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f798172419
can't accidentally be allocated the wrong way (missing prefix data for decls from AST files, for instance) and simplifies the CreateDeserialized functions a little. An extra DeclContext* parameter to the not-from-AST-file operator new allows us to ensure that we don't accidentally call the wrong one when deserializing (when we don't have a DeclContext), allows some extra checks, and prepares for some planned modules-related changes to Decl allocation. No functionality change intended. llvm-svn: 195426
67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
//===--- DeclFriend.cpp - C++ Friend Declaration AST Node Implementation --===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the AST classes related to C++ friend
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// declarations.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/DeclFriend.h"
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#include "clang/AST/DeclTemplate.h"
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using namespace clang;
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void FriendDecl::anchor() { }
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FriendDecl *FriendDecl::getNextFriendSlowCase() {
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return cast_or_null<FriendDecl>(
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NextFriend.get(getASTContext().getExternalSource()));
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}
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FriendDecl *FriendDecl::Create(ASTContext &C, DeclContext *DC,
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SourceLocation L,
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FriendUnion Friend,
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SourceLocation FriendL,
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ArrayRef<TemplateParameterList*> FriendTypeTPLists) {
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#ifndef NDEBUG
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if (Friend.is<NamedDecl*>()) {
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NamedDecl *D = Friend.get<NamedDecl*>();
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assert(isa<FunctionDecl>(D) ||
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isa<CXXRecordDecl>(D) ||
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isa<FunctionTemplateDecl>(D) ||
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isa<ClassTemplateDecl>(D));
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// As a temporary hack, we permit template instantiation to point
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// to the original declaration when instantiating members.
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assert(D->getFriendObjectKind() ||
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(cast<CXXRecordDecl>(DC)->getTemplateSpecializationKind()));
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// These template parameters are for friend types only.
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assert(FriendTypeTPLists.size() == 0);
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}
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#endif
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std::size_t Extra = FriendTypeTPLists.size() * sizeof(TemplateParameterList*);
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FriendDecl *FD = new (C, DC, Extra) FriendDecl(DC, L, Friend, FriendL,
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FriendTypeTPLists);
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cast<CXXRecordDecl>(DC)->pushFriendDecl(FD);
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return FD;
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}
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FriendDecl *FriendDecl::CreateDeserialized(ASTContext &C, unsigned ID,
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unsigned FriendTypeNumTPLists) {
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std::size_t Extra = FriendTypeNumTPLists * sizeof(TemplateParameterList*);
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return new (C, ID, Extra) FriendDecl(EmptyShell(), FriendTypeNumTPLists);
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}
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FriendDecl *CXXRecordDecl::getFirstFriend() const {
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ExternalASTSource *Source = getParentASTContext().getExternalSource();
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Decl *First = data().FirstFriend.get(Source);
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return First ? cast<FriendDecl>(First) : 0;
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}
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