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RecursiveASTVisitor.h
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1 //===--- RecursiveASTVisitor.h - Recursive AST Visitor ----------*- C++ -*-===//
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 defines the RecursiveASTVisitor interface, which recursively
10 // traverses the entire AST.
11 //
12 //===----------------------------------------------------------------------===//
13 #ifndef LLVM_CLANG_AST_RECURSIVEASTVISITOR_H
14 #define LLVM_CLANG_AST_RECURSIVEASTVISITOR_H
15 
16 #include "clang/AST/Attr.h"
17 #include "clang/AST/Decl.h"
19 #include "clang/AST/DeclBase.h"
20 #include "clang/AST/DeclCXX.h"
21 #include "clang/AST/DeclFriend.h"
22 #include "clang/AST/DeclObjC.h"
23 #include "clang/AST/DeclOpenMP.h"
24 #include "clang/AST/DeclTemplate.h"
25 #include "clang/AST/Expr.h"
26 #include "clang/AST/ExprCXX.h"
27 #include "clang/AST/ExprObjC.h"
28 #include "clang/AST/ExprOpenMP.h"
31 #include "clang/AST/OpenMPClause.h"
32 #include "clang/AST/Stmt.h"
33 #include "clang/AST/StmtCXX.h"
34 #include "clang/AST/StmtObjC.h"
35 #include "clang/AST/StmtOpenMP.h"
36 #include "clang/AST/TemplateBase.h"
37 #include "clang/AST/TemplateName.h"
38 #include "clang/AST/Type.h"
39 #include "clang/AST/TypeLoc.h"
40 #include "clang/Basic/LLVM.h"
42 #include "clang/Basic/Specifiers.h"
43 #include "llvm/ADT/PointerIntPair.h"
44 #include "llvm/ADT/SmallVector.h"
45 #include "llvm/Support/Casting.h"
46 #include <algorithm>
47 #include <cstddef>
48 #include <type_traits>
49 
50 // The following three macros are used for meta programming. The code
51 // using them is responsible for defining macro OPERATOR().
52 
53 // All unary operators.
54 #define UNARYOP_LIST() \
55  OPERATOR(PostInc) OPERATOR(PostDec) OPERATOR(PreInc) OPERATOR(PreDec) \
56  OPERATOR(AddrOf) OPERATOR(Deref) OPERATOR(Plus) OPERATOR(Minus) \
57  OPERATOR(Not) OPERATOR(LNot) OPERATOR(Real) OPERATOR(Imag) \
58  OPERATOR(Extension) OPERATOR(Coawait)
59 
60 // All binary operators (excluding compound assign operators).
61 #define BINOP_LIST() \
62  OPERATOR(PtrMemD) OPERATOR(PtrMemI) OPERATOR(Mul) OPERATOR(Div) \
63  OPERATOR(Rem) OPERATOR(Add) OPERATOR(Sub) OPERATOR(Shl) OPERATOR(Shr) \
64  OPERATOR(LT) OPERATOR(GT) OPERATOR(LE) OPERATOR(GE) OPERATOR(EQ) \
65  OPERATOR(NE) OPERATOR(Cmp) OPERATOR(And) OPERATOR(Xor) OPERATOR(Or) \
66  OPERATOR(LAnd) OPERATOR(LOr) OPERATOR(Assign) OPERATOR(Comma)
67 
68 // All compound assign operators.
69 #define CAO_LIST() \
70  OPERATOR(Mul) OPERATOR(Div) OPERATOR(Rem) OPERATOR(Add) OPERATOR(Sub) \
71  OPERATOR(Shl) OPERATOR(Shr) OPERATOR(And) OPERATOR(Or) OPERATOR(Xor)
72 
73 namespace clang {
74 
75 // A helper macro to implement short-circuiting when recursing. It
76 // invokes CALL_EXPR, which must be a method call, on the derived
77 // object (s.t. a user of RecursiveASTVisitor can override the method
78 // in CALL_EXPR).
79 #define TRY_TO(CALL_EXPR) \
80  do { \
81  if (!getDerived().CALL_EXPR) \
82  return false; \
83  } while (false)
84 
85 /// A class that does preorder or postorder
86 /// depth-first traversal on the entire Clang AST and visits each node.
87 ///
88 /// This class performs three distinct tasks:
89 /// 1. traverse the AST (i.e. go to each node);
90 /// 2. at a given node, walk up the class hierarchy, starting from
91 /// the node's dynamic type, until the top-most class (e.g. Stmt,
92 /// Decl, or Type) is reached.
93 /// 3. given a (node, class) combination, where 'class' is some base
94 /// class of the dynamic type of 'node', call a user-overridable
95 /// function to actually visit the node.
96 ///
97 /// These tasks are done by three groups of methods, respectively:
98 /// 1. TraverseDecl(Decl *x) does task #1. It is the entry point
99 /// for traversing an AST rooted at x. This method simply
100 /// dispatches (i.e. forwards) to TraverseFoo(Foo *x) where Foo
101 /// is the dynamic type of *x, which calls WalkUpFromFoo(x) and
102 /// then recursively visits the child nodes of x.
103 /// TraverseStmt(Stmt *x) and TraverseType(QualType x) work
104 /// similarly.
105 /// 2. WalkUpFromFoo(Foo *x) does task #2. It does not try to visit
106 /// any child node of x. Instead, it first calls WalkUpFromBar(x)
107 /// where Bar is the direct parent class of Foo (unless Foo has
108 /// no parent), and then calls VisitFoo(x) (see the next list item).
109 /// 3. VisitFoo(Foo *x) does task #3.
110 ///
111 /// These three method groups are tiered (Traverse* > WalkUpFrom* >
112 /// Visit*). A method (e.g. Traverse*) may call methods from the same
113 /// tier (e.g. other Traverse*) or one tier lower (e.g. WalkUpFrom*).
114 /// It may not call methods from a higher tier.
115 ///
116 /// Note that since WalkUpFromFoo() calls WalkUpFromBar() (where Bar
117 /// is Foo's super class) before calling VisitFoo(), the result is
118 /// that the Visit*() methods for a given node are called in the
119 /// top-down order (e.g. for a node of type NamespaceDecl, the order will
120 /// be VisitDecl(), VisitNamedDecl(), and then VisitNamespaceDecl()).
121 ///
122 /// This scheme guarantees that all Visit*() calls for the same AST
123 /// node are grouped together. In other words, Visit*() methods for
124 /// different nodes are never interleaved.
125 ///
126 /// Clients of this visitor should subclass the visitor (providing
127 /// themselves as the template argument, using the curiously recurring
128 /// template pattern) and override any of the Traverse*, WalkUpFrom*,
129 /// and Visit* methods for declarations, types, statements,
130 /// expressions, or other AST nodes where the visitor should customize
131 /// behavior. Most users only need to override Visit*. Advanced
132 /// users may override Traverse* and WalkUpFrom* to implement custom
133 /// traversal strategies. Returning false from one of these overridden
134 /// functions will abort the entire traversal.
135 ///
136 /// By default, this visitor tries to visit every part of the explicit
137 /// source code exactly once. The default policy towards templates
138 /// is to descend into the 'pattern' class or function body, not any
139 /// explicit or implicit instantiations. Explicit specializations
140 /// are still visited, and the patterns of partial specializations
141 /// are visited separately. This behavior can be changed by
142 /// overriding shouldVisitTemplateInstantiations() in the derived class
143 /// to return true, in which case all known implicit and explicit
144 /// instantiations will be visited at the same time as the pattern
145 /// from which they were produced.
146 ///
147 /// By default, this visitor preorder traverses the AST. If postorder traversal
148 /// is needed, the \c shouldTraversePostOrder method needs to be overridden
149 /// to return \c true.
150 template <typename Derived> class RecursiveASTVisitor {
151 public:
152  /// A queue used for performing data recursion over statements.
153  /// Parameters involving this type are used to implement data
154  /// recursion over Stmts and Exprs within this class, and should
155  /// typically not be explicitly specified by derived classes.
156  /// The bool bit indicates whether the statement has been traversed or not.
159 
160  /// Return a reference to the derived class.
161  Derived &getDerived() { return *static_cast<Derived *>(this); }
162 
163  /// Return whether this visitor should recurse into
164  /// template instantiations.
165  bool shouldVisitTemplateInstantiations() const { return false; }
166 
167  /// Return whether this visitor should recurse into the types of
168  /// TypeLocs.
169  bool shouldWalkTypesOfTypeLocs() const { return true; }
170 
171  /// Return whether this visitor should recurse into implicit
172  /// code, e.g., implicit constructors and destructors.
173  bool shouldVisitImplicitCode() const { return false; }
174 
175  /// Return whether this visitor should traverse post-order.
176  bool shouldTraversePostOrder() const { return false; }
177 
178  /// Recursively visits an entire AST, starting from the top-level Decls
179  /// in the AST traversal scope (by default, the TranslationUnitDecl).
180  /// \returns false if visitation was terminated early.
181  bool TraverseAST(ASTContext &AST) {
182  for (Decl *D : AST.getTraversalScope())
183  if (!getDerived().TraverseDecl(D))
184  return false;
185  return true;
186  }
187 
188  /// Recursively visit a statement or expression, by
189  /// dispatching to Traverse*() based on the argument's dynamic type.
190  ///
191  /// \returns false if the visitation was terminated early, true
192  /// otherwise (including when the argument is nullptr).
193  bool TraverseStmt(Stmt *S, DataRecursionQueue *Queue = nullptr);
194 
195  /// Invoked before visiting a statement or expression via data recursion.
196  ///
197  /// \returns false to skip visiting the node, true otherwise.
198  bool dataTraverseStmtPre(Stmt *S) { return true; }
199 
200  /// Invoked after visiting a statement or expression via data recursion.
201  /// This is not invoked if the previously invoked \c dataTraverseStmtPre
202  /// returned false.
203  ///
204  /// \returns false if the visitation was terminated early, true otherwise.
205  bool dataTraverseStmtPost(Stmt *S) { return true; }
206 
207  /// Recursively visit a type, by dispatching to
208  /// Traverse*Type() based on the argument's getTypeClass() property.
209  ///
210  /// \returns false if the visitation was terminated early, true
211  /// otherwise (including when the argument is a Null type).
212  bool TraverseType(QualType T);
213 
214  /// Recursively visit a type with location, by dispatching to
215  /// Traverse*TypeLoc() based on the argument type's getTypeClass() property.
216  ///
217  /// \returns false if the visitation was terminated early, true
218  /// otherwise (including when the argument is a Null type location).
219  bool TraverseTypeLoc(TypeLoc TL);
220 
221  /// Recursively visit an attribute, by dispatching to
222  /// Traverse*Attr() based on the argument's dynamic type.
223  ///
224  /// \returns false if the visitation was terminated early, true
225  /// otherwise (including when the argument is a Null type location).
226  bool TraverseAttr(Attr *At);
227 
228  /// Recursively visit a declaration, by dispatching to
229  /// Traverse*Decl() based on the argument's dynamic type.
230  ///
231  /// \returns false if the visitation was terminated early, true
232  /// otherwise (including when the argument is NULL).
233  bool TraverseDecl(Decl *D);
234 
235  /// Recursively visit a C++ nested-name-specifier.
236  ///
237  /// \returns false if the visitation was terminated early, true otherwise.
239 
240  /// Recursively visit a C++ nested-name-specifier with location
241  /// information.
242  ///
243  /// \returns false if the visitation was terminated early, true otherwise.
245 
246  /// Recursively visit a name with its location information.
247  ///
248  /// \returns false if the visitation was terminated early, true otherwise.
250 
251  /// Recursively visit a template name and dispatch to the
252  /// appropriate method.
253  ///
254  /// \returns false if the visitation was terminated early, true otherwise.
255  bool TraverseTemplateName(TemplateName Template);
256 
257  /// Recursively visit a template argument and dispatch to the
258  /// appropriate method for the argument type.
259  ///
260  /// \returns false if the visitation was terminated early, true otherwise.
261  // FIXME: migrate callers to TemplateArgumentLoc instead.
263 
264  /// Recursively visit a template argument location and dispatch to the
265  /// appropriate method for the argument type.
266  ///
267  /// \returns false if the visitation was terminated early, true otherwise.
269 
270  /// Recursively visit a set of template arguments.
271  /// This can be overridden by a subclass, but it's not expected that
272  /// will be needed -- this visitor always dispatches to another.
273  ///
274  /// \returns false if the visitation was terminated early, true otherwise.
275  // FIXME: take a TemplateArgumentLoc* (or TemplateArgumentListInfo) instead.
277  unsigned NumArgs);
278 
279  /// Recursively visit a base specifier. This can be overridden by a
280  /// subclass.
281  ///
282  /// \returns false if the visitation was terminated early, true otherwise.
284 
285  /// Recursively visit a constructor initializer. This
286  /// automatically dispatches to another visitor for the initializer
287  /// expression, but not for the name of the initializer, so may
288  /// be overridden for clients that need access to the name.
289  ///
290  /// \returns false if the visitation was terminated early, true otherwise.
292 
293  /// Recursively visit a lambda capture. \c Init is the expression that
294  /// will be used to initialize the capture.
295  ///
296  /// \returns false if the visitation was terminated early, true otherwise.
298  Expr *Init);
299 
300  /// Recursively visit the syntactic or semantic form of an
301  /// initialization list.
302  ///
303  /// \returns false if the visitation was terminated early, true otherwise.
305  DataRecursionQueue *Queue = nullptr);
306 
307  // ---- Methods on Attrs ----
308 
309  // Visit an attribute.
310  bool VisitAttr(Attr *A) { return true; }
311 
312 // Declare Traverse* and empty Visit* for all Attr classes.
313 #define ATTR_VISITOR_DECLS_ONLY
314 #include "clang/AST/AttrVisitor.inc"
315 #undef ATTR_VISITOR_DECLS_ONLY
316 
317 // ---- Methods on Stmts ----
318 
320 
321 private:
322  template<typename T, typename U>
323  struct has_same_member_pointer_type : std::false_type {};
324  template<typename T, typename U, typename R, typename... P>
325  struct has_same_member_pointer_type<R (T::*)(P...), R (U::*)(P...)>
326  : std::true_type {};
327 
328  // Traverse the given statement. If the most-derived traverse function takes a
329  // data recursion queue, pass it on; otherwise, discard it. Note that the
330  // first branch of this conditional must compile whether or not the derived
331  // class can take a queue, so if we're taking the second arm, make the first
332  // arm call our function rather than the derived class version.
333 #define TRAVERSE_STMT_BASE(NAME, CLASS, VAR, QUEUE) \
334  (has_same_member_pointer_type<decltype( \
335  &RecursiveASTVisitor::Traverse##NAME), \
336  decltype(&Derived::Traverse##NAME)>::value \
337  ? static_cast<typename std::conditional< \
338  has_same_member_pointer_type< \
339  decltype(&RecursiveASTVisitor::Traverse##NAME), \
340  decltype(&Derived::Traverse##NAME)>::value, \
341  Derived &, RecursiveASTVisitor &>::type>(*this) \
342  .Traverse##NAME(static_cast<CLASS *>(VAR), QUEUE) \
343  : getDerived().Traverse##NAME(static_cast<CLASS *>(VAR)))
344 
345 // Try to traverse the given statement, or enqueue it if we're performing data
346 // recursion in the middle of traversing another statement. Can only be called
347 // from within a DEF_TRAVERSE_STMT body or similar context.
348 #define TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S) \
349  do { \
350  if (!TRAVERSE_STMT_BASE(Stmt, Stmt, S, Queue)) \
351  return false; \
352  } while (false)
353 
354 public:
355 // Declare Traverse*() for all concrete Stmt classes.
356 #define ABSTRACT_STMT(STMT)
357 #define STMT(CLASS, PARENT) \
358  bool Traverse##CLASS(CLASS *S, DataRecursionQueue *Queue = nullptr);
359 #include "clang/AST/StmtNodes.inc"
360  // The above header #undefs ABSTRACT_STMT and STMT upon exit.
361 
362  // Define WalkUpFrom*() and empty Visit*() for all Stmt classes.
363  bool WalkUpFromStmt(Stmt *S) { return getDerived().VisitStmt(S); }
364  bool VisitStmt(Stmt *S) { return true; }
365 #define STMT(CLASS, PARENT) \
366  bool WalkUpFrom##CLASS(CLASS *S) { \
367  TRY_TO(WalkUpFrom##PARENT(S)); \
368  TRY_TO(Visit##CLASS(S)); \
369  return true; \
370  } \
371  bool Visit##CLASS(CLASS *S) { return true; }
372 #include "clang/AST/StmtNodes.inc"
373 
374 // Define Traverse*(), WalkUpFrom*(), and Visit*() for unary
375 // operator methods. Unary operators are not classes in themselves
376 // (they're all opcodes in UnaryOperator) but do have visitors.
377 #define OPERATOR(NAME) \
378  bool TraverseUnary##NAME(UnaryOperator *S, \
379  DataRecursionQueue *Queue = nullptr) { \
380  if (!getDerived().shouldTraversePostOrder()) \
381  TRY_TO(WalkUpFromUnary##NAME(S)); \
382  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getSubExpr()); \
383  return true; \
384  } \
385  bool WalkUpFromUnary##NAME(UnaryOperator *S) { \
386  TRY_TO(WalkUpFromUnaryOperator(S)); \
387  TRY_TO(VisitUnary##NAME(S)); \
388  return true; \
389  } \
390  bool VisitUnary##NAME(UnaryOperator *S) { return true; }
391 
392  UNARYOP_LIST()
393 #undef OPERATOR
394 
395 // Define Traverse*(), WalkUpFrom*(), and Visit*() for binary
396 // operator methods. Binary operators are not classes in themselves
397 // (they're all opcodes in BinaryOperator) but do have visitors.
398 #define GENERAL_BINOP_FALLBACK(NAME, BINOP_TYPE) \
399  bool TraverseBin##NAME(BINOP_TYPE *S, DataRecursionQueue *Queue = nullptr) { \
400  if (!getDerived().shouldTraversePostOrder()) \
401  TRY_TO(WalkUpFromBin##NAME(S)); \
402  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getLHS()); \
403  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getRHS()); \
404  return true; \
405  } \
406  bool WalkUpFromBin##NAME(BINOP_TYPE *S) { \
407  TRY_TO(WalkUpFrom##BINOP_TYPE(S)); \
408  TRY_TO(VisitBin##NAME(S)); \
409  return true; \
410  } \
411  bool VisitBin##NAME(BINOP_TYPE *S) { return true; }
412 
413 #define OPERATOR(NAME) GENERAL_BINOP_FALLBACK(NAME, BinaryOperator)
414  BINOP_LIST()
415 #undef OPERATOR
416 
417 // Define Traverse*(), WalkUpFrom*(), and Visit*() for compound
418 // assignment methods. Compound assignment operators are not
419 // classes in themselves (they're all opcodes in
420 // CompoundAssignOperator) but do have visitors.
421 #define OPERATOR(NAME) \
422  GENERAL_BINOP_FALLBACK(NAME##Assign, CompoundAssignOperator)
423 
424  CAO_LIST()
425 #undef OPERATOR
426 #undef GENERAL_BINOP_FALLBACK
427 
428 // ---- Methods on Types ----
429 // FIXME: revamp to take TypeLoc's rather than Types.
430 
431 // Declare Traverse*() for all concrete Type classes.
432 #define ABSTRACT_TYPE(CLASS, BASE)
433 #define TYPE(CLASS, BASE) bool Traverse##CLASS##Type(CLASS##Type *T);
434 #include "clang/AST/TypeNodes.def"
435  // The above header #undefs ABSTRACT_TYPE and TYPE upon exit.
436 
437  // Define WalkUpFrom*() and empty Visit*() for all Type classes.
438  bool WalkUpFromType(Type *T) { return getDerived().VisitType(T); }
439  bool VisitType(Type *T) { return true; }
440 #define TYPE(CLASS, BASE) \
441  bool WalkUpFrom##CLASS##Type(CLASS##Type *T) { \
442  TRY_TO(WalkUpFrom##BASE(T)); \
443  TRY_TO(Visit##CLASS##Type(T)); \
444  return true; \
445  } \
446  bool Visit##CLASS##Type(CLASS##Type *T) { return true; }
447 #include "clang/AST/TypeNodes.def"
448 
449 // ---- Methods on TypeLocs ----
450 // FIXME: this currently just calls the matching Type methods
451 
452 // Declare Traverse*() for all concrete TypeLoc classes.
453 #define ABSTRACT_TYPELOC(CLASS, BASE)
454 #define TYPELOC(CLASS, BASE) bool Traverse##CLASS##TypeLoc(CLASS##TypeLoc TL);
455 #include "clang/AST/TypeLocNodes.def"
456  // The above header #undefs ABSTRACT_TYPELOC and TYPELOC upon exit.
457 
458  // Define WalkUpFrom*() and empty Visit*() for all TypeLoc classes.
459  bool WalkUpFromTypeLoc(TypeLoc TL) { return getDerived().VisitTypeLoc(TL); }
460  bool VisitTypeLoc(TypeLoc TL) { return true; }
461 
462  // QualifiedTypeLoc and UnqualTypeLoc are not declared in
463  // TypeNodes.def and thus need to be handled specially.
465  return getDerived().VisitUnqualTypeLoc(TL.getUnqualifiedLoc());
466  }
467  bool VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { return true; }
469  return getDerived().VisitUnqualTypeLoc(TL.getUnqualifiedLoc());
470  }
471  bool VisitUnqualTypeLoc(UnqualTypeLoc TL) { return true; }
472 
473 // Note that BASE includes trailing 'Type' which CLASS doesn't.
474 #define TYPE(CLASS, BASE) \
475  bool WalkUpFrom##CLASS##TypeLoc(CLASS##TypeLoc TL) { \
476  TRY_TO(WalkUpFrom##BASE##Loc(TL)); \
477  TRY_TO(Visit##CLASS##TypeLoc(TL)); \
478  return true; \
479  } \
480  bool Visit##CLASS##TypeLoc(CLASS##TypeLoc TL) { return true; }
481 #include "clang/AST/TypeNodes.def"
482 
483 // ---- Methods on Decls ----
484 
485 // Declare Traverse*() for all concrete Decl classes.
486 #define ABSTRACT_DECL(DECL)
487 #define DECL(CLASS, BASE) bool Traverse##CLASS##Decl(CLASS##Decl *D);
488 #include "clang/AST/DeclNodes.inc"
489  // The above header #undefs ABSTRACT_DECL and DECL upon exit.
490 
491  // Define WalkUpFrom*() and empty Visit*() for all Decl classes.
492  bool WalkUpFromDecl(Decl *D) { return getDerived().VisitDecl(D); }
493  bool VisitDecl(Decl *D) { return true; }
494 #define DECL(CLASS, BASE) \
495  bool WalkUpFrom##CLASS##Decl(CLASS##Decl *D) { \
496  TRY_TO(WalkUpFrom##BASE(D)); \
497  TRY_TO(Visit##CLASS##Decl(D)); \
498  return true; \
499  } \
500  bool Visit##CLASS##Decl(CLASS##Decl *D) { return true; }
501 #include "clang/AST/DeclNodes.inc"
502 
503  bool canIgnoreChildDeclWhileTraversingDeclContext(const Decl *Child);
504 
505 private:
506  // These are helper methods used by more than one Traverse* method.
507  bool TraverseTemplateParameterListHelper(TemplateParameterList *TPL);
508 
509  // Traverses template parameter lists of either a DeclaratorDecl or TagDecl.
510  template <typename T>
511  bool TraverseDeclTemplateParameterLists(T *D);
512 
513 #define DEF_TRAVERSE_TMPL_INST(TMPLDECLKIND) \
514  bool TraverseTemplateInstantiations(TMPLDECLKIND##TemplateDecl *D);
517  DEF_TRAVERSE_TMPL_INST(Function)
518 #undef DEF_TRAVERSE_TMPL_INST
519  bool TraverseTemplateArgumentLocsHelper(const TemplateArgumentLoc *TAL,
520  unsigned Count);
521  bool TraverseArrayTypeLocHelper(ArrayTypeLoc TL);
522  bool TraverseRecordHelper(RecordDecl *D);
523  bool TraverseCXXRecordHelper(CXXRecordDecl *D);
524  bool TraverseDeclaratorHelper(DeclaratorDecl *D);
525  bool TraverseDeclContextHelper(DeclContext *DC);
526  bool TraverseFunctionHelper(FunctionDecl *D);
527  bool TraverseVarHelper(VarDecl *D);
528  bool TraverseOMPExecutableDirective(OMPExecutableDirective *S);
529  bool TraverseOMPLoopDirective(OMPLoopDirective *S);
530  bool TraverseOMPClause(OMPClause *C);
531 #define OPENMP_CLAUSE(Name, Class) bool Visit##Class(Class *C);
532 #include "clang/Basic/OpenMPKinds.def"
533  /// Process clauses with list of variables.
534  template <typename T> bool VisitOMPClauseList(T *Node);
535  /// Process clauses with pre-initis.
536  bool VisitOMPClauseWithPreInit(OMPClauseWithPreInit *Node);
537  bool VisitOMPClauseWithPostUpdate(OMPClauseWithPostUpdate *Node);
538 
539  bool dataTraverseNode(Stmt *S, DataRecursionQueue *Queue);
540  bool PostVisitStmt(Stmt *S);
541 };
542 
543 template <typename Derived>
544 bool RecursiveASTVisitor<Derived>::dataTraverseNode(Stmt *S,
545  DataRecursionQueue *Queue) {
546 #define DISPATCH_STMT(NAME, CLASS, VAR) \
547  return TRAVERSE_STMT_BASE(NAME, CLASS, VAR, Queue);
548 
549  // If we have a binary expr, dispatch to the subcode of the binop. A smart
550  // optimizer (e.g. LLVM) will fold this comparison into the switch stmt
551  // below.
552  if (BinaryOperator *BinOp = dyn_cast<BinaryOperator>(S)) {
553  switch (BinOp->getOpcode()) {
554 #define OPERATOR(NAME) \
555  case BO_##NAME: \
556  DISPATCH_STMT(Bin##NAME, BinaryOperator, S);
557 
558  BINOP_LIST()
559 #undef OPERATOR
560 #undef BINOP_LIST
561 
562 #define OPERATOR(NAME) \
563  case BO_##NAME##Assign: \
564  DISPATCH_STMT(Bin##NAME##Assign, CompoundAssignOperator, S);
565 
566  CAO_LIST()
567 #undef OPERATOR
568 #undef CAO_LIST
569  }
570  } else if (UnaryOperator *UnOp = dyn_cast<UnaryOperator>(S)) {
571  switch (UnOp->getOpcode()) {
572 #define OPERATOR(NAME) \
573  case UO_##NAME: \
574  DISPATCH_STMT(Unary##NAME, UnaryOperator, S);
575 
576  UNARYOP_LIST()
577 #undef OPERATOR
578 #undef UNARYOP_LIST
579  }
580  }
581 
582  // Top switch stmt: dispatch to TraverseFooStmt for each concrete FooStmt.
583  switch (S->getStmtClass()) {
584  case Stmt::NoStmtClass:
585  break;
586 #define ABSTRACT_STMT(STMT)
587 #define STMT(CLASS, PARENT) \
588  case Stmt::CLASS##Class: \
589  DISPATCH_STMT(CLASS, CLASS, S);
590 #include "clang/AST/StmtNodes.inc"
591  }
592 
593  return true;
594 }
595 
596 #undef DISPATCH_STMT
597 
598 template <typename Derived>
599 bool RecursiveASTVisitor<Derived>::PostVisitStmt(Stmt *S) {
600  switch (S->getStmtClass()) {
601  case Stmt::NoStmtClass:
602  break;
603 #define ABSTRACT_STMT(STMT)
604 #define STMT(CLASS, PARENT) \
605  case Stmt::CLASS##Class: \
606  TRY_TO(WalkUpFrom##CLASS(static_cast<CLASS *>(S))); break;
607 #define INITLISTEXPR(CLASS, PARENT) \
608  case Stmt::CLASS##Class: \
609  { \
610  auto ILE = static_cast<CLASS *>(S); \
611  if (auto Syn = ILE->isSemanticForm() ? ILE->getSyntacticForm() : ILE) \
612  TRY_TO(WalkUpFrom##CLASS(Syn)); \
613  if (auto Sem = ILE->isSemanticForm() ? ILE : ILE->getSemanticForm()) \
614  TRY_TO(WalkUpFrom##CLASS(Sem)); \
615  break; \
616  }
617 #include "clang/AST/StmtNodes.inc"
618  }
619 
620  return true;
621 }
622 
623 #undef DISPATCH_STMT
624 
625 template <typename Derived>
627  DataRecursionQueue *Queue) {
628  if (!S)
629  return true;
630 
631  if (Queue) {
632  Queue->push_back({S, false});
633  return true;
634  }
635 
637  LocalQueue.push_back({S, false});
638 
639  while (!LocalQueue.empty()) {
640  auto &CurrSAndVisited = LocalQueue.back();
641  Stmt *CurrS = CurrSAndVisited.getPointer();
642  bool Visited = CurrSAndVisited.getInt();
643  if (Visited) {
644  LocalQueue.pop_back();
647  TRY_TO(PostVisitStmt(CurrS));
648  }
649  continue;
650  }
651 
652  if (getDerived().dataTraverseStmtPre(CurrS)) {
653  CurrSAndVisited.setInt(true);
654  size_t N = LocalQueue.size();
655  TRY_TO(dataTraverseNode(CurrS, &LocalQueue));
656  // Process new children in the order they were added.
657  std::reverse(LocalQueue.begin() + N, LocalQueue.end());
658  } else {
659  LocalQueue.pop_back();
660  }
661  }
662 
663  return true;
664 }
665 
666 #define DISPATCH(NAME, CLASS, VAR) \
667  return getDerived().Traverse##NAME(static_cast<CLASS *>(VAR))
668 
669 template <typename Derived>
671  if (T.isNull())
672  return true;
673 
674  switch (T->getTypeClass()) {
675 #define ABSTRACT_TYPE(CLASS, BASE)
676 #define TYPE(CLASS, BASE) \
677  case Type::CLASS: \
678  DISPATCH(CLASS##Type, CLASS##Type, const_cast<Type *>(T.getTypePtr()));
679 #include "clang/AST/TypeNodes.def"
680  }
681 
682  return true;
683 }
684 
685 template <typename Derived>
687  if (TL.isNull())
688  return true;
689 
690  switch (TL.getTypeLocClass()) {
691 #define ABSTRACT_TYPELOC(CLASS, BASE)
692 #define TYPELOC(CLASS, BASE) \
693  case TypeLoc::CLASS: \
694  return getDerived().Traverse##CLASS##TypeLoc(TL.castAs<CLASS##TypeLoc>());
695 #include "clang/AST/TypeLocNodes.def"
696  }
697 
698  return true;
699 }
700 
701 // Define the Traverse*Attr(Attr* A) methods
702 #define VISITORCLASS RecursiveASTVisitor
703 #include "clang/AST/AttrVisitor.inc"
704 #undef VISITORCLASS
705 
706 template <typename Derived>
708  if (!D)
709  return true;
710 
711  // As a syntax visitor, by default we want to ignore declarations for
712  // implicit declarations (ones not typed explicitly by the user).
714  return true;
715 
716  switch (D->getKind()) {
717 #define ABSTRACT_DECL(DECL)
718 #define DECL(CLASS, BASE) \
719  case Decl::CLASS: \
720  if (!getDerived().Traverse##CLASS##Decl(static_cast<CLASS##Decl *>(D))) \
721  return false; \
722  break;
723 #include "clang/AST/DeclNodes.inc"
724  }
725 
726  // Visit any attributes attached to this declaration.
727  for (auto *I : D->attrs()) {
728  if (!getDerived().TraverseAttr(I))
729  return false;
730  }
731  return true;
732 }
733 
734 #undef DISPATCH
735 
736 template <typename Derived>
738  NestedNameSpecifier *NNS) {
739  if (!NNS)
740  return true;
741 
742  if (NNS->getPrefix())
744 
745  switch (NNS->getKind()) {
751  return true;
752 
755  TRY_TO(TraverseType(QualType(NNS->getAsType(), 0)));
756  }
757 
758  return true;
759 }
760 
761 template <typename Derived>
764  if (!NNS)
765  return true;
766 
767  if (NestedNameSpecifierLoc Prefix = NNS.getPrefix())
769 
770  switch (NNS.getNestedNameSpecifier()->getKind()) {
776  return true;
777 
781  break;
782  }
783 
784  return true;
785 }
786 
787 template <typename Derived>
789  DeclarationNameInfo NameInfo) {
790  switch (NameInfo.getName().getNameKind()) {
794  if (TypeSourceInfo *TSInfo = NameInfo.getNamedTypeInfo())
795  TRY_TO(TraverseTypeLoc(TSInfo->getTypeLoc()));
796  break;
797 
801  break;
802 
810  break;
811  }
812 
813  return true;
814 }
815 
816 template <typename Derived>
819  TRY_TO(TraverseNestedNameSpecifier(DTN->getQualifier()));
820  else if (QualifiedTemplateName *QTN = Template.getAsQualifiedTemplateName())
821  TRY_TO(TraverseNestedNameSpecifier(QTN->getQualifier()));
822 
823  return true;
824 }
825 
826 template <typename Derived>
828  const TemplateArgument &Arg) {
829  switch (Arg.getKind()) {
834  return true;
835 
837  return getDerived().TraverseType(Arg.getAsType());
838 
841  return getDerived().TraverseTemplateName(
843 
845  return getDerived().TraverseStmt(Arg.getAsExpr());
846 
848  return getDerived().TraverseTemplateArguments(Arg.pack_begin(),
849  Arg.pack_size());
850  }
851 
852  return true;
853 }
854 
855 // FIXME: no template name location?
856 // FIXME: no source locations for a template argument pack?
857 template <typename Derived>
859  const TemplateArgumentLoc &ArgLoc) {
860  const TemplateArgument &Arg = ArgLoc.getArgument();
861 
862  switch (Arg.getKind()) {
867  return true;
868 
869  case TemplateArgument::Type: {
870  // FIXME: how can TSI ever be NULL?
871  if (TypeSourceInfo *TSI = ArgLoc.getTypeSourceInfo())
872  return getDerived().TraverseTypeLoc(TSI->getTypeLoc());
873  else
874  return getDerived().TraverseType(Arg.getAsType());
875  }
876 
879  if (ArgLoc.getTemplateQualifierLoc())
880  TRY_TO(getDerived().TraverseNestedNameSpecifierLoc(
881  ArgLoc.getTemplateQualifierLoc()));
882  return getDerived().TraverseTemplateName(
884 
886  return getDerived().TraverseStmt(ArgLoc.getSourceExpression());
887 
889  return getDerived().TraverseTemplateArguments(Arg.pack_begin(),
890  Arg.pack_size());
891  }
892 
893  return true;
894 }
895 
896 template <typename Derived>
898  const TemplateArgument *Args, unsigned NumArgs) {
899  for (unsigned I = 0; I != NumArgs; ++I) {
901  }
902 
903  return true;
904 }
905 
906 template <typename Derived>
908  CXXCtorInitializer *Init) {
909  if (TypeSourceInfo *TInfo = Init->getTypeSourceInfo())
910  TRY_TO(TraverseTypeLoc(TInfo->getTypeLoc()));
911 
912  if (Init->isWritten() || getDerived().shouldVisitImplicitCode())
913  TRY_TO(TraverseStmt(Init->getInit()));
914 
915  return true;
916 }
917 
918 template <typename Derived>
919 bool
921  const LambdaCapture *C,
922  Expr *Init) {
923  if (LE->isInitCapture(C))
925  else
926  TRY_TO(TraverseStmt(Init));
927  return true;
928 }
929 
930 // ----------------- Type traversal -----------------
931 
932 // This macro makes available a variable T, the passed-in type.
933 #define DEF_TRAVERSE_TYPE(TYPE, CODE) \
934  template <typename Derived> \
935  bool RecursiveASTVisitor<Derived>::Traverse##TYPE(TYPE *T) { \
936  if (!getDerived().shouldTraversePostOrder()) \
937  TRY_TO(WalkUpFrom##TYPE(T)); \
938  { CODE; } \
939  if (getDerived().shouldTraversePostOrder()) \
940  TRY_TO(WalkUpFrom##TYPE(T)); \
941  return true; \
942  }
943 
944 DEF_TRAVERSE_TYPE(BuiltinType, {})
945 
946 DEF_TRAVERSE_TYPE(ComplexType, { TRY_TO(TraverseType(T->getElementType())); })
947 
948 DEF_TRAVERSE_TYPE(PointerType, { TRY_TO(TraverseType(T->getPointeeType())); })
949 
950 DEF_TRAVERSE_TYPE(BlockPointerType,
951  { TRY_TO(TraverseType(T->getPointeeType())); })
952 
953 DEF_TRAVERSE_TYPE(LValueReferenceType,
954  { TRY_TO(TraverseType(T->getPointeeType())); })
955 
956 DEF_TRAVERSE_TYPE(RValueReferenceType,
957  { TRY_TO(TraverseType(T->getPointeeType())); })
958 
959 DEF_TRAVERSE_TYPE(MemberPointerType, {
960  TRY_TO(TraverseType(QualType(T->getClass(), 0)));
961  TRY_TO(TraverseType(T->getPointeeType()));
962 })
963 
964 DEF_TRAVERSE_TYPE(AdjustedType, { TRY_TO(TraverseType(T->getOriginalType())); })
965 
966 DEF_TRAVERSE_TYPE(DecayedType, { TRY_TO(TraverseType(T->getOriginalType())); })
967 
968 DEF_TRAVERSE_TYPE(ConstantArrayType,
969  { TRY_TO(TraverseType(T->getElementType())); })
970 
971 DEF_TRAVERSE_TYPE(IncompleteArrayType,
972  { TRY_TO(TraverseType(T->getElementType())); })
973 
974 DEF_TRAVERSE_TYPE(VariableArrayType, {
975  TRY_TO(TraverseType(T->getElementType()));
976  TRY_TO(TraverseStmt(T->getSizeExpr()));
977 })
978 
979 DEF_TRAVERSE_TYPE(DependentSizedArrayType, {
980  TRY_TO(TraverseType(T->getElementType()));
981  if (T->getSizeExpr())
982  TRY_TO(TraverseStmt(T->getSizeExpr()));
983 })
984 
985 DEF_TRAVERSE_TYPE(DependentAddressSpaceType, {
986  TRY_TO(TraverseStmt(T->getAddrSpaceExpr()));
987  TRY_TO(TraverseType(T->getPointeeType()));
988 })
989 
990 DEF_TRAVERSE_TYPE(DependentVectorType, {
991  if (T->getSizeExpr())
992  TRY_TO(TraverseStmt(T->getSizeExpr()));
993  TRY_TO(TraverseType(T->getElementType()));
994 })
995 
996 DEF_TRAVERSE_TYPE(DependentSizedExtVectorType, {
997  if (T->getSizeExpr())
998  TRY_TO(TraverseStmt(T->getSizeExpr()));
999  TRY_TO(TraverseType(T->getElementType()));
1000 })
1001 
1002 DEF_TRAVERSE_TYPE(VectorType, { TRY_TO(TraverseType(T->getElementType())); })
1003 
1004 DEF_TRAVERSE_TYPE(ExtVectorType, { TRY_TO(TraverseType(T->getElementType())); })
1005 
1006 DEF_TRAVERSE_TYPE(FunctionNoProtoType,
1007  { TRY_TO(TraverseType(T->getReturnType())); })
1008 
1009 DEF_TRAVERSE_TYPE(FunctionProtoType, {
1010  TRY_TO(TraverseType(T->getReturnType()));
1011 
1012  for (const auto &A : T->param_types()) {
1013  TRY_TO(TraverseType(A));
1014  }
1015 
1016  for (const auto &E : T->exceptions()) {
1017  TRY_TO(TraverseType(E));
1018  }
1019 
1020  if (Expr *NE = T->getNoexceptExpr())
1021  TRY_TO(TraverseStmt(NE));
1022 })
1023 
1024 DEF_TRAVERSE_TYPE(UnresolvedUsingType, {})
1025 DEF_TRAVERSE_TYPE(TypedefType, {})
1026 
1027 DEF_TRAVERSE_TYPE(TypeOfExprType,
1028  { TRY_TO(TraverseStmt(T->getUnderlyingExpr())); })
1029 
1030 DEF_TRAVERSE_TYPE(TypeOfType, { TRY_TO(TraverseType(T->getUnderlyingType())); })
1031 
1032 DEF_TRAVERSE_TYPE(DecltypeType,
1033  { TRY_TO(TraverseStmt(T->getUnderlyingExpr())); })
1034 
1035 DEF_TRAVERSE_TYPE(UnaryTransformType, {
1036  TRY_TO(TraverseType(T->getBaseType()));
1037  TRY_TO(TraverseType(T->getUnderlyingType()));
1038 })
1039 
1040 DEF_TRAVERSE_TYPE(AutoType, { TRY_TO(TraverseType(T->getDeducedType())); })
1041 DEF_TRAVERSE_TYPE(DeducedTemplateSpecializationType, {
1042  TRY_TO(TraverseTemplateName(T->getTemplateName()));
1043  TRY_TO(TraverseType(T->getDeducedType()));
1044 })
1045 
1046 DEF_TRAVERSE_TYPE(RecordType, {})
1047 DEF_TRAVERSE_TYPE(EnumType, {})
1048 DEF_TRAVERSE_TYPE(TemplateTypeParmType, {})
1049 DEF_TRAVERSE_TYPE(SubstTemplateTypeParmType, {
1050  TRY_TO(TraverseType(T->getReplacementType()));
1051 })
1052 DEF_TRAVERSE_TYPE(SubstTemplateTypeParmPackType, {
1053  TRY_TO(TraverseTemplateArgument(T->getArgumentPack()));
1054 })
1055 
1056 DEF_TRAVERSE_TYPE(TemplateSpecializationType, {
1057  TRY_TO(TraverseTemplateName(T->getTemplateName()));
1058  TRY_TO(TraverseTemplateArguments(T->getArgs(), T->getNumArgs()));
1059 })
1060 
1061 DEF_TRAVERSE_TYPE(InjectedClassNameType, {})
1062 
1063 DEF_TRAVERSE_TYPE(AttributedType,
1064  { TRY_TO(TraverseType(T->getModifiedType())); })
1065 
1066 DEF_TRAVERSE_TYPE(ParenType, { TRY_TO(TraverseType(T->getInnerType())); })
1067 
1068 DEF_TRAVERSE_TYPE(ElaboratedType, {
1069  if (T->getQualifier()) {
1070  TRY_TO(TraverseNestedNameSpecifier(T->getQualifier()));
1071  }
1072  TRY_TO(TraverseType(T->getNamedType()));
1073 })
1074 
1075 DEF_TRAVERSE_TYPE(DependentNameType,
1076  { TRY_TO(TraverseNestedNameSpecifier(T->getQualifier())); })
1077 
1078 DEF_TRAVERSE_TYPE(DependentTemplateSpecializationType, {
1079  TRY_TO(TraverseNestedNameSpecifier(T->getQualifier()));
1080  TRY_TO(TraverseTemplateArguments(T->getArgs(), T->getNumArgs()));
1081 })
1082 
1083 DEF_TRAVERSE_TYPE(PackExpansionType, { TRY_TO(TraverseType(T->getPattern())); })
1084 
1085 DEF_TRAVERSE_TYPE(ObjCTypeParamType, {})
1086 
1087 DEF_TRAVERSE_TYPE(ObjCInterfaceType, {})
1088 
1089 DEF_TRAVERSE_TYPE(ObjCObjectType, {
1090  // We have to watch out here because an ObjCInterfaceType's base
1091  // type is itself.
1092  if (T->getBaseType().getTypePtr() != T)
1093  TRY_TO(TraverseType(T->getBaseType()));
1094  for (auto typeArg : T->getTypeArgsAsWritten()) {
1095  TRY_TO(TraverseType(typeArg));
1096  }
1097 })
1098 
1099 DEF_TRAVERSE_TYPE(ObjCObjectPointerType,
1100  { TRY_TO(TraverseType(T->getPointeeType())); })
1101 
1102 DEF_TRAVERSE_TYPE(AtomicType, { TRY_TO(TraverseType(T->getValueType())); })
1103 
1104 DEF_TRAVERSE_TYPE(PipeType, { TRY_TO(TraverseType(T->getElementType())); })
1105 
1106 #undef DEF_TRAVERSE_TYPE
1107 
1108 // ----------------- TypeLoc traversal -----------------
1109 
1110 // This macro makes available a variable TL, the passed-in TypeLoc.
1111 // If requested, it calls WalkUpFrom* for the Type in the given TypeLoc,
1112 // in addition to WalkUpFrom* for the TypeLoc itself, such that existing
1113 // clients that override the WalkUpFrom*Type() and/or Visit*Type() methods
1114 // continue to work.
1115 #define DEF_TRAVERSE_TYPELOC(TYPE, CODE) \
1116  template <typename Derived> \
1117  bool RecursiveASTVisitor<Derived>::Traverse##TYPE##Loc(TYPE##Loc TL) { \
1119  TRY_TO(WalkUpFrom##TYPE(const_cast<TYPE *>(TL.getTypePtr()))); \
1120  TRY_TO(WalkUpFrom##TYPE##Loc(TL)); \
1121  { CODE; } \
1122  return true; \
1123  }
1124 
1125 template <typename Derived>
1126 bool
1127 RecursiveASTVisitor<Derived>::TraverseQualifiedTypeLoc(QualifiedTypeLoc TL) {
1128  // Move this over to the 'main' typeloc tree. Note that this is a
1129  // move -- we pretend that we were really looking at the unqualified
1130  // typeloc all along -- rather than a recursion, so we don't follow
1131  // the normal CRTP plan of going through
1132  // getDerived().TraverseTypeLoc. If we did, we'd be traversing
1133  // twice for the same type (once as a QualifiedTypeLoc version of
1134  // the type, once as an UnqualifiedTypeLoc version of the type),
1135  // which in effect means we'd call VisitTypeLoc twice with the
1136  // 'same' type. This solves that problem, at the cost of never
1137  // seeing the qualified version of the type (unless the client
1138  // subclasses TraverseQualifiedTypeLoc themselves). It's not a
1139  // perfect solution. A perfect solution probably requires making
1140  // QualifiedTypeLoc a wrapper around TypeLoc -- like QualType is a
1141  // wrapper around Type* -- rather than being its own class in the
1142  // type hierarchy.
1143  return TraverseTypeLoc(TL.getUnqualifiedLoc());
1144 }
1145 
1146 DEF_TRAVERSE_TYPELOC(BuiltinType, {})
1147 
1148 // FIXME: ComplexTypeLoc is unfinished
1149 DEF_TRAVERSE_TYPELOC(ComplexType, {
1150  TRY_TO(TraverseType(TL.getTypePtr()->getElementType()));
1151 })
1152 
1153 DEF_TRAVERSE_TYPELOC(PointerType,
1154  { TRY_TO(TraverseTypeLoc(TL.getPointeeLoc())); })
1155 
1156 DEF_TRAVERSE_TYPELOC(BlockPointerType,
1157  { TRY_TO(TraverseTypeLoc(TL.getPointeeLoc())); })
1158 
1159 DEF_TRAVERSE_TYPELOC(LValueReferenceType,
1160  { TRY_TO(TraverseTypeLoc(TL.getPointeeLoc())); })
1161 
1162 DEF_TRAVERSE_TYPELOC(RValueReferenceType,
1163  { TRY_TO(TraverseTypeLoc(TL.getPointeeLoc())); })
1164 
1165 // FIXME: location of base class?
1166 // We traverse this in the type case as well, but how is it not reached through
1167 // the pointee type?
1168 DEF_TRAVERSE_TYPELOC(MemberPointerType, {
1169  TRY_TO(TraverseType(QualType(TL.getTypePtr()->getClass(), 0)));
1170  TRY_TO(TraverseTypeLoc(TL.getPointeeLoc()));
1171 })
1172 
1173 DEF_TRAVERSE_TYPELOC(AdjustedType,
1174  { TRY_TO(TraverseTypeLoc(TL.getOriginalLoc())); })
1175 
1176 DEF_TRAVERSE_TYPELOC(DecayedType,
1177  { TRY_TO(TraverseTypeLoc(TL.getOriginalLoc())); })
1178 
1179 template <typename Derived>
1180 bool RecursiveASTVisitor<Derived>::TraverseArrayTypeLocHelper(ArrayTypeLoc TL) {
1181  // This isn't available for ArrayType, but is for the ArrayTypeLoc.
1182  TRY_TO(TraverseStmt(TL.getSizeExpr()));
1183  return true;
1184 }
1185 
1186 DEF_TRAVERSE_TYPELOC(ConstantArrayType, {
1187  TRY_TO(TraverseTypeLoc(TL.getElementLoc()));
1188  return TraverseArrayTypeLocHelper(TL);
1189 })
1190 
1191 DEF_TRAVERSE_TYPELOC(IncompleteArrayType, {
1192  TRY_TO(TraverseTypeLoc(TL.getElementLoc()));
1193  return TraverseArrayTypeLocHelper(TL);
1194 })
1195 
1196 DEF_TRAVERSE_TYPELOC(VariableArrayType, {
1197  TRY_TO(TraverseTypeLoc(TL.getElementLoc()));
1198  return TraverseArrayTypeLocHelper(TL);
1199 })
1200 
1201 DEF_TRAVERSE_TYPELOC(DependentSizedArrayType, {
1202  TRY_TO(TraverseTypeLoc(TL.getElementLoc()));
1203  return TraverseArrayTypeLocHelper(TL);
1204 })
1205 
1206 DEF_TRAVERSE_TYPELOC(DependentAddressSpaceType, {
1207  TRY_TO(TraverseStmt(TL.getTypePtr()->getAddrSpaceExpr()));
1208  TRY_TO(TraverseType(TL.getTypePtr()->getPointeeType()));
1209 })
1210 
1211 // FIXME: order? why not size expr first?
1212 // FIXME: base VectorTypeLoc is unfinished
1213 DEF_TRAVERSE_TYPELOC(DependentSizedExtVectorType, {
1214  if (TL.getTypePtr()->getSizeExpr())
1215  TRY_TO(TraverseStmt(TL.getTypePtr()->getSizeExpr()));
1216  TRY_TO(TraverseType(TL.getTypePtr()->getElementType()));
1217 })
1218 
1219 // FIXME: VectorTypeLoc is unfinished
1220 DEF_TRAVERSE_TYPELOC(VectorType, {
1221  TRY_TO(TraverseType(TL.getTypePtr()->getElementType()));
1222 })
1223 
1224 DEF_TRAVERSE_TYPELOC(DependentVectorType, {
1225  if (TL.getTypePtr()->getSizeExpr())
1226  TRY_TO(TraverseStmt(TL.getTypePtr()->getSizeExpr()));
1227  TRY_TO(TraverseType(TL.getTypePtr()->getElementType()));
1228 })
1229 
1230 // FIXME: size and attributes
1231 // FIXME: base VectorTypeLoc is unfinished
1232 DEF_TRAVERSE_TYPELOC(ExtVectorType, {
1233  TRY_TO(TraverseType(TL.getTypePtr()->getElementType()));
1234 })
1235 
1236 DEF_TRAVERSE_TYPELOC(FunctionNoProtoType,
1237  { TRY_TO(TraverseTypeLoc(TL.getReturnLoc())); })
1238 
1239 // FIXME: location of exception specifications (attributes?)
1240 DEF_TRAVERSE_TYPELOC(FunctionProtoType, {
1241  TRY_TO(TraverseTypeLoc(TL.getReturnLoc()));
1242 
1243  const FunctionProtoType *T = TL.getTypePtr();
1244 
1245  for (unsigned I = 0, E = TL.getNumParams(); I != E; ++I) {
1246  if (TL.getParam(I)) {
1247  TRY_TO(TraverseDecl(TL.getParam(I)));
1248  } else if (I < T->getNumParams()) {
1249  TRY_TO(TraverseType(T->getParamType(I)));
1250  }
1251  }
1252 
1253  for (const auto &E : T->exceptions()) {
1254  TRY_TO(TraverseType(E));
1255  }
1256 
1257  if (Expr *NE = T->getNoexceptExpr())
1258  TRY_TO(TraverseStmt(NE));
1259 })
1260 
1261 DEF_TRAVERSE_TYPELOC(UnresolvedUsingType, {})
1262 DEF_TRAVERSE_TYPELOC(TypedefType, {})
1263 
1264 DEF_TRAVERSE_TYPELOC(TypeOfExprType,
1265  { TRY_TO(TraverseStmt(TL.getUnderlyingExpr())); })
1266 
1267 DEF_TRAVERSE_TYPELOC(TypeOfType, {
1268  TRY_TO(TraverseTypeLoc(TL.getUnderlyingTInfo()->getTypeLoc()));
1269 })
1270 
1271 // FIXME: location of underlying expr
1272 DEF_TRAVERSE_TYPELOC(DecltypeType, {
1273  TRY_TO(TraverseStmt(TL.getTypePtr()->getUnderlyingExpr()));
1274 })
1275 
1276 DEF_TRAVERSE_TYPELOC(UnaryTransformType, {
1277  TRY_TO(TraverseTypeLoc(TL.getUnderlyingTInfo()->getTypeLoc()));
1278 })
1279 
1280 DEF_TRAVERSE_TYPELOC(AutoType, {
1281  TRY_TO(TraverseType(TL.getTypePtr()->getDeducedType()));
1282 })
1283 
1284 DEF_TRAVERSE_TYPELOC(DeducedTemplateSpecializationType, {
1285  TRY_TO(TraverseTemplateName(TL.getTypePtr()->getTemplateName()));
1286  TRY_TO(TraverseType(TL.getTypePtr()->getDeducedType()));
1287 })
1288 
1289 DEF_TRAVERSE_TYPELOC(RecordType, {})
1290 DEF_TRAVERSE_TYPELOC(EnumType, {})
1291 DEF_TRAVERSE_TYPELOC(TemplateTypeParmType, {})
1292 DEF_TRAVERSE_TYPELOC(SubstTemplateTypeParmType, {
1293  TRY_TO(TraverseType(TL.getTypePtr()->getReplacementType()));
1294 })
1295 DEF_TRAVERSE_TYPELOC(SubstTemplateTypeParmPackType, {
1296  TRY_TO(TraverseTemplateArgument(TL.getTypePtr()->getArgumentPack()));
1297 })
1298 
1299 // FIXME: use the loc for the template name?
1300 DEF_TRAVERSE_TYPELOC(TemplateSpecializationType, {
1301  TRY_TO(TraverseTemplateName(TL.getTypePtr()->getTemplateName()));
1302  for (unsigned I = 0, E = TL.getNumArgs(); I != E; ++I) {
1303  TRY_TO(TraverseTemplateArgumentLoc(TL.getArgLoc(I)));
1304  }
1305 })
1306 
1308 
1309 DEF_TRAVERSE_TYPELOC(ParenType, { TRY_TO(TraverseTypeLoc(TL.getInnerLoc())); })
1310 
1312  { TRY_TO(TraverseTypeLoc(TL.getModifiedLoc())); })
1313 
1315  if (TL.getQualifierLoc()) {
1316  TRY_TO(TraverseNestedNameSpecifierLoc(TL.getQualifierLoc()));
1317  }
1318  TRY_TO(TraverseTypeLoc(TL.getNamedTypeLoc()));
1319 })
1320 
1322  TRY_TO(TraverseNestedNameSpecifierLoc(TL.getQualifierLoc()));
1323 })
1324 
1326  if (TL.getQualifierLoc()) {
1327  TRY_TO(TraverseNestedNameSpecifierLoc(TL.getQualifierLoc()));
1328  }
1329 
1330  for (unsigned I = 0, E = TL.getNumArgs(); I != E; ++I) {
1331  TRY_TO(TraverseTemplateArgumentLoc(TL.getArgLoc(I)));
1332  }
1333 })
1334 
1336  { TRY_TO(TraverseTypeLoc(TL.getPatternLoc())); })
1337 
1339 
1341 
1343  // We have to watch out here because an ObjCInterfaceType's base
1344  // type is itself.
1345  if (TL.getTypePtr()->getBaseType().getTypePtr() != TL.getTypePtr())
1346  TRY_TO(TraverseTypeLoc(TL.getBaseLoc()));
1347  for (unsigned i = 0, n = TL.getNumTypeArgs(); i != n; ++i)
1348  TRY_TO(TraverseTypeLoc(TL.getTypeArgTInfo(i)->getTypeLoc()));
1349 })
1350 
1352  { TRY_TO(TraverseTypeLoc(TL.getPointeeLoc())); })
1353 
1354 DEF_TRAVERSE_TYPELOC(AtomicType, { TRY_TO(TraverseTypeLoc(TL.getValueLoc())); })
1355 
1356 DEF_TRAVERSE_TYPELOC(PipeType, { TRY_TO(TraverseTypeLoc(TL.getValueLoc())); })
1357 
1358 #undef DEF_TRAVERSE_TYPELOC
1359 
1360 // ----------------- Decl traversal -----------------
1361 //
1362 // For a Decl, we automate (in the DEF_TRAVERSE_DECL macro) traversing
1363 // the children that come from the DeclContext associated with it.
1364 // Therefore each Traverse* only needs to worry about children other
1365 // than those.
1366 
1367 template <typename Derived>
1369  const Decl *Child) {
1370  // BlockDecls are traversed through BlockExprs,
1371  // CapturedDecls are traversed through CapturedStmts.
1372  if (isa<BlockDecl>(Child) || isa<CapturedDecl>(Child))
1373  return true;
1374  // Lambda classes are traversed through LambdaExprs.
1375  if (const CXXRecordDecl* Cls = dyn_cast<CXXRecordDecl>(Child))
1376  return Cls->isLambda();
1377  return false;
1378 }
1379 
1380 template <typename Derived>
1382  if (!DC)
1383  return true;
1384 
1385  for (auto *Child : DC->decls()) {
1387  TRY_TO(TraverseDecl(Child));
1388  }
1389 
1390  return true;
1391 }
1392 
1393 // This macro makes available a variable D, the passed-in decl.
1394 #define DEF_TRAVERSE_DECL(DECL, CODE) \
1395  template <typename Derived> \
1396  bool RecursiveASTVisitor<Derived>::Traverse##DECL(DECL *D) { \
1397  bool ShouldVisitChildren = true; \
1398  bool ReturnValue = true; \
1399  if (!getDerived().shouldTraversePostOrder()) \
1400  TRY_TO(WalkUpFrom##DECL(D)); \
1401  { CODE; } \
1402  if (ReturnValue && ShouldVisitChildren) \
1403  TRY_TO(TraverseDeclContextHelper(dyn_cast<DeclContext>(D))); \
1404  if (ReturnValue && getDerived().shouldTraversePostOrder()) \
1405  TRY_TO(WalkUpFrom##DECL(D)); \
1406  return ReturnValue; \
1407  }
1408 
1409 DEF_TRAVERSE_DECL(AccessSpecDecl, {})
1410 
1411 DEF_TRAVERSE_DECL(BlockDecl, {
1412  if (TypeSourceInfo *TInfo = D->getSignatureAsWritten())
1413  TRY_TO(TraverseTypeLoc(TInfo->getTypeLoc()));
1414  TRY_TO(TraverseStmt(D->getBody()));
1415  for (const auto &I : D->captures()) {
1416  if (I.hasCopyExpr()) {
1417  TRY_TO(TraverseStmt(I.getCopyExpr()));
1418  }
1419  }
1420  ShouldVisitChildren = false;
1421 })
1422 
1423 DEF_TRAVERSE_DECL(CapturedDecl, {
1424  TRY_TO(TraverseStmt(D->getBody()));
1426 })
1427 
1429 
1431  { TRY_TO(TraverseStmt(D->getAsmString())); })
1432 
1434 
1436  // Friend is either decl or a type.
1437  if (D->getFriendType())
1438  TRY_TO(TraverseTypeLoc(D->getFriendType()->getTypeLoc()));
1439  else
1440  TRY_TO(TraverseDecl(D->getFriendDecl()));
1441 })
1442 
1444  if (D->getFriendType())
1445  TRY_TO(TraverseTypeLoc(D->getFriendType()->getTypeLoc()));
1446  else
1447  TRY_TO(TraverseDecl(D->getFriendDecl()));
1448  for (unsigned I = 0, E = D->getNumTemplateParameters(); I < E; ++I) {
1449  TemplateParameterList *TPL = D->getTemplateParameterList(I);
1450  for (TemplateParameterList::iterator ITPL = TPL->begin(), ETPL = TPL->end();
1451  ITPL != ETPL; ++ITPL) {
1452  TRY_TO(TraverseDecl(*ITPL));
1453  }
1454  }
1455 })
1456 
1458  TRY_TO(TraverseDecl(D->getSpecialization()));
1459 
1460  if (D->hasExplicitTemplateArgs()) {
1461  const TemplateArgumentListInfo &args = D->templateArgs();
1462  TRY_TO(TraverseTemplateArgumentLocsHelper(args.getArgumentArray(),
1463  args.size()));
1464  }
1465 })
1466 
1468 
1470 
1471 DEF_TRAVERSE_DECL(ObjCPropertyImplDecl, {// FIXME: implement this
1472  })
1473 
1475  TRY_TO(TraverseStmt(D->getAssertExpr()));
1476  TRY_TO(TraverseStmt(D->getMessage()));
1477 })
1478 
1481  {// Code in an unnamed namespace shows up automatically in
1482  // decls_begin()/decls_end(). Thus we don't need to recurse on
1483  // D->getAnonymousNamespace().
1484  })
1485 
1487 
1489 
1491 
1493  TRY_TO(TraverseNestedNameSpecifierLoc(D->getQualifierLoc()));
1494 
1495  // We shouldn't traverse an aliased namespace, since it will be
1496  // defined (and, therefore, traversed) somewhere else.
1497  ShouldVisitChildren = false;
1498 })
1499 
1500 DEF_TRAVERSE_DECL(LabelDecl, {// There is no code in a LabelDecl.
1501  })
1502 
1504  NamespaceDecl,
1505  {// Code in an unnamed namespace shows up automatically in
1506  // decls_begin()/decls_end(). Thus we don't need to recurse on
1507  // D->getAnonymousNamespace().
1508  })
1509 
1510 DEF_TRAVERSE_DECL(ObjCCompatibleAliasDecl, {// FIXME: implement
1511  })
1512 
1513 DEF_TRAVERSE_DECL(ObjCCategoryDecl, {// FIXME: implement
1514  if (ObjCTypeParamList *typeParamList = D->getTypeParamList()) {
1515  for (auto typeParam : *typeParamList) {
1516  TRY_TO(TraverseObjCTypeParamDecl(typeParam));
1517  }
1518  }
1519 })
1520 
1521 DEF_TRAVERSE_DECL(ObjCCategoryImplDecl, {// FIXME: implement
1522  })
1523 
1524 DEF_TRAVERSE_DECL(ObjCImplementationDecl, {// FIXME: implement
1525  })
1526 
1527 DEF_TRAVERSE_DECL(ObjCInterfaceDecl, {// FIXME: implement
1528  if (ObjCTypeParamList *typeParamList = D->getTypeParamListAsWritten()) {
1529  for (auto typeParam : *typeParamList) {
1530  TRY_TO(TraverseObjCTypeParamDecl(typeParam));
1531  }
1532  }
1533 
1534  if (TypeSourceInfo *superTInfo = D->getSuperClassTInfo()) {
1535  TRY_TO(TraverseTypeLoc(superTInfo->getTypeLoc()));
1536  }
1537 })
1538 
1539 DEF_TRAVERSE_DECL(ObjCProtocolDecl, {// FIXME: implement
1540  })
1541 
1543  if (D->getReturnTypeSourceInfo()) {
1544  TRY_TO(TraverseTypeLoc(D->getReturnTypeSourceInfo()->getTypeLoc()));
1545  }
1546  for (ParmVarDecl *Parameter : D->parameters()) {
1548  }
1549  if (D->isThisDeclarationADefinition()) {
1550  TRY_TO(TraverseStmt(D->getBody()));
1551  }
1552  ShouldVisitChildren = false;
1553 })
1554 
1556  if (D->hasExplicitBound()) {
1557  TRY_TO(TraverseTypeLoc(D->getTypeSourceInfo()->getTypeLoc()));
1558  // We shouldn't traverse D->getTypeForDecl(); it's a result of
1559  // declaring the type alias, not something that was written in the
1560  // source.
1561  }
1562 })
1563 
1565  if (D->getTypeSourceInfo())
1566  TRY_TO(TraverseTypeLoc(D->getTypeSourceInfo()->getTypeLoc()));
1567  else
1568  TRY_TO(TraverseType(D->getType()));
1569  ShouldVisitChildren = false;
1570 })
1571 
1573  TRY_TO(TraverseNestedNameSpecifierLoc(D->getQualifierLoc()));
1574  TRY_TO(TraverseDeclarationNameInfo(D->getNameInfo()));
1575 })
1576 
1578 
1580  TRY_TO(TraverseNestedNameSpecifierLoc(D->getQualifierLoc()));
1581 })
1582 
1584 
1586 
1588  for (auto *I : D->varlists()) {
1589  TRY_TO(TraverseStmt(I));
1590  }
1591  })
1592 
1594  for (auto *C : D->clauselists()) {
1595  TRY_TO(TraverseOMPClause(C));
1596  }
1597 })
1598 
1600  TRY_TO(TraverseStmt(D->getCombiner()));
1601  if (auto *Initializer = D->getInitializer())
1602  TRY_TO(TraverseStmt(Initializer));
1603  TRY_TO(TraverseType(D->getType()));
1604  return true;
1605 })
1606 
1607 DEF_TRAVERSE_DECL(OMPCapturedExprDecl, { TRY_TO(TraverseVarHelper(D)); })
1608 
1609 // A helper method for TemplateDecl's children.
1610 template <typename Derived>
1612  TemplateParameterList *TPL) {
1613  if (TPL) {
1614  for (TemplateParameterList::iterator I = TPL->begin(), E = TPL->end();
1615  I != E; ++I) {
1616  TRY_TO(TraverseDecl(*I));
1617  }
1618  }
1619  return true;
1620 }
1621 
1622 template <typename Derived>
1623 template <typename T>
1625  for (unsigned i = 0; i < D->getNumTemplateParameterLists(); i++) {
1626  TemplateParameterList *TPL = D->getTemplateParameterList(i);
1627  TraverseTemplateParameterListHelper(TPL);
1628  }
1629  return true;
1630 }
1631 
1632 template <typename Derived>
1634  ClassTemplateDecl *D) {
1635  for (auto *SD : D->specializations()) {
1636  for (auto *RD : SD->redecls()) {
1637  // We don't want to visit injected-class-names in this traversal.
1638  if (cast<CXXRecordDecl>(RD)->isInjectedClassName())
1639  continue;
1640 
1641  switch (
1642  cast<ClassTemplateSpecializationDecl>(RD)->getSpecializationKind()) {
1643  // Visit the implicit instantiations with the requested pattern.
1644  case TSK_Undeclared:
1646  TRY_TO(TraverseDecl(RD));
1647  break;
1648 
1649  // We don't need to do anything on an explicit instantiation
1650  // or explicit specialization because there will be an explicit
1651  // node for it elsewhere.
1655  break;
1656  }
1657  }
1658  }
1659 
1660  return true;
1661 }
1662 
1663 template <typename Derived>
1665  VarTemplateDecl *D) {
1666  for (auto *SD : D->specializations()) {
1667  for (auto *RD : SD->redecls()) {
1668  switch (
1669  cast<VarTemplateSpecializationDecl>(RD)->getSpecializationKind()) {
1670  case TSK_Undeclared:
1672  TRY_TO(TraverseDecl(RD));
1673  break;
1674 
1678  break;
1679  }
1680  }
1681  }
1682 
1683  return true;
1684 }
1685 
1686 // A helper method for traversing the instantiations of a
1687 // function while skipping its specializations.
1688 template <typename Derived>
1690  FunctionTemplateDecl *D) {
1691  for (auto *FD : D->specializations()) {
1692  for (auto *RD : FD->redecls()) {
1693  switch (RD->getTemplateSpecializationKind()) {
1694  case TSK_Undeclared:
1696  // We don't know what kind of FunctionDecl this is.
1697  TRY_TO(TraverseDecl(RD));
1698  break;
1699 
1700  // FIXME: For now traverse explicit instantiations here. Change that
1701  // once they are represented as dedicated nodes in the AST.
1704  TRY_TO(TraverseDecl(RD));
1705  break;
1706 
1708  break;
1709  }
1710  }
1711  }
1712 
1713  return true;
1714 }
1715 
1716 // This macro unifies the traversal of class, variable and function
1717 // template declarations.
1718 #define DEF_TRAVERSE_TMPL_DECL(TMPLDECLKIND) \
1719  DEF_TRAVERSE_DECL(TMPLDECLKIND##TemplateDecl, { \
1720  TRY_TO(TraverseTemplateParameterListHelper(D->getTemplateParameters())); \
1721  TRY_TO(TraverseDecl(D->getTemplatedDecl())); \
1722  \
1723  /* By default, we do not traverse the instantiations of \
1724  class templates since they do not appear in the user code. The \
1725  following code optionally traverses them. \
1726  \
1727  We only traverse the class instantiations when we see the canonical \
1728  declaration of the template, to ensure we only visit them once. */ \
1729  if (getDerived().shouldVisitTemplateInstantiations() && \
1730  D == D->getCanonicalDecl()) \
1731  TRY_TO(TraverseTemplateInstantiations(D)); \
1732  \
1733  /* Note that getInstantiatedFromMemberTemplate() is just a link \
1734  from a template instantiation back to the template from which \
1735  it was instantiated, and thus should not be traversed. */ \
1736  })
1737 
1740 DEF_TRAVERSE_TMPL_DECL(Function)
1741 
1743  // D is the "T" in something like
1744  // template <template <typename> class T> class container { };
1746  if (D->hasDefaultArgument() && !D->defaultArgumentWasInherited()) {
1747  TRY_TO(TraverseTemplateArgumentLoc(D->getDefaultArgument()));
1748  }
1749  TRY_TO(TraverseTemplateParameterListHelper(D->getTemplateParameters()));
1750 })
1751 
1753  TRY_TO(TraverseTemplateParameterListHelper(D->getTemplateParameters()));
1754 })
1755 
1757  // D is the "T" in something like "template<typename T> class vector;"
1758  if (D->getTypeForDecl())
1759  TRY_TO(TraverseType(QualType(D->getTypeForDecl(), 0)));
1760  if (D->hasDefaultArgument() && !D->defaultArgumentWasInherited())
1761  TRY_TO(TraverseTypeLoc(D->getDefaultArgumentInfo()->getTypeLoc()));
1762 })
1763 
1765  TRY_TO(TraverseTypeLoc(D->getTypeSourceInfo()->getTypeLoc()));
1766  // We shouldn't traverse D->getTypeForDecl(); it's a result of
1767  // declaring the typedef, not something that was written in the
1768  // source.
1769 })
1770 
1772  TRY_TO(TraverseTypeLoc(D->getTypeSourceInfo()->getTypeLoc()));
1773  // We shouldn't traverse D->getTypeForDecl(); it's a result of
1774  // declaring the type alias, not something that was written in the
1775  // source.
1776 })
1777 
1780  TRY_TO(TraverseTemplateParameterListHelper(D->getTemplateParameters()));
1781 })
1782 
1784  // A dependent using declaration which was marked with 'typename'.
1785  // template<class T> class A : public B<T> { using typename B<T>::foo; };
1786  TRY_TO(TraverseNestedNameSpecifierLoc(D->getQualifierLoc()));
1787  // We shouldn't traverse D->getTypeForDecl(); it's a result of
1788  // declaring the type, not something that was written in the
1789  // source.
1790 })
1791 
1793  TRY_TO(TraverseDeclTemplateParameterLists(D));
1794 
1795  if (D->getTypeForDecl())
1796  TRY_TO(TraverseType(QualType(D->getTypeForDecl(), 0)));
1797 
1798  TRY_TO(TraverseNestedNameSpecifierLoc(D->getQualifierLoc()));
1799  // The enumerators are already traversed by
1800  // decls_begin()/decls_end().
1801 })
1802 
1803 // Helper methods for RecordDecl and its children.
1804 template <typename Derived>
1806  // We shouldn't traverse D->getTypeForDecl(); it's a result of
1807  // declaring the type, not something that was written in the source.
1808 
1809  TRY_TO(TraverseDeclTemplateParameterLists(D));
1811  return true;
1812 }
1813 
1814 template <typename Derived>
1816  const CXXBaseSpecifier &Base) {
1818  return true;
1819 }
1820 
1821 template <typename Derived>
1823  if (!TraverseRecordHelper(D))
1824  return false;
1825  if (D->isCompleteDefinition()) {
1826  for (const auto &I : D->bases()) {
1828  }
1829  // We don't traverse the friends or the conversions, as they are
1830  // already in decls_begin()/decls_end().
1831  }
1832  return true;
1833 }
1834 
1835 DEF_TRAVERSE_DECL(RecordDecl, { TRY_TO(TraverseRecordHelper(D)); })
1836 
1837 DEF_TRAVERSE_DECL(CXXRecordDecl, { TRY_TO(TraverseCXXRecordHelper(D)); })
1838 
1839 #define DEF_TRAVERSE_TMPL_SPEC_DECL(TMPLDECLKIND) \
1840  DEF_TRAVERSE_DECL(TMPLDECLKIND##TemplateSpecializationDecl, { \
1841  /* For implicit instantiations ("set<int> x;"), we don't want to \
1842  recurse at all, since the instatiated template isn't written in \
1843  the source code anywhere. (Note the instatiated *type* -- \
1844  set<int> -- is written, and will still get a callback of \
1845  TemplateSpecializationType). For explicit instantiations \
1846  ("template set<int>;"), we do need a callback, since this \
1847  is the only callback that's made for this instantiation. \
1848  We use getTypeAsWritten() to distinguish. */ \
1849  if (TypeSourceInfo *TSI = D->getTypeAsWritten()) \
1850  TRY_TO(TraverseTypeLoc(TSI->getTypeLoc())); \
1851  \
1855  /* Returning from here skips traversing the \
1856  declaration context of the *TemplateSpecializationDecl \
1857  (embedded in the DEF_TRAVERSE_DECL() macro) \
1858  which contains the instantiated members of the template. */ \
1859  return true; \
1860  })
1861 
1864 
1865 template <typename Derived>
1867  const TemplateArgumentLoc *TAL, unsigned Count) {
1868  for (unsigned I = 0; I < Count; ++I) {
1870  }
1871  return true;
1872 }
1873 
1874 #define DEF_TRAVERSE_TMPL_PART_SPEC_DECL(TMPLDECLKIND, DECLKIND) \
1875  DEF_TRAVERSE_DECL(TMPLDECLKIND##TemplatePartialSpecializationDecl, { \
1876  /* The partial specialization. */ \
1877  if (TemplateParameterList *TPL = D->getTemplateParameters()) { \
1878  for (TemplateParameterList::iterator I = TPL->begin(), E = TPL->end(); \
1879  I != E; ++I) { \
1880  TRY_TO(TraverseDecl(*I)); \
1881  } \
1882  } \
1883  /* The args that remains unspecialized. */ \
1884  TRY_TO(TraverseTemplateArgumentLocsHelper( \
1885  D->getTemplateArgsAsWritten()->getTemplateArgs(), \
1886  D->getTemplateArgsAsWritten()->NumTemplateArgs)); \
1887  \
1888  /* Don't need the *TemplatePartialSpecializationHelper, even \
1889  though that's our parent class -- we already visit all the \
1890  template args here. */ \
1891  TRY_TO(Traverse##DECLKIND##Helper(D)); \
1892  \
1893  /* Instantiations will have been visited with the primary template. */ \
1894  })
1895 
1896 DEF_TRAVERSE_TMPL_PART_SPEC_DECL(Class, CXXRecord)
1898 
1899 DEF_TRAVERSE_DECL(EnumConstantDecl, { TRY_TO(TraverseStmt(D->getInitExpr())); })
1900 
1902  // Like UnresolvedUsingTypenameDecl, but without the 'typename':
1903  // template <class T> Class A : public Base<T> { using Base<T>::foo; };
1905  TRY_TO(TraverseDeclarationNameInfo(D->getNameInfo()));
1906 })
1907 
1909 
1910 template <typename Derived>
1912  TRY_TO(TraverseDeclTemplateParameterLists(D));
1914  if (D->getTypeSourceInfo())
1916  else
1917  TRY_TO(TraverseType(D->getType()));
1918  return true;
1919 }
1920 
1922  TRY_TO(TraverseVarHelper(D));
1923  for (auto *Binding : D->bindings()) {
1924  TRY_TO(TraverseDecl(Binding));
1925  }
1926 })
1927 
1930  TRY_TO(TraverseStmt(D->getBinding()));
1931 })
1932 
1933 DEF_TRAVERSE_DECL(MSPropertyDecl, { TRY_TO(TraverseDeclaratorHelper(D)); })
1934 
1936  TRY_TO(TraverseDeclaratorHelper(D));
1937  if (D->isBitField())
1938  TRY_TO(TraverseStmt(D->getBitWidth()));
1939  else if (D->hasInClassInitializer())
1940  TRY_TO(TraverseStmt(D->getInClassInitializer()));
1941 })
1942 
1944  TRY_TO(TraverseDeclaratorHelper(D));
1945  if (D->isBitField())
1946  TRY_TO(TraverseStmt(D->getBitWidth()));
1947  // FIXME: implement the rest.
1948 })
1949 
1951  TRY_TO(TraverseDeclaratorHelper(D));
1952  if (D->isBitField())
1953  TRY_TO(TraverseStmt(D->getBitWidth()));
1954  // FIXME: implement the rest.
1955 })
1956 
1957 template <typename Derived>
1959  TRY_TO(TraverseDeclTemplateParameterLists(D));
1962 
1963  // If we're an explicit template specialization, iterate over the
1964  // template args that were explicitly specified. If we were doing
1965  // this in typing order, we'd do it between the return type and
1966  // the function args, but both are handled by the FunctionTypeLoc
1967  // above, so we have to choose one side. I've decided to do before.
1968  if (const FunctionTemplateSpecializationInfo *FTSI =
1970  if (FTSI->getTemplateSpecializationKind() != TSK_Undeclared &&
1971  FTSI->getTemplateSpecializationKind() != TSK_ImplicitInstantiation) {
1972  // A specialization might not have explicit template arguments if it has
1973  // a templated return type and concrete arguments.
1974  if (const ASTTemplateArgumentListInfo *TALI =
1975  FTSI->TemplateArgumentsAsWritten) {
1976  TRY_TO(TraverseTemplateArgumentLocsHelper(TALI->getTemplateArgs(),
1977  TALI->NumTemplateArgs));
1978  }
1979  }
1980  }
1981 
1982  // Visit the function type itself, which can be either
1983  // FunctionNoProtoType or FunctionProtoType, or a typedef. This
1984  // also covers the return type and the function parameters,
1985  // including exception specifications.
1986  if (TypeSourceInfo *TSI = D->getTypeSourceInfo()) {
1987  TRY_TO(TraverseTypeLoc(TSI->getTypeLoc()));
1988  } else if (getDerived().shouldVisitImplicitCode()) {
1989  // Visit parameter variable declarations of the implicit function
1990  // if the traverser is visiting implicit code. Parameter variable
1991  // declarations do not have valid TypeSourceInfo, so to visit them
1992  // we need to traverse the declarations explicitly.
1993  for (ParmVarDecl *Parameter : D->parameters()) {
1995  }
1996  }
1997 
1998  if (CXXConstructorDecl *Ctor = dyn_cast<CXXConstructorDecl>(D)) {
1999  // Constructor initializers.
2000  for (auto *I : Ctor->inits()) {
2002  }
2003  }
2004 
2005  if (D->isThisDeclarationADefinition()) {
2006  TRY_TO(TraverseStmt(D->getBody())); // Function body.
2007  }
2008  return true;
2009 }
2010 
2012  // We skip decls_begin/decls_end, which are already covered by
2013  // TraverseFunctionHelper().
2014  ShouldVisitChildren = false;
2015  ReturnValue = TraverseFunctionHelper(D);
2016 })
2017 
2019  // We skip decls_begin/decls_end, which are already covered by
2020  // TraverseFunctionHelper().
2021  ShouldVisitChildren = false;
2022  ReturnValue = TraverseFunctionHelper(D);
2023 })
2024 
2026  // We skip decls_begin/decls_end, which are already covered by
2027  // TraverseFunctionHelper().
2028  ShouldVisitChildren = false;
2029  ReturnValue = TraverseFunctionHelper(D);
2030 })
2031 
2033  // We skip decls_begin/decls_end, which are already covered by
2034  // TraverseFunctionHelper().
2035  ShouldVisitChildren = false;
2036  ReturnValue = TraverseFunctionHelper(D);
2037 })
2038 
2039 // CXXConversionDecl is the declaration of a type conversion operator.
2040 // It's not a cast expression.
2042  // We skip decls_begin/decls_end, which are already covered by
2043  // TraverseFunctionHelper().
2044  ShouldVisitChildren = false;
2045  ReturnValue = TraverseFunctionHelper(D);
2046 })
2047 
2049  // We skip decls_begin/decls_end, which are already covered by
2050  // TraverseFunctionHelper().
2051  ShouldVisitChildren = false;
2052  ReturnValue = TraverseFunctionHelper(D);
2053 })
2054 
2055 template <typename Derived>
2057  TRY_TO(TraverseDeclaratorHelper(D));
2058  // Default params are taken care of when we traverse the ParmVarDecl.
2059  if (!isa<ParmVarDecl>(D) &&
2060  (!D->isCXXForRangeDecl() || getDerived().shouldVisitImplicitCode()))
2061  TRY_TO(TraverseStmt(D->getInit()));
2062  return true;
2063 }
2064 
2065 DEF_TRAVERSE_DECL(VarDecl, { TRY_TO(TraverseVarHelper(D)); })
2066 
2067 DEF_TRAVERSE_DECL(ImplicitParamDecl, { TRY_TO(TraverseVarHelper(D)); })
2068 
2070  // A non-type template parameter, e.g. "S" in template<int S> class Foo ...
2071  TRY_TO(TraverseDeclaratorHelper(D));
2072  if (D->hasDefaultArgument() && !D->defaultArgumentWasInherited())
2073  TRY_TO(TraverseStmt(D->getDefaultArgument()));
2074 })
2075 
2077  TRY_TO(TraverseVarHelper(D));
2078 
2079  if (D->hasDefaultArg() && D->hasUninstantiatedDefaultArg() &&
2080  !D->hasUnparsedDefaultArg())
2081  TRY_TO(TraverseStmt(D->getUninstantiatedDefaultArg()));
2082 
2083  if (D->hasDefaultArg() && !D->hasUninstantiatedDefaultArg() &&
2084  !D->hasUnparsedDefaultArg())
2085  TRY_TO(TraverseStmt(D->getDefaultArg()));
2086 })
2087 
2088 #undef DEF_TRAVERSE_DECL
2089 
2090 // ----------------- Stmt traversal -----------------
2091 //
2092 // For stmts, we automate (in the DEF_TRAVERSE_STMT macro) iterating
2093 // over the children defined in children() (every stmt defines these,
2094 // though sometimes the range is empty). Each individual Traverse*
2095 // method only needs to worry about children other than those. To see
2096 // what children() does for a given class, see, e.g.,
2097 // http://clang.llvm.org/doxygen/Stmt_8cpp_source.html
2098 
2099 // This macro makes available a variable S, the passed-in stmt.
2100 #define DEF_TRAVERSE_STMT(STMT, CODE) \
2101  template <typename Derived> \
2103  STMT *S, DataRecursionQueue *Queue) { \
2104  bool ShouldVisitChildren = true; \
2105  bool ReturnValue = true; \
2107  TRY_TO(WalkUpFrom##STMT(S)); \
2108  { CODE; } \
2109  if (ShouldVisitChildren) { \
2110  for (Stmt * SubStmt : getDerived().getStmtChildren(S)) { \
2111  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(SubStmt); \
2112  } \
2113  } \
2114  if (!Queue && ReturnValue && getDerived().shouldTraversePostOrder()) \
2115  TRY_TO(WalkUpFrom##STMT(S)); \
2116  return ReturnValue; \
2117  }
2118 
2120  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getAsmString());
2121  for (unsigned I = 0, E = S->getNumInputs(); I < E; ++I) {
2122  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getInputConstraintLiteral(I));
2123  }
2124  for (unsigned I = 0, E = S->getNumOutputs(); I < E; ++I) {
2125  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getOutputConstraintLiteral(I));
2126  }
2127  for (unsigned I = 0, E = S->getNumClobbers(); I < E; ++I) {
2128  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getClobberStringLiteral(I));
2129  }
2130  // children() iterates over inputExpr and outputExpr.
2131 })
2132 
2134  MSAsmStmt,
2135  {// FIXME: MS Asm doesn't currently parse Constraints, Clobbers, etc. Once
2136  // added this needs to be implemented.
2137  })
2138 
2140  TRY_TO(TraverseDecl(S->getExceptionDecl()));
2141  // children() iterates over the handler block.
2142 })
2143 
2145  for (auto *I : S->decls()) {
2146  TRY_TO(TraverseDecl(I));
2147  }
2148  // Suppress the default iteration over children() by
2149  // returning. Here's why: A DeclStmt looks like 'type var [=
2150  // initializer]'. The decls above already traverse over the
2151  // initializers, so we don't have to do it again (which
2152  // children() would do).
2153  ShouldVisitChildren = false;
2154 })
2155 
2156 // These non-expr stmts (most of them), do not need any action except
2157 // iterating over the children.
2179 
2182  if (S->getInit())
2183  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getInit());
2184  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getLoopVarStmt());
2185  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getRangeInit());
2186  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getBody());
2187  // Visit everything else only if shouldVisitImplicitCode().
2188  ShouldVisitChildren = false;
2189  }
2190 })
2191 
2193  TRY_TO(TraverseNestedNameSpecifierLoc(S->getQualifierLoc()));
2194  TRY_TO(TraverseDeclarationNameInfo(S->getNameInfo()));
2195 })
2196 
2200 
2202 
2204  TRY_TO(TraverseNestedNameSpecifierLoc(S->getQualifierLoc()));
2205  TRY_TO(TraverseDeclarationNameInfo(S->getMemberNameInfo()));
2206  if (S->hasExplicitTemplateArgs()) {
2207  TRY_TO(TraverseTemplateArgumentLocsHelper(S->getTemplateArgs(),
2208  S->getNumTemplateArgs()));
2209  }
2210 })
2211 
2213  TRY_TO(TraverseNestedNameSpecifierLoc(S->getQualifierLoc()));
2214  TRY_TO(TraverseDeclarationNameInfo(S->getNameInfo()));
2215  TRY_TO(TraverseTemplateArgumentLocsHelper(S->getTemplateArgs(),
2216  S->getNumTemplateArgs()));
2217 })
2218 
2220  TRY_TO(TraverseNestedNameSpecifierLoc(S->getQualifierLoc()));
2221  TRY_TO(TraverseDeclarationNameInfo(S->getNameInfo()));
2222  if (S->hasExplicitTemplateArgs()) {
2223  TRY_TO(TraverseTemplateArgumentLocsHelper(S->getTemplateArgs(),
2224  S->getNumTemplateArgs()));
2225  }
2226 })
2227 
2229  TRY_TO(TraverseNestedNameSpecifierLoc(S->getQualifierLoc()));
2230  TRY_TO(TraverseDeclarationNameInfo(S->getMemberNameInfo()));
2231  TRY_TO(TraverseTemplateArgumentLocsHelper(S->getTemplateArgs(),
2232  S->getNumTemplateArgs()));
2233 })
2234 
2237  {// We don't traverse the cast type, as it's not written in the
2238  // source code.
2239  })
2240 
2242  TRY_TO(TraverseTypeLoc(S->getTypeInfoAsWritten()->getTypeLoc()));
2243 })
2244 
2246  TRY_TO(TraverseTypeLoc(S->getTypeInfoAsWritten()->getTypeLoc()));
2247 })
2248 
2250  TRY_TO(TraverseTypeLoc(S->getTypeInfoAsWritten()->getTypeLoc()));
2251 })
2252 
2254  TRY_TO(TraverseTypeLoc(S->getTypeInfoAsWritten()->getTypeLoc()));
2255 })
2256 
2258  TRY_TO(TraverseTypeLoc(S->getTypeInfoAsWritten()->getTypeLoc()));
2259 })
2260 
2262  TRY_TO(TraverseTypeLoc(S->getTypeInfoAsWritten()->getTypeLoc()));
2263 })
2264 
2265 template <typename Derived>
2267  InitListExpr *S, DataRecursionQueue *Queue) {
2268  if (S) {
2269  // Skip this if we traverse postorder. We will visit it later
2270  // in PostVisitStmt.
2271  if (!getDerived().shouldTraversePostOrder())
2272  TRY_TO(WalkUpFromInitListExpr(S));
2273 
2274  // All we need are the default actions. FIXME: use a helper function.
2275  for (Stmt *SubStmt : S->children()) {
2277  }
2278  }
2279  return true;
2280 }
2281 
2282 // This method is called once for each pair of syntactic and semantic
2283 // InitListExpr, and it traverses the subtrees defined by the two forms. This
2284 // may cause some of the children to be visited twice, if they appear both in
2285 // the syntactic and the semantic form.
2286 //
2287 // There is no guarantee about which form \p S takes when this method is called.
2288 template <typename Derived>
2290  InitListExpr *S, DataRecursionQueue *Queue) {
2292  S->isSemanticForm() ? S->getSyntacticForm() : S, Queue));
2294  S->isSemanticForm() ? S : S->getSemanticForm(), Queue));
2295  return true;
2296 }
2297 
2298 // GenericSelectionExpr is a special case because the types and expressions
2299 // are interleaved. We also need to watch out for null types (default
2300 // generic associations).
2302  TRY_TO(TraverseStmt(S->getControllingExpr()));
2303  for (unsigned i = 0; i != S->getNumAssocs(); ++i) {
2304  if (TypeSourceInfo *TS = S->getAssocTypeSourceInfo(i))
2305  TRY_TO(TraverseTypeLoc(TS->getTypeLoc()));
2306  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getAssocExpr(i));
2307  }
2308  ShouldVisitChildren = false;
2309 })
2310 
2311 // PseudoObjectExpr is a special case because of the weirdness with
2312 // syntactic expressions and opaque values.
2315  for (PseudoObjectExpr::semantics_iterator i = S->semantics_begin(),
2316  e = S->semantics_end();
2317  i != e; ++i) {
2318  Expr *sub = *i;
2319  if (OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(sub))
2320  sub = OVE->getSourceExpr();
2322  }
2323  ShouldVisitChildren = false;
2324 })
2325 
2327  // This is called for code like 'return T()' where T is a built-in
2328  // (i.e. non-class) type.
2329  TRY_TO(TraverseTypeLoc(S->getTypeSourceInfo()->getTypeLoc()));
2330 })
2331 
2333  // The child-iterator will pick up the other arguments.
2334  TRY_TO(TraverseTypeLoc(S->getAllocatedTypeSourceInfo()->getTypeLoc()));
2335 })
2336 
2338  // The child-iterator will pick up the expression representing
2339  // the field.
2340  // FIMXE: for code like offsetof(Foo, a.b.c), should we get
2341  // making a MemberExpr callbacks for Foo.a, Foo.a.b, and Foo.a.b.c?
2342  TRY_TO(TraverseTypeLoc(S->getTypeSourceInfo()->getTypeLoc()));
2343 })
2344 
2346  // The child-iterator will pick up the arg if it's an expression,
2347  // but not if it's a type.
2348  if (S->isArgumentType())
2349  TRY_TO(TraverseTypeLoc(S->getArgumentTypeInfo()->getTypeLoc()));
2350 })
2351 
2353  // The child-iterator will pick up the arg if it's an expression,
2354  // but not if it's a type.
2355  if (S->isTypeOperand())
2356  TRY_TO(TraverseTypeLoc(S->getTypeOperandSourceInfo()->getTypeLoc()));
2357 })
2358 
2360  TRY_TO(TraverseNestedNameSpecifierLoc(S->getQualifierLoc()));
2361 })
2362 
2364 
2366  // The child-iterator will pick up the arg if it's an expression,
2367  // but not if it's a type.
2368  if (S->isTypeOperand())
2369  TRY_TO(TraverseTypeLoc(S->getTypeOperandSourceInfo()->getTypeLoc()));
2370 })
2371 
2373  for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
2374  TRY_TO(TraverseTypeLoc(S->getArg(I)->getTypeLoc()));
2375 })
2376 
2378  TRY_TO(TraverseTypeLoc(S->getQueriedTypeSourceInfo()->getTypeLoc()));
2379 })
2380 
2382  { TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getQueriedExpression()); })
2383 
2385  // The child-iterator will pick up the expression argument.
2386  TRY_TO(TraverseTypeLoc(S->getWrittenTypeInfo()->getTypeLoc()));
2387 })
2388 
2390  // This is called for code like 'return T()' where T is a class type.
2391  TRY_TO(TraverseTypeLoc(S->getTypeSourceInfo()->getTypeLoc()));
2392 })
2393 
2394 // Walk only the visible parts of lambda expressions.
2396  // Visit the capture list.
2397  for (unsigned I = 0, N = S->capture_size(); I != N; ++I) {
2398  const LambdaCapture *C = S->capture_begin() + I;
2399  if (C->isExplicit() || getDerived().shouldVisitImplicitCode()) {
2400  TRY_TO(TraverseLambdaCapture(S, C, S->capture_init_begin()[I]));
2401  }
2402  }
2403 
2405  // The implicit model is simple: everything else is in the lambda class.
2406  TRY_TO(TraverseDecl(S->getLambdaClass()));
2407  } else {
2408  // We need to poke around to find the bits that might be explicitly written.
2409  TypeLoc TL = S->getCallOperator()->getTypeSourceInfo()->getTypeLoc();
2411 
2412  if (S->hasExplicitParameters()) {
2413  // Visit parameters.
2414  for (unsigned I = 0, N = Proto.getNumParams(); I != N; ++I)
2415  TRY_TO(TraverseDecl(Proto.getParam(I)));
2416  }
2417  if (S->hasExplicitResultType())
2419 
2420  auto *T = Proto.getTypePtr();
2421  for (const auto &E : T->exceptions())
2422  TRY_TO(TraverseType(E));
2423 
2424  if (Expr *NE = T->getNoexceptExpr())
2426 
2427  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getBody());
2428  }
2429  ShouldVisitChildren = false;
2430 })
2431 
2433  // This is called for code like 'T()', where T is a template argument.
2434  TRY_TO(TraverseTypeLoc(S->getTypeSourceInfo()->getTypeLoc()));
2435 })
2436 
2437 // These expressions all might take explicit template arguments.
2438 // We traverse those if so. FIXME: implement these.
2442 
2443 // These exprs (most of them), do not need any action except iterating
2444 // over the children.
2448 
2450  TRY_TO(TraverseDecl(S->getBlockDecl()));
2451  return true; // no child statements to loop through.
2452 })
2453 
2456  TRY_TO(TraverseTypeLoc(S->getTypeSourceInfo()->getTypeLoc()));
2457 })
2460 
2463  TRY_TO(TraverseStmt(S->getExpr()));
2464 })
2465 
2472 
2474  TRY_TO(TraverseNestedNameSpecifierLoc(S->getQualifierLoc()));
2475  if (TypeSourceInfo *ScopeInfo = S->getScopeTypeInfo())
2476  TRY_TO(TraverseTypeLoc(ScopeInfo->getTypeLoc()));
2477  if (TypeSourceInfo *DestroyedTypeInfo = S->getDestroyedTypeInfo())
2478  TRY_TO(TraverseTypeLoc(DestroyedTypeInfo->getTypeLoc()));
2479 })
2480 
2491  // FIXME: The source expression of the OVE should be listed as
2492  // a child of the ArrayInitLoopExpr.
2493  if (OpaqueValueExpr *OVE = S->getCommonExpr())
2494  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(OVE->getSourceExpr());
2495 })
2498 
2500  if (TypeSourceInfo *TInfo = S->getEncodedTypeSourceInfo())
2501  TRY_TO(TraverseTypeLoc(TInfo->getTypeLoc()));
2502 })
2503 
2506 
2508  if (TypeSourceInfo *TInfo = S->getClassReceiverTypeInfo())
2509  TRY_TO(TraverseTypeLoc(TInfo->getTypeLoc()));
2510 })
2511 
2517 
2519  TRY_TO(TraverseTypeLoc(S->getTypeInfoAsWritten()->getTypeLoc()));
2520 })
2521 
2530  TRY_TO(TraverseNestedNameSpecifierLoc(S->getQualifierLoc()));
2531  if (S->hasExplicitTemplateArgs()) {
2532  TRY_TO(TraverseTemplateArgumentLocsHelper(S->getTemplateArgs(),
2533  S->getNumTemplateArgs()));
2534  }
2535 })
2536 
2538  TRY_TO(TraverseNestedNameSpecifierLoc(S->getQualifierLoc()));
2539  if (S->hasExplicitTemplateArgs()) {
2540  TRY_TO(TraverseTemplateArgumentLocsHelper(S->getTemplateArgs(),
2541  S->getNumTemplateArgs()));
2542  }
2543 })
2544 
2549 DEF_TRAVERSE_STMT(CapturedStmt, { TRY_TO(TraverseDecl(S->getCapturedDecl())); })
2550 
2555 
2556 // These operators (all of them) do not need any action except
2557 // iterating over the children.
2572 
2573 // For coroutines expressions, traverse either the operand
2574 // as written or the implied calls, depending on what the
2575 // derived class requests.
2578  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getBody());
2579  ShouldVisitChildren = false;
2580  }
2581 })
2583  if (!getDerived().shouldVisitImplicitCode()) {
2584  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getOperand());
2585  ShouldVisitChildren = false;
2586  }
2587 })
2589  if (!getDerived().shouldVisitImplicitCode()) {
2590  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getOperand());
2591  ShouldVisitChildren = false;
2592  }
2593 })
2595  if (!getDerived().shouldVisitImplicitCode()) {
2596  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getOperand());
2597  ShouldVisitChildren = false;
2598  }
2599 })
2601  if (!getDerived().shouldVisitImplicitCode()) {
2602  TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getOperand());
2603  ShouldVisitChildren = false;
2604  }
2605 })
2606 
2607 // These literals (all of them) do not need any action.
2618 
2619 // Traverse OpenCL: AsType, Convert.
2621 
2622 // OpenMP directives.
2623 template <typename Derived>
2626  for (auto *C : S->clauses()) {
2627  TRY_TO(TraverseOMPClause(C));
2628  }
2629  return true;
2630 }
2631 
2632 template <typename Derived>
2633 bool
2635  return TraverseOMPExecutableDirective(S);
2636 }
2637 
2639  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2640 
2642  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2643 
2645  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2646 
2648  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2649 
2651  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2652 
2654  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2655 
2657  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2658 
2660  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2661 
2663  TRY_TO(TraverseDeclarationNameInfo(S->getDirectiveName()));
2664  TRY_TO(TraverseOMPExecutableDirective(S));
2665 })
2666 
2668  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2669 
2671  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2672 
2674  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2675 
2677  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2678 
2680  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2681 
2683  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2684 
2686  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2687 
2689  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2690 
2692  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2693 
2695  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2696 
2698  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2699 
2701  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2702 
2704  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2705 
2707  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2708 
2710  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2711 
2713  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2714 
2716  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2717 
2719  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2720 
2722  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2723 
2725  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2726 
2728  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2729 
2731  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2732 
2734  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2735 
2737  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2738 
2740  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2741 
2743  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2744 
2746  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2747 
2749  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2750 
2752  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2753 
2755  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2756 
2758  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2759 
2761  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2762 
2764  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2765 
2767  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2768 
2770  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2771 
2773  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2774 
2776  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2777 
2779  { TRY_TO(TraverseOMPExecutableDirective(S)); })
2780 
2781 // OpenMP clauses.
2782 template <typename Derived>
2784  if (!C)
2785  return true;
2786  switch (C->getClauseKind()) {
2787 #define OPENMP_CLAUSE(Name, Class) \
2788  case OMPC_##Name: \
2789  TRY_TO(Visit##Class(static_cast<Class *>(C))); \
2790  break;
2791 #include "clang/Basic/OpenMPKinds.def"
2792  case OMPC_threadprivate:
2793  case OMPC_uniform:
2794  case OMPC_unknown:
2795  break;
2796  }
2797  return true;
2798 }
2799 
2800 template <typename Derived>
2804  return true;
2805 }
2806 
2807 template <typename Derived>
2809  OMPClauseWithPostUpdate *Node) {
2810  TRY_TO(VisitOMPClauseWithPreInit(Node));
2812  return true;
2813 }
2814 
2815 template <typename Derived>
2817  TRY_TO(VisitOMPClauseWithPreInit(C));
2819  return true;
2820 }
2821 
2822 template <typename Derived>
2825  return true;
2826 }
2827 
2828 template <typename Derived>
2829 bool
2831  TRY_TO(VisitOMPClauseWithPreInit(C));
2833  return true;
2834 }
2835 
2836 template <typename Derived>
2839  return true;
2840 }
2841 
2842 template <typename Derived>
2845  return true;
2846 }
2847 
2848 template <typename Derived>
2849 bool
2852  return true;
2853 }
2854 
2855 template <typename Derived>
2857  return true;
2858 }
2859 
2860 template <typename Derived>
2862  return true;
2863 }
2864 
2865 template <typename Derived>
2868  return true;
2869 }
2870 
2871 template <typename Derived>
2874  return true;
2875 }
2876 
2877 template <typename Derived>
2880  return true;
2881 }
2882 
2883 template <typename Derived>
2886  return true;
2887 }
2888 
2889 template <typename Derived>
2892  return true;
2893 }
2894 
2895 template <typename Derived>
2896 bool
2898  TRY_TO(VisitOMPClauseWithPreInit(C));
2900  return true;
2901 }
2902 
2903 template <typename Derived>
2906  return true;
2907 }
2908 
2909 template <typename Derived>
2911  return true;
2912 }
2913 
2914 template <typename Derived>
2916  return true;
2917 }
2918 
2919 template <typename Derived>
2920 bool
2922  return true;
2923 }
2924 
2925 template <typename Derived>
2927  return true;
2928 }
2929 
2930 template <typename Derived>
2932  return true;
2933 }
2934 
2935 template <typename Derived>
2937  return true;
2938 }
2939 
2940 template <typename Derived>
2942  return true;
2943 }
2944 
2945 template <typename Derived>
2947  return true;
2948 }
2949 
2950 template <typename Derived>
2952  return true;
2953 }
2954 
2955 template <typename Derived>
2957  return true;
2958 }
2959 
2960 template <typename Derived>
2962  return true;
2963 }
2964 
2965 template <typename Derived>
2966 template <typename T>
2968  for (auto *E : Node->varlists()) {
2969  TRY_TO(TraverseStmt(E));
2970  }
2971  return true;
2972 }
2973 
2974 template <typename Derived>
2976  TRY_TO(VisitOMPClauseList(C));
2977  for (auto *E : C->private_copies()) {
2978  TRY_TO(TraverseStmt(E));
2979  }
2980  return true;
2981 }
2982 
2983 template <typename Derived>
2985  OMPFirstprivateClause *C) {
2986  TRY_TO(VisitOMPClauseList(C));
2987  TRY_TO(VisitOMPClauseWithPreInit(C));
2988  for (auto *E : C->private_copies()) {
2989  TRY_TO(TraverseStmt(E));
2990  }
2991  for (auto *E : C->inits()) {
2992  TRY_TO(TraverseStmt(E));
2993  }
2994  return true;
2995 }
2996 
2997 template <typename Derived>
2999  OMPLastprivateClause *C) {
3000  TRY_TO(VisitOMPClauseList(C));
3001  TRY_TO(VisitOMPClauseWithPostUpdate(C));
3002  for (auto *E : C->private_copies()) {
3003  TRY_TO(TraverseStmt(E));
3004  }
3005  for (auto *E : C->source_exprs()) {
3006  TRY_TO(TraverseStmt(E));
3007  }
3008  for (auto *E : C->destination_exprs()) {
3009  TRY_TO(TraverseStmt(E));
3010  }
3011  for (auto *E : C->assignment_ops()) {
3012  TRY_TO(TraverseStmt(E));
3013  }
3014  return true;
3015 }
3016 
3017 template <typename Derived>
3019  TRY_TO(VisitOMPClauseList(C));
3020  return true;
3021 }
3022 
3023 template <typename Derived>
3025  TRY_TO(TraverseStmt(C->getStep()));
3026  TRY_TO(TraverseStmt(C->getCalcStep()));
3027  TRY_TO(VisitOMPClauseList(C));
3028  TRY_TO(VisitOMPClauseWithPostUpdate(C));
3029  for (auto *E : C->privates()) {
3030  TRY_TO(TraverseStmt(E));
3031  }
3032  for (auto *E : C->inits()) {
3033  TRY_TO(TraverseStmt(E));
3034  }
3035  for (auto *E : C->updates()) {
3036  TRY_TO(TraverseStmt(E));
3037  }
3038  for (auto *E : C->finals()) {
3039  TRY_TO(TraverseStmt(E));
3040  }
3041  return true;
3042 }
3043 
3044 template <typename Derived>
3047  TRY_TO(VisitOMPClauseList(C));
3048  return true;
3049 }
3050 
3051 template <typename Derived>
3053  TRY_TO(VisitOMPClauseList(C));
3054  for (auto *E : C->source_exprs()) {
3055  TRY_TO(TraverseStmt(E));
3056  }
3057  for (auto *E : C->destination_exprs()) {
3058  TRY_TO(TraverseStmt(E));
3059  }
3060  for (auto *E : C->assignment_ops()) {
3061  TRY_TO(TraverseStmt(E));
3062  }
3063  return true;
3064 }
3065 
3066 template <typename Derived>
3068  OMPCopyprivateClause *C) {
3069  TRY_TO(VisitOMPClauseList(C));
3070  for (auto *E : C->source_exprs()) {
3071  TRY_TO(TraverseStmt(E));
3072  }
3073  for (auto *E : C->destination_exprs()) {
3074  TRY_TO(TraverseStmt(E));
3075  }
3076  for (auto *E : C->assignment_ops()) {
3077  TRY_TO(TraverseStmt(E));
3078  }
3079  return true;
3080 }
3081 
3082 template <typename Derived>
3083 bool
3087  TRY_TO(VisitOMPClauseList(C));
3088  TRY_TO(VisitOMPClauseWithPostUpdate(C));
3089  for (auto *E : C->privates()) {
3090  TRY_TO(TraverseStmt(E));
3091  }
3092  for (auto *E : C->lhs_exprs()) {
3093  TRY_TO(TraverseStmt(E));
3094  }
3095  for (auto *E : C->rhs_exprs()) {
3096  TRY_TO(TraverseStmt(E));
3097  }
3098  for (auto *E : C->reduction_ops()) {
3099  TRY_TO(TraverseStmt(E));
3100  }
3101  return true;
3102 }
3103 
3104 template <typename Derived>
3109  TRY_TO(VisitOMPClauseList(C));
3110  TRY_TO(VisitOMPClauseWithPostUpdate(C));
3111  for (auto *E : C->privates()) {
3112  TRY_TO(TraverseStmt(E));
3113  }
3114  for (auto *E : C->lhs_exprs()) {
3115  TRY_TO(TraverseStmt(E));
3116  }
3117  for (auto *E : C->rhs_exprs()) {
3118  TRY_TO(TraverseStmt(E));
3119  }
3120  for (auto *E : C->reduction_ops()) {
3121  TRY_TO(TraverseStmt(E));
3122  }
3123  return true;
3124 }
3125 
3126 template <typename Derived>
3128  OMPInReductionClause *C) {
3131  TRY_TO(VisitOMPClauseList(C));
3132  TRY_TO(VisitOMPClauseWithPostUpdate(C));
3133  for (auto *E : C->privates()) {
3134  TRY_TO(TraverseStmt(E));
3135  }
3136  for (auto *E : C->lhs_exprs()) {
3137  TRY_TO(TraverseStmt(E));
3138  }
3139  for (auto *E : C->rhs_exprs()) {
3140  TRY_TO(TraverseStmt(E));
3141  }
3142  for (auto *E : C->reduction_ops()) {
3143  TRY_TO(TraverseStmt(E));
3144  }
3145  for (auto *E : C->taskgroup_descriptors())
3146  TRY_TO(TraverseStmt(E));
3147  return true;
3148 }
3149 
3150 template <typename Derived>
3152  TRY_TO(VisitOMPClauseList(C));
3153  return true;
3154 }
3155 
3156 template <typename Derived>
3158  TRY_TO(VisitOMPClauseList(C));
3159  return true;
3160 }
3161 
3162 template <typename Derived>
3164  TRY_TO(VisitOMPClauseWithPreInit(C));
3165  TRY_TO(TraverseStmt(C->getDevice()));
3166  return true;
3167 }
3168 
3169 template <typename Derived>
3171  TRY_TO(VisitOMPClauseList(C));
3172  return true;
3173 }
3174 
3175 template <typename Derived>
3177  OMPNumTeamsClause *C) {
3178  TRY_TO(VisitOMPClauseWithPreInit(C));
3180  return true;
3181 }
3182 
3183 template <typename Derived>
3185  OMPThreadLimitClause *C) {
3186  TRY_TO(VisitOMPClauseWithPreInit(C));
3188  return true;
3189 }
3190 
3191 template <typename Derived>
3193  OMPPriorityClause *C) {
3195  return true;
3196 }
3197 
3198 template <typename Derived>
3200  OMPGrainsizeClause *C) {
3202  return true;
3203 }
3204 
3205 template <typename Derived>
3207  OMPNumTasksClause *C) {
3209  return true;
3210 }
3211 
3212 template <typename Derived>
3214  TRY_TO(TraverseStmt(C->getHint()));
3215  return true;
3216 }
3217 
3218 template <typename Derived>
3220  OMPDistScheduleClause *C) {
3221  TRY_TO(VisitOMPClauseWithPreInit(C));
3223  return true;
3224 }
3225 
3226 template <typename Derived>
3227 bool
3229  return true;
3230 }
3231 
3232 template <typename Derived>
3234  TRY_TO(VisitOMPClauseList(C));
3235  return true;
3236 }
3237 
3238 template <typename Derived>
3240  TRY_TO(VisitOMPClauseList(C));
3241  return true;
3242 }
3243 
3244 template <typename Derived>
3246  OMPUseDevicePtrClause *C) {
3247  TRY_TO(VisitOMPClauseList(C));
3248  return true;
3249 }
3250 
3251 template <typename Derived>
3253  OMPIsDevicePtrClause *C) {
3254  TRY_TO(VisitOMPClauseList(C));
3255  return true;
3256 }
3257 
3258 // FIXME: look at the following tricky-seeming exprs to see if we
3259 // need to recurse on anything. These are ones that have methods
3260 // returning decls or qualtypes or nestednamespecifier -- though I'm
3261 // not sure if they own them -- or just seemed very complicated, or
3262 // had lots of sub-types to explore.
3263 //
3264 // VisitOverloadExpr and its children: recurse on template args? etc?
3265 
3266 // FIXME: go through all the stmts and exprs again, and see which of them
3267 // create new types, and recurse on the types (TypeLocs?) of those.
3268 // Candidates:
3269 //
3270 // http://clang.llvm.org/doxygen/classclang_1_1CXXTypeidExpr.html
3271 // http://clang.llvm.org/doxygen/classclang_1_1UnaryExprOrTypeTraitExpr.html
3272 // http://clang.llvm.org/doxygen/classclang_1_1TypesCompatibleExpr.html
3273 // Every class that has getQualifier.
3274 
3275 #undef DEF_TRAVERSE_STMT
3276 #undef TRAVERSE_STMT
3277 #undef TRAVERSE_STMT_BASE
3278 
3279 #undef TRY_TO
3280 
3281 } // end namespace clang
3282 
3283 #endif // LLVM_CLANG_AST_RECURSIVEASTVISITOR_H
ObjCPropertyRefExpr - A dot-syntax expression to access an ObjC property.
Definition: ExprObjC.h:576
A call to an overloaded operator written using operator syntax.
Definition: ExprCXX.h:77
ObjCIndirectCopyRestoreExpr - Represents the passing of a function argument by indirect copy-restore ...
Definition: ExprObjC.h:1517
This represents &#39;#pragma omp distribute simd&#39; composite directive.
Definition: StmtOpenMP.h:3247
This represents &#39;#pragma omp master&#39; directive.
Definition: StmtOpenMP.h:1430
Represents a type that was referred to using an elaborated type keyword, e.g., struct S...
Definition: Type.h:5131
VarDecl * getCapturedVar() const
Retrieve the declaration of the local variable being captured.
The null pointer literal (C++11 [lex.nullptr])
Definition: ExprCXX.h:595
This represents &#39;#pragma omp task&#39; directive.
Definition: StmtOpenMP.h:1770
This represents a GCC inline-assembly statement extension.
Definition: Stmt.h:2674
Represents a function declaration or definition.
Definition: Decl.h:1737
Represents a &#39;co_await&#39; expression while the type of the promise is dependent.
Definition: ExprCXX.h:4454
helper_expr_const_range reduction_ops() const
This represents &#39;thread_limit&#39; clause in the &#39;#pragma omp ...&#39; directive.
Expr * getInit() const
Get the initializer.
Definition: DeclCXX.h:2453
bool TraverseCXXBaseSpecifier(const CXXBaseSpecifier &Base)
Recursively visit a base specifier.
helper_expr_const_range lhs_exprs() const
This represents clause &#39;copyin&#39; in the &#39;#pragma omp ...&#39; directives.
const TypeClass * getTypePtr() const
Definition: TypeLoc.h:495
A (possibly-)qualified type.
Definition: Type.h:637
base_class_range bases()
Definition: DeclCXX.h:822
#define DEF_TRAVERSE_TMPL_SPEC_DECL(TMPLDECLKIND)
ArrayRef< OMPClause * > clauses()
Definition: StmtOpenMP.h:259
bool shouldWalkTypesOfTypeLocs() const
Return whether this visitor should recurse into the types of TypeLocs.
A type trait used in the implementation of various C++11 and Library TR1 trait templates.
Definition: ExprCXX.h:2429
This represents &#39;atomic_default_mem_order&#39; clause in the &#39;#pragma omp requires&#39; directive.
Definition: OpenMPClause.h:869
DEF_TRAVERSE_TYPE(ComplexType, { TRY_TO(TraverseType(T->getElementType()));}) DEF_TRAVERSE_TYPE(PointerType
NestedNameSpecifierLoc getTemplateQualifierLoc() const
Definition: TemplateBase.h:531
virtual Stmt * getBody() const
getBody - If this Decl represents a declaration for a body of code, such as a function or method defi...
Definition: DeclBase.h:978
helper_expr_const_range rhs_exprs() const
private_copies_range private_copies()
Expr *const * semantics_iterator
Definition: Expr.h:5371
Represents a &#39;co_return&#39; statement in the C++ Coroutines TS.
Definition: StmtCXX.h:434
Stmt - This represents one statement.
Definition: Stmt.h:65
This represents clause &#39;in_reduction&#39; in the &#39;#pragma omp task&#39; directives.
IfStmt - This represents an if/then/else.
Definition: Stmt.h:1686
#define UNARYOP_LIST()
Class that handles pre-initialization statement for some clauses, like &#39;shedule&#39;, &#39;firstprivate&#39; etc...
Definition: OpenMPClause.h:98
An instance of this object exists for each enum constant that is defined.
Definition: Decl.h:2785
Represents the declaration of a typedef-name via the &#39;typedef&#39; type specifier.
Definition: Decl.h:3017
C Language Family Type Representation.
Microsoft&#39;s &#39;__super&#39; specifier, stored as a CXXRecordDecl* of the class it appeared in...
Represents a qualified type name for which the type name is dependent.
Definition: Type.h:5214
This represents &#39;#pragma omp for simd&#39; directive.
Definition: StmtOpenMP.h:1180
spec_range specializations() const
The template argument is an expression, and we&#39;ve not resolved it to one of the other forms yet...
Definition: TemplateBase.h:86
#define TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S)
helper_expr_const_range rhs_exprs() const
Decl - This represents one declaration (or definition), e.g.
Definition: DeclBase.h:86
This represents &#39;grainsize&#39; clause in the &#39;#pragma omp ...&#39; directive.
bool shouldTraversePostOrder() const
Return whether this visitor should traverse post-order.
This represents &#39;#pragma omp teams distribute parallel for&#39; composite directive.
Definition: StmtOpenMP.h:3658
Represents the index of the current element of an array being initialized by an ArrayInitLoopExpr.
Definition: Expr.h:4864
A reference to a name which we were able to look up during parsing but could not resolve to a specifi...
Definition: ExprCXX.h:2827
NestedNameSpecifier * getPrefix() const
Return the prefix of this nested name specifier.
This represents &#39;if&#39; clause in the &#39;#pragma omp ...&#39; directive.
Definition: OpenMPClause.h:239
Defines the C++ template declaration subclasses.
bool isWritten() const
Determine whether this initializer is explicitly written in the source code.
Definition: DeclCXX.h:2423
StringRef P
Represents an attribute applied to a statement.
Definition: Stmt.h:1632
ParenExpr - This represents a parethesized expression, e.g.
Definition: Expr.h:1850
helper_expr_const_range assignment_ops() const
bool isCXXForRangeDecl() const
Determine whether this variable is the for-range-declaration in a C++0x for-range statement...
Definition: Decl.h:1334
This represents &#39;priority&#39; clause in the &#39;#pragma omp ...&#39; directive.
The base class of the type hierarchy.
Definition: Type.h:1406
Represents an empty-declaration.
Definition: Decl.h:4258
helper_expr_const_range lhs_exprs() const
This represents &#39;#pragma omp target teams distribute&#39; combined directive.
Definition: StmtOpenMP.h:3795
Represents Objective-C&#39;s @throw statement.
Definition: StmtObjC.h:312
bool isSemanticForm() const
Definition: Expr.h:4341
llvm::iterator_range< child_iterator > child_range
Definition: Stmt.h:1097
Declaration of a variable template.
The template argument is a declaration that was provided for a pointer, reference, or pointer to member non-type template parameter.
Definition: TemplateBase.h:63
Represent a C++ namespace.
Definition: Decl.h:514
Represents a call to a C++ constructor.
Definition: ExprCXX.h:1261
ObjCSubscriptRefExpr - used for array and dictionary subscripting.
Definition: ExprObjC.h:802
An Embarcadero array type trait, as used in the implementation of __array_rank and __array_extent...
Definition: ExprCXX.h:2513
Expr * getCondition() const
Returns condition.
Definition: OpenMPClause.h:364
A container of type source information.
Definition: Decl.h:86
This represents &#39;update&#39; clause in the &#39;#pragma omp atomic&#39; directive.
Expr * getCondition() const
Returns condition.
Definition: OpenMPClause.h:307
This represents &#39;#pragma omp parallel for&#39; directive.
Definition: StmtOpenMP.h:1551
MS property subscript expression.
Definition: ExprCXX.h:827
DEF_TRAVERSE_DECL(BlockDecl, { if(TypeSourceInfo *TInfo=D->getSignatureAsWritten()) TRY_TO(TraverseTypeLoc(TInfo->getTypeLoc()));TRY_TO(TraverseStmt(D->getBody()));for(const auto &I :D->captures()) { if(I.hasCopyExpr()) { TRY_TO(TraverseStmt(I.getCopyExpr()));} } ShouldVisitChildren=false;}) DEF_TRAVERSE_DECL(CapturedDecl
This represents &#39;#pragma omp target teams distribute parallel for&#39; combined directive.
Definition: StmtOpenMP.h:3863
bool TraverseTemplateName(TemplateName Template)
Recursively visit a template name and dispatch to the appropriate method.
Describes the capture of a variable or of this, or of a C++1y init-capture.
Definition: LambdaCapture.h:25
Represents a C++ constructor within a class.
Definition: DeclCXX.h:2483
Represents a prvalue temporary that is written into memory so that a reference can bind to it...
Definition: ExprCXX.h:4155
Expr * getAlignment()
Returns alignment.
Expr * getNumForLoops() const
Return the number of associated for-loops.
bool isCompleteDefinition() const
Return true if this decl has its body fully specified.
Definition: Decl.h:3168
Represents a #pragma comment line.
Definition: Decl.h:139
An identifier, stored as an IdentifierInfo*.
This represents &#39;#pragma omp target exit data&#39; directive.
Definition: StmtOpenMP.h:2462
This represents &#39;read&#39; clause in the &#39;#pragma omp atomic&#39; directive.
FriendDecl - Represents the declaration of a friend entity, which can be a function, a type, or a templated function or type.
Definition: DeclFriend.h:53
helper_expr_const_range assignment_ops() const
TRY_TO(TraverseType(T->getPointeeType()))
Represents a variable declaration or definition.
Definition: Decl.h:812
This represents clause &#39;private&#39; in the &#39;#pragma omp ...&#39; directives.
ObjCIsaExpr - Represent X->isa and X.isa when X is an ObjC &#39;id&#39; type.
Definition: ExprObjC.h:1436
This represents &#39;num_threads&#39; clause in the &#39;#pragma omp ...&#39; directive.
Definition: OpenMPClause.h:381
CompoundLiteralExpr - [C99 6.5.2.5].
Definition: Expr.h:2931
Wrapper of type source information for a type with non-trivial direct qualifiers. ...
Definition: TypeLoc.h:270
Derived & getDerived()
Return a reference to the derived class.
Represents an empty template argument, e.g., one that has not been deduced.
Definition: TemplateBase.h:56
This represents &#39;defaultmap&#39; clause in the &#39;#pragma omp ...&#39; directive.
decl_range decls() const
decls_begin/decls_end - Iterate over the declarations stored in this context.
Definition: DeclBase.h:1996
Declaration context for names declared as extern "C" in C++.
Definition: Decl.h:221
QualifiedTemplateName * getAsQualifiedTemplateName() const
Retrieve the underlying qualified template name structure, if any.
ObjCMethodDecl - Represents an instance or class method declaration.
Definition: DeclObjC.h:138
bool dataTraverseStmtPre(Stmt *S)
Invoked before visiting a statement or expression via data recursion.
Represents an explicit template argument list in C++, e.g., the "<int>" in "sort<int>".
Definition: TemplateBase.h:603
A namespace, stored as a NamespaceDecl*.
Implicit construction of a std::initializer_list<T> object from an array temporary within list-initia...
Definition: ExprCXX.h:623
Stores a list of template parameters for a TemplateDecl and its derived classes.
Definition: DeclTemplate.h:67
#define BINOP_LIST()
This represents implicit clause &#39;flush&#39; for the &#39;#pragma omp flush&#39; directive.
Defines the Objective-C statement AST node classes.
const DeclarationNameInfo & getNameInfo() const
Gets the name info for specified reduction identifier.
SpecifierKind getKind() const
Determine what kind of nested name specifier is stored.
A C++ throw-expression (C++ [except.throw]).
Definition: ExprCXX.h:1014
This represents &#39;reverse_offload&#39; clause in the &#39;#pragma omp requires&#39; directive. ...
Definition: OpenMPClause.h:806
Represents an expression – generally a full-expression – that introduces cleanups to be run at the ...
Definition: ExprCXX.h:3088
Represents a parameter to a function.
Definition: Decl.h:1549
Defines the clang::Expr interface and subclasses for C++ expressions.
SmallVectorImpl< llvm::PointerIntPair< Stmt *, 1, bool > > DataRecursionQueue
A queue used for performing data recursion over statements.
Expr * getGrainsize() const
Return safe iteration space distance.
This represents &#39;nogroup&#39; clause in the &#39;#pragma omp ...&#39; directive.
bool TraverseDecl(Decl *D)
Recursively visit a declaration, by dispatching to Traverse*Decl() based on the argument&#39;s dynamic ty...
Represents the builtin template declaration which is used to implement __make_integer_seq and other b...
This represents &#39;safelen&#39; clause in the &#39;#pragma omp ...&#39; directive.
Definition: OpenMPClause.h:446
PipeType - OpenCL20.
Definition: Type.h:6004
A C++ static_cast expression (C++ [expr.static.cast]).
Definition: ExprCXX.h:325
Base wrapper for a particular "section" of type source info.
Definition: TypeLoc.h:56
LabelStmt - Represents a label, which has a substatement.
Definition: Stmt.h:1592
Represents a struct/union/class.
Definition: Decl.h:3592
Represents a C99 designated initializer expression.
Definition: Expr.h:4425
This represents &#39;#pragma omp parallel&#39; directive.
Definition: StmtOpenMP.h:275
ShuffleVectorExpr - clang-specific builtin-in function __builtin_shufflevector.
Definition: Expr.h:3852
Represents a class type in Objective C.
Definition: Type.h:5540
Expr * getAsExpr() const
Retrieve the template argument as an expression.
Definition: TemplateBase.h:329
Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
Definition: ASTContext.h:154
A C++ nested-name-specifier augmented with source location information.
Represents a dependent template name that cannot be resolved prior to template instantiation.
Definition: TemplateName.h:422
This represents &#39;simd&#39; clause in the &#39;#pragma omp ...&#39; directive.
TypeSourceInfo * getTypeSourceInfo() const
Definition: TemplateBase.h:506
The template argument is an integral value stored in an llvm::APSInt that was provided for an integra...
Definition: TemplateBase.h:71
#define TYPE(CLASS, BASE)
NameKind getNameKind() const
Determine what kind of name this is.
Represents a member of a struct/union/class.
Definition: Decl.h:2578
const Type * getAsType() const
Retrieve the type stored in this nested name specifier.
This represents clause &#39;lastprivate&#39; in the &#39;#pragma omp ...&#39; directives.
TypeSourceInfo * getTypeSourceInfo() const
Returns the declarator information for a base class or delegating initializer.
Definition: DeclCXX.h:2385
Represents a place-holder for an object not to be initialized by anything.
Definition: Expr.h:4719
Expr * getChunkSize()
Get chunk size.
GNUNullExpr - Implements the GNU __null extension, which is a name for a null pointer constant that h...
Definition: Expr.h:4063
This represents clause &#39;map&#39; in the &#39;#pragma omp ...&#39; directives.
This represents clause &#39;to&#39; in the &#39;#pragma omp ...&#39; directives.
ParmVarDecl * getParam(unsigned i) const
Definition: TypeLoc.h:1407
This represents &#39;#pragma omp target simd&#39; directive.
Definition: StmtOpenMP.h:3383
Represents a C++ member access expression for which lookup produced a set of overloaded functions...
Definition: ExprCXX.h:3537
Defines some OpenMP-specific enums and functions.
ExtVectorElementExpr - This represents access to specific elements of a vector, and may occur on the ...
Definition: Expr.h:5122
Expr * getSafelen() const
Return safe iteration space distance.
Definition: OpenMPClause.h:480
bool TraverseSynOrSemInitListExpr(InitListExpr *S, DataRecursionQueue *Queue=nullptr)
Recursively visit the syntactic or semantic form of an initialization list.
This represents &#39;#pragma omp barrier&#39; directive.
Definition: StmtOpenMP.h:1882
Wrapper of type source information for a type with no direct qualifiers.
Definition: TypeLoc.h:244
Declaration of a function specialization at template class scope.
ObjCArrayLiteral - used for objective-c array containers; as in: @["Hello", NSApp, [NSNumber numberWithInt:42]];.
Definition: ExprObjC.h:170
This is a common base class for loop directives (&#39;omp simd&#39;, &#39;omp for&#39;, &#39;omp for simd&#39; etc...
Definition: StmtOpenMP.h:337
Expr * getNumTeams()
Return NumTeams number.
Represents a reference to a non-type template parameter pack that has been substituted with a non-tem...
Definition: ExprCXX.h:4013
This represents &#39;#pragma omp critical&#39; directive.
Definition: StmtOpenMP.h:1477
ArrayRef< ParmVarDecl * > parameters() const
Definition: Decl.h:2261
Represents Objective-C&#39;s @catch statement.
Definition: StmtObjC.h:73
#define TRY_TO(CALL_EXPR)
#define DEF_TRAVERSE_TMPL_DECL(TMPLDECLKIND)
Provides information about a function template specialization, which is a FunctionDecl that has been ...
Definition: DeclTemplate.h:507
Stmt::child_range getStmtChildren(Stmt *S)
This represents clause &#39;copyprivate&#39; in the &#39;#pragma omp ...&#39; directives.
IndirectGotoStmt - This represents an indirect goto.
Definition: Stmt.h:2338
Describes an C or C++ initializer list.
Definition: Expr.h:4191
A C++ typeid expression (C++ [expr.typeid]), which gets the type_info that corresponds to the supplie...
Definition: ExprCXX.h:668
Represents a C++ using-declaration.
Definition: DeclCXX.h:3351
This represents &#39;#pragma omp distribute parallel for&#39; composite directive.
Definition: StmtOpenMP.h:3098
This represents &#39;#pragma omp teams distribute parallel for simd&#39; composite directive.
Definition: StmtOpenMP.h:3587
ForStmt - This represents a &#39;for (init;cond;inc)&#39; stmt.
Definition: Stmt.h:2236
NestedNameSpecifierLoc getQualifierLoc() const
Gets the nested name specifier.
Stmt * getBody(const FunctionDecl *&Definition) const
Retrieve the body (definition) of the function.
Definition: Decl.cpp:2730
A convenient class for passing around template argument information.
Definition: TemplateBase.h:554
Forward-declares and imports various common LLVM datatypes that clang wants to use unqualified...
bool TraverseDeclarationNameInfo(DeclarationNameInfo NameInfo)
Recursively visit a name with its location information.
const Stmt * getPreInitStmt() const
Get pre-initialization statement for the clause.
Definition: OpenMPClause.h:120
child_range children()
Definition: Stmt.cpp:236
A builtin binary operation expression such as "x + y" or "x <= y".
Definition: Expr.h:3293
NestedNameSpecifierLoc getQualifierLoc() const
Retrieve the nested-name-specifier (with source-location information) that qualifies the name of this...
Definition: Decl.h:752
CXXForRangeStmt - This represents C++0x [stmt.ranged]&#39;s ranged for statement, represented as &#39;for (ra...
Definition: StmtCXX.h:126
bool isNull() const
Definition: TypeLoc.h:118
child_range children()
Definition: Expr.h:4374
Class that handles post-update expression for some clauses, like &#39;lastprivate&#39;, &#39;reduction&#39; etc...
Definition: OpenMPClause.h:134
const TemplateArgumentLoc * getArgumentArray() const
Definition: TemplateBase.h:578
This represents &#39;#pragma omp cancellation point&#39; directive.
Definition: StmtOpenMP.h:2717
FunctionTemplateSpecializationInfo * getTemplateSpecializationInfo() const
If this function is actually a function template specialization, retrieve information about this func...
Definition: Decl.cpp:3468
This represents &#39;default&#39; clause in the &#39;#pragma omp ...&#39; directive.
Definition: OpenMPClause.h:605
ObjCStringLiteral, used for Objective-C string literals i.e.
Definition: ExprObjC.h:50
spec_range specializations() const
CaseStmt - Represent a case statement.
Definition: Stmt.h:1393
TypoExpr - Internal placeholder for expressions where typo correction still needs to be performed and...
Definition: Expr.h:5568
This represents &#39;final&#39; clause in the &#39;#pragma omp ...&#39; directive.
Definition: OpenMPClause.h:329
This represents &#39;mergeable&#39; clause in the &#39;#pragma omp ...&#39; directive.
This represents &#39;#pragma omp teams&#39; directive.
Definition: StmtOpenMP.h:2660
This represents clause &#39;reduction&#39; in the &#39;#pragma omp ...&#39; directives.
This represents &#39;#pragma omp teams distribute simd&#39; combined directive.
Definition: StmtOpenMP.h:3517
Represents an Objective-C protocol declaration.
Definition: DeclObjC.h:2063
Represents binding an expression to a temporary.
Definition: ExprCXX.h:1216
A C++ lambda expression, which produces a function object (of unspecified type) that can be invoked l...
Definition: ExprCXX.h:1648
helper_expr_const_range source_exprs() const
Represents a C++ member access expression where the actual member referenced could not be resolved be...
Definition: ExprCXX.h:3283
This represents clause &#39;is_device_ptr&#39; in the &#39;#pragma omp ...&#39; directives.
A class that does preorder or postorder depth-first traversal on the entire Clang AST and visits each...
Represents an ObjC class declaration.
Definition: DeclObjC.h:1171
#define DEF_TRAVERSE_TMPL_PART_SPEC_DECL(TMPLDECLKIND, DECLKIND)
Represents a linkage specification.
Definition: DeclCXX.h:2825
bool isInitCapture(const LambdaCapture *Capture) const
Determine whether one of this lambda&#39;s captures is an init-capture.
Definition: ExprCXX.cpp:1152
A binding in a decomposition declaration.
Definition: DeclCXX.h:3794
helper_expr_const_range source_exprs() const
A default argument (C++ [dcl.fct.default]).
Definition: ExprCXX.h:1072
helper_expr_const_range privates() const
This represents clause &#39;from&#39; in the &#39;#pragma omp ...&#39; directives.
Represents the this expression in C++.
Definition: ExprCXX.h:975
ObjCPropertyImplDecl - Represents implementation declaration of a property in a class or category imp...
Definition: DeclObjC.h:2758
helper_expr_const_range reduction_ops() const
This represents &#39;#pragma omp target parallel for simd&#39; directive.
Definition: StmtOpenMP.h:3315
OpenMP 4.0 [2.4, Array Sections].
Definition: ExprOpenMP.h:44
This represents &#39;dynamic_allocators&#39; clause in the &#39;#pragma omp requires&#39; directive.
Definition: OpenMPClause.h:837
ConditionalOperator - The ?: ternary operator.
Definition: Expr.h:3588
#define CAO_LIST()
Represents a C++ pseudo-destructor (C++ [expr.pseudo]).
Definition: ExprCXX.h:2285
Represents the declaration of a typedef-name via a C++11 alias-declaration.
Definition: Decl.h:3037
CompoundStmt - This represents a group of statements like { stmt stmt }.
Definition: Stmt.h:1240
This represents &#39;threads&#39; clause in the &#39;#pragma omp ...&#39; directive.
helper_expr_const_range destination_exprs() const
This represents &#39;#pragma omp taskgroup&#39; directive.
Definition: StmtOpenMP.h:1970
Expr * getSimdlen() const
Return safe iteration space distance.
Definition: OpenMPClause.h:534
helper_expr_const_range source_exprs() const
TemplateSpecializationKind getTemplateSpecializationKind() const
Determine whether this particular class is a specialization or instantiation of a class template or m...
Definition: DeclCXX.cpp:1626
Represents a ValueDecl that came out of a declarator.
Definition: Decl.h:688
This represents clause &#39;aligned&#39; in the &#39;#pragma omp ...&#39; directives.
OpenMPClauseKind getClauseKind() const
Returns kind of OpenMP clause (private, shared, reduction, etc.).
Definition: OpenMPClause.h:78
UnaryExprOrTypeTraitExpr - expression with either a type or (unevaluated) expression operand...
Definition: Expr.h:2228
helper_expr_const_range private_copies() const
This represents clause &#39;task_reduction&#39; in the &#39;#pragma omp taskgroup&#39; directives.
ConstantExpr - An expression that occurs in a constant context.
Definition: Expr.h:910
Represents a call to the builtin function __builtin_va_arg.
Definition: Expr.h:4097
helper_expr_const_range destination_exprs() const
spec_range specializations() const
This represents &#39;#pragma omp requires...&#39; directive.
Definition: DeclOpenMP.h:249
This represents &#39;#pragma omp distribute&#39; directive.
Definition: StmtOpenMP.h:2971
This represents implicit clause &#39;depend&#39; for the &#39;#pragma omp task&#39; directive.
DEF_TRAVERSE_TYPELOC(ComplexType, { TRY_TO(TraverseType(TL.getTypePtr() ->getElementType()));}) DEF_TRAVERSE_TYPELOC(PointerType
TemplateParameterList * getTemplateParameters() const
Get the list of template parameters.
Definition: DeclTemplate.h:431
An expression "T()" which creates a value-initialized rvalue of type T, which is a non-class type...
Definition: ExprCXX.h:1870
Represents a shadow constructor declaration introduced into a class by a C++11 using-declaration that...
Definition: DeclCXX.h:3239
This represents &#39;proc_bind&#39; clause in the &#39;#pragma omp ...&#39; directive.
Definition: OpenMPClause.h:674
This represents &#39;capture&#39; clause in the &#39;#pragma omp atomic&#39; directive.
This represents one expression.
Definition: Expr.h:106
bool TraverseConstructorInitializer(CXXCtorInitializer *Init)
Recursively visit a constructor initializer.
This represents &#39;simdlen&#39; clause in the &#39;#pragma omp ...&#39; directive.
Definition: OpenMPClause.h:500
Declaration of a template type parameter.
Expr * getNumTasks() const
Return safe iteration space distance.
UnqualTypeLoc getUnqualifiedLoc() const
Skips past any qualifiers, if this is qualified.
Definition: TypeLoc.h:319
Represents a C++ functional cast expression that builds a temporary object.
Definition: ExprCXX.h:1580
The template argument is a null pointer or null pointer to member that was provided for a non-type te...
Definition: TemplateBase.h:67
A C++ const_cast expression (C++ [expr.const.cast]).
Definition: ExprCXX.h:443
BlockExpr - Adaptor class for mixing a BlockDecl with expressions.
Definition: Expr.h:5183
Represents a C++ destructor within a class.
Definition: DeclCXX.h:2705
bool isThisDeclarationADefinition() const
Returns whether this specific declaration of the function is also a definition that does not contain ...
Definition: Decl.h:1982
bool WalkUpFromQualifiedTypeLoc(QualifiedTypeLoc TL)
bool canIgnoreChildDeclWhileTraversingDeclContext(const Decl *Child)
bool isImplicit() const
isImplicit - Indicates whether the declaration was implicitly generated by the implementation.
Definition: DeclBase.h:546
This represents &#39;#pragma omp target teams distribute parallel for simd&#39; combined directive.
Definition: StmtOpenMP.h:3947
ObjCDictionaryLiteral - AST node to represent objective-c dictionary literals; as in:"name" : NSUserN...
Definition: ExprObjC.h:287
Represents Objective-C&#39;s @synchronized statement.
Definition: StmtObjC.h:261
ObjCSelectorExpr used for @selector in Objective-C.
Definition: ExprObjC.h:428
TypeSourceInfo * getNamedTypeInfo() const
getNamedTypeInfo - Returns the source type info associated to the name.
NestedNameSpecifierLoc getPrefix() const
Return the prefix of this nested-name-specifier.
Represents an expression that computes the length of a parameter pack.
Definition: ExprCXX.h:3843
CXXTryStmt - A C++ try block, including all handlers.
Definition: StmtCXX.h:64
AsTypeExpr - Clang builtin function __builtin_astype [OpenCL 6.2.4.2] This AST node provides support ...
Definition: Expr.h:5232
bool VisitQualifiedTypeLoc(QualifiedTypeLoc TL)
NonTypeTemplateParmDecl - Declares a non-type template parameter, e.g., "Size" in.
Represents a C++ template name within the type system.
Definition: TemplateName.h:178
This represents &#39;#pragma omp target teams distribute simd&#39; combined directive.
Definition: StmtOpenMP.h:4020
helper_expr_const_range rhs_exprs() const
Defines the clang::TypeLoc interface and its subclasses.
A namespace alias, stored as a NamespaceAliasDecl*.
This represents &#39;ordered&#39; clause in the &#39;#pragma omp ...&#39; directive.
bool TraverseAST(ASTContext &AST)
Recursively visits an entire AST, starting from the top-level Decls in the AST traversal scope (by de...
This represents &#39;#pragma omp for&#39; directive.
Definition: StmtOpenMP.h:1103
Declaration of an alias template.
Represents a folding of a pack over an operator.
Definition: ExprCXX.h:4265
ReturnStmt - This represents a return, optionally of an expression: return; return 4;...
Definition: Stmt.h:2442
This represents &#39;#pragma omp target teams&#39; directive.
Definition: StmtOpenMP.h:3736
An expression that sends a message to the given Objective-C object or class.
Definition: ExprObjC.h:903
This represents a Microsoft inline-assembly statement extension.
Definition: Stmt.h:2849
UnaryOperator - This represents the unary-expression&#39;s (except sizeof and alignof), the postinc/postdec operators from postfix-expression, and various extensions.
Definition: Expr.h:1902
A member reference to an MSPropertyDecl.
Definition: ExprCXX.h:758
TemplateTemplateParmDecl - Declares a template template parameter, e.g., "T" in.
Represents a reference to a non-type template parameter that has been substituted with a template arg...
Definition: ExprCXX.h:3957
Expr * getDevice()
Return device number.
This represents &#39;#pragma omp cancel&#39; directive.
Definition: StmtOpenMP.h:2775
This represents &#39;collapse&#39; clause in the &#39;#pragma omp ...&#39; directive.
Definition: OpenMPClause.h:554
This represents clause &#39;firstprivate&#39; in the &#39;#pragma omp ...&#39; directives.
Represents a C++ deduction guide declaration.
Definition: DeclCXX.h:1987
Represents a C++ conversion function within a class.
Definition: DeclCXX.h:2767
This template specialization was implicitly instantiated from a template.
Definition: Specifiers.h:151
CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style cast in C++ (C++ [expr.cast]), which uses the syntax (Type)expr.
Definition: Expr.h:3230
bool isNull() const
Return true if this QualType doesn&#39;t point to a type yet.
Definition: Type.h:702
T getAsAdjusted() const
Convert to the specified TypeLoc type, returning a null TypeLoc if this TypeLoc is not of the desired...
Definition: TypeLoc.h:2281
TypeLoc getReturnLoc() const
Definition: TypeLoc.h:1410
This file defines OpenMP AST classes for clauses.
ImaginaryLiteral - We support imaginary integer and floating point literals, like "1...
Definition: Expr.h:1523
This represents &#39;#pragma omp flush&#39; directive.
Definition: StmtOpenMP.h:2043
This represents &#39;#pragma omp parallel for simd&#39; directive.
Definition: StmtOpenMP.h:1631
DoStmt - This represents a &#39;do/while&#39; stmt.
Definition: Stmt.h:2184
This represents &#39;seq_cst&#39; clause in the &#39;#pragma omp atomic&#39; directive.
helper_expr_const_range assignment_ops() const
This represents &#39;untied&#39; clause in the &#39;#pragma omp ...&#39; directive.
This represents &#39;unified_address&#39; clause in the &#39;#pragma omp requires&#39; directive. ...
Definition: OpenMPClause.h:744
This represents &#39;#pragma omp target enter data&#39; directive.
Definition: StmtOpenMP.h:2403
Represents a C++ Modules TS module export declaration.
Definition: Decl.h:4213
bool WalkUpFromUnqualTypeLoc(UnqualTypeLoc TL)
This represents &#39;num_teams&#39; clause in the &#39;#pragma omp ...&#39; directive.
A C++ dynamic_cast expression (C++ [expr.dynamic.cast]).
Definition: ExprCXX.h:361
OpaqueValueExpr - An expression referring to an opaque object of a fixed type and value class...
Definition: Expr.h:951
ConvertVectorExpr - Clang builtin function __builtin_convertvector This AST node provides support for...
Definition: Expr.h:3920
This captures a statement into a function.
Definition: Stmt.h:3104
Represents a call to an inherited base class constructor from an inheriting constructor.
Definition: ExprCXX.h:1447
PseudoObjectExpr - An expression which accesses a pseudo-object l-value.
Definition: Expr.h:5305
bool shouldVisitTemplateInstantiations() const
Return whether this visitor should recurse into template instantiations.
helper_expr_const_range taskgroup_descriptors() const
This represents &#39;#pragma omp single&#39; directive.
Definition: StmtOpenMP.h:1375
FunctionDecl * getTemplatedDecl() const
Get the underlying function declaration of the template.
Sugar for parentheses used when specifying types.
Definition: Type.h:2509
This represents &#39;hint&#39; clause in the &#39;#pragma omp ...&#39; directive.
This represents &#39;#pragma omp declare reduction ...&#39; directive.
Definition: DeclOpenMP.h:102
Pseudo declaration for capturing expressions.
Definition: DeclOpenMP.h:216
Interfaces are the core concept in Objective-C for object oriented design.
Definition: Type.h:5740
bool TraverseTypeLoc(TypeLoc TL)
Recursively visit a type with location, by dispatching to Traverse*TypeLoc() based on the argument ty...
This is a basic class for representing single OpenMP executable directive.
Definition: StmtOpenMP.h:32
private_copies_range private_copies()
Represents a new-expression for memory allocation and constructor calls, e.g: "new CXXNewExpr(foo)"...
Definition: ExprCXX.h:1913
A call to a literal operator (C++11 [over.literal]) written as a user-defined literal (C++11 [lit...
Definition: ExprCXX.h:480
DeclarationName getName() const
getName - Returns the embedded declaration name.
This represents &#39;schedule&#39; clause in the &#39;#pragma omp ...&#39; directive.
Definition: OpenMPClause.h:947
Represents a call to a member function that may be written either with member call syntax (e...
Definition: ExprCXX.h:170
DeclStmt - Adaptor class for mixing declarations with statements and expressions. ...
Definition: Stmt.h:1142
Represents the declaration of a label.
Definition: Decl.h:468
This represents clause &#39;shared&#39; in the &#39;#pragma omp ...&#39; directives.
Represents a dependent using declaration which was not marked with typename.
Definition: DeclCXX.h:3570
bool TraverseNestedNameSpecifierLoc(NestedNameSpecifierLoc NNS)
Recursively visit a C++ nested-name-specifier with location information.
Represents a static or instance method of a struct/union/class.
Definition: DeclCXX.h:2040
Expr * getPriority()
Return Priority number.
Represents a C++ nested name specifier, such as "\::std::vector<int>::".
This represents &#39;#pragma omp taskwait&#39; directive.
Definition: StmtOpenMP.h:1926
This file defines OpenMP nodes for declarative directives.
ObjCCategoryDecl - Represents a category declaration.
Definition: DeclObjC.h:2279
unsigned pack_size() const
The number of template arguments in the given template argument pack.
Definition: TemplateBase.h:359
This is a basic class for representing single OpenMP clause.
Definition: OpenMPClause.h:50
AtomicExpr - Variadic atomic builtins: __atomic_exchange, __atomic_fetch_*, __atomic_load, __atomic_store, and __atomic_compare_exchange_*, for the similarly-named C++11 instructions, and __c11 variants for <stdatomic.h>, and corresponding __opencl_atomic_* for OpenCL 2.0.
Definition: Expr.h:5439
ObjCProtocolExpr used for protocol expression in Objective-C.
Definition: ExprObjC.h:473
bool TraverseStmt(Stmt *S, DataRecursionQueue *Queue=nullptr)
Recursively visit a statement or expression, by dispatching to Traverse*() based on the argument&#39;s dy...
Represents one property declaration in an Objective-C interface.
Definition: DeclObjC.h:728
ImplicitCastExpr - Allows us to explicitly represent implicit type conversions, which have no direct ...
Definition: Expr.h:3121
This represents &#39;#pragma omp target&#39; directive.
Definition: StmtOpenMP.h:2287
Expr * getNumForLoops() const
Return the number of associated for-loops.
Definition: OpenMPClause.h:589
TypeClass getTypeClass() const
Definition: Type.h:1810
This template specialization was instantiated from a template due to an explicit instantiation defini...
Definition: Specifiers.h:163
This template specialization was formed from a template-id but has not yet been declared, defined, or instantiated.
Definition: Specifiers.h:148
bool isExplicit() const
Determine whether this was an explicit capture (written between the square brackets introducing the l...
An expression trait intrinsic.
Definition: ExprCXX.h:2579
DeclarationNameInfo getNameInfo() const
Definition: Decl.h:1900
Represents a C++11 static_assert declaration.
Definition: DeclCXX.h:3745
This represents &#39;#pragma omp ordered&#39; directive.
Definition: StmtOpenMP.h:2098
StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}).
Definition: Expr.h:3807
This represents &#39;#pragma omp target update&#39; directive.
Definition: StmtOpenMP.h:3039
ObjCBoxedExpr - used for generalized expression boxing.
Definition: ExprObjC.h:116
bool TraverseType(QualType T)
Recursively visit a type, by dispatching to Traverse*Type() based on the argument&#39;s getTypeClass() pr...
TypeSourceInfo * getTypeSourceInfo() const
Retrieves the type and source location of the base class.
Definition: DeclCXX.h:295
std::vector< Decl * > getTraversalScope() const
Definition: ASTContext.h:620
helper_expr_const_range lhs_exprs() const
DependentTemplateName * getAsDependentTemplateName() const
Retrieve the underlying dependent template name structure, if any.
Representation of a Microsoft __if_exists or __if_not_exists statement with a dependent name...
Definition: StmtCXX.h:240
bool TraverseLambdaCapture(LambdaExpr *LE, const LambdaCapture *C, Expr *Init)
Recursively visit a lambda capture.
Describes a module import declaration, which makes the contents of the named module visible in the cu...
Definition: Decl.h:4148
The injected class name of a C++ class template or class template partial specialization.
Definition: Type.h:4980
A qualified reference to a name whose declaration cannot yet be resolved.
Definition: ExprCXX.h:2941
Represents a pack expansion of types.
Definition: Type.h:5357
CompoundAssignOperator - For compound assignments (e.g.
Definition: Expr.h:3510
Defines various enumerations that describe declaration and type specifiers.
Represents a C11 generic selection.
Definition: Expr.h:5016
NestedNameSpecifierLoc getQualifierLoc() const
Retrieve the nested-name-specifier (with source-location information) that qualifies the name of this...
Definition: Decl.h:3290
bool shouldVisitImplicitCode() const
Return whether this visitor should recurse into implicit code, e.g., implicit constructors and destru...
AddrLabelExpr - The GNU address of label extension, representing &&label.
Definition: Expr.h:3763
An Objective-C "bridged" cast expression, which casts between Objective-C pointers and C pointers...
Definition: ExprObjC.h:1574
ast_type_traits::DynTypedNode Node
Represents a reference to a function parameter pack that has been substituted but not yet expanded...
Definition: ExprCXX.h:4077
Represents a template argument.
Definition: TemplateBase.h:50
Represents a template name that was expressed as a qualified name.
Definition: TemplateName.h:366
NullStmt - This is the null statement ";": C99 6.8.3p3.
Definition: Stmt.h:1209
Dataflow Directional Tag Classes.
This represents &#39;device&#39; clause in the &#39;#pragma omp ...&#39; directive.
NestedNameSpecifier * getNestedNameSpecifier() const
Retrieve the nested-name-specifier to which this instance refers.
const TemplateArgument & getArgument() const
Definition: TemplateBase.h:498
[C99 6.4.2.2] - A predefined identifier such as func.
Definition: Expr.h:1764
DeclContext - This is used only as base class of specific decl types that can act as declaration cont...
Definition: DeclBase.h:1261
Represents a delete expression for memory deallocation and destructor calls, e.g. ...
Definition: ExprCXX.h:2169
helper_expr_const_range privates() const
The template argument is a pack expansion of a template name that was provided for a template templat...
Definition: TemplateBase.h:79
attr_range attrs() const
Definition: DeclBase.h:489
This represents &#39;#pragma omp section&#39; directive.
Definition: StmtOpenMP.h:1313
This represents &#39;#pragma omp teams distribute&#39; directive.
Definition: StmtOpenMP.h:3449
#define DEF_TRAVERSE_TMPL_INST(TMPLDECLKIND)
Represents a field injected from an anonymous union/struct into the parent scope. ...
Definition: Decl.h:2824
Expr * getSourceExpression() const
Definition: TemplateBase.h:511
const Expr * getInit() const
Definition: Decl.h:1219
A runtime availability query.
Definition: ExprObjC.h:1635
A decomposition declaration.
Definition: DeclCXX.h:3842
This template specialization was instantiated from a template due to an explicit instantiation declar...
Definition: Specifiers.h:159
A C++ reinterpret_cast expression (C++ [expr.reinterpret.cast]).
Definition: ExprCXX.h:403
This represents &#39;#pragma omp simd&#39; directive.
Definition: StmtOpenMP.h:1038
Represents a &#39;co_yield&#39; expression.
Definition: ExprCXX.h:4501
Represents a dependent using declaration which was marked with typename.
Definition: DeclCXX.h:3666
Represents the declaration of an Objective-C type parameter.
Definition: DeclObjC.h:558
Kind getKind() const
Definition: DeclBase.h:420
Represents a C++11 pack expansion that produces a sequence of expressions.
Definition: ExprCXX.h:3771
This represents &#39;unified_shared_memory&#39; clause in the &#39;#pragma omp requires&#39; directive.
Definition: OpenMPClause.h:775
This represents clause &#39;linear&#39; in the &#39;#pragma omp ...&#39; directives.
Represents an enum.
Definition: Decl.h:3325
DeclarationNameInfo - A collector data type for bundling together a DeclarationName and the correspnd...
This represents &#39;#pragma omp atomic&#39; directive.
Definition: StmtOpenMP.h:2153
A type that was preceded by the &#39;template&#39; keyword, stored as a Type*.
pack_iterator pack_begin() const
Iterator referencing the first argument of a template argument pack.
Definition: TemplateBase.h:339
Represents a __leave statement.
Definition: Stmt.h:3069
unsigned getNumParams() const
Definition: TypeLoc.h:1401
Represents a pointer to an Objective C object.
Definition: Type.h:5796
helper_expr_const_range privates() const
Represents a C++11 noexcept expression (C++ [expr.unary.noexcept]).
Definition: ExprCXX.h:3718
SwitchStmt - This represents a &#39;switch&#39; stmt.
Definition: Stmt.h:1885
ObjCImplementationDecl - Represents a class definition - this is where method definitions are specifi...
Definition: DeclObjC.h:2551
Represents the body of a coroutine.
Definition: StmtCXX.h:301
Location wrapper for a TemplateArgument.
Definition: TemplateBase.h:449
ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting.
Definition: Expr.h:2318
This file defines OpenMP AST classes for executable directives and clauses.
Represents Objective-C&#39;s collection statement.
Definition: StmtObjC.h:23
bool TraverseTemplateArgument(const TemplateArgument &Arg)
Recursively visit a template argument and dispatch to the appropriate method for the argument type...
Represents a C++ base or member initializer.
Definition: DeclCXX.h:2255
This template specialization was declared or defined by an explicit specialization (C++ [temp...
Definition: Specifiers.h:155
ObjCEncodeExpr, used for @encode in Objective-C.
Definition: ExprObjC.h:385
helper_expr_const_range destination_exprs() const
Represents a call to a CUDA kernel function.
Definition: ExprCXX.h:218
Represents a &#39;co_await&#39; expression.
Definition: ExprCXX.h:4418
TypeSourceInfo * getTypeSourceInfo() const
Definition: Decl.h:715
TypeLocClass getTypeLocClass() const
Definition: TypeLoc.h:113
Represents Objective-C&#39;s @finally statement.
Definition: StmtObjC.h:119
The template argument is a type.
Definition: TemplateBase.h:59
bool TraverseNestedNameSpecifier(NestedNameSpecifier *NNS)
Recursively visit a C++ nested-name-specifier.
The template argument is actually a parameter pack.
Definition: TemplateBase.h:90
const DeclarationNameInfo & getNameInfo() const
Gets the name info for specified reduction identifier.
Represents a base class of a C++ class.
Definition: DeclCXX.h:191
This represents &#39;write&#39; clause in the &#39;#pragma omp atomic&#39; directive.
ObjCIvarRefExpr - A reference to an ObjC instance variable.
Definition: ExprObjC.h:512
UnqualTypeLoc getUnqualifiedLoc() const
Definition: TypeLoc.h:274
Describes an explicit type conversion that uses functional notion but could not be resolved because o...
Definition: ExprCXX.h:3168
GotoStmt - This represents a direct goto.
Definition: Stmt.h:2303
A use of a default initializer in a constructor or in aggregate initialization.
Definition: ExprCXX.h:1136
TypeLoc getTypeLoc() const
Return the TypeLoc wrapper for the type source info.
Definition: TypeLoc.h:237
ArgKind getKind() const
Return the kind of stored template argument.
Definition: TemplateBase.h:234
An attributed type is a type to which a type attribute has been applied.
Definition: Type.h:4427
Defines the C++ Decl subclasses, other than those for templates (found in DeclTemplate.h) and friends (in DeclFriend.h).
TemplateDecl * getCXXDeductionGuideTemplate() const
If this name is the name of a C++ deduction guide, return the template associated with that name...
const DeclarationNameInfo & getNameInfo() const
Gets the name info for specified reduction identifier.
Represents a type parameter type in Objective C.
Definition: Type.h:5466
Represents a field declaration created by an @defs(...).
Definition: DeclObjC.h:2011
MemberExpr - [C99 6.5.2.3] Structure and Union Members.
Definition: Expr.h:2688
This represents &#39;#pragma omp target parallel&#39; directive.
Definition: StmtOpenMP.h:2520
This represents &#39;nowait&#39; clause in the &#39;#pragma omp ...&#39; directive.
Represents a C++ struct/union/class.
Definition: DeclCXX.h:299
Represents a template specialization type whose template cannot be resolved, e.g. ...
Definition: Type.h:5266
ContinueStmt - This represents a continue.
Definition: Stmt.h:2383
Represents a loop initializing the elements of an array.
Definition: Expr.h:4809
This represents &#39;num_tasks&#39; clause in the &#39;#pragma omp ...&#39; directive.
The template argument is a template name that was provided for a template template parameter...
Definition: TemplateBase.h:75
ChooseExpr - GNU builtin-in function __builtin_choose_expr.
Definition: Expr.h:3983
BinaryConditionalOperator - The GNU extension to the conditional operator which allows the middle ope...
Definition: Expr.h:3661
CXXCatchStmt - This represents a C++ catch block.
Definition: StmtCXX.h:28
Represents an explicit C++ type conversion that uses "functional" notation (C++ [expr.type.conv]).
Definition: ExprCXX.h:1518
bool dataTraverseStmtPost(Stmt *S)
Invoked after visiting a statement or expression via data recursion.
The parameter type of a method or function.
ObjCIvarDecl - Represents an ObjC instance variable.
Definition: DeclObjC.h:1944
WhileStmt - This represents a &#39;while&#39; stmt.
Definition: Stmt.h:2062
helper_expr_const_range reduction_ops() const
Declaration of a class template.
Expr * getThreadLimit()
Return ThreadLimit number.
Stores a list of Objective-C type parameters for a parameterized class or a category/extension thereo...
Definition: DeclObjC.h:636
TypeLoc getTypeLoc() const
For a nested-name-specifier that refers to a type, retrieve the type with source-location information...
Represents Objective-C&#39;s @try ... @catch ... @finally statement.
Definition: StmtObjC.h:153
This represents &#39;#pragma omp taskloop simd&#39; directive.
Definition: StmtOpenMP.h:2905
StringLiteral - This represents a string literal expression, e.g.
Definition: Expr.h:1572
CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]).
Definition: Expr.h:2402
bool TraverseTemplateArguments(const TemplateArgument *Args, unsigned NumArgs)
Recursively visit a set of template arguments.
#define DEF_TRAVERSE_STMT(STMT, CODE)
This represents &#39;dist_schedule&#39; clause in the &#39;#pragma omp ...&#39; directive.
This represents &#39;#pragma omp sections&#39; directive.
Definition: StmtOpenMP.h:1245
Expr * getHint() const
Returns number of threads.
NestedNameSpecifierLoc getQualifierLoc() const
Gets the nested name specifier.
ObjCBoolLiteralExpr - Objective-C Boolean Literal.
Definition: ExprObjC.h:81
The top declaration context.
Definition: Decl.h:107
This represents &#39;#pragma omp target data&#39; directive.
Definition: StmtOpenMP.h:2345
QualType getAsType() const
Retrieve the type for a type template argument.
Definition: TemplateBase.h:256
A reference to a declared variable, function, enum, etc.
Definition: Expr.h:1047
NestedNameSpecifierLoc getQualifierLoc() const
Gets the nested name specifier.
BreakStmt - This represents a break.
Definition: Stmt.h:2409
Expr * getChunkSize()
Get chunk size.
Expr * getNumThreads() const
Returns number of threads.
Definition: OpenMPClause.h:425
An instance of this class represents the declaration of a property member.
Definition: DeclCXX.h:3911
QualType getType() const
Definition: Decl.h:647
bool TraverseAttr(Attr *At)
Recursively visit an attribute, by dispatching to Traverse*Attr() based on the argument&#39;s dynamic typ...
This represents &#39;#pragma omp taskyield&#39; directive.
Definition: StmtOpenMP.h:1838
This represents a decl that may have a name.
Definition: Decl.h:248
This represents &#39;#pragma omp distribute parallel for simd&#39; composite directive.
Definition: StmtOpenMP.h:3178
A boolean literal, per ([C++ lex.bool] Boolean literals).
Definition: ExprCXX.h:561
OffsetOfExpr - [C99 7.17] - This represents an expression of the form offsetof(record-type, member-designator).
Definition: Expr.h:2123
This represents &#39;#pragma omp parallel sections&#39; directive.
Definition: StmtOpenMP.h:1699
Represents a C++ namespace alias.
Definition: DeclCXX.h:3019
A Microsoft C++ __uuidof expression, which gets the _GUID that corresponds to the supplied type or ex...
Definition: ExprCXX.h:886
bool VisitUnqualTypeLoc(UnqualTypeLoc TL)
Declaration of a friend template.
Represents C++ using-directive.
Definition: DeclCXX.h:2915
Represents a #pragma detect_mismatch line.
Definition: Decl.h:173
const Expr * getPostUpdateExpr() const
Get post-update expression for the clause.
Definition: OpenMPClause.h:150
The global specifier &#39;::&#39;. There is no stored value.
TemplateName getAsTemplateOrTemplatePattern() const
Retrieve the template argument as a template name; if the argument is a pack expansion, return the pattern as a template name.
Definition: TemplateBase.h:287
Represents Objective-C&#39;s @autoreleasepool Statement.
Definition: StmtObjC.h:344
This represents &#39;#pragma omp threadprivate ...&#39; directive.
Definition: DeclOpenMP.h:39
ObjCCategoryImplDecl - An object of this class encapsulates a category @implementation declaration...
Definition: DeclObjC.h:2498
InitListExpr * getSyntacticForm() const
Definition: Expr.h:4348
Declaration of a template function.
Definition: DeclTemplate.h:968
Represents an implicitly-generated value initialization of an object of a given type.
Definition: Expr.h:4899
bool TraverseTemplateArgumentLoc(const TemplateArgumentLoc &ArgLoc)
Recursively visit a template argument location and dispatch to the appropriate method for the argumen...
This represents &#39;#pragma omp target parallel for&#39; directive.
Definition: StmtOpenMP.h:2580
Attr - This represents one attribute.
Definition: Attr.h:43
This represents clause &#39;use_device_ptr&#39; in the &#39;#pragma omp ...&#39; directives.
Represents a shadow declaration introduced into a scope by a (resolved) using declaration.
Definition: DeclCXX.h:3138
Represents a pack of using declarations that a single using-declarator pack-expanded into...
Definition: DeclCXX.h:3501
InitListExpr * getSemanticForm() const
Definition: Expr.h:4342
Defines the LambdaCapture class.
ObjCCompatibleAliasDecl - Represents alias of a class.
Definition: DeclObjC.h:2728
#define STMT(CLASS, PARENT)
This represents &#39;#pragma omp taskloop&#39; directive.
Definition: StmtOpenMP.h:2840