llvm-capstone/clang/lib/AST/DeclFriend.cpp
Argyrios Kyrtzidis 74d28bd084 Support C++ friend declarations for PCH.
This commit 'introduces' a slightly different way to restore the state of the AST object.
It makes PCHDeclReader/PCHDeclWriter friends and gives them access to the private members of the object.
The rationale is to avoid using/modifying the AST interfaces for PCH read/write so that to:

-Avoid complications with objects that have side-effects during creation or when using some setters.
-Not 'pollute' the AST interface with methods only used by the PCH reader/writer
-Allow AST objects to be read-only.

llvm-svn: 107219
2010-06-29 22:47:00 +00:00

46 lines
1.5 KiB
C++

//===--- DeclFriend.cpp - C++ Friend Declaration AST Node Implementation --===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the AST classes related to C++ friend
// declarations.
//
//===----------------------------------------------------------------------===//
#include "clang/AST/DeclFriend.h"
#include "clang/AST/DeclTemplate.h"
using namespace clang;
FriendDecl *FriendDecl::Create(ASTContext &C, DeclContext *DC,
SourceLocation L,
FriendUnion Friend,
SourceLocation FriendL) {
#ifndef NDEBUG
if (Friend.is<NamedDecl*>()) {
NamedDecl *D = Friend.get<NamedDecl*>();
assert(isa<FunctionDecl>(D) ||
isa<CXXRecordDecl>(D) ||
isa<FunctionTemplateDecl>(D) ||
isa<ClassTemplateDecl>(D));
// As a temporary hack, we permit template instantiation to point
// to the original declaration when instantiating members.
assert(D->getFriendObjectKind() ||
(cast<CXXRecordDecl>(DC)->getTemplateSpecializationKind()));
}
#endif
FriendDecl *FD = new (C) FriendDecl(DC, L, Friend, FriendL);
cast<CXXRecordDecl>(DC)->pushFriendDecl(FD);
return FD;
}
FriendDecl *FriendDecl::Create(ASTContext &C, EmptyShell Empty) {
return new (C) FriendDecl(Empty);
}