зеркало из https://github.com/mozilla/gecko-dev.git
97 строки
3.3 KiB
C++
97 строки
3.3 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/. */
|
|
|
|
#ifndef mozilla_JavascriptTimelineMarker_h_
|
|
#define mozilla_JavascriptTimelineMarker_h_
|
|
|
|
#include "TimelineMarker.h"
|
|
|
|
#include "mozilla/Maybe.h"
|
|
|
|
#include "mozilla/dom/ProfileTimelineMarkerBinding.h"
|
|
#include "mozilla/dom/RootedDictionary.h"
|
|
#include "mozilla/dom/ToJSValue.h"
|
|
|
|
namespace mozilla {
|
|
|
|
class JavascriptTimelineMarker : public TimelineMarker {
|
|
public:
|
|
// The caller owns |aAsyncCause| here, so we must copy it into a separate
|
|
// string for use later on.
|
|
JavascriptTimelineMarker(const char* aReason, const nsAString& aFunctionName,
|
|
const nsAString& aFileName, uint32_t aLineNumber,
|
|
MarkerTracingType aTracingType,
|
|
JS::Handle<JS::Value> aAsyncStack,
|
|
const char* aAsyncCause)
|
|
: TimelineMarker("Javascript", aTracingType,
|
|
MarkerStackRequest::NO_STACK),
|
|
mCause(NS_ConvertUTF8toUTF16(aReason)),
|
|
mFunctionName(aFunctionName),
|
|
mFileName(aFileName),
|
|
mLineNumber(aLineNumber),
|
|
mAsyncCause(aAsyncCause) {
|
|
JSContext* ctx = nsContentUtils::GetCurrentJSContext();
|
|
if (ctx) {
|
|
mAsyncStack.init(ctx, aAsyncStack);
|
|
}
|
|
}
|
|
|
|
virtual void AddDetails(JSContext* aCx,
|
|
dom::ProfileTimelineMarker& aMarker) override {
|
|
TimelineMarker::AddDetails(aCx, aMarker);
|
|
|
|
aMarker.mCauseName.Construct(mCause);
|
|
|
|
if (!mFunctionName.IsEmpty() || !mFileName.IsEmpty()) {
|
|
dom::RootedDictionary<dom::ProfileTimelineStackFrame> stackFrame(aCx);
|
|
stackFrame.mLine.Construct(mLineNumber);
|
|
stackFrame.mSource.Construct(mFileName);
|
|
stackFrame.mFunctionDisplayName.Construct(mFunctionName);
|
|
|
|
if (mAsyncStack.isObject() && !mAsyncCause.IsEmpty()) {
|
|
JS::Rooted<JSObject*> asyncStack(aCx, &mAsyncStack.toObject());
|
|
JS::Rooted<JSObject*> parentFrame(aCx);
|
|
JS::Rooted<JSString*> asyncCause(
|
|
aCx, JS_NewUCStringCopyN(aCx, mAsyncCause.BeginReading(),
|
|
mAsyncCause.Length()));
|
|
if (!asyncCause) {
|
|
JS_ClearPendingException(aCx);
|
|
return;
|
|
}
|
|
|
|
if (JS::IsMaybeWrappedSavedFrame(asyncStack) &&
|
|
!JS::CopyAsyncStack(aCx, asyncStack, asyncCause, &parentFrame,
|
|
mozilla::Nothing())) {
|
|
JS_ClearPendingException(aCx);
|
|
} else {
|
|
stackFrame.mAsyncParent = parentFrame;
|
|
}
|
|
}
|
|
|
|
JS::Rooted<JS::Value> newStack(aCx);
|
|
if (ToJSValue(aCx, stackFrame, &newStack)) {
|
|
if (newStack.isObject()) {
|
|
aMarker.mStack = &newStack.toObject();
|
|
}
|
|
} else {
|
|
JS_ClearPendingException(aCx);
|
|
}
|
|
}
|
|
}
|
|
|
|
private:
|
|
nsString mCause;
|
|
nsString mFunctionName;
|
|
nsString mFileName;
|
|
uint32_t mLineNumber;
|
|
JS::PersistentRooted<JS::Value> mAsyncStack;
|
|
NS_ConvertUTF8toUTF16 mAsyncCause;
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_JavascriptTimelineMarker_h_
|