gecko-dev/dom/promise/PromiseNativeHandler.cpp
Jean-Yves Avenard dfb2061bb1 Bug 1634264 - Reject MozPromise when DomPromiseListener is deleted. r=mattwoodrow
We remove the assertion that the error code was NS_OK, as users of FromDomPromise assert it must be a failure.

Differential Revision: https://phabricator.services.mozilla.com/D75737
2020-05-18 22:16:38 +00:00

67 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/. */
#include "PromiseNativeHandler.h"
#include "mozilla/dom/Promise.h"
#include "nsISupportsImpl.h"
namespace mozilla {
namespace dom {
NS_IMPL_ISUPPORTS0(DomPromiseListener)
DomPromiseListener::DomPromiseListener(dom::Promise* aDOMPromise) {
aDOMPromise->AppendNativeHandler(this);
}
DomPromiseListener::DomPromiseListener(dom::Promise* aDOMPromise,
CallbackTypeResolved&& aResolve,
CallbackTypeRejected&& aReject)
: mResolve(Some(std::move(aResolve))), mReject(Some(std::move(aReject))) {
aDOMPromise->AppendNativeHandler(this);
}
DomPromiseListener::~DomPromiseListener() {
if (mReject) {
(*mReject)(NS_BINDING_ABORTED);
}
}
void DomPromiseListener::ResolvedCallback(JSContext* aCx,
JS::Handle<JS::Value> aValue) {
if (mResolve) {
(*mResolve)(aCx, aValue);
}
// Let's clear the lambdas in case we have a cycle to ourselves.
mResolve.reset();
mReject.reset();
}
void DomPromiseListener::RejectedCallback(JSContext* aCx,
JS::Handle<JS::Value> aValue) {
if (mReject) {
nsresult errorCode;
if (!aValue.isInt32()) {
errorCode = NS_ERROR_DOM_NOT_NUMBER_ERR;
} else {
errorCode = nsresult(aValue.toInt32());
}
(*mReject)(errorCode);
}
// Let's clear the lambdas in case we have a cycle to ourselves.
mResolve.reset();
mReject.reset();
}
void DomPromiseListener::SetResolvers(CallbackTypeResolved&& aResolve,
CallbackTypeRejected&& aReject) {
mResolve = Some(std::move(aResolve));
mReject = Some(std::move(aReject));
}
} // namespace dom
} // namespace mozilla