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fbe6dcf99f
This patch introduces a fake IDL interface just to get the benefits of cycle collection for the JS-to-C++ link we now need for PromiseNativeHandler (because the SpiderMonkey Promise somehow needs to point to the PromiseNativeHandler). Now in practice a bunch of our PromiseNativeHandlers are not cycle collected. That kinda freaks me out, but spot-checking a few suggests they do not in fact leak (either because they don't form cycles or because the Promise they're observing always settles and then releases them). Either way, that's a problem that exists with or without this patch...
45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_PromiseNativeHandler_h
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#define mozilla_dom_PromiseNativeHandler_h
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#include "nsISupports.h"
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#include "js/TypeDecls.h"
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namespace mozilla {
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namespace dom {
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/*
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* PromiseNativeHandler allows C++ to react to a Promise being rejected/resolved.
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* A PromiseNativeHandler can be appended to a Promise using
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* Promise::AppendNativeHandler().
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*/
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class PromiseNativeHandler : public nsISupports
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{
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protected:
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virtual ~PromiseNativeHandler()
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{ }
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public:
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virtual void
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ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) = 0;
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virtual void
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RejectedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) = 0;
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#ifdef SPIDERMONKEY_PROMISE
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bool WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto,
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JS::MutableHandle<JSObject*> aWrapper);
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#endif // SPIDERMONKEY_PROMISE
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_PromiseNativeHandler_h
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