gecko-dev/toolkit/components/places/nsPlacesMacros.h

62 строки
3.9 KiB
C

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "nsIConsoleService.h"
#include "nsIScriptError.h"
#ifndef __FUNCTION__
#define __FUNCTION__ __func__
#endif
// Call a method on each observer in a category cache, then call the same
// method on the observer array.
#define NOTIFY_OBSERVERS(canFire, cache, array, type, method) \
PR_BEGIN_MACRO \
if (canFire) { \
nsCOMArray<type> entries; \
cache.GetEntries(entries); \
for (int32_t idx = 0; idx < entries.Count(); ++idx) \
entries[idx]->method; \
ENUMERATE_WEAKARRAY(array, type, method) \
} \
PR_END_MACRO;
#define PLACES_FACTORY_SINGLETON_IMPLEMENTATION(_className, _sInstance) \
_className * _className::_sInstance = nullptr; \
\
already_AddRefed<_className> \
_className::GetSingleton() \
{ \
if (_sInstance) { \
nsRefPtr<_className> ret = _sInstance; \
return ret.forget(); \
} \
_sInstance = new _className(); \
nsRefPtr<_className> ret = _sInstance; \
if (NS_FAILED(_sInstance->Init())) { \
/* Null out ret before _sInstance so the destructor doesn't assert */ \
ret = nullptr; \
_sInstance = nullptr; \
return nullptr; \
} \
return ret.forget(); \
}
#define PLACES_WARN_DEPRECATED() \
PR_BEGIN_MACRO \
nsCString msg(__FUNCTION__); \
msg.AppendLiteral(" is deprecated and will be removed in the next version.");\
NS_WARNING(msg.get()); \
nsCOMPtr<nsIConsoleService> cs = do_GetService(NS_CONSOLESERVICE_CONTRACTID);\
if (cs) { \
nsCOMPtr<nsIScriptError> e = do_CreateInstance(NS_SCRIPTERROR_CONTRACTID); \
if (e && NS_SUCCEEDED(e->Init(NS_ConvertUTF8toUTF16(msg), EmptyString(), \
EmptyString(), 0, 0, \
nsIScriptError::errorFlag, "Places"))) { \
cs->LogMessage(e); \
} \
} \
PR_END_MACRO