1279  if (Qualifier)
1280  Qualifier->print(OS, Policy);
1281  }
1282 
1283  ElaboratedTypePolicyRAII PolicyRAII(Policy);
1284  printBefore(T->getNamedType(), OS);
1285 }
1286 
1287 void TypePrinter::printElaboratedAfter(const ElaboratedType *T,
1288  raw_ostream &OS) {
1289  if (Policy.IncludeTagDefinition && T->getOwnedTagDecl())
1290  return;
1291  ElaboratedTypePolicyRAII PolicyRAII(Policy);
1292  printAfter(T->getNamedType(), OS);
1293 }
1294 
1295 void TypePrinter::printParenBefore(const ParenType *T, raw_ostream &OS) {
1296  if (!HasEmptyPlaceHolder && !isa<FunctionType>(T->getInnerType())) {
1297  printBefore(T->getInnerType(), OS);
1298  OS << '(';
1299  } else
1300  printBefore(T->getInnerType(), OS);
1301 }
1302 
1303 void TypePrinter::printParenAfter(const ParenType *T, raw_ostream &OS) {
1304  if (!HasEmptyPlaceHolder && !isa<FunctionType>(T->getInnerType())) {
1305  OS << ')';
1306  printAfter(T->getInnerType(), OS);
1307  } else
1308  printAfter(T->getInnerType(), OS);
1309 }
1310 
1311 void TypePrinter::printDependentNameBefore(const DependentNameType *T,
1312  raw_ostream &OS) {
1314  if (T->getKeyword() != ETK_None)
1315  OS << " ";
1316 
1317  T->getQualifier()->print(OS, Policy);
1318 
1319  OS << T->getIdentifier()->getName();
1320  spaceBeforePlaceHolder(OS);
1321 }
1322 
1323 void TypePrinter::printDependentNameAfter(const DependentNameType *T,
1324  raw_ostream &OS) {}
1325 
1326 void TypePrinter::printDependentTemplateSpecializationBefore(
1327  const DependentTemplateSpecializationType *T, raw_ostream &OS) {
1328  IncludeStrongLifetimeRAII Strong(Policy);
1329 
1331  if (T->getKeyword() != ETK_None)
1332  OS << " ";
1333 
1334  if (T->getQualifier())
1335  T->getQualifier()->print(OS, Policy);
1336  OS << T->getIdentifier()->getName();
1338  spaceBeforePlaceHolder(OS);
1339 }
1340 
1341 void TypePrinter::printDependentTemplateSpecializationAfter(
1342  const DependentTemplateSpecializationType *T, raw_ostream &OS) {}
1343 
1344 void TypePrinter::printPackExpansionBefore(const PackExpansionType *T,
1345  raw_ostream &OS) {
1346  printBefore(T->getPattern(), OS);
1347 }
1348 
1349 void TypePrinter::printPackExpansionAfter(const PackExpansionType *T,
1350  raw_ostream &OS) {
1351  printAfter(T->getPattern(), OS);
1352  OS << "...";
1353 }
1354 
1355 void TypePrinter::printAttributedBefore(const AttributedType *T,
1356  raw_ostream &OS) {
1357  // FIXME: Generate this with TableGen.
1358 
1359  // Prefer the macro forms of the GC and ownership qualifiers.
1360  if (T->getAttrKind() == attr::ObjCGC ||
1361  T->getAttrKind() == attr::ObjCOwnership)
1362  return printBefore(T->getEquivalentType(), OS);
1363 
1364  if (T->getAttrKind() == attr::ObjCKindOf)
1365  OS << "__kindof ";
1366 
1367  printBefore(T->getModifiedType(), OS);
1368 
1369  if (T->isMSTypeSpec()) {
1370  switch (T->getAttrKind()) {
1371  default: return;
1372  case attr::Ptr32: OS << " __ptr32"; break;
1373  case attr::Ptr64: OS << " __ptr64"; break;
1374  case attr::SPtr: OS << " __sptr"; break;
1375  case attr::UPtr: OS << " __uptr"; break;
1376  }
1377  spaceBeforePlaceHolder(OS);
1378  }
1379 
1380  // Print nullability type specifiers.
1381  if (T->getImmediateNullability()) {
1382  if (T->getAttrKind() == attr::TypeNonNull)
1383  OS << " _Nonnull";
1384  else if (T->getAttrKind() == attr::TypeNullable)
1385  OS << " _Nullable";
1386  else if (T->getAttrKind() == attr::TypeNullUnspecified)
1387  OS << " _Null_unspecified";
1388  else
1389  llvm_unreachable("unhandled nullability");
1390  spaceBeforePlaceHolder(OS);
1391  }
1392 }
1393 
1394 void TypePrinter::printAttributedAfter(const AttributedType *T,
1395  raw_ostream &OS) {
1396  // FIXME: Generate this with TableGen.
1397 
1398  // Prefer the macro forms of the GC and ownership qualifiers.
1399  if (T->getAttrKind() == attr::ObjCGC ||
1400  T->getAttrKind() == attr::ObjCOwnership)
1401  return printAfter(T->getEquivalentType(), OS);
1402 
1403  // If this is a calling convention attribute, don't print the implicit CC from
1404  // the modified type.
1405  SaveAndRestore<bool> MaybeSuppressCC(InsideCCAttribute, T->isCallingConv());
1406 
1407  printAfter(T->getModifiedType(), OS);
1408 
1409  // Some attributes are printed as qualifiers before the type, so we have
1410  // nothing left to do.
1411  if (T->getAttrKind() == attr::ObjCKindOf ||
1413  return;
1414 
1415  // Don't print the inert __unsafe_unretained attribute at all.
1416  if (T->getAttrKind() == attr::ObjCInertUnsafeUnretained)
1417  return;
1418 
1419  // Don't print ns_returns_retained unless it had an effect.
1420  if (T->getAttrKind() == attr::NSReturnsRetained &&
1422  ->getExtInfo().getProducesResult())
1423  return;
1424 
1425  if (T->getAttrKind() == attr::LifetimeBound) {
1426  OS << " [[clang::lifetimebound]]";
1427  return;
1428  }
1429 
1430  // The printing of the address_space attribute is handled by the qualifier
1431  // since it is still stored in the qualifier. Return early to prevent printing
1432  // this twice.
1433  if (T->getAttrKind() == attr::AddressSpace)
1434  return;
1435 
1436  OS << " __attribute__((";
1437  switch (T->getAttrKind()) {
1438 #define TYPE_ATTR(NAME)
1439 #define DECL_OR_TYPE_ATTR(NAME)
1440 #define ATTR(NAME) case attr::NAME:
1441 #include "clang/Basic/AttrList.inc"
1442  llvm_unreachable("non-type attribute attached to type");
1443 
1444  case attr::OpenCLPrivateAddressSpace:
1445  case attr::OpenCLGlobalAddressSpace:
1446  case attr::OpenCLLocalAddressSpace:
1447  case attr::OpenCLConstantAddressSpace:
1448  case attr::OpenCLGenericAddressSpace:
1449  // FIXME: Update printAttributedBefore to print these once we generate
1450  // AttributedType nodes for them.
1451  break;
1452 
1453  case attr::LifetimeBound:
1454  case attr::TypeNonNull:
1455  case attr::TypeNullable:
1456  case attr::TypeNullUnspecified:
1457  case attr::ObjCGC:
1458  case attr::ObjCInertUnsafeUnretained:
1459  case attr::ObjCKindOf:
1460  case attr::ObjCOwnership:
1461  case attr::Ptr32:
1462  case attr::Ptr64:
1463  case attr::SPtr:
1464  case attr::UPtr:
1465  case attr::AddressSpace:
1466  llvm_unreachable("This attribute should have been handled already");
1467 
1468  case attr::NSReturnsRetained:
1469  OS << "ns_returns_retained";
1470  break;
1471 
1472  // FIXME: When Sema learns to form this AttributedType, avoid printing the
1473  // attribute again in printFunctionProtoAfter.
1474  case attr::AnyX86NoCfCheck: OS << "nocf_check"; break;
1475  case attr::CDecl: OS << "cdecl"; break;
1476  case attr::FastCall: OS << "fastcall"; break;
1477  case attr::StdCall: OS << "stdcall"; break;
1478  case attr::ThisCall: OS << "thiscall"; break;
1479  case attr::SwiftCall: OS << "swiftcall"; break;
1480  case attr::VectorCall: OS << "vectorcall"; break;
1481  case attr::Pascal: OS << "pascal"; break;
1482  case attr::MSABI: OS << "ms_abi"; break;
1483  case attr::SysVABI: OS << "sysv_abi"; break;
1484  case attr::RegCall: OS << "regcall"; break;
1485  case attr::Pcs: {
1486  OS << "pcs(";
1487  QualType t = T->getEquivalentType();
1488  while (!t->isFunctionType())
1489  t = t->getPointeeType();
1490  OS << (t->getAs<FunctionType>()->getCallConv() == CC_AAPCS ?
1491  "\"aapcs\"" : "\"aapcs-vfp\"");
1492  OS << ')';
1493  break;
1494  }
1495 
1496  case attr::IntelOclBicc: OS << "inteloclbicc"; break;
1497  case attr::PreserveMost:
1498  OS << "preserve_most";
1499  break;
1500 
1501  case attr::PreserveAll:
1502  OS << "preserve_all";
1503  break;
1504  }
1505  OS << "))";
1506 }
1507 
1508 void TypePrinter::printObjCInterfaceBefore(const ObjCInterfaceType *T,
1509  raw_ostream &OS) {
1510  OS << T->getDecl()->getName();
1511  spaceBeforePlaceHolder(OS);
1512 }
1513 
1514 void TypePrinter::printObjCInterfaceAfter(const ObjCInterfaceType *T,
1515  raw_ostream &OS) {}
1516 
1517 void TypePrinter::printObjCTypeParamBefore(const ObjCTypeParamType *T,
1518  raw_ostream &OS) {
1519  OS << T->getDecl()->getName();
1520  if (!T->qual_empty()) {
1521  bool isFirst = true;
1522  OS << '<';
1523  for (const auto *I : T->quals()) {
1524  if (isFirst)
1525  isFirst = false;
1526  else
1527  OS << ',';
1528  OS << I->getName();
1529  }
1530  OS << '>';
1531  }
1532 
1533  spaceBeforePlaceHolder(OS);
1534 }
1535 
1536 void TypePrinter::printObjCTypeParamAfter(const ObjCTypeParamType *T,
1537  raw_ostream &OS) {}
1538 
1539 void TypePrinter::printObjCObjectBefore(const ObjCObjectType *T,
1540  raw_ostream &OS) {
1541  if (T->qual_empty() && T->isUnspecializedAsWritten() &&
1542  !T->isKindOfTypeAsWritten())
1543  return printBefore(T->getBaseType(), OS);
1544 
1545  if (T->isKindOfTypeAsWritten())
1546  OS << "__kindof ";
1547 
1548  print(T->getBaseType(), OS, StringRef());
1549 
1550  if (T->isSpecializedAsWritten()) {
1551  bool isFirst = true;
1552  OS << '<';
1553  for (auto typeArg : T->getTypeArgsAsWritten()) {
1554  if (isFirst)
1555  isFirst = false;
1556  else
1557  OS << ",";
1558 
1559  print(typeArg, OS, StringRef());
1560  }
1561  OS << '>';
1562  }
1563 
1564  if (!T->qual_empty()) {
1565  bool isFirst = true;
1566  OS << '<';
1567  for (const auto *I : T->quals()) {
1568  if (isFirst)
1569  isFirst = false;
1570  else
1571  OS << ',';
1572  OS << I->getName();
1573  }
1574  OS << '>';
1575  }
1576 
1577  spaceBeforePlaceHolder(OS);
1578 }
1579 
1580 void TypePrinter::printObjCObjectAfter(const ObjCObjectType *T,
1581  raw_ostream &OS) {
1582  if (T->qual_empty() && T->isUnspecializedAsWritten() &&
1583  !T->isKindOfTypeAsWritten())
1584  return printAfter(T->getBaseType(), OS);
1585 }
1586 
1587 void TypePrinter::printObjCObjectPointerBefore(const ObjCObjectPointerType *T,
1588  raw_ostream &OS) {
1589  printBefore(T->getPointeeType(), OS);
1590 
1591  // If we need to print the pointer, print it now.
1592  if (!T->isObjCIdType() && !T->isObjCQualifiedIdType() &&
1593  !T->isObjCClassType() && !T->isObjCQualifiedClassType()) {
1594  if (HasEmptyPlaceHolder)
1595  OS << ' ';
1596  OS << '*';
1597  }
1598 }
1599 
1600 void TypePrinter::printObjCObjectPointerAfter(const ObjCObjectPointerType *T,
1601  raw_ostream &OS) {}
1602 
1603 static
1604 const TemplateArgument &getArgument(const TemplateArgument &A) { return A; }
1605 
1606 static const TemplateArgument &getArgument(const TemplateArgumentLoc &A) {
1607  return A.getArgument();
1608 }
1609 
1610 template<typename TA>
1611 static void printTo(raw_ostream &OS, ArrayRef<TA> Args,
1612  const PrintingPolicy &Policy, bool SkipBrackets) {
1613  const char *Comma = Policy.MSVCFormatting ? "," : ", ";
1614  if (!SkipBrackets)
1615  OS << '<';
1616 
1617  bool NeedSpace = false;
1618  bool FirstArg = true;
1619  for (const auto &Arg : Args) {
1620  // Print the argument into a string.
1621  SmallString<128> Buf;
1622  llvm::raw_svector_ostream ArgOS(Buf);
1623  const TemplateArgument &Argument = getArgument(Arg);
1624  if (Argument.getKind() == TemplateArgument::Pack) {
1625  if (Argument.pack_size() && !FirstArg)
1626  OS << Comma;
1627  printTo(ArgOS, Argument.getPackAsArray(), Policy, true);
1628  } else {
1629  if (!FirstArg)
1630  OS << Comma;
1631  Argument.print(Policy, ArgOS);
1632  }
1633  StringRef ArgString = ArgOS.str();
1634 
1635  // If this is the first argument and its string representation
1636  // begins with the global scope specifier ('::foo'), add a space
1637  // to avoid printing the diagraph '<:'.
1638  if (FirstArg && !ArgString.empty() && ArgString[0] == ':')
1639  OS << ' ';
1640 
1641  OS << ArgString;
1642 
1643  NeedSpace = (!ArgString.empty() && ArgString.back() == '>');
1644  FirstArg = false;
1645  }
1646 
1647  // If the last character of our string is '>', add another space to
1648  // keep the two '>''s separate tokens. We don't *have* to do this in
1649  // C++0x, but it's still good hygiene.
1650  if (NeedSpace)
1651  OS << ' ';
1652 
1653  if (!SkipBrackets)
1654  OS << '>';
1655 }
1656 
1657 void clang::printTemplateArgumentList(raw_ostream &OS,
1658  const TemplateArgumentListInfo &Args,
1659  const PrintingPolicy &Policy) {
1660  return printTo(OS, Args.arguments(), Policy, false);
1661 }
1662 
1663 void clang::printTemplateArgumentList(raw_ostream &OS,
1664  ArrayRef<TemplateArgument> Args,
1665  const PrintingPolicy &Policy) {
1666  printTo(OS, Args, Policy, false);
1667 }
1668 
1669 void clang::printTemplateArgumentList(raw_ostream &OS,
1670  ArrayRef<TemplateArgumentLoc> Args,
1671  const PrintingPolicy &Policy) {
1672  printTo(OS, Args, Policy, false);
1673 }
1674 
1675 std::string Qualifiers::getAsString() const {
1676  LangOptions LO;
1677  return getAsString(PrintingPolicy(LO));
1678 }
1679 
1680 // Appends qualifiers to the given string, separated by spaces. Will
1681 // prefix a space if the string is non-empty. Will not append a final
1682 // space.
1683 std::string Qualifiers::getAsString(const PrintingPolicy &Policy) const {
1684  SmallString<64> Buf;
1685  llvm::raw_svector_ostream StrOS(Buf);
1686  print(StrOS, Policy);
1687  return StrOS.str();
1688 }
1689 
1690 bool Qualifiers::isEmptyWhenPrinted(const PrintingPolicy &Policy) const {
1691  if (getCVRQualifiers())
1692  return false;
1693 
1694  if (getAddressSpace() != LangAS::Default)
1695  return false;
1696 
1697  if (getObjCGCAttr())
1698  return false;
1699 
1700  if (Qualifiers::ObjCLifetime lifetime = getObjCLifetime())
1701  if (!(lifetime == Qualifiers::OCL_Strong && Policy.SuppressStrongLifetime))
1702  return false;
1703 
1704  return true;
1705 }
1706 
1707 // Appends qualifiers to the given string, separated by spaces. Will
1708 // prefix a space if the string is non-empty. Will not append a final
1709 // space.
1710 void Qualifiers::print(raw_ostream &OS, const PrintingPolicy& Policy,
1711  bool appendSpaceIfNonEmpty) const {
1712  bool addSpace = false;
1713 
1714  unsigned quals = getCVRQualifiers();
1715  if (quals) {
1716  AppendTypeQualList(OS, quals, Policy.Restrict);
1717  addSpace = true;
1718  }
1719  if (hasUnaligned()) {
1720  if (addSpace)
1721  OS << ' ';
1722  OS << "__unaligned";
1723  addSpace = true;
1724  }
1725  LangAS addrspace = getAddressSpace();
1726  if (addrspace != LangAS::Default) {
1727  if (addrspace != LangAS::opencl_private) {
1728  if (addSpace)
1729  OS << ' ';
1730  addSpace = true;
1731  switch (addrspace) {
1732  case LangAS::opencl_global:
1733  OS << "__global";
1734  break;
1735  case LangAS::opencl_local:
1736  OS << "__local";
1737  break;
1738  case LangAS::opencl_private:
1739  break;
1740  case LangAS::opencl_constant:
1741  case LangAS::cuda_constant:
1742  OS << "__constant";
1743  break;
1744  case LangAS::opencl_generic:
1745  OS << "__generic";
1746  break;
1747  case LangAS::cuda_device:
1748  OS << "__device";
1749  break;
1750  case LangAS::cuda_shared:
1751  OS << "__shared";
1752  break;
1753  default:
1754  OS << "__attribute__((address_space(";
1755  OS << toTargetAddressSpace(addrspace);
1756  OS << ")))";
1757  }
1758  }
1759  }
1760  if (Qualifiers::GC gc = getObjCGCAttr()) {
1761  if (addSpace)
1762  OS << ' ';
1763  addSpace = true;
1764  if (gc == Qualifiers::Weak)
1765  OS << "__weak";
1766  else
1767  OS << "__strong";
1768  }
1769  if (Qualifiers::ObjCLifetime lifetime = getObjCLifetime()) {
1770  if (!(lifetime == Qualifiers::OCL_Strong && Policy.SuppressStrongLifetime)){
1771  if (addSpace)
1772  OS << ' ';
1773  addSpace = true;
1774  }
1775 
1776  switch (lifetime) {
1777  case Qualifiers::OCL_None: llvm_unreachable("none but true");
1778  case Qualifiers::OCL_ExplicitNone: OS << "__unsafe_unretained"; break;
1779  case Qualifiers::OCL_Strong:
1780  if (!Policy.SuppressStrongLifetime)
1781  OS << "__strong";
1782  break;
1783 
1784  case Qualifiers::OCL_Weak: OS << "__weak"; break;
1785  case Qualifiers::OCL_Autoreleasing: OS << "__autoreleasing"; break;
1786  }
1787  }
1788 
1789  if (appendSpaceIfNonEmpty && addSpace)
1790  OS << ' ';
1791 }
1792 
1793 std::string QualType::getAsString() const {
1794  return getAsString(split(), LangOptions());
1795 }
1796 
1797 std::string QualType::getAsString(const PrintingPolicy &Policy) const {
1798  std::string S;
1799  getAsStringInternal(S, Policy);
1800  return S;
1801 }
1802 
1803 std::string QualType::getAsString(const Type *ty, Qualifiers qs,
1804  const PrintingPolicy &Policy) {
1805  std::string buffer;
1806  getAsStringInternal(ty, qs, buffer, Policy);
1807  return buffer;
1808 }
1809 
1810 void QualType::print(const Type *ty, Qualifiers qs,
1811  raw_ostream &OS, const PrintingPolicy &policy,
1812  const Twine &PlaceHolder, unsigned Indentation) {
1813  SmallString<128> PHBuf;
1814  StringRef PH = PlaceHolder.toStringRef(PHBuf);
1815 
1816  TypePrinter(policy, Indentation).print(ty, qs, OS, PH);
1817 }
1818 
1819 void QualType::getAsStringInternal(const Type *ty, Qualifiers qs,
1820  std::string &buffer,
1821  const PrintingPolicy &policy) {
1822  SmallString<256> Buf;
1823  llvm::raw_svector_ostream StrOS(Buf);
1824  TypePrinter(policy).print(ty, qs, StrOS, buffer);
1825  std::string str = StrOS.str();
1826  buffer.swap(str);
1827 }
static StringRef getKeywordName(ElaboratedTypeKeyword Keyword)
Definition: Type.cpp:2573
ParameterABI getABI() const
Return the ABI treatment of this parameter.
Definition: Type.h:3584
QualType getPattern() const
Retrieve the pattern of this pack expansion, which is the type that will be repeatedly instantiated w...
Definition: Type.h:5257
Defines the clang::ASTContext interface.
QualType getDeducedType() const
Get the type deduced for this placeholder type, or null if it&#39;s either not been deduced or was deduce...
Definition: Type.h:4618
Represents a type that was referred to using an elaborated type keyword, e.g., struct S...
Definition: Type.h:5010
const Type * Ty
The locally-unqualified type.
Definition: Type.h:583
static void AppendTypeQualList(raw_ostream &OS, unsigned TypeQuals, bool HasRestrictKeyword)
const TemplateSpecializationType * getInjectedTST() const
Definition: Type.h:4893
StringRef getName(const PrintingPolicy &Policy) const
Definition: Type.cpp:2647
RefQualifierKind getRefQualifier() const
Retrieve the ref-qualifier associated with this function type.
Definition: Type.h:3907
PointerType - C99 6.7.5.1 - Pointer Declarators.
Definition: Type.h:2511
QualType getElementType() const
Definition: Type.h:5897
QualType getPointeeType() const
Definition: Type.h:2524
Represents the dependent type named by a dependently-scoped typename using declaration, e.g.
Definition: Type.h:4004
A (possibly-)qualified type.
Definition: Type.h:642
bool getNoCfCheck() const
Definition: Type.h:3403
__auto_type (GNU extension)
Expr * getUnderlyingExpr() const
Definition: Type.h:4139
FunctionType - C99 6.7.5.3 - Function Declarators.
Definition: Type.h:3329
QualType getPointeeType() const
If this is a pointer, ObjC object pointer, or block pointer, this returns the respective pointee...
Definition: Type.cpp:497
C Language Family Type Representation.
Defines the SourceManager interface.
Represents a qualified type name for which the type name is dependent.
Definition: Type.h:5093
NestedNameSpecifier * getQualifier() const
Retrieve the qualification on this type.
Definition: Type.h:5112
const Type * getTypeForDecl() const
Definition: Decl.h:2875
bool isVariadic() const
Definition: Type.h:3892
Defines the C++ template declaration subclasses.
Represents a C++11 auto or C++14 decltype(auto) type.
Definition: Type.h:4632
The base class of the type hierarchy.
Definition: Type.h:1415
A container of type source information.
Definition: Decl.h:86
QualType getValueType() const
Gets the type contained by this atomic type, i.e.
Definition: Type.h:5864
void printExceptionSpecification(raw_ostream &OS, const PrintingPolicy &Policy) const
QualType getElementType() const
Definition: Type.h:2821
TemplateName getTemplateName() const
Retrieve the name of the template that we are deducing.
Definition: Type.h:4686
unsigned getNumParams() const
Definition: Type.h:3786
const T * getAs() const
Member-template getAs<specific type>&#39;.
Definition: Type.h:6590
Represents a C++17 deduced template specialization type.
Definition: Type.h:4668
bool isCallingConv() const
Definition: Type.cpp:3193
Describes how types, statements, expressions, and declarations should be printed. ...
Definition: PrettyPrinter.h:38
Represents the result of substituting a type for a template type parameter.
Definition: Type.h:4486
The collection of all-type qualifiers we support.
Definition: Type.h:141
bool isNoexceptExceptionSpec(ExceptionSpecificationType ESpecType)
PipeType - OpenCL20.
Definition: Type.h:5883
IdentifierInfo * getIdentifier() const
Get the identifier that names this declaration, if there is one.
Definition: Decl.h:269
One of these records is kept for each identifier that is lexed.
unsigned SuppressLifetimeQualifiers
When true, suppress printing of lifetime qualifier in ARC.
void print(raw_ostream &OS, const PrintingPolicy &Policy, bool SuppressNNS=false) const
Print the template name.
unsigned getRegParm() const
Definition: Type.h:3406
void print(raw_ostream &Out, unsigned Indentation=0, bool PrintInstantiation=false) const
QualType getPointeeType() const
Definition: Type.h:2628
is ARM Neon vector
Definition: Type.h:3158
bool isObjCIdType() const
Definition: Type.h:6303
TemplateName getTemplateName() const
Retrieve the name of the template that we are specializing.
Definition: Type.h:4787
Defines the ExceptionSpecificationType enumeration and various utility functions. ...
Represents the result of substituting a set of types for a template type parameter pack...
Definition: Type.h:4542
TagDecl * getOwnedTagDecl() const
Return the (re)declaration of this type owned by this occurrence of this type, or nullptr if there is...
Definition: Type.h:5060
bool isObjCQualifiedClassType() const
Definition: Type.h:6297
unsigned getTypeQuals() const
Definition: Type.h:3904
unsigned SuppressStrongLifetime
When true, suppress printing of the __strong lifetime qualifier in ARC.
bool getProducesResult() const
Definition: Type.h:3401
This parameter (which must have pointer type) uses the special Swift context-pointer ABI treatment...
An rvalue reference type, per C++11 [dcl.ref].
Definition: Type.h:2712
UnresolvedUsingTypenameDecl * getDecl() const
Definition: Type.h:4015
bool isMSTypeSpec() const
Definition: Type.cpp:3180
An lvalue ref-qualifier was provided (&).
Definition: Type.h:1371
Microsoft throw(...) extension.
Forward-declares and imports various common LLVM datatypes that clang wants to use unqualified...
Represents a typeof (or typeof) expression (a GCC extension).
Definition: Type.h:4059
const Type * getClass() const
Definition: Type.h:2764
Expr * getSizeExpr() const
Definition: Type.h:2965
const Type * getTypePtr() const
Retrieves a pointer to the underlying (unqualified) type.
Definition: Type.h:5953
bool getNoReturn() const
Definition: Type.h:3400
is ARM Neon polynomial vector
Definition: Type.h:3161
Expr * getSizeExpr() const
Definition: Type.h:3022
bool getNoCallerSavedRegs() const
Definition: Type.h:3402
QualType getPointeeTypeAsWritten() const
Definition: Type.h:2666
Expr * getSizeExpr() const
Definition: Type.h:3232
QualType getElementType() const
Definition: Type.h:3118
This parameter (which must have pointer-to-pointer type) uses the special Swift error-result ABI trea...
Represents an extended vector type where either the type or size is dependent.
Definition: Type.h:3102
unsigned IncludeTagDefinition
When true, include the body of a tag definition.
Represents a K&R-style &#39;int foo()&#39; function, which has no information available about its arguments...
Definition: Type.h:3515
Expr * getAddrSpaceExpr() const
Definition: Type.h:3073
Provides definitions for the various language-specific address spaces.
llvm::StringRef getParameterABISpelling(ParameterABI kind)
Represents a prototype with parameter type info, e.g.
Definition: Type.h:3550
qual_range quals() const
Definition: Type.h:5319
ObjCTypeParamDecl * getDecl() const
Definition: Type.h:5388
void print(raw_ostream &OS, const PrintingPolicy &Policy) const
Print this nested name specifier to the given output stream.
Represents an array type in C++ whose size is a value-dependent expression.
Definition: Type.h:3000
bool isValid() const
QualType getElementType() const
Definition: Type.h:2464
unsigned SuppressTagKeyword
Whether type printing should skip printing the tag keyword.
Definition: PrettyPrinter.h:94
IdentifierInfo * getIdentifier() const
Definition: Type.cpp:3220
Defines the clang::LangOptions interface.
StringRef getKindName() const
Definition: Decl.h:3216
int Id
Definition: ASTDiff.cpp:191
unsigned getIndex() const
Definition: Type.h:4449
const T * castAs() const
Member-template castAs<specific type>.
Definition: Type.h:6653
unsigned getLine() const
Return the presumed line number of this location.
void print(raw_ostream &OS, const PrintingPolicy &Policy, bool appendSpaceIfNonEmpty=false) const
bool isObjCClassType() const
Definition: Type.h:6309
DeclContext * getDeclContext()
Definition: DeclBase.h:427
QualType getBaseType() const
Definition: Type.h:4198
const IdentifierInfo * getIdentifier() const
Retrieve the type named by the typename specifier as an identifier.
Definition: Type.h:5119
ArrayRef< TemplateArgument > asArray() const
Produce this as an array ref.
Definition: DeclTemplate.h:264
Represents the type decltype(expr) (C++11).
Definition: Type.h:4129
void printTemplateArgumentList(raw_ostream &OS, ArrayRef< TemplateArgument > Args, const PrintingPolicy &Policy)
Print a template argument list, including the &#39;<&#39; and &#39;>&#39; enclosing the template arguments.
A std::pair-like structure for storing a qualified type split into its local qualifiers and its local...
Definition: Type.h:581
Defines the clang::IdentifierInfo, clang::IdentifierTable, and clang::Selector interfaces.
bool isFunctionOrMethod() const
Definition: DeclBase.h:1800
A unary type transform, which is a type constructed from another.
Definition: Type.h:4172
Qualifiers Quals
The local qualifiers.
Definition: Type.h:586
bool isSpecifierType() const
Returns true if this type can be represented by some set of type specifiers.
Definition: Type.cpp:2479
DeclContext * getParent()
getParent - Returns the containing DeclContext.
Definition: DeclBase.h:1752
Represents an unpacked "presumed" location which can be presented to the user.
Represents a GCC generic vector type.
Definition: Type.h:3142
ArraySizeModifier getSizeModifier() const
Definition: Type.h:2823
An lvalue reference type, per C++11 [dcl.ref].
Definition: Type.h:2694
unsigned SuppressSpecifiers
Whether we should suppress printing of the actual specifiers for the given type or declaration...
Definition: PrettyPrinter.h:84
UTTKind getUTTKind() const
Definition: Type.h:4200
bool isNull() const
Return true if this QualType doesn&#39;t point to a type yet.
Definition: Type.h:707
Expr * getUnderlyingExpr() const
Definition: Type.h:4068
bool hasTrailingReturn() const
Definition: Type.h:3902
bool hasQualifiers() const
Return true if the set contains any qualifiers.
Definition: Type.h:417
SplitQualType split() const
Divides a QualType into its unqualified type and a set of local qualifiers.
Definition: Type.h:5961
RecordDecl * getDecl() const
Definition: Type.h:4263
const char * getFilename() const
Return the presumed filename of this location.
bool isComputedNoexcept(ExceptionSpecificationType ESpecType)
is AltiVec &#39;vector Pixel&#39;
Definition: Type.h:3152
not a target-specific vector type
Definition: Type.h:3146
ExtParameterInfo getExtParameterInfo(unsigned I) const
Definition: Type.h:3961
ElaboratedTypeKeyword getKeyword() const
Definition: Type.h:4971
unsigned getColumn() const
Return the presumed column number of this location.
ObjCInterfaceDecl * getDecl() const
Get the declaration of this interface.
Definition: Type.h:5632
Sugar for parentheses used when specifying types.
Definition: Type.h:2481
QualType getAdjustedType() const
Definition: Type.h:2576
QualType getReturnType() const
Definition: Type.h:3483
A helper class that allows the use of isa/cast/dyncast to detect TagType objects of enums...
Definition: Type.h:4279
Represents typeof(type), a GCC extension.
Definition: Type.h:4102
Interfaces are the core concept in Objective-C for object oriented design.
Definition: Type.h:5619
unsigned SuppressScope
Suppresses printing of scope specifiers.
Represents the declaration of a struct/union/class/enum.
Definition: Decl.h:3041
ASTContext & getASTContext() const LLVM_READONLY
Definition: DeclBase.cpp:376
CallingConv getCC() const
Definition: Type.h:3413
QualType getElementType() const
Definition: Type.h:3177
Represents a vector type where either the type or size is dependent.
Definition: Type.h:3219
Represents a C++ nested name specifier, such as "\::std::vector<int>::".
No ref-qualifier was provided.
Definition: Type.h:1368
const TemplateTypeParmType * getReplacedParameter() const
Gets the template parameter that was substituted for.
Definition: Type.h:4560
QualType getEquivalentType() const
Definition: Type.h:4334
QualType getInnerType() const
Definition: Type.h:2494
is AltiVec &#39;vector bool ...&#39;
Definition: Type.h:3155
NestedNameSpecifier * getQualifier() const
Retrieve the qualification on this type.
Definition: Type.h:5047
is AltiVec vector
Definition: Type.h:3149
AutoTypeKeyword getKeyword() const
Definition: Type.h:4647
Qualifiers getIndexTypeQualifiers() const
Definition: Type.h:2827
TypeClass getTypeClass() const
Definition: Type.h:1796
ArrayRef< TemplateArgument > template_arguments() const
Definition: Type.h:5186
EnumDecl * getDecl() const
Definition: Type.h:4286
An rvalue ref-qualifier was provided (&&).
Definition: Type.h:1374
ParameterABI
Kinds of parameter ABI.
Definition: Specifiers.h:308
Represents a pointer type decayed from an array or function type.
Definition: Type.h:2596
The injected class name of a C++ class template or class template partial specialization.
Definition: Type.h:4859
QualType getPointeeType() const
Definition: Type.h:3074
Represents a pack expansion of types.
Definition: Type.h:5236
Defines various enumerations that describe declaration and type specifiers.
StringRef getName() const
Return the actual identifier string.
Base class for declarations which introduce a typedef-name.
Definition: Decl.h:2893
Represents a type which was implicitly adjusted by the semantic engine for arbitrary reasons...
Definition: Type.h:2559
Dataflow Directional Tag Classes.
ExtInfo getExtInfo() const
Definition: Type.h:3494
NestedNameSpecifier * getQualifier() const
Definition: Type.h:5171
DeclContext - This is used only as base class of specific decl types that can act as declaration cont...
Definition: DeclBase.h:1262
VectorKind getVectorKind() const
Definition: Type.h:3187
PresumedLoc getPresumedLoc(SourceLocation Loc, bool UseLineDirectives=true) const
Returns the "presumed" location of a SourceLocation specifies.
A pointer to member type per C++ 8.3.3 - Pointers to members.
Definition: Type.h:2730
QualType getModifiedType() const
Definition: Type.h:4333
Pointer to a block type.
Definition: Type.h:2613
A helper class that allows the use of isa/cast/dyncast to detect TagType objects of structs/unions/cl...
Definition: Type.h:4253
Complex values, per C99 6.2.5p11.
Definition: Type.h:2451
unsigned getIndexTypeCVRQualifiers() const
Definition: Type.h:2831
bool empty() const
Definition: Type.h:418
const llvm::APInt & getSize() const
Definition: Type.h:2864
Kind getAttrKind() const
Definition: Type.h:4329
bool isFunctionType() const
Definition: Type.h:6173
bool isObjCQualifiedIdType() const
Definition: Type.h:6291
ExtVectorType - Extended vector type.
Definition: Type.h:3261
Base for LValueReferenceType and RValueReferenceType.
Definition: Type.h:2647
bool isEmptyWhenPrinted(const PrintingPolicy &Policy) const
QualType getUnderlyingType() const
Definition: Type.h:4117
SourceManager & getSourceManager()
Definition: ASTContext.h:671
A template argument list.
Definition: DeclTemplate.h:210
VectorType::VectorKind getVectorKind() const
Definition: Type.h:3235
TypedefNameDecl * getDecl() const
Definition: Type.h:4050
unsigned getDepth() const
Definition: Type.h:4448
An attributed type is a type to which a type attribute has been applied.
Definition: Type.h:4308
Defines the C++ Decl subclasses, other than those for templates (found in DeclTemplate.h) and friends (in DeclFriend.h).
QualType getParamType(unsigned i) const
Definition: Type.h:3788
Represents a type parameter type in Objective C.
Definition: Type.h:5345
void printPretty(raw_ostream &OS, PrinterHelper *Helper, const PrintingPolicy &Policy, unsigned Indentation=0, StringRef NewlineSymbol="\, const ASTContext *Context=nullptr) const
Defines the clang::SourceLocation class and associated facilities.
TypedefNameDecl * getTypedefNameForAnonDecl() const
Definition: Decl.h:3251
Represents a template specialization type whose template cannot be resolved, e.g. ...
Definition: Type.h:5145
ArrayRef< TemplateArgument > template_arguments() const
Definition: Type.h:4803
Represents a C array with an unspecified size.
Definition: Type.h:2900
Qualifiers getQualifiers() const
Retrieve the set of qualifiers applied to this type.
Definition: Type.h:5980
QualType getNamedType() const
Retrieve the type named by the qualified-id.
Definition: Type.h:5050
QualType getReplacementType() const
Gets the type that was substituted for the template parameter.
Definition: Type.h:4507
This class is used for builtin types like &#39;int&#39;.
Definition: Type.h:2368
static QualType skipTopLevelReferences(QualType T)
bool qual_empty() const
Definition: Type.h:5323
StringRef getName() const
Get the name of identifier for this declaration as a StringRef.
Definition: Decl.h:275
unsigned getNumElements() const
Definition: Type.h:3178
bool isReadOnly() const
Definition: Type.h:5916
Represents an extended address space qualifier where the input address space value is dependent...
Definition: Type.h:3060
Represents a type template specialization; the template must be a class template, a type alias templa...
Definition: Type.h:4724
This represents a decl that may have a name.
Definition: Decl.h:248
bool isTranslationUnit() const
Definition: DeclBase.h:1823
Represents a C array with a specified size that is not an integer-constant-expression.
Definition: Type.h:2945
No keyword precedes the qualified type name.
Definition: Type.h:4952
QualType getElementType() const
Definition: Type.h:3233
llvm::Optional< NullabilityKind > getImmediateNullability() const
Definition: Type.cpp:3781
Represents the canonical version of C arrays with a specified constant size.
Definition: Type.h:2846
A class which abstracts out some details necessary for making a call.
Definition: Type.h:3354
SourceLocation getLocation() const
Definition: DeclBase.h:418
QualType getPointeeType() const
Definition: Type.h:2750
This parameter (which must have pointer type) is a Swift indirect result parameter.
const IdentifierInfo * getIdentifier() const
Definition: Type.h:5172