gecko-dev/xpcom/ds/nsGkAtoms.cpp

58 строки
2.1 KiB
C++

/* -*- 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/. */
#include "nsGkAtoms.h"
// Register an array of static atoms with the atom table.
void
NS_RegisterStaticAtoms(const nsStaticAtom* aAtoms, size_t aAtomsLen);
namespace mozilla {
namespace detail {
extern constexpr GkAtoms gGkAtoms = {
// The initialization of each atom's string.
#define GK_ATOM(name_, value_, hash_, type_, atom_type_) \
u"" value_,
#include "nsGkAtomList.h"
#undef GK_ATOM
{
// The initialization of the atoms themselves.
//
// Note that |value_| is an 8-bit string, and so |sizeof(value_)| is equal
// to the number of chars (including the terminating '\0'). The |u""| prefix
// converts |value_| to a 16-bit string.
#define GK_ATOM(name_, value_, hash_, type_, atom_type_) \
nsStaticAtom(u"" value_, \
sizeof(value_) - 1, \
hash_, \
offsetof(GkAtoms, \
mAtoms[static_cast<size_t>(GkAtoms::Atoms::name_)]) - \
offsetof(GkAtoms, name_##_string)),
#include "nsGkAtomList.h"
#undef GK_ATOM
}
};
} // namespace detail
} // namespace mozilla
const nsStaticAtom* const nsGkAtoms::sAtoms = mozilla::detail::gGkAtoms.mAtoms;
// Definition of the pointer to the static atom.
#define GK_ATOM(name_, value_, hash_, type_, atom_type_) \
type_* nsGkAtoms::name_ = const_cast<type_*>(static_cast<const type_*>( \
&mozilla::detail::gGkAtoms.mAtoms[ \
static_cast<size_t>(mozilla::detail::GkAtoms::Atoms::name_)]));
#include "nsGkAtomList.h"
#undef GK_ATOM
void nsGkAtoms::RegisterStaticAtoms()
{
NS_RegisterStaticAtoms(sAtoms, sAtomsLen);
}