llvm/clang/include/clang/AST/DeclFriend.h

//===- DeclFriend.h - Classes for C++ friend declarations -------*- 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 section of the AST representing C++ friend
// declarations.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_AST_DECLFRIEND_H
#define LLVM_CLANG_AST_DECLFRIEND_H

#include "clang/AST/Decl.h"
#include "clang/AST/DeclBase.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/ExternalASTSource.h"
#include "clang/AST/TypeLoc.h"
#include "clang/Basic/LLVM.h"
#include "clang/Basic/SourceLocation.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/PointerUnion.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/TrailingObjects.h"
#include <cassert>
#include <iterator>

namespace clang {

class ASTContext;

/// FriendDecl - Represents the declaration of a friend entity,
/// which can be a function, a type, or a templated function or type.
/// For example:
///
/// @code
/// template <typename T> class A {
///   friend int foo(T);
///   friend class B;
///   friend T; // only in C++0x
///   template <typename U> friend class C;
///   template <typename U> friend A& operator+=(A&, const U&) { ... }
/// };
/// @endcode
///
/// The semantic context of a friend decl is its declaring class.
class FriendDecl final
    : public Decl,
      private llvm::TrailingObjects<FriendDecl, TemplateParameterList *> { … };

/// An iterator over the friend declarations of a class.
class CXXRecordDecl::friend_iterator { … };

inline CXXRecordDecl::friend_iterator CXXRecordDecl::friend_begin() const { … }

inline CXXRecordDecl::friend_iterator CXXRecordDecl::friend_end() const { … }

inline CXXRecordDecl::friend_range CXXRecordDecl::friends() const { … }

inline void CXXRecordDecl::pushFriendDecl(FriendDecl *FD) { … }

} // namespace clang

#endif // LLVM_CLANG_AST_DECLFRIEND_H