1//===--- DeclFriend.cpp - C++ Friend Declaration AST Node Implementation --===//
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 implements the AST classes related to C++ friend
11// declarations.
12//
13//===----------------------------------------------------------------------===//
14
15#include "clang/AST/ASTContext.h"
16#include "clang/AST/DeclFriend.h"
17#include "clang/AST/DeclTemplate.h"
18using namespace clang;
19
20void FriendDecl::anchor() { }
21
22FriendDecl *FriendDecl::getNextFriendSlowCase() {
23  return cast_or_null<FriendDecl>(
24                           NextFriend.get(getASTContext().getExternalSource()));
25}
26
27FriendDecl *FriendDecl::Create(ASTContext &C, DeclContext *DC,
28                               SourceLocation L,
29                               FriendUnion Friend,
30                               SourceLocation FriendL) {
31#ifndef NDEBUG
32  if (Friend.is<NamedDecl*>()) {
33    NamedDecl *D = Friend.get<NamedDecl*>();
34    assert(isa<FunctionDecl>(D) ||
35           isa<CXXRecordDecl>(D) ||
36           isa<FunctionTemplateDecl>(D) ||
37           isa<ClassTemplateDecl>(D));
38
39    // As a temporary hack, we permit template instantiation to point
40    // to the original declaration when instantiating members.
41    assert(D->getFriendObjectKind() ||
42           (cast<CXXRecordDecl>(DC)->getTemplateSpecializationKind()));
43  }
44#endif
45
46  FriendDecl *FD = new (C) FriendDecl(DC, L, Friend, FriendL);
47  cast<CXXRecordDecl>(DC)->pushFriendDecl(FD);
48  return FD;
49}
50
51FriendDecl *FriendDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
52  void *Mem = AllocateDeserializedDecl(C, ID, sizeof(FriendDecl));
53  return new (Mem) FriendDecl(EmptyShell());
54}
55