1 //===--- LocInfoType.h - Parsed Type with Location Information---*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file defines the LocInfoType class, which holds a type and its
10 // source-location information.
11 //
12 //===----------------------------------------------------------------------===//
13 #ifndef LLVM_CLANG_SEMA_LOCINFOTYPE_H
14 #define LLVM_CLANG_SEMA_LOCINFOTYPE_H
15 
16 #include "clang/AST/Type.h"
17 
18 namespace clang {
19 
20 class TypeSourceInfo;
21 
22 /// Holds a QualType and a TypeSourceInfo* that came out of a declarator
23 /// parsing.
24 ///
25 /// LocInfoType is a "transient" type, only needed for passing to/from Parser
26 /// and Sema, when we want to preserve type source info for a parsed type.
27 /// It will not participate in the type system semantics in any way.
28 class LocInfoType : public Type {
29   enum {
30     // The last number that can fit in Type's TC.
31     // Avoids conflict with an existing Type class.
32     LocInfo = Type::TypeLast + 1
33   };
34 
35   TypeSourceInfo *DeclInfo;
36 
LocInfoType(QualType ty,TypeSourceInfo * TInfo)37   LocInfoType(QualType ty, TypeSourceInfo *TInfo)
38       : Type((TypeClass)LocInfo, ty, ty->getDependence()), DeclInfo(TInfo) {
39     assert(getTypeClass() == (TypeClass)LocInfo && "LocInfo didn't fit in TC?");
40   }
41   friend class Sema;
42 
43 public:
getType()44   QualType getType() const { return getCanonicalTypeInternal(); }
getTypeSourceInfo()45   TypeSourceInfo *getTypeSourceInfo() const { return DeclInfo; }
46 
47   void getAsStringInternal(std::string &Str,
48                            const PrintingPolicy &Policy) const;
49 
classof(const Type * T)50   static bool classof(const Type *T) {
51     return T->getTypeClass() == (TypeClass)LocInfo;
52   }
53 };
54 
55 } // end namespace clang
56 
57 #endif // LLVM_CLANG_SEMA_LOCINFOTYPE_H
58