1 //===--- LocInfoType.h - Parsed Type with Location Information---*- 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 LocInfoType class, which holds a type and its
11 // source-location information.
12 //
13 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_CLANG_SEMA_LOCINFOTYPE_H
15 #define LLVM_CLANG_SEMA_LOCINFOTYPE_H
16 
17 #include "clang/AST/Type.h"
18 
19 namespace clang {
20 
21 class TypeSourceInfo;
22 
23 /// \brief Holds a QualType and a TypeSourceInfo* that came out of a declarator
24 /// parsing.
25 ///
26 /// LocInfoType is a "transient" type, only needed for passing to/from Parser
27 /// and Sema, when we want to preserve type source info for a parsed type.
28 /// It will not participate in the type system semantics in any way.
29 class LocInfoType : public Type {
30   enum {
31     // The last number that can fit in Type's TC.
32     // Avoids conflict with an existing Type class.
33     LocInfo = Type::TypeLast + 1
34   };
35 
36   TypeSourceInfo *DeclInfo;
37 
LocInfoType(QualType ty,TypeSourceInfo * TInfo)38   LocInfoType(QualType ty, TypeSourceInfo *TInfo)
39     : Type((TypeClass)LocInfo, ty, ty->isDependentType(),
40            ty->isInstantiationDependentType(),
41            ty->isVariablyModifiedType(),
42            ty->containsUnexpandedParameterPack()),
43       DeclInfo(TInfo) {
44     assert(getTypeClass() == (TypeClass)LocInfo && "LocInfo didn't fit in TC?");
45   }
46   friend class Sema;
47 
48 public:
getType()49   QualType getType() const { return getCanonicalTypeInternal(); }
getTypeSourceInfo()50   TypeSourceInfo *getTypeSourceInfo() const { return DeclInfo; }
51 
52   void getAsStringInternal(std::string &Str,
53                            const PrintingPolicy &Policy) const;
54 
classof(const Type * T)55   static bool classof(const Type *T) {
56     return T->getTypeClass() == (TypeClass)LocInfo;
57   }
58 };
59 
60 } // end namespace clang
61 
62 #endif // LLVM_CLANG_SEMA_LOCINFOTYPE_H
63