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Code Issues Projects Releases Packages Wiki Activity Actions 11

LibWeb: Implement clean_up_after_running_script on a Realm

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Taking further steps towards implementing the shadow realm spec :^)
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Shannon Booth 2024-10-21 16:18:25 +13:00 • committed by Andrew Kaster
parent 0628b74272
commit d6fdaf6b26
Notes: github-actions[bot] 2024-11-01 19:16:25 +00:00
10 changed files with 35 additions and 31 deletions
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14
Userland/Libraries/LibWeb/HTML/Scripting/Environments.cpp
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@ -2,6 +2,7 @@
* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
* Copyright (c) 2022, networkException <networkexception@serenityos.org>
* Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -140,19 +141,20 @@ JS::ExecutionContext const& execution_context_of_realm(JS::Realm const& realm)
}
// https://html.spec.whatwg.org/multipage/webappapis.html#clean-up-after-running-script
void EnvironmentSettingsObject::clean_up_after_running_script()
// https://whatpr.org/html/9893/webappapis.html#clean-up-after-running-script
void clean_up_after_running_script(JS::Realm const& realm)
{
auto& vm = global_object().vm();
auto& vm = realm.global_object().vm();
// 1. Assert: settings's realm execution context is the running JavaScript execution context.
VERIFY(&realm_execution_context() == &vm.running_execution_context());
// 1. Assert: realm's execution context is the running JavaScript execution context.
VERIFY(&execution_context_of_realm(realm) == &vm.running_execution_context());
// 2. Remove settings's realm execution context from the JavaScript execution context stack.
// 2. Remove realm's execution context from the JavaScript execution context stack.
vm.pop_execution_context();
// 3. If the JavaScript execution context stack is now empty, perform a microtask checkpoint. (If this runs scripts, these algorithms will be invoked reentrantly.)
if (vm.execution_context_stack().is_empty())
responsible_event_loop().perform_a_microtask_checkpoint();
main_thread_event_loop().perform_a_microtask_checkpoint();
}
static JS::ExecutionContext* top_most_script_having_execution_context(JS::VM& vm)