1193326Sed//===--- DeclGroup.cpp - Classes for representing groups of Decls -*- C++ -*-==//
2193326Sed//
3193326Sed//                     The LLVM Compiler Infrastructure
4193326Sed//
5193326Sed// This file is distributed under the University of Illinois Open Source
6193326Sed// License. See LICENSE.TXT for details.
7193326Sed//
8193326Sed//===----------------------------------------------------------------------===//
9193326Sed//
10193326Sed//  This file defines the DeclGroup and DeclGroupRef classes.
11193326Sed//
12193326Sed//===----------------------------------------------------------------------===//
13193326Sed
14193326Sed#include "clang/AST/DeclGroup.h"
15252723Sdim#include "clang/AST/ASTContext.h"
16193326Sed#include "clang/AST/Decl.h"
17193326Sed#include "llvm/Support/Allocator.h"
18193326Sedusing namespace clang;
19193326Sed
20193326SedDeclGroup* DeclGroup::Create(ASTContext &C, Decl **Decls, unsigned NumDecls) {
21193326Sed  assert(NumDecls > 1 && "Invalid DeclGroup");
22193326Sed  unsigned Size = sizeof(DeclGroup) + sizeof(Decl*) * NumDecls;
23193326Sed  void* Mem = C.Allocate(Size, llvm::AlignOf<DeclGroup>::Alignment);
24193326Sed  new (Mem) DeclGroup(NumDecls, Decls);
25193326Sed  return static_cast<DeclGroup*>(Mem);
26193326Sed}
27193326Sed
28193326SedDeclGroup::DeclGroup(unsigned numdecls, Decl** decls) : NumDecls(numdecls) {
29193326Sed  assert(numdecls > 0);
30193326Sed  assert(decls);
31193326Sed  memcpy(this+1, decls, numdecls * sizeof(*decls));
32193326Sed}
33