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 18 using namespace clang; 19 20 DeclGroup* DeclGroup::Create(ASTContext &C, Decl **Decls, unsigned NumDecls) { 21 assert(NumDecls > 1 && "Invalid DeclGroup"); 22 unsigned Size = totalSizeToAlloc<Decl *>(NumDecls); 23 void *Mem = C.Allocate(Size, alignof(DeclGroup)); 24 new (Mem) DeclGroup(NumDecls, Decls); 25 return static_cast<DeclGroup*>(Mem); 26 } 27 28 DeclGroup::DeclGroup(unsigned numdecls, Decl** decls) : NumDecls(numdecls) { 29 assert(numdecls > 0); 30 assert(decls); 31 std::uninitialized_copy(decls, decls + numdecls, 32 getTrailingObjects<Decl *>()); 33 } 34