//===- DeclOccurrence.h - An occurrence of a decl within a file -*- 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

//

//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_INDEX_DECLOCCURRENCE_H

#define LLVM_CLANG_INDEX_DECLOCCURRENCE_H

#include "clang/AST/DeclBase.h"

#include "clang/Basic/LLVM.h"

#include "clang/Index/IndexSymbol.h"

#include "clang/Lex/MacroInfo.h"

#include "llvm/ADT/ArrayRef.h"

#include "llvm/ADT/PointerUnion.h"

#include "llvm/ADT/SmallVector.h"

namespace clang {

namespace index {

struct DeclOccurrence {

  SymbolRoleSet Roles;

  unsigned Offset;

  llvm::PointerUnion<const Decl *, const MacroInfo *> DeclOrMacro;

  const IdentifierInfo *MacroName = nullptr;

  SmallVector<SymbolRelation, 3> Relations;

  DeclOccurrence(SymbolRoleSet R, unsigned Offset, const Decl *D,

                 ArrayRef<SymbolRelation> Relations)

      : Roles(R), Offset(Offset), DeclOrMacro(D),

        Relations(Relations.begin(), Relations.end()) {}

  DeclOccurrence(SymbolRoleSet R, unsigned Offset, const IdentifierInfo *Name,

                 const MacroInfo *MI)

      : Roles(R), Offset(Offset), DeclOrMacro(MI), MacroName(Name) {}

  friend bool operator<(const DeclOccurrence &LHS, const DeclOccurrence &RHS) {

    return LHS.Offset < RHS.Offset;

  }

};

} // namespace index

} // namespace clang

#endif // LLVM_CLANG_INDEX_DECLOCCURRENCE_H