gecko-dev/xpcom/base/nsCOMPtr.cpp
Emilio Cobos Álvarez c2f5a4ac7a Bug 1835119 - Remove nsCOMPtr_base. r=xpcom-reviewers,kmag
It's not clear to me why specializing nsCOMPtr<nsISupports> is
particularly useful, and this removes a lot of code, bringing us closer
to unifying nsCOMPtr and RefPtr.

The changes in other places are needed because we used to allow
nsCOMPtr<nsISupports> to implicitly coerce to nsISupports even for
rvalue references.

     0:47.88 /home/emilio/src/moz/gecko-4/netwerk/protocol/http/nsHttpActivityDistributor.cpp:121:11: error: conversion function from 'nsCOMPtr<nsISupports>' to 'nsISupports *' invokes a deleted function
     0:47.88           nsCOMPtr<nsISupports>(do_QueryObject(channel)), aActivityType,
     0:47.88           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     0:47.88 /home/emilio/src/moz/gecko-4/obj-debug/dist/include/nsCOMPtr.h:764:3: note: 'operator nsISupports *' has been explicitly marked deleted here
     0:47.88   operator T*() const&& = delete;
     0:47.88   ^
     0:47.88 /home/emilio/src/moz/gecko-4/netwerk/protocol/http/nsHttpActivityDistributor.cpp:29:57: note: passing argument to parameter 'aHttpChannel' here
     0:47.88 nsHttpActivityDistributor::ObserveActivity(nsISupports* aHttpChannel,
     0:47.88                                                         ^

Which is not allowed for a good reason, generally.

Differential Revision: https://phabricator.services.mozilla.com/D179124
2023-05-31 21:58:43 +00:00

35 lines
1011 B
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;
}