LocInfoType.h

Go to the documentation of this file.

//===--- LocInfoType.h - Parsed Type with Location Information---*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines the LocInfoType class, which holds a type and its
// source-location information.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_AST_LOCINFOTYPE_H
#define LLVM_CLANG_AST_LOCINFOTYPE_H
 
#include "clang/AST/Type.h"
 
namespace clang {
 
class TypeSourceInfo;
 
/// Holds a QualType and a TypeSourceInfo* that came out of a declarator
/// parsing.
///
/// LocInfoType is a "transient" type, only needed for passing to/from Parser
/// and Sema, when we want to preserve type source info for a parsed type.
/// It will not participate in the type system semantics in any way.
class LocInfoType : public Type {
  enum {
    // The last number that can fit in Type's TC.
    // Avoids conflict with an existing Type class.
    LocInfo = Type::TypeLast + 1
  };
 
  TypeSourceInfo *DeclInfo;
 
  LocInfoType(QualType ty, TypeSourceInfo *TInfo)
      : Type((TypeClass)LocInfo, ty, ty->getDependence()), DeclInfo(TInfo) {
    assert(getTypeClass() == (TypeClass)LocInfo && "LocInfo didn't fit in TC?");
  }
  friend class Sema;
 
public:
  QualType getType() const { return getCanonicalTypeInternal(); }
  TypeSourceInfo *getTypeSourceInfo() const { return DeclInfo; }
 
  void getAsStringInternal(std::string &Str,
                           const PrintingPolicy &Policy) const;
 
  static bool classof(const Type *T) {
    return T->getTypeClass() == (TypeClass)LocInfo;
  }
};
 
} // end namespace clang
 
#endif // LLVM_CLANG_AST_LOCINFOTYPE_H