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Bug 1753709 - Add test case to verify delazification strategy is used. r=arai

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Differential Revision: https://phabricator.services.mozilla.com/D138541
This commit is contained in:
Nicolas B. Pierron
2022-02-21 17:26:03 +00:00
parent f12cf15dc9
commit 2e11d3e963
5 changed files with 276 additions and 0 deletions
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19
dom/script/ScriptLoader.cpp
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@@ -1494,6 +1494,8 @@ nsresult ScriptLoader::AttemptAsyncScriptCompile(ScriptLoadRequest* aRequest,
if (aRequest->IsTextSource()) {
if (!JS::CanCompileOffThread(cx, options, aRequest->ScriptTextLength())) {
TRACE_FOR_TEST(aRequest->GetScriptElement(),
"scriptloader_main_thread_compile");
return NS_OK;
}
} else {
@@ -1567,6 +1569,23 @@ nsresult ScriptLoader::AttemptAsyncScriptCompile(ScriptLoadRequest* aRequest,
nsresult rv = aRequest->GetScriptSource(cx, &maybeSource);
NS_ENSURE_SUCCESS(rv, rv);
if (StaticPrefs::dom_expose_test_interfaces()) {
switch (options.eagerDelazificationStrategy()) {
case JS::DelazificationOption::OnDemandOnly:
TRACE_FOR_TEST(aRequest->GetScriptElement(),
"delazification_on_demand_only");
break;
case JS::DelazificationOption::ConcurrentDepthFirst:
TRACE_FOR_TEST(aRequest->GetScriptElement(),
"delazification_concurrent_depth_first");
break;
case JS::DelazificationOption::ParseEverythingEagerly:
TRACE_FOR_TEST(aRequest->GetScriptElement(),
"delazification_parse_everything_eagerly");
break;
}
}
aRequest->GetLoadContext()->mOffThreadToken =
maybeSource.constructed<SourceText<char16_t>>()
? JS::CompileToStencilOffThread(