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/* -*- 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_dom_ScriptTrace_h
#define mozilla_dom_ScriptTrace_h
#include "js/loader/ScriptLoadRequest.h"
#include "mozilla/AsyncEventDispatcher.h"
#include "mozilla/StaticPrefs_dom.h"
#include "mozilla/dom/ScriptLoadContext.h"
// This macro is used to wrap a tracing mechanism which is scheduling events
// which are then used by the JavaScript code of test cases to track the code
// path to verify the optimizations are working as expected.
#define TRACE_FOR_TEST(request, str) \
PR_BEGIN_MACRO \
nsresult rv = NS_OK; \
rv = mozilla::dom::script::TestingDispatchEvent( \
request, NS_LITERAL_STRING_FROM_CSTRING(str)); \
NS_ENSURE_SUCCESS(rv, rv); \
PR_END_MACRO
#define TRACE_FOR_TEST_BOOL(request, str) \
PR_BEGIN_MACRO \
nsresult rv = NS_OK; \
rv = mozilla::dom::script::TestingDispatchEvent( \
request, NS_LITERAL_STRING_FROM_CSTRING(str)); \
NS_ENSURE_SUCCESS(rv, false); \
PR_END_MACRO
#define TRACE_FOR_TEST_NONE(request, str) \
PR_BEGIN_MACRO \
mozilla::dom::script::TestingDispatchEvent( \
request, NS_LITERAL_STRING_FROM_CSTRING(str)); \
PR_END_MACRO
namespace mozilla::dom::script {
static nsresult TestingDispatchEvent(JS::loader::ScriptLoadRequest* aRequest,
const nsAString& aEventType) {
if (!StaticPrefs::dom_expose_test_interfaces()) {
return NS_OK;
}
nsIScriptElement* scriptElement =
aRequest->GetScriptLoadContext()->GetScriptElementForTrace();
nsCOMPtr<nsINode> target(do_QueryInterface(scriptElement));
if (!target) {
return NS_OK;
}
RefPtr<AsyncEventDispatcher> dispatcher = new AsyncEventDispatcher(
target, aEventType, CanBubble::eYes, ChromeOnlyDispatch::eNo);
return dispatcher->PostDOMEvent();
}
} // namespace mozilla::dom::script
#endif // mozilla_dom_ScriptTrace_h
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