/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef nsStaticAtom_h__ #define nsStaticAtom_h__ #include "nsIAtom.h" #include "nsStringBuffer.h" #define NS_STATIC_ATOM(buffer_name, atom_ptr) \ { (nsStringBuffer*) &buffer_name, atom_ptr } #define NS_STATIC_ATOM_BUFFER(buffer_name, str_data) \ static nsFakeStringBuffer<sizeof(str_data)> buffer_name = \ { 1, sizeof(str_data) * sizeof(char16_t), (u"" str_data) }; /** * Holds data used to initialize large number of atoms during startup. Use * the above macros to initialize these structs. They should never be accessed * directly other than from AtomTable.cpp */ struct nsStaticAtom { // mStringBuffer points to the string buffer for a permanent atom, and is // therefore safe as a non-owning reference. nsStringBuffer* MOZ_NON_OWNING_REF mStringBuffer; nsIAtom** mAtom; }; /** * This is a struct with the same binary layout as a nsStringBuffer. */ template<uint32_t size> struct nsFakeStringBuffer { int32_t mRefCnt; uint32_t mSize; char16_t mStringData[size]; }; // Register an array of static atoms with the atom table template<uint32_t N> void NS_RegisterStaticAtoms(const nsStaticAtom (&aAtoms)[N]) { extern void RegisterStaticAtoms(const nsStaticAtom*, uint32_t aAtomCount); RegisterStaticAtoms(aAtoms, N); } #endif