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https://github.com/roytam1/UXP.git
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FranklinDM
23519e0c22
There are a few minor differences between this and Mozilla's implementation: (a) The type error messages were not hardcoded to the Performance class and were moved to Errors.msg instead. (b) PerformanceMeasureOptions is used directly and doesn't use the the Maybe<> container class. I haven't found the reason yet, but PerformanceMeasureOptions is disallowed from having a copy constructor and without that, it isn't possible to use it with Maybe<>... There doesn't seem to be any problem with using it directly, though. (c) Resist fingerprinting-pref changes were skipped. Partially based on https://bugzilla.mozilla.org/show_bug.cgi?id=1762482
68 lines
2.5 KiB
C++
68 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "PerformanceMeasure.h"
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#include "MainThreadUtils.h"
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#include "mozilla/dom/PerformanceMeasureBinding.h"
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using namespace mozilla::dom;
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PerformanceMeasure::PerformanceMeasure(nsISupports* aParent,
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const nsAString& aName,
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DOMHighResTimeStamp aStartTime,
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DOMHighResTimeStamp aEndTime,
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const JS::Handle<JS::Value>& aDetail)
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: PerformanceEntry(aParent, aName, NS_LITERAL_STRING("measure"))
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, mStartTime(aStartTime)
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, mDuration(aEndTime - aStartTime)
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, mDetail(aDetail)
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{
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// mParent is null in workers.
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MOZ_ASSERT(mParent || !NS_IsMainThread());
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}
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PerformanceMeasure::~PerformanceMeasure()
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{
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mozilla::DropJSObjects(this);
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}
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NS_IMPL_CYCLE_COLLECTION_CLASS(PerformanceMeasure)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(PerformanceMeasure,
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PerformanceEntry)
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tmp->mDetail.setUndefined();
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mozilla::DropJSObjects(tmp);
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(PerformanceMeasure,
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PerformanceEntry)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(PerformanceMeasure,
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PerformanceEntry)
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NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mDetail)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(PerformanceMeasure)
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NS_INTERFACE_MAP_END_INHERITING(PerformanceEntry)
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NS_IMPL_ADDREF_INHERITED(PerformanceMeasure, PerformanceEntry)
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NS_IMPL_RELEASE_INHERITED(PerformanceMeasure, PerformanceEntry)
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JSObject*
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PerformanceMeasure::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto)
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{
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return PerformanceMeasureBinding::Wrap(aCx, this, aGivenProto);
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}
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void
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PerformanceMeasure::GetDetail(JSContext* aCx,
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JS::MutableHandle<JS::Value> aRv)
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{
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// Return a copy so that this method always returns the value it is set to
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// (i.e. it'll return the same value even if the caller assigns to it). Note
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// that if detail is an object, its contents can be mutated and this is
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// expected.
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aRv.set(mDetail);
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}
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