1 files changed, 37 insertions, 0 deletions
diff --git a/lib/AST/DeclGroup.cpp b/lib/AST/DeclGroup.cpp
new file mode 100644
index 0000000..5bdc881
--- /dev/null
+++ b/lib/AST/DeclGroup.cpp
@@ -0,0 +1,37 @@
+//===--- DeclGroup.cpp - Classes for representing groups of Decls -*- C++ -*-==//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file defines the DeclGroup and DeclGroupRef classes.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/AST/DeclGroup.h"
+#include "clang/AST/Decl.h"
+#include "clang/AST/ASTContext.h"
+#include "llvm/Support/Allocator.h"
+using namespace clang;
+
+DeclGroup* DeclGroup::Create(ASTContext &C, Decl **Decls, unsigned NumDecls) {
+  assert(NumDecls > 1 && "Invalid DeclGroup");
+  unsigned Size = sizeof(DeclGroup) + sizeof(Decl*) * NumDecls;
+  void* Mem = C.Allocate(Size, llvm::AlignOf<DeclGroup>::Alignment);
+  new (Mem) DeclGroup(NumDecls, Decls);
+  return static_cast<DeclGroup*>(Mem);
+}
+
+DeclGroup::DeclGroup(unsigned numdecls, Decl** decls) : NumDecls(numdecls) {
+  assert(numdecls > 0);
+  assert(decls);
+  memcpy(this+1, decls, numdecls * sizeof(*decls));
+}
+
+void DeclGroup::Destroy(ASTContext& C) {
+  this->~DeclGroup();
+  C.Deallocate((void*) this);
+}