1//===- DeclGroup.cpp - Classes for representing groups of Decls -----------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file defines the DeclGroup and DeclGroupRef classes.
10//
11//===----------------------------------------------------------------------===//
12
13#include "clang/AST/DeclGroup.h"
14#include "clang/AST/ASTContext.h"
15#include <cassert>
16#include <memory>
17
18using namespace clang;
19
20DeclGroup* DeclGroup::Create(ASTContext &C, Decl **Decls, unsigned NumDecls) {
21 assert(NumDecls > 1 && "Invalid DeclGroup");
22 unsigned Size = totalSizeToAlloc<Decl *>(Counts: NumDecls);
23 void *Mem = C.Allocate(Size, Align: alignof(DeclGroup));
24 new (Mem) DeclGroup(NumDecls, Decls);
25 return static_cast<DeclGroup*>(Mem);
26}
27
28DeclGroup::DeclGroup(unsigned numdecls, Decl** decls) : NumDecls(numdecls) {
29 assert(numdecls > 0);
30 assert(decls);
31 std::uninitialized_copy(first: decls, last: decls + numdecls, result: getTrailingObjects());
32}
33