Files
tubestation/xpcom/components/nsServiceManagerUtils.h
serge-sans-paille bf3516e81e Bug 1964489 - Avoid duplication in NS_DECLARE_STATIC_IID_ACCESSOR / NS_DEFINE_STATIC_IID_ACCESSOR r=nika,necko-reviewers,media-playback-reviewers,places-reviewers,win-reviewers,dom-storage-reviewers,xpcom-reviewers,gstoll,janv,emilio,padenot,valentin,asuth
In modern C++, static constexpr member variables are automatically
inline (aka weak) so the template trick is not needed. This also avoid
duplication and reduces the amount of parsed code. No impact on
generated binary (actually: smaller debuginfo, close to identical
binary).

Differential Revision: https://phabricator.services.mozilla.com/D247825
2025-05-08 08:05:51 +00:00

57 lines
2.0 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/. */
#ifndef nsServiceManagerUtils_h__
#define nsServiceManagerUtils_h__
#include "nsCOMPtr.h"
#include "nsString.h"
inline nsGetServiceByCID do_GetService(const nsCID& aCID) {
return nsGetServiceByCID(aCID);
}
inline nsGetServiceByCIDWithError do_GetService(const nsCID& aCID,
nsresult* aError) {
return nsGetServiceByCIDWithError(aCID, aError);
}
inline nsGetServiceByContractID do_GetService(const char* aContractID) {
return nsGetServiceByContractID(aContractID);
}
inline nsGetServiceByContractIDWithError do_GetService(const char* aContractID,
nsresult* aError) {
return nsGetServiceByContractIDWithError(aContractID, aError);
}
nsresult CallGetService(const nsCID& aClass, const nsIID& aIID, void** aResult);
nsresult CallGetService(const char* aContractID, const nsIID& aIID,
void** aResult);
// type-safe shortcuts for calling |GetService|
template <class DestinationType>
inline nsresult CallGetService(const nsCID& aClass,
DestinationType** aDestination) {
MOZ_ASSERT(aDestination, "null parameter");
return CallGetService(aClass, NS_GET_IID(DestinationType),
reinterpret_cast<void**>(aDestination));
}
template <class DestinationType>
inline nsresult CallGetService(const char* aContractID,
DestinationType** aDestination) {
MOZ_ASSERT(aContractID, "null parameter");
MOZ_ASSERT(aDestination, "null parameter");
return CallGetService(aContractID, NS_GET_IID(DestinationType),
reinterpret_cast<void**>(aDestination));
}
#endif