1 files changed, 76 insertions, 0 deletions
diff --git a/contrib/llvm-project/clang/lib/AST/DeclFriend.cpp b/contrib/llvm-project/clang/lib/AST/DeclFriend.cpp
new file mode 100644
index 000000000000..8ec1dea84df5
--- /dev/null
+++ b/contrib/llvm-project/clang/lib/AST/DeclFriend.cpp
@@ -0,0 +1,76 @@
+//===- DeclFriend.cpp - C++ Friend Declaration AST Node Implementation ----===//
+//
+// 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 implements the AST classes related to C++ friend
+// declarations.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/AST/DeclFriend.h"
+#include "clang/AST/Decl.h"
+#include "clang/AST/DeclBase.h"
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/DeclTemplate.h"
+#include "clang/Basic/LLVM.h"
+#include "llvm/Support/Casting.h"
+#include <cassert>
+#include <cstddef>
+
+using namespace clang;
+
+void FriendDecl::anchor() {}
+
+FriendDecl *FriendDecl::getNextFriendSlowCase() {
+  return cast_or_null<FriendDecl>(
+                           NextFriend.get(getASTContext().getExternalSource()));
+}
+
+FriendDecl *FriendDecl::Create(ASTContext &C, DeclContext *DC,
+                               SourceLocation L,
+                               FriendUnion Friend,
+                               SourceLocation FriendL,
+                          ArrayRef<TemplateParameterList *> FriendTypeTPLists) {
+#ifndef NDEBUG
+  if (Friend.is<NamedDecl *>()) {
+    const auto *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()));
+    // These template parameters are for friend types only.
+    assert(FriendTypeTPLists.empty());
+  }
+#endif
+
+  std::size_t Extra =
+      FriendDecl::additionalSizeToAlloc<TemplateParameterList *>(
+          FriendTypeTPLists.size());
+  auto *FD = new (C, DC, Extra) FriendDecl(DC, L, Friend, FriendL,
+                                           FriendTypeTPLists);
+  cast<CXXRecordDecl>(DC)->pushFriendDecl(FD);
+  return FD;
+}
+
+FriendDecl *FriendDecl::CreateDeserialized(ASTContext &C, unsigned ID,
+                                           unsigned FriendTypeNumTPLists) {
+  std::size_t Extra =
+      additionalSizeToAlloc<TemplateParameterList *>(FriendTypeNumTPLists);
+  return new (C, ID, Extra) FriendDecl(EmptyShell(), FriendTypeNumTPLists);
+}
+
+FriendDecl *CXXRecordDecl::getFirstFriend() const {
+  ExternalASTSource *Source = getParentASTContext().getExternalSource();
+  Decl *First = data().FirstFriend.get(Source);
+  return First ? cast<FriendDecl>(First) : nullptr;
+}