clang 8.0.0

Expr.h
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1 //===--- Expr.h - Classes for representing expressions ----------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file defines the Expr interface and subclasses.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #ifndef LLVM_CLANG_AST_EXPR_H
15 #define LLVM_CLANG_AST_EXPR_H
16
17 #include "clang/AST/APValue.h"
18 #include "clang/AST/ASTVector.h"
19 #include "clang/AST/Decl.h"
20 #include "clang/AST/DeclAccessPair.h"
21 #include "clang/AST/OperationKinds.h"
22 #include "clang/AST/Stmt.h"
23 #include "clang/AST/TemplateBase.h"
24 #include "clang/AST/Type.h"
25 #include "clang/Basic/CharInfo.h"
26 #include "clang/Basic/LangOptions.h"
27 #include "clang/Basic/SyncScope.h"
28 #include "clang/Basic/TypeTraits.h"
29 #include "llvm/ADT/APFloat.h"
30 #include "llvm/ADT/APSInt.h"
31 #include "llvm/ADT/SmallVector.h"
32 #include "llvm/ADT/StringRef.h"
33 #include "llvm/Support/AtomicOrdering.h"
34 #include "llvm/Support/Compiler.h"
35 #include "llvm/Support/TrailingObjects.h"
36
37 namespace clang {
38 class APValue;
39 class ASTContext;
40 class BlockDecl;
41 class CXXBaseSpecifier;
42 class CXXMemberCallExpr;
43 class CXXOperatorCallExpr;
44 class CastExpr;
45 class Decl;
46 class IdentifierInfo;
47 class MaterializeTemporaryExpr;
48 class NamedDecl;
49 class ObjCPropertyRefExpr;
50 class OpaqueValueExpr;
51 class ParmVarDecl;
52 class StringLiteral;
53 class TargetInfo;
54 class ValueDecl;
55
56 /// A simple array of base specifiers.
57 typedef SmallVector<CXXBaseSpecifier*, 4> CXXCastPath;
58
59 /// An adjustment to be made to the temporary created when emitting a
60 /// reference binding, which accesses a particular subobject of that temporary.
61 struct SubobjectAdjustment {
62 enum {
63 DerivedToBaseAdjustment,
64 FieldAdjustment,
65 MemberPointerAdjustment
66 } Kind;
67
68 struct DTB {
69 const CastExpr *BasePath;
70 const CXXRecordDecl *DerivedClass;
71 };
72
73 struct P {
74 const MemberPointerType *MPT;
75 Expr *RHS;
76 };
77
78 union {
79 struct DTB DerivedToBase;
80 FieldDecl *Field;
81 struct P Ptr;
82 };
83
84 SubobjectAdjustment(const CastExpr *BasePath,
85 const CXXRecordDecl *DerivedClass)
86 : Kind(DerivedToBaseAdjustment) {
87 DerivedToBase.BasePath = BasePath;
88 DerivedToBase.DerivedClass = DerivedClass;
89 }
90
91 SubobjectAdjustment(FieldDecl *Field)
92 : Kind(FieldAdjustment) {
93 this->Field = Field;
94 }
95
96 SubobjectAdjustment(const MemberPointerType *MPT, Expr *RHS)
97 : Kind(MemberPointerAdjustment) {
98 this->Ptr.MPT = MPT;
99 this->Ptr.RHS = RHS;
100 }
101 };
102
103 /// This represents one expression. Note that Expr's are subclasses of Stmt.
104 /// This allows an expression to be transparently used any place a Stmt is
105 /// required.
106 class Expr : public Stmt {
107 QualType TR;
108
109 protected:
110 Expr(StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK,
111 bool TD, bool VD, bool ID, bool ContainsUnexpandedParameterPack)
112 : Stmt(SC)
113 {
114 ExprBits.TypeDependent = TD;
115 ExprBits.ValueDependent = VD;
116 ExprBits.InstantiationDependent = ID;
117 ExprBits.ValueKind = VK;
118 ExprBits.ObjectKind = OK;
119 assert(ExprBits.ObjectKind == OK && "truncated kind");
120 ExprBits.ContainsUnexpandedParameterPack = ContainsUnexpandedParameterPack;
121 setType(T);
122 }
123
124 /// Construct an empty expression.
125 explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { }
126
127 public:
128 QualType getType() const { return TR; }
129 void setType(QualType t) {
130 // In C++, the type of an expression is always adjusted so that it
131 // will not have reference type (C++ [expr]p6). Use
132 // QualType::getNonReferenceType() to retrieve the non-reference
133 // type. Additionally, inspect Expr::isLvalue to determine whether
134 // an expression that is adjusted in this manner should be
135 // considered an lvalue.
136 assert((t.isNull() || !t->isReferenceType()) &&
137 "Expressions can't have reference type");
138
139 TR = t;
140 }
141
142 /// isValueDependent - Determines whether this expression is
143 /// value-dependent (C++ [temp.dep.constexpr]). For example, the
144 /// array bound of "Chars" in the following example is
145 /// value-dependent.
146 /// @code
147 /// template<int Size, char (&Chars)[Size]> struct meta_string;
148 /// @endcode
149 bool isValueDependent() const { return ExprBits.ValueDependent; }
150
151 /// Set whether this expression is value-dependent or not.
152 void setValueDependent(bool VD) {
153 ExprBits.ValueDependent = VD;
154 }
155
156 /// isTypeDependent - Determines whether this expression is
157 /// type-dependent (C++ [temp.dep.expr]), which means that its type
158 /// could change from one template instantiation to the next. For
159 /// example, the expressions "x" and "x + y" are type-dependent in
160 /// the following code, but "y" is not type-dependent:
161 /// @code
162 /// template<typename T>
163 /// void add(T x, int y) {
164 /// x + y;
165 /// }
166 /// @endcode
167 bool isTypeDependent() const { return ExprBits.TypeDependent; }
168
169 /// Set whether this expression is type-dependent or not.
170 void setTypeDependent(bool TD) {
171 ExprBits.TypeDependent = TD;
172 }
173
174 /// Whether this expression is instantiation-dependent, meaning that
175 /// it depends in some way on a template parameter, even if neither its type
176 /// nor (constant) value can change due to the template instantiation.
177 ///
178 /// In the following example, the expression \c sizeof(sizeof(T() + T())) is
179 /// instantiation-dependent (since it involves a template parameter \c T), but
180 /// is neither type- nor value-dependent, since the type of the inner
181 /// \c sizeof is known (\c std::size_t) and therefore the size of the outer
182 /// \c sizeof is known.
183 ///
184 /// \code
185 /// template<typename T>
186 /// void f(T x, T y) {
187 /// sizeof(sizeof(T() + T());
188 /// }
189 /// \endcode
190 ///
191 bool isInstantiationDependent() const {
192 return ExprBits.InstantiationDependent;
193 }
194
195 /// Set whether this expression is instantiation-dependent or not.
196 void setInstantiationDependent(bool ID) {
197 ExprBits.InstantiationDependent = ID;
198 }
199
200 /// Whether this expression contains an unexpanded parameter
201 /// pack (for C++11 variadic templates).
202 ///
203 /// Given the following function template:
204 ///
205 /// \code
206 /// template<typename F, typename ...Types>
207 /// void forward(const F &f, Types &&...args) {
208 /// f(static_cast<Types&&>(args)...);
209 /// }
210 /// \endcode
211 ///
212 /// The expressions \c args and \c static_cast<Types&&>(args) both
213 /// contain parameter packs.
214 bool containsUnexpandedParameterPack() const {
215 return ExprBits.ContainsUnexpandedParameterPack;
216 }
217
218 /// Set the bit that describes whether this expression
219 /// contains an unexpanded parameter pack.
220 void setContainsUnexpandedParameterPack(bool PP = true) {
221 ExprBits.ContainsUnexpandedParameterPack = PP;
222 }
223
224 /// getExprLoc - Return the preferred location for the arrow when diagnosing
225 /// a problem with a generic expression.
226 SourceLocation getExprLoc() const LLVM_READONLY;
227
228 /// isUnusedResultAWarning - Return true if this immediate expression should
229 /// be warned about if the result is unused. If so, fill in expr, location,
230 /// and ranges with expr to warn on and source locations/ranges appropriate
231 /// for a warning.
232 bool isUnusedResultAWarning(const Expr *&WarnExpr, SourceLocation &Loc,
233 SourceRange &R1, SourceRange &R2,
234 ASTContext &Ctx) const;
235
236 /// isLValue - True if this expression is an "l-value" according to
237 /// the rules of the current language. C and C++ give somewhat
238 /// different rules for this concept, but in general, the result of
239 /// an l-value expression identifies a specific object whereas the
240 /// result of an r-value expression is a value detached from any
241 /// specific storage.
242 ///
243 /// C++11 divides the concept of "r-value" into pure r-values
244 /// ("pr-values") and so-called expiring values ("x-values"), which
245 /// identify specific objects that can be safely cannibalized for
246 /// their resources. This is an unfortunate abuse of terminology on
247 /// the part of the C++ committee. In Clang, when we say "r-value",
248 /// we generally mean a pr-value.
249 bool isLValue() const { return getValueKind() == VK_LValue; }
250 bool isRValue() const { return getValueKind() == VK_RValue; }
251 bool isXValue() const { return getValueKind() == VK_XValue; }
252 bool isGLValue() const { return getValueKind() != VK_RValue; }
253
254 enum LValueClassification {
255 LV_Valid,
256 LV_NotObjectType,
257 LV_IncompleteVoidType,
258 LV_DuplicateVectorComponents,
259 LV_InvalidExpression,
260 LV_InvalidMessageExpression,
261 LV_MemberFunction,
262 LV_SubObjCPropertySetting,
263 LV_ClassTemporary,
264 LV_ArrayTemporary
265 };
266 /// Reasons why an expression might not be an l-value.
267 LValueClassification ClassifyLValue(ASTContext &Ctx) const;
268
269 enum isModifiableLvalueResult {
270 MLV_Valid,
271 MLV_NotObjectType,
272 MLV_IncompleteVoidType,
273 MLV_DuplicateVectorComponents,
274 MLV_InvalidExpression,
275 MLV_LValueCast, // Specialized form of MLV_InvalidExpression.
276 MLV_IncompleteType,
277 MLV_ConstQualified,
278 MLV_ConstQualifiedField,
279 MLV_ConstAddrSpace,
280 MLV_ArrayType,
281 MLV_NoSetterProperty,
282 MLV_MemberFunction,
283 MLV_SubObjCPropertySetting,
284 MLV_InvalidMessageExpression,
285 MLV_ClassTemporary,
286 MLV_ArrayTemporary
287 };
288 /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type,
289 /// does not have an incomplete type, does not have a const-qualified type,
290 /// and if it is a structure or union, does not have any member (including,
291 /// recursively, any member or element of all contained aggregates or unions)
292 /// with a const-qualified type.
293 ///
294 /// \param Loc [in,out] - A source location which *may* be filled
295 /// in with the location of the expression making this a
296 /// non-modifiable lvalue, if specified.
297 isModifiableLvalueResult
298 isModifiableLvalue(ASTContext &Ctx, SourceLocation *Loc = nullptr) const;
299
300 /// The return type of classify(). Represents the C++11 expression
301 /// taxonomy.
302 class Classification {
303 public:
304 /// The various classification results. Most of these mean prvalue.
305 enum Kinds {
306 CL_LValue,
307 CL_XValue,
308 CL_Function, // Functions cannot be lvalues in C.
309 CL_Void, // Void cannot be an lvalue in C.
310 CL_AddressableVoid, // Void expression whose address can be taken in C.
311 CL_DuplicateVectorComponents, // A vector shuffle with dupes.
312 CL_MemberFunction, // An expression referring to a member function
313 CL_SubObjCPropertySetting,
314 CL_ClassTemporary, // A temporary of class type, or subobject thereof.
315 CL_ArrayTemporary, // A temporary of array type.
316 CL_ObjCMessageRValue, // ObjC message is an rvalue
317 CL_PRValue // A prvalue for any other reason, of any other type
318 };
319 /// The results of modification testing.
320 enum ModifiableType {
321 CM_Untested, // testModifiable was false.
322 CM_Modifiable,
323 CM_RValue, // Not modifiable because it's an rvalue
324 CM_Function, // Not modifiable because it's a function; C++ only
325 CM_LValueCast, // Same as CM_RValue, but indicates GCC cast-as-lvalue ext
326 CM_NoSetterProperty,// Implicit assignment to ObjC property without setter
327 CM_ConstQualified,
328 CM_ConstQualifiedField,
329 CM_ConstAddrSpace,
330 CM_ArrayType,
331 CM_IncompleteType
332 };
333
334 private:
335 friend class Expr;
336
337 unsigned short Kind;
338 unsigned short Modifiable;
339
340 explicit Classification(Kinds k, ModifiableType m)
341 : Kind(k), Modifiable(m)
342 {}
343
344 public:
345 Classification() {}
346
347 Kinds getKind() const { return static_cast<Kinds>(Kind); }
348 ModifiableType getModifiable() const {
349 assert(Modifiable != CM_Untested && "Did not test for modifiability.");
350 return static_cast<ModifiableType>(Modifiable);
351 }
352 bool isLValue() const { return Kind == CL_LValue; }
353 bool isXValue() const { return Kind == CL_XValue; }
354 bool isGLValue() const { return Kind <= CL_XValue; }
355 bool isPRValue() const { return Kind >= CL_Function; }
356 bool isRValue() const { return Kind >= CL_XValue; }
357 bool isModifiable() const { return getModifiable() == CM_Modifiable; }
358
359 /// Create a simple, modifiably lvalue
360 static Classification makeSimpleLValue() {
361 return Classification(CL_LValue, CM_Modifiable);
362 }
363
364 };
365 /// Classify - Classify this expression according to the C++11
366 /// expression taxonomy.
367 ///
368 /// C++11 defines ([basic.lval]) a new taxonomy of expressions to replace the
369 /// old lvalue vs rvalue. This function determines the type of expression this
370 /// is. There are three expression types:
371 /// - lvalues are classical lvalues as in C++03.
372 /// - prvalues are equivalent to rvalues in C++03.
373 /// - xvalues are expressions yielding unnamed rvalue references, e.g. a
374 /// function returning an rvalue reference.
375 /// lvalues and xvalues are collectively referred to as glvalues, while
376 /// prvalues and xvalues together form rvalues.
377 Classification Classify(ASTContext &Ctx) const {
378 return ClassifyImpl(Ctx, nullptr);
379 }
380
381 /// ClassifyModifiable - Classify this expression according to the
382 /// C++11 expression taxonomy, and see if it is valid on the left side
383 /// of an assignment.
384 ///
385 /// This function extends classify in that it also tests whether the
386 /// expression is modifiable (C99 6.3.2.1p1).
387 /// \param Loc A source location that might be filled with a relevant location
388 /// if the expression is not modifiable.
389 Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const{
390 return ClassifyImpl(Ctx, &Loc);
391 }
392
393 /// getValueKindForType - Given a formal return or parameter type,
394 /// give its value kind.
395 static ExprValueKind getValueKindForType(QualType T) {
396 if (const ReferenceType *RT = T->getAs<ReferenceType>())
397 return (isa<LValueReferenceType>(RT)
398 ? VK_LValue
399 : (RT->getPointeeType()->isFunctionType()
400 ? VK_LValue : VK_XValue));
401 return VK_RValue;
402 }
403
404 /// getValueKind - The value kind that this expression produces.
405 ExprValueKind getValueKind() const {
406 return static_cast<ExprValueKind>(ExprBits.ValueKind);
407 }
408
409 /// getObjectKind - The object kind that this expression produces.
410 /// Object kinds are meaningful only for expressions that yield an
411 /// l-value or x-value.
412 ExprObjectKind getObjectKind() const {
413 return static_cast<ExprObjectKind>(ExprBits.ObjectKind);
414 }
415
416 bool isOrdinaryOrBitFieldObject() const {
417 ExprObjectKind OK = getObjectKind();
418 return (OK == OK_Ordinary || OK == OK_BitField);
419 }
420
421 /// setValueKind - Set the value kind produced by this expression.
422 void setValueKind(ExprValueKind Cat) { ExprBits.ValueKind = Cat; }
423
424 /// setObjectKind - Set the object kind produced by this expression.
425 void setObjectKind(ExprObjectKind Cat) { ExprBits.ObjectKind = Cat; }
426
427 private:
428 Classification ClassifyImpl(ASTContext &Ctx, SourceLocation *Loc) const;
429
430 public:
431
432 /// Returns true if this expression is a gl-value that
433 /// potentially refers to a bit-field.
434 ///
435 /// In C++, whether a gl-value refers to a bitfield is essentially
436 /// an aspect of the value-kind type system.
437 bool refersToBitField() const { return getObjectKind() == OK_BitField; }
438
439 /// If this expression refers to a bit-field, retrieve the
440 /// declaration of that bit-field.
441 ///
442 /// Note that this returns a non-null pointer in subtly different
443 /// places than refersToBitField returns true. In particular, this can
444 /// return a non-null pointer even for r-values loaded from
445 /// bit-fields, but it will return null for a conditional bit-field.
446 FieldDecl *getSourceBitField();
447
448 const FieldDecl *getSourceBitField() const {
449 return const_cast<Expr*>(this)->getSourceBitField();
450 }
451
452 Decl *getReferencedDeclOfCallee();
453 const Decl *getReferencedDeclOfCallee() const {
454 return const_cast<Expr*>(this)->getReferencedDeclOfCallee();
455 }
456
457 /// If this expression is an l-value for an Objective C
458 /// property, find the underlying property reference expression.
459 const ObjCPropertyRefExpr *getObjCProperty() const;
460
461 /// Check if this expression is the ObjC 'self' implicit parameter.
462 bool isObjCSelfExpr() const;
463
464 /// Returns whether this expression refers to a vector element.
465 bool refersToVectorElement() const;
466
467 /// Returns whether this expression refers to a global register
468 /// variable.
469 bool refersToGlobalRegisterVar() const;
470
471 /// Returns whether this expression has a placeholder type.
472 bool hasPlaceholderType() const {
473 return getType()->isPlaceholderType();
474 }
475
476 /// Returns whether this expression has a specific placeholder type.
477 bool hasPlaceholderType(BuiltinType::Kind K) const {
478 assert(BuiltinType::isPlaceholderTypeKind(K));
479 if (const BuiltinType *BT = dyn_cast<BuiltinType>(getType()))
480 return BT->getKind() == K;
481 return false;
482 }
483
484 /// isKnownToHaveBooleanValue - Return true if this is an integer expression
485 /// that is known to return 0 or 1. This happens for _Bool/bool expressions
486 /// but also int expressions which are produced by things like comparisons in
487 /// C.
488 bool isKnownToHaveBooleanValue() const;
489
490 /// isIntegerConstantExpr - Return true if this expression is a valid integer
491 /// constant expression, and, if so, return its value in Result. If not a
492 /// valid i-c-e, return false and fill in Loc (if specified) with the location
493 /// of the invalid expression.
494 ///
495 /// Note: This does not perform the implicit conversions required by C++11
496 /// [expr.const]p5.
497 bool isIntegerConstantExpr(llvm::APSInt &Result, const ASTContext &Ctx,
498 SourceLocation *Loc = nullptr,
499 bool isEvaluated = true) const;
500 bool isIntegerConstantExpr(const ASTContext &Ctx,
501 SourceLocation *Loc = nullptr) const;
502
503 /// isCXX98IntegralConstantExpr - Return true if this expression is an
504 /// integral constant expression in C++98. Can only be used in C++.
505 bool isCXX98IntegralConstantExpr(const ASTContext &Ctx) const;
506
507 /// isCXX11ConstantExpr - Return true if this expression is a constant
508 /// expression in C++11. Can only be used in C++.
509 ///
510 /// Note: This does not perform the implicit conversions required by C++11
511 /// [expr.const]p5.
512 bool isCXX11ConstantExpr(const ASTContext &Ctx, APValue *Result = nullptr,
513 SourceLocation *Loc = nullptr) const;
514
515 /// isPotentialConstantExpr - Return true if this function's definition
516 /// might be usable in a constant expression in C++11, if it were marked
517 /// constexpr. Return false if the function can never produce a constant
518 /// expression, along with diagnostics describing why not.
519 static bool isPotentialConstantExpr(const FunctionDecl *FD,
520 SmallVectorImpl<
521 PartialDiagnosticAt> &Diags);
522
523 /// isPotentialConstantExprUnevaluted - Return true if this expression might
524 /// be usable in a constant expression in C++11 in an unevaluated context, if
525 /// it were in function FD marked constexpr. Return false if the function can
526 /// never produce a constant expression, along with diagnostics describing
527 /// why not.
528 static bool isPotentialConstantExprUnevaluated(Expr *E,
529 const FunctionDecl *FD,
530 SmallVectorImpl<
531 PartialDiagnosticAt> &Diags);
532
533 /// isConstantInitializer - Returns true if this expression can be emitted to
534 /// IR as a constant, and thus can be used as a constant initializer in C.
535 /// If this expression is not constant and Culprit is non-null,
536 /// it is used to store the address of first non constant expr.
537 bool isConstantInitializer(ASTContext &Ctx, bool ForRef,
538 const Expr **Culprit = nullptr) const;
539
540 /// EvalStatus is a struct with detailed info about an evaluation in progress.
541 struct EvalStatus {
542 /// Whether the evaluated expression has side effects.
543 /// For example, (f() && 0) can be folded, but it still has side effects.
544 bool HasSideEffects;
545
546 /// Whether the evaluation hit undefined behavior.
547 /// For example, 1.0 / 0.0 can be folded to Inf, but has undefined behavior.
548 /// Likewise, INT_MAX + 1 can be folded to INT_MIN, but has UB.
549 bool HasUndefinedBehavior;
550
551 /// Diag - If this is non-null, it will be filled in with a stack of notes
552 /// indicating why evaluation failed (or why it failed to produce a constant
553 /// expression).
554 /// If the expression is unfoldable, the notes will indicate why it's not
555 /// foldable. If the expression is foldable, but not a constant expression,
556 /// the notes will describes why it isn't a constant expression. If the
557 /// expression *is* a constant expression, no notes will be produced.
558 SmallVectorImpl<PartialDiagnosticAt> *Diag;
559
560 EvalStatus()
561 : HasSideEffects(false), HasUndefinedBehavior(false), Diag(nullptr) {}
562
563 // hasSideEffects - Return true if the evaluated expression has
564 // side effects.
565 bool hasSideEffects() const {
566 return HasSideEffects;
567 }
568 };
569
570 /// EvalResult is a struct with detailed info about an evaluated expression.
571 struct EvalResult : EvalStatus {
572 /// Val - This is the value the expression can be folded to.
573 APValue Val;
574
575 // isGlobalLValue - Return true if the evaluated lvalue expression
576 // is global.
577 bool isGlobalLValue() const;
578 };
579
580 /// EvaluateAsRValue - Return true if this is a constant which we can fold to
581 /// an rvalue using any crazy technique (that has nothing to do with language
582 /// standards) that we want to, even if the expression has side-effects. If
583 /// this function returns true, it returns the folded constant in Result. If
584 /// the expression is a glvalue, an lvalue-to-rvalue conversion will be
585 /// applied.
586 bool EvaluateAsRValue(EvalResult &Result, const ASTContext &Ctx,
587 bool InConstantContext = false) const;
588
589 /// EvaluateAsBooleanCondition - Return true if this is a constant
590 /// which we can fold and convert to a boolean condition using
591 /// any crazy technique that we want to, even if the expression has
592 /// side-effects.
593 bool EvaluateAsBooleanCondition(bool &Result, const ASTContext &Ctx) const;
594
595 enum SideEffectsKind {
596 SE_NoSideEffects, ///< Strictly evaluate the expression.
597 SE_AllowUndefinedBehavior, ///< Allow UB that we can give a value, but not
598 ///< arbitrary unmodeled side effects.
599 SE_AllowSideEffects ///< Allow any unmodeled side effect.
600 };
601
602 /// EvaluateAsInt - Return true if this is a constant which we can fold and
603 /// convert to an integer, using any crazy technique that we want to.
604 bool EvaluateAsInt(EvalResult &Result, const ASTContext &Ctx,
605 SideEffectsKind AllowSideEffects = SE_NoSideEffects) const;
606
607 /// EvaluateAsFloat - Return true if this is a constant which we can fold and
608 /// convert to a floating point value, using any crazy technique that we
609 /// want to.
610 bool
611 EvaluateAsFloat(llvm::APFloat &Result, const ASTContext &Ctx,
612 SideEffectsKind AllowSideEffects = SE_NoSideEffects) const;
613
614 /// isEvaluatable - Call EvaluateAsRValue to see if this expression can be
615 /// constant folded without side-effects, but discard the result.
616 bool isEvaluatable(const ASTContext &Ctx,
617 SideEffectsKind AllowSideEffects = SE_NoSideEffects) const;
618
619 /// HasSideEffects - This routine returns true for all those expressions
620 /// which have any effect other than producing a value. Example is a function
621 /// call, volatile variable read, or throwing an exception. If
622 /// IncludePossibleEffects is false, this call treats certain expressions with
623 /// potential side effects (such as function call-like expressions,
624 /// instantiation-dependent expressions, or invocations from a macro) as not
625 /// having side effects.
626 bool HasSideEffects(const ASTContext &Ctx,
627 bool IncludePossibleEffects = true) const;
628
629 /// Determine whether this expression involves a call to any function
630 /// that is not trivial.
631 bool hasNonTrivialCall(const ASTContext &Ctx) const;
632
633 /// EvaluateKnownConstInt - Call EvaluateAsRValue and return the folded
634 /// integer. This must be called on an expression that constant folds to an
635 /// integer.
636 llvm::APSInt EvaluateKnownConstInt(
637 const ASTContext &Ctx,
638 SmallVectorImpl<PartialDiagnosticAt> *Diag = nullptr) const;
639
640 llvm::APSInt EvaluateKnownConstIntCheckOverflow(
641 const ASTContext &Ctx,
642 SmallVectorImpl<PartialDiagnosticAt> *Diag = nullptr) const;
643
644 void EvaluateForOverflow(const ASTContext &Ctx) const;
645
646 /// EvaluateAsLValue - Evaluate an expression to see if we can fold it to an
647 /// lvalue with link time known address, with no side-effects.
648 bool EvaluateAsLValue(EvalResult &Result, const ASTContext &Ctx) const;
649
650 /// EvaluateAsInitializer - Evaluate an expression as if it were the
651 /// initializer of the given declaration. Returns true if the initializer
652 /// can be folded to a constant, and produces any relevant notes. In C++11,
653 /// notes will be produced if the expression is not a constant expression.
654 bool EvaluateAsInitializer(APValue &Result, const ASTContext &Ctx,
655 const VarDecl *VD,
656 SmallVectorImpl<PartialDiagnosticAt> &Notes) const;
657
658 /// EvaluateWithSubstitution - Evaluate an expression as if from the context
659 /// of a call to the given function with the given arguments, inside an
660 /// unevaluated context. Returns true if the expression could be folded to a
661 /// constant.
662 bool EvaluateWithSubstitution(APValue &Value, ASTContext &Ctx,
663 const FunctionDecl *Callee,
664 ArrayRef<const Expr*> Args,
665 const Expr *This = nullptr) const;
666
667 /// Indicates how the constant expression will be used.
668 enum ConstExprUsage { EvaluateForCodeGen, EvaluateForMangling };
669
670 /// Evaluate an expression that is required to be a constant expression.
671 bool EvaluateAsConstantExpr(EvalResult &Result, ConstExprUsage Usage,
672 const ASTContext &Ctx) const;
673
674 /// If the current Expr is a pointer, this will try to statically
675 /// determine the number of bytes available where the pointer is pointing.
676 /// Returns true if all of the above holds and we were able to figure out the
677 /// size, false otherwise.
678 ///
679 /// \param Type - How to evaluate the size of the Expr, as defined by the
680 /// "type" parameter of __builtin_object_size
681 bool tryEvaluateObjectSize(uint64_t &Result, ASTContext &Ctx,
682 unsigned Type) const;
683
684 /// Enumeration used to describe the kind of Null pointer constant
685 /// returned from \c isNullPointerConstant().
686 enum NullPointerConstantKind {
687 /// Expression is not a Null pointer constant.
688 NPCK_NotNull = 0,
689
690 /// Expression is a Null pointer constant built from a zero integer
691 /// expression that is not a simple, possibly parenthesized, zero literal.
692 /// C++ Core Issue 903 will classify these expressions as "not pointers"
693 /// once it is adopted.
694 /// http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#903
695 NPCK_ZeroExpression,
696
697 /// Expression is a Null pointer constant built from a literal zero.
698 NPCK_ZeroLiteral,
699
700 /// Expression is a C++11 nullptr.
701 NPCK_CXX11_nullptr,
702
703 /// Expression is a GNU-style __null constant.
704 NPCK_GNUNull
705 };
706
707 /// Enumeration used to describe how \c isNullPointerConstant()
708 /// should cope with value-dependent expressions.
709 enum NullPointerConstantValueDependence {
710 /// Specifies that the expression should never be value-dependent.
711 NPC_NeverValueDependent = 0,
712
713 /// Specifies that a value-dependent expression of integral or
714 /// dependent type should be considered a null pointer constant.
715 NPC_ValueDependentIsNull,
716
717 /// Specifies that a value-dependent expression should be considered
718 /// to never be a null pointer constant.
719 NPC_ValueDependentIsNotNull
720 };
721
722 /// isNullPointerConstant - C99 6.3.2.3p3 - Test if this reduces down to
723 /// a Null pointer constant. The return value can further distinguish the
724 /// kind of NULL pointer constant that was detected.
725 NullPointerConstantKind isNullPointerConstant(
726 ASTContext &Ctx,
727 NullPointerConstantValueDependence NPC) const;
728
729 /// isOBJCGCCandidate - Return true if this expression may be used in a read/
730 /// write barrier.
731 bool isOBJCGCCandidate(ASTContext &Ctx) const;
732
733 /// Returns true if this expression is a bound member function.
734 bool isBoundMemberFunction(ASTContext &Ctx) const;
735
736 /// Given an expression of bound-member type, find the type
737 /// of the member. Returns null if this is an *overloaded* bound
738 /// member expression.
739 static QualType findBoundMemberType(const Expr *expr);
740
741 /// IgnoreImpCasts - Skip past any implicit casts which might
742 /// surround this expression. Only skips ImplicitCastExprs.
743 Expr *IgnoreImpCasts() LLVM_READONLY;
744
745 /// IgnoreImplicit - Skip past any implicit AST nodes which might
746 /// surround this expression.
747 Expr *IgnoreImplicit() LLVM_READONLY {
748 return cast<Expr>(Stmt::IgnoreImplicit());
749 }
750
751 const Expr *IgnoreImplicit() const LLVM_READONLY {
752 return const_cast<Expr*>(this)->IgnoreImplicit();
753 }
754
755 /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return
756 /// its subexpression. If that subexpression is also a ParenExpr,
757 /// then this method recursively returns its subexpression, and so forth.
758 /// Otherwise, the method returns the current Expr.
759 Expr *IgnoreParens() LLVM_READONLY;
760
761 /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr
762 /// or CastExprs, returning their operand.
763 Expr *IgnoreParenCasts() LLVM_READONLY;
764
765 /// Ignore casts. Strip off any CastExprs, returning their operand.
766 Expr *IgnoreCasts() LLVM_READONLY;
767
768 /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off
769 /// any ParenExpr or ImplicitCastExprs, returning their operand.
770 Expr *IgnoreParenImpCasts() LLVM_READONLY;
771
772 /// IgnoreConversionOperator - Ignore conversion operator. If this Expr is a
773 /// call to a conversion operator, return the argument.
774 Expr *IgnoreConversionOperator() LLVM_READONLY;
775
776 const Expr *IgnoreConversionOperator() const LLVM_READONLY {
777 return const_cast<Expr*>(this)->IgnoreConversionOperator();
778 }
779
780 const Expr *IgnoreParenImpCasts() const LLVM_READONLY {
781 return const_cast<Expr*>(this)->IgnoreParenImpCasts();
782 }
783
784 /// Ignore parentheses and lvalue casts. Strip off any ParenExpr and
785 /// CastExprs that represent lvalue casts, returning their operand.
786 Expr *IgnoreParenLValueCasts() LLVM_READONLY;
787
788 const Expr *IgnoreParenLValueCasts() const LLVM_READONLY {
789 return const_cast<Expr*>(this)->IgnoreParenLValueCasts();
790 }
791
792 /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the
793 /// value (including ptr->int casts of the same size). Strip off any
794 /// ParenExpr or CastExprs, returning their operand.
795 Expr *IgnoreParenNoopCasts(ASTContext &Ctx) LLVM_READONLY;
796
797 /// Ignore parentheses and derived-to-base casts.
798 Expr *ignoreParenBaseCasts() LLVM_READONLY;
799
800 const Expr *ignoreParenBaseCasts() const LLVM_READONLY {
801 return const_cast<Expr*>(this)->ignoreParenBaseCasts();
802 }
803
804 /// Determine whether this expression is a default function argument.
805 ///
806 /// Default arguments are implicitly generated in the abstract syntax tree
807 /// by semantic analysis for function calls, object constructions, etc. in
808 /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes;
809 /// this routine also looks through any implicit casts to determine whether
810 /// the expression is a default argument.
811 bool isDefaultArgument() const;
812
813 /// Determine whether the result of this expression is a
814 /// temporary object of the given class type.
815 bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const;
816
817 /// Whether this expression is an implicit reference to 'this' in C++.
818 bool isImplicitCXXThis() const;
819
820 const Expr *IgnoreImpCasts() const LLVM_READONLY {
821 return const_cast<Expr*>(this)->IgnoreImpCasts();
822 }
823 const Expr *IgnoreParens() const LLVM_READONLY {
824 return const_cast<Expr*>(this)->IgnoreParens();
825 }
826 const Expr *IgnoreParenCasts() const LLVM_READONLY {
827 return const_cast<Expr*>(this)->IgnoreParenCasts();
828 }
829 /// Strip off casts, but keep parentheses.
830 const Expr *IgnoreCasts() const LLVM_READONLY {
831 return const_cast<Expr*>(this)->IgnoreCasts();
832 }
833
834 const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const LLVM_READONLY {
835 return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx);
836 }
837
838 static bool hasAnyTypeDependentArguments(ArrayRef<Expr *> Exprs);
839
840 /// For an expression of class type or pointer to class type,
841 /// return the most derived class decl the expression is known to refer to.
842 ///
843 /// If this expression is a cast, this method looks through it to find the
844 /// most derived decl that can be inferred from the expression.
845 /// This is valid because derived-to-base conversions have undefined
846 /// behavior if the object isn't dynamically of the derived type.
847 const CXXRecordDecl *getBestDynamicClassType() const;
848
849 /// Get the inner expression that determines the best dynamic class.
850 /// If this is a prvalue, we guarantee that it is of the most-derived type
851 /// for the object itself.
852 const Expr *getBestDynamicClassTypeExpr() const;
853
854 /// Walk outwards from an expression we want to bind a reference to and
855 /// find the expression whose lifetime needs to be extended. Record
856 /// the LHSs of comma expressions and adjustments needed along the path.
857 const Expr *skipRValueSubobjectAdjustments(
858 SmallVectorImpl<const Expr *> &CommaLHS,
859 SmallVectorImpl<SubobjectAdjustment> &Adjustments) const;
860 const Expr *skipRValueSubobjectAdjustments() const {
861 SmallVector<const Expr *, 8> CommaLHSs;
862 SmallVector<SubobjectAdjustment, 8> Adjustments;
863 return skipRValueSubobjectAdjustments(CommaLHSs, Adjustments);
864 }
865
866 static bool classof(const Stmt *T) {
867 return T->getStmtClass() >= firstExprConstant &&
868 T->getStmtClass() <= lastExprConstant;
869 }
870 };
871
872 //===----------------------------------------------------------------------===//
873 // Wrapper Expressions.
874 //===----------------------------------------------------------------------===//
875
876 /// FullExpr - Represents a "full-expression" node.
877 class FullExpr : public Expr {
878 protected:
879 Stmt *SubExpr;
880
881 FullExpr(StmtClass SC, Expr *subexpr)
882 : Expr(SC, subexpr->getType(),
883 subexpr->getValueKind(), subexpr->getObjectKind(),
884 subexpr->isTypeDependent(), subexpr->isValueDependent(),
885 subexpr->isInstantiationDependent(),
886 subexpr->containsUnexpandedParameterPack()), SubExpr(subexpr) {}
887 FullExpr(StmtClass SC, EmptyShell Empty)
888 : Expr(SC, Empty) {}
889 public:
890 const Expr *getSubExpr() const { return cast<Expr>(SubExpr); }
891 Expr *getSubExpr() { return cast<Expr>(SubExpr); }
892
893 /// As with any mutator of the AST, be very careful when modifying an
894 /// existing AST to preserve its invariants.
895 void setSubExpr(Expr *E) { SubExpr = E; }
896
897 static bool classof(const Stmt *T) {
898 return T->getStmtClass() >= firstFullExprConstant &&
899 T->getStmtClass() <= lastFullExprConstant;
900 }
901 };
902
903 /// ConstantExpr - An expression that occurs in a constant context.
904 class ConstantExpr : public FullExpr {
905 ConstantExpr(Expr *subexpr)
906 : FullExpr(ConstantExprClass, subexpr) {}
907
908 public:
909 static ConstantExpr *Create(const ASTContext &Context, Expr *E) {
910 assert(!isa<ConstantExpr>(E));
911 return new (Context) ConstantExpr(E);
912 }
913
914 /// Build an empty constant expression wrapper.
915 explicit ConstantExpr(EmptyShell Empty)
916 : FullExpr(ConstantExprClass, Empty) {}
917
918 SourceLocation getBeginLoc() const LLVM_READONLY {
919 return SubExpr->getBeginLoc();
920 }
921 SourceLocation getEndLoc() const LLVM_READONLY {
922 return SubExpr->getEndLoc();
923 }
924
925 static bool classof(const Stmt *T) {
926 return T->getStmtClass() == ConstantExprClass;
927 }
928
929 // Iterators
930 child_range children() { return child_range(&SubExpr, &SubExpr+1); }
931 const_child_range children() const {
932 return const_child_range(&SubExpr, &SubExpr + 1);
933 }
934 };
935
936 //===----------------------------------------------------------------------===//
937 // Primary Expressions.
938 //===----------------------------------------------------------------------===//
939
940 /// OpaqueValueExpr - An expression referring to an opaque object of a
941 /// fixed type and value class. These don't correspond to concrete
942 /// syntax; instead they're used to express operations (usually copy
943 /// operations) on values whose source is generally obvious from
944 /// context.
945 class OpaqueValueExpr : public Expr {
946 friend class ASTStmtReader;
947 Expr *SourceExpr;
948
949 public:
950 OpaqueValueExpr(SourceLocation Loc, QualType T, ExprValueKind VK,
951 ExprObjectKind OK = OK_Ordinary,
952 Expr *SourceExpr = nullptr)
953 : Expr(OpaqueValueExprClass, T, VK, OK,
954 T->isDependentType() ||
955 (SourceExpr && SourceExpr->isTypeDependent()),
956 T->isDependentType() ||
957 (SourceExpr && SourceExpr->isValueDependent()),
958 T->isInstantiationDependentType() ||
959 (SourceExpr && SourceExpr->isInstantiationDependent()),
960 false),
961 SourceExpr(SourceExpr) {
962 setIsUnique(false);
963 OpaqueValueExprBits.Loc = Loc;
964 }
965
966 /// Given an expression which invokes a copy constructor --- i.e. a
967 /// CXXConstructExpr, possibly wrapped in an ExprWithCleanups ---
968 /// find the OpaqueValueExpr that's the source of the construction.
969 static const OpaqueValueExpr *findInCopyConstruct(const Expr *expr);
970
971 explicit OpaqueValueExpr(EmptyShell Empty)
972 : Expr(OpaqueValueExprClass, Empty) {}
973
974 /// Retrieve the location of this expression.
975 SourceLocation getLocation() const { return OpaqueValueExprBits.Loc; }
976
977 SourceLocation getBeginLoc() const LLVM_READONLY {
978 return SourceExpr ? SourceExpr->getBeginLoc() : getLocation();
979 }
980 SourceLocation getEndLoc() const LLVM_READONLY {
981 return SourceExpr ? SourceExpr->getEndLoc() : getLocation();
982 }
983 SourceLocation getExprLoc() const LLVM_READONLY {
984 return SourceExpr ? SourceExpr->getExprLoc() : getLocation();
985 }
986
987 child_range children() {
988 return child_range(child_iterator(), child_iterator());
989 }
990
991 const_child_range children() const {
992 return const_child_range(const_child_iterator(), const_child_iterator());
993 }
994
995 /// The source expression of an opaque value expression is the
996 /// expression which originally generated the value. This is
997 /// provided as a convenience for analyses that don't wish to
998 /// precisely model the execution behavior of the program.
999 ///
1000 /// The source expression is typically set when building the
1001 /// expression which binds the opaque value expression in the first
1002 /// place.
1003 Expr *getSourceExpr() const { return SourceExpr; }
1004
1005 void setIsUnique(bool V) {
1006 assert((!V || SourceExpr) &&
1007 "unique OVEs are expected to have source expressions");
1008 OpaqueValueExprBits.IsUnique = V;
1009 }
1010
1011 bool isUnique() const { return OpaqueValueExprBits.IsUnique; }
1012
1013 static bool classof(const Stmt *T) {
1014 return T->getStmtClass() == OpaqueValueExprClass;
1015 }
1016 };
1017
1018 /// A reference to a declared variable, function, enum, etc.
1019 /// [C99 6.5.1p2]
1020 ///
1021 /// This encodes all the information about how a declaration is referenced
1022 /// within an expression.
1023 ///
1024 /// There are several optional constructs attached to DeclRefExprs only when
1025 /// they apply in order to conserve memory. These are laid out past the end of
1026 /// the object, and flags in the DeclRefExprBitfield track whether they exist:
1027 ///
1028 /// DeclRefExprBits.HasQualifier:
1029 /// Specifies when this declaration reference expression has a C++
1030 /// nested-name-specifier.
1031 /// DeclRefExprBits.HasFoundDecl:
1032 /// Specifies when this declaration reference expression has a record of
1033 /// a NamedDecl (different from the referenced ValueDecl) which was found
1034 /// during name lookup and/or overload resolution.
1035 /// DeclRefExprBits.HasTemplateKWAndArgsInfo:
1036 /// Specifies when this declaration reference expression has an explicit
1037 /// C++ template keyword and/or template argument list.
1038 /// DeclRefExprBits.RefersToEnclosingVariableOrCapture
1039 /// Specifies when this declaration reference expression (validly)
1040 /// refers to an enclosed local or a captured variable.
1041 class DeclRefExpr final
1042 : public Expr,
1043 private llvm::TrailingObjects<DeclRefExpr, NestedNameSpecifierLoc,
1044 NamedDecl *, ASTTemplateKWAndArgsInfo,
1045 TemplateArgumentLoc> {
1046 friend class ASTStmtReader;
1047 friend class ASTStmtWriter;
1048 friend TrailingObjects;
1049
1050 /// The declaration that we are referencing.
1051 ValueDecl *D;
1052
1053 /// Provides source/type location info for the declaration name
1054 /// embedded in D.
1055 DeclarationNameLoc DNLoc;
1056
1057 size_t numTrailingObjects(OverloadToken<NestedNameSpecifierLoc>) const {
1058 return hasQualifier();
1059 }
1060
1061 size_t numTrailingObjects(OverloadToken<NamedDecl *>) const {
1062 return hasFoundDecl();
1063 }
1064
1065 size_t numTrailingObjects(OverloadToken<ASTTemplateKWAndArgsInfo>) const {
1066 return hasTemplateKWAndArgsInfo();
1067 }
1068
1069 /// Test whether there is a distinct FoundDecl attached to the end of
1070 /// this DRE.
1071 bool hasFoundDecl() const { return DeclRefExprBits.HasFoundDecl; }
1072
1073 DeclRefExpr(const ASTContext &Ctx, NestedNameSpecifierLoc QualifierLoc,
1074 SourceLocation TemplateKWLoc, ValueDecl *D,
1075 bool RefersToEnlosingVariableOrCapture,
1076 const DeclarationNameInfo &NameInfo, NamedDecl *FoundD,
1077 const TemplateArgumentListInfo *TemplateArgs, QualType T,
1078 ExprValueKind VK);
1079
1080 /// Construct an empty declaration reference expression.
1081 explicit DeclRefExpr(EmptyShell Empty) : Expr(DeclRefExprClass, Empty) {}
1082
1083 /// Computes the type- and value-dependence flags for this
1084 /// declaration reference expression.
1085 void computeDependence(const ASTContext &Ctx);
1086
1087 public:
1088 DeclRefExpr(const ASTContext &Ctx, ValueDecl *D,
1089 bool RefersToEnclosingVariableOrCapture, QualType T,
1090 ExprValueKind VK, SourceLocation L,
1091 const DeclarationNameLoc &LocInfo = DeclarationNameLoc());
1092
1093 static DeclRefExpr *
1094 Create(const ASTContext &Context, NestedNameSpecifierLoc QualifierLoc,
1095 SourceLocation TemplateKWLoc, ValueDecl *D,
1096 bool RefersToEnclosingVariableOrCapture, SourceLocation NameLoc,
1097 QualType T, ExprValueKind VK, NamedDecl *FoundD = nullptr,
1098 const TemplateArgumentListInfo *TemplateArgs = nullptr);
1099
1100 static DeclRefExpr *
1101 Create(const ASTContext &Context, NestedNameSpecifierLoc QualifierLoc,
1102 SourceLocation TemplateKWLoc, ValueDecl *D,
1103 bool RefersToEnclosingVariableOrCapture,
1104 const DeclarationNameInfo &NameInfo, QualType T, ExprValueKind VK,
1105 NamedDecl *FoundD = nullptr,
1106 const TemplateArgumentListInfo *TemplateArgs = nullptr);
1107
1108 /// Construct an empty declaration reference expression.
1109 static DeclRefExpr *CreateEmpty(const ASTContext &Context, bool HasQualifier,
1110 bool HasFoundDecl,
1111 bool HasTemplateKWAndArgsInfo,
1112 unsigned NumTemplateArgs);
1113
1114 ValueDecl *getDecl() { return D; }
1115 const ValueDecl *getDecl() const { return D; }
1116 void setDecl(ValueDecl *NewD) { D = NewD; }
1117
1118 DeclarationNameInfo getNameInfo() const {
1119 return DeclarationNameInfo(getDecl()->getDeclName(), getLocation(), DNLoc);
1120 }
1121
1122 SourceLocation getLocation() const { return DeclRefExprBits.Loc; }
1123 void setLocation(SourceLocation L) { DeclRefExprBits.Loc = L; }
1124 SourceLocation getBeginLoc() const LLVM_READONLY;
1125 SourceLocation getEndLoc() const LLVM_READONLY;
1126
1127 /// Determine whether this declaration reference was preceded by a
1128 /// C++ nested-name-specifier, e.g., \c N::foo.
1129 bool hasQualifier() const { return DeclRefExprBits.HasQualifier; }
1130
1131 /// If the name was qualified, retrieves the nested-name-specifier
1132 /// that precedes the name, with source-location information.
1133 NestedNameSpecifierLoc getQualifierLoc() const {
1134 if (!hasQualifier())
1135 return NestedNameSpecifierLoc();
1136 return *getTrailingObjects<NestedNameSpecifierLoc>();
1137 }
1138
1139 /// If the name was qualified, retrieves the nested-name-specifier
1140 /// that precedes the name. Otherwise, returns NULL.
1141 NestedNameSpecifier *getQualifier() const {
1142 return getQualifierLoc().getNestedNameSpecifier();
1143 }
1144
1145 /// Get the NamedDecl through which this reference occurred.
1146 ///
1147 /// This Decl may be different from the ValueDecl actually referred to in the
1148 /// presence of using declarations, etc. It always returns non-NULL, and may
1149 /// simple return the ValueDecl when appropriate.
1150
1151 NamedDecl *getFoundDecl() {
1152 return hasFoundDecl() ? *getTrailingObjects<NamedDecl *>() : D;
1153 }
1154
1155 /// Get the NamedDecl through which this reference occurred.
1156 /// See non-const variant.
1157 const NamedDecl *getFoundDecl() const {
1158 return hasFoundDecl() ? *getTrailingObjects<NamedDecl *>() : D;
1159 }
1160
1161 bool hasTemplateKWAndArgsInfo() const {
1162 return DeclRefExprBits.HasTemplateKWAndArgsInfo;
1163 }
1164
1165 /// Retrieve the location of the template keyword preceding
1166 /// this name, if any.
1167 SourceLocation getTemplateKeywordLoc() const {
1168 if (!hasTemplateKWAndArgsInfo())
1169 return SourceLocation();
1170 return getTrailingObjects<ASTTemplateKWAndArgsInfo>()->TemplateKWLoc;
1171 }
1172
1173 /// Retrieve the location of the left angle bracket starting the
1174 /// explicit template argument list following the name, if any.
1175 SourceLocation getLAngleLoc() const {
1176 if (!hasTemplateKWAndArgsInfo())
1177 return SourceLocation();
1178 return getTrailingObjects<ASTTemplateKWAndArgsInfo>()->LAngleLoc;
1179 }
1180
1181 /// Retrieve the location of the right angle bracket ending the
1182 /// explicit template argument list following the name, if any.
1183 SourceLocation getRAngleLoc() const {
1184 if (!hasTemplateKWAndArgsInfo())
1185 return SourceLocation();
1186 return getTrailingObjects<ASTTemplateKWAndArgsInfo>()->RAngleLoc;
1187 }
1188
1189 /// Determines whether the name in this declaration reference
1190 /// was preceded by the template keyword.
1191 bool hasTemplateKeyword() const { return getTemplateKeywordLoc().isValid(); }
1192
1193 /// Determines whether this declaration reference was followed by an
1194 /// explicit template argument list.
1195 bool hasExplicitTemplateArgs() const { return getLAngleLoc().isValid(); }
1196
1197 /// Copies the template arguments (if present) into the given
1198 /// structure.
1199 void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const {
1200 if (hasExplicitTemplateArgs())
1201 getTrailingObjects<ASTTemplateKWAndArgsInfo>()->copyInto(
1202 getTrailingObjects<TemplateArgumentLoc>(), List);
1203 }
1204
1205 /// Retrieve the template arguments provided as part of this
1206 /// template-id.
1207 const TemplateArgumentLoc *getTemplateArgs() const {
1208 if (!hasExplicitTemplateArgs())
1209 return nullptr;
1210 return getTrailingObjects<TemplateArgumentLoc>();
1211 }
1212
1213 /// Retrieve the number of template arguments provided as part of this
1214 /// template-id.
1215 unsigned getNumTemplateArgs() const {
1216 if (!hasExplicitTemplateArgs())
1217 return 0;
1218 return getTrailingObjects<ASTTemplateKWAndArgsInfo>()->NumTemplateArgs;
1219 }
1220
1221 ArrayRef<TemplateArgumentLoc> template_arguments() const {
1222 return {getTemplateArgs(), getNumTemplateArgs()};
1223 }
1224
1225 /// Returns true if this expression refers to a function that
1226 /// was resolved from an overloaded set having size greater than 1.
1227 bool hadMultipleCandidates() const {
1228 return DeclRefExprBits.HadMultipleCandidates;
1229 }
1230 /// Sets the flag telling whether this expression refers to
1231 /// a function that was resolved from an overloaded set having size
1232 /// greater than 1.
1233 void setHadMultipleCandidates(bool V = true) {
1234 DeclRefExprBits.HadMultipleCandidates = V;
1235 }
1236
1237 /// Does this DeclRefExpr refer to an enclosing local or a captured
1238 /// variable?
1239 bool refersToEnclosingVariableOrCapture() const {
1240 return DeclRefExprBits.RefersToEnclosingVariableOrCapture;
1241 }
1242
1243 static bool classof(const Stmt *T) {
1244 return T->getStmtClass() == DeclRefExprClass;
1245 }
1246
1247 // Iterators
1248 child_range children() {
1249 return child_range(child_iterator(), child_iterator());
1250 }
1251
1252 const_child_range children() const {
1253 return const_child_range(const_child_iterator(), const_child_iterator());
1254 }
1255 };
1256
1257 /// Used by IntegerLiteral/FloatingLiteral to store the numeric without
1258 /// leaking memory.
1259 ///
1260 /// For large floats/integers, APFloat/APInt will allocate memory from the heap
1261 /// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator
1262 /// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with
1263 /// the APFloat/APInt values will never get freed. APNumericStorage uses
1264 /// ASTContext's allocator for memory allocation.
1265 class APNumericStorage {
1266 union {
1267 uint64_t VAL; ///< Used to store the <= 64 bits integer value.
1268 uint64_t *pVal; ///< Used to store the >64 bits integer value.
1269 };
1270 unsigned BitWidth;
1271
1272 bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; }
1273
1274 APNumericStorage(const APNumericStorage &) = delete;
1275 void operator=(const APNumericStorage &) = delete;
1276
1277 protected:
1278 APNumericStorage() : VAL(0), BitWidth(0) { }
1279
1280 llvm::APInt getIntValue() const {
1281 unsigned NumWords = llvm::APInt::getNumWords(BitWidth);
1282 if (NumWords > 1)
1283 return llvm::APInt(BitWidth, NumWords, pVal);
1284 else
1285 return llvm::APInt(BitWidth, VAL);
1286 }
1287 void setIntValue(const ASTContext &C, const llvm::APInt &Val);
1288 };
1289
1290 class APIntStorage : private APNumericStorage {
1291 public:
1292 llvm::APInt getValue() const { return getIntValue(); }
1293 void setValue(const ASTContext &C, const llvm::APInt &Val) {
1294 setIntValue(C, Val);
1295 }
1296 };
1297
1298 class APFloatStorage : private APNumericStorage {
1299 public:
1300 llvm::APFloat getValue(const llvm::fltSemantics &Semantics) const {
1301 return llvm::APFloat(Semantics, getIntValue());
1302 }
1303 void setValue(const ASTContext &C, const llvm::APFloat &Val) {
1304 setIntValue(C, Val.bitcastToAPInt());
1305 }
1306 };
1307
1308 class IntegerLiteral : public Expr, public APIntStorage {
1309 SourceLocation Loc;
1310
1311 /// Construct an empty integer literal.
1312 explicit IntegerLiteral(EmptyShell Empty)
1313 : Expr(IntegerLiteralClass, Empty) { }
1314
1315 public:
1316 // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy,
1317 // or UnsignedLongLongTy
1318 IntegerLiteral(const ASTContext &C, const llvm::APInt &V, QualType type,
1319 SourceLocation l);
1320
1321 /// Returns a new integer literal with value 'V' and type 'type'.
1322 /// \param type - either IntTy, LongTy, LongLongTy, UnsignedIntTy,
1323 /// UnsignedLongTy, or UnsignedLongLongTy which should match the size of V
1324 /// \param V - the value that the returned integer literal contains.
1325 static IntegerLiteral *Create(const ASTContext &C, const llvm::APInt &V,
1326 QualType type, SourceLocation l);
1327 /// Returns a new empty integer literal.
1328 static IntegerLiteral *Create(const ASTContext &C, EmptyShell Empty);
1329
1330 SourceLocation getBeginLoc() const LLVM_READONLY { return Loc; }
1331 SourceLocation getEndLoc() const LLVM_READONLY { return Loc; }
1332
1333 /// Retrieve the location of the literal.
1334 SourceLocation getLocation() const { return Loc; }
1335
1336 void setLocation(SourceLocation Location) { Loc = Location; }
1337
1338 static bool classof(const Stmt *T) {
1339 return T->getStmtClass() == IntegerLiteralClass;
1340 }
1341
1342 // Iterators
1343 child_range children() {
1344 return child_range(child_iterator(), child_iterator());
1345 }
1346 const_child_range children() const {
1347 return const_child_range(const_child_iterator(), const_child_iterator());
1348 }
1349 };
1350
1351 class FixedPointLiteral : public Expr, public APIntStorage {
1352 SourceLocation Loc;
1353 unsigned Scale;
1354
1355 /// \brief Construct an empty integer literal.
1356 explicit FixedPointLiteral(EmptyShell Empty)
1357 : Expr(FixedPointLiteralClass, Empty) {}
1358
1359 public:
1360 FixedPointLiteral(const ASTContext &C, const llvm::APInt &V, QualType type,
1361 SourceLocation l, unsigned Scale);
1362
1363 // Store the int as is without any bit shifting.
1364 static FixedPointLiteral *CreateFromRawInt(const ASTContext &C,
1365 const llvm::APInt &V,
1366 QualType type, SourceLocation l,
1367 unsigned Scale);
1368
1369 SourceLocation getBeginLoc() const LLVM_READONLY { return Loc; }
1370 SourceLocation getEndLoc() const LLVM_READONLY { return Loc; }
1371
1372 /// \brief Retrieve the location of the literal.
1373 SourceLocation getLocation() const { return Loc; }
1374
1375 void setLocation(SourceLocation Location) { Loc = Location; }
1376
1377 static bool classof(const Stmt *T) {
1378 return T->getStmtClass() == FixedPointLiteralClass;
1379 }
1380
1381 std::string getValueAsString(unsigned Radix) const;
1382
1383 // Iterators
1384 child_range children() {
1385 return child_range(child_iterator(), child_iterator());
1386 }
1387 const_child_range children() const {
1388 return const_child_range(const_child_iterator(), const_child_iterator());
1389 }
1390 };
1391
1392 class CharacterLiteral : public Expr {
1393 public:
1394 enum CharacterKind {
1395 Ascii,
1396 Wide,
1397 UTF8,
1398 UTF16,
1399 UTF32
1400 };
1401
1402 private:
1403 unsigned Value;
1404 SourceLocation Loc;
1405 public:
1406 // type should be IntTy
1407 CharacterLiteral(unsigned value, CharacterKind kind, QualType type,
1408 SourceLocation l)
1409 : Expr(CharacterLiteralClass, type, VK_RValue, OK_Ordinary, false, false,
1410 false, false),
1411 Value(value), Loc(l) {
1412 CharacterLiteralBits.Kind = kind;
1413 }
1414
1415 /// Construct an empty character literal.
1416 CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { }
1417
1418 SourceLocation getLocation() const { return Loc; }
1419 CharacterKind getKind() const {
1420 return static_cast<CharacterKind>(CharacterLiteralBits.Kind);
1421 }
1422
1423 SourceLocation getBeginLoc() const LLVM_READONLY { return Loc; }
1424 SourceLocation getEndLoc() const LLVM_READONLY { return Loc; }
1425
1426 unsigned getValue() const { return Value; }
1427
1428 void setLocation(SourceLocation Location) { Loc = Location; }
1429 void setKind(CharacterKind kind) { CharacterLiteralBits.Kind = kind; }
1430 void setValue(unsigned Val) { Value = Val; }
1431
1432 static bool classof(const Stmt *T) {
1433 return T->getStmtClass() == CharacterLiteralClass;
1434 }
1435
1436 // Iterators
1437 child_range children() {
1438 return child_range(child_iterator(), child_iterator());
1439 }
1440 const_child_range children() const {
1441 return const_child_range(const_child_iterator(), const_child_iterator());
1442 }
1443 };
1444
1445 class FloatingLiteral : public Expr, private APFloatStorage {
1446 SourceLocation Loc;
1447
1448 FloatingLiteral(const ASTContext &C, const llvm::APFloat &V, bool isexact,
1449 QualType Type, SourceLocation L);
1450
1451 /// Construct an empty floating-point literal.
1452 explicit FloatingLiteral(const ASTContext &C, EmptyShell Empty);
1453
1454 public:
1455 static FloatingLiteral *Create(const ASTContext &C, const llvm::APFloat &V,
1456 bool isexact, QualType Type, SourceLocation L);
1457 static FloatingLiteral *Create(const ASTContext &C, EmptyShell Empty);
1458
1459 llvm::APFloat getValue() const {
1460 return APFloatStorage::getValue(getSemantics());
1461 }
1462 void setValue(const ASTContext &C, const llvm::APFloat &Val) {
1463 assert(&getSemantics() == &Val.getSemantics() && "Inconsistent semantics");
1464 APFloatStorage::setValue(C, Val);
1465 }
1466
1467 /// Get a raw enumeration value representing the floating-point semantics of
1468 /// this literal (32-bit IEEE, x87, ...), suitable for serialisation.
1469 APFloatSemantics getRawSemantics() const {
1470 return static_cast<APFloatSemantics>(FloatingLiteralBits.Semantics);
1471 }
1472
1473 /// Set the raw enumeration value representing the floating-point semantics of
1474 /// this literal (32-bit IEEE, x87, ...), suitable for serialisation.
1475 void setRawSemantics(APFloatSemantics Sem) {
1476 FloatingLiteralBits.Semantics = Sem;
1477 }
1478
1479 /// Return the APFloat semantics this literal uses.
1480 const llvm::fltSemantics &getSemantics() const;
1481
1482 /// Set the APFloat semantics this literal uses.
1483 void setSemantics(const llvm::fltSemantics &Sem);
1484
1485 bool isExact() const { return FloatingLiteralBits.IsExact; }
1486 void setExact(bool E) { FloatingLiteralBits.IsExact = E; }
1487
1488 /// getValueAsApproximateDouble - This returns the value as an inaccurate
1489 /// double. Note that this may cause loss of precision, but is useful for
1490 /// debugging dumps, etc.
1491 double getValueAsApproximateDouble() const;
1492
1493 SourceLocation getLocation() const { return Loc; }
1494 void setLocation(SourceLocation L) { Loc = L; }
1495
1496 SourceLocation getBeginLoc() const LLVM_READONLY { return Loc; }
1497 SourceLocation getEndLoc() const LLVM_READONLY { return Loc; }
1498
1499 static bool classof(const Stmt *T) {
1500 return T->getStmtClass() == FloatingLiteralClass;
1501 }
1502
1503 // Iterators
1504 child_range children() {
1505 return child_range(child_iterator(), child_iterator());
1506 }
1507 const_child_range children() const {
1508 return const_child_range(const_child_iterator(), const_child_iterator());
1509 }
1510 };
1511
1512 /// ImaginaryLiteral - We support imaginary integer and floating point literals,
1513 /// like "1.0i". We represent these as a wrapper around FloatingLiteral and
1514 /// IntegerLiteral classes. Instances of this class always have a Complex type
1515 /// whose element type matches the subexpression.
1516 ///
1517 class ImaginaryLiteral : public Expr {
1518 Stmt *Val;
1519 public:
1520 ImaginaryLiteral(Expr *val, QualType Ty)
1521 : Expr(ImaginaryLiteralClass, Ty, VK_RValue, OK_Ordinary, false, false,
1522 false, false),
1523 Val(val) {}
1524
1525 /// Build an empty imaginary literal.
1526 explicit ImaginaryLiteral(EmptyShell Empty)
1527 : Expr(ImaginaryLiteralClass, Empty) { }
1528
1529 const Expr *getSubExpr() const { return cast<Expr>(Val); }
1530 Expr *getSubExpr() { return cast<Expr>(Val); }
1531 void setSubExpr(Expr *E) { Val = E; }
1532
1533 SourceLocation getBeginLoc() const LLVM_READONLY {
1534 return Val->getBeginLoc();
1535 }
1536 SourceLocation getEndLoc() const LLVM_READONLY { return Val->getEndLoc(); }
1537
1538 static bool classof(const Stmt *T) {
1539 return T->getStmtClass() == ImaginaryLiteralClass;
1540 }
1541
1542 // Iterators
1543 child_range children() { return child_range(&Val, &Val+1); }
1544 const_child_range children() const {
1545 return const_child_range(&Val, &Val + 1);
1546 }
1547 };
1548
1549 /// StringLiteral - This represents a string literal expression, e.g. "foo"
1550 /// or L"bar" (wide strings). The actual string data can be obtained with
1551 /// getBytes() and is NOT null-terminated. The length of the string data is
1552 /// determined by calling getByteLength().
1553 ///
1554 /// The C type for a string is always a ConstantArrayType. In C++, the char
1555 /// type is const qualified, in C it is not.
1556 ///
1557 /// Note that strings in C can be formed by concatenation of multiple string
1558 /// literal pptokens in translation phase #6. This keeps track of the locations
1559 /// of each of these pieces.
1560 ///
1561 /// Strings in C can also be truncated and extended by assigning into arrays,
1562 /// e.g. with constructs like:
1563 /// char X[2] = "foobar";
1564 /// In this case, getByteLength() will return 6, but the string literal will
1565 /// have type "char[2]".
1566 class StringLiteral final
1567 : public Expr,
1568 private llvm::TrailingObjects<StringLiteral, unsigned, SourceLocation,
1569 char> {
1570 friend class ASTStmtReader;
1571 friend TrailingObjects;
1572
1573 /// StringLiteral is followed by several trailing objects. They are in order:
1574 ///
1575 /// * A single unsigned storing the length in characters of this string. The
1576 /// length in bytes is this length times the width of a single character.
1577 /// Always present and stored as a trailing objects because storing it in
1578 /// StringLiteral would increase the size of StringLiteral by sizeof(void *)
1579 /// due to alignment requirements. If you add some data to StringLiteral,
1580 /// consider moving it inside StringLiteral.
1581 ///
1582 /// * An array of getNumConcatenated() SourceLocation, one for each of the
1583 /// token this string is made of.
1584 ///
1585 /// * An array of getByteLength() char used to store the string data.
1586
1587 public:
1588 enum StringKind { Ascii, Wide, UTF8, UTF16, UTF32 };
1589
1590 private:
1591 unsigned numTrailingObjects(OverloadToken<unsigned>) const { return 1; }
1592 unsigned numTrailingObjects(OverloadToken<SourceLocation>) const {
1593 return getNumConcatenated();
1594 }
1595
1596 unsigned numTrailingObjects(OverloadToken<char>) const {
1597 return getByteLength();
1598 }
1599
1600 char *getStrDataAsChar() { return getTrailingObjects<char>(); }
1601 const char *getStrDataAsChar() const { return getTrailingObjects<char>(); }
1602
1603 const uint16_t *getStrDataAsUInt16() const {
1604 return reinterpret_cast<const uint16_t *>(getTrailingObjects<char>());
1605 }
1606
1607 const uint32_t *getStrDataAsUInt32() const {
1608 return reinterpret_cast<const uint32_t *>(getTrailingObjects<char>());
1609 }
1610
1611 /// Build a string literal.
1612 StringLiteral(const ASTContext &Ctx, StringRef Str, StringKind Kind,
1613 bool Pascal, QualType Ty, const SourceLocation *Loc,
1614 unsigned NumConcatenated);
1615
1616 /// Build an empty string literal.
1617 StringLiteral(EmptyShell Empty, unsigned NumConcatenated, unsigned Length,
1618 unsigned CharByteWidth);
1619
1620 /// Map a target and string kind to the appropriate character width.
1621 static unsigned mapCharByteWidth(TargetInfo const &Target, StringKind SK);
1622
1623 /// Set one of the string literal token.
1624 void setStrTokenLoc(unsigned TokNum, SourceLocation L) {
1625 assert(TokNum < getNumConcatenated() && "Invalid tok number");
1626 getTrailingObjects<SourceLocation>()[TokNum] = L;
1627 }
1628
1629 public:
1630 /// This is the "fully general" constructor that allows representation of
1631 /// strings formed from multiple concatenated tokens.
1632 static StringLiteral *Create(const ASTContext &Ctx, StringRef Str,
1633 StringKind Kind, bool Pascal, QualType Ty,
1634 const SourceLocation *Loc,
1635 unsigned NumConcatenated);
1636
1637 /// Simple constructor for string literals made from one token.
1638 static StringLiteral *Create(const ASTContext &Ctx, StringRef Str,
1639 StringKind Kind, bool Pascal, QualType Ty,
1640 SourceLocation Loc) {
1641 return Create(Ctx, Str, Kind, Pascal, Ty, &Loc, 1);
1642 }
1643
1644 /// Construct an empty string literal.
1645 static StringLiteral *CreateEmpty(const ASTContext &Ctx,
1646 unsigned NumConcatenated, unsigned Length,
1647 unsigned CharByteWidth);
1648
1649 StringRef getString() const {
1650 assert(getCharByteWidth() == 1 &&
1651 "This function is used in places that assume strings use char");
1652 return StringRef(getStrDataAsChar(), getByteLength());
1653 }
1654
1655 /// Allow access to clients that need the byte representation, such as
1656 /// ASTWriterStmt::VisitStringLiteral().
1657 StringRef getBytes() const {
1658 // FIXME: StringRef may not be the right type to use as a result for this.
1659 return StringRef(getStrDataAsChar(), getByteLength());
1660 }
1661
1662 void outputString(raw_ostream &OS) const;
1663
1664 uint32_t getCodeUnit(size_t i) const {
1665 assert(i < getLength() && "out of bounds access");
1666 switch (getCharByteWidth()) {
1667 case 1:
1668 return static_cast<unsigned char>(getStrDataAsChar()[i]);
1669 case 2:
1670 return getStrDataAsUInt16()[i];
1671 case 4:
1672 return getStrDataAsUInt32()[i];
1673 }
1674 llvm_unreachable("Unsupported character width!");
1675 }
1676
1677 unsigned getByteLength() const { return getCharByteWidth() * getLength(); }
1678 unsigned getLength() const { return *getTrailingObjects<unsigned>(); }
1679 unsigned getCharByteWidth() const { return StringLiteralBits.CharByteWidth; }
1680
1681 StringKind getKind() const {
1682 return static_cast<StringKind>(StringLiteralBits.Kind);
1683 }
1684
1685 bool isAscii() const { return getKind() == Ascii; }
1686 bool isWide() const { return getKind() == Wide; }
1687 bool isUTF8() const { return getKind() == UTF8; }
1688 bool isUTF16() const { return getKind() == UTF16; }
1689 bool isUTF32() const { return getKind() == UTF32; }
1690 bool isPascal() const { return StringLiteralBits.IsPascal; }
1691
1692 bool containsNonAscii() const {
1693 for (auto c : getString())
1694 if (!isASCII(c))
1695 return true;
1696 return false;
1697 }
1698
1699 bool containsNonAsciiOrNull() const {
1700 for (auto c : getString())
1701 if (!isASCII(c) || !c)
1702 return true;
1703 return false;
1704 }
1705
1706 /// getNumConcatenated - Get the number of string literal tokens that were
1707 /// concatenated in translation phase #6 to form this string literal.
1708 unsigned getNumConcatenated() const {
1709 return StringLiteralBits.NumConcatenated;
1710 }
1711
1712 /// Get one of the string literal token.
1713 SourceLocation getStrTokenLoc(unsigned TokNum) const {
1714 assert(TokNum < getNumConcatenated() && "Invalid tok number");
1715 return getTrailingObjects<SourceLocation>()[TokNum];
1716 }
1717
1718 /// getLocationOfByte - Return a source location that points to the specified
1719 /// byte of this string literal.
1720 ///
1721 /// Strings are amazingly complex. They can be formed from multiple tokens
1722 /// and can have escape sequences in them in addition to the usual trigraph
1723 /// and escaped newline business. This routine handles this complexity.
1724 ///
1725 SourceLocation
1726 getLocationOfByte(unsigned ByteNo, const SourceManager &SM,
1727 const LangOptions &Features, const TargetInfo &Target,
1728 unsigned *StartToken = nullptr,
1729 unsigned *StartTokenByteOffset = nullptr) const;
1730
1731 typedef const SourceLocation *tokloc_iterator;
1732
1733 tokloc_iterator tokloc_begin() const {
1734 return getTrailingObjects<SourceLocation>();
1735 }
1736
1737 tokloc_iterator tokloc_end() const {
1738 return getTrailingObjects<SourceLocation>() + getNumConcatenated();
1739 }
1740
1741 SourceLocation getBeginLoc() const LLVM_READONLY { return *tokloc_begin(); }
1742 SourceLocation getEndLoc() const LLVM_READONLY { return *(tokloc_end() - 1); }
1743
1744 static bool classof(const Stmt *T) {
1745 return T->getStmtClass() == StringLiteralClass;
1746 }
1747
1748 // Iterators
1749 child_range children() {
1750 return child_range(child_iterator(), child_iterator());
1751 }
1752 const_child_range children() const {
1753 return const_child_range(const_child_iterator(), const_child_iterator());
1754 }
1755 };
1756
1757 /// [C99 6.4.2.2] - A predefined identifier such as __func__.
1758 class PredefinedExpr final
1759 : public Expr,
1760 private llvm::TrailingObjects<PredefinedExpr, Stmt *> {
1761 friend class ASTStmtReader;
1762 friend TrailingObjects;
1763
1764 // PredefinedExpr is optionally followed by a single trailing
1765 // "Stmt *" for the predefined identifier. It is present if and only if
1766 // hasFunctionName() is true and is always a "StringLiteral *".
1767
1768 public:
1769 enum IdentKind {
1770 Func,
1771 Function,
1772 LFunction, // Same as Function, but as wide string.
1773 FuncDName,
1774 FuncSig,
1775 LFuncSig, // Same as FuncSig, but as as wide string
1776 PrettyFunction,
1777 /// The same as PrettyFunction, except that the
1778 /// 'virtual' keyword is omitted for virtual member functions.
1779 PrettyFunctionNoVirtual
1780 };
1781
1782 private:
1783 PredefinedExpr(SourceLocation L, QualType FNTy, IdentKind IK,
1784 StringLiteral *SL);
1785
1786 explicit PredefinedExpr(EmptyShell Empty, bool HasFunctionName);
1787
1788 /// True if this PredefinedExpr has storage for a function name.
1789 bool hasFunctionName() const { return PredefinedExprBits.HasFunctionName; }
1790
1791 void setFunctionName(StringLiteral *SL) {
1792 assert(hasFunctionName() &&
1793 "This PredefinedExpr has no storage for a function name!");
1794 *getTrailingObjects<Stmt *>() = SL;
1795 }
1796
1797 public:
1798 /// Create a PredefinedExpr.
1799 static PredefinedExpr *Create(const ASTContext &Ctx, SourceLocation L,
1800 QualType FNTy, IdentKind IK, StringLiteral *SL);
1801
1802 /// Create an empty PredefinedExpr.
1803 static PredefinedExpr *CreateEmpty(const ASTContext &Ctx,
1804 bool HasFunctionName);
1805
1806 IdentKind getIdentKind() const {
1807 return static_cast<IdentKind>(PredefinedExprBits.Kind);
1808 }
1809
1810 SourceLocation getLocation() const { return PredefinedExprBits.Loc; }
1811 void setLocation(SourceLocation L) { PredefinedExprBits.Loc = L; }
1812
1813 StringLiteral *getFunctionName() {
1814 return hasFunctionName()
1815 ? static_cast<StringLiteral *>(*getTrailingObjects<Stmt *>())
1816 : nullptr;
1817 }
1818
1819 const StringLiteral *getFunctionName() const {
1820 return hasFunctionName()
1821 ? static_cast<StringLiteral *>(*getTrailingObjects<Stmt *>())
1822 : nullptr;
1823 }
1824
1825 static StringRef getIdentKindName(IdentKind IK);
1826 static std::string ComputeName(IdentKind IK, const Decl *CurrentDecl);
1827
1828 SourceLocation getBeginLoc() const { return getLocation(); }
1829 SourceLocation getEndLoc() const { return getLocation(); }
1830
1831 static bool classof(const Stmt *T) {
1832 return T->getStmtClass() == PredefinedExprClass;
1833 }
1834
1835 // Iterators
1836 child_range children() {
1837 return child_range(getTrailingObjects<Stmt *>(),
1838 getTrailingObjects<Stmt *>() + hasFunctionName());
1839 }
1840 };
1841
1842 /// ParenExpr - This represents a parethesized expression, e.g. "(1)". This
1843 /// AST node is only formed if full location information is requested.
1844 class ParenExpr : public Expr {
1845 SourceLocation L, R;
1846 Stmt *Val;
1847 public:
1848 ParenExpr(SourceLocation l, SourceLocation r, Expr *val)
1849 : Expr(ParenExprClass, val->getType(),
1850 val->getValueKind(), val->getObjectKind(),
1851 val->isTypeDependent(), val->isValueDependent(),
1852 val->isInstantiationDependent(),
1853 val->containsUnexpandedParameterPack()),
1854 L(l), R(r), Val(val) {}
1855
1856 /// Construct an empty parenthesized expression.
1857 explicit ParenExpr(EmptyShell Empty)
1858 : Expr(ParenExprClass, Empty) { }
1859
1860 const Expr *getSubExpr() const { return cast<Expr>(Val); }
1861 Expr *getSubExpr() { return cast<Expr>(Val); }
1862 void setSubExpr(Expr *E) { Val = E; }
1863
1864 SourceLocation getBeginLoc() const LLVM_READONLY { return L; }
1865 SourceLocation getEndLoc() const LLVM_READONLY { return R; }
1866
1867 /// Get the location of the left parentheses '('.
1868 SourceLocation getLParen() const { return L; }
1869 void setLParen(SourceLocation Loc) { L = Loc; }
1870
1871 /// Get the location of the right parentheses ')'.
1872 SourceLocation getRParen() const { return R; }
1873 void setRParen(SourceLocation Loc) { R = Loc; }
1874
1875 static bool classof(const Stmt *T) {
1876 return T->getStmtClass() == ParenExprClass;
1877 }
1878
1879 // Iterators
1880 child_range children() { return child_range(&Val, &Val+1); }
1881 const_child_range children() const {
1882 return const_child_range(&Val, &Val + 1);
1883 }
1884 };
1885
1886 /// UnaryOperator - This represents the unary-expression's (except sizeof and
1887 /// alignof), the postinc/postdec operators from postfix-expression, and various
1888 /// extensions.
1889 ///
1890 /// Notes on various nodes:
1891 ///
1892 /// Real/Imag - These return the real/imag part of a complex operand. If
1893 /// applied to a non-complex value, the former returns its operand and the
1894 /// later returns zero in the type of the operand.
1895 ///
1896 class UnaryOperator : public Expr {
1897 Stmt *Val;
1898
1899 public:
1900 typedef UnaryOperatorKind Opcode;
1901
1902 UnaryOperator(Expr *input, Opcode opc, QualType type, ExprValueKind VK,
1903 ExprObjectKind OK, SourceLocation l, bool CanOverflow)
1904 : Expr(UnaryOperatorClass, type, VK, OK,
1905 input->isTypeDependent() || type->isDependentType(),
1906 input->isValueDependent(),
1907 (input->isInstantiationDependent() ||
1908 type->isInstantiationDependentType()),
1909 input->containsUnexpandedParameterPack()),
1910 Val(input) {
1911 UnaryOperatorBits.Opc = opc;
1912 UnaryOperatorBits.CanOverflow = CanOverflow;
1913 UnaryOperatorBits.Loc = l;
1914 }
1915
1916 /// Build an empty unary operator.
1917 explicit UnaryOperator(EmptyShell Empty) : Expr(UnaryOperatorClass, Empty) {
1918 UnaryOperatorBits.Opc = UO_AddrOf;
1919 }
1920
1921 Opcode getOpcode() const {
1922 return static_cast<Opcode>(UnaryOperatorBits.Opc);
1923 }
1924 void setOpcode(Opcode Opc) { UnaryOperatorBits.Opc = Opc; }
1925
1926 Expr *getSubExpr() const { return cast<Expr>(Val); }
1927 void setSubExpr(Expr *E) { Val = E; }
1928
1929 /// getOperatorLoc - Return the location of the operator.
1930 SourceLocation getOperatorLoc() const { return UnaryOperatorBits.Loc; }
1931 void setOperatorLoc(SourceLocation L) { UnaryOperatorBits.Loc = L; }
1932
1933 /// Returns true if the unary operator can cause an overflow. For instance,
1934 /// signed int i = INT_MAX; i++;
1935 /// signed char c = CHAR_MAX; c++;
1936 /// Due to integer promotions, c++ is promoted to an int before the postfix
1937 /// increment, and the result is an int that cannot overflow. However, i++
1938 /// can overflow.
1939 bool canOverflow() const { return UnaryOperatorBits.CanOverflow; }
1940 void setCanOverflow(bool C) { UnaryOperatorBits.CanOverflow = C; }
1941
1942 /// isPostfix - Return true if this is a postfix operation, like x++.
1943 static bool isPostfix(Opcode Op) {
1944 return Op == UO_PostInc || Op == UO_PostDec;
1945 }
1946
1947 /// isPrefix - Return true if this is a prefix operation, like --x.
1948 static bool isPrefix(Opcode Op) {
1949 return Op == UO_PreInc || Op == UO_PreDec;
1950 }
1951
1952 bool isPrefix() const { return isPrefix(getOpcode()); }
1953 bool isPostfix() const { return isPostfix(getOpcode()); }
1954
1955 static bool isIncrementOp(Opcode Op) {
1956 return Op == UO_PreInc || Op == UO_PostInc;
1957 }
1958 bool isIncrementOp() const {
1959 return isIncrementOp(getOpcode());
1960 }
1961
1962 static bool isDecrementOp(Opcode Op) {
1963 return Op == UO_PreDec || Op == UO_PostDec;
1964 }
1965 bool isDecrementOp() const {
1966 return isDecrementOp(getOpcode());
1967 }
1968
1969 static bool isIncrementDecrementOp(Opcode Op) { return Op <= UO_PreDec; }
1970 bool isIncrementDecrementOp() const {
1971 return isIncrementDecrementOp(getOpcode());
1972 }
1973
1974 static bool isArithmeticOp(Opcode Op) {
1975 return Op >= UO_Plus && Op <= UO_LNot;
1976 }
1977 bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); }
1978
1979 /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it
1980 /// corresponds to, e.g. "sizeof" or "[pre]++"
1981 static StringRef getOpcodeStr(Opcode Op);
1982
1983 /// Retrieve the unary opcode that corresponds to the given
1984 /// overloaded operator.
1985 static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix);
1986
1987 /// Retrieve the overloaded operator kind that corresponds to
1988 /// the given unary opcode.
1989 static OverloadedOperatorKind getOverloadedOperator(Opcode Opc);
1990
1991 SourceLocation getBeginLoc() const LLVM_READONLY {
1992 return isPostfix() ? Val->getBeginLoc() : getOperatorLoc();
1993 }
1994 SourceLocation getEndLoc() const LLVM_READONLY {
1995 return isPostfix() ? getOperatorLoc() : Val->getEndLoc();
1996 }
1997 SourceLocation getExprLoc() const { return getOperatorLoc(); }
1998
1999 static bool classof(const Stmt *T) {
2000 return T->getStmtClass() == UnaryOperatorClass;
2001 }
2002
2003 // Iterators
2004 child_range children() { return child_range(&Val, &Val+1); }
2005 const_child_range children() const {
2006 return const_child_range(&Val, &Val + 1);
2007 }
2008 };
2009
2010 /// Helper class for OffsetOfExpr.
2011
2012 // __builtin_offsetof(type, identifier(.identifier|[expr])*)
2013 class OffsetOfNode {
2014 public:
2015 /// The kind of offsetof node we have.
2016 enum Kind {
2017 /// An index into an array.
2018 Array = 0x00,
2019 /// A field.
2020 Field = 0x01,
2021 /// A field in a dependent type, known only by its name.
2022 Identifier = 0x02,
2023 /// An implicit indirection through a C++ base class, when the
2024 /// field found is in a base class.
2025 Base = 0x03
2026 };
2027
2028 private:
2029 enum { MaskBits = 2, Mask = 0x03 };
2030
2031 /// The source range that covers this part of the designator.
2032 SourceRange Range;
2033
2034 /// The data describing the designator, which comes in three
2035 /// different forms, depending on the lower two bits.
2036 /// - An unsigned index into the array of Expr*'s stored after this node
2037 /// in memory, for [constant-expression] designators.
2038 /// - A FieldDecl*, for references to a known field.
2039 /// - An IdentifierInfo*, for references to a field with a given name
2040 /// when the class type is dependent.
2041 /// - A CXXBaseSpecifier*, for references that look at a field in a
2042 /// base class.
2043 uintptr_t Data;
2044
2045 public:
2046 /// Create an offsetof node that refers to an array element.
2047 OffsetOfNode(SourceLocation LBracketLoc, unsigned Index,
2048 SourceLocation RBracketLoc)
2049 : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) {}
2050
2051 /// Create an offsetof node that refers to a field.
2052 OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, SourceLocation NameLoc)
2053 : Range(DotLoc.isValid() ? DotLoc : NameLoc, NameLoc),
2054 Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) {}
2055
2056 /// Create an offsetof node that refers to an identifier.
2057 OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name,
2058 SourceLocation NameLoc)
2059 : Range(DotLoc.isValid() ? DotLoc : NameLoc, NameLoc),
2060 Data(reinterpret_cast<uintptr_t>(Name) | Identifier) {}
2061
2062 /// Create an offsetof node that refers into a C++ base class.
2063 explicit OffsetOfNode(const CXXBaseSpecifier *Base)
2064 : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {}
2065
2066 /// Determine what kind of offsetof node this is.
2067 Kind getKind() const { return static_cast<Kind>(Data & Mask); }
2068
2069 /// For an array element node, returns the index into the array
2070 /// of expressions.
2071 unsigned getArrayExprIndex() const {
2072 assert(getKind() == Array);
2073 return Data >> 2;
2074 }
2075
2076 /// For a field offsetof node, returns the field.
2077 FieldDecl *getField() const {
2078 assert(getKind() == Field);
2079 return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask);
2080 }
2081
2082 /// For a field or identifier offsetof node, returns the name of
2083 /// the field.
2084 IdentifierInfo *getFieldName() const;
2085
2086 /// For a base class node, returns the base specifier.
2087 CXXBaseSpecifier *getBase() const {
2088 assert(getKind() == Base);
2089 return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask);
2090 }
2091
2092 /// Retrieve the source range that covers this offsetof node.
2093 ///
2094 /// For an array element node, the source range contains the locations of
2095 /// the square brackets. For a field or identifier node, the source range
2096 /// contains the location of the period (if there is one) and the
2097 /// identifier.
2098 SourceRange getSourceRange() const LLVM_READONLY { return Range; }
2099 SourceLocation getBeginLoc() const LLVM_READONLY { return Range.getBegin(); }
2100 SourceLocation getEndLoc() const LLVM_READONLY { return Range.getEnd(); }
2101 };
2102
2103 /// OffsetOfExpr - [C99 7.17] - This represents an expression of the form
2104 /// offsetof(record-type, member-designator). For example, given:
2105 /// @code
2106 /// struct S {
2107 /// float f;
2108 /// double d;
2109 /// };
2110 /// struct T {
2111 /// int i;
2112 /// struct S s[10];
2113 /// };
2114 /// @endcode
2115 /// we can represent and evaluate the expression @c offsetof(struct T, s[2].d).
2116
2117 class OffsetOfExpr final
2118 : public Expr,
2119 private llvm::TrailingObjects<OffsetOfExpr, OffsetOfNode, Expr *> {
2120 SourceLocation OperatorLoc, RParenLoc;
2121 // Base type;
2122 TypeSourceInfo *TSInfo;
2123 // Number of sub-components (i.e. instances of OffsetOfNode).
2124 unsigned NumComps;
2125 // Number of sub-expressions (i.e. array subscript expressions).
2126 unsigned NumExprs;
2127
2128 size_t numTrailingObjects(OverloadToken<OffsetOfNode>) const {
2129 return NumComps;
2130 }
2131
2132 OffsetOfExpr(const ASTContext &C, QualType type,
2133 SourceLocation OperatorLoc, TypeSourceInfo *tsi,
2134 ArrayRef<OffsetOfNode> comps, ArrayRef<Expr*> exprs,
2135 SourceLocation RParenLoc);
2136
2137 explicit OffsetOfExpr(unsigned numComps, unsigned numExprs)
2138 : Expr(OffsetOfExprClass, EmptyShell()),
2139 TSInfo(nullptr), NumComps(numComps), NumExprs(numExprs) {}
2140
2141 public:
2142
2143 static OffsetOfExpr *Create(const ASTContext &C, QualType type,
2144 SourceLocation OperatorLoc, TypeSourceInfo *tsi,
2145 ArrayRef<OffsetOfNode> comps,
2146 ArrayRef<Expr*> exprs, SourceLocation RParenLoc);
2147
2148 static OffsetOfExpr *CreateEmpty(const ASTContext &C,
2149 unsigned NumComps, unsigned NumExprs);
2150
2151 /// getOperatorLoc - Return the location of the operator.
2152 SourceLocation getOperatorLoc() const { return OperatorLoc; }
2153 void setOperatorLoc(SourceLocation L) { OperatorLoc = L; }
2154
2155 /// Return the location of the right parentheses.
2156 SourceLocation getRParenLoc() const { return RParenLoc; }
2157 void setRParenLoc(SourceLocation R) { RParenLoc = R; }
2158
2159 TypeSourceInfo *getTypeSourceInfo() const {
2160 return TSInfo;
2161 }
2162 void setTypeSourceInfo(TypeSourceInfo *tsi) {
2163 TSInfo = tsi;
2164 }
2165
2166 const OffsetOfNode &getComponent(unsigned Idx) const {
2167 assert(Idx < NumComps && "Subscript out of range");
2168 return getTrailingObjects<OffsetOfNode>()[Idx];
2169 }
2170
2171 void setComponent(unsigned Idx, OffsetOfNode ON) {
2172 assert(Idx < NumComps && "Subscript out of range");
2173 getTrailingObjects<OffsetOfNode>()[Idx] = ON;
2174 }
2175
2176 unsigned getNumComponents() const {
2177 return NumComps;
2178 }
2179
2180 Expr* getIndexExpr(unsigned Idx) {
2181 assert(Idx < NumExprs && "Subscript out of range");
2182 return getTrailingObjects<Expr *>()[Idx];
2183 }
2184
2185 const Expr *getIndexExpr(unsigned Idx) const {
2186 assert(Idx < NumExprs && "Subscript out of range");
2187 return getTrailingObjects<Expr *>()[Idx];
2188 }
2189
2190 void setIndexExpr(unsigned Idx, Expr* E) {
2191 assert(Idx < NumComps && "Subscript out of range");
2192 getTrailingObjects<Expr *>()[Idx] = E;
2193 }
2194
2195 unsigned getNumExpressions() const {
2196 return NumExprs;
2197 }
2198
2199 SourceLocation getBeginLoc() const LLVM_READONLY { return OperatorLoc; }
2200 SourceLocation getEndLoc() const LLVM_READONLY { return RParenLoc; }
2201
2202 static bool classof(const Stmt *T) {
2203 return T->getStmtClass() == OffsetOfExprClass;
2204 }
2205
2206 // Iterators
2207 child_range children() {
2208 Stmt **begin = reinterpret_cast<Stmt **>(getTrailingObjects<Expr *>());
2209 return child_range(begin, begin + NumExprs);
2210 }
2211 const_child_range children() const {
2212 Stmt *const *begin =
2213 reinterpret_cast<Stmt *const *>(getTrailingObjects<Expr *>());
2214 return const_child_range(begin, begin + NumExprs);
2215 }
2216 friend TrailingObjects;
2217 };
2218
2219 /// UnaryExprOrTypeTraitExpr - expression with either a type or (unevaluated)
2220 /// expression operand. Used for sizeof/alignof (C99 6.5.3.4) and
2221 /// vec_step (OpenCL 1.1 6.11.12).
2222 class UnaryExprOrTypeTraitExpr : public Expr {
2223 union {
2224 TypeSourceInfo *Ty;
2225 Stmt *Ex;
2226 } Argument;
2227 SourceLocation OpLoc, RParenLoc;
2228
2229 public:
2230 UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, TypeSourceInfo *TInfo,
2231 QualType resultType, SourceLocation op,
2232 SourceLocation rp) :
2233 Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary,
2234 false, // Never type-dependent (C++ [temp.dep.expr]p3).
2235 // Value-dependent if the argument is type-dependent.
2236 TInfo->getType()->isDependentType(),
2237 TInfo->getType()->isInstantiationDependentType(),
2238 TInfo->getType()->containsUnexpandedParameterPack()),
2239 OpLoc(op), RParenLoc(rp) {
2240 UnaryExprOrTypeTraitExprBits.Kind = ExprKind;
2241 UnaryExprOrTypeTraitExprBits.IsType = true;
2242 Argument.Ty = TInfo;
2243 }
2244
2245 UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, Expr *E,
2246 QualType resultType, SourceLocation op,
2247 SourceLocation rp);
2248
2249 /// Construct an empty sizeof/alignof expression.
2250 explicit UnaryExprOrTypeTraitExpr(EmptyShell Empty)
2251 : Expr(UnaryExprOrTypeTraitExprClass, Empty) { }
2252
2253 UnaryExprOrTypeTrait getKind() const {
2254 return static_cast<UnaryExprOrTypeTrait>(UnaryExprOrTypeTraitExprBits.Kind);
2255 }
2256 void setKind(UnaryExprOrTypeTrait K) { UnaryExprOrTypeTraitExprBits.Kind = K;}
2257
2258 bool isArgumentType() const { return UnaryExprOrTypeTraitExprBits.IsType; }
2259 QualType getArgumentType() const {
2260 return getArgumentTypeInfo()->getType();
2261 }
2262 TypeSourceInfo *getArgumentTypeInfo() const {
2263 assert(isArgumentType() && "calling getArgumentType() when arg is expr");
2264 return Argument.Ty;
2265 }
2266 Expr *getArgumentExpr() {
2267 assert(!isArgumentType() && "calling getArgumentExpr() when arg is type");
2268 return static_cast<Expr*>(Argument.Ex);
2269 }
2270 const Expr *getArgumentExpr() const {
2271 return const_cast<UnaryExprOrTypeTraitExpr*>(this)->getArgumentExpr();
2272 }
2273
2274 void setArgument(Expr *E) {
2275 Argument.Ex = E;
2276 UnaryExprOrTypeTraitExprBits.IsType = false;
2277 }
2278 void setArgument(TypeSourceInfo *TInfo) {
2279 Argument.Ty = TInfo;
2280 UnaryExprOrTypeTraitExprBits.IsType = true;
2281 }
2282
2283 /// Gets the argument type, or the type of the argument expression, whichever
2284 /// is appropriate.
2285 QualType getTypeOfArgument() const {
2286 return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType();
2287 }
2288
2289 SourceLocation getOperatorLoc() const { return OpLoc; }
2290 void setOperatorLoc(SourceLocation L) { OpLoc = L; }
2291
2292 SourceLocation getRParenLoc() const { return RParenLoc; }
2293 void setRParenLoc(SourceLocation L) { RParenLoc = L; }
2294
2295 SourceLocation getBeginLoc() const LLVM_READONLY { return OpLoc; }
2296 SourceLocation getEndLoc() const LLVM_READONLY { return RParenLoc; }
2297
2298 static bool classof(const Stmt *T) {
2299 return T->getStmtClass() == UnaryExprOrTypeTraitExprClass;
2300 }
2301
2302 // Iterators
2303 child_range children();
2304 const_child_range children() const;
2305 };
2306
2307 //===----------------------------------------------------------------------===//
2308 // Postfix Operators.
2309 //===----------------------------------------------------------------------===//
2310
2311 /// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting.
2312 class ArraySubscriptExpr : public Expr {
2313 enum { LHS, RHS, END_EXPR };
2314 Stmt *SubExprs[END_EXPR];
2315
2316 bool lhsIsBase() const { return getRHS()->getType()->isIntegerType(); }
2317
2318 public:
2319 ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t,
2320 ExprValueKind VK, ExprObjectKind OK,
2321 SourceLocation rbracketloc)
2322 : Expr(ArraySubscriptExprClass, t, VK, OK,
2323 lhs->isTypeDependent() || rhs->isTypeDependent(),
2324 lhs->isValueDependent() || rhs->isValueDependent(),
2325 (lhs->isInstantiationDependent() ||
2326 rhs->isInstantiationDependent()),
2327 (lhs->containsUnexpandedParameterPack() ||
2328 rhs->containsUnexpandedParameterPack())) {
2329 SubExprs[LHS] = lhs;
2330 SubExprs[RHS] = rhs;
2331 ArraySubscriptExprBits.RBracketLoc = rbracketloc;
2332 }
2333
2334 /// Create an empty array subscript expression.
2335 explicit ArraySubscriptExpr(EmptyShell Shell)
2336 : Expr(ArraySubscriptExprClass, Shell) { }
2337
2338 /// An array access can be written A[4] or 4[A] (both are equivalent).
2339 /// - getBase() and getIdx() always present the normalized view: A[4].
2340 /// In this case getBase() returns "A" and getIdx() returns "4".
2341 /// - getLHS() and getRHS() present the syntactic view. e.g. for
2342 /// 4[A] getLHS() returns "4".
2343 /// Note: Because vector element access is also written A[4] we must
2344 /// predicate the format conversion in getBase and getIdx only on the
2345 /// the type of the RHS, as it is possible for the LHS to be a vector of
2346 /// integer type
2347 Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); }
2348 const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); }
2349 void setLHS(Expr *E) { SubExprs[LHS] = E; }
2350
2351 Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); }
2352 const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); }
2353 void setRHS(Expr *E) { SubExprs[RHS] = E; }
2354
2355 Expr *getBase() { return lhsIsBase() ? getLHS() : getRHS(); }
2356 const Expr *getBase() const { return lhsIsBase() ? getLHS() : getRHS(); }
2357
2358 Expr *getIdx() { return lhsIsBase() ? getRHS() : getLHS(); }
2359 const Expr *getIdx() const { return lhsIsBase() ? getRHS() : getLHS(); }
2360
2361 SourceLocation getBeginLoc() const LLVM_READONLY {
2362 return getLHS()->getBeginLoc();
2363 }
2364 SourceLocation getEndLoc() const { return getRBracketLoc(); }
2365
2366 SourceLocation getRBracketLoc() const {
2367 return ArraySubscriptExprBits.RBracketLoc;
2368 }
2369 void setRBracketLoc(SourceLocation L) {
2370 ArraySubscriptExprBits.RBracketLoc = L;
2371 }
2372
2373 SourceLocation getExprLoc() const LLVM_READONLY {
2374 return getBase()->getExprLoc();
2375 }
2376
2377 static bool classof(const Stmt *T) {
2378 return T->getStmtClass() == ArraySubscriptExprClass;
2379 }
2380
2381 // Iterators
2382 child_range children() {
2383 return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR);
2384 }
2385 const_child_range children() const {
2386 return const_child_range(&SubExprs[0], &SubExprs[0] + END_EXPR);
2387 }
2388 };
2389
2390 /// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]).
2391 /// CallExpr itself represents a normal function call, e.g., "f(x, 2)",
2392 /// while its subclasses may represent alternative syntax that (semantically)
2393 /// results in a function call. For example, CXXOperatorCallExpr is
2394 /// a subclass for overloaded operator calls that use operator syntax, e.g.,
2395 /// "str1 + str2" to resolve to a function call.
2396 class CallExpr : public Expr {
2397 enum { FN = 0, PREARGS_START = 1 };
2398
2399 /// The number of arguments in the call expression.
2400 unsigned NumArgs;
2401
2402 /// The location of the right parenthese. This has a different meaning for
2403 /// the derived classes of CallExpr.
2404 SourceLocation RParenLoc;
2405
2406 void updateDependenciesFromArg(Expr *Arg);
2407
2408 // CallExpr store some data in trailing objects. However since CallExpr
2409 // is used a base of other expression classes we cannot use
2410 // llvm::TrailingObjects. Instead we manually perform the pointer arithmetic
2411 // and casts.
2412 //
2413 // The trailing objects are in order:
2414 //
2415 // * A single "Stmt *" for the callee expression.
2416 //
2417 // * An array of getNumPreArgs() "Stmt *" for the pre-argument expressions.
2418 //
2419 // * An array of getNumArgs() "Stmt *" for the argument expressions.
2420 //
2421 // Note that we store the offset in bytes from the this pointer to the start
2422 // of the trailing objects. It would be perfectly possible to compute it
2423 // based on the dynamic kind of the CallExpr. However 1.) we have plenty of
2424 // space in the bit-fields of Stmt. 2.) It was benchmarked to be faster to
2425 // compute this once and then load the offset from the bit-fields of Stmt,
2426 // instead of re-computing the offset each time the trailing objects are
2427 // accessed.
2428
2429 /// Return a pointer to the start of the trailing array of "Stmt *".
2430 Stmt **getTrailingStmts() {
2431 return reinterpret_cast<Stmt **>(reinterpret_cast<char *>(this) +
2432 CallExprBits.OffsetToTrailingObjects);
2433 }
2434 Stmt *const *getTrailingStmts() const {
2435 return const_cast<CallExpr *>(this)->getTrailingStmts();
2436 }
2437
2438 /// Map a statement class to the appropriate offset in bytes from the
2439 /// this pointer to the trailing objects.
2440 static unsigned offsetToTrailingObjects(StmtClass SC);
2441
2442 public:
2443 enum class ADLCallKind : bool { NotADL, UsesADL };
2444 static constexpr ADLCallKind NotADL = ADLCallKind::NotADL;
2445 static constexpr ADLCallKind UsesADL = ADLCallKind::UsesADL;
2446
2447 protected:
2448 /// Build a call expression, assuming that appropriate storage has been
2449 /// allocated for the trailing objects.
2450 CallExpr(StmtClass SC, Expr *Fn, ArrayRef<Expr *> PreArgs,
2451 ArrayRef<Expr *> Args, QualType Ty, ExprValueKind VK,
2452 SourceLocation RParenLoc, unsigned MinNumArgs, ADLCallKind UsesADL);
2453
2454 /// Build an empty call expression, for deserialization.
2455 CallExpr(StmtClass SC, unsigned NumPreArgs, unsigned NumArgs,
2456 EmptyShell Empty);
2457
2458 /// Return the size in bytes needed for the trailing objects.
2459 /// Used by the derived classes to allocate the right amount of storage.
2460 static unsigned sizeOfTrailingObjects(unsigned NumPreArgs, unsigned NumArgs) {
2461 return (1 + NumPreArgs + NumArgs) * sizeof(Stmt *);
2462 }
2463
2464 Stmt *getPreArg(unsigned I) {
2465 assert(I < getNumPreArgs() && "Prearg access out of range!");
2466 return getTrailingStmts()[PREARGS_START + I];
2467 }
2468 const Stmt *getPreArg(unsigned I) const {
2469 assert(I < getNumPreArgs() && "Prearg access out of range!");
2470 return getTrailingStmts()[PREARGS_START + I];
2471 }
2472 void setPreArg(unsigned I, Stmt *PreArg) {
2473 assert(I < getNumPreArgs() && "Prearg access out of range!");
2474 getTrailingStmts()[PREARGS_START + I] = PreArg;
2475 }
2476
2477 unsigned getNumPreArgs() const { return CallExprBits.NumPreArgs; }
2478
2479 public:
2480 /// Create a call expression. Fn is the callee expression, Args is the
2481 /// argument array, Ty is the type of the call expression (which is *not*
2482 /// the return type in general), VK is the value kind of the call expression
2483 /// (lvalue, rvalue, ...), and RParenLoc is the location of the right
2484 /// parenthese in the call expression. MinNumArgs specifies the minimum
2485 /// number of arguments. The actual number of arguments will be the greater
2486 /// of Args.size() and MinNumArgs. This is used in a few places to allocate
2487 /// enough storage for the default arguments. UsesADL specifies whether the
2488 /// callee was found through argument-dependent lookup.
2489 ///
2490 /// Note that you can use CreateTemporary if you need a temporary call
2491 /// expression on the stack.
2492 static CallExpr *Create(const ASTContext &Ctx, Expr *Fn,
2493 ArrayRef<Expr *> Args, QualType Ty, ExprValueKind VK,
2494 SourceLocation RParenLoc, unsigned MinNumArgs = 0,
2495 ADLCallKind UsesADL = NotADL);
2496
2497 /// Create a temporary call expression with no arguments in the memory
2498 /// pointed to by Mem. Mem must points to at least sizeof(CallExpr)
2499 /// + sizeof(Stmt *) bytes of storage, aligned to alignof(CallExpr):
2500 ///
2501 /// \code{.cpp}
2502 /// llvm::AlignedCharArray<alignof(CallExpr),
2503 /// sizeof(CallExpr) + sizeof(Stmt *)> Buffer;
2504 /// CallExpr *TheCall = CallExpr::CreateTemporary(Buffer.buffer, etc);
2505 /// \endcode
2506 static CallExpr *CreateTemporary(void *Mem, Expr *Fn, QualType Ty,
2507 ExprValueKind VK, SourceLocation RParenLoc,
2508 ADLCallKind UsesADL = NotADL);
2509
2510 /// Create an empty call expression, for deserialization.
2511 static CallExpr *CreateEmpty(const ASTContext &Ctx, unsigned NumArgs,
2512 EmptyShell Empty);
2513
2514 Expr *getCallee() { return cast<Expr>(getTrailingStmts()[FN]); }
2515 const Expr *getCallee() const { return cast<Expr>(getTrailingStmts()[FN]); }
2516 void setCallee(Expr *F) { getTrailingStmts()[FN] = F; }
2517
2518 ADLCallKind getADLCallKind() const {
2519 return static_cast<ADLCallKind>(CallExprBits.UsesADL);
2520 }
2521 void setADLCallKind(ADLCallKind V = UsesADL) {
2522 CallExprBits.UsesADL = static_cast<bool>(V);
2523 }
2524 bool usesADL() const { return getADLCallKind() == UsesADL; }
2525
2526 Decl *getCalleeDecl() { return getCallee()->getReferencedDeclOfCallee(); }
2527 const Decl *getCalleeDecl() const {
2528 return getCallee()->getReferencedDeclOfCallee();
2529 }
2530
2531 /// If the callee is a FunctionDecl, return it. Otherwise return null.
2532 FunctionDecl *getDirectCallee() {
2533 return dyn_cast_or_null<FunctionDecl>(getCalleeDecl());
2534 }
2535 const FunctionDecl *getDirectCallee() const {
2536 return dyn_cast_or_null<FunctionDecl>(getCalleeDecl());
2537 }
2538
2539 /// getNumArgs - Return the number of actual arguments to this call.
2540 unsigned getNumArgs() const { return NumArgs; }
2541
2542 /// Retrieve the call arguments.
2543 Expr **getArgs() {
2544 return reinterpret_cast<Expr **>(getTrailingStmts() + PREARGS_START +
2545 getNumPreArgs());
2546 }
2547 const Expr *const *getArgs() const {
2548 return reinterpret_cast<const Expr *const *>(
2549 getTrailingStmts() + PREARGS_START + getNumPreArgs());
2550 }
2551
2552 /// getArg - Return the specified argument.
2553 Expr *getArg(unsigned Arg) {
2554 assert(Arg < getNumArgs() && "Arg access out of range!");
2555 return getArgs()[Arg];
2556 }
2557 const Expr *getArg(unsigned Arg) const {
2558 assert(Arg < getNumArgs() && "Arg access out of range!");
2559 return getArgs()[Arg];
2560 }
2561
2562 /// setArg - Set the specified argument.
2563 void setArg(unsigned Arg, Expr *ArgExpr) {
2564 assert(Arg < getNumArgs() && "Arg access out of range!");
2565 getArgs()[Arg] = ArgExpr;
2566 }
2567
2568 /// Reduce the number of arguments in this call expression. This is used for
2569 /// example during error recovery to drop extra arguments. There is no way
2570 /// to perform the opposite because: 1.) We don't track how much storage
2571 /// we have for the argument array 2.) This would potentially require growing
2572 /// the argument array, something we cannot support since the arguments are
2573 /// stored in a trailing array.
2574 void shrinkNumArgs(unsigned NewNumArgs) {
2575 assert((NewNumArgs <= getNumArgs()) &&
2576 "shrinkNumArgs cannot increase the number of arguments!");
2577 NumArgs = NewNumArgs;
2578 }
2579
2580 typedef ExprIterator arg_iterator;
2581 typedef ConstExprIterator const_arg_iterator;
2582 typedef llvm::iterator_range<arg_iterator> arg_range;
2583 typedef llvm::iterator_range<const_arg_iterator> const_arg_range;
2584
2585 arg_range arguments() { return arg_range(arg_begin(), arg_end()); }
2586 const_arg_range arguments() const {
2587 return const_arg_range(arg_begin(), arg_end());
2588 }
2589
2590 arg_iterator arg_begin() {
2591 return getTrailingStmts() + PREARGS_START + getNumPreArgs();
2592 }
2593 arg_iterator arg_end() { return arg_begin() + getNumArgs(); }
2594
2595 const_arg_iterator arg_begin() const {
2596 return getTrailingStmts() + PREARGS_START + getNumPreArgs();
2597 }
2598 const_arg_iterator arg_end() const { return arg_begin() + getNumArgs(); }
2599
2600 /// This method provides fast access to all the subexpressions of
2601 /// a CallExpr without going through the slower virtual child_iterator
2602 /// interface. This provides efficient reverse iteration of the
2603 /// subexpressions. This is currently used for CFG construction.
2604 ArrayRef<Stmt *> getRawSubExprs() {
2605 return llvm::makeArrayRef(getTrailingStmts(),
2606 PREARGS_START + getNumPreArgs() + getNumArgs());
2607 }
2608
2609 /// getNumCommas - Return the number of commas that must have been present in
2610 /// this function call.
2611 unsigned getNumCommas() const { return getNumArgs() ? getNumArgs() - 1 : 0; }
2612
2613 /// getBuiltinCallee - If this is a call to a builtin, return the builtin ID
2614 /// of the callee. If not, return 0.
2615 unsigned getBuiltinCallee() const;
2616
2617 /// Returns \c true if this is a call to a builtin which does not
2618 /// evaluate side-effects within its arguments.
2619 bool isUnevaluatedBuiltinCall(const ASTContext &Ctx) const;
2620
2621 /// getCallReturnType - Get the return type of the call expr. This is not
2622 /// always the type of the expr itself, if the return type is a reference
2623 /// type.
2624 QualType getCallReturnType(const ASTContext &Ctx) const;
2625
2626 /// Returns the WarnUnusedResultAttr that is either declared on the called
2627 /// function, or its return type declaration.
2628 const Attr *getUnusedResultAttr(const ASTContext &Ctx) const;
2629
2630 /// Returns true if this call expression should warn on unused results.
2631 bool hasUnusedResultAttr(const ASTContext &Ctx) const {
2632 return getUnusedResultAttr(Ctx) != nullptr;
2633 }
2634
2635 SourceLocation getRParenLoc() const { return RParenLoc; }
2636 void setRParenLoc(SourceLocation L) { RParenLoc = L; }
2637
2638 SourceLocation getBeginLoc() const LLVM_READONLY;
2639 SourceLocation getEndLoc() const LLVM_READONLY;
2640
2641 /// Return true if this is a call to __assume() or __builtin_assume() with
2642 /// a non-value-dependent constant parameter evaluating as false.
2643 bool isBuiltinAssumeFalse(const ASTContext &Ctx) const;
2644
2645 bool isCallToStdMove() const {
2646 const FunctionDecl *FD = getDirectCallee();
2647 return getNumArgs() == 1 && FD && FD->isInStdNamespace() &&
2648 FD->getIdentifier() && FD->getIdentifier()->isStr("move");
2649 }
2650
2651 static bool classof(const Stmt *T) {
2652 return T->getStmtClass() >= firstCallExprConstant &&
2653 T->getStmtClass() <= lastCallExprConstant;
2654 }
2655
2656 // Iterators
2657 child_range children() {
2658 return child_range(getTrailingStmts(), getTrailingStmts() + PREARGS_START +
2659 getNumPreArgs() + getNumArgs());
2660 }
2661
2662 const_child_range children() const {
2663 return const_child_range(getTrailingStmts(),
2664 getTrailingStmts() + PREARGS_START +
2665 getNumPreArgs() + getNumArgs());
2666 }
2667 };
2668
2669 /// Extra data stored in some MemberExpr objects.
2670 struct MemberExprNameQualifier {
2671 /// The nested-name-specifier that qualifies the name, including
2672 /// source-location information.
2673 NestedNameSpecifierLoc QualifierLoc;
2674
2675 /// The DeclAccessPair through which the MemberDecl was found due to
2676 /// name qualifiers.
2677 DeclAccessPair FoundDecl;
2678 };
2679
2680 /// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F.
2681 ///
2682 class MemberExpr final
2683 : public Expr,
2684 private llvm::TrailingObjects<MemberExpr, MemberExprNameQualifier,
2685 ASTTemplateKWAndArgsInfo,
2686 TemplateArgumentLoc> {
2687 friend class ASTReader;
2688 friend class ASTStmtWriter;
2689 friend TrailingObjects;
2690
2691 /// Base - the expression for the base pointer or structure references. In
2692 /// X.F, this is "X".
2693 Stmt *Base;
2694
2695 /// MemberDecl - This is the decl being referenced by the field/member name.
2696 /// In X.F, this is the decl referenced by F.
2697 ValueDecl *MemberDecl;
2698
2699 /// MemberDNLoc - Provides source/type location info for the
2700 /// declaration name embedded in MemberDecl.
2701 DeclarationNameLoc MemberDNLoc;
2702
2703 /// MemberLoc - This is the location of the member name.
2704 SourceLocation MemberLoc;
2705
2706 size_t numTrailingObjects(OverloadToken<MemberExprNameQualifier>) const {
2707 return hasQualifierOrFoundDecl();
2708 }
2709
2710 size_t numTrailingObjects(OverloadToken<ASTTemplateKWAndArgsInfo>) const {
2711 return hasTemplateKWAndArgsInfo();
2712 }
2713
2714 bool hasQualifierOrFoundDecl() const {
2715 return MemberExprBits.HasQualifierOrFoundDecl;
2716 }
2717
2718 bool hasTemplateKWAndArgsInfo() const {
2719 return MemberExprBits.HasTemplateKWAndArgsInfo;
2720 }
2721
2722 public:
2723 MemberExpr(Expr *base, bool isarrow, SourceLocation operatorloc,
2724 ValueDecl *memberdecl, const DeclarationNameInfo &NameInfo,
2725 QualType ty, ExprValueKind VK, ExprObjectKind OK)
2726 : Expr(MemberExprClass, ty, VK, OK, base->isTypeDependent(),
2727 base->isValueDependent(), base->isInstantiationDependent(),
2728 base->containsUnexpandedParameterPack()),
2729 Base(base), MemberDecl(memberdecl), MemberDNLoc(NameInfo.getInfo()),
2730 MemberLoc(NameInfo.getLoc()) {
2731 assert(memberdecl->getDeclName() == NameInfo.getName());
2732 MemberExprBits.IsArrow = isarrow;
2733 MemberExprBits.HasQualifierOrFoundDecl = false;
2734 MemberExprBits.HasTemplateKWAndArgsInfo = false;
2735 MemberExprBits.HadMultipleCandidates = false;
2736 MemberExprBits.OperatorLoc = operatorloc;
2737 }
2738
2739 // NOTE: this constructor should be used only when it is known that
2740 // the member name can not provide additional syntactic info
2741 // (i.e., source locations for C++ operator names or type source info
2742 // for constructors, destructors and conversion operators).
2743 MemberExpr(Expr *base, bool isarrow, SourceLocation operatorloc,
2744 ValueDecl *memberdecl, SourceLocation l, QualType ty,
2745 ExprValueKind VK, ExprObjectKind OK)
2746 : Expr(MemberExprClass, ty, VK, OK, base->isTypeDependent(),
2747 base->isValueDependent(), base->isInstantiationDependent(),
2748 base->containsUnexpandedParameterPack()),
2749 Base(base), MemberDecl(memberdecl), MemberDNLoc(), MemberLoc(l) {
2750 MemberExprBits.IsArrow = isarrow;
2751 MemberExprBits.HasQualifierOrFoundDecl = false;
2752 MemberExprBits.HasTemplateKWAndArgsInfo = false;
2753 MemberExprBits.HadMultipleCandidates = false;
2754 MemberExprBits.OperatorLoc = operatorloc;
2755 }
2756
2757 static MemberExpr *Create(const ASTContext &C, Expr *base, bool isarrow,
2758 SourceLocation OperatorLoc,
2759 NestedNameSpecifierLoc QualifierLoc,
2760 SourceLocation TemplateKWLoc, ValueDecl *memberdecl,
2761 DeclAccessPair founddecl,
2762 DeclarationNameInfo MemberNameInfo,
2763 const TemplateArgumentListInfo *targs, QualType ty,
2764 ExprValueKind VK, ExprObjectKind OK);
2765
2766 void setBase(Expr *E) { Base = E; }
2767 Expr *getBase() const { return cast<Expr>(Base); }
2768
2769 /// Retrieve the member declaration to which this expression refers.
2770 ///
2771 /// The returned declaration will be a FieldDecl or (in C++) a VarDecl (for
2772 /// static data members), a CXXMethodDecl, or an EnumConstantDecl.
2773 ValueDecl *getMemberDecl() const { return MemberDecl; }
2774 void setMemberDecl(ValueDecl *D) { MemberDecl = D; }
2775
2776 /// Retrieves the declaration found by lookup.
2777 DeclAccessPair getFoundDecl() const {
2778 if (!hasQualifierOrFoundDecl())
2779 return DeclAccessPair::make(getMemberDecl(),
2780 getMemberDecl()->getAccess());
2781 return getTrailingObjects<MemberExprNameQualifier>()->FoundDecl;
2782 }
2783
2784 /// Determines whether this member expression actually had
2785 /// a C++ nested-name-specifier prior to the name of the member, e.g.,
2786 /// x->Base::foo.
2787 bool hasQualifier() const { return getQualifier() != nullptr; }
2788
2789 /// If the member name was qualified, retrieves the
2790 /// nested-name-specifier that precedes the member name, with source-location
2791 /// information.
2792 NestedNameSpecifierLoc getQualifierLoc() const {
2793 if (!hasQualifierOrFoundDecl())
2794 return NestedNameSpecifierLoc();
2795 return getTrailingObjects<MemberExprNameQualifier>()->QualifierLoc;
2796 }
2797
2798 /// If the member name was qualified, retrieves the
2799 /// nested-name-specifier that precedes the member name. Otherwise, returns
2800 /// NULL.
2801 NestedNameSpecifier *getQualifier() const {
2802 return getQualifierLoc().getNestedNameSpecifier();
2803 }
2804
2805 /// Retrieve the location of the template keyword preceding
2806 /// the member name, if any.
2807 SourceLocation getTemplateKeywordLoc() const {
2808 if (!hasTemplateKWAndArgsInfo())
2809 return SourceLocation();
2810 return getTrailingObjects<ASTTemplateKWAndArgsInfo>()->TemplateKWLoc;
2811 }
2812
2813 /// Retrieve the location of the left angle bracket starting the
2814 /// explicit template argument list following the member name, if any.
2815 SourceLocation getLAngleLoc() const {
2816 if (!hasTemplateKWAndArgsInfo())
2817 return SourceLocation();
2818 return getTrailingObjects<ASTTemplateKWAndArgsInfo>()->LAngleLoc;
2819 }
2820
2821 /// Retrieve the location of the right angle bracket ending the
2822 /// explicit template argument list following the member name, if any.
2823 SourceLocation getRAngleLoc() const {
2824 if (!hasTemplateKWAndArgsInfo())
2825 return SourceLocation();
2826 return getTrailingObjects<ASTTemplateKWAndArgsInfo>()->RAngleLoc;
2827 }
2828
2829 /// Determines whether the member name was preceded by the template keyword.
2830 bool hasTemplateKeyword() const { return getTemplateKeywordLoc().isValid(); }
2831
2832 /// Determines whether the member name was followed by an
2833 /// explicit template argument list.
2834 bool hasExplicitTemplateArgs() const { return getLAngleLoc().isValid(); }
2835
2836 /// Copies the template arguments (if present) into the given
2837 /// structure.
2838 void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const {
2839 if (hasExplicitTemplateArgs())
2840 getTrailingObjects<ASTTemplateKWAndArgsInfo>()->copyInto(
2841 getTrailingObjects<TemplateArgumentLoc>(), List);
2842 }
2843
2844 /// Retrieve the template arguments provided as part of this
2845 /// template-id.
2846 const TemplateArgumentLoc *getTemplateArgs() const {
2847 if (!hasExplicitTemplateArgs())
2848 return nullptr;
2849
2850 return getTrailingObjects<TemplateArgumentLoc>();
2851 }
2852
2853 /// Retrieve the number of template arguments provided as part of this
2854 /// template-id.
2855 unsigned getNumTemplateArgs() const {
2856 if (!hasExplicitTemplateArgs())
2857 return 0;
2858
2859 return getTrailingObjects<ASTTemplateKWAndArgsInfo>()->NumTemplateArgs;
2860 }
2861
2862 ArrayRef<TemplateArgumentLoc> template_arguments() const {
2863 return {getTemplateArgs(), getNumTemplateArgs()};
2864 }
2865
2866 /// Retrieve the member declaration name info.
2867 DeclarationNameInfo getMemberNameInfo() const {
2868 return DeclarationNameInfo(MemberDecl->getDeclName(),
2869 MemberLoc, MemberDNLoc);
2870 }
2871
2872 SourceLocation getOperatorLoc() const { return MemberExprBits.OperatorLoc; }
2873
2874 bool isArrow() const { return MemberExprBits.IsArrow; }
2875 void setArrow(bool A) { MemberExprBits.IsArrow = A; }
2876
2877 /// getMemberLoc - Return the location of the "member", in X->F, it is the
2878 /// location of 'F'.
2879 SourceLocation getMemberLoc() const { return MemberLoc; }
2880 void setMemberLoc(SourceLocation L) { MemberLoc = L; }
2881
2882 SourceLocation getBeginLoc() const LLVM_READONLY;
2883 SourceLocation getEndLoc() const LLVM_READONLY;
2884
2885 SourceLocation getExprLoc() const LLVM_READONLY { return MemberLoc; }
2886
2887 /// Determine whether the base of this explicit is implicit.
2888 bool isImplicitAccess() const {
2889 return getBase() && getBase()->isImplicitCXXThis();
2890 }
2891
2892 /// Returns true if this member expression refers to a method that
2893 /// was resolved from an overloaded set having size greater than 1.
2894 bool hadMultipleCandidates() const {
2895 return MemberExprBits.HadMultipleCandidates;
2896 }
2897 /// Sets the flag telling whether this expression refers to
2898 /// a method that was resolved from an overloaded set having size
2899 /// greater than 1.
2900 void setHadMultipleCandidates(bool V = true) {
2901 MemberExprBits.HadMultipleCandidates = V;
2902 }
2903
2904 /// Returns true if virtual dispatch is performed.
2905 /// If the member access is fully qualified, (i.e. X::f()), virtual
2906 /// dispatching is not performed. In -fapple-kext mode qualified
2907 /// calls to virtual method will still go through the vtable.
2908 bool performsVirtualDispatch(const LangOptions &LO) const {
2909 return LO.AppleKext || !hasQualifier();
2910 }
2911
2912 static bool classof(const Stmt *T) {
2913 return T->getStmtClass() == MemberExprClass;
2914 }
2915
2916 // Iterators
2917 child_range children() { return child_range(&Base, &Base+1); }
2918 const_child_range children() const {
2919 return const_child_range(&Base, &Base + 1);
2920 }
2921 };
2922
2923 /// CompoundLiteralExpr - [C99 6.5.2.5]
2924 ///
2925 class CompoundLiteralExpr : public Expr {
2926 /// LParenLoc - If non-null, this is the location of the left paren in a
2927 /// compound literal like "(int){4}". This can be null if this is a
2928 /// synthesized compound expression.
2929 SourceLocation LParenLoc;
2930
2931 /// The type as written. This can be an incomplete array type, in
2932 /// which case the actual expression type will be different.
2933 /// The int part of the pair stores whether this expr is file scope.
2934 llvm::PointerIntPair<TypeSourceInfo *, 1, bool> TInfoAndScope;
2935 Stmt *Init;
2936 public:
2937 CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo,
2938 QualType T, ExprValueKind VK, Expr *init, bool fileScope)
2939 : Expr(CompoundLiteralExprClass, T, VK, OK_Ordinary,
2940 tinfo->getType()->isDependentType(),
2941 init->isValueDependent(),
2942 (init->isInstantiationDependent() ||
2943 tinfo->getType()->isInstantiationDependentType()),
2944 init->containsUnexpandedParameterPack()),
2945 LParenLoc(lparenloc), TInfoAndScope(tinfo, fileScope), Init(init) {}
2946
2947 /// Construct an empty compound literal.
2948 explicit CompoundLiteralExpr(EmptyShell Empty)
2949 : Expr(CompoundLiteralExprClass, Empty) { }
2950
2951 const Expr *getInitializer() const { return cast<Expr>(Init); }
2952 Expr *getInitializer() { return cast<Expr>(Init); }
2953 void setInitializer(Expr *E) { Init = E; }
2954
2955 bool isFileScope() const { return TInfoAndScope.getInt(); }
2956 void setFileScope(bool FS) { TInfoAndScope.setInt(FS); }
2957
2958 SourceLocation getLParenLoc() const { return LParenLoc; }
2959 void setLParenLoc(SourceLocation L) { LParenLoc = L; }
2960
2961 TypeSourceInfo *getTypeSourceInfo() const {
2962 return TInfoAndScope.getPointer();
2963 }
2964 void setTypeSourceInfo(TypeSourceInfo *tinfo) {
2965 TInfoAndScope.setPointer(tinfo);
2966 }
2967
2968 SourceLocation getBeginLoc() const LLVM_READONLY {
2969 // FIXME: Init should never be null.
2970 if (!Init)
2971 return SourceLocation();
2972 if (LParenLoc.isInvalid())
2973 return Init->getBeginLoc();
2974 return LParenLoc;
2975 }
2976 SourceLocation getEndLoc() const LLVM_READONLY {
2977 // FIXME: Init should never be null.
2978 if (!Init)
2979 return SourceLocation();
2980 return Init->getEndLoc();
2981 }
2982
2983 static bool classof(const Stmt *T) {
2984 return T->getStmtClass() == CompoundLiteralExprClass;
2985 }
2986
2987 // Iterators
2988 child_range children() { return child_range(&Init, &Init+1); }
2989 const_child_range children() const {
2990 return const_child_range(&Init, &Init + 1);
2991 }
2992 };
2993
2994 /// CastExpr - Base class for type casts, including both implicit
2995 /// casts (ImplicitCastExpr) and explicit casts that have some
2996 /// representation in the source code (ExplicitCastExpr's derived
2997 /// classes).
2998 class CastExpr : public Expr {
2999 Stmt *Op;
3000
3001 bool CastConsistency() const;
3002
3003 const CXXBaseSpecifier * const *path_buffer() const {
3004 return const_cast<CastExpr*>(this)->path_buffer();
3005 }
3006 CXXBaseSpecifier **path_buffer();
3007
3008 protected:
3009 CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, const CastKind kind,
3010 Expr *op, unsigned BasePathSize)
3011 : Expr(SC, ty, VK, OK_Ordinary,
3012 // Cast expressions are type-dependent if the type is
3013 // dependent (C++ [temp.dep.expr]p3).
3014 ty->isDependentType(),
3015 // Cast expressions are value-dependent if the type is
3016 // dependent or if the subexpression is value-dependent.
3017 ty->isDependentType() || (op && op->isValueDependent()),
3018 (ty->isInstantiationDependentType() ||
3019 (op && op->isInstantiationDependent())),
3020 // An implicit cast expression doesn't (lexically) contain an
3021 // unexpanded pack, even if its target type does.
3022 ((SC != ImplicitCastExprClass &&
3023 ty->containsUnexpandedParameterPack()) ||
3024 (op && op->containsUnexpandedParameterPack()))),
3025 Op(op) {
3026 CastExprBits.Kind = kind;
3027 CastExprBits.PartOfExplicitCast = false;
3028 CastExprBits.BasePathSize = BasePathSize;
3029 assert((CastExprBits.BasePathSize == BasePathSize) &&
3030 "BasePathSize overflow!");
3031 assert(CastConsistency());
3032 }
3033
3034 /// Construct an empty cast.
3035 CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize)
3036 : Expr(SC, Empty) {
3037 CastExprBits.PartOfExplicitCast = false;
3038 CastExprBits.BasePathSize = BasePathSize;
3039 assert((CastExprBits.BasePathSize == BasePathSize) &&
3040 "BasePathSize overflow!");
3041 }
3042
3043 public:
3044 CastKind getCastKind() const { return (CastKind) CastExprBits.Kind; }
3045 void setCastKind(CastKind K) { CastExprBits.Kind = K; }
3046
3047 static const char *getCastKindName(CastKind CK);
3048 const char *getCastKindName() const { return getCastKindName(getCastKind()); }
3049
3050 Expr *getSubExpr() { return cast<Expr>(Op); }
3051 const Expr *getSubExpr() const { return cast<Expr>(Op); }
3052 void setSubExpr(Expr *E) { Op = E; }
3053
3054 /// Retrieve the cast subexpression as it was written in the source
3055 /// code, looking through any implicit casts or other intermediate nodes
3056 /// introduced by semantic analysis.
3057 Expr *getSubExprAsWritten();
3058 const Expr *getSubExprAsWritten() const {
3059 return const_cast<CastExpr *>(this)->getSubExprAsWritten();
3060 }
3061
3062 /// If this cast applies a user-defined conversion, retrieve the conversion
3063 /// function that it invokes.
3064 NamedDecl *getConversionFunction() const;
3065
3066 typedef CXXBaseSpecifier **path_iterator;
3067 typedef const CXXBaseSpecifier *const *path_const_iterator;
3068 bool path_empty() const { return path_size() == 0; }
3069 unsigned path_size() const { return CastExprBits.BasePathSize; }
3070 path_iterator path_begin() { return path_buffer(); }
3071 path_iterator path_end() { return path_buffer() + path_size(); }
3072 path_const_iterator path_begin() const { return path_buffer(); }
3073 path_const_iterator path_end() const { return path_buffer() + path_size(); }
3074
3075 const FieldDecl *getTargetUnionField() const {
3076 assert(getCastKind() == CK_ToUnion);
3077 return getTargetFieldForToUnionCast(getType(), getSubExpr()->getType());
3078 }
3079
3080 static const FieldDecl *getTargetFieldForToUnionCast(QualType unionType,
3081 QualType opType);
3082 static const FieldDecl *getTargetFieldForToUnionCast(const RecordDecl *RD,
3083 QualType opType);
3084
3085 static bool classof(const Stmt *T) {
3086 return T->getStmtClass() >= firstCastExprConstant &&
3087 T->getStmtClass() <= lastCastExprConstant;
3088 }
3089
3090 // Iterators
3091 child_range children() { return child_range(&Op, &Op+1); }
3092 const_child_range children() const { return const_child_range(&Op, &Op + 1); }
3093 };
3094
3095 /// ImplicitCastExpr - Allows us to explicitly represent implicit type
3096 /// conversions, which have no direct representation in the original
3097 /// source code. For example: converting T[]->T*, void f()->void
3098 /// (*f)(), float->double, short->int, etc.
3099 ///
3100 /// In C, implicit casts always produce rvalues. However, in C++, an
3101 /// implicit cast whose result is being bound to a reference will be
3102 /// an lvalue or xvalue. For example:
3103 ///
3104 /// @code
3105 /// class Base { };
3106 /// class Derived : public Base { };
3107 /// Derived &&ref();
3108 /// void f(Derived d) {
3109 /// Base& b = d; // initializer is an ImplicitCastExpr
3110 /// // to an lvalue of type Base
3111 /// Base&& r = ref(); // initializer is an ImplicitCastExpr
3112 /// // to an xvalue of type Base
3113 /// }
3114 /// @endcode
3115 class ImplicitCastExpr final
3116 : public CastExpr,
3117 private llvm::TrailingObjects<ImplicitCastExpr, CXXBaseSpecifier *> {
3118
3119 ImplicitCastExpr(QualType ty, CastKind kind, Expr *op,
3120 unsigned BasePathLength, ExprValueKind VK)
3121 : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, BasePathLength) { }
3122
3123 /// Construct an empty implicit cast.
3124 explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize)
3125 : CastExpr(ImplicitCastExprClass, Shell, PathSize) { }
3126
3127 public:
3128 enum OnStack_t { OnStack };
3129 ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op,
3130 ExprValueKind VK)
3131 : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, 0) {
3132 }
3133
3134 bool isPartOfExplicitCast() const { return CastExprBits.PartOfExplicitCast; }
3135 void setIsPartOfExplicitCast(bool PartOfExplicitCast) {
3136 CastExprBits.PartOfExplicitCast = PartOfExplicitCast;
3137 }
3138
3139 static ImplicitCastExpr *Create(const ASTContext &Context, QualType T,
3140 CastKind Kind, Expr *Operand,
3141 const CXXCastPath *BasePath,
3142 ExprValueKind Cat);
3143
3144 static ImplicitCastExpr *CreateEmpty(const ASTContext &Context,
3145 unsigned PathSize);
3146
3147 SourceLocation getBeginLoc() const LLVM_READONLY {
3148 return getSubExpr()->getBeginLoc();
3149 }
3150 SourceLocation getEndLoc() const LLVM_READONLY {
3151 return getSubExpr()->getEndLoc();
3152 }
3153
3154 static bool classof(const Stmt *T) {
3155 return T->getStmtClass() == ImplicitCastExprClass;
3156 }
3157
3158 friend TrailingObjects;
3159 friend class CastExpr;
3160 };
3161
3162 inline Expr *Expr::IgnoreImpCasts() {
3163 Expr *e = this;
3164 while (true)
3165 if (ImplicitCastExpr *ice = dyn_cast<ImplicitCastExpr>(e))
3166 e = ice->getSubExpr();
3167 else if (FullExpr *fe = dyn_cast<FullExpr>(e))
3168 e = fe->getSubExpr();
3169 else
3170 break;
3171 return e;
3172 }
3173
3174 /// ExplicitCastExpr - An explicit cast written in the source
3175 /// code.
3176 ///
3177 /// This class is effectively an abstract class, because it provides
3178 /// the basic representation of an explicitly-written cast without
3179 /// specifying which kind of cast (C cast, functional cast, static
3180 /// cast, etc.) was written; specific derived classes represent the
3181 /// particular style of cast and its location information.
3182 ///
3183 /// Unlike implicit casts, explicit cast nodes have two different
3184 /// types: the type that was written into the source code, and the
3185 /// actual type of the expression as determined by semantic
3186 /// analysis. These types may differ slightly. For example, in C++ one
3187 /// can cast to a reference type, which indicates that the resulting
3188 /// expression will be an lvalue or xvalue. The reference type, however,
3189 /// will not be used as the type of the expression.
3190 class ExplicitCastExpr : public CastExpr {
3191 /// TInfo - Source type info for the (written) type
3192 /// this expression is casting to.
3193 TypeSourceInfo *TInfo;
3194
3195 protected:
3196 ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK,
3197 CastKind kind, Expr *op, unsigned PathSize,
3198 TypeSourceInfo *writtenTy)
3199 : CastExpr(SC, exprTy, VK, kind, op, PathSize), TInfo(writtenTy) {}
3200
3201 /// Construct an empty explicit cast.
3202 ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize)
3203 : CastExpr(SC, Shell, PathSize) { }
3204
3205 public:
3206 /// getTypeInfoAsWritten - Returns the type source info for the type
3207 /// that this expression is casting to.
3208 TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; }
3209 void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; }
3210
3211 /// getTypeAsWritten - Returns the type that this expression is
3212 /// casting to, as written in the source code.
3213 QualType getTypeAsWritten() const { return TInfo->getType(); }
3214
3215 static bool classof(const Stmt *T) {
3216 return T->getStmtClass() >= firstExplicitCastExprConstant &&
3217 T->getStmtClass() <= lastExplicitCastExprConstant;
3218 }
3219 };
3220
3221 /// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style
3222 /// cast in C++ (C++ [expr.cast]), which uses the syntax
3223 /// (Type)expr. For example: @c (int)f.
3224 class CStyleCastExpr final
3225 : public ExplicitCastExpr,
3226 private llvm::TrailingObjects<CStyleCastExpr, CXXBaseSpecifier *> {
3227 SourceLocation LPLoc; // the location of the left paren
3228 SourceLocation RPLoc; // the location of the right paren
3229
3230 CStyleCastExpr(QualType exprTy, ExprValueKind vk, CastKind kind, Expr *op,
3231 unsigned PathSize, TypeSourceInfo *writtenTy,
3232 SourceLocation l, SourceLocation r)
3233 : ExplicitCastExpr(CStyleCastExprClass, exprTy, vk, kind, op, PathSize,
3234 writtenTy), LPLoc(l), RPLoc(r) {}
3235
3236 /// Construct an empty C-style explicit cast.
3237 explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize)
3238 : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { }
3239
3240 public:
3241 static CStyleCastExpr *Create(const ASTContext &Context, QualType T,
3242 ExprValueKind VK, CastKind K,
3243 Expr *Op, const CXXCastPath *BasePath,
3244 TypeSourceInfo *WrittenTy, SourceLocation L,
3245 SourceLocation R);
3246
3247 static CStyleCastExpr *CreateEmpty(const ASTContext &Context,
3248 unsigned PathSize);
3249
3250 SourceLocation getLParenLoc() const { return LPLoc; }
3251 void setLParenLoc(SourceLocation L) { LPLoc = L; }
3252
3253 SourceLocation getRParenLoc() const { return RPLoc; }
3254 void setRParenLoc(SourceLocation L) { RPLoc = L; }
3255
3256 SourceLocation getBeginLoc() const LLVM_READONLY { return LPLoc; }
3257 SourceLocation getEndLoc() const LLVM_READONLY {
3258 return getSubExpr()->getEndLoc();
3259 }
3260
3261 static bool classof(const Stmt *T) {
3262 return T->getStmtClass() == CStyleCastExprClass;
3263 }
3264
3265 friend TrailingObjects;
3266 friend class CastExpr;
3267 };
3268
3269 /// A builtin binary operation expression such as "x + y" or "x <= y".
3270 ///
3271 /// This expression node kind describes a builtin binary operation,
3272 /// such as "x + y" for integer values "x" and "y". The operands will
3273 /// already have been converted to appropriate types (e.g., by
3274 /// performing promotions or conversions).
3275 ///
3276 /// In C++, where operators may be overloaded, a different kind of
3277 /// expression node (CXXOperatorCallExpr) is used to express the
3278 /// invocation of an overloaded operator with operator syntax. Within
3279 /// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is
3280 /// used to store an expression "x + y" depends on the subexpressions
3281 /// for x and y. If neither x or y is type-dependent, and the "+"
3282 /// operator resolves to a built-in operation, BinaryOperator will be
3283 /// used to express the computation (x and y may still be
3284 /// value-dependent). If either x or y is type-dependent, or if the
3285 /// "+" resolves to an overloaded operator, CXXOperatorCallExpr will
3286 /// be used to express the computation.
3287 class BinaryOperator : public Expr {
3288 enum { LHS, RHS, END_EXPR };
3289 Stmt *SubExprs[END_EXPR];
3290
3291 public:
3292 typedef BinaryOperatorKind Opcode;
3293
3294 BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy,
3295 ExprValueKind VK, ExprObjectKind OK,
3296 SourceLocation opLoc, FPOptions FPFeatures)
3297 : Expr(BinaryOperatorClass, ResTy, VK, OK,
3298 lhs->isTypeDependent() || rhs->isTypeDependent(),
3299 lhs->isValueDependent() || rhs->isValueDependent(),
3300 (lhs->isInstantiationDependent() ||
3301 rhs->isInstantiationDependent()),
3302 (lhs->containsUnexpandedParameterPack() ||
3303 rhs->containsUnexpandedParameterPack())) {
3304 BinaryOperatorBits.Opc = opc;
3305 BinaryOperatorBits.FPFeatures = FPFeatures.getInt();
3306 BinaryOperatorBits.OpLoc = opLoc;
3307 SubExprs[LHS] = lhs;
3308 SubExprs[RHS] = rhs;
3309 assert(!isCompoundAssignmentOp() &&
3310 "Use CompoundAssignOperator for compound assignments");
3311 }
3312
3313 /// Construct an empty binary operator.
3314 explicit BinaryOperator(EmptyShell Empty) : Expr(BinaryOperatorClass, Empty) {
3315 BinaryOperatorBits.Opc = BO_Comma;
3316 }
3317
3318 SourceLocation getExprLoc() const { return getOperatorLoc(); }
3319 SourceLocation getOperatorLoc() const { return BinaryOperatorBits.OpLoc; }
3320 void setOperatorLoc(SourceLocation L) { BinaryOperatorBits.OpLoc = L; }
3321
3322 Opcode getOpcode() const {
3323 return static_cast<Opcode>(BinaryOperatorBits.Opc);
3324 }
3325 void setOpcode(Opcode Opc) { BinaryOperatorBits.Opc = Opc; }
3326
3327 Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); }
3328 void setLHS(Expr *E) { SubExprs[LHS] = E; }
3329 Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); }
3330 void setRHS(Expr *E) { SubExprs[RHS] = E; }
3331
3332 SourceLocation getBeginLoc() const LLVM_READONLY {
3333 return getLHS()->getBeginLoc();
3334 }
3335 SourceLocation getEndLoc() const LLVM_READONLY {
3336 return getRHS()->getEndLoc();
3337 }
3338
3339 /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it
3340 /// corresponds to, e.g. "<<=".
3341 static StringRef getOpcodeStr(Opcode Op);
3342
3343 StringRef getOpcodeStr() const { return getOpcodeStr(getOpcode()); }
3344
3345 /// Retrieve the binary opcode that corresponds to the given
3346 /// overloaded operator.
3347 static Opcode getOverloadedOpcode(OverloadedOperatorKind OO);
3348
3349 /// Retrieve the overloaded operator kind that corresponds to
3350 /// the given binary opcode.
3351 static OverloadedOperatorKind getOverloadedOperator(Opcode Opc);
3352
3353 /// predicates to categorize the respective opcodes.
3354 static bool isPtrMemOp(Opcode Opc) {
3355 return Opc == BO_PtrMemD || Opc == BO_PtrMemI;
3356 }
3357 bool isPtrMemOp() const { return isPtrMemOp(getOpcode()); }
3358
3359 static bool isMultiplicativeOp(Opcode Opc) {
3360 return Opc >= BO_Mul && Opc <= BO_Rem;
3361 }
3362 bool isMultiplicativeOp() const { return isMultiplicativeOp(getOpcode()); }
3363 static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; }
3364 bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); }
3365 static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; }
3366 bool isShiftOp() const { return isShiftOp(getOpcode()); }
3367
3368 static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; }
3369 bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); }
3370
3371 static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; }
3372 bool isRelationalOp() const { return isRelationalOp(getOpcode()); }
3373
3374 static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; }
3375 bool isEqualityOp() const { return isEqualityOp(getOpcode()); }
3376
3377 static bool isComparisonOp(Opcode Opc) { return Opc >= BO_Cmp && Opc<=BO_NE; }
3378 bool isComparisonOp() const { return isComparisonOp(getOpcode()); }
3379
3380 static Opcode negateComparisonOp(Opcode Opc) {
3381 switch (Opc) {
3382 default:
3383 llvm_unreachable("Not a comparison operator.");
3384 case BO_LT: return BO_GE;
3385 case BO_GT: return BO_LE;
3386 case BO_LE: return BO_GT;
3387 case BO_GE: return BO_LT;
3388 case BO_EQ: return BO_NE;
3389 case BO_NE: return BO_EQ;
3390 }
3391 }
3392
3393 static Opcode reverseComparisonOp(Opcode Opc) {
3394 switch (Opc) {
3395 default:
3396 llvm_unreachable("Not a comparison operator.");
3397 case BO_LT: return BO_GT;
3398 case BO_GT: return BO_LT;
3399 case BO_LE: return BO_GE;
3400 case BO_GE: return BO_LE;
3401 case BO_EQ:
3402 case BO_NE:
3403 return Opc;
3404 }
3405 }
3406
3407 static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; }
3408 bool isLogicalOp() const { return isLogicalOp(getOpcode()); }
3409
3410 static bool isAssignmentOp(Opcode Opc) {
3411 return Opc >= BO_Assign && Opc <= BO_OrAssign;
3412 }
3413 bool isAssignmentOp() const { return isAssignmentOp(getOpcode()); }
3414
3415 static bool isCompoundAssignmentOp(Opcode Opc) {
3416 return Opc > BO_Assign && Opc <= BO_OrAssign;
3417 }
3418 bool isCompoundAssignmentOp() const {
3419 return isCompoundAssignmentOp(getOpcode());
3420 }
3421 static Opcode getOpForCompoundAssignment(Opcode Opc) {
3422 assert(isCompoundAssignmentOp(Opc));
3423 if (Opc >= BO_AndAssign)
3424 return Opcode(unsigned(Opc) - BO_AndAssign + BO_And);
3425 else
3426 return Opcode(unsigned(Opc) - BO_MulAssign + BO_Mul);
3427 }
3428
3429 static bool isShiftAssignOp(Opcode Opc) {
3430 return Opc == BO_ShlAssign || Opc == BO_ShrAssign;
3431 }
3432 bool isShiftAssignOp() const {
3433 return isShiftAssignOp(getOpcode());
3434 }
3435
3436 // Return true if a binary operator using the specified opcode and operands
3437 // would match the 'p = (i8*)nullptr + n' idiom for casting a pointer-sized
3438 // integer to a pointer.
3439 static bool isNullPointerArithmeticExtension(ASTContext &Ctx, Opcode Opc,
3440 Expr *LHS, Expr *RHS);
3441
3442 static bool classof(const Stmt *S) {
3443 return S->getStmtClass() >= firstBinaryOperatorConstant &&
3444 S->getStmtClass() <= lastBinaryOperatorConstant;
3445 }
3446
3447 // Iterators
3448 child_range children() {
3449 return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR);
3450 }
3451 const_child_range children() const {
3452 return const_child_range(&SubExprs[0], &SubExprs[0] + END_EXPR);
3453 }
3454
3455 // Set the FP contractability status of this operator. Only meaningful for
3456 // operations on floating point types.
3457 void setFPFeatures(FPOptions F) {
3458 BinaryOperatorBits.FPFeatures = F.getInt();
3459 }
3460
3461 FPOptions getFPFeatures() const {
3462 return FPOptions(BinaryOperatorBits.FPFeatures);
3463 }
3464
3465 // Get the FP contractability status of this operator. Only meaningful for
3466 // operations on floating point types.
3467 bool isFPContractableWithinStatement() const {
3468 return getFPFeatures().allowFPContractWithinStatement();
3469 }
3470
3471 // Get the FENV_ACCESS status of this operator. Only meaningful for
3472 // operations on floating point types.
3473 bool isFEnvAccessOn() const { return getFPFeatures().allowFEnvAccess(); }
3474
3475 protected:
3476 BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy,
3477 ExprValueKind VK, ExprObjectKind OK,
3478 SourceLocation opLoc, FPOptions FPFeatures, bool dead2)
3479 : Expr(CompoundAssignOperatorClass, ResTy, VK, OK,
3480 lhs->isTypeDependent() || rhs->isTypeDependent(),
3481 lhs->isValueDependent() || rhs->isValueDependent(),
3482 (lhs->isInstantiationDependent() ||
3483 rhs->isInstantiationDependent()),
3484 (lhs->containsUnexpandedParameterPack() ||
3485 rhs->containsUnexpandedParameterPack())) {
3486 BinaryOperatorBits.Opc = opc;
3487 BinaryOperatorBits.FPFeatures = FPFeatures.getInt();
3488 BinaryOperatorBits.OpLoc = opLoc;
3489 SubExprs[LHS] = lhs;
3490 SubExprs[RHS] = rhs;
3491 }
3492
3493 BinaryOperator(StmtClass SC, EmptyShell Empty) : Expr(SC, Empty) {
3494 BinaryOperatorBits.Opc = BO_MulAssign;
3495 }
3496 };
3497
3498 /// CompoundAssignOperator - For compound assignments (e.g. +=), we keep
3499 /// track of the type the operation is performed in. Due to the semantics of
3500 /// these operators, the operands are promoted, the arithmetic performed, an
3501 /// implicit conversion back to the result type done, then the assignment takes
3502 /// place. This captures the intermediate type which the computation is done
3503 /// in.
3504 class CompoundAssignOperator : public BinaryOperator {
3505 QualType ComputationLHSType;
3506 QualType ComputationResultType;
3507 public:
3508 CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType,
3509 ExprValueKind VK, ExprObjectKind OK,
3510 QualType CompLHSType, QualType CompResultType,
3511 SourceLocation OpLoc, FPOptions FPFeatures)
3512 : BinaryOperator(lhs, rhs, opc, ResType, VK, OK, OpLoc, FPFeatures,
3513 true),
3514 ComputationLHSType(CompLHSType),
3515 ComputationResultType(CompResultType) {
3516 assert(isCompoundAssignmentOp() &&
3517 "Only should be used for compound assignments");
3518 }
3519
3520 /// Build an empty compound assignment operator expression.
3521 explicit CompoundAssignOperator(EmptyShell Empty)
3522 : BinaryOperator(CompoundAssignOperatorClass, Empty) { }
3523
3524 // The two computation types are the type the LHS is converted
3525 // to for the computation and the type of the result; the two are
3526 // distinct in a few cases (specifically, int+=ptr and ptr-=ptr).
3527 QualType getComputationLHSType() const { return ComputationLHSType; }
3528 void setComputationLHSType(QualType T) { ComputationLHSType = T; }
3529
3530 QualType getComputationResultType() const { return ComputationResultType; }
3531 void setComputationResultType(QualType T) { ComputationResultType = T; }
3532
3533 static bool classof(const Stmt *S) {
3534 return S->getStmtClass() == CompoundAssignOperatorClass;
3535 }
3536 };
3537
3538 /// AbstractConditionalOperator - An abstract base class for
3539 /// ConditionalOperator and BinaryConditionalOperator.
3540 class AbstractConditionalOperator : public Expr {
3541 SourceLocation QuestionLoc, ColonLoc;
3542 friend class ASTStmtReader;
3543
3544 protected:
3545 AbstractConditionalOperator(StmtClass SC, QualType T,
3546 ExprValueKind VK, ExprObjectKind OK,
3547 bool TD, bool VD, bool ID,
3548 bool ContainsUnexpandedParameterPack,
3549 SourceLocation qloc,
3550 SourceLocation cloc)
3551 : Expr(SC, T, VK, OK, TD, VD, ID, ContainsUnexpandedParameterPack),
3552 QuestionLoc(qloc), ColonLoc(cloc) {}
3553
3554 AbstractConditionalOperator(StmtClass SC, EmptyShell Empty)
3555 : Expr(SC, Empty) { }
3556
3557 public:
3558 // getCond - Return the expression representing the condition for
3559 // the ?: operator.
3560 Expr *getCond() const;
3561
3562 // getTrueExpr - Return the subexpression representing the value of
3563 // the expression if the condition evaluates to true.
3564 Expr *getTrueExpr() const;
3565
3566 // getFalseExpr - Return the subexpression representing the value of
3567 // the expression if the condition evaluates to false. This is
3568 // the same as getRHS.
3569 Expr *getFalseExpr() const;
3570
3571 SourceLocation getQuestionLoc() const { return QuestionLoc; }
3572 SourceLocation getColonLoc() const { return ColonLoc; }
3573
3574 static bool classof(const Stmt *T) {
3575 return T->getStmtClass() == ConditionalOperatorClass ||
3576 T->getStmtClass() == BinaryConditionalOperatorClass;
3577 }
3578 };
3579
3580 /// ConditionalOperator - The ?: ternary operator. The GNU "missing
3581 /// middle" extension is a BinaryConditionalOperator.
3582 class ConditionalOperator : public AbstractConditionalOperator {
3583 enum { COND, LHS, RHS, END_EXPR };
3584 Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides.
3585
3586 friend class ASTStmtReader;
3587 public:
3588 ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs,
3589 SourceLocation CLoc, Expr *rhs,
3590 QualType t, ExprValueKind VK, ExprObjectKind OK)
3591 : AbstractConditionalOperator(ConditionalOperatorClass, t, VK, OK,
3592 // FIXME: the type of the conditional operator doesn't
3593 // depend on the type of the conditional, but the standard
3594 // seems to imply that it could. File a bug!
3595 (lhs->isTypeDependent() || rhs->isTypeDependent()),
3596 (cond->isValueDependent() || lhs->isValueDependent() ||
3597 rhs->isValueDependent()),
3598 (cond->isInstantiationDependent() ||
3599 lhs->isInstantiationDependent() ||
3600 rhs->isInstantiationDependent()),
3601 (cond->containsUnexpandedParameterPack() ||
3602 lhs->containsUnexpandedParameterPack() ||
3603 rhs->containsUnexpandedParameterPack()),
3604 QLoc, CLoc) {
3605 SubExprs[COND] = cond;
3606 SubExprs[LHS] = lhs;
3607 SubExprs[RHS] = rhs;
3608 }
3609
3610 /// Build an empty conditional operator.
3611 explicit ConditionalOperator(EmptyShell Empty)
3612 : AbstractConditionalOperator(ConditionalOperatorClass, Empty) { }
3613
3614 // getCond - Return the expression representing the condition for
3615 // the ?: operator.
3616 Expr *getCond() const { return cast<Expr>(SubExprs[COND]); }
3617
3618 // getTrueExpr - Return the subexpression representing the value of
3619 // the expression if the condition evaluates to true.
3620 Expr *getTrueExpr() const { return cast<Expr>(SubExprs[LHS]); }
3621
3622 // getFalseExpr - Return the subexpression representing the value of
3623 // the expression if the condition evaluates to false. This is
3624 // the same as getRHS.
3625 Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); }
3626
3627 Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); }
3628 Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); }
3629
3630 SourceLocation getBeginLoc() const LLVM_READONLY {
3631 return getCond()->getBeginLoc();
3632 }
3633 SourceLocation getEndLoc() const LLVM_READONLY {
3634 return getRHS()->getEndLoc();
3635 }
3636
3637 static bool classof(const Stmt *T) {
3638 return T->getStmtClass() == ConditionalOperatorClass;
3639 }
3640
3641 // Iterators
3642 child_range children() {
3643 return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR);
3644 }
3645 const_child_range children() const {
3646 return const_child_range(&SubExprs[0], &SubExprs[0] + END_EXPR);
3647 }
3648 };
3649
3650 /// BinaryConditionalOperator - The GNU extension to the conditional
3651 /// operator which allows the middle operand to be omitted.
3652 ///
3653 /// This is a different expression kind on the assumption that almost
3654 /// every client ends up needing to know that these are different.
3655 class BinaryConditionalOperator : public AbstractConditionalOperator {
3656 enum { COMMON, COND, LHS, RHS, NUM_SUBEXPRS };
3657
3658 /// - the common condition/left-hand-side expression, which will be
3659 /// evaluated as the opaque value
3660 /// - the condition, expressed in terms of the opaque value
3661 /// - the left-hand-side, expressed in terms of the opaque value
3662 /// - the right-hand-side
3663 Stmt *SubExprs[NUM_SUBEXPRS];
3664 OpaqueValueExpr *OpaqueValue;
3665
3666 friend class ASTStmtReader;
3667 public:
3668 BinaryConditionalOperator(Expr *common, OpaqueValueExpr *opaqueValue,
3669 Expr *cond, Expr *lhs, Expr *rhs,
3670 SourceLocation qloc, SourceLocation cloc,
3671 QualType t, ExprValueKind VK, ExprObjectKind OK)
3672 : AbstractConditionalOperator(BinaryConditionalOperatorClass, t, VK, OK,
3673 (common->isTypeDependent() || rhs->isTypeDependent()),
3674 (common->isValueDependent() || rhs->isValueDependent()),
3675 (common->isInstantiationDependent() ||
3676 rhs->isInstantiationDependent()),
3677 (common->containsUnexpandedParameterPack() ||
3678 rhs->containsUnexpandedParameterPack()),
3679 qloc, cloc),
3680 OpaqueValue(opaqueValue) {
3681 SubExprs[COMMON] = common;
3682 SubExprs[COND] = cond;
3683 SubExprs[LHS] = lhs;
3684 SubExprs[RHS] = rhs;
3685 assert(OpaqueValue->getSourceExpr() == common && "Wrong opaque value");
3686 }
3687
3688 /// Build an empty conditional operator.
3689 explicit BinaryConditionalOperator(EmptyShell Empty)
3690 : AbstractConditionalOperator(BinaryConditionalOperatorClass, Empty) { }
3691
3692 /// getCommon - Return the common expression, written to the
3693 /// left of the condition. The opaque value will be bound to the
3694 /// result of this expression.
3695 Expr *getCommon() const { return cast<Expr>(SubExprs[COMMON]); }
3696
3697 /// getOpaqueValue - Return the opaque value placeholder.
3698 OpaqueValueExpr *getOpaqueValue() const { return OpaqueValue; }
3699
3700 /// getCond - Return the condition expression; this is defined
3701 /// in terms of the opaque value.
3702 Expr *getCond() const { return cast<Expr>(SubExprs[COND]); }
3703
3704 /// getTrueExpr - Return the subexpression which will be
3705 /// evaluated if the condition evaluates to true; this is defined
3706 /// in terms of the opaque value.
3707 Expr *getTrueExpr() const {
3708 return cast<Expr>(SubExprs[LHS]);
3709 }
3710
3711 /// getFalseExpr - Return the subexpression which will be
3712 /// evaluated if the condnition evaluates to false; this is
3713 /// defined in terms of the opaque value.
3714 Expr *getFalseExpr() const {
3715 return cast<Expr>(SubExprs[RHS]);
3716 }
3717
3718 SourceLocation getBeginLoc() const LLVM_READONLY {
3719 return getCommon()->getBeginLoc();
3720 }
3721 SourceLocation getEndLoc() const LLVM_READONLY {
3722 return getFalseExpr()->getEndLoc();
3723 }
3724
3725 static bool classof(const Stmt *T) {
3726 return T->getStmtClass() == BinaryConditionalOperatorClass;
3727 }
3728
3729 // Iterators
3730 child_range children() {
3731 return child_range(SubExprs, SubExprs + NUM_SUBEXPRS);
3732 }
3733 const_child_range children() const {
3734 return const_child_range(SubExprs, SubExprs + NUM_SUBEXPRS);
3735 }
3736 };
3737
3738 inline Expr *AbstractConditionalOperator::getCond() const {
3739 if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this))
3740 return co->getCond();
3741 return cast<BinaryConditionalOperator>(this)->getCond();
3742 }
3743
3744 inline Expr *AbstractConditionalOperator::getTrueExpr() const {
3745 if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this))
3746 return co->getTrueExpr();
3747 return cast<BinaryConditionalOperator>(this)->getTrueExpr();
3748 }
3749
3750 inline Expr *AbstractConditionalOperator::getFalseExpr() const {
3751 if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this))
3752 return co->getFalseExpr();
3753 return cast<BinaryConditionalOperator>(this)->getFalseExpr();
3754 }
3755
3756 /// AddrLabelExpr - The GNU address of label extension, representing &&label.
3757 class AddrLabelExpr : public Expr {
3758 SourceLocation AmpAmpLoc, LabelLoc;
3759 LabelDecl *Label;
3760 public:
3761 AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelDecl *L,
3762 QualType t)
3763 : Expr(AddrLabelExprClass, t, VK_RValue, OK_Ordinary, false, false, false,
3764 false),
3765 AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {}
3766
3767 /// Build an empty address of a label expression.
3768 explicit AddrLabelExpr(EmptyShell Empty)
3769 : Expr(AddrLabelExprClass, Empty) { }
3770
3771 SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; }
3772 void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; }
3773 SourceLocation getLabelLoc() const { return LabelLoc; }
3774 void setLabelLoc(SourceLocation L) { LabelLoc = L; }
3775
3776 SourceLocation getBeginLoc() const LLVM_READONLY { return AmpAmpLoc; }
3777 SourceLocation getEndLoc() const LLVM_READONLY { return LabelLoc; }
3778
3779 LabelDecl *getLabel() const { return Label; }
3780 void setLabel(LabelDecl *L) { Label = L; }
3781
3782 static bool classof(const Stmt *T) {
3783 return T->getStmtClass() == AddrLabelExprClass;
3784 }
3785
3786 // Iterators
3787 child_range children() {
3788 return child_range(child_iterator(), child_iterator());
3789 }
3790 const_child_range children() const {
3791 return const_child_range(const_child_iterator(), const_child_iterator());
3792 }
3793 };
3794
3795 /// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}).
3796 /// The StmtExpr contains a single CompoundStmt node, which it evaluates and
3797 /// takes the value of the last subexpression.
3798 ///
3799 /// A StmtExpr is always an r-value; values "returned" out of a
3800 /// StmtExpr will be copied.
3801 class StmtExpr : public Expr {
3802 Stmt *SubStmt;
3803 SourceLocation LParenLoc, RParenLoc;
3804 public:
3805 // FIXME: Does type-dependence need to be computed differently?
3806 // FIXME: Do we need to compute instantiation instantiation-dependence for
3807 // statements? (ugh!)
3808 StmtExpr(CompoundStmt *substmt, QualType T,
3809 SourceLocation lp, SourceLocation rp) :
3810 Expr(StmtExprClass, T, VK_RValue, OK_Ordinary,
3811 T->isDependentType(), false, false, false),
3812 SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { }
3813
3814 /// Build an empty statement expression.
3815 explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { }
3816
3817 CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); }
3818 const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); }
3819 void setSubStmt(CompoundStmt *S) { SubStmt = S; }
3820
3821 SourceLocation getBeginLoc() const LLVM_READONLY { return LParenLoc; }
3822 SourceLocation getEndLoc() const LLVM_READONLY { return RParenLoc; }
3823
3824 SourceLocation getLParenLoc() const { return LParenLoc; }
3825 void setLParenLoc(SourceLocation L) { LParenLoc = L; }
3826 SourceLocation getRParenLoc() const { return RParenLoc; }
3827 void setRParenLoc(SourceLocation L) { RParenLoc = L; }
3828
3829 static bool classof(const Stmt *T) {
3830 return T->getStmtClass() == StmtExprClass;
3831 }
3832
3833 // Iterators
3834 child_range children() { return child_range(&SubStmt, &SubStmt+1); }
3835 const_child_range children() const {
3836 return const_child_range(&SubStmt, &SubStmt + 1);
3837 }
3838 };
3839
3840 /// ShuffleVectorExpr - clang-specific builtin-in function
3841 /// __builtin_shufflevector.
3842 /// This AST node represents a operator that does a constant
3843 /// shuffle, similar to LLVM's shufflevector instruction. It takes
3844 /// two vectors and a variable number of constant indices,
3845 /// and returns the appropriately shuffled vector.
3846 class ShuffleVectorExpr : public Expr {
3847 SourceLocation BuiltinLoc, RParenLoc;
3848
3849 // SubExprs - the list of values passed to the __builtin_shufflevector
3850 // function. The first two are vectors, and the rest are constant
3851 // indices. The number of values in this list is always
3852 // 2+the number of indices in the vector type.
3853 Stmt **SubExprs;
3854 unsigned NumExprs;
3855
3856 public:
3857 ShuffleVectorExpr(const ASTContext &C, ArrayRef<Expr*> args, QualType Type,
3858 SourceLocation BLoc, SourceLocation RP);
3859
3860 /// Build an empty vector-shuffle expression.
3861 explicit ShuffleVectorExpr(EmptyShell Empty)
3862 : Expr(ShuffleVectorExprClass, Empty), SubExprs(nullptr) { }
3863
3864 SourceLocation getBuiltinLoc() const { return BuiltinLoc; }
3865 void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; }
3866
3867 SourceLocation getRParenLoc() const { return RParenLoc; }
3868 void setRParenLoc(SourceLocation L) { RParenLoc = L; }
3869
3870 SourceLocation getBeginLoc() const LLVM_READONLY { return BuiltinLoc; }
3871 SourceLocation getEndLoc() const LLVM_READONLY { return RParenLoc; }
3872
3873 static bool classof(const Stmt *T) {
3874 return T->getStmtClass() == ShuffleVectorExprClass;
3875 }
3876
3877 /// getNumSubExprs - Return the size of the SubExprs array. This includes the
3878 /// constant expression, the actual arguments passed in, and the function
3879 /// pointers.
3880 unsigned getNumSubExprs() const { return NumExprs; }
3881
3882 /// Retrieve the array of expressions.
3883 Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); }
3884
3885 /// getExpr - Return the Expr at the specified index.
3886 Expr *getExpr(unsigned Index) {
3887 assert((Index < NumExprs) && "Arg access out of range!");
3888 return cast<Expr>(SubExprs[Index]);
3889 }
3890 const Expr *getExpr(unsigned Index) const {
3891 assert((Index < NumExprs) && "Arg access out of range!");
3892 return cast<Expr>(SubExprs[Index]);
3893 }
3894
3895 void setExprs(const ASTContext &C, ArrayRef<Expr *> Exprs);
3896
3897 llvm::APSInt getShuffleMaskIdx(const ASTContext &Ctx, unsigned N) const {
3898 assert((N < NumExprs - 2) && "Shuffle idx out of range!");
3899 return getExpr(N+2)->EvaluateKnownConstInt(Ctx);
3900 }
3901
3902 // Iterators
3903 child_range children() {
3904 return child_range(&SubExprs[0], &SubExprs[0]+NumExprs);
3905 }
3906 const_child_range children() const {
3907 return const_child_range(&SubExprs[0], &SubExprs[0] + NumExprs);
3908 }
3909 };
3910
3911 /// ConvertVectorExpr - Clang builtin function __builtin_convertvector
3912 /// This AST node provides support for converting a vector type to another
3913 /// vector type of the same arity.
3914 class ConvertVectorExpr : public Expr {
3915 private:
3916 Stmt *SrcExpr;
3917 TypeSourceInfo *TInfo;
3918 SourceLocation BuiltinLoc, RParenLoc;
3919
3920 friend class ASTReader;
3921 friend class ASTStmtReader;
3922 explicit ConvertVectorExpr(EmptyShell Empty) : Expr(ConvertVectorExprClass, Empty) {}
3923
3924 public:
3925 ConvertVectorExpr(Expr* SrcExpr, TypeSourceInfo *TI, QualType DstType,
3926 ExprValueKind VK, ExprObjectKind OK,
3927 SourceLocation BuiltinLoc, SourceLocation RParenLoc)
3928 : Expr(ConvertVectorExprClass, DstType, VK, OK,
3929 DstType->isDependentType(),
3930 DstType->isDependentType() || SrcExpr->isValueDependent(),
3931 (DstType->isInstantiationDependentType() ||
3932 SrcExpr->isInstantiationDependent()),
3933 (DstType->containsUnexpandedParameterPack() ||
3934 SrcExpr->containsUnexpandedParameterPack())),
3935 SrcExpr(SrcExpr), TInfo(TI), BuiltinLoc(BuiltinLoc), RParenLoc(RParenLoc) {}
3936
3937 /// getSrcExpr - Return the Expr to be converted.
3938 Expr *getSrcExpr() const { return cast<Expr>(SrcExpr); }
3939
3940 /// getTypeSourceInfo - Return the destination type.
3941 TypeSourceInfo *getTypeSourceInfo() const {
3942 return TInfo;
3943 }
3944 void setTypeSourceInfo(TypeSourceInfo *ti) {
3945 TInfo = ti;
3946 }
3947
3948 /// getBuiltinLoc - Return the location of the __builtin_convertvector token.
3949 SourceLocation getBuiltinLoc() const { return BuiltinLoc; }
3950
3951 /// getRParenLoc - Return the location of final right parenthesis.
3952 SourceLocation getRParenLoc() const { return RParenLoc; }
3953
3954 SourceLocation getBeginLoc() const LLVM_READONLY { return BuiltinLoc; }
3955 SourceLocation getEndLoc() const LLVM_READONLY { return RParenLoc; }
3956
3957 static bool classof(const Stmt *T) {
3958 return T->getStmtClass() == ConvertVectorExprClass;
3959 }
3960
3961 // Iterators
3962 child_range children() { return child_range(&SrcExpr, &SrcExpr+1); }
3963 const_child_range children() const {
3964 return const_child_range(&SrcExpr, &SrcExpr + 1);
3965 }
3966 };
3967
3968 /// ChooseExpr - GNU builtin-in function __builtin_choose_expr.
3969 /// This AST node is similar to the conditional operator (?:) in C, with
3970 /// the following exceptions:
3971 /// - the test expression must be a integer constant expression.
3972 /// - the expression returned acts like the chosen subexpression in every
3973 /// visible way: the type is the same as that of the chosen subexpression,
3974 /// and all predicates (whether it's an l-value, whether it's an integer
3975 /// constant expression, etc.) return the same result as for the chosen
3976 /// sub-expression.
3977 class ChooseExpr : public Expr {
3978 enum { COND, LHS, RHS, END_EXPR };
3979 Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides.
3980 SourceLocation BuiltinLoc, RParenLoc;
3981 bool CondIsTrue;
3982 public:
3983 ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs,
3984 QualType t, ExprValueKind VK, ExprObjectKind OK,
3985 SourceLocation RP, bool condIsTrue,
3986 bool TypeDependent, bool ValueDependent)
3987 : Expr(ChooseExprClass, t, VK, OK, TypeDependent, ValueDependent,
3988 (cond->isInstantiationDependent() ||
3989 lhs->isInstantiationDependent() ||
3990 rhs->isInstantiationDependent()),
3991 (cond->containsUnexpandedParameterPack() ||
3992 lhs->containsUnexpandedParameterPack() ||
3993 rhs->containsUnexpandedParameterPack())),
3994 BuiltinLoc(BLoc), RParenLoc(RP), CondIsTrue(condIsTrue) {
3995 SubExprs[COND] = cond;
3996 SubExprs[LHS] = lhs;
3997 SubExprs[RHS] = rhs;
3998 }
3999
4000 /// Build an empty __builtin_choose_expr.
4001 explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { }
4002
4003 /// isConditionTrue - Return whether the condition is true (i.e. not
4004 /// equal to zero).
4005 bool isConditionTrue() const {
4006 assert(!isConditionDependent() &&
4007 "Dependent condition isn't true or false");
4008 return CondIsTrue;
4009 }
4010 void setIsConditionTrue(bool isTrue) { CondIsTrue = isTrue; }
4011
4012 bool isConditionDependent() const {
4013 return getCond()->isTypeDependent() || getCond()->isValueDependent();
4014 }
4015
4016 /// getChosenSubExpr - Return the subexpression chosen according to the
4017 /// condition.
4018 Expr *getChosenSubExpr() const {
4019 return isConditionTrue() ? getLHS() : getRHS();
4020 }
4021
4022 Expr *getCond() const { return cast<Expr>(SubExprs[COND]); }
4023 void setCond(Expr *E) { SubExprs[COND] = E; }
4024 Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); }
4025 void setLHS(Expr *E) { SubExprs[LHS] = E; }
4026 Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); }
4027 void setRHS(Expr *E) { SubExprs[RHS] = E; }
4028
4029 SourceLocation getBuiltinLoc() const { return BuiltinLoc; }
4030 void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; }
4031
4032 SourceLocation getRParenLoc() const { return RParenLoc; }
4033 void setRParenLoc(SourceLocation L) { RParenLoc = L; }
4034
4035 SourceLocation getBeginLoc() const LLVM_READONLY { return BuiltinLoc; }
4036 SourceLocation getEndLoc() const LLVM_READONLY { return RParenLoc; }
4037
4038 static bool classof(const Stmt *T) {
4039 return T->getStmtClass() == ChooseExprClass;
4040 }
4041
4042 // Iterators
4043 child_range children() {
4044 return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR);
4045 }
4046 const_child_range children() const {
4047 return const_child_range(&SubExprs[0], &SubExprs[0] + END_EXPR);
4048 }
4049 };
4050
4051 /// GNUNullExpr - Implements the GNU __null extension, which is a name
4052 /// for a null pointer constant that has integral type (e.g., int or
4053 /// long) and is the same size and alignment as a pointer. The __null
4054 /// extension is typically only used by system headers, which define
4055 /// NULL as __null in C++ rather than using 0 (which is an integer
4056 /// that may not match the size of a pointer).
4057 class GNUNullExpr : public Expr {
4058 /// TokenLoc - The location of the __null keyword.
4059 SourceLocation TokenLoc;
4060
4061 public:
4062 GNUNullExpr(QualType Ty, SourceLocation Loc)
4063 : Expr(GNUNullExprClass, Ty, VK_RValue, OK_Ordinary, false, false, false,
4064 false),
4065 TokenLoc(Loc) { }
4066
4067 /// Build an empty GNU __null expression.
4068 explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { }
4069
4070 /// getTokenLocation - The location of the __null token.
4071 SourceLocation getTokenLocation() const { return TokenLoc; }
4072 void setTokenLocation(SourceLocation L) { TokenLoc = L; }
4073
4074 SourceLocation getBeginLoc() const LLVM_READONLY { return TokenLoc; }
4075 SourceLocation getEndLoc() const LLVM_READONLY { return TokenLoc; }
4076
4077 static bool classof(const Stmt *T) {
4078 return T->getStmtClass() == GNUNullExprClass;
4079 }
4080
4081 // Iterators
4082 child_range children() {
4083 return child_range(child_iterator(), child_iterator());
4084 }
4085 const_child_range children() const {
4086 return const_child_range(const_child_iterator(), const_child_iterator());
4087 }
4088 };
4089
4090 /// Represents a call to the builtin function \c __builtin_va_arg.
4091 class VAArgExpr : public Expr {
4092 Stmt *Val;
4093 llvm::PointerIntPair<TypeSourceInfo *, 1, bool> TInfo;
4094 SourceLocation BuiltinLoc, RParenLoc;
4095 public:
4096 VAArgExpr(SourceLocation BLoc, Expr *e, TypeSourceInfo *TInfo,
4097 SourceLocation RPLoc, QualType t, bool IsMS)
4098 : Expr(VAArgExprClass, t, VK_RValue, OK_Ordinary, t->isDependentType(),
4099 false, (TInfo->getType()->isInstantiationDependentType() ||
4100 e->isInstantiationDependent()),
4101 (TInfo->getType()->containsUnexpandedParameterPack() ||
4102 e->containsUnexpandedParameterPack())),
4103 Val(e), TInfo(TInfo, IsMS), BuiltinLoc(BLoc), RParenLoc(RPLoc) {}
4104
4105 /// Create an empty __builtin_va_arg expression.
4106 explicit VAArgExpr(EmptyShell Empty)
4107 : Expr(VAArgExprClass, Empty), Val(nullptr), TInfo(nullptr, false) {}
4108
4109 const Expr *getSubExpr() const { return cast<Expr>(Val); }
4110 Expr *getSubExpr() { return cast<Expr>(Val); }
4111 void setSubExpr(Expr *E) { Val = E; }
4112
4113 /// Returns whether this is really a Win64 ABI va_arg expression.
4114 bool isMicrosoftABI() const { return TInfo.getInt(); }
4115 void setIsMicrosoftABI(bool IsMS) { TInfo.setInt(IsMS); }
4116
4117 TypeSourceInfo *getWrittenTypeInfo() const { return TInfo.getPointer(); }
4118 void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo.setPointer(TI); }
4119
4120 SourceLocation getBuiltinLoc() const { return BuiltinLoc; }
4121 void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; }
4122
4123 SourceLocation getRParenLoc() const { return RParenLoc; }
4124 void setRParenLoc(SourceLocation L) { RParenLoc = L; }
4125
4126 SourceLocation getBeginLoc() const LLVM_READONLY { return BuiltinLoc; }
4127 SourceLocation getEndLoc() const LLVM_READONLY { return RParenLoc; }
4128
4129 static bool classof(const Stmt *T) {
4130 return T->getStmtClass() == VAArgExprClass;
4131 }
4132
4133 // Iterators
4134 child_range children() { return child_range(&Val, &Val+1); }
4135 const_child_range children() const {
4136 return const_child_range(&Val, &Val + 1);
4137 }
4138 };
4139
4140 /// Describes an C or C++ initializer list.
4141 ///
4142 /// InitListExpr describes an initializer list, which can be used to
4143 /// initialize objects of different types, including
4144 /// struct/class/union types, arrays, and vectors. For example:
4145 ///
4146 /// @code
4147 /// struct foo x = { 1, { 2, 3 } };
4148 /// @endcode
4149 ///
4150 /// Prior to semantic analysis, an initializer list will represent the
4151 /// initializer list as written by the user, but will have the
4152 /// placeholder type "void". This initializer list is called the
4153 /// syntactic form of the initializer, and may contain C99 designated
4154 /// initializers (represented as DesignatedInitExprs), initializations
4155 /// of subobject members without explicit braces, and so on. Clients
4156 /// interested in the original syntax of the initializer list should
4157 /// use the syntactic form of the initializer list.
4158 ///
4159 /// After semantic analysis, the initializer list will represent the
4160 /// semantic form of the initializer, where the initializations of all
4161 /// subobjects are made explicit with nested InitListExpr nodes and
4162 /// C99 designators have been eliminated by placing the designated
4163 /// initializations into the subobject they initialize. Additionally,
4164 /// any "holes" in the initialization, where no initializer has been
4165 /// specified for a particular subobject, will be replaced with
4166 /// implicitly-generated ImplicitValueInitExpr expressions that
4167 /// value-initialize the subobjects. Note, however, that the
4168 /// initializer lists may still have fewer initializers than there are
4169 /// elements to initialize within the object.
4170 ///
4171 /// After semantic analysis has completed, given an initializer list,
4172 /// method isSemanticForm() returns true if and only if this is the
4173 /// semantic form of the initializer list (note: the same AST node
4174 /// may at the same time be the syntactic form).
4175 /// Given the semantic form of the initializer list, one can retrieve
4176 /// the syntactic form of that initializer list (when different)
4177 /// using method getSyntacticForm(); the method returns null if applied
4178 /// to a initializer list which is already in syntactic form.
4179 /// Similarly, given the syntactic form (i.e., an initializer list such
4180 /// that isSemanticForm() returns false), one can retrieve the semantic
4181 /// form using method getSemanticForm().
4182 /// Since many initializer lists have the same syntactic and semantic forms,
4183 /// getSyntacticForm() may return NULL, indicating that the current
4184 /// semantic initializer list also serves as its syntactic form.
4185 class InitListExpr : public Expr {
4186 // FIXME: Eliminate this vector in favor of ASTContext allocation
4187 typedef ASTVector<Stmt *> InitExprsTy;
4188 InitExprsTy InitExprs;
4189 SourceLocation LBraceLoc, RBraceLoc;
4190
4191 /// The alternative form of the initializer list (if it exists).
4192 /// The int part of the pair stores whether this initializer list is
4193 /// in semantic form. If not null, the pointer points to:
4194 /// - the syntactic form, if this is in semantic form;
4195 /// - the semantic form, if this is in syntactic form.
4196 llvm::PointerIntPair<InitListExpr *, 1, bool> AltForm;
4197
4198 /// Either:
4199 /// If this initializer list initializes an array with more elements than
4200 /// there are initializers in the list, specifies an expression to be used
4201 /// for value initialization of the rest of the elements.
4202 /// Or
4203 /// If this initializer list initializes a union, specifies which
4204 /// field within the union will be initialized.
4205 llvm::PointerUnion<Expr *, FieldDecl *> ArrayFillerOrUnionFieldInit;
4206
4207 public:
4208 InitListExpr(const ASTContext &C, SourceLocation lbraceloc,
4209 ArrayRef<Expr*> initExprs, SourceLocation rbraceloc);
4210
4211 /// Build an empty initializer list.
4212 explicit InitListExpr(EmptyShell Empty)
4213 : Expr(InitListExprClass, Empty), AltForm(nullptr, true) { }
4214
4215 unsigned getNumInits() const { return InitExprs.size(); }
4216
4217 /// Retrieve the set of initializers.
4218 Expr **getInits() { return reinterpret_cast<Expr **>(InitExprs.data()); }
4219
4220 /// Retrieve the set of initializers.
4221 Expr * const *getInits() const {
4222 return reinterpret_cast<Expr * const *>(InitExprs.data());
4223 }
4224
4225 ArrayRef<Expr *> inits() {
4226 return llvm::makeArrayRef(getInits(), getNumInits());
4227 }
4228
4229 ArrayRef<Expr *> inits() const {
4230 return llvm::makeArrayRef(getInits(), getNumInits());
4231 }
4232
4233 const Expr *getInit(unsigned Init) const {
4234 assert(Init < getNumInits() && "Initializer access out of range!");
4235 return cast_or_null<Expr>(InitExprs[Init]);
4236 }
4237
4238 Expr *getInit(unsigned Init) {
4239 assert(Init < getNumInits() && "Initializer access out of range!");
4240 return cast_or_null<Expr>(InitExprs[Init]);
4241 }
4242
4243 void setInit(unsigned Init, Expr *expr) {
4244 assert(Init < getNumInits() && "Initializer access out of range!");
4245 InitExprs[Init] = expr;
4246
4247 if (expr) {
4248 ExprBits.TypeDependent |= expr->isTypeDependent();
4249 ExprBits.ValueDependent |= expr->isValueDependent();
4250 ExprBits.InstantiationDependent |= expr->isInstantiationDependent();
4251 ExprBits.ContainsUnexpandedParameterPack |=
4252 expr->containsUnexpandedParameterPack();
4253 }
4254 }
4255
4256 /// Reserve space for some number of initializers.
4257 void reserveInits(const ASTContext &C, unsigned NumInits);
4258
4259 /// Specify the number of initializers
4260 ///
4261 /// If there are more than @p NumInits initializers, the remaining
4262 /// initializers will be destroyed. If there are fewer than @p
4263 /// NumInits initializers, NULL expressions will be added for the
4264 /// unknown initializers.
4265 void resizeInits(const ASTContext &Context, unsigned NumInits);
4266
4267 /// Updates the initializer at index @p Init with the new
4268 /// expression @p expr, and returns the old expression at that
4269 /// location.
4270 ///
4271 /// When @p Init is out of range for this initializer list, the
4272 /// initializer list will be extended with NULL expressions to
4273 /// accommodate the new entry.
4274 Expr *updateInit(const ASTContext &C, unsigned Init, Expr *expr);
4275
4276 /// If this initializer list initializes an array with more elements
4277 /// than there are initializers in the list, specifies an expression to be
4278 /// used for value initialization of the rest of the elements.
4279 Expr *getArrayFiller() {
4280 return ArrayFillerOrUnionFieldInit.dyn_cast<Expr *>();
4281 }
4282 const Expr *getArrayFiller() const {
4283 return const_cast<InitListExpr *>(this)->getArrayFiller();
4284 }
4285 void setArrayFiller(Expr *filler);
4286
4287 /// Return true if this is an array initializer and its array "filler"
4288 /// has been set.
4289 bool hasArrayFiller() const { return getArrayFiller(); }
4290
4291 /// If this initializes a union, specifies which field in the
4292 /// union to initialize.
4293 ///
4294 /// Typically, this field is the first named field within the
4295 /// union. However, a designated initializer can specify the
4296 /// initialization of a different field within the union.
4297 FieldDecl *getInitializedFieldInUnion() {
4298 return ArrayFillerOrUnionFieldInit.dyn_cast<FieldDecl *>();
4299 }
4300 const FieldDecl *getInitializedFieldInUnion() const {
4301 return const_cast<InitListExpr *>(this)->getInitializedFieldInUnion();
4302 }
4303 void setInitializedFieldInUnion(FieldDecl *FD) {
4304 assert((FD == nullptr
4305 || getInitializedFieldInUnion() == nullptr
4306 || getInitializedFieldInUnion() == FD)
4307 && "Only one field of a union may be initialized at a time!");
4308 ArrayFillerOrUnionFieldInit = FD;
4309 }
4310
4311 // Explicit InitListExpr's originate from source code (and have valid source
4312 // locations). Implicit InitListExpr's are created by the semantic analyzer.
4313 bool isExplicit() const {
4314 return LBraceLoc.isValid() && RBraceLoc.isValid();
4315 }
4316
4317 // Is this an initializer for an array of characters, initialized by a string
4318 // literal or an @encode?
4319 bool isStringLiteralInit() const;
4320
4321 /// Is this a transparent initializer list (that is, an InitListExpr that is
4322 /// purely syntactic, and whose semantics are that of the sole contained
4323 /// initializer)?
4324 bool isTransparent() const;
4325
4326 /// Is this the zero initializer {0} in a language which considers it
4327 /// idiomatic?
4328 bool isIdiomaticZeroInitializer(const LangOptions &LangOpts) const;
4329
4330 SourceLocation getLBraceLoc() const { return LBraceLoc; }
4331 void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; }
4332 SourceLocation getRBraceLoc() const { return RBraceLoc; }
4333 void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; }
4334
4335 bool isSemanticForm() const { return AltForm.getInt(); }
4336 InitListExpr *getSemanticForm() const {
4337 return isSemanticForm() ? nullptr : AltForm.getPointer();
4338 }
4339 bool isSyntacticForm() const {
4340 return !AltForm.getInt() || !AltForm.getPointer();
4341 }
4342 InitListExpr *getSyntacticForm() const {
4343 return isSemanticForm() ? AltForm.getPointer() : nullptr;
4344 }
4345
4346 void setSyntacticForm(InitListExpr *Init) {
4347 AltForm.setPointer(Init);
4348 AltForm.setInt(true);
4349 Init->AltForm.setPointer(this);
4350 Init->AltForm.setInt(false);
4351 }
4352
4353 bool hadArrayRangeDesignator() const {
4354 return InitListExprBits.HadArrayRangeDesignator != 0;
4355 }
4356 void sawArrayRangeDesignator(bool ARD = true) {
4357 InitListExprBits.HadArrayRangeDesignator = ARD;
4358 }
4359
4360 SourceLocation getBeginLoc() const LLVM_READONLY;
4361 SourceLocation getEndLoc() const LLVM_READONLY;
4362
4363 static bool classof(const Stmt *T) {
4364 return T->getStmtClass() == InitListExprClass;
4365 }
4366
4367 // Iterators
4368 child_range children() {
4369 const_child_range CCR = const_cast<const InitListExpr *>(this)->children();
4370 return child_range(cast_away_const(CCR.begin()),
4371 cast_away_const(CCR.end()));
4372 }
4373
4374 const_child_range children() const {
4375 // FIXME: This does not include the array filler expression.
4376 if (InitExprs.empty())
4377 return const_child_range(const_child_iterator(), const_child_iterator());
4378 return const_child_range(&InitExprs[0], &InitExprs[0] + InitExprs.size());
4379 }
4380
4381 typedef InitExprsTy::iterator iterator;
4382 typedef InitExprsTy::const_iterator const_iterator;
4383 typedef InitExprsTy::reverse_iterator reverse_iterator;
4384 typedef InitExprsTy::const_reverse_iterator const_reverse_iterator;
4385
4386 iterator begin() { return InitExprs.begin(); }
4387 const_iterator begin() const { return InitExprs.begin(); }
4388 iterator end() { return InitExprs.end(); }
4389 const_iterator end() const { return InitExprs.end(); }
4390 reverse_iterator rbegin() { return InitExprs.rbegin(); }
4391 const_reverse_iterator rbegin() const { return InitExprs.rbegin(); }
4392 reverse_iterator rend() { return InitExprs.rend(); }
4393 const_reverse_iterator rend() const { return InitExprs.rend(); }
4394
4395 friend class ASTStmtReader;
4396 friend class ASTStmtWriter;
4397 };
4398
4399 /// Represents a C99 designated initializer expression.
4400 ///
4401 /// A designated initializer expression (C99 6.7.8) contains one or
4402 /// more designators (which can be field designators, array
4403 /// designators, or GNU array-range designators) followed by an
4404 /// expression that initializes the field or element(s) that the
4405 /// designators refer to. For example, given:
4406 ///
4407 /// @code
4408 /// struct point {
4409 /// double x;
4410 /// double y;
4411 /// };
4412 /// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 };
4413 /// @endcode
4414 ///
4415 /// The InitListExpr contains three DesignatedInitExprs, the first of
4416 /// which covers @c [2].y=1.0. This DesignatedInitExpr will have two
4417 /// designators, one array designator for @c [2] followed by one field
4418 /// designator for @c .y. The initialization expression will be 1.0.
4419 class DesignatedInitExpr final
4420 : public Expr,
4421 private llvm::TrailingObjects<DesignatedInitExpr, Stmt *> {
4422 public:
4423 /// Forward declaration of the Designator class.
4424 class Designator;
4425
4426 private:
4427 /// The location of the '=' or ':' prior to the actual initializer
4428 /// expression.
4429 SourceLocation EqualOrColonLoc;
4430
4431 /// Whether this designated initializer used the GNU deprecated
4432 /// syntax rather than the C99 '=' syntax.
4433 unsigned GNUSyntax : 1;
4434
4435 /// The number of designators in this initializer expression.
4436 unsigned NumDesignators : 15;
4437
4438 /// The number of subexpressions of this initializer expression,
4439 /// which contains both the initializer and any additional
4440 /// expressions used by array and array-range designators.
4441 unsigned NumSubExprs : 16;
4442
4443 /// The designators in this designated initialization
4444 /// expression.
4445 Designator *Designators;
4446
4447 DesignatedInitExpr(const ASTContext &C, QualType Ty,
4448 llvm::ArrayRef<Designator> Designators,
4449 SourceLocation EqualOrColonLoc, bool GNUSyntax,
4450 ArrayRef<Expr *> IndexExprs, Expr *Init);
4451
4452 explicit DesignatedInitExpr(unsigned NumSubExprs)
4453 : Expr(DesignatedInitExprClass, EmptyShell()),
4454 NumDesignators(0), NumSubExprs(NumSubExprs), Designators(nullptr) { }
4455
4456 public:
4457 /// A field designator, e.g., ".x".
4458 struct FieldDesignator {
4459 /// Refers to the field that is being initialized. The low bit
4460 /// of this field determines whether this is actually a pointer
4461 /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When
4462 /// initially constructed, a field designator will store an
4463 /// IdentifierInfo*. After semantic analysis has resolved that
4464 /// name, the field designator will instead store a FieldDecl*.
4465 uintptr_t NameOrField;
4466
4467 /// The location of the '.' in the designated initializer.
4468 unsigned DotLoc;
4469
4470 /// The location of the field name in the designated initializer.
4471 unsigned FieldLoc;
4472 };
4473
4474 /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]".
4475 struct ArrayOrRangeDesignator {
4476 /// Location of the first index expression within the designated
4477 /// initializer expression's list of subexpressions.
4478 unsigned Index;
4479 /// The location of the '[' starting the array range designator.
4480 unsigned LBracketLoc;
4481 /// The location of the ellipsis separating the start and end
4482 /// indices. Only valid for GNU array-range designators.
4483 unsigned EllipsisLoc;
4484 /// The location of the ']' terminating the array range designator.
4485 unsigned RBracketLoc;
4486 };
4487
4488 /// Represents a single C99 designator.
4489 ///
4490 /// @todo This class is infuriatingly similar to clang::Designator,
4491 /// but minor differences (storing indices vs. storing pointers)
4492 /// keep us from reusing it. Try harder, later, to rectify these
4493 /// differences.
4494 class Designator {
4495 /// The kind of designator this describes.
4496 enum {
4497 FieldDesignator,
4498 ArrayDesignator,
4499 ArrayRangeDesignator
4500 } Kind;
4501
4502 union {
4503 /// A field designator, e.g., ".x".
4504 struct FieldDesignator Field;
4505 /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]".
4506 struct ArrayOrRangeDesignator ArrayOrRange;
4507 };
4508 friend class DesignatedInitExpr;
4509
4510 public:
4511 Designator() {}
4512
4513 /// Initializes a field designator.
4514 Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc,
4515 SourceLocation FieldLoc)
4516 : Kind(FieldDesignator) {
4517 Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01;
4518 Field.DotLoc = DotLoc.getRawEncoding();
4519 Field.FieldLoc = FieldLoc.getRawEncoding();
4520 }
4521
4522 /// Initializes an array designator.
4523 Designator(unsigned Index, SourceLocation LBracketLoc,
4524 SourceLocation RBracketLoc)
4525 : Kind(ArrayDesignator) {
4526 ArrayOrRange.Index = Index;
4527 ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding();
4528 ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding();
4529 ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding();
4530 }
4531
4532 /// Initializes a GNU array-range designator.
4533 Designator(unsigned Index, SourceLocation LBracketLoc,
4534 SourceLocation EllipsisLoc, SourceLocation RBracketLoc)
4535 : Kind(ArrayRangeDesignator) {
4536 ArrayOrRange.Index = Index;
4537 ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding();
4538 ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding();
4539 ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding();
4540 }
4541
4542 bool isFieldDesignator() const { return Kind == FieldDesignator; }
4543 bool isArrayDesignator() const { return Kind == ArrayDesignator; }
4544 bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; }
4545
4546 IdentifierInfo *getFieldName() const;
4547
4548 FieldDecl *getField() const {
4549 assert(Kind == FieldDesignator && "Only valid on a field designator");
4550 if (Field.NameOrField & 0x01)
4551 return nullptr;
4552 else
4553 return reinterpret_cast<FieldDecl *>(Field.NameOrField);
4554 }
4555
4556 void setField(FieldDecl *FD) {
4557 assert(Kind == FieldDesignator && "Only valid on a field designator");
4558 Field.NameOrField = reinterpret_cast<uintptr_t>(FD);
4559 }
4560
4561 SourceLocation getDotLoc() const {
4562 assert(Kind == FieldDesignator && "Only valid on a field designator");
4563 return SourceLocation::getFromRawEncoding(Field.DotLoc);
4564 }
4565
4566 SourceLocation getFieldLoc() const {
4567 assert(Kind == FieldDesignator && "Only valid on a field designator");
4568 return SourceLocation::getFromRawEncoding(Field.FieldLoc);
4569 }
4570
4571 SourceLocation getLBracketLoc() const {
4572 assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) &&
4573 "Only valid on an array or array-range designator");
4574 return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc);
4575 }
4576
4577 SourceLocation getRBracketLoc() const {
4578 assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) &&
4579 "Only valid on an array or array-range designator");
4580 return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc);
4581 }
4582
4583 SourceLocation getEllipsisLoc() const {
4584 assert(Kind == ArrayRangeDesignator &&
4585 "Only valid on an array-range designator");
4586 return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc);
4587 }
4588
4589 unsigned getFirstExprIndex() const {
4590 assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) &&
4591 "Only valid on an array or array-range designator");
4592 return ArrayOrRange.Index;
4593 }
4594
4595 SourceLocation getBeginLoc() const LLVM_READONLY {
4596 if (Kind == FieldDesignator)
4597 return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc();
4598 else
4599 return getLBracketLoc();
4600 }
4601 SourceLocation getEndLoc() const LLVM_READONLY {
4602 return Kind == FieldDesignator ? getFieldLoc() : getRBracketLoc();
4603 }
4604 SourceRange getSourceRange() const LLVM_READONLY {
4605 return SourceRange(getBeginLoc(), getEndLoc());
4606 }
4607 };
4608
4609 static DesignatedInitExpr *Create(const ASTContext &C,
4610 llvm::ArrayRef<Designator> Designators,
4611 ArrayRef<Expr*> IndexExprs,
4612 SourceLocation EqualOrColonLoc,
4613 bool GNUSyntax, Expr *Init);
4614
4615 static DesignatedInitExpr *CreateEmpty(const ASTContext &C,
4616 unsigned NumIndexExprs);
4617
4618 /// Returns the number of designators in this initializer.
4619 unsigned size() const { return NumDesignators; }
4620
4621 // Iterator access to the designators.
4622 llvm::MutableArrayRef<Designator> designators() {
4623 return {Designators, NumDesignators};
4624 }
4625
4626 llvm::ArrayRef<Designator> designators() const {
4627 return {Designators, NumDesignators};
4628 }
4629
4630 Designator *getDesignator(unsigned Idx) { return &designators()[Idx]; }
4631 const Designator *getDesignator(unsigned Idx) const {
4632 return &designators()[Idx];
4633 }
4634
4635 void setDesignators(const ASTContext &C, const Designator *Desigs,
4636 unsigned NumDesigs);
4637
4638 Expr *getArrayIndex(const Designator &D) const;
4639 Expr *getArrayRangeStart(const Designator &D) const;
4640 Expr *getArrayRangeEnd(const Designator &D) const;
4641
4642 /// Retrieve the location of the '=' that precedes the
4643 /// initializer value itself, if present.
4644 SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; }
4645 void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; }
4646
4647 /// Determines whether this designated initializer used the
4648 /// deprecated GNU syntax for designated initializers.
4649 bool usesGNUSyntax() const { return GNUSyntax; }
4650 void setGNUSyntax(bool GNU) { GNUSyntax = GNU; }
4651
4652 /// Retrieve the initializer value.
4653 Expr *getInit() const {
4654 return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin());
4655 }
4656
4657 void setInit(Expr *init) {
4658 *child_begin() = init;
4659 }
4660
4661 /// Retrieve the total number of subexpressions in this
4662 /// designated initializer expression, including the actual
4663 /// initialized value and any expressions that occur within array
4664 /// and array-range designators.
4665 unsigned getNumSubExprs() const { return NumSubExprs; }
4666
4667 Expr *getSubExpr(unsigned Idx) const {
4668 assert(Idx < NumSubExprs && "Subscript out of range");
4669 return cast<Expr>(getTrailingObjects<Stmt *>()[Idx]);
4670 }
4671
4672 void setSubExpr(unsigned Idx, Expr *E) {
4673 assert(Idx < NumSubExprs && "Subscript out of range");
4674 getTrailingObjects<Stmt *>()[Idx] = E;
4675 }
4676
4677 /// Replaces the designator at index @p Idx with the series
4678 /// of designators in [First, Last).
4679 void ExpandDesignator(const ASTContext &C, unsigned Idx,
4680 const Designator *First, const Designator *Last);
4681
4682 SourceRange getDesignatorsSourceRange() const;
4683
4684 SourceLocation getBeginLoc() const LLVM_READONLY;
4685 SourceLocation getEndLoc() const LLVM_READONLY;
4686
4687 static bool classof(const Stmt *T) {
4688 return T->getStmtClass() == DesignatedInitExprClass;
4689 }
4690
4691 // Iterators
4692 child_range children() {
4693 Stmt **begin = getTrailingObjects<Stmt *>();
4694 return child_range(begin, begin + NumSubExprs);
4695 }
4696 const_child_range children() const {
4697 Stmt * const *begin = getTrailingObjects<Stmt *>();
4698 return const_child_range(begin, begin + NumSubExprs);
4699 }
4700
4701 friend TrailingObjects;
4702 };
4703
4704 /// Represents a place-holder for an object not to be initialized by
4705 /// anything.
4706 ///
4707 /// This only makes sense when it appears as part of an updater of a
4708 /// DesignatedInitUpdateExpr (see below). The base expression of a DIUE
4709 /// initializes a big object, and the NoInitExpr's mark the spots within the
4710 /// big object not to be overwritten by the updater.
4711 ///
4712 /// \see DesignatedInitUpdateExpr
4713 class NoInitExpr : public Expr {
4714 public:
4715 explicit NoInitExpr(QualType ty)
4716 : Expr(NoInitExprClass, ty, VK_RValue, OK_Ordinary,
4717 false, false, ty->isInstantiationDependentType(), false) { }
4718
4719 explicit NoInitExpr(EmptyShell Empty)
4720 : Expr(NoInitExprClass, Empty) { }
4721
4722 static bool classof(const Stmt *T) {
4723 return T->getStmtClass() == NoInitExprClass;
4724 }
4725
4726 SourceLocation getBeginLoc() const LLVM_READONLY { return SourceLocation(); }
4727 SourceLocation getEndLoc() const LLVM_READONLY { return SourceLocation(); }
4728
4729 // Iterators
4730 child_range children() {
4731 return child_range(child_iterator(), child_iterator());
4732 }
4733 const_child_range children() const {
4734 return const_child_range(const_child_iterator(), const_child_iterator());
4735 }
4736 };
4737
4738 // In cases like:
4739 // struct Q { int a, b, c; };
4740 // Q *getQ();
4741 // void foo() {
4742 // struct A { Q q; } a = { *getQ(), .q.b = 3 };
4743 // }
4744 //
4745 // We will have an InitListExpr for a, with type A, and then a
4746 // DesignatedInitUpdateExpr for "a.q" with type Q. The "base" for this DIUE
4747 // is the call expression *getQ(); the "updater" for the DIUE is ".q.b = 3"
4748 //
4749 class DesignatedInitUpdateExpr : public Expr {
4750 // BaseAndUpdaterExprs[0] is the base expression;
4751 // BaseAndUpdaterExprs[1] is an InitListExpr overwriting part of the base.
4752 Stmt *BaseAndUpdaterExprs[2];
4753
4754 public:
4755 DesignatedInitUpdateExpr(const ASTContext &C, SourceLocation lBraceLoc,
4756 Expr *baseExprs, SourceLocation rBraceLoc);
4757
4758 explicit DesignatedInitUpdateExpr(EmptyShell Empty)
4759 : Expr(DesignatedInitUpdateExprClass, Empty) { }
4760
4761 SourceLocation getBeginLoc() const LLVM_READONLY;
4762 SourceLocation getEndLoc() const LLVM_READONLY;
4763
4764 static bool classof(const Stmt *T) {
4765 return T->getStmtClass() == DesignatedInitUpdateExprClass;
4766 }
4767
4768 Expr *getBase() const { return cast<Expr>(BaseAndUpdaterExprs[0]); }
4769 void setBase(Expr *Base) { BaseAndUpdaterExprs[0] = Base; }
4770
4771 InitListExpr *getUpdater() const {
4772 return cast<InitListExpr>(BaseAndUpdaterExprs[1]);
4773 }
4774 void setUpdater(Expr *Updater) { BaseAndUpdaterExprs[1] = Updater; }
4775
4776 // Iterators
4777 // children = the base and the updater
4778 child_range children() {
4779 return child_range(&BaseAndUpdaterExprs[0], &BaseAndUpdaterExprs[0] + 2);
4780 }
4781 const_child_range children() const {
4782 return const_child_range(&BaseAndUpdaterExprs[0],
4783 &BaseAndUpdaterExprs[0] + 2);
4784 }
4785 };
4786
4787 /// Represents a loop initializing the elements of an array.
4788 ///
4789 /// The need to initialize the elements of an array occurs in a number of
4790 /// contexts:
4791 ///
4792 /// * in the implicit copy/move constructor for a class with an array member
4793 /// * when a lambda-expression captures an array by value
4794 /// * when a decomposition declaration decomposes an array
4795 ///
4796 /// There are two subexpressions: a common expression (the source array)
4797 /// that is evaluated once up-front, and a per-element initializer that
4798 /// runs once for each array element.
4799 ///
4800 /// Within the per-element initializer, the common expression may be referenced
4801 /// via an OpaqueValueExpr, and the current index may be obtained via an
4802 /// ArrayInitIndexExpr.
4803 class ArrayInitLoopExpr : public Expr {
4804 Stmt *SubExprs[2];
4805
4806 explicit ArrayInitLoopExpr(EmptyShell Empty)
4807 : Expr(ArrayInitLoopExprClass, Empty), SubExprs{} {}
4808
4809 public:
4810 explicit ArrayInitLoopExpr(QualType T, Expr *CommonInit, Expr *ElementInit)
4811 : Expr(ArrayInitLoopExprClass, T, VK_RValue, OK_Ordinary, false,
4812 CommonInit->isValueDependent() || ElementInit->isValueDependent(),
4813 T->isInstantiationDependentType(),
4814 CommonInit->containsUnexpandedParameterPack() ||
4815 ElementInit->containsUnexpandedParameterPack()),
4816 SubExprs{CommonInit, ElementInit} {}
4817
4818 /// Get the common subexpression shared by all initializations (the source
4819 /// array).
4820 OpaqueValueExpr *getCommonExpr() const {
4821 return cast<OpaqueValueExpr>(SubExprs[0]);
4822 }
4823
4824 /// Get the initializer to use for each array element.
4825 Expr *getSubExpr() const { return cast<Expr>(SubExprs[1]); }
4826
4827 llvm::APInt getArraySize() const {
4828 return cast<ConstantArrayType>(getType()->castAsArrayTypeUnsafe())
4829 ->getSize();
4830 }
4831
4832 static bool classof(const Stmt *S) {
4833 return S->getStmtClass() == ArrayInitLoopExprClass;
4834 }
4835
4836 SourceLocation getBeginLoc() const LLVM_READONLY {
4837 return getCommonExpr()->getBeginLoc();
4838 }
4839 SourceLocation getEndLoc() const LLVM_READONLY {
4840 return getCommonExpr()->getEndLoc();
4841 }
4842
4843 child_range children() {
4844 return child_range(SubExprs, SubExprs + 2);
4845 }
4846 const_child_range children() const {
4847 return const_child_range(SubExprs, SubExprs + 2);
4848 }
4849
4850 friend class ASTReader;
4851 friend class ASTStmtReader;
4852 friend class ASTStmtWriter;
4853 };
4854
4855 /// Represents the index of the current element of an array being
4856 /// initialized by an ArrayInitLoopExpr. This can only appear within the
4857 /// subexpression of an ArrayInitLoopExpr.
4858 class ArrayInitIndexExpr : public Expr {
4859 explicit ArrayInitIndexExpr(EmptyShell Empty)
4860 : Expr(ArrayInitIndexExprClass, Empty) {}
4861
4862 public:
4863 explicit ArrayInitIndexExpr(QualType T)
4864 : Expr(ArrayInitIndexExprClass, T, VK_RValue, OK_Ordinary,
4865 false, false, false, false) {}
4866
4867 static bool classof(const Stmt *S) {
4868 return S->getStmtClass() == ArrayInitIndexExprClass;
4869 }
4870
4871 SourceLocation getBeginLoc() const LLVM_READONLY { return SourceLocation(); }
4872 SourceLocation getEndLoc() const LLVM_READONLY { return SourceLocation(); }
4873
4874 child_range children() {
4875 return child_range(child_iterator(), child_iterator());
4876 }
4877 const_child_range children() const {
4878 return const_child_range(const_child_iterator(), const_child_iterator());
4879 }
4880
4881 friend class ASTReader;
4882 friend class ASTStmtReader;
4883 };
4884
4885 /// Represents an implicitly-generated value initialization of
4886 /// an object of a given type.
4887 ///
4888 /// Implicit value initializations occur within semantic initializer
4889 /// list expressions (InitListExpr) as placeholders for subobject
4890 /// initializations not explicitly specified by the user.
4891 ///
4892 /// \see InitListExpr
4893 class ImplicitValueInitExpr : public Expr {
4894 public:
4895 explicit ImplicitValueInitExpr(QualType ty)
4896 : Expr(ImplicitValueInitExprClass, ty, VK_RValue, OK_Ordinary,
4897 false, false, ty->isInstantiationDependentType(), false) { }
4898
4899 /// Construct an empty implicit value initialization.
4900 explicit ImplicitValueInitExpr(EmptyShell Empty)
4901 : Expr(ImplicitValueInitExprClass, Empty) { }
4902
4903 static bool classof(const Stmt *T) {
4904 return T->getStmtClass() == ImplicitValueInitExprClass;
4905 }
4906
4907 SourceLocation getBeginLoc() const LLVM_READONLY { return SourceLocation(); }
4908 SourceLocation getEndLoc() const LLVM_READONLY { return SourceLocation(); }
4909
4910 // Iterators
4911 child_range children() {
4912 return child_range(child_iterator(), child_iterator());
4913 }
4914 const_child_range children() const {
4915 return const_child_range(const_child_iterator(), const_child_iterator());
4916 }
4917 };
4918
4919 class ParenListExpr final
4920 : public Expr,
4921 private llvm::TrailingObjects<ParenListExpr, Stmt *> {
4922 friend class ASTStmtReader;
4923 friend TrailingObjects;
4924
4925 /// The location of the left and right parentheses.
4926 SourceLocation LParenLoc, RParenLoc;
4927
4928 /// Build a paren list.
4929 ParenListExpr(SourceLocation LParenLoc, ArrayRef<Expr *> Exprs,
4930 SourceLocation RParenLoc);
4931
4932 /// Build an empty paren list.
4933 ParenListExpr(EmptyShell Empty, unsigned NumExprs);
4934
4935 public:
4936 /// Create a paren list.
4937 static ParenListExpr *Create(const ASTContext &Ctx, SourceLocation LParenLoc,
4938 ArrayRef<Expr *> Exprs,
4939 SourceLocation RParenLoc);
4940
4941 /// Create an empty paren list.
4942 static ParenListExpr *CreateEmpty(const ASTContext &Ctx, unsigned NumExprs);
4943
4944 /// Return the number of expressions in this paren list.
4945 unsigned getNumExprs() const { return ParenListExprBits.NumExprs; }
4946
4947 Expr *getExpr(unsigned Init) {
4948 assert(Init < getNumExprs() && "Initializer access out of range!");
4949 return getExprs()[Init];
4950 }
4951
4952 const Expr *getExpr(unsigned Init) const {
4953 return const_cast<ParenListExpr *>(this)->getExpr(Init);
4954 }
4955
4956 Expr **getExprs() {
4957 return reinterpret_cast<Expr **>(getTrailingObjects<Stmt *>());
4958 }
4959
4960 ArrayRef<Expr *> exprs() {
4961 return llvm::makeArrayRef(getExprs(), getNumExprs());
4962 }
4963
4964 SourceLocation getLParenLoc() const { return LParenLoc; }
4965 SourceLocation getRParenLoc() const { return RParenLoc; }
4966 SourceLocation getBeginLoc() const { return getLParenLoc(); }
4967 SourceLocation getEndLoc() const { return getRParenLoc(); }
4968
4969 static bool classof(const Stmt *T) {
4970 return T->getStmtClass() == ParenListExprClass;
4971 }
4972
4973 // Iterators
4974 child_range children() {
4975 return child_range(getTrailingObjects<Stmt *>(),
4976 getTrailingObjects<Stmt *>() + getNumExprs());
4977 }
4978 const_child_range children() const {
4979 return const_child_range(getTrailingObjects<Stmt *>(),
4980 getTrailingObjects<Stmt *>() + getNumExprs());
4981 }
4982 };
4983
4984 /// Represents a C11 generic selection.
4985 ///
4986 /// A generic selection (C11 6.5.1.1) contains an unevaluated controlling
4987 /// expression, followed by one or more generic associations. Each generic
4988 /// association specifies a type name and an expression, or "default" and an
4989 /// expression (in which case it is known as a default generic association).
4990 /// The type and value of the generic selection are identical to those of its
4991 /// result expression, which is defined as the expression in the generic
4992 /// association with a type name that is compatible with the type of the
4993 /// controlling expression, or the expression in the default generic association
4994 /// if no types are compatible. For example:
4995 ///
4996 /// @code
4997 /// _Generic(X, double: 1, float: 2, default: 3)
4998 /// @endcode
4999 ///
5000 /// The above expression evaluates to 1 if 1.0 is substituted for X, 2 if 1.0f
5001 /// or 3 if "hello".
5002 ///
5003 /// As an extension, generic selections are allowed in C++, where the following
5004 /// additional semantics apply:
5005 ///
5006 /// Any generic selection whose controlling expression is type-dependent or
5007 /// which names a dependent type in its association list is result-dependent,
5008 /// which means that the choice of result expression is dependent.
5009 /// Result-dependent generic associations are both type- and value-dependent.
5010 class GenericSelectionExpr : public Expr {
5011 enum { CONTROLLING, END_EXPR };
5012 TypeSourceInfo **AssocTypes;
5013 Stmt **SubExprs;
5014 unsigned NumAssocs, ResultIndex;
5015 SourceLocation GenericLoc, DefaultLoc, RParenLoc;
5016
5017 public:
5018 GenericSelectionExpr(const ASTContext &Context,
5019 SourceLocation GenericLoc, Expr *ControllingExpr,
5020 ArrayRef<TypeSourceInfo*> AssocTypes,
5021 ArrayRef<Expr*> AssocExprs,
5022 SourceLocation DefaultLoc, SourceLocation RParenLoc,
5023 bool ContainsUnexpandedParameterPack,
5024 unsigned ResultIndex);
5025
5026 /// This constructor is used in the result-dependent case.
5027 GenericSelectionExpr(const ASTContext &Context,
5028 SourceLocation GenericLoc, Expr *ControllingExpr,
5029 ArrayRef<TypeSourceInfo*> AssocTypes,
5030 ArrayRef<Expr*> AssocExprs,
5031 SourceLocation DefaultLoc, SourceLocation RParenLoc,
5032 bool ContainsUnexpandedParameterPack);
5033
5034 explicit GenericSelectionExpr(EmptyShell Empty)
5035 : Expr(GenericSelectionExprClass, Empty) { }
5036
5037 unsigned getNumAssocs() const { return NumAssocs; }
5038
5039 SourceLocation getGenericLoc() const { return GenericLoc; }
5040 SourceLocation getDefaultLoc() const { return DefaultLoc; }
5041 SourceLocation getRParenLoc() const { return RParenLoc; }
5042
5043 const Expr *getAssocExpr(unsigned i) const {
5044 return cast<Expr>(SubExprs[END_EXPR+i]);
5045 }
5046 Expr *getAssocExpr(unsigned i) { return cast<Expr>(SubExprs[END_EXPR+i]); }
5047 ArrayRef<Expr *> getAssocExprs() const {
5048 return NumAssocs
5049 ? llvm::makeArrayRef(
5050 &reinterpret_cast<Expr **>(SubExprs)[END_EXPR], NumAssocs)
5051 : None;
5052 }
5053 const TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) const {
5054 return AssocTypes[i];
5055 }
5056 TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) { return AssocTypes[i]; }
5057 ArrayRef<TypeSourceInfo *> getAssocTypeSourceInfos() const {
5058 return NumAssocs ? llvm::makeArrayRef(&AssocTypes[0], NumAssocs) : None;
5059 }
5060
5061 QualType getAssocType(unsigned i) const {
5062 if (const TypeSourceInfo *TS = getAssocTypeSourceInfo(i))
5063 return TS->getType();
5064 else
5065 return QualType();
5066 }
5067
5068 const Expr *getControllingExpr() const {
5069 return cast<Expr>(SubExprs[CONTROLLING]);
5070 }
5071 Expr *getControllingExpr() { return cast<Expr>(SubExprs[CONTROLLING]); }
5072
5073 /// Whether this generic selection is result-dependent.
5074 bool isResultDependent() const { return ResultIndex == -1U; }
5075
5076 /// The zero-based index of the result expression's generic association in
5077 /// the generic selection's association list. Defined only if the
5078 /// generic selection is not result-dependent.
5079 unsigned getResultIndex() const {
5080 assert(!isResultDependent() && "Generic selection is result-dependent");
5081 return ResultIndex;
5082 }
5083
5084 /// The generic selection's result expression. Defined only if the
5085 /// generic selection is not result-dependent.
5086 const Expr *getResultExpr() const { return getAssocExpr(getResultIndex()); }
5087 Expr *getResultExpr() { return getAssocExpr(getResultIndex()); }
5088
5089 SourceLocation getBeginLoc() const LLVM_READONLY { return GenericLoc; }
5090 SourceLocation getEndLoc() const LLVM_READONLY { return RParenLoc; }
5091
5092 static bool classof(const Stmt *T) {
5093 return T->getStmtClass() == GenericSelectionExprClass;
5094 }
5095
5096 child_range children() {
5097 return child_range(SubExprs, SubExprs+END_EXPR+NumAssocs);
5098 }
5099 const_child_range children() const {
5100 return const_child_range(SubExprs, SubExprs + END_EXPR + NumAssocs);
5101 }
5102 friend class ASTStmtReader;
5103 };
5104
5105 //===----------------------------------------------------------------------===//
5106 // Clang Extensions
5107 //===----------------------------------------------------------------------===//
5108
5109 /// ExtVectorElementExpr - This represents access to specific elements of a
5110 /// vector, and may occur on the left hand side or right hand side. For example
5111 /// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector.
5112 ///
5113 /// Note that the base may have either vector or pointer to vector type, just
5114 /// like a struct field reference.
5115 ///
5116 class ExtVectorElementExpr : public Expr {
5117 Stmt *Base;
5118 IdentifierInfo *Accessor;
5119 SourceLocation AccessorLoc;
5120 public:
5121 ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base,
5122 IdentifierInfo &accessor, SourceLocation loc)
5123 : Expr(ExtVectorElementExprClass, ty, VK,
5124 (VK == VK_RValue ? OK_Ordinary : OK_VectorComponent),
5125 base->isTypeDependent(), base->isValueDependent(),
5126 base->isInstantiationDependent(),
5127 base->containsUnexpandedParameterPack()),
5128 Base(base), Accessor(&accessor), AccessorLoc(loc) {}
5129
5130 /// Build an empty vector element expression.
5131 explicit ExtVectorElementExpr(EmptyShell Empty)
5132 : Expr(ExtVectorElementExprClass, Empty) { }
5133
5134 const Expr *getBase() const { return cast<Expr>(Base); }
5135 Expr *getBase() { return cast<Expr>(Base); }
5136 void setBase(Expr *E) { Base = E; }
5137
5138 IdentifierInfo &getAccessor() const { return *Accessor; }
5139 void setAccessor(IdentifierInfo *II) { Accessor = II; }
5140
5141 SourceLocation getAccessorLoc() const { return AccessorLoc; }
5142 void setAccessorLoc(SourceLocation L) { AccessorLoc = L; }
5143
5144 /// getNumElements - Get the number of components being selected.
5145 unsigned getNumElements() const;
5146
5147 /// containsDuplicateElements - Return true if any element access is
5148 /// repeated.
5149 bool containsDuplicateElements() const;
5150
5151 /// getEncodedElementAccess - Encode the elements accessed into an llvm
5152 /// aggregate Constant of ConstantInt(s).
5153 void getEncodedElementAccess(SmallVectorImpl<uint32_t> &Elts) const;
5154
5155 SourceLocation getBeginLoc() const LLVM_READONLY {
5156 return getBase()->getBeginLoc();
5157 }
5158 SourceLocation getEndLoc() const LLVM_READONLY { return AccessorLoc; }
5159
5160 /// isArrow - Return true if the base expression is a pointer to vector,
5161 /// return false if the base expression is a vector.
5162 bool isArrow() const;
5163
5164 static bool classof(const Stmt *T) {
5165 return T->getStmtClass() == ExtVectorElementExprClass;
5166 }
5167
5168 // Iterators
5169 child_range children() { return child_range(&Base, &Base+1); }
5170 const_child_range children() const {
5171 return const_child_range(&Base, &Base + 1);
5172 }
5173 };
5174
5175 /// BlockExpr - Adaptor class for mixing a BlockDecl with expressions.
5176 /// ^{ statement-body } or ^(int arg1, float arg2){ statement-body }
5177 class BlockExpr : public Expr {
5178 protected:
5179 BlockDecl *TheBlock;
5180 public:
5181 BlockExpr(BlockDecl *BD, QualType ty)
5182 : Expr(BlockExprClass, ty, VK_RValue, OK_Ordinary,
5183 ty->isDependentType(), ty->isDependentType(),
5184 ty->isInstantiationDependentType() || BD->isDependentContext(),
5185 false),
5186 TheBlock(BD) {}
5187
5188 /// Build an empty block expression.
5189 explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { }
5190
5191 const BlockDecl *getBlockDecl() const { return TheBlock; }
5192 BlockDecl *getBlockDecl() { return TheBlock; }
5193 void setBlockDecl(BlockDecl *BD) { TheBlock = BD; }
5194
5195 // Convenience functions for probing the underlying BlockDecl.
5196 SourceLocation getCaretLocation() const;
5197 const Stmt *getBody() const;
5198 Stmt *getBody();
5199
5200 SourceLocation getBeginLoc() const LLVM_READONLY {
5201 return getCaretLocation();
5202 }
5203 SourceLocation getEndLoc() const LLVM_READONLY {
5204 return getBody()->getEndLoc();
5205 }
5206
5207 /// getFunctionType - Return the underlying function type for this block.
5208 const FunctionProtoType *getFunctionType() const;
5209
5210 static bool classof(const Stmt *T) {
5211 return T->getStmtClass() == BlockExprClass;
5212 }
5213
5214 // Iterators
5215 child_range children() {
5216 return child_range(child_iterator(), child_iterator());
5217 }
5218 const_child_range children() const {
5219 return const_child_range(const_child_iterator(), const_child_iterator());
5220 }
5221 };
5222
5223 /// AsTypeExpr - Clang builtin function __builtin_astype [OpenCL 6.2.4.2]
5224 /// This AST node provides support for reinterpreting a type to another
5225 /// type of the same size.
5226 class AsTypeExpr : public Expr {
5227 private:
5228 Stmt *SrcExpr;
5229 SourceLocation BuiltinLoc, RParenLoc;
5230
5231 friend class ASTReader;
5232 friend class ASTStmtReader;
5233 explicit AsTypeExpr(EmptyShell Empty) : Expr(AsTypeExprClass, Empty) {}
5234
5235 public:
5236 AsTypeExpr(Expr* SrcExpr, QualType DstType,
5237 ExprValueKind VK, ExprObjectKind OK,
5238 SourceLocation BuiltinLoc, SourceLocation RParenLoc)
5239 : Expr(AsTypeExprClass, DstType, VK, OK,
5240 DstType->isDependentType(),
5241 DstType->isDependentType() || SrcExpr->isValueDependent(),
5242 (DstType->isInstantiationDependentType() ||
5243 SrcExpr->isInstantiationDependent()),
5244 (DstType->containsUnexpandedParameterPack() ||
5245 SrcExpr->containsUnexpandedParameterPack())),
5246 SrcExpr(SrcExpr), BuiltinLoc(BuiltinLoc), RParenLoc(RParenLoc) {}
5247
5248 /// getSrcExpr - Return the Expr to be converted.
5249 Expr *getSrcExpr() const { return cast<Expr>(SrcExpr); }
5250
5251 /// getBuiltinLoc - Return the location of the __builtin_astype token.
5252 SourceLocation getBuiltinLoc() const { return BuiltinLoc; }
5253
5254 /// getRParenLoc - Return the location of final right parenthesis.
5255 SourceLocation getRParenLoc() const { return RParenLoc; }
5256
5257 SourceLocation getBeginLoc() const LLVM_READONLY { return BuiltinLoc; }
5258 SourceLocation getEndLoc() const LLVM_READONLY { return RParenLoc; }
5259
5260 static bool classof(const Stmt *T) {
5261 return T->getStmtClass() == AsTypeExprClass;
5262 }
5263
5264 // Iterators
5265 child_range children() { return child_range(&SrcExpr, &SrcExpr+1); }
5266 const_child_range children() const {
5267 return const_child_range(&SrcExpr, &SrcExpr + 1);
5268 }
5269 };
5270
5271 /// PseudoObjectExpr - An expression which accesses a pseudo-object
5272 /// l-value. A pseudo-object is an abstract object, accesses to which
5273 /// are translated to calls. The pseudo-object expression has a
5274 /// syntactic form, which shows how the expression was actually
5275 /// written in the source code, and a semantic form, which is a series
5276 /// of expressions to be executed in order which detail how the
5277 /// operation is actually evaluated. Optionally, one of the semantic
5278 /// forms may also provide a result value for the expression.
5279 ///
5280 /// If any of the semantic-form expressions is an OpaqueValueExpr,
5281 /// that OVE is required to have a source expression, and it is bound
5282 /// to the result of that source expression. Such OVEs may appear
5283 /// only in subsequent semantic-form expressions and as
5284 /// sub-expressions of the syntactic form.
5285 ///
5286 /// PseudoObjectExpr should be used only when an operation can be
5287 /// usefully described in terms of fairly simple rewrite rules on
5288 /// objects and functions that are meant to be used by end-developers.
5289 /// For example, under the Itanium ABI, dynamic casts are implemented
5290 /// as a call to a runtime function called __dynamic_cast; using this
5291 /// class to describe that would be inappropriate because that call is
5292 /// not really part of the user-visible semantics, and instead the
5293 /// cast is properly reflected in the AST and IR-generation has been
5294 /// taught to generate the call as necessary. In contrast, an
5295 /// Objective-C property access is semantically defined to be
5296 /// equivalent to a particular message send, and this is very much
5297 /// part of the user model. The name of this class encourages this
5298 /// modelling design.
5299 class PseudoObjectExpr final
5300 : public Expr,
5301 private llvm::TrailingObjects<PseudoObjectExpr, Expr *> {
5302 // PseudoObjectExprBits.NumSubExprs - The number of sub-expressions.
5303 // Always at least two, because the first sub-expression is the
5304 // syntactic form.
5305
5306 // PseudoObjectExprBits.ResultIndex - The index of the
5307 // sub-expression holding the result. 0 means the result is void,
5308 // which is unambiguous because it's the index of the syntactic
5309 // form. Note that this is therefore 1 higher than the value passed
5310 // in to Create, which is an index within the semantic forms.
5311 // Note also that ASTStmtWriter assumes this encoding.
5312
5313 Expr **getSubExprsBuffer() { return getTrailingObjects<Expr *>(); }
5314 const Expr * const *getSubExprsBuffer() const {
5315 return getTrailingObjects<Expr *>();
5316 }
5317
5318 PseudoObjectExpr(QualType type, ExprValueKind VK,
5319 Expr *syntactic, ArrayRef<Expr*> semantic,
5320 unsigned resultIndex);
5321
5322 PseudoObjectExpr(EmptyShell shell, unsigned numSemanticExprs);
5323
5324 unsigned getNumSubExprs() const {
5325 return PseudoObjectExprBits.NumSubExprs;
5326 }
5327
5328 public:
5329 /// NoResult - A value for the result index indicating that there is
5330 /// no semantic result.
5331 enum : unsigned { NoResult = ~0U };
5332
5333 static PseudoObjectExpr *Create(const ASTContext &Context, Expr *syntactic,
5334 ArrayRef<Expr*> semantic,
5335 unsigned resultIndex);
5336
5337 static PseudoObjectExpr *Create(const ASTContext &Context, EmptyShell shell,
5338 unsigned numSemanticExprs);
5339
5340 /// Return the syntactic form of this expression, i.e. the
5341 /// expression it actually looks like. Likely to be expressed in
5342 /// terms of OpaqueValueExprs bound in the semantic form.
5343 Expr *getSyntacticForm() { return getSubExprsBuffer()[0]; }
5344 const Expr *getSyntacticForm() const { return getSubExprsBuffer()[0]; }
5345
5346 /// Return the index of the result-bearing expression into the semantics
5347 /// expressions, or PseudoObjectExpr::NoResult if there is none.
5348 unsigned getResultExprIndex() const {
5349 if (PseudoObjectExprBits.ResultIndex == 0) return NoResult;
5350 return PseudoObjectExprBits.ResultIndex - 1;
5351 }
5352
5353 /// Return the result-bearing expression, or null if there is none.
5354 Expr *getResultExpr() {
5355 if (PseudoObjectExprBits.ResultIndex == 0)
5356 return nullptr;
5357 return getSubExprsBuffer()[PseudoObjectExprBits.ResultIndex];
5358 }
5359 const Expr *getResultExpr() const {
5360 return const_cast<PseudoObjectExpr*>(this)->getResultExpr();
5361 }
5362
5363 unsigned getNumSemanticExprs() const { return getNumSubExprs() - 1; }
5364
5365 typedef Expr * const *semantics_iterator;
5366 typedef const Expr * const *const_semantics_iterator;
5367 semantics_iterator semantics_begin() {
5368 return getSubExprsBuffer() + 1;
5369 }
5370 const_semantics_iterator semantics_begin() const {
5371 return getSubExprsBuffer() + 1;
5372 }
5373 semantics_iterator semantics_end() {
5374 return getSubExprsBuffer() + getNumSubExprs();
5375 }
5376 const_semantics_iterator semantics_end() const {
5377 return getSubExprsBuffer() + getNumSubExprs();
5378 }
5379
5380 llvm::iterator_range<semantics_iterator> semantics() {
5381 return llvm::make_range(semantics_begin(), semantics_end());
5382 }
5383 llvm::iterator_range<const_semantics_iterator> semantics() const {
5384 return llvm::make_range(semantics_begin(), semantics_end());
5385 }
5386
5387 Expr *getSemanticExpr(unsigned index) {
5388 assert(index + 1 < getNumSubExprs());
5389 return getSubExprsBuffer()[index + 1];
5390 }
5391 const Expr *getSemanticExpr(unsigned index) const {
5392 return const_cast<PseudoObjectExpr*>(this)->getSemanticExpr(index);
5393 }
5394
5395 SourceLocation getExprLoc() const LLVM_READONLY {
5396 return getSyntacticForm()->getExprLoc();
5397 }
5398
5399 SourceLocation getBeginLoc() const LLVM_READONLY {
5400 return getSyntacticForm()->getBeginLoc();
5401 }
5402 SourceLocation getEndLoc() const LLVM_READONLY {
5403 return getSyntacticForm()->getEndLoc();
5404 }
5405
5406 child_range children() {
5407 const_child_range CCR =
5408 const_cast<const PseudoObjectExpr *>(this)->children();
5409 return child_range(cast_away_const(CCR.begin()),
5410 cast_away_const(CCR.end()));
5411 }
5412 const_child_range children() const {
5413 Stmt *const *cs = const_cast<Stmt *const *>(
5414 reinterpret_cast<const Stmt *const *>(getSubExprsBuffer()));
5415 return const_child_range(cs, cs + getNumSubExprs());
5416 }
5417
5418 static bool classof(const Stmt *T) {
5419 return T->getStmtClass() == PseudoObjectExprClass;
5420 }
5421
5422 friend TrailingObjects;
5423 friend class ASTStmtReader;
5424 };
5425
5426 /// AtomicExpr - Variadic atomic builtins: __atomic_exchange, __atomic_fetch_*,
5427 /// __atomic_load, __atomic_store, and __atomic_compare_exchange_*, for the
5428 /// similarly-named C++11 instructions, and __c11 variants for <stdatomic.h>,
5429 /// and corresponding __opencl_atomic_* for OpenCL 2.0.
5430 /// All of these instructions take one primary pointer, at least one memory
5431 /// order. The instructions for which getScopeModel returns non-null value
5432 /// take one synch scope.
5433 class AtomicExpr : public Expr {
5434 public:
5435 enum AtomicOp {
5436 #define BUILTIN(ID, TYPE, ATTRS)
5437 #define ATOMIC_BUILTIN(ID, TYPE, ATTRS) AO ## ID,
5438 #include "clang/Basic/Builtins.def"
5439 // Avoid trailing comma
5440 BI_First = 0
5441 };
5442
5443 private:
5444 /// Location of sub-expressions.
5445 /// The location of Scope sub-expression is NumSubExprs - 1, which is
5446 /// not fixed, therefore is not defined in enum.
5447 enum { PTR, ORDER, VAL1, ORDER_FAIL, VAL2, WEAK, END_EXPR };
5448 Stmt *SubExprs[END_EXPR + 1];
5449 unsigned NumSubExprs;
5450 SourceLocation BuiltinLoc, RParenLoc;
5451 AtomicOp Op;
5452
5453 friend class ASTStmtReader;
5454 public:
5455 AtomicExpr(SourceLocation BLoc, ArrayRef<Expr*> args, QualType t,
5456 AtomicOp op, SourceLocation RP);
5457
5458 /// Determine the number of arguments the specified atomic builtin
5459 /// should have.
5460 static unsigned getNumSubExprs(AtomicOp Op);
5461
5462 /// Build an empty AtomicExpr.
5463 explicit AtomicExpr(EmptyShell Empty) : Expr(AtomicExprClass, Empty) { }
5464
5465 Expr *getPtr() const {
5466 return cast<Expr>(SubExprs[PTR]);
5467 }
5468 Expr *getOrder() const {
5469 return cast<Expr>(SubExprs[ORDER]);
5470 }
5471 Expr *getScope() const {
5472 assert(getScopeModel() && "No scope");
5473 return cast<Expr>(SubExprs[NumSubExprs - 1]);
5474 }
5475 Expr *getVal1() const {
5476 if (Op == AO__c11_atomic_init || Op == AO__opencl_atomic_init)
5477 return cast<Expr>(SubExprs[ORDER]);
5478 assert(NumSubExprs > VAL1);
5479 return cast<Expr>(SubExprs[VAL1]);
5480 }
5481 Expr *getOrderFail() const {
5482 assert(NumSubExprs > ORDER_FAIL);
5483 return cast<Expr>(SubExprs[ORDER_FAIL]);
5484 }
5485 Expr *getVal2() const {
5486 if (Op == AO__atomic_exchange)
5487 return cast<Expr>(SubExprs[ORDER_FAIL]);
5488 assert(NumSubExprs > VAL2);
5489 return cast<Expr>(SubExprs[VAL2]);
5490 }
5491 Expr *getWeak() const {
5492 assert(NumSubExprs > WEAK);
5493 return cast<Expr>(SubExprs[WEAK]);
5494 }
5495 QualType getValueType() const;
5496
5497 AtomicOp getOp() const { return Op; }
5498 unsigned getNumSubExprs() const { return NumSubExprs; }
5499
5500 Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); }
5501 const Expr * const *getSubExprs() const {
5502 return reinterpret_cast<Expr * const *>(SubExprs);
5503 }
5504
5505 bool isVolatile() const {
5506 return getPtr()->getType()->getPointeeType().isVolatileQualified();
5507 }
5508
5509 bool isCmpXChg() const {
5510 return getOp() == AO__c11_atomic_compare_exchange_strong ||
5511 getOp() == AO__c11_atomic_compare_exchange_weak ||
5512 getOp() == AO__opencl_atomic_compare_exchange_strong ||
5513 getOp() == AO__opencl_atomic_compare_exchange_weak ||
5514 getOp() == AO__atomic_compare_exchange ||
5515 getOp() == AO__atomic_compare_exchange_n;
5516 }
5517
5518 bool isOpenCL() const {
5519 return getOp() >= AO__opencl_atomic_init &&
5520 getOp() <= AO__opencl_atomic_fetch_max;
5521 }
5522
5523 SourceLocation getBuiltinLoc() const { return BuiltinLoc; }
5524 SourceLocation getRParenLoc() const { return RParenLoc; }
5525
5526 SourceLocation getBeginLoc() const LLVM_READONLY { return BuiltinLoc; }
5527 SourceLocation getEndLoc() const LLVM_READONLY { return RParenLoc; }
5528
5529 static bool classof(const Stmt *T) {
5530 return T->getStmtClass() == AtomicExprClass;
5531 }
5532
5533 // Iterators
5534 child_range children() {
5535 return child_range(SubExprs, SubExprs+NumSubExprs);
5536 }
5537 const_child_range children() const {
5538 return const_child_range(SubExprs, SubExprs + NumSubExprs);
5539 }
5540
5541 /// Get atomic scope model for the atomic op code.
5542 /// \return empty atomic scope model if the atomic op code does not have
5543 /// scope operand.
5544 static std::unique_ptr<AtomicScopeModel> getScopeModel(AtomicOp Op) {
5545 auto Kind =
5546 (Op >= AO__opencl_atomic_load && Op <= AO__opencl_atomic_fetch_max)
5547 ? AtomicScopeModelKind::OpenCL
5548 : AtomicScopeModelKind::None;
5549 return AtomicScopeModel::create(Kind);
5550 }
5551
5552 /// Get atomic scope model.
5553 /// \return empty atomic scope model if this atomic expression does not have
5554 /// scope operand.
5555 std::unique_ptr<AtomicScopeModel> getScopeModel() const {
5556 return getScopeModel(getOp());
5557 }
5558 };
5559
5560 /// TypoExpr - Internal placeholder for expressions where typo correction
5561 /// still needs to be performed and/or an error diagnostic emitted.
5562 class TypoExpr : public Expr {
5563 public:
5564 TypoExpr(QualType T)
5565 : Expr(TypoExprClass, T, VK_LValue, OK_Ordinary,
5566 /*isTypeDependent*/ true,
5567 /*isValueDependent*/ true,
5568 /*isInstantiationDependent*/ true,
5569 /*containsUnexpandedParameterPack*/ false) {
5570 assert(T->isDependentType() && "TypoExpr given a non-dependent type");
5571 }
5572
5573 child_range children() {
5574 return child_range(child_iterator(), child_iterator());
5575 }
5576 const_child_range children() const {
5577 return const_child_range(const_child_iterator(), const_child_iterator());
5578 }
5579
5580 SourceLocation getBeginLoc() const LLVM_READONLY { return SourceLocation(); }
5581 SourceLocation getEndLoc() const LLVM_READONLY { return SourceLocation(); }
5582
5583 static bool classof(const Stmt *T) {
5584 return T->getStmtClass() == TypoExprClass;
5585 }
5586
5587 };
5588 } // end namespace clang
5589
5590 #endif // LLVM_CLANG_AST_EXPR_H
clang::BinaryOperator::setFPFeatures
void setFPFeatures(FPOptions F)
Definition: Expr.h:3457
clang::ObjCPropertyRefExpr
ObjCPropertyRefExpr - A dot-syntax expression to access an ObjC property.
Definition: ExprObjC.h:577
clang::PseudoObjectExpr::getNumSemanticExprs
unsigned getNumSemanticExprs() const
Definition: Expr.h:5363
clang::FullExpr::getSubExpr
const Expr * getSubExpr() const
Definition: Expr.h:890
clang::InitListExpr::hasArrayFiller
bool hasArrayFiller() const
Return true if this is an array initializer and its array "filler" has been set.
Definition: Expr.h:4289
clang::Expr::LV_IncompleteVoidType
Definition: Expr.h:257
clang::DesignatedInitExpr::Designator
Represents a single C99 designator.
Definition: Expr.h:4494
clang::DeclRefExpr::getNumTemplateArgs
unsigned getNumTemplateArgs() const
Retrieve the number of template arguments provided as part of this template-id.
Definition: Expr.h:1215
clang::BlockExpr::children
child_range children()
Definition: Expr.h:5215
clang::TypoExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:5580
clang::AtomicExpr::getVal2
Expr * getVal2() const
Definition: Expr.h:5485
clang::Builtin::ID
ID
Definition: Builtins.h:49
clang::Expr::setValueDependent
void setValueDependent(bool VD)
Set whether this expression is value-dependent or not.
Definition: Expr.h:152
clang::CStyleCastExpr::TrailingObjects
friend TrailingObjects
Definition: Expr.h:3265
clang::Stmt::APFloatSemantics
APFloatSemantics
Definition: Stmt.h:351
clang::BlockExpr::getBlockDecl
const BlockDecl * getBlockDecl() const
Definition: Expr.h:5191
clang::CastExpr::children
const_child_range children() const
Definition: Expr.h:3092
clang::CallExpr::isCallToStdMove
bool isCallToStdMove() const
Definition: Expr.h:2645
clang::CharacterLiteral::Ascii
Definition: Expr.h:1395
clang::UnaryOperator::isIncrementOp
bool isIncrementOp() const
Definition: Expr.h:1958
clang::CastExpr::path_empty
bool path_empty() const
Definition: Expr.h:3068
clang::ChooseExpr::getChosenSubExpr
Expr * getChosenSubExpr() const
getChosenSubExpr - Return the subexpression chosen according to the condition.
Definition: Expr.h:4018
clang::DesignatedInitUpdateExpr::children
const_child_range children() const
Definition: Expr.h:4781
clang::FunctionDecl
Represents a function declaration or definition.
Definition: Decl.h:1738
clang::DeclRefExpr::getFoundDecl
NamedDecl * getFoundDecl()
Get the NamedDecl through which this reference occurred.
Definition: Expr.h:1151
clang::PredefinedExpr::getFunctionName
const StringLiteral * getFunctionName() const
Definition: Expr.h:1819
clang::StmtExpr::setSubStmt
void setSubStmt(CompoundStmt *S)
Definition: Expr.h:3819
clang::CallExpr::getArgs
Expr ** getArgs()
Retrieve the call arguments.
Definition: Expr.h:2543
clang::BuiltinType::Kind
Kind
Definition: Type.h:2393
Diag
static DiagnosticBuilder Diag(DiagnosticsEngine *Diags, const LangOptions &Features, FullSourceLoc TokLoc, const char *TokBegin, const char *TokRangeBegin, const char *TokRangeEnd, unsigned DiagID)
Produce a diagnostic highlighting some portion of a literal.
Definition: LiteralSupport.cpp:78
clang::BlockExpr::BlockExpr
BlockExpr(EmptyShell Empty)
Build an empty block expression.
Definition: Expr.h:5189
clang::ConditionalOperator::getLHS
Expr * getLHS() const
Definition: Expr.h:3627
clang::UnaryOperator::children
child_range children()
Definition: Expr.h:2004
Identifier
StringRef Identifier
Definition: Format.cpp:1636
clang::BlockExpr::TheBlock
BlockDecl * TheBlock
Definition: Expr.h:5179
clang::ImplicitCastExpr::ImplicitCastExpr
ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, ExprValueKind VK)
Definition: Expr.h:3129
clang::PseudoObjectExpr::getSyntacticForm
Expr * getSyntacticForm()
Return the syntactic form of this expression, i.e.
Definition: Expr.h:5343
clang::CharacterLiteral::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:1424
clang::MemberExpr::hasTemplateKeyword
bool hasTemplateKeyword() const
Determines whether the member name was preceded by the template keyword.
Definition: Expr.h:2830
clang::Expr::Classification::CL_ObjCMessageRValue
Definition: Expr.h:316
clang::InitListExpr::rbegin
reverse_iterator rbegin()
Definition: Expr.h:4390
clang::CallExpr::getRParenLoc
SourceLocation getRParenLoc() const
Definition: Expr.h:2635
clang::DeclRefExpr::getTemplateArgs
const TemplateArgumentLoc * getTemplateArgs() const
Retrieve the template arguments provided as part of this template-id.
Definition: Expr.h:1207
clang::ArraySubscriptExpr::children
child_range children()
Definition: Expr.h:2382
clang::SourceLocation::getRawEncoding
unsigned getRawEncoding() const
When a SourceLocation itself cannot be used, this returns an (opaque) 32-bit integer encoding for it...
Definition: SourceLocation.h:146
clang::ArraySubscriptExpr::getIdx
const Expr * getIdx() const
Definition: Expr.h:2359
clang::SubobjectAdjustment::Kind
enum clang::SubobjectAdjustment::@45 Kind
clang::QualType
A (possibly-)qualified type.
Definition: Type.h:638
clang::ArrayInitIndexExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:4872
clang::ArraySubscriptExpr::getBase
Expr * getBase()
Definition: Expr.h:2355
clang::StringLiteral::getKind
StringKind getKind() const
Definition: Expr.h:1681
clang::MemberExpr::getMemberDecl
ValueDecl * getMemberDecl() const
Retrieve the member declaration to which this expression refers.
Definition: Expr.h:2773
clang::ChooseExpr::getCond
Expr * getCond() const
Definition: Expr.h:4022
clang::UnaryExprOrTypeTraitExpr::setOperatorLoc
void setOperatorLoc(SourceLocation L)
Definition: Expr.h:2290
clang::BinaryOperator::getOpForCompoundAssignment
static Opcode getOpForCompoundAssignment(Opcode Opc)
Definition: Expr.h:3421
clang::CallExpr::getArg
Expr * getArg(unsigned Arg)
getArg - Return the specified argument.
Definition: Expr.h:2553
clang::BinaryOperator::getExprLoc
SourceLocation getExprLoc() const
Definition: Expr.h:3318
clang::MemberExpr::setArrow
void setArrow(bool A)
Definition: Expr.h:2875
clang::FloatingLiteral::setRawSemantics
void setRawSemantics(APFloatSemantics Sem)
Set the raw enumeration value representing the floating-point semantics of this literal (32-bit IEEE...
Definition: Expr.h:1475
TypeTraits.h
Defines enumerations for the type traits support.
clang::ParenExpr::getLParen
SourceLocation getLParen() const
Get the location of the left parentheses &#39;(&#39;.
Definition: Expr.h:1868
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SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:4839
clang::Expr::Expr
Expr(StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, bool TD, bool VD, bool ID, bool ContainsUnexpandedParameterPack)
Definition: Expr.h:110
clang::ShuffleVectorExpr::getExpr
Expr * getExpr(unsigned Index)
getExpr - Return the Expr at the specified index.
Definition: Expr.h:3886
clang::APFloatStorage::getValue
llvm::APFloat getValue(const llvm::fltSemantics &Semantics) const
Definition: Expr.h:1300
clang::DesignatedInitExpr::Designator::Designator
Designator(unsigned Index, SourceLocation LBracketLoc, SourceLocation RBracketLoc)
Initializes an array designator.
Definition: Expr.h:4523
clang::DesignatedInitExpr::FieldDesignator::FieldLoc
unsigned FieldLoc
The location of the field name in the designated initializer.
Definition: Expr.h:4471
clang::CharacterLiteral::CharacterLiteral
CharacterLiteral(EmptyShell Empty)
Construct an empty character literal.
Definition: Expr.h:1416
clang::ShuffleVectorExpr::getNumSubExprs
unsigned getNumSubExprs() const
getNumSubExprs - Return the size of the SubExprs array.
Definition: Expr.h:3880
clang::GenericSelectionExpr::getResultIndex
unsigned getResultIndex() const
The zero-based index of the result expression&#39;s generic association in the generic selection&#39;s associ...
Definition: Expr.h:5079
clang::GenericSelectionExpr::getResultExpr
Expr * getResultExpr()
Definition: Expr.h:5087
clang::StmtExpr::getSubStmt
CompoundStmt * getSubStmt()
Definition: Expr.h:3817
clang::InitListExpr::const_iterator
InitExprsTy::const_iterator const_iterator
Definition: Expr.h:4382
clang::ExtVectorElementExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:5158
clang::InitListExpr::getInit
const Expr * getInit(unsigned Init) const
Definition: Expr.h:4233
clang::ArrayInitIndexExpr::classof
static bool classof(const Stmt *S)
Definition: Expr.h:4867
clang::DesignatedInitExpr::Designator::Designator
Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, SourceLocation FieldLoc)
Initializes a field designator.
Definition: Expr.h:4514
clang::GenericSelectionExpr::getControllingExpr
Expr * getControllingExpr()
Definition: Expr.h:5071
clang::ArraySubscriptExpr::setRHS
void setRHS(Expr *E)
Definition: Expr.h:2353
clang::StringLiteral::containsNonAsciiOrNull
bool containsNonAsciiOrNull() const
Definition: Expr.h:1699
isBuiltinAssumeFalse
static bool isBuiltinAssumeFalse(const CFGBlock *B, const Stmt *S, ASTContext &C)
Definition: ReachableCode.cpp:69
clang::UnaryExprOrTypeTraitExpr::Ty
TypeSourceInfo * Ty
Definition: Expr.h:2224
clang::PseudoObjectExpr::semantics_iterator
Expr *const * semantics_iterator
Definition: Expr.h:5365
clang::Stmt
Stmt - This represents one statement.
Definition: Stmt.h:66
clang::CallExpr::getNumArgs
unsigned getNumArgs() const
getNumArgs - Return the number of actual arguments to this call.
Definition: Expr.h:2540
clang::CompoundLiteralExpr::CompoundLiteralExpr
CompoundLiteralExpr(EmptyShell Empty)
Construct an empty compound literal.
Definition: Expr.h:2948
clang::OffsetOfExpr::getOperatorLoc
SourceLocation getOperatorLoc() const
getOperatorLoc - Return the location of the operator.
Definition: Expr.h:2152
clang::ShuffleVectorExpr::getRParenLoc
SourceLocation getRParenLoc() const
Definition: Expr.h:3867
clang::FloatingLiteral::getLocation
SourceLocation getLocation() const
Definition: Expr.h:1493
clang::StmtExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:3821
clang::StmtExpr::StmtExpr
StmtExpr(CompoundStmt *substmt, QualType T, SourceLocation lp, SourceLocation rp)
Definition: Expr.h:3808
clang::BinaryOperator::isFEnvAccessOn
bool isFEnvAccessOn() const
Definition: Expr.h:3473
clang::Expr::hasPlaceholderType
bool hasPlaceholderType() const
Returns whether this expression has a placeholder type.
Definition: Expr.h:472
Base
clang::CallExpr::getRawSubExprs
ArrayRef< Stmt * > getRawSubExprs()
This method provides fast access to all the subexpressions of a CallExpr without going through the sl...
Definition: Expr.h:2604
clang::Expr::LV_InvalidExpression
Definition: Expr.h:259
Type.h
C Language Family Type Representation.
clang::BinaryOperator::isMultiplicativeOp
static bool isMultiplicativeOp(Opcode Opc)
Definition: Expr.h:3359
clang::BinaryOperator::isLogicalOp
bool isLogicalOp() const
Definition: Expr.h:3408
clang::DesignatedInitExpr::Designator::getRBracketLoc
SourceLocation getRBracketLoc() const
Definition: Expr.h:4577
clang::BinaryOperator::setOpcode
void setOpcode(Opcode Opc)
Definition: Expr.h:3325
clang::FloatingLiteral::children
const_child_range children() const
Definition: Expr.h:1507
clang::StringLiteral::isAscii
bool isAscii() const
Definition: Expr.h:1685
clang::Expr::MLV_IncompleteType
Definition: Expr.h:276
clang::ASTVector::rbegin
reverse_iterator rbegin()
Definition: ASTVector.h:104
clang::ChooseExpr::children
const_child_range children() const
Definition: Expr.h:4046
clang::MemberExpr::getBase
Expr * getBase() const
Definition: Expr.h:2767
clang::CompoundLiteralExpr::getTypeSourceInfo
TypeSourceInfo * getTypeSourceInfo() const
Definition: Expr.h:2961
clang::Expr::Classification::CL_MemberFunction
Definition: Expr.h:312
clang::CallExpr::sizeOfTrailingObjects
static unsigned sizeOfTrailingObjects(unsigned NumPreArgs, unsigned NumArgs)
Return the size in bytes needed for the trailing objects.
Definition: Expr.h:2460
clang::Decl
Decl - This represents one declaration (or definition), e.g.
Definition: DeclBase.h:87
clang::IntegerLiteral::classof
static bool classof(const Stmt *T)
Definition: Expr.h:1338
clang::FloatingLiteral::getValue
llvm::APFloat getValue() const
Definition: Expr.h:1459
clang::ArrayInitIndexExpr
Represents the index of the current element of an array being initialized by an ArrayInitLoopExpr.
Definition: Expr.h:4858
clang::isASCII
LLVM_READNONE bool isASCII(char c)
Returns true if this is an ASCII character.
Definition: CharInfo.h:43
clang::Expr::setType
void setType(QualType t)
Definition: Expr.h:129
clang::Expr::ConstExprUsage
ConstExprUsage
Indicates how the constant expression will be used.
Definition: Expr.h:668
clang::UnaryExprOrTypeTraitExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:2295
clang::VAArgExpr::getSubExpr
const Expr * getSubExpr() const
Definition: Expr.h:4109
clang::CallExpr::children
const_child_range children() const
Definition: Expr.h:2662
clang::TypoExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:5581
clang::BinaryOperator::getOpcode
Opcode getOpcode() const
Definition: Expr.h:3322
clang::Expr::Classify
Classification Classify(ASTContext &Ctx) const
Classify - Classify this expression according to the C++11 expression taxonomy.
Definition: Expr.h:377
clang::ImplicitCastExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:3154
clang::SubobjectAdjustment::DTB::BasePath
const CastExpr * BasePath
Definition: Expr.h:69
clang::DesignatedInitExpr::getNumSubExprs
unsigned getNumSubExprs() const
Retrieve the total number of subexpressions in this designated initializer expression, including the actual initialized value and any expressions that occur within array and array-range designators.
Definition: Expr.h:4665
clang::CompoundAssignOperator::setComputationResultType
void setComputationResultType(QualType T)
Definition: Expr.h:3531
clang::ParenExpr
ParenExpr - This represents a parethesized expression, e.g.
Definition: Expr.h:1844
clang::Expr::Classification::CM_Function
Definition: Expr.h:324
clang::AbstractConditionalOperator::getFalseExpr
Expr * getFalseExpr() const
Definition: Expr.h:3750
clang::AttrSyntax::GNU
Is the identifier known as a GNU-style attribute?
clang::MemberExpr::hasQualifier
bool hasQualifier() const
Determines whether this member expression actually had a C++ nested-name-specifier prior to the name ...
Definition: Expr.h:2787
clang::Expr::SE_NoSideEffects
Strictly evaluate the expression.
Definition: Expr.h:596
clang::BinaryOperator::children
child_range children()
Definition: Expr.h:3448
clang::IntegerLiteral
Definition: Expr.h:1308
clang::CallExpr::arg_begin
const_arg_iterator arg_begin() const
Definition: Expr.h:2595
clang::Type
The base class of the type hierarchy.
Definition: Type.h:1407
clang::FullExpr::FullExpr
FullExpr(StmtClass SC, Expr *subexpr)
Definition: Expr.h:881
clang::ImplicitValueInitExpr::ImplicitValueInitExpr
ImplicitValueInitExpr(QualType ty)
Definition: Expr.h:4895
clang::InitListExpr::isSemanticForm
bool isSemanticForm() const
Definition: Expr.h:4335
clang::DeclRefExpr::hasExplicitTemplateArgs
bool hasExplicitTemplateArgs() const
Determines whether this declaration reference was followed by an explicit template argument list...
Definition: Expr.h:1195
clang::Stmt::child_range
llvm::iterator_range< child_iterator > child_range
Definition: Stmt.h:1098
clang::UnaryExprOrTypeTraitExpr::getRParenLoc
SourceLocation getRParenLoc() const
Definition: Expr.h:2292
clang::CastExpr::CastExpr
CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize)
Construct an empty cast.
Definition: Expr.h:3035
clang::BinaryOperator::isShiftOp
static bool isShiftOp(Opcode Opc)
Definition: Expr.h:3365
clang::Expr::getValueKindForType
static ExprValueKind getValueKindForType(QualType T)
getValueKindForType - Given a formal return or parameter type, give its value kind.
Definition: Expr.h:395
clang::DesignatedInitExpr::getDesignator
const Designator * getDesignator(unsigned Idx) const
Definition: Expr.h:4631
clang::ExplicitCastExpr::getTypeInfoAsWritten
TypeSourceInfo * getTypeInfoAsWritten() const
getTypeInfoAsWritten - Returns the type source info for the type that this expression is casting to...
Definition: Expr.h:3208
clang::CallExpr::setADLCallKind
void setADLCallKind(ADLCallKind V=UsesADL)
Definition: Expr.h:2521
clang::BinaryOperator::getFPFeatures
FPOptions getFPFeatures() const
Definition: Expr.h:3461
clang::InitListExpr::iterator
InitExprsTy::iterator iterator
Definition: Expr.h:4381
clang::CStyleCastExpr::getLParenLoc
SourceLocation getLParenLoc() const
Definition: Expr.h:3250
clang::CodeGen::AlignmentSource::Decl
The l-value was an access to a declared entity or something equivalently strong, like the address of ...
clang::TypeSourceInfo
A container of type source information.
Definition: Decl.h:87
clang::ImplicitCastExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:3147
clang::Stmt::IgnoreImplicit
Stmt * IgnoreImplicit()
Skip past any implicit AST nodes which might surround this statement, such as ExprWithCleanups or Imp...
Definition: Stmt.cpp:121
clang::FullExpr::SubExpr
Stmt * SubExpr
Definition: Expr.h:879
clang::UnaryOperator::setCanOverflow
void setCanOverflow(bool C)
Definition: Expr.h:1940
clang::FPOptions
Floating point control options.
Definition: LangOptions.h:307
clang::CStyleCastExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:3256
clang::PredefinedExpr::getIdentKind
IdentKind getIdentKind() const
Definition: Expr.h:1806
clang::GenericSelectionExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:5090
clang::ASTStmtReader
Definition: ASTReaderStmt.cpp:69
clang::CastExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:3085
clang::GenericSelectionExpr::children
const_child_range children() const
Definition: Expr.h:5099
clang::PseudoObjectExpr::getExprLoc
SourceLocation getExprLoc() const LLVM_READONLY
Definition: Expr.h:5395
clang::ImplicitValueInitExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:4908
clang::VAArgExpr::children
const_child_range children() const
Definition: Expr.h:4135
clang::ShuffleVectorExpr::ShuffleVectorExpr
ShuffleVectorExpr(EmptyShell Empty)
Build an empty vector-shuffle expression.
Definition: Expr.h:3861
clang::ExtVectorElementExpr::getAccessorLoc
SourceLocation getAccessorLoc() const
Definition: Expr.h:5141
clang::Expr::Classification::Classification
Classification()
Definition: Expr.h:345
clang::BinaryOperator::BinaryOperator
BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, ExprValueKind VK, ExprObjectKind OK, SourceLocation opLoc, FPOptions FPFeatures)
Definition: Expr.h:3294
clang::GenericSelectionExpr::getResultExpr
const Expr * getResultExpr() const
The generic selection&#39;s result expression.
Definition: Expr.h:5086
clang::MemberExpr::isImplicitAccess
bool isImplicitAccess() const
Determine whether the base of this explicit is implicit.
Definition: Expr.h:2888
clang::ConvertVectorExpr::getRParenLoc
SourceLocation getRParenLoc() const
getRParenLoc - Return the location of final right parenthesis.
Definition: Expr.h:3952
clang::Expr::isModifiableLvalueResult
isModifiableLvalueResult
Definition: Expr.h:269
clang::ImaginaryLiteral::getSubExpr
const Expr * getSubExpr() const
Definition: Expr.h:1529
Value
Value
Definition: UninitializedValues.cpp:102
clang::OffsetOfExpr::getIndexExpr
Expr * getIndexExpr(unsigned Idx)
Definition: Expr.h:2180
clang::OffsetOfExpr::getIndexExpr
const Expr * getIndexExpr(unsigned Idx) const
Definition: Expr.h:2185
clang::CastExpr::path_const_iterator
const CXXBaseSpecifier *const * path_const_iterator
Definition: Expr.h:3067
clang::CharacterLiteral::UTF16
Definition: Expr.h:1398
clang::VarDecl
Represents a variable declaration or definition.
Definition: Decl.h:813
clang::GenericSelectionExpr::GenericSelectionExpr
GenericSelectionExpr(EmptyShell Empty)
Definition: Expr.h:5034
clang::DeclRefExpr::hasTemplateKWAndArgsInfo
bool hasTemplateKWAndArgsInfo() const
Definition: Expr.h:1161
clang::Expr::MLV_LValueCast
Definition: Expr.h:275
clang::ImplicitCastExpr::setIsPartOfExplicitCast
void setIsPartOfExplicitCast(bool PartOfExplicitCast)
Definition: Expr.h:3135
clang::CompoundLiteralExpr
CompoundLiteralExpr - [C99 6.5.2.5].
Definition: Expr.h:2925
clang::DesignatedInitExpr::setSubExpr
void setSubExpr(unsigned Idx, Expr *E)
Definition: Expr.h:4672
clang::UnaryOperator::isArithmeticOp
static bool isArithmeticOp(Opcode Op)
Definition: Expr.h:1974
clang::ast_matchers::expr
const internal::VariadicDynCastAllOfMatcher< Stmt, Expr > expr
Matches expressions.
Definition: ASTMatchersInternal.cpp:690
clang::ArrayInitLoopExpr::getCommonExpr
OpaqueValueExpr * getCommonExpr() const
Get the common subexpression shared by all initializations (the source array).
Definition: Expr.h:4820
clang::Type::getAs
const T * getAs() const
Member-template getAs<specific type>&#39;.
Definition: Type.h:6748
clang::CompoundLiteralExpr::setInitializer
void setInitializer(Expr *E)
Definition: Expr.h:2953
clang::ImplicitValueInitExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:4907
clang::PseudoObjectExpr::getSemanticExpr
const Expr * getSemanticExpr(unsigned index) const
Definition: Expr.h:5391
clang::DesignatedInitExpr::ArrayOrRangeDesignator::EllipsisLoc
unsigned EllipsisLoc
The location of the ellipsis separating the start and end indices.
Definition: Expr.h:4483
clang::CallExpr::arg_range
llvm::iterator_range< arg_iterator > arg_range
Definition: Expr.h:2582
clang::PredefinedExpr::FuncDName
Definition: Expr.h:1773
clang::AbstractConditionalOperator::getColonLoc
SourceLocation getColonLoc() const
Definition: Expr.h:3572
clang::BlockExpr::BlockExpr
BlockExpr(BlockDecl *BD, QualType ty)
Definition: Expr.h:5181
clang::InitListExpr::setInit
void setInit(unsigned Init, Expr *expr)
Definition: Expr.h:4243
clang::AddrLabelExpr::AddrLabelExpr
AddrLabelExpr(EmptyShell Empty)
Build an empty address of a label expression.
Definition: Expr.h:3768
clang::CharacterLiteral::setValue
void setValue(unsigned Val)
Definition: Expr.h:1430
clang::InitListExpr::begin
const_iterator begin() const
Definition: Expr.h:4387
clang::FixedPointLiteral::setLocation
void setLocation(SourceLocation Location)
Definition: Expr.h:1375
clang::ASTVector::size
size_type size() const
Definition: ASTVector.h:110
clang::AtomicExpr::getVal1
Expr * getVal1() const
Definition: Expr.h:5475
clang::ConstantExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:925
clang::AtomicScopeModel::create
static std::unique_ptr< AtomicScopeModel > create(AtomicScopeModelKind K)
Create an atomic scope model by AtomicScopeModelKind.
Definition: SyncScope.h:143
clang::Expr::setContainsUnexpandedParameterPack
void setContainsUnexpandedParameterPack(bool PP=true)
Set the bit that describes whether this expression contains an unexpanded parameter pack...
Definition: Expr.h:220
clang::ConditionalOperator::ConditionalOperator
ConditionalOperator(EmptyShell Empty)
Build an empty conditional operator.
Definition: Expr.h:3611
clang::DesignatedInitExpr::setGNUSyntax
void setGNUSyntax(bool GNU)
Definition: Expr.h:4650
clang::UnaryExprOrTypeTraitExpr::getArgumentTypeInfo
TypeSourceInfo * getArgumentTypeInfo() const
Definition: Expr.h:2262
clang::AddrLabelExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:3776
clang::OffsetOfNode::getSourceRange
SourceRange getSourceRange() const LLVM_READONLY
Retrieve the source range that covers this offsetof node.
Definition: Expr.h:2098
clang::PredefinedExpr::Function
Definition: Expr.h:1771
clang::BinaryOperator::isShiftAssignOp
bool isShiftAssignOp() const
Definition: Expr.h:3432
clang::OffsetOfExpr::getNumExpressions
unsigned getNumExpressions() const
Definition: Expr.h:2195
clang::IntegerLiteral::getLocation
SourceLocation getLocation() const
Retrieve the location of the literal.
Definition: Expr.h:1334
clang::ConstantExpr::ConstantExpr
ConstantExpr(EmptyShell Empty)
Build an empty constant expression wrapper.
Definition: Expr.h:915
clang::BinaryConditionalOperator::children
child_range children()
Definition: Expr.h:3730
clang::OpaqueValueExpr::children
child_range children()
Definition: Expr.h:987
OperationKinds.h
clang::SubobjectAdjustment::P
Definition: Expr.h:73
clang::ArrayInitIndexExpr::children
const_child_range children() const
Definition: Expr.h:4877
clang::BinaryOperator::isAssignmentOp
static bool isAssignmentOp(Opcode Opc)
Definition: Expr.h:3410
clang::MultiVersionKind::Target
clang::StmtExpr::children
child_range children()
Definition: Expr.h:3834
clang::Expr::LV_ClassTemporary
Definition: Expr.h:263
clang::GenericSelectionExpr::getRParenLoc
SourceLocation getRParenLoc() const
Definition: Expr.h:5041
clang::FixedPointLiteral::getLocation
SourceLocation getLocation() const
Retrieve the location of the literal.
Definition: Expr.h:1373
clang::Expr::IgnoreParenNoopCasts
const Expr * IgnoreParenNoopCasts(ASTContext &Ctx) const LLVM_READONLY
Definition: Expr.h:834
clang::BinaryOperator::isAdditiveOp
bool isAdditiveOp() const
Definition: Expr.h:3364
clang::BinaryOperator::isEqualityOp
bool isEqualityOp() const
Definition: Expr.h:3375
clang::ChooseExpr::getBuiltinLoc
SourceLocation getBuiltinLoc() const
Definition: Expr.h:4029
clang::CompoundLiteralExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:2968
clang::AddrLabelExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:3777
clang::Expr::isXValue
bool isXValue() const
Definition: Expr.h:251
clang::InitListExpr::end
iterator end()
Definition: Expr.h:4388
clang::NamedDecl::getIdentifier
IdentifierInfo * getIdentifier() const
Get the identifier that names this declaration, if there is one.
Definition: Decl.h:270
clang::ArraySubscriptExpr::getBase
const Expr * getBase() const
Definition: Expr.h:2356
clang::Expr::IgnoreImpCasts
Expr * IgnoreImpCasts() LLVM_READONLY
IgnoreImpCasts - Skip past any implicit casts which might surround this expression.
Definition: Expr.h:3162
clang::ParenExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:1875
clang::NoInitExpr::children
const_child_range children() const
Definition: Expr.h:4733
clang::AtomicExpr::AtomicOp
AtomicOp
Definition: Expr.h:5435
clang::DesignatedInitExpr::Designator::getDotLoc
SourceLocation getDotLoc() const
Definition: Expr.h:4561
clang::RecordDecl
Represents a struct/union/class.
Definition: Decl.h:3593
clang::InitListExpr::const_reverse_iterator
InitExprsTy::const_reverse_iterator const_reverse_iterator
Definition: Expr.h:4384
clang::DesignatedInitExpr
Represents a C99 designated initializer expression.
Definition: Expr.h:4419
clang::AbstractConditionalOperator::AbstractConditionalOperator
AbstractConditionalOperator(StmtClass SC, EmptyShell Empty)
Definition: Expr.h:3554
clang::Expr::isOrdinaryOrBitFieldObject
bool isOrdinaryOrBitFieldObject() const
Definition: Expr.h:416
clang::NamedDecl::getDeclName
DeclarationName getDeclName() const
Get the actual, stored name of the declaration, which may be a special name.
Definition: Decl.h:298
clang::UnaryExprOrTypeTraitExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:2298
clang::StringLiteral::Create
static StringLiteral * Create(const ASTContext &Ctx, StringRef Str, StringKind Kind, bool Pascal, QualType Ty, SourceLocation Loc)
Simple constructor for string literals made from one token.
Definition: Expr.h:1638
clang::IdentifierInfo
One of these records is kept for each identifier that is lexed.
Definition: IdentifierTable.h:58
clang::ConditionalOperator::getFalseExpr
Expr * getFalseExpr() const
Definition: Expr.h:3625
clang::OffsetOfNode::getField
FieldDecl * getField() const
For a field offsetof node, returns the field.
Definition: Expr.h:2077
clang::AtomicExpr::getRParenLoc
SourceLocation getRParenLoc() const
Definition: Expr.h:5524
clang::AtomicScopeModelKind::None
clang::PseudoObjectExpr::children
child_range children()
Definition: Expr.h:5406
clang::AddrLabelExpr::AddrLabelExpr
AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelDecl *L, QualType t)
Definition: Expr.h:3761
clang::InitListExpr::rend
const_reverse_iterator rend() const
Definition: Expr.h:4393
clang::ShuffleVectorExpr
ShuffleVectorExpr - clang-specific builtin-in function __builtin_shufflevector.
Definition: Expr.h:3846
clang::BinaryOperator::reverseComparisonOp
static Opcode reverseComparisonOp(Opcode Opc)
Definition: Expr.h:3393
clang::CompoundAssignOperator::getComputationResultType
QualType getComputationResultType() const
Definition: Expr.h:3530
clang::DesignatedInitExpr::Designator::isArrayRangeDesignator
bool isArrayRangeDesignator() const
Definition: Expr.h:4544
clang::Expr::Classification::CL_SubObjCPropertySetting
Definition: Expr.h:313
clang::IdentifierInfo::isStr
bool isStr(const char(&Str)[StrLen]) const
Return true if this is the identifier for the specified string.
Definition: IdentifierTable.h:137
clang::ParenExpr::getRParen
SourceLocation getRParen() const
Get the location of the right parentheses &#39;)&#39;.
Definition: Expr.h:1872
clang::OK_VectorComponent
A vector component is an element or range of elements on a vector.
Definition: Specifiers.h:132
clang::cast_away_const
StmtIterator cast_away_const(const ConstStmtIterator &RHS)
Definition: StmtIterator.h:152
clang::OffsetOfExpr::children
const_child_range children() const
Definition: Expr.h:2211
clang::Expr::Classification::CM_ConstAddrSpace
Definition: Expr.h:329
clang::InitListExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:4363
clang::ASTContext
Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
Definition: ASTContext.h:155
clang::NestedNameSpecifierLoc
A C++ nested-name-specifier augmented with source location information.
Definition: NestedNameSpecifier.h:237
clang::DesignatedInitExpr::getInit
Expr * getInit() const
Retrieve the initializer value.
Definition: Expr.h:4653
clang::ArraySubscriptExpr::setLHS
void setLHS(Expr *E)
Definition: Expr.h:2349
clang::ArraySubscriptExpr::getExprLoc
SourceLocation getExprLoc() const LLVM_READONLY
Definition: Expr.h:2373
clang::CompoundLiteralExpr::isFileScope
bool isFileScope() const
Definition: Expr.h:2955
clang::ImplicitCastExpr::TrailingObjects
friend TrailingObjects
Definition: Expr.h:3158
clang::ConditionalOperator::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:3630
clang::StringLiteral::isUTF8
bool isUTF8() const
Definition: Expr.h:1687
clang::FullExpr
FullExpr - Represents a "full-expression" node.
Definition: Expr.h:877
clang::CompoundLiteralExpr::children
child_range children()
Definition: Expr.h:2988
clang::Expr::LV_DuplicateVectorComponents
Definition: Expr.h:258
clang::AddrLabelExpr::getAmpAmpLoc
SourceLocation getAmpAmpLoc() const
Definition: Expr.h:3771
clang::SourceLocation::getFromRawEncoding
static SourceLocation getFromRawEncoding(unsigned Encoding)
Turn a raw encoding of a SourceLocation object into a real SourceLocation.
Definition: SourceLocation.h:152
clang::Stmt::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Stmt.cpp:288
clang::ImplicitCastExpr::OnStack_t
OnStack_t
Definition: Expr.h:3128
clang::FieldDecl
Represents a member of a struct/union/class.
Definition: Decl.h:2579
clang::AsTypeExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:5257
clang::VAArgExpr::setIsMicrosoftABI
void setIsMicrosoftABI(bool IsMS)
Definition: Expr.h:4115
clang::NoInitExpr
Represents a place-holder for an object not to be initialized by anything.
Definition: Expr.h:4713
clang::ASTVector::empty
bool empty() const
Definition: ASTVector.h:109
clang::GNUNullExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:4074
clang::UnaryOperator::UnaryOperator
UnaryOperator(Expr *input, Opcode opc, QualType type, ExprValueKind VK, ExprObjectKind OK, SourceLocation l, bool CanOverflow)
Definition: Expr.h:1902
clang::BinaryOperator::isPtrMemOp
static bool isPtrMemOp(Opcode Opc)
predicates to categorize the respective opcodes.
Definition: Expr.h:3354
clang::DesignatedInitExpr::Designator::isArrayDesignator
bool isArrayDesignator() const
Definition: Expr.h:4543
clang::UnaryExprOrTypeTrait
UnaryExprOrTypeTrait
Names for the "expression or type" traits.
Definition: TypeTraits.h:97
clang::UnaryOperator::isIncrementDecrementOp
static bool isIncrementDecrementOp(Opcode Op)
Definition: Expr.h:1969
clang::OffsetOfNode::getArrayExprIndex
unsigned getArrayExprIndex() const
For an array element node, returns the index into the array of expressions.
Definition: Expr.h:2071
clang::AddrLabelExpr::getLabelLoc
SourceLocation getLabelLoc() const
Definition: Expr.h:3773
clang::ExtVectorElementExpr::ExtVectorElementExpr
ExtVectorElementExpr(EmptyShell Empty)
Build an empty vector element expression.
Definition: Expr.h:5131
clang::MemberExpr::hasExplicitTemplateArgs
bool hasExplicitTemplateArgs() const
Determines whether the member name was followed by an explicit template argument list.
Definition: Expr.h:2834
clang::UnaryOperator::UnaryOperator
UnaryOperator(EmptyShell Empty)
Build an empty unary operator.
Definition: Expr.h:1917
clang::PseudoObjectExpr::getResultExpr
const Expr * getResultExpr() const
Definition: Expr.h:5359
clang::InitListExpr::getRBraceLoc
SourceLocation getRBraceLoc() const
Definition: Expr.h:4332
clang::UnaryExprOrTypeTraitExpr::getOperatorLoc
SourceLocation getOperatorLoc() const
Definition: Expr.h:2289
clang::MemberExpr::getExprLoc
SourceLocation getExprLoc() const LLVM_READONLY
Definition: Expr.h:2885
clang::CallExpr::getNumCommas
unsigned getNumCommas() const
getNumCommas - Return the number of commas that must have been present in this function call...
Definition: Expr.h:2611
clang::CStyleCastExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:3261
clang::GNUNullExpr
GNUNullExpr - Implements the GNU __null extension, which is a name for a null pointer constant that h...
Definition: Expr.h:4057
clang::Type::isReferenceType
bool isReferenceType() const
Definition: Type.h:6308
clang::CStyleCastExpr::getRParenLoc
SourceLocation getRParenLoc() const
Definition: Expr.h:3253
clang::CallExpr::setArg
void setArg(unsigned Arg, Expr *ArgExpr)
setArg - Set the specified argument.
Definition: Expr.h:2563
clang::BinaryOperator::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:3335
clang::FloatingLiteral::children
child_range children()
Definition: Expr.h:1504
clang::GNUNullExpr::children
child_range children()
Definition: Expr.h:4082
clang::CharacterLiteral::children
child_range children()
Definition: Expr.h:1437
clang::CallExpr::shrinkNumArgs
void shrinkNumArgs(unsigned NewNumArgs)
Reduce the number of arguments in this call expression.
Definition: Expr.h:2574
clang::ParenExpr::setRParen
void setRParen(SourceLocation Loc)
Definition: Expr.h:1873
clang::GNUNullExpr::GNUNullExpr
GNUNullExpr(EmptyShell Empty)
Build an empty GNU __null expression.
Definition: Expr.h:4068
clang::FixedPointLiteral
Definition: Expr.h:1351
clang::ArrayInitLoopExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:4836
clang::OpaqueValueExpr::getSourceExpr
Expr * getSourceExpr() const
The source expression of an opaque value expression is the expression which originally generated the ...
Definition: Expr.h:1003
clang::SubobjectAdjustment::P::RHS
Expr * RHS
Definition: Expr.h:75
clang::ParenExpr::children
const_child_range children() const
Definition: Expr.h:1881
clang::CharacterLiteral::children
const_child_range children() const
Definition: Expr.h:1440
clang::ExtVectorElementExpr
ExtVectorElementExpr - This represents access to specific elements of a vector, and may occur on the ...
Definition: Expr.h:5116
clang::NoInitExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:4726
clang::Expr::ClassifyModifiable
Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const
ClassifyModifiable - Classify this expression according to the C++11 expression taxonomy, and see if it is valid on the left side of an assignment.
Definition: Expr.h:389
clang::CastExpr::getSubExpr
Expr * getSubExpr()
Definition: Expr.h:3050
clang::AtomicExpr::getScopeModel
std::unique_ptr< AtomicScopeModel > getScopeModel() const
Get atomic scope model.
Definition: Expr.h:5555
clang::VAArgExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:4126
clang::AbstractConditionalOperator::getQuestionLoc
SourceLocation getQuestionLoc() const
Definition: Expr.h:3571
clang::LangOptions
Keeps track of the various options that can be enabled, which controls the dialect of C or C++ that i...
Definition: LangOptions.h:50
clang::OffsetOfExpr::setComponent
void setComponent(unsigned Idx, OffsetOfNode ON)
Definition: Expr.h:2171
clang::UnaryExprOrTypeTraitExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:2296
clang::GNUNullExpr::children
const_child_range children() const
Definition: Expr.h:4085
clang::StringLiteral::getCharByteWidth
unsigned getCharByteWidth() const
Definition: Expr.h:1679
clang::ArrayInitIndexExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:4871
clang::ArraySubscriptExpr::getRHS
Expr * getRHS()
Definition: Expr.h:2351
clang::BinaryOperator::isAssignmentOp
bool isAssignmentOp() const
Definition: Expr.h:3413
clang::GNUNullExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:4075
clang::MemberExprNameQualifier::QualifierLoc
NestedNameSpecifierLoc QualifierLoc
The nested-name-specifier that qualifies the name, including source-location information.
Definition: Expr.h:2673
clang::StmtExpr::setRParenLoc
void setRParenLoc(SourceLocation L)
Definition: Expr.h:3827
llvm::SmallVectorImpl
Definition: LLVM.h:37
clang::DesignatedInitUpdateExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:4764
clang::InitListExpr::hadArrayRangeDesignator
bool hadArrayRangeDesignator() const
Definition: Expr.h:4353
clang::VK_RValue
An r-value expression (a pr-value in the C++11 taxonomy) produces a temporary value.
Definition: Specifiers.h:110
clang::IntegerLiteral::children
child_range children()
Definition: Expr.h:1343
clang::PseudoObjectExpr::const_semantics_iterator
const Expr *const * const_semantics_iterator
Definition: Expr.h:5366
clang::PseudoObjectExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:5418
clang::NoInitExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:4727
clang::FullExpr::setSubExpr
void setSubExpr(Expr *E)
As with any mutator of the AST, be very careful when modifying an existing AST to preserve its invari...
Definition: Expr.h:895
clang::BinaryOperator::isRelationalOp
static bool isRelationalOp(Opcode Opc)
Definition: Expr.h:3371
clang::InitListExpr::getInits
Expr *const * getInits() const
Retrieve the set of initializers.
Definition: Expr.h:4221
clang::InitListExpr::setLBraceLoc
void setLBraceLoc(SourceLocation Loc)
Definition: Expr.h:4331
clang::BinaryOperator::getOpcodeStr
StringRef getOpcodeStr() const
Definition: Expr.h:3343
clang::Expr::isGLValue
bool isGLValue() const
Definition: Expr.h:252
clang::AsTypeExpr::children
const_child_range children() const
Definition: Expr.h:5266
clang::Expr::MLV_MemberFunction
Definition: Expr.h:282
clang::DeclRefExpr::copyTemplateArgumentsInto
void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const
Copies the template arguments (if present) into the given structure.
Definition: Expr.h:1199
clang::InitListExpr
Describes an C or C++ initializer list.
Definition: Expr.h:4185
clang::ConvertVectorExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:3955
clang::AsTypeExpr::AsTypeExpr
AsTypeExpr(Expr *SrcExpr, QualType DstType, ExprValueKind VK, ExprObjectKind OK, SourceLocation BuiltinLoc, SourceLocation RParenLoc)
Definition: Expr.h:5236
clang::APIntStorage::setValue
void setValue(const ASTContext &C, const llvm::APInt &Val)
Definition: Expr.h:1293
clang::ShuffleVectorExpr::setBuiltinLoc
void setBuiltinLoc(SourceLocation L)
Definition: Expr.h:3865
clang::BinaryOperatorKind
BinaryOperatorKind
Definition: OperationKinds.h:26
clang::UnaryOperator::isPostfix
bool isPostfix() const
Definition: Expr.h:1953
clang::ParenExpr::setSubExpr
void setSubExpr(Expr *E)
Definition: Expr.h:1862
clang::IntegerLiteral::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:1330
clang::Expr::EvalStatus::Diag
SmallVectorImpl< PartialDiagnosticAt > * Diag
Diag - If this is non-null, it will be filled in with a stack of notes indicating why evaluation fail...
Definition: Expr.h:558
clang::ChooseExpr::setLHS
void setLHS(Expr *E)
Definition: Expr.h:4025
clang::ConvertVectorExpr::children
child_range children()
Definition: Expr.h:3962
clang::StringLiteral::getLength
unsigned getLength() const
Definition: Expr.h:1678
clang::BinaryOperator::isEqualityOp
static bool isEqualityOp(Opcode Opc)
Definition: Expr.h:3374
clang::DesignatedInitExpr::Designator::getFirstExprIndex
unsigned getFirstExprIndex() const
Definition: Expr.h:4589
clang::Expr::refersToBitField
bool refersToBitField() const
Returns true if this expression is a gl-value that potentially refers to a bit-field.
Definition: Expr.h:437
clang::DeclAccessPair::make
static DeclAccessPair make(NamedDecl *D, AccessSpecifier AS)
Definition: DeclAccessPair.h:36
clang::Expr::Classification::CL_ClassTemporary
Definition: Expr.h:314
clang::PredefinedExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:1831
APValue.h
clang::Expr::EvalResult::Val
APValue Val
Val - This is the value the expression can be folded to.
Definition: Expr.h:573
clang::TemplateArgumentListInfo
A convenient class for passing around template argument information.
Definition: TemplateBase.h:555
clang::Expr::MLV_InvalidExpression
Definition: Expr.h:274
clang::Expr::LV_Valid
Definition: Expr.h:255
clang::AtomicExpr::getPtr
Expr * getPtr() const
Definition: Expr.h:5465
clang::FixedPointLiteral::children
child_range children()
Definition: Expr.h:1384
clang::FloatingLiteral::getRawSemantics
APFloatSemantics getRawSemantics() const
Get a raw enumeration value representing the floating-point semantics of this literal (32-bit IEEE...
Definition: Expr.h:1469
clang::PredefinedExpr::PrettyFunction
Definition: Expr.h:1776
clang::SubobjectAdjustment::FieldAdjustment
Definition: Expr.h:64
clang::CharacterLiteral::classof
static bool classof(const Stmt *T)
Definition: Expr.h:1432
clang::DeclRefExpr::children
child_range children()
Definition: Expr.h:1248
clang::Expr::Classification::CL_DuplicateVectorComponents
Definition: Expr.h:311
clang::OffsetOfNode::OffsetOfNode
OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, SourceLocation RBracketLoc)
Create an offsetof node that refers to an array element.
Definition: Expr.h:2047
clang::Expr::getValueKind
ExprValueKind getValueKind() const
getValueKind - The value kind that this expression produces.
Definition: Expr.h:405
clang::VK_XValue
An x-value expression is a reference to an object with independent storage but which can be "moved"...
Definition: Specifiers.h:119
clang::ComparisonCategoryType::First
clang::CastExpr::path_begin
path_iterator path_begin()
Definition: Expr.h:3070
clang::CallExpr::getArg
const Expr * getArg(unsigned Arg) const
Definition: Expr.h:2557
clang::CallExpr::children
child_range children()
Definition: Expr.h:2657
clang::OffsetOfNode::OffsetOfNode
OffsetOfNode(const CXXBaseSpecifier *Base)
Create an offsetof node that refers into a C++ base class.
Definition: Expr.h:2063
clang::Expr::NullPointerConstantValueDependence
NullPointerConstantValueDependence
Enumeration used to describe how isNullPointerConstant() should cope with value-dependent expressions...
Definition: Expr.h:709
clang::ImaginaryLiteral::classof
static bool classof(const Stmt *T)
Definition: Expr.h:1538
clang::CallExpr::getNumPreArgs
unsigned getNumPreArgs() const
Definition: Expr.h:2477
clang::ArrayInitLoopExpr::classof
static bool classof(const Stmt *S)
Definition: Expr.h:4832
clang::PseudoObjectExpr::semantics_end
semantics_iterator semantics_end()
Definition: Expr.h:5373
clang::BinaryOperator
A builtin binary operation expression such as "x + y" or "x <= y".
Definition: Expr.h:3287
clang::VAArgExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:4129
clang::TypoExpr::TypoExpr
TypoExpr(QualType T)
Definition: Expr.h:5564
clang::GenericSelectionExpr::getAssocExpr
const Expr * getAssocExpr(unsigned i) const
Definition: Expr.h:5043
clang::StringLiteral::tokloc_end
tokloc_iterator tokloc_end() const
Definition: Expr.h:1737
clang::DesignatedInitExpr::ArrayOrRangeDesignator::RBracketLoc
unsigned RBracketLoc
The location of the &#39;]&#39; terminating the array range designator.
Definition: Expr.h:4485
clang::MemberExpr::template_arguments
ArrayRef< TemplateArgumentLoc > template_arguments() const
Definition: Expr.h:2862
clang::ExtVectorElementExpr::setAccessor
void setAccessor(IdentifierInfo *II)
Definition: Expr.h:5139
clang::MemberExpr::hadMultipleCandidates
bool hadMultipleCandidates() const
Returns true if this member expression refers to a method that was resolved from an overloaded set ha...
Definition: Expr.h:2894
clang::PseudoObjectExpr::getResultExprIndex
unsigned getResultExprIndex() const
Return the index of the result-bearing expression into the semantics expressions, or PseudoObjectExpr...
Definition: Expr.h:5348
clang::UnaryOperator::isPostfix
static bool isPostfix(Opcode Op)
isPostfix - Return true if this is a postfix operation, like x++.
Definition: Expr.h:1943
clang::ArraySubscriptExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:2377
clang::Expr::Classification::CM_Modifiable
Definition: Expr.h:322
clang::InitListExpr::children
child_range children()
Definition: Expr.h:4368
clang::MemberExpr::isArrow
bool isArrow() const
Definition: Expr.h:2874
clang::ChooseExpr::ChooseExpr
ChooseExpr(EmptyShell Empty)
Build an empty __builtin_choose_expr.
Definition: Expr.h:4001
clang::AddrLabelExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:3782
clang::BinaryOperator::isFPContractableWithinStatement
bool isFPContractableWithinStatement() const
Definition: Expr.h:3467
clang::DesignatedInitExpr::getEqualOrColonLoc
SourceLocation getEqualOrColonLoc() const
Retrieve the location of the &#39;=&#39; that precedes the initializer value itself, if present.
Definition: Expr.h:4644
clang::Expr::MLV_IncompleteVoidType
Definition: Expr.h:272
clang::BinaryOperator::BinaryOperator
BinaryOperator(EmptyShell Empty)
Construct an empty binary operator.
Definition: Expr.h:3314
clang::StringLiteral::StringKind
StringKind
StringLiteral is followed by several trailing objects.
Definition: Expr.h:1588
clang::ArrayInitIndexExpr::children
child_range children()
Definition: Expr.h:4874
clang::TypoExpr
TypoExpr - Internal placeholder for expressions where typo correction still needs to be performed and...
Definition: Expr.h:5562
clang::Expr::MLV_ArrayType
Definition: Expr.h:280
clang::ImplicitValueInitExpr::children
const_child_range children() const
Definition: Expr.h:4914
clang::OffsetOfExpr::setOperatorLoc
void setOperatorLoc(SourceLocation L)
Definition: Expr.h:2153
clang::ParenListExpr
Definition: Expr.h:4919
clang::FPOptions::getInt
unsigned getInt() const
Used to serialize this.
Definition: LangOptions.h:352
clang::BinaryOperator::isRelationalOp
bool isRelationalOp() const
Definition: Expr.h:3372
clang::SubobjectAdjustment
An adjustment to be made to the temporary created when emitting a reference binding, which accesses a particular subobject of that temporary.
Definition: Expr.h:61
clang::GenericSelectionExpr::getControllingExpr
const Expr * getControllingExpr() const
Definition: Expr.h:5068
clang::CastExpr
CastExpr - Base class for type casts, including both implicit casts (ImplicitCastExpr) and explicit c...
Definition: Expr.h:2998
clang::OffsetOfNode
Helper class for OffsetOfExpr.
Definition: Expr.h:2013
clang::VAArgExpr::getBuiltinLoc
SourceLocation getBuiltinLoc() const
Definition: Expr.h:4120
clang::Expr::Classification::CL_XValue
Definition: Expr.h:307
clang::UnaryOperator::setOpcode
void setOpcode(Opcode Opc)
Definition: Expr.h:1924
clang::CompoundLiteralExpr::getInitializer
Expr * getInitializer()
Definition: Expr.h:2952
clang::DeclRefExpr::getQualifierLoc
NestedNameSpecifierLoc getQualifierLoc() const
If the name was qualified, retrieves the nested-name-specifier that precedes the name, with source-location information.
Definition: Expr.h:1133
clang::Expr::isTypeDependent
bool isTypeDependent() const
isTypeDependent - Determines whether this expression is type-dependent (C++ [temp.dep.expr]), which means that its type could change from one template instantiation to the next.
Definition: Expr.h:167
clang::OK_Ordinary
An ordinary object is located at an address in memory.
Definition: Specifiers.h:126
clang::FloatingLiteral
Definition: Expr.h:1445
clang::UnaryOperator::getOperatorLoc
SourceLocation getOperatorLoc() const
getOperatorLoc - Return the location of the operator.
Definition: Expr.h:1930
llvm::ArrayRef
Definition: LLVM.h:32
clang::AtomicExpr::isCmpXChg
bool isCmpXChg() const
Definition: Expr.h:5509
clang::Stmt::StmtClass
StmtClass
Definition: Stmt.h:68
clang::OffsetOfExpr::setRParenLoc
void setRParenLoc(SourceLocation R)
Definition: Expr.h:2157
clang::PredefinedExpr::getEndLoc
SourceLocation getEndLoc() const
Definition: Expr.h:1829
clang::Expr::Classification::makeSimpleLValue
static Classification makeSimpleLValue()
Create a simple, modifiably lvalue.
Definition: Expr.h:360
clang::ArraySubscriptExpr::getIdx
Expr * getIdx()
Definition: Expr.h:2358
clang::FloatingLiteral::isExact
bool isExact() const
Definition: Expr.h:1485
clang::Expr::Classification::CM_RValue
Definition: Expr.h:323
clang::GNUNullExpr::GNUNullExpr
GNUNullExpr(QualType Ty, SourceLocation Loc)
Definition: Expr.h:4062
clang::ConditionalOperator::children
child_range children()
Definition: Expr.h:3642
clang::ConvertVectorExpr::ConvertVectorExpr
ConvertVectorExpr(Expr *SrcExpr, TypeSourceInfo *TI, QualType DstType, ExprValueKind VK, ExprObjectKind OK, SourceLocation BuiltinLoc, SourceLocation RParenLoc)
Definition: Expr.h:3925
clang::Expr::MLV_ClassTemporary
Definition: Expr.h:285
clang::GNUNullExpr::getTokenLocation
SourceLocation getTokenLocation() const
getTokenLocation - The location of the __null token.
Definition: Expr.h:4071
clang::Stmt::ExprIterator
Iterator for iterating over Stmt * arrays that contain only Expr *.
Definition: Stmt.h:983
clang::CStyleCastExpr::setRParenLoc
void setRParenLoc(SourceLocation L)
Definition: Expr.h:3254
clang::APNumericStorage::pVal
uint64_t * pVal
Used to store the >64 bits integer value.
Definition: Expr.h:1268
clang::BinaryConditionalOperator::children
const_child_range children() const
Definition: Expr.h:3733
clang::CallExpr::arg_end
arg_iterator arg_end()
Definition: Expr.h:2593
clang::CastExpr::setCastKind
void setCastKind(CastKind K)
Definition: Expr.h:3045
clang::Expr::Classification::CL_Void
Definition: Expr.h:309
clang::APIntStorage
Definition: Expr.h:1290
clang::MemberExpr::getQualifierLoc
NestedNameSpecifierLoc getQualifierLoc() const
If the member name was qualified, retrieves the nested-name-specifier that precedes the member name...
Definition: Expr.h:2792
DeclAccessPair.h
clang::ASTVector::iterator
T * iterator
Definition: ASTVector.h:86
clang::OffsetOfExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:2199
clang::FloatingLiteral::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:1497
clang::ShuffleVectorExpr::getSubExprs
Expr ** getSubExprs()
Retrieve the array of expressions.
Definition: Expr.h:3883
clang::FullExpr::FullExpr
FullExpr(StmtClass SC, EmptyShell Empty)
Definition: Expr.h:887
clang::ChooseExpr::ChooseExpr
ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, ExprValueKind VK, ExprObjectKind OK, SourceLocation RP, bool condIsTrue, bool TypeDependent, bool ValueDependent)
Definition: Expr.h:3983
clang::ParenExpr::getSubExpr
Expr * getSubExpr()
Definition: Expr.h:1861
clang::GenericSelectionExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:5092
clang::DesignatedInitExpr::setEqualOrColonLoc
void setEqualOrColonLoc(SourceLocation L)
Definition: Expr.h:4645
clang::DesignatedInitExpr::Designator::getEllipsisLoc
SourceLocation getEllipsisLoc() const
Definition: Expr.h:4583
clang::ArraySubscriptExpr::getLHS
const Expr * getLHS() const
Definition: Expr.h:2348
clang::UnaryExprOrTypeTraitExpr::setArgument
void setArgument(Expr *E)
Definition: Expr.h:2274
clang::ExplicitCastExpr::getTypeAsWritten
QualType getTypeAsWritten() const
getTypeAsWritten - Returns the type that this expression is casting to, as written in the source code...
Definition: Expr.h:3213
clang::OffsetOfExpr::setTypeSourceInfo
void setTypeSourceInfo(TypeSourceInfo *tsi)
Definition: Expr.h:2162
clang::BinaryOperator::negateComparisonOp
static Opcode negateComparisonOp(Opcode Opc)
Definition: Expr.h:3380
clang::ArraySubscriptExpr::getEndLoc
SourceLocation getEndLoc() const
Definition: Expr.h:2364
clang::CallExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:2651
clang::ShuffleVectorExpr::getExpr
const Expr * getExpr(unsigned Index) const
Definition: Expr.h:3890
clang::ConditionalOperator
ConditionalOperator - The ?: ternary operator.
Definition: Expr.h:3582
clang::Stmt::ConstExprIterator
Const iterator for iterating over Stmt * arrays that contain only Expr *.
Definition: Stmt.h:997
clang::AtomicExpr::getScope
Expr * getScope() const
Definition: Expr.h:5471
clang::DesignatedInitExpr::Designator::setField
void setField(FieldDecl *FD)
Definition: Expr.h:4556
clang::StringLiteral::getString
StringRef getString() const
Definition: Expr.h:1649
clang::ParenExpr::ParenExpr
ParenExpr(SourceLocation l, SourceLocation r, Expr *val)
Definition: Expr.h:1848
clang::AddrLabelExpr::setAmpAmpLoc
void setAmpAmpLoc(SourceLocation L)
Definition: Expr.h:3772
clang::Stmt::const_child_range
llvm::iterator_range< const_child_iterator > const_child_range
Definition: Stmt.h:1099
CharInfo.h
clang::CompoundStmt
CompoundStmt - This represents a group of statements like { stmt stmt }.
Definition: Stmt.h:1241
clang::FunctionProtoType
Represents a prototype with parameter type info, e.g.
Definition: Type.h:3687
clang::BlockExpr::setBlockDecl
void setBlockDecl(BlockDecl *BD)
Definition: Expr.h:5193
clang::ASTStmtWriter
Definition: ASTWriterStmt.cpp:31
clang::VAArgExpr::isMicrosoftABI
bool isMicrosoftABI() const
Returns whether this is really a Win64 ABI va_arg expression.
Definition: Expr.h:4114
clang::ArrayInitIndexExpr::ArrayInitIndexExpr
ArrayInitIndexExpr(QualType T)
Definition: Expr.h:4863
clang::AtomicExpr::getSubExprs
Expr ** getSubExprs()
Definition: Expr.h:5500
clang::SubobjectAdjustment::SubobjectAdjustment
SubobjectAdjustment(FieldDecl *Field)
Definition: Expr.h:91
clang::MemberExpr::copyTemplateArgumentsInto
void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const
Copies the template arguments (if present) into the given structure.
Definition: Expr.h:2838
clang::CompoundAssignOperator::getComputationLHSType
QualType getComputationLHSType() const
Definition: Expr.h:3527
clang::CastKind
CastKind
CastKind - The kind of operation required for a conversion.
Definition: OperationKinds.h:21
clang::MemberExpr::getQualifier
NestedNameSpecifier * getQualifier() const
If the member name was qualified, retrieves the nested-name-specifier that precedes the member name...
Definition: Expr.h:2801
clang::Expr::Classification
The return type of classify().
Definition: Expr.h:302
clang::Expr::IgnoreParenCasts
const Expr * IgnoreParenCasts() const LLVM_READONLY
Definition: Expr.h:826
clang::PseudoObjectExpr::semantics_begin
const_semantics_iterator semantics_begin() const
Definition: Expr.h:5370
clang::APNumericStorage
Used by IntegerLiteral/FloatingLiteral to store the numeric without leaking memory.
Definition: Expr.h:1265
clang::AtomicExpr::getScopeModel
static std::unique_ptr< AtomicScopeModel > getScopeModel(AtomicOp Op)
Get atomic scope model for the atomic op code.
Definition: Expr.h:5544
clang::OffsetOfNode::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:2099
clang::UnaryOperator::setSubExpr
void setSubExpr(Expr *E)
Definition: Expr.h:1927
clang::UnaryExprOrTypeTraitExpr
UnaryExprOrTypeTraitExpr - expression with either a type or (unevaluated) expression operand...
Definition: Expr.h:2222
clang::Expr::MLV_InvalidMessageExpression
Definition: Expr.h:284
clang::ASTVector::end
iterator end()
Definition: ASTVector.h:100
clang::ParenExpr::setLParen
void setLParen(SourceLocation Loc)
Definition: Expr.h:1869
clang::Expr::IgnoreImplicit
const Expr * IgnoreImplicit() const LLVM_READONLY
Definition: Expr.h:751
clang::APNumericStorage::getIntValue
llvm::APInt getIntValue() const
Definition: Expr.h:1280
clang::DeclRefExpr::getLocation
SourceLocation getLocation() const
Definition: Expr.h:1122
clang::DesignatedInitUpdateExpr::getUpdater
InitListExpr * getUpdater() const
Definition: Expr.h:4771
clang::ConditionalOperator::ConditionalOperator
ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, SourceLocation CLoc, Expr *rhs, QualType t, ExprValueKind VK, ExprObjectKind OK)
Definition: Expr.h:3588
clang::ConstantExpr
ConstantExpr - An expression that occurs in a constant context.
Definition: Expr.h:904
clang::Expr::EvalStatus::HasUndefinedBehavior
bool HasUndefinedBehavior
Whether the evaluation hit undefined behavior.
Definition: Expr.h:549
clang::VAArgExpr
Represents a call to the builtin function __builtin_va_arg.
Definition: Expr.h:4091
clang::AbstractConditionalOperator::getCond
Expr * getCond() const
Definition: Expr.h:3738
clang::Expr::Classification::Kinds
Kinds
The various classification results. Most of these mean prvalue.
Definition: Expr.h:305
clang::UnaryOperator::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:1994
clang::CharacterLiteral::getValue
unsigned getValue() const
Definition: Expr.h:1426
clang::TargetInfo
Exposes information about the current target.
Definition: TargetInfo.h:54
clang::AsTypeExpr::getSrcExpr
Expr * getSrcExpr() const
getSrcExpr - Return the Expr to be converted.
Definition: Expr.h:5249
clang::CompoundAssignOperator::CompoundAssignOperator
CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType, ExprValueKind VK, ExprObjectKind OK, QualType CompLHSType, QualType CompResultType, SourceLocation OpLoc, FPOptions FPFeatures)
Definition: Expr.h:3508
clang::ShuffleVectorExpr::getShuffleMaskIdx
llvm::APSInt getShuffleMaskIdx(const ASTContext &Ctx, unsigned N) const
Definition: Expr.h:3897
clang::CallExpr::getADLCallKind
ADLCallKind getADLCallKind() const
Definition: Expr.h:2518
clang::ShuffleVectorExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:3870
clang::UnaryOperator::children
const_child_range children() const
Definition: Expr.h:2005
clang::StmtExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:3822
clang::CharacterLiteral::setLocation
void setLocation(SourceLocation Location)
Definition: Expr.h:1428
clang::ConditionalOperator::getCond
Expr * getCond() const
Definition: Expr.h:3616
clang::CallExpr::arguments
const_arg_range arguments() const
Definition: Expr.h:2586
clang::BlockDecl
Pepresents a block literal declaration, which is like an unnamed FunctionDecl.
Definition: Decl.h:3858
clang::DesignatedInitExpr::designators
llvm::MutableArrayRef< Designator > designators()
Definition: Expr.h:4622
clang::StringLiteral::classof
static bool classof(const Stmt *T)
Definition: Expr.h:1744
clang::MemberExpr::getFoundDecl
DeclAccessPair getFoundDecl() const
Retrieves the declaration found by lookup.
Definition: Expr.h:2777
clang::PredefinedExpr::LFunction
Definition: Expr.h:1772
clang::ValueDecl
Represent the declaration of a variable (in which case it is an lvalue) a function (in which case it ...
Definition: Decl.h:637
clang::Expr
This represents one expression.
Definition: Expr.h:106
LangOptions.h
Defines the clang::LangOptions interface.
clang::InitListExpr::setRBraceLoc
void setRBraceLoc(SourceLocation Loc)
Definition: Expr.h:4333
clang::ShuffleVectorExpr::children
const_child_range children() const
Definition: Expr.h:3906
clang::ExprValueKind
ExprValueKind
The categorization of expression values, currently following the C++11 scheme.
Definition: Specifiers.h:107
clang::ShuffleVectorExpr::children
child_range children()
Definition: Expr.h:3903
clang::CallExpr::setCallee
void setCallee(Expr *F)
Definition: Expr.h:2516
llvm::MutableArrayRef
Definition: LLVM.h:33
Label
std::string Label
Definition: UsingDeclarationsSorter.cpp:70
clang::PseudoObjectExpr::getSyntacticForm
const Expr * getSyntacticForm() const
Definition: Expr.h:5344
clang::ArrayInitLoopExpr::children
const_child_range children() const
Definition: Expr.h:4846
clang::OffsetOfNode::getBase
CXXBaseSpecifier * getBase() const
For a base class node, returns the base specifier.
Definition: Expr.h:2087
clang::ShuffleVectorExpr::setRParenLoc
void setRParenLoc(SourceLocation L)
Definition: Expr.h:3868
clang::ArraySubscriptExpr::getRHS
const Expr * getRHS() const
Definition: Expr.h:2352
clang::DeclRefExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:1243
clang::DesignatedInitUpdateExpr::setBase
void setBase(Expr *Base)
Definition: Expr.h:4769
clang::InitListExpr::setSyntacticForm
void setSyntacticForm(InitListExpr *Init)
Definition: Expr.h:4346
clang::DesignatedInitUpdateExpr
Definition: Expr.h:4749
clang::Expr::Classification::CL_LValue
Definition: Expr.h:306
clang::CompoundLiteralExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:2976
clang::ImaginaryLiteral::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:1536
clang::MemberExpr::setMemberLoc
void setMemberLoc(SourceLocation L)
Definition: Expr.h:2880
clang::NoInitExpr::NoInitExpr
NoInitExpr(QualType ty)
Definition: Expr.h:4715
clang::Expr::setTypeDependent
void setTypeDependent(bool TD)
Set whether this expression is type-dependent or not.
Definition: Expr.h:170
clang::GenericSelectionExpr::getAssocTypeSourceInfo
const TypeSourceInfo * getAssocTypeSourceInfo(unsigned i) const
Definition: Expr.h:5053
clang::BlockExpr
BlockExpr - Adaptor class for mixing a BlockDecl with expressions.
Definition: Expr.h:5177
clang::CallExpr::getCallee
Expr * getCallee()
Definition: Expr.h:2514
clang::DesignatedInitExpr::Designator::isFieldDesignator
bool isFieldDesignator() const
Definition: Expr.h:4542
clang::InitListExpr::getNumInits
unsigned getNumInits() const
Definition: Expr.h:4215
clang::DesignatedInitExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:4687
clang::ArrayInitLoopExpr::getSubExpr
Expr * getSubExpr() const
Get the initializer to use for each array element.
Definition: Expr.h:4825
clang::PredefinedExpr::getBeginLoc
SourceLocation getBeginLoc() const
Definition: Expr.h:1828
clang::CallExpr::getCallee
const Expr * getCallee() const
Definition: Expr.h:2515
clang::Expr::MLV_SubObjCPropertySetting
Definition: Expr.h:283
clang::BinaryOperator::setRHS
void setRHS(Expr *E)
Definition: Expr.h:3330
clang::PseudoObjectExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:5402
clang::DesignatedInitExpr::ArrayOrRangeDesignator
An array or GNU array-range designator, e.g., "[9]" or "[10..15]".
Definition: Expr.h:4475
clang::CallExpr::getPreArg
Stmt * getPreArg(unsigned I)
Definition: Expr.h:2464
clang::Expr::skipRValueSubobjectAdjustments
const Expr * skipRValueSubobjectAdjustments() const
Definition: Expr.h:860
clang::ConvertVectorExpr::setTypeSourceInfo
void setTypeSourceInfo(TypeSourceInfo *ti)
Definition: Expr.h:3944
clang::InitListExpr::end
const_iterator end() const
Definition: Expr.h:4389
clang::StringLiteral::children
const_child_range children() const
Definition: Expr.h:1752
clang::UnaryExprOrTypeTraitExpr::getArgumentType
QualType getArgumentType() const
Definition: Expr.h:2259
bool
#define bool
Definition: stdbool.h:31
clang::SubobjectAdjustment::DerivedToBase
struct DTB DerivedToBase
Definition: Expr.h:79
clang::MemberExpr::performsVirtualDispatch
bool performsVirtualDispatch(const LangOptions &LO) const
Returns true if virtual dispatch is performed.
Definition: Expr.h:2908
clang::VAArgExpr::setWrittenTypeInfo
void setWrittenTypeInfo(TypeSourceInfo *TI)
Definition: Expr.h:4118
clang::AtomicExpr::getOrder
Expr * getOrder() const
Definition: Expr.h:5468
clang::ParenListExpr::children
child_range children()
Definition: Expr.h:4974
clang::ParenListExpr::getLParenLoc
SourceLocation getLParenLoc() const
Definition: Expr.h:4964
clang::ParenExpr::ParenExpr
ParenExpr(EmptyShell Empty)
Construct an empty parenthesized expression.
Definition: Expr.h:1857
clang::StringLiteral::getCodeUnit
uint32_t getCodeUnit(size_t i) const
Definition: Expr.h:1664
clang::Expr::setObjectKind
void setObjectKind(ExprObjectKind Cat)
setObjectKind - Set the object kind produced by this expression.
Definition: Expr.h:425
clang::DeclRefExpr::hasQualifier
bool hasQualifier() const
Determine whether this declaration reference was preceded by a C++ nested-name-specifier, e.g., N::foo.
Definition: Expr.h:1129
clang::VAArgExpr::getSubExpr
Expr * getSubExpr()
Definition: Expr.h:4110
clang::DesignatedInitUpdateExpr::children
child_range children()
Definition: Expr.h:4778
clang::OffsetOfExpr::getTypeSourceInfo
TypeSourceInfo * getTypeSourceInfo() const
Definition: Expr.h:2159
clang::DesignatedInitExpr::size
unsigned size() const
Returns the number of designators in this initializer.
Definition: Expr.h:4619
clang::AsTypeExpr
AsTypeExpr - Clang builtin function __builtin_astype [OpenCL 6.2.4.2] This AST node provides support ...
Definition: Expr.h:5226
clang::ConditionalOperator::children
const_child_range children() const
Definition: Expr.h:3645
clang::CallExpr::getDirectCallee
FunctionDecl * getDirectCallee()
If the callee is a FunctionDecl, return it. Otherwise return null.
Definition: Expr.h:2532
clang::DeclRefExpr::refersToEnclosingVariableOrCapture
bool refersToEnclosingVariableOrCapture() const
Does this DeclRefExpr refer to an enclosing local or a captured variable?
Definition: Expr.h:1239
clang::ExtVectorElementExpr::getAccessor
IdentifierInfo & getAccessor() const
Definition: Expr.h:5138
EvaluateAsBooleanCondition
static bool EvaluateAsBooleanCondition(const Expr *E, bool &Result, EvalInfo &Info)
Definition: ExprConstant.cpp:2057
clang::BinaryOperator::BinaryOperator
BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, ExprValueKind VK, ExprObjectKind OK, SourceLocation opLoc, FPOptions FPFeatures, bool dead2)
Definition: Expr.h:3476
clang::DeclRefExpr::getDecl
const ValueDecl * getDecl() const
Definition: Expr.h:1115
clang::InitListExpr::inits
ArrayRef< Expr * > inits()
Definition: Expr.h:4225
clang::ArraySubscriptExpr::ArraySubscriptExpr
ArraySubscriptExpr(EmptyShell Shell)
Create an empty array subscript expression.
Definition: Expr.h:2335
clang::SubobjectAdjustment::DTB
Definition: Expr.h:68
clang::StringLiteral::children
child_range children()
Definition: Expr.h:1749
clang::Expr::NPC_ValueDependentIsNull
Specifies that a value-dependent expression of integral or dependent type should be considered a null...
Definition: Expr.h:715
clang::MemberExprNameQualifier
Extra data stored in some MemberExpr objects.
Definition: Expr.h:2670
clang::GenericSelectionExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:5089
clang::OffsetOfNode::getKind
Kind getKind() const
Determine what kind of offsetof node this is.
Definition: Expr.h:2067
clang::MemberExpr::getLAngleLoc
SourceLocation getLAngleLoc() const
Retrieve the location of the left angle bracket starting the explicit template argument list followin...
Definition: Expr.h:2815
clang::Expr::getType
QualType getType() const
Definition: Expr.h:128
clang::GenericSelectionExpr::getAssocExprs
ArrayRef< Expr * > getAssocExprs() const
Definition: Expr.h:5047
clang::UnaryExprOrTypeTraitExpr::getTypeOfArgument
QualType getTypeOfArgument() const
Gets the argument type, or the type of the argument expression, whichever is appropriate.
Definition: Expr.h:2285
clang::AtomicExpr::isVolatile
bool isVolatile() const
Definition: Expr.h:5505
clang::StringLiteral::isWide
bool isWide() const
Definition: Expr.h:1686
clang::PseudoObjectExpr::semantics_end
const_semantics_iterator semantics_end() const
Definition: Expr.h:5376
Stmt.h
clang::Expr::setValueKind
void setValueKind(ExprValueKind Cat)
setValueKind - Set the value kind produced by this expression.
Definition: Expr.h:422
clang::AtomicExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:5527
clang::CreateEmpty
static OMPLinearClause * CreateEmpty(const ASTContext &C, unsigned NumVars)
Creates an empty clause with the place for NumVars variables.
clang::AsTypeExpr::getRParenLoc
SourceLocation getRParenLoc() const
getRParenLoc - Return the location of final right parenthesis.
Definition: Expr.h:5255
clang::MemberExpr::setMemberDecl
void setMemberDecl(ValueDecl *D)
Definition: Expr.h:2774
clang::ParenListExpr::children
const_child_range children() const
Definition: Expr.h:4978
clang::BlockExpr::children
const_child_range children() const
Definition: Expr.h:5218
clang::Expr::Classification::ModifiableType
ModifiableType
The results of modification testing.
Definition: Expr.h:320
clang::ChooseExpr::setRParenLoc
void setRParenLoc(SourceLocation L)
Definition: Expr.h:4033
clang::DesignatedInitExpr::Designator::getLBracketLoc
SourceLocation getLBracketLoc() const
Definition: Expr.h:4571
clang::ArraySubscriptExpr::getRBracketLoc
SourceLocation getRBracketLoc() const
Definition: Expr.h:2366
clang::SourceRange::getEnd
SourceLocation getEnd() const
Definition: SourceLocation.h:208
clang::AddrLabelExpr::children
const_child_range children() const
Definition: Expr.h:3790
clang::UnaryOperator
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:1896
clang::DesignatedInitExpr::ArrayOrRangeDesignator::Index
unsigned Index
Location of the first index expression within the designated initializer expression&#39;s list of subexpr...
Definition: Expr.h:4478
clang::MemberExpr::getMemberLoc
SourceLocation getMemberLoc() const
getMemberLoc - Return the location of the "member", in X->F, it is the location of &#39;F&#39;...
Definition: Expr.h:2879
clang::IntegerLiteral::children
const_child_range children() const
Definition: Expr.h:1346
clang::DesignatedInitExpr::usesGNUSyntax
bool usesGNUSyntax() const
Determines whether this designated initializer used the deprecated GNU syntax for designated initiali...
Definition: Expr.h:4649
clang::AtomicExpr::getOp
AtomicOp getOp() const
Definition: Expr.h:5497
clang::Expr::LV_MemberFunction
Definition: Expr.h:261
EvaluateAsInt
static bool EvaluateAsInt(const Expr *E, Expr::EvalResult &ExprResult, const ASTContext &Ctx, Expr::SideEffectsKind AllowSideEffects, EvalInfo &Info)
Definition: ExprConstant.cpp:10917
clang::InitListExpr::inits
ArrayRef< Expr * > inits() const
Definition: Expr.h:4229
clang::DesignatedInitExpr::Designator::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:4595
clang::BinaryConditionalOperator::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:3721
clang::CallExpr::arg_end
const_arg_iterator arg_end() const
Definition: Expr.h:2598
clang::CStyleCastExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:3257
clang::OffsetOfExpr::getComponent
const OffsetOfNode & getComponent(unsigned Idx) const
Definition: Expr.h:2166
clang::BinaryConditionalOperator::getTrueExpr
Expr * getTrueExpr() const
getTrueExpr - Return the subexpression which will be evaluated if the condition evaluates to true; th...
Definition: Expr.h:3707
clang::DeclRefExpr::getTemplateKeywordLoc
SourceLocation getTemplateKeywordLoc() const
Retrieve the location of the template keyword preceding this name, if any.
Definition: Expr.h:1167
clang::AbstractConditionalOperator::classof
static bool classof(const Stmt *T)
Definition: Expr.h:3574
clang::DeclRefExpr::getDecl
ValueDecl * getDecl()
Definition: Expr.h:1114
clang::AtomicExpr::children
child_range children()
Definition: Expr.h:5534
clang::PredefinedExpr::getLocation
SourceLocation getLocation() const
Definition: Expr.h:1810
clang::AbstractConditionalOperator::getTrueExpr
Expr * getTrueExpr() const
Definition: Expr.h:3744
clang::ConstantExpr::children
child_range children()
Definition: Expr.h:930
clang::VAArgExpr::getRParenLoc
SourceLocation getRParenLoc() const
Definition: Expr.h:4123
clang::ComparisonCategoryType::Last
clang::ObjCSubstitutionContext::Result
The result type of a method or function.
clang::DesignatedInitExpr::Designator::Designator
Designator(unsigned Index, SourceLocation LBracketLoc, SourceLocation EllipsisLoc, SourceLocation RBracketLoc)
Initializes a GNU array-range designator.
Definition: Expr.h:4533
clang::PredefinedExpr::IdentKind
IdentKind
Definition: Expr.h:1769
clang::ParenExpr::getSubExpr
const Expr * getSubExpr() const
Definition: Expr.h:1860
clang::CStyleCastExpr
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:3224
clang::PseudoObjectExpr::semantics
llvm::iterator_range< semantics_iterator > semantics()
Definition: Expr.h:5380
clang::QualType::isNull
bool isNull() const
Return true if this QualType doesn&#39;t point to a type yet.
Definition: Type.h:703
clang::APNumericStorage::APNumericStorage
APNumericStorage()
Definition: Expr.h:1278
clang::ArraySubscriptExpr::getLHS
Expr * getLHS()
An array access can be written A[4] or 4[A] (both are equivalent).
Definition: Expr.h:2347
clang::ASTVector::rend
reverse_iterator rend()
Definition: ASTVector.h:106
clang::OpaqueValueExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:1013
clang::DeclRefExpr::hadMultipleCandidates
bool hadMultipleCandidates() const
Returns true if this expression refers to a function that was resolved from an overloaded set having ...
Definition: Expr.h:1227
clang::FixedPointLiteral::children
const_child_range children() const
Definition: Expr.h:1387
SM
const SourceManager & SM
Definition: Format.cpp:1490
uintptr_t
__UINTPTR_TYPE__ uintptr_t
An unsigned integer type with the property that any valid pointer to void can be converted to this ty...
Definition: opencl-c.h:90
clang::ConvertVectorExpr::children
const_child_range children() const
Definition: Expr.h:3963
clang::PseudoObjectExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:5399
clang::ExplicitCastExpr::ExplicitCastExpr
ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK, CastKind kind, Expr *op, unsigned PathSize, TypeSourceInfo *writtenTy)
Definition: Expr.h:3196
clang::MemberExpr::children
child_range children()
Definition: Expr.h:2917
clang::ImaginaryLiteral
ImaginaryLiteral - We support imaginary integer and floating point literals, like "1...
Definition: Expr.h:1517
clang::VAArgExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:4127
clang::GenericSelectionExpr::getAssocTypeSourceInfos
ArrayRef< TypeSourceInfo * > getAssocTypeSourceInfos() const
Definition: Expr.h:5057
clang::Stmt::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Stmt.cpp:301
clang::VAArgExpr::setRParenLoc
void setRParenLoc(SourceLocation L)
Definition: Expr.h:4124
clang::UnaryOperator::isDecrementOp
bool isDecrementOp() const
Definition: Expr.h:1965
clang::Expr::getObjectKind
ExprObjectKind getObjectKind() const
getObjectKind - The object kind that this expression produces.
Definition: Expr.h:412
clang::TypoExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:5583
clang::Expr::SideEffectsKind
SideEffectsKind
Definition: Expr.h:595
clang::ConstantExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:918
clang::BinaryOperator::isComparisonOp
bool isComparisonOp() const
Definition: Expr.h:3378
clang::BinaryOperator::isBitwiseOp
static bool isBitwiseOp(Opcode Opc)
Definition: Expr.h:3368
clang::Expr::IgnoreConversionOperator
const Expr * IgnoreConversionOperator() const LLVM_READONLY
Definition: Expr.h:776
clang::AtomicExpr::children
const_child_range children() const
Definition: Expr.h:5537
clang::FixedPointLiteral::classof
static bool classof(const Stmt *T)
Definition: Expr.h:1377
clang::StmtIterator
Definition: StmtIterator.h:125
clang::CompoundLiteralExpr::setTypeSourceInfo
void setTypeSourceInfo(TypeSourceInfo *tinfo)
Definition: Expr.h:2964
clang::AsTypeExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:5260
clang::DesignatedInitExpr::FieldDesignator::DotLoc
unsigned DotLoc
The location of the &#39;.&#39; in the designated initializer.
Definition: Expr.h:4468
clang::UnaryExprOrTypeTraitExpr::UnaryExprOrTypeTraitExpr
UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, TypeSourceInfo *TInfo, QualType resultType, SourceLocation op, SourceLocation rp)
Definition: Expr.h:2230
clang::OpaqueValueExpr
OpaqueValueExpr - An expression referring to an opaque object of a fixed type and value class...
Definition: Expr.h:945
clang::CompoundAssignOperator::setComputationLHSType
void setComputationLHSType(QualType T)
Definition: Expr.h:3528
clang::DesignatedInitUpdateExpr::getBase
Expr * getBase() const
Definition: Expr.h:4768
clang::ConvertVectorExpr
ConvertVectorExpr - Clang builtin function __builtin_convertvector This AST node provides support for...
Definition: Expr.h:3914
clang::CallExpr::getPreArg
const Stmt * getPreArg(unsigned I) const
Definition: Expr.h:2468
false
#define false
Definition: stdbool.h:33
clang::Expr::Classification::CM_LValueCast
Definition: Expr.h:325
clang::CompoundLiteralExpr::getLParenLoc
SourceLocation getLParenLoc() const
Definition: Expr.h:2958
Kind
Kind
Definition: ChrootChecker.cpp:29
clang::DesignatedInitUpdateExpr::DesignatedInitUpdateExpr
DesignatedInitUpdateExpr(EmptyShell Empty)
Definition: Expr.h:4758
clang::CastExpr::path_size
unsigned path_size() const
Definition: Expr.h:3069
clang::PseudoObjectExpr
PseudoObjectExpr - An expression which accesses a pseudo-object l-value.
Definition: Expr.h:5299
clang::CStyleCastExpr::setLParenLoc
void setLParenLoc(SourceLocation L)
Definition: Expr.h:3251
clang::CXXCastPath
SmallVector< CXXBaseSpecifier *, 4 > CXXCastPath
A simple array of base specifiers.
Definition: Expr.h:54
clang::Expr::isInstantiationDependent
bool isInstantiationDependent() const
Whether this expression is instantiation-dependent, meaning that it depends in some way on a template...
Definition: Expr.h:191
clang::PseudoObjectExpr::TrailingObjects
friend TrailingObjects
Definition: Expr.h:5422
clang::StmtExpr::getSubStmt
const CompoundStmt * getSubStmt() const
Definition: Expr.h:3818
clang::ImaginaryLiteral::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:1533
clang::DeclRefExpr::getRAngleLoc
SourceLocation getRAngleLoc() const
Retrieve the location of the right angle bracket ending the explicit template argument list following...
Definition: Expr.h:1183
clang::CallExpr::const_arg_iterator
ConstExprIterator const_arg_iterator
Definition: Expr.h:2581
clang::OffsetOfExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:2200
clang::ExtVectorElementExpr::setAccessorLoc
void setAccessorLoc(SourceLocation L)
Definition: Expr.h:5142
clang::Expr::MLV_NotObjectType
Definition: Expr.h:271
clang::OpaqueValueExpr::children
const_child_range children() const
Definition: Expr.h:991
clang::OffsetOfNode::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:2100
clang::MemberExpr::getRAngleLoc
SourceLocation getRAngleLoc() const
Retrieve the location of the right angle bracket ending the explicit template argument list following...
Definition: Expr.h:2823
clang::PredefinedExpr::getFunctionName
StringLiteral * getFunctionName()
Definition: Expr.h:1813
clang::ConstantExpr::children
const_child_range children() const
Definition: Expr.h:931
clang::ParenListExpr::getNumExprs
unsigned getNumExprs() const
Return the number of expressions in this paren list.
Definition: Expr.h:4945
clang::DeclRefExpr::setLocation
void setLocation(SourceLocation L)
Definition: Expr.h:1123
clang::Expr::IgnoreParenImpCasts
const Expr * IgnoreParenImpCasts() const LLVM_READONLY
Definition: Expr.h:780
clang::SourceLocation
Encodes a location in the source.
Definition: SourceLocation.h:88
clang::PredefinedExpr::setLocation
void setLocation(SourceLocation L)
Definition: Expr.h:1811
clang::APFloatStorage::setValue
void setValue(const ASTContext &C, const llvm::APFloat &Val)
Definition: Expr.h:1303
clang::StringLiteral::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:1742
clang::Expr::MLV_ConstQualifiedField
Definition: Expr.h:278
clang::getInits
MutableArrayRef< Expr * > getInits()
Definition: OpenMPClause.h:2673
clang::DeclRefExpr::getFoundDecl
const NamedDecl * getFoundDecl() const
Get the NamedDecl through which this reference occurred.
Definition: Expr.h:1157
clang::BinaryOperator::getOperatorLoc
SourceLocation getOperatorLoc() const
Definition: Expr.h:3319
clang::BlockExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:5200
clang::ExtVectorElementExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:5155
clang::Expr::IgnoreParens
const Expr * IgnoreParens() const LLVM_READONLY
Definition: Expr.h:823
clang::UnaryOperator::getSubExpr
Expr * getSubExpr() const
Definition: Expr.h:1926
clang::Expr::getReferencedDeclOfCallee
const Decl * getReferencedDeclOfCallee() const
Definition: Expr.h:453
clang::DeclRefExpr::getLAngleLoc
SourceLocation getLAngleLoc() const
Retrieve the location of the left angle bracket starting the explicit template argument list followin...
Definition: Expr.h:1175
clang::DesignatedInitUpdateExpr::setUpdater
void setUpdater(Expr *Updater)
Definition: Expr.h:4774
clang::AsTypeExpr::getBuiltinLoc
SourceLocation getBuiltinLoc() const
getBuiltinLoc - Return the location of the __builtin_astype token.
Definition: Expr.h:5252
clang::NoInitExpr::NoInitExpr
NoInitExpr(EmptyShell Empty)
Definition: Expr.h:4719
clang::CastExpr::getCastKind
CastKind getCastKind() const
Definition: Expr.h:3044
clang::DesignatedInitExpr::getSubExpr
Expr * getSubExpr(unsigned Idx) const
Definition: Expr.h:4667
clang::VAArgExpr::children
child_range children()
Definition: Expr.h:4134
clang::Expr::MLV_NoSetterProperty
Definition: Expr.h:281
clang::CallExpr::getArgs
const Expr *const * getArgs() const
Definition: Expr.h:2547
clang::DeclarationNameInfo::getName
DeclarationName getName() const
getName - Returns the embedded declaration name.
Definition: DeclarationName.h:714
clang::ConstantExpr::Create
static ConstantExpr * Create(const ASTContext &Context, Expr *E)
Definition: Expr.h:909
clang::ASTVector::data
pointer data()
data - Return a pointer to the vector&#39;s buffer, even if empty().
Definition: ASTVector.h:154
clang::Expr::Classification::isModifiable
bool isModifiable() const
Definition: Expr.h:357
clang::BuiltinType::isPlaceholderTypeKind
static bool isPlaceholderTypeKind(Kind K)
Determines whether the given kind corresponds to a placeholder type.
Definition: Type.h:2448
clang::ConvertVectorExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:3957
clang::LabelDecl
Represents the declaration of a label.
Definition: Decl.h:469
clang::MemberExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:2912
clang::AddrLabelExpr::setLabelLoc
void setLabelLoc(SourceLocation L)
Definition: Expr.h:3774
clang::ParenListExpr::getExpr
const Expr * getExpr(unsigned Init) const
Definition: Expr.h:4952
clang::ExprObjectKind
ExprObjectKind
A further classification of the kind of object referenced by an l-value or x-value.
Definition: Specifiers.h:124
clang::PartialDiagnosticAt
std::pair< SourceLocation, PartialDiagnostic > PartialDiagnosticAt
A partial diagnostic along with the source location where this diagnostic occurs. ...
Definition: PartialDiagnostic.h:419
clang::Expr::ignoreParenBaseCasts
const Expr * ignoreParenBaseCasts() const LLVM_READONLY
Definition: Expr.h:800
clang::ArraySubscriptExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:2361
clang::PredefinedExpr::FuncSig
Definition: Expr.h:1774
clang::StringLiteral::getStrTokenLoc
SourceLocation getStrTokenLoc(unsigned TokNum) const
Get one of the string literal token.
Definition: Expr.h:1713
clang::OffsetOfExpr::children
child_range children()
Definition: Expr.h:2207
clang::StmtExpr::StmtExpr
StmtExpr(EmptyShell Empty)
Build an empty statement expression.
Definition: Expr.h:3815
clang::UnaryOperator::canOverflow
bool canOverflow() const
Returns true if the unary operator can cause an overflow.
Definition: Expr.h:1939
clang::CompoundAssignOperator::CompoundAssignOperator
CompoundAssignOperator(EmptyShell Empty)
Build an empty compound assignment operator expression.
Definition: Expr.h:3521
clang::StmtExpr::getRParenLoc
SourceLocation getRParenLoc() const
Definition: Expr.h:3826
clang::NestedNameSpecifier
Represents a C++ nested name specifier, such as "\::std::vector<int>::".
Definition: NestedNameSpecifier.h:49
clang::GenericSelectionExpr::getAssocExpr
Expr * getAssocExpr(unsigned i)
Definition: Expr.h:5046
clang::BinaryOperator::setLHS
void setLHS(Expr *E)
Definition: Expr.h:3328
clang::Expr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:866
clang::StringLiteral::isPascal
bool isPascal() const
Definition: Expr.h:1690
clang::ConstantExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:921
clang::APNumericStorage::VAL
uint64_t VAL
Used to store the <= 64 bits integer value.
Definition: Expr.h:1267
clang::MemberExpr::MemberExpr
MemberExpr(Expr *base, bool isarrow, SourceLocation operatorloc, ValueDecl *memberdecl, SourceLocation l, QualType ty, ExprValueKind VK, ExprObjectKind OK)
Definition: Expr.h:2743
clang::CastExpr::getSubExprAsWritten
const Expr * getSubExprAsWritten() const
Definition: Expr.h:3058
clang::CompoundLiteralExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:2983
clang::SubobjectAdjustment::Ptr
struct P Ptr
Definition: Expr.h:81
clang::UnaryExprOrTypeTraitExpr::getArgumentExpr
const Expr * getArgumentExpr() const
Definition: Expr.h:2270
clang::AtomicScopeModelKind::OpenCL
clang::AtomicExpr
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:5433
clang::UnaryExprOrTypeTraitExpr::getKind
UnaryExprOrTypeTrait getKind() const
Definition: Expr.h:2253
clang::AsTypeExpr::children
child_range children()
Definition: Expr.h:5265
clang::TypoExpr::children
const_child_range children() const
Definition: Expr.h:5576
clang::ParenListExpr::getExpr
Expr * getExpr(unsigned Init)
Definition: Expr.h:4947
clang::Expr::IgnoreCasts
const Expr * IgnoreCasts() const LLVM_READONLY
Strip off casts, but keep parentheses.
Definition: Expr.h:830
clang::InitListExpr::rbegin
const_reverse_iterator rbegin() const
Definition: Expr.h:4391
clang::Expr::isValueDependent
bool isValueDependent() const
isValueDependent - Determines whether this expression is value-dependent (C++ [temp.dep.constexpr]).
Definition: Expr.h:149
clang::CharacterLiteral::UTF8
Definition: Expr.h:1397
clang::GNUNullExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:4077
clang::StringLiteral::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:1741
clang::StmtExpr::getLParenLoc
SourceLocation getLParenLoc() const
Definition: Expr.h:3824
clang::StmtExpr::children
const_child_range children() const
Definition: Expr.h:3835
clang::DeclRefExpr::setDecl
void setDecl(ValueDecl *NewD)
Definition: Expr.h:1116
clang::CallExpr::arguments
arg_range arguments()
Definition: Expr.h:2585
llvm::SmallVector
Definition: LLVM.h:36
clang::UnaryExprOrTypeTraitExpr::setArgument
void setArgument(TypeSourceInfo *TInfo)
Definition: Expr.h:2278
clang::ConditionalOperator::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:3633
clang::ImplicitCastExpr
ImplicitCastExpr - Allows us to explicitly represent implicit type conversions, which have no direct ...
Definition: Expr.h:3115
clang::InitListExpr::getInits
Expr ** getInits()
Retrieve the set of initializers.
Definition: Expr.h:4218
clang::Expr::isLValue
bool isLValue() const
isLValue - True if this expression is an "l-value" according to the rules of the current language...
Definition: Expr.h:249
clang::CharacterLiteral::getKind
CharacterKind getKind() const
Definition: Expr.h:1419
clang::AtomicExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:5529
clang::InitListExpr::InitListExpr
InitListExpr(EmptyShell Empty)
Build an empty initializer list.
Definition: Expr.h:4212
clang::FixedPointLiteral::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:1369
clang::AtomicExpr::AtomicExpr
AtomicExpr(EmptyShell Empty)
Build an empty AtomicExpr.
Definition: Expr.h:5463
clang::DesignatedInitExpr::TrailingObjects
friend TrailingObjects
Definition: Expr.h:4701
clang::ImaginaryLiteral::getSubExpr
Expr * getSubExpr()
Definition: Expr.h:1530
clang::Expr::Classification::isRValue
bool isRValue() const
Definition: Expr.h:356
clang::BinaryOperator::isLogicalOp
static bool isLogicalOp(Opcode Opc)
Definition: Expr.h:3407
clang::MemberExpr::children
const_child_range children() const
Definition: Expr.h:2918
clang::CharacterLiteral
Definition: Expr.h:1392
clang::OffsetOfExpr::TrailingObjects
friend TrailingObjects
Definition: Expr.h:2216
clang::ParenListExpr::getExprs
Expr ** getExprs()
Definition: Expr.h:4956
clang::UnaryExprOrTypeTraitExpr::getArgumentExpr
Expr * getArgumentExpr()
Definition: Expr.h:2266
clang::ParenListExpr::exprs
ArrayRef< Expr * > exprs()
Definition: Expr.h:4960
clang::GenericSelectionExpr::children
child_range children()
Definition: Expr.h:5096
clang::Expr::Classification::CL_Function
Definition: Expr.h:308
clang::DesignatedInitExpr::FieldDesignator::NameOrField
uintptr_t NameOrField
Refers to the field that is being initialized.
Definition: Expr.h:4465
clang::StmtExpr
StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}).
Definition: Expr.h:3801
clang::PredefinedExpr::LFuncSig
Definition: Expr.h:1775
clang::Expr::LV_SubObjCPropertySetting
Definition: Expr.h:262
clang::OpaqueValueExpr::OpaqueValueExpr
OpaqueValueExpr(EmptyShell Empty)
Definition: Expr.h:971
clang::DesignatedInitExpr::ArrayOrRangeDesignator::LBracketLoc
unsigned LBracketLoc
The location of the &#39;[&#39; starting the array range designator.
Definition: Expr.h:4480
clang::Expr::IgnoreParenLValueCasts
const Expr * IgnoreParenLValueCasts() const LLVM_READONLY
Definition: Expr.h:788
clang::DesignatedInitExpr::children
child_range children()
Definition: Expr.h:4692
clang::CastExpr::path_end
path_const_iterator path_end() const
Definition: Expr.h:3073
clang::UnaryExprOrTypeTraitExpr::isArgumentType
bool isArgumentType() const
Definition: Expr.h:2258
clang::StringLiteral::tokloc_iterator
const SourceLocation * tokloc_iterator
Definition: Expr.h:1731
clang::FullExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:897
clang::InitListExpr::getArrayFiller
Expr * getArrayFiller()
If this initializer list initializes an array with more elements than there are initializers in the l...
Definition: Expr.h:4279
clang::VAArgExpr::setSubExpr
void setSubExpr(Expr *E)
Definition: Expr.h:4111
clang::InitListExpr::sawArrayRangeDesignator
void sawArrayRangeDesignator(bool ARD=true)
Definition: Expr.h:4356
clang::ImplicitCastExpr::isPartOfExplicitCast
bool isPartOfExplicitCast() const
Definition: Expr.h:3134
clang::ImplicitCastExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:3150
clang::MultiVersionKind::None
clang::Stmt::EmptyShell
A placeholder type used to construct an empty shell of a type, that will be filled in later (e...
Definition: Stmt.h:976
clang::Expr::getExprLoc
SourceLocation getExprLoc() const LLVM_READONLY
getExprLoc - Return the preferred location for the arrow when diagnosing a problem with a generic exp...
Definition: Expr.cpp:215
clang::DeclRefExpr::hasTemplateKeyword
bool hasTemplateKeyword() const
Determines whether the name in this declaration reference was preceded by the template keyword...
Definition: Expr.h:1191
clang::CompoundLiteralExpr::getInitializer
const Expr * getInitializer() const
Definition: Expr.h:2951
clang::BinaryOperator::getLHS
Expr * getLHS() const
Definition: Expr.h:3327
clang::CompoundAssignOperator
CompoundAssignOperator - For compound assignments (e.g.
Definition: Expr.h:3504
clang::DeclAccessPair
A POD class for pairing a NamedDecl* with an access specifier.
Definition: DeclAccessPair.h:30
clang::DeclarationNameLoc
DeclarationNameLoc - Additional source/type location info for a declaration name. ...
Definition: DeclarationName.h:651
clang::GenericSelectionExpr
Represents a C11 generic selection.
Definition: Expr.h:5010
clang::VAArgExpr::VAArgExpr
VAArgExpr(SourceLocation BLoc, Expr *e, TypeSourceInfo *TInfo, SourceLocation RPLoc, QualType t, bool IsMS)
Definition: Expr.h:4096
clang::ExtVectorElementExpr::getBase
const Expr * getBase() const
Definition: Expr.h:5134
clang::Expr::EvalStatus
EvalStatus is a struct with detailed info about an evaluation in progress.
Definition: Expr.h:541
clang::FullExpr::getSubExpr
Expr * getSubExpr()
Definition: Expr.h:891
clang::ArrayInitLoopExpr::ArrayInitLoopExpr
ArrayInitLoopExpr(QualType T, Expr *CommonInit, Expr *ElementInit)
Definition: Expr.h:4810
clang::AddrLabelExpr
AddrLabelExpr - The GNU address of label extension, representing &&label.
Definition: Expr.h:3757
clang::PseudoObjectExpr::getResultExpr
Expr * getResultExpr()
Return the result-bearing expression, or null if there is none.
Definition: Expr.h:5354
clang::Expr::LV_NotObjectType
Definition: Expr.h:256
clang::Expr::Expr
Expr(StmtClass SC, EmptyShell)
Construct an empty expression.
Definition: Expr.h:125
clang::BinaryConditionalOperator::getOpaqueValue
OpaqueValueExpr * getOpaqueValue() const
getOpaqueValue - Return the opaque value placeholder.
Definition: Expr.h:3698
clang::CastExpr::getTargetUnionField
const FieldDecl * getTargetUnionField() const
Definition: Expr.h:3075
clang::Expr::Classification::CL_AddressableVoid
Definition: Expr.h:310
clang::InitListExpr::getInitializedFieldInUnion
const FieldDecl * getInitializedFieldInUnion() const
Definition: Expr.h:4300
clang::NoInitExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:4722
clang::BinaryConditionalOperator::getFalseExpr
Expr * getFalseExpr() const
getFalseExpr - Return the subexpression which will be evaluated if the condnition evaluates to false;...
Definition: Expr.h:3714
clang::BinaryOperator::BinaryOperator
BinaryOperator(StmtClass SC, EmptyShell Empty)
Definition: Expr.h:3493
clang::FloatingLiteral::setLocation
void setLocation(SourceLocation L)
Definition: Expr.h:1494
clang::OpaqueValueExpr::getExprLoc
SourceLocation getExprLoc() const LLVM_READONLY
Definition: Expr.h:983
clang::ConditionalOperator::classof
static bool classof(const Stmt *T)
Definition: Expr.h:3637
clang::OffsetOfNode::OffsetOfNode
OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, SourceLocation NameLoc)
Create an offsetof node that refers to a field.
Definition: Expr.h:2052
clang::InitListExpr::begin
iterator begin()
Definition: Expr.h:4386
clang::Expr::Classification::CM_Untested
Definition: Expr.h:321
clang::GenericSelectionExpr::getNumAssocs
unsigned getNumAssocs() const
Definition: Expr.h:5037
Decl.h
clang
Dataflow Directional Tag Classes.
Definition: CFGReachabilityAnalysis.h:22
clang::GenericSelectionExpr::isResultDependent
bool isResultDependent() const
Whether this generic selection is result-dependent.
Definition: Expr.h:5074
clang::SourceLocation::isValid
bool isValid() const
Return true if this is a valid SourceLocation object.
Definition: SourceLocation.h:108
clang::children
child_range children()
Definition: OpenMPClause.h:2827
clang::StringLiteral::Wide
Definition: Expr.h:1588
clang::APFloatStorage
Definition: Expr.h:1298
clang::Expr::EvalStatus::hasSideEffects
bool hasSideEffects() const
Definition: Expr.h:565
clang::StringLiteral::tokloc_begin
tokloc_iterator tokloc_begin() const
Definition: Expr.h:1733
clang::ChooseExpr::setBuiltinLoc
void setBuiltinLoc(SourceLocation L)
Definition: Expr.h:4030
clang::MemberExpr::getTemplateArgs
const TemplateArgumentLoc * getTemplateArgs() const
Retrieve the template arguments provided as part of this template-id.
Definition: Expr.h:2846
clang::PredefinedExpr
[C99 6.4.2.2] - A predefined identifier such as func.
Definition: Expr.h:1758
clang::MemberExpr::getMemberNameInfo
DeclarationNameInfo getMemberNameInfo() const
Retrieve the member declaration name info.
Definition: Expr.h:2867
clang::UnaryOperatorKind
UnaryOperatorKind
Definition: OperationKinds.h:31
clang::AtomicExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:5526
clang::Expr::EvalResult
EvalResult is a struct with detailed info about an evaluated expression.
Definition: Expr.h:571
clang::ASTVector::reverse_iterator
std::reverse_iterator< iterator > reverse_iterator
Definition: ASTVector.h:90
clang::OverloadedOperatorKind
OverloadedOperatorKind
Enumeration specifying the different kinds of C++ overloaded operators.
Definition: OperatorKinds.h:22
clang::CharacterLiteral::CharacterKind
CharacterKind
Definition: Expr.h:1394
clang::CallExpr::setRParenLoc
void setRParenLoc(SourceLocation L)
Definition: Expr.h:2636
clang::UnaryOperator::Opcode
UnaryOperatorKind Opcode
Definition: Expr.h:1900
clang::Expr::Classification::getModifiable
ModifiableType getModifiable() const
Definition: Expr.h:348
clang::AddrLabelExpr::setLabel
void setLabel(LabelDecl *L)
Definition: Expr.h:3780
clang::InitListExpr::isExplicit
bool isExplicit() const
Definition: Expr.h:4313
clang::BinaryOperator::isShiftAssignOp
static bool isShiftAssignOp(Opcode Opc)
Definition: Expr.h:3429
clang::BinaryOperator::isShiftOp
bool isShiftOp() const
Definition: Expr.h:3366
clang::ExplicitCastExpr::setTypeInfoAsWritten
void setTypeInfoAsWritten(TypeSourceInfo *writtenTy)
Definition: Expr.h:3209
clang::BinaryConditionalOperator::BinaryConditionalOperator
BinaryConditionalOperator(EmptyShell Empty)
Build an empty conditional operator.
Definition: Expr.h:3689
clang::ASTReader
Reads an AST files chain containing the contents of a translation unit.
Definition: ASTReader.h:355
clang::DesignatedInitExpr::FieldDesignator
A field designator, e.g., ".x".
Definition: Expr.h:4458
clang::ExtVectorElementExpr::getBase
Expr * getBase()
Definition: Expr.h:5135
clang::InitListExpr::reverse_iterator
InitExprsTy::reverse_iterator reverse_iterator
Definition: Expr.h:4383
clang::OpaqueValueExpr::setIsUnique
void setIsUnique(bool V)
Definition: Expr.h:1005
clang::ExtVectorElementExpr::ExtVectorElementExpr
ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base, IdentifierInfo &accessor, SourceLocation loc)
Definition: Expr.h:5121
clang::ParenExpr::children
child_range children()
Definition: Expr.h:1880
clang::ImaginaryLiteral::setSubExpr
void setSubExpr(Expr *E)
Definition: Expr.h:1531
clang::GenericSelectionExpr::getAssocType
QualType getAssocType(unsigned i) const
Definition: Expr.h:5061
clang::CastExpr::setSubExpr
void setSubExpr(Expr *E)
Definition: Expr.h:3052
type
IteratorComparison::getOpcode
BinaryOperator::Opcode getOpcode(const SymExpr *SE)
clang::AtomicExpr::isOpenCL
bool isOpenCL() const
Definition: Expr.h:5518
clang::CompoundLiteralExpr::setFileScope
void setFileScope(bool FS)
Definition: Expr.h:2956
clang::FloatingLiteral::setExact
void setExact(bool E)
Definition: Expr.h:1486
clang::OpaqueValueExpr::OpaqueValueExpr
OpaqueValueExpr(SourceLocation Loc, QualType T, ExprValueKind VK, ExprObjectKind OK=OK_Ordinary, Expr *SourceExpr=nullptr)
Definition: Expr.h:950
clang::ExtVectorElementExpr::children
child_range children()
Definition: Expr.h:5169
clang::CallExpr::getCalleeDecl
const Decl * getCalleeDecl() const
Definition: Expr.h:2527
clang::Expr::getSourceBitField
const FieldDecl * getSourceBitField() const
Definition: Expr.h:448
clang::CallExpr::usesADL
bool usesADL() const
Definition: Expr.h:2524
clang::InitListExpr::getLBraceLoc
SourceLocation getLBraceLoc() const
Definition: Expr.h:4330
clang::Stmt::getStmtClass
StmtClass getStmtClass() const
Definition: Stmt.h:1029
clang::CastExpr::getCastKindName
const char * getCastKindName() const
Definition: Expr.h:3048
clang::PseudoObjectExpr::children
const_child_range children() const
Definition: Expr.h:5412
clang::InitListExpr::getArrayFiller
const Expr * getArrayFiller() const
Definition: Expr.h:4282
clang::Expr::NPCK_ZeroExpression
Expression is a Null pointer constant built from a zero integer expression that is not a simple...
Definition: Expr.h:695
clang::Expr::Classification::getKind
Kinds getKind() const
Definition: Expr.h:347
clang::PseudoObjectExpr::semantics
llvm::iterator_range< const_semantics_iterator > semantics() const
Definition: Expr.h:5383
clang::Expr::setInstantiationDependent
void setInstantiationDependent(bool ID)
Set whether this expression is instantiation-dependent or not.
Definition: Expr.h:196
clang::ASTVector::const_iterator
const T * const_iterator
Definition: ASTVector.h:87
clang::OffsetOfNode::Kind
Kind
The kind of offsetof node we have.
Definition: Expr.h:2016
clang::Expr::NPCK_CXX11_nullptr
Expression is a C++11 nullptr.
Definition: Expr.h:701
clang::OffsetOfNode::OffsetOfNode
OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, SourceLocation NameLoc)
Create an offsetof node that refers to an identifier.
Definition: Expr.h:2057
clang::MemberPointerType
A pointer to member type per C++ 8.3.3 - Pointers to members.
Definition: Type.h:2756
clang::FixedPointLiteral::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:1370
clang::CastExpr::getSubExpr
const Expr * getSubExpr() const
Definition: Expr.h:3051
clang::VAArgExpr::VAArgExpr
VAArgExpr(EmptyShell Empty)
Create an empty __builtin_va_arg expression.
Definition: Expr.h:4106
clang::PseudoObjectExpr::semantics_begin
semantics_iterator semantics_begin()
Definition: Expr.h:5367
clang::StmtExpr::setLParenLoc
void setLParenLoc(SourceLocation L)
Definition: Expr.h:3825
clang::Expr::Classification::CM_ConstQualifiedField
Definition: Expr.h:328
clang::ExplicitCastExpr
ExplicitCastExpr - An explicit cast written in the source code.
Definition: Expr.h:3190
clang::DeclarationNameInfo
DeclarationNameInfo - A collector data type for bundling together a DeclarationName and the correspnd...
Definition: DeclarationName.h:691
clang::UnaryOperator::isPrefix
static bool isPrefix(Opcode Op)
isPrefix - Return true if this is a prefix operation, like –x.
Definition: Expr.h:1948
clang::InitListExpr::setInitializedFieldInUnion
void setInitializedFieldInUnion(FieldDecl *FD)
Definition: Expr.h:4303
clang::ChooseExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:4038
clang::BinaryOperator::isPtrMemOp
bool isPtrMemOp() const
Definition: Expr.h:3357
clang::ExplicitCastExpr::ExplicitCastExpr
ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize)
Construct an empty explicit cast.
Definition: Expr.h:3202
clang::APIntStorage::getValue
llvm::APInt getValue() const
Definition: Expr.h:1292
clang::AtomicExpr::getNumSubExprs
unsigned getNumSubExprs() const
Definition: Expr.h:5498
clang::AddrLabelExpr::getLabel
LabelDecl * getLabel() const
Definition: Expr.h:3779
clang::ArraySubscriptExpr::setRBracketLoc
void setRBracketLoc(SourceLocation L)
Definition: Expr.h:2369
clang::CastExpr::path_end
path_iterator path_end()
Definition: Expr.h:3071
clang::Expr::hasPlaceholderType
bool hasPlaceholderType(BuiltinType::Kind K) const
Returns whether this expression has a specific placeholder type.
Definition: Expr.h:477
clang::StringLiteral::getByteLength
unsigned getByteLength() const
Definition: Expr.h:1677
clang::ConstStmtIterator
Definition: StmtIterator.h:141
clang::ShuffleVectorExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:3873
clang::DesignatedInitExpr::Designator::getFieldLoc
SourceLocation getFieldLoc() const
Definition: Expr.h:4566
clang::AtomicExpr::getOrderFail
Expr * getOrderFail() const
Definition: Expr.h:5481
clang::DeclRefExpr::getNameInfo
DeclarationNameInfo getNameInfo() const
Definition: Expr.h:1118
clang::Expr::EvalStatus::HasSideEffects
bool HasSideEffects
Whether the evaluated expression has side effects.
Definition: Expr.h:544
clang::MemberExpr::setHadMultipleCandidates
void setHadMultipleCandidates(bool V=true)
Sets the flag telling whether this expression refers to a method that was resolved from an overloaded...
Definition: Expr.h:2900
clang::MemberExpr::MemberExpr
MemberExpr(Expr *base, bool isarrow, SourceLocation operatorloc, ValueDecl *memberdecl, const DeclarationNameInfo &NameInfo, QualType ty, ExprValueKind VK, ExprObjectKind OK)
Definition: Expr.h:2723
clang::TemplateArgumentLoc
Location wrapper for a TemplateArgument.
Definition: TemplateBase.h:450
getInfo
static const TypeInfo & getInfo(unsigned id)
Definition: Types.cpp:34
clang::CharacterLiteral::Wide
Definition: Expr.h:1396
TemplateBase.h
clang::ShuffleVectorExpr::getBuiltinLoc
SourceLocation getBuiltinLoc() const
Definition: Expr.h:3864
clang::CompoundLiteralExpr::CompoundLiteralExpr
CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, QualType T, ExprValueKind VK, Expr *init, bool fileScope)
Definition: Expr.h:2937
clang::IntegerLiteral::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:1331
clang::CompoundAssignOperator::classof
static bool classof(const Stmt *S)
Definition: Expr.h:3533
clang::ExtVectorElementExpr::children
const_child_range children() const
Definition: Expr.h:5170
clang::ArraySubscriptExpr
ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting.
Definition: Expr.h:2312
clang::StringLiteral::isUTF32
bool isUTF32() const
Definition: Expr.h:1689
clang::BinaryOperator::classof
static bool classof(const Stmt *S)
Definition: Expr.h:3442
clang::AbstractConditionalOperator
AbstractConditionalOperator - An abstract base class for ConditionalOperator and BinaryConditionalOpe...
Definition: Expr.h:3540
clang::GenericSelectionExpr::getAssocTypeSourceInfo
TypeSourceInfo * getAssocTypeSourceInfo(unsigned i)
Definition: Expr.h:5056
clang::TypoExpr::children
child_range children()
Definition: Expr.h:5573
clang::CallExpr::arg_begin
arg_iterator arg_begin()
Definition: Expr.h:2590
clang::DeclRefExpr::children
const_child_range children() const
Definition: Expr.h:1252
clang::OffsetOfExpr::setIndexExpr
void setIndexExpr(unsigned Idx, Expr *E)
Definition: Expr.h:2190
clang::Expr::Classification::CM_ArrayType
Definition: Expr.h:330
clang::OpaqueValueExpr::getLocation
SourceLocation getLocation() const
Retrieve the location of this expression.
Definition: Expr.h:975
TrailingObjects
friend TrailingObjects
Definition: OpenMPClause.h:99
clang::ImaginaryLiteral::children
child_range children()
Definition: Expr.h:1543
clang::ParenListExpr::getEndLoc
SourceLocation getEndLoc() const
Definition: Expr.h:4967
clang::BinaryConditionalOperator::getCond
Expr * getCond() const
getCond - Return the condition expression; this is defined in terms of the opaque value...
Definition: Expr.h:3702
clang::ChooseExpr::getRParenLoc
SourceLocation getRParenLoc() const
Definition: Expr.h:4032
clang::OpaqueValueExpr::isUnique
bool isUnique() const
Definition: Expr.h:1011
clang::Expr::Classification::CM_ConstQualified
Definition: Expr.h:327
clang::ChooseExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:4035
clang::FloatingLiteral::classof
static bool classof(const Stmt *T)
Definition: Expr.h:1499
clang::DesignatedInitExpr::Designator::getField
FieldDecl * getField() const
Definition: Expr.h:4548
clang::BinaryOperator::children
const_child_range children() const
Definition: Expr.h:3451
clang::AsTypeExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:5258
clang::ImaginaryLiteral::ImaginaryLiteral
ImaginaryLiteral(Expr *val, QualType Ty)
Definition: Expr.h:1520
clang::UnaryExprOrTypeTraitExpr::setKind
void setKind(UnaryExprOrTypeTrait K)
Definition: Expr.h:2256
clang::UnaryExprOrTypeTraitExpr::setRParenLoc
void setRParenLoc(SourceLocation L)
Definition: Expr.h:2293
clang::UnaryOperator::getOpcode
Opcode getOpcode() const
Definition: Expr.h:1921
clang::BinaryOperator::isAdditiveOp
static bool isAdditiveOp(Opcode Opc)
Definition: Expr.h:3363
clang::ReferenceType
Base for LValueReferenceType and RValueReferenceType.
Definition: Type.h:2673
clang::ChooseExpr::setRHS
void setRHS(Expr *E)
Definition: Expr.h:4027
clang::Expr::LValueClassification
LValueClassification
Definition: Expr.h:254
clang::BinaryOperator::setOperatorLoc
void setOperatorLoc(SourceLocation L)
Definition: Expr.h:3320
clang::FloatingLiteral::setValue
void setValue(const ASTContext &C, const llvm::APFloat &Val)
Definition: Expr.h:1462
clang::ParenListExpr::getBeginLoc
SourceLocation getBeginLoc() const
Definition: Expr.h:4966
clang::StringLiteral::getBytes
StringRef getBytes() const
Allow access to clients that need the byte representation, such as ASTWriterStmt::VisitStringLiteral(...
Definition: Expr.h:1657
clang::ArrayInitLoopExpr::children
child_range children()
Definition: Expr.h:4843
clang::GenericSelectionExpr::getDefaultLoc
SourceLocation getDefaultLoc() const
Definition: Expr.h:5040
clang::ArraySubscriptExpr::children
const_child_range children() const
Definition: Expr.h:2385
clang::UnaryExprOrTypeTraitExpr::UnaryExprOrTypeTraitExpr
UnaryExprOrTypeTraitExpr(EmptyShell Empty)
Construct an empty sizeof/alignof expression.
Definition: Expr.h:2250
clang::Expr::IgnoreImpCasts
const Expr * IgnoreImpCasts() const LLVM_READONLY
Definition: Expr.h:820
clang::SubobjectAdjustment::SubobjectAdjustment
SubobjectAdjustment(const MemberPointerType *MPT, Expr *RHS)
Definition: Expr.h:96
clang::CallExpr::arg_iterator
ExprIterator arg_iterator
Definition: Expr.h:2580
clang::CompoundLiteralExpr::setLParenLoc
void setLParenLoc(SourceLocation L)
Definition: Expr.h:2959
clang::MemberExpr::getNumTemplateArgs
unsigned getNumTemplateArgs() const
Retrieve the number of template arguments provided as part of this template-id.
Definition: Expr.h:2855
clang::APValue
APValue - This class implements a discriminated union of [uninitialized] [APSInt] [APFloat]...
Definition: APValue.h:38
clang::ArraySubscriptExpr::ArraySubscriptExpr
ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, ExprValueKind VK, ExprObjectKind OK, SourceLocation rbracketloc)
Definition: Expr.h:2319
clang::CompoundLiteralExpr::children
const_child_range children() const
Definition: Expr.h:2989
clang::CXXBaseSpecifier
Represents a base class of a C++ class.
Definition: DeclCXX.h:192
clang::CharacterLiteral::CharacterLiteral
CharacterLiteral(unsigned value, CharacterKind kind, QualType type, SourceLocation l)
Definition: Expr.h:1407
clang::OK_BitField
A bitfield object is a bitfield on a C or C++ record.
Definition: Specifiers.h:129
clang::ASTVector::begin
iterator begin()
Definition: ASTVector.h:98
clang::Expr::Classification::isGLValue
bool isGLValue() const
Definition: Expr.h:354
clang::DesignatedInitExpr::children
const_child_range children() const
Definition: Expr.h:4696
clang::UnaryOperator::setOperatorLoc
void setOperatorLoc(SourceLocation L)
Definition: Expr.h:1931
clang::IntegerLiteral::setLocation
void setLocation(SourceLocation Location)
Definition: Expr.h:1336
clang::UnaryOperator::isIncrementOp
static bool isIncrementOp(Opcode Op)
Definition: Expr.h:1955
clang::ChooseExpr::getRHS
Expr * getRHS() const
Definition: Expr.h:4026
clang::PredefinedExpr::Func
Definition: Expr.h:1770
clang::DeclRefExpr::setHadMultipleCandidates
void setHadMultipleCandidates(bool V=true)
Sets the flag telling whether this expression refers to a function that was resolved from an overload...
Definition: Expr.h:1233
clang::UnaryOperator::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:1991
clang::InitListExpr::rend
reverse_iterator rend()
Definition: Expr.h:4392
clang::ConvertVectorExpr::getSrcExpr
Expr * getSrcExpr() const
getSrcExpr - Return the Expr to be converted.
Definition: Expr.h:3938
clang::UnaryOperator::isArithmeticOp
bool isArithmeticOp() const
Definition: Expr.h:1977
clang::DesignatedInitExpr::Designator::Designator
Designator()
Definition: Expr.h:4511
clang::ImplicitValueInitExpr::ImplicitValueInitExpr
ImplicitValueInitExpr(EmptyShell Empty)
Construct an empty implicit value initialization.
Definition: Expr.h:4900
clang::CastExpr::children
child_range children()
Definition: Expr.h:3091
clang::BinaryOperator::Opcode
BinaryOperatorKind Opcode
Definition: Expr.h:3292
clang::BlockExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:5210
ASTVector.h
clang::DeclRefExpr::template_arguments
ArrayRef< TemplateArgumentLoc > template_arguments() const
Definition: Expr.h:1221
clang::StmtExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:3829
clang::VAArgExpr::setBuiltinLoc
void setBuiltinLoc(SourceLocation L)
Definition: Expr.h:4121
clang::BinaryConditionalOperator::classof
static bool classof(const Stmt *T)
Definition: Expr.h:3725
clang::Expr::NPCK_ZeroLiteral
Expression is a Null pointer constant built from a literal zero.
Definition: Expr.h:698
clang::ConvertVectorExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:3954
clang::MemberExpr
MemberExpr - [C99 6.5.2.3] Structure and Union Members.
Definition: Expr.h:2682
clang::ImaginaryLiteral::children
const_child_range children() const
Definition: Expr.h:1544
clang::Expr::MLV_ConstQualified
Definition: Expr.h:277
clang::ExtVectorElementExpr::setBase
void setBase(Expr *E)
Definition: Expr.h:5136
clang::BinaryConditionalOperator::BinaryConditionalOperator
BinaryConditionalOperator(Expr *common, OpaqueValueExpr *opaqueValue, Expr *cond, Expr *lhs, Expr *rhs, SourceLocation qloc, SourceLocation cloc, QualType t, ExprValueKind VK, ExprObjectKind OK)
Definition: Expr.h:3668
clang::CastExpr::path_iterator
CXXBaseSpecifier ** path_iterator
Definition: Expr.h:3066
SyncScope.h
Provides definitions for the atomic synchronization scopes.
clang::CXXRecordDecl
Represents a C++ struct/union/class.
Definition: DeclCXX.h:300
clang::BinaryOperator::isCompoundAssignmentOp
static bool isCompoundAssignmentOp(Opcode Opc)
Definition: Expr.h:3415
clang::ConditionalOperator::getTrueExpr
Expr * getTrueExpr() const
Definition: Expr.h:3620
clang::ArrayInitLoopExpr
Represents a loop initializing the elements of an array.
Definition: Expr.h:4803
clang::InitListExpr::isSyntacticForm
bool isSyntacticForm() const
Definition: Expr.h:4339
clang::ChooseExpr
ChooseExpr - GNU builtin-in function __builtin_choose_expr.
Definition: Expr.h:3977
clang::ParenExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:1864
clang::ExtVectorElementExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:5164
clang::BinaryConditionalOperator
BinaryConditionalOperator - The GNU extension to the conditional operator which allows the middle ope...
Definition: Expr.h:3655
clang::OffsetOfExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:2202
clang::ParenListExpr::getRParenLoc
SourceLocation getRParenLoc() const
Definition: Expr.h:4965
clang::SourceLocation::isInvalid
bool isInvalid() const
Definition: SourceLocation.h:109
clang::ConditionalOperator::getRHS
Expr * getRHS() const
Definition: Expr.h:3628
clang::BinaryOperator::isMultiplicativeOp
bool isMultiplicativeOp() const
Definition: Expr.h:3362
clang::AttrSyntax::C
clang::CallExpr::hasUnusedResultAttr
bool hasUnusedResultAttr(const ASTContext &Ctx) const
Returns true if this call expression should warn on unused results.
Definition: Expr.h:2631
clang::StringLiteral::getNumConcatenated
unsigned getNumConcatenated() const
getNumConcatenated - Get the number of string literal tokens that were concatenated in translation ph...
Definition: Expr.h:1708
clang::StringLiteral::containsNonAscii
bool containsNonAscii() const
Definition: Expr.h:1692
clang::Expr::Classification::isPRValue
bool isPRValue() const
Definition: Expr.h:355
clang::Expr::containsUnexpandedParameterPack
bool containsUnexpandedParameterPack() const
Whether this expression contains an unexpanded parameter pack (for C++11 variadic templates)...
Definition: Expr.h:214
clang::Expr::isRValue
bool isRValue() const
Definition: Expr.h:250
clang::Expr::Classification::CL_ArrayTemporary
Definition: Expr.h:315
clang::OpaqueValueExpr::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:977
clang::UnaryOperator::isPrefix
bool isPrefix() const
Definition: Expr.h:1952
clang::diag::kind
unsigned kind
All of the diagnostics that can be emitted by the frontend.
Definition: DiagnosticIDs.h:61
clang::BuiltinType
This class is used for builtin types like &#39;int&#39;.
Definition: Type.h:2391
clang::Expr::Classification::isXValue
bool isXValue() const
Definition: Expr.h:353
clang::CallExpr::setPreArg
void setPreArg(unsigned I, Stmt *PreArg)
Definition: Expr.h:2472
clang::SubobjectAdjustment::DerivedToBaseAdjustment
Definition: Expr.h:63
clang::BlockExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:5203
clang::InitListExpr::getInit
Expr * getInit(unsigned Init)
Definition: Expr.h:4238
clang::SubobjectAdjustment::Field
FieldDecl * Field
Definition: Expr.h:80
clang::GNUNullExpr::setTokenLocation
void setTokenLocation(SourceLocation L)
Definition: Expr.h:4072
clang::ConvertVectorExpr::getBuiltinLoc
SourceLocation getBuiltinLoc() const
getBuiltinLoc - Return the location of the __builtin_convertvector token.
Definition: Expr.h:3949
clang::StringLiteral
StringLiteral - This represents a string literal expression, e.g.
Definition: Expr.h:1566
clang::CallExpr
CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]).
Definition: Expr.h:2396
clang::FloatingLiteral::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:1496
clang::Expr::MLV_Valid
Definition: Expr.h:270
clang::SubobjectAdjustment::P::MPT
const MemberPointerType * MPT
Definition: Expr.h:74
clang::DesignatedInitExpr::designators
llvm::ArrayRef< Designator > designators() const
Definition: Expr.h:4626
clang::DesignatedInitExpr::getDesignator
Designator * getDesignator(unsigned Idx)
Definition: Expr.h:4630
clang::DesignatedInitExpr::setInit
void setInit(Expr *init)
Definition: Expr.h:4657
clang::BinaryOperator::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:3332
clang::AddrLabelExpr::children
child_range children()
Definition: Expr.h:3787
clang::AbstractConditionalOperator::AbstractConditionalOperator
AbstractConditionalOperator(StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, bool TD, bool VD, bool ID, bool ContainsUnexpandedParameterPack, SourceLocation qloc, SourceLocation cloc)
Definition: Expr.h:3545
clang::ChooseExpr::getLHS
Expr * getLHS() const
Definition: Expr.h:4024
getKind
static Decl::Kind getKind(const Decl *D)
Definition: DeclBase.cpp:954
clang::SubobjectAdjustment::MemberPointerAdjustment
Definition: Expr.h:65
clang::Expr::EvalStatus::EvalStatus
EvalStatus()
Definition: Expr.h:560
clang::ImplicitValueInitExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:4903
clang::BinaryConditionalOperator::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:3718
clang::MemberExprNameQualifier::FoundDecl
DeclAccessPair FoundDecl
The DeclAccessPair through which the MemberDecl was found due to name qualifiers. ...
Definition: Expr.h:2677
clang::OffsetOfExpr::getNumComponents
unsigned getNumComponents() const
Definition: Expr.h:2176
clang::Type::isDependentType
bool isDependentType() const
Whether this type is a dependent type, meaning that its definition somehow depends on a template para...
Definition: Type.h:2079
clang::CallExpr::ADLCallKind
ADLCallKind
Definition: Expr.h:2443
clang::ASTVector::const_reverse_iterator
std::reverse_iterator< const_iterator > const_reverse_iterator
Definition: ASTVector.h:89
clang::CharacterLiteral::setKind
void setKind(CharacterKind kind)
Definition: Expr.h:1429
clang::DeclRefExpr
A reference to a declared variable, function, enum, etc.
Definition: Expr.h:1041
clang::BinaryOperator::getRHS
Expr * getRHS() const
Definition: Expr.h:3329
clang::UnaryExprOrTypeTraitExpr::Ex
Stmt * Ex
Definition: Expr.h:2225
PTR
#define PTR(CLASS)
Definition: AttrVisitor.h:28
clang::BinaryOperator::isBitwiseOp
bool isBitwiseOp() const
Definition: Expr.h:3369
clang::UnaryOperator::isIncrementDecrementOp
bool isIncrementDecrementOp() const
Definition: Expr.h:1970
clang::PseudoObjectExpr::getSemanticExpr
Expr * getSemanticExpr(unsigned index)
Definition: Expr.h:5387
clang::ChooseExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:4036
clang::CharacterLiteral::getLocation
SourceLocation getLocation() const
Definition: Expr.h:1418
clang::AtomicExpr::getSubExprs
const Expr *const * getSubExprs() const
Definition: Expr.h:5501
clang::InitListExpr::getInitializedFieldInUnion
FieldDecl * getInitializedFieldInUnion()
If this initializes a union, specifies which field in the union to initialize.
Definition: Expr.h:4297
clang::ChooseExpr::isConditionDependent
bool isConditionDependent() const
Definition: Expr.h:4012
clang::Expr::LV_InvalidMessageExpression
Definition: Expr.h:260
true
#define true
Definition: stdbool.h:32
clang::Expr::MLV_DuplicateVectorComponents
Definition: Expr.h:273
clang::VK_LValue
An l-value expression is a reference to an object with independent storage.
Definition: Specifiers.h:114
clang::ASTVector< Stmt * >
clang::StringLiteral::isUTF16
bool isUTF16() const
Definition: Expr.h:1688
clang::SourceRange
A trivial tuple used to represent a source range.
Definition: SourceLocation.h:198
clang::NamedDecl
This represents a decl that may have a name.
Definition: Decl.h:249
clang::MemberExpr::getTemplateKeywordLoc
SourceLocation getTemplateKeywordLoc() const
Retrieve the location of the template keyword preceding the member name, if any.
Definition: Expr.h:2807
clang::DeclRefExpr::getQualifier
NestedNameSpecifier * getQualifier() const
If the name was qualified, retrieves the nested-name-specifier that precedes the name.
Definition: Expr.h:1141
clang::OffsetOfExpr
OffsetOfExpr - [C99 7.17] - This represents an expression of the form offsetof(record-type, member-designator).
Definition: Expr.h:2117
clang::OpaqueValueExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:980
clang::DesignatedInitExpr::Designator::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:4601
clang::ExplicitCastExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:3215
clang::AtomicExpr::getBuiltinLoc
SourceLocation getBuiltinLoc() const
Definition: Expr.h:5523
clang::UnaryOperator::isDecrementOp
static bool isDecrementOp(Opcode Op)
Definition: Expr.h:1962
clang::BinaryConditionalOperator::getCommon
Expr * getCommon() const
getCommon - Return the common expression, written to the left of the condition.
Definition: Expr.h:3695
clang::VAArgExpr::getWrittenTypeInfo
TypeSourceInfo * getWrittenTypeInfo() const
Definition: Expr.h:4117
clang::SubobjectAdjustment::DTB::DerivedClass
const CXXRecordDecl * DerivedClass
Definition: Expr.h:70
clang::Expr::MLV_ConstAddrSpace
Definition: Expr.h:279
clang::CastExpr::path_begin
path_const_iterator path_begin() const
Definition: Expr.h:3072
clang::PredefinedExpr::children
child_range children()
Definition: Expr.h:1836
clang::BlockExpr::getBlockDecl
BlockDecl * getBlockDecl()
Definition: Expr.h:5192
clang::Decl::isInStdNamespace
bool isInStdNamespace() const
Definition: DeclBase.cpp:357
clang::UnaryOperator::classof
static bool classof(const Stmt *T)
Definition: Expr.h:1999
clang::GenericSelectionExpr::getGenericLoc
SourceLocation getGenericLoc() const
Definition: Expr.h:5039
clang::Expr::Classification::isLValue
bool isLValue() const
Definition: Expr.h:352
clang::SubobjectAdjustment::SubobjectAdjustment
SubobjectAdjustment(const CastExpr *BasePath, const CXXRecordDecl *DerivedClass)
Definition: Expr.h:84
clang::ImaginaryLiteral::ImaginaryLiteral
ImaginaryLiteral(EmptyShell Empty)
Build an empty imaginary literal.
Definition: Expr.h:1526
clang::CallExpr::getCalleeDecl
Decl * getCalleeDecl()
Definition: Expr.h:2526
clang::MemberExpr::setBase
void setBase(Expr *E)
Definition: Expr.h:2766
clang::BinaryOperator::isComparisonOp
static bool isComparisonOp(Opcode Opc)
Definition: Expr.h:3377
clang::SourceRange::getBegin
SourceLocation getBegin() const
Definition: SourceLocation.h:207
clang::ConvertVectorExpr::getTypeSourceInfo
TypeSourceInfo * getTypeSourceInfo() const
getTypeSourceInfo - Return the destination type.
Definition: Expr.h:3941
clang::InitListExpr::children
const_child_range children() const
Definition: Expr.h:4374
ColonLoc
SourceLocation ColonLoc
Location of &#39;:&#39;.
Definition: OpenMPClause.h:108
clang::OffsetOfExpr::getRParenLoc
SourceLocation getRParenLoc() const
Return the location of the right parentheses.
Definition: Expr.h:2156
clang::ArrayInitLoopExpr::getArraySize
llvm::APInt getArraySize() const
Definition: Expr.h:4827
clang::ChooseExpr::isConditionTrue
bool isConditionTrue() const
isConditionTrue - Return whether the condition is true (i.e.
Definition: Expr.h:4005
clang::CastExpr::CastExpr
CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, const CastKind kind, Expr *op, unsigned BasePathSize)
Definition: Expr.h:3009
clang::SourceManager
This class handles loading and caching of source files into memory.
Definition: SourceManager.h:582
clang::InitListExpr::getSyntacticForm
InitListExpr * getSyntacticForm() const
Definition: Expr.h:4342
clang::ChooseExpr::children
child_range children()
Definition: Expr.h:4043
clang::ImplicitValueInitExpr
Represents an implicitly-generated value initialization of an object of a given type.
Definition: Expr.h:4893
clang::Expr::NullPointerConstantKind
NullPointerConstantKind
Enumeration used to describe the kind of Null pointer constant returned from isNullPointerConstant()...
Definition: Expr.h:686
clang::AtomicExpr::getWeak
Expr * getWeak() const
Definition: Expr.h:5491
clang::ImplicitValueInitExpr::children
child_range children()
Definition: Expr.h:4911
clang::Attr
Attr - This represents one attribute.
Definition: Attr.h:44
clang::Expr::Classification::CM_NoSetterProperty
Definition: Expr.h:326
clang::ShuffleVectorExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:3871
clang::NoInitExpr::children
child_range children()
Definition: Expr.h:4730
clang::TypeSourceInfo::getType
QualType getType() const
Return the type wrapped by this type source info.
Definition: Decl.h:98
clang::CallExpr::getDirectCallee
const FunctionDecl * getDirectCallee() const
Definition: Expr.h:2535
clang::MemberExpr::getOperatorLoc
SourceLocation getOperatorLoc() const
Definition: Expr.h:2872
clang::InitListExpr::getSemanticForm
InitListExpr * getSemanticForm() const
Definition: Expr.h:4336
clang::ParenExpr::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: Expr.h:1865
clang::Create
static OMPLinearClause * Create(const ASTContext &C, SourceLocation StartLoc, SourceLocation LParenLoc, OpenMPLinearClauseKind Modifier, SourceLocation ModifierLoc, SourceLocation ColonLoc, SourceLocation EndLoc, ArrayRef< Expr *> VL, ArrayRef< Expr *> PL, ArrayRef< Expr *> IL, Expr *Step, Expr *CalcStep, Stmt *PreInit, Expr *PostUpdate)
Creates clause with a list of variables VL and a linear step Step.
clang::ParenListExpr::classof
static bool classof(const Stmt *T)
Definition: Expr.h:4969
clang::ChooseExpr::setCond
void setCond(Expr *E)
Definition: Expr.h:4023
clang::ChooseExpr::setIsConditionTrue
void setIsConditionTrue(bool isTrue)
Definition: Expr.h:4010
clang::CharacterLiteral::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: Expr.h:1423
clang::BinaryOperator::isCompoundAssignmentOp
bool isCompoundAssignmentOp() const
Definition: Expr.h:3418
clang::UnaryOperator::getExprLoc
SourceLocation getExprLoc() const
Definition: Expr.h:1997
clang::DesignatedInitExpr::Designator::getSourceRange
SourceRange getSourceRange() const LLVM_READONLY
Definition: Expr.h:4604
EvaluateAsRValue
static bool EvaluateAsRValue(EvalInfo &Info, const Expr *E, APValue &Result)
EvaluateAsRValue - Try to evaluate this expression, performing an implicit lvalue-to-rvalue cast if i...
Definition: ExprConstant.cpp:10852
clang::CallExpr::const_arg_range
llvm::iterator_range< const_arg_iterator > const_arg_range
Definition: Expr.h:2583