| 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 *>(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 | |
| 28 | DeclGroup::DeclGroup(unsigned numdecls, Decl** decls) : NumDecls(numdecls) { |
| 29 | assert(numdecls > 0); |
| 30 | assert(decls); |
| 31 | std::uninitialized_copy(first: decls, last: decls + numdecls, |
| 32 | result: getTrailingObjects<Decl *>()); |
| 33 | } |
| 34 |