gecko-dev/xpcom/base/nsCOMPtr.cpp

119 строки
3.5 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 "nsCOMPtr.h"
nsresult nsQueryInterfaceISupports::operator()(const nsIID& aIID,
void** aAnswer) const {
nsresult status;
if (mRawPtr) {
status = mRawPtr->QueryInterface(aIID, aAnswer);
} else {
status = NS_ERROR_NULL_POINTER;
}
return status;
}
nsresult nsQueryInterfaceISupportsWithError::operator()(const nsIID& aIID,
void** aAnswer) const {
nsresult status;
if (mRawPtr) {
status = mRawPtr->QueryInterface(aIID, aAnswer);
} else {
status = NS_ERROR_NULL_POINTER;
}
if (mErrorPtr) {
*mErrorPtr = status;
}
return status;
}
void nsCOMPtr_base::assign_with_AddRef(nsISupports* aRawPtr) {
if (aRawPtr) {
NSCAP_ADDREF(this, aRawPtr);
}
assign_assuming_AddRef(aRawPtr);
}
void nsCOMPtr_base::assign_from_qi(const nsQueryInterfaceISupports aQI,
const nsIID& aIID) {
void* newRawPtr;
if (NS_FAILED(aQI(aIID, &newRawPtr))) {
newRawPtr = nullptr;
}
assign_assuming_AddRef(static_cast<nsISupports*>(newRawPtr));
}
void nsCOMPtr_base::assign_from_qi_with_error(
const nsQueryInterfaceISupportsWithError& aQI, const nsIID& aIID) {
void* newRawPtr;
if (NS_FAILED(aQI(aIID, &newRawPtr))) {
newRawPtr = nullptr;
}
assign_assuming_AddRef(static_cast<nsISupports*>(newRawPtr));
}
void nsCOMPtr_base::assign_from_gs_cid(const nsGetServiceByCID aGS,
const nsIID& aIID) {
void* newRawPtr;
if (NS_FAILED(aGS(aIID, &newRawPtr))) {
newRawPtr = nullptr;
}
assign_assuming_AddRef(static_cast<nsISupports*>(newRawPtr));
}
void nsCOMPtr_base::assign_from_gs_cid_with_error(
const nsGetServiceByCIDWithError& aGS, const nsIID& aIID) {
void* newRawPtr;
if (NS_FAILED(aGS(aIID, &newRawPtr))) {
newRawPtr = nullptr;
}
assign_assuming_AddRef(static_cast<nsISupports*>(newRawPtr));
}
void nsCOMPtr_base::assign_from_gs_contractid(
const nsGetServiceByContractID aGS, const nsIID& aIID) {
void* newRawPtr;
if (NS_FAILED(aGS(aIID, &newRawPtr))) {
newRawPtr = nullptr;
}
assign_assuming_AddRef(static_cast<nsISupports*>(newRawPtr));
}
void nsCOMPtr_base::assign_from_gs_contractid_with_error(
const nsGetServiceByContractIDWithError& aGS, const nsIID& aIID) {
void* newRawPtr;
if (NS_FAILED(aGS(aIID, &newRawPtr))) {
newRawPtr = nullptr;
}
assign_assuming_AddRef(static_cast<nsISupports*>(newRawPtr));
}
void nsCOMPtr_base::assign_from_query_referent(
const nsQueryReferent& aQueryReferent, const nsIID& aIID) {
void* newRawPtr;
if (NS_FAILED(aQueryReferent(aIID, &newRawPtr))) {
newRawPtr = nullptr;
}
assign_assuming_AddRef(static_cast<nsISupports*>(newRawPtr));
}
void nsCOMPtr_base::assign_from_helper(const nsCOMPtr_helper& aHelper,
const nsIID& aIID) {
void* newRawPtr;
if (NS_FAILED(aHelper(aIID, &newRawPtr))) {
newRawPtr = nullptr;
}
assign_assuming_AddRef(static_cast<nsISupports*>(newRawPtr));
}
void** nsCOMPtr_base::begin_assignment() {
assign_assuming_AddRef(nullptr);
return reinterpret_cast<void**>(&mRawPtr);
}