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LibWeb: Add a simple internals objects only available during testing

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This object is available as `window.internals` (or just `internals`) and
is only accessible while running in "test mode".

This first version only has one API: gc(), which triggers a garbage
collection immediately.

In the future, we can add more APIs here to help us test parts of the
engine that are hard or impossible to reach via public web APIs.
This commit is contained in:
Andreas Kling 2023-07-21 11:59:49 +02:00
parent ba236e3f21
commit ec24d7555a
14 changed files with 109 additions and 5 deletions
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13
Userland/Libraries/LibWeb/HTML/Window.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2020-2022, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2020-2023, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021-2022, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2021-2023, Linus Groh <linusg@serenityos.org>
*
@ -51,6 +51,7 @@
#include <LibWeb/HighResolutionTime/TimeOrigin.h>
#include <LibWeb/Infra/Base64.h>
#include <LibWeb/Infra/CharacterTypes.h>
#include <LibWeb/Internals/Internals.h>
#include <LibWeb/Layout/Viewport.h>
#include <LibWeb/Page/Page.h>
#include <LibWeb/RequestIdleCallback/IdleDeadline.h>
@ -805,6 +806,13 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<WebIDL::CallbackType>> Window::byte_length_
return JS::NonnullGCPtr { *m_byte_length_queuing_strategy_size_function };
}
static bool s_internals_object_exposed = false;
void Window::set_internals_object_exposed(bool exposed)
{
s_internals_object_exposed = exposed;
}
WebIDL::ExceptionOr<void> Window::initialize_web_interfaces(Badge<WindowEnvironmentSettingsObject>)
{
auto& realm = this->realm();
@ -815,6 +823,9 @@ WebIDL::ExceptionOr<void> Window::initialize_web_interfaces(Badge<WindowEnvironm
MUST_OR_THROW_OOM(Bindings::WindowGlobalMixin::initialize(realm, *this));
MUST_OR_THROW_OOM(WindowOrWorkerGlobalScopeMixin::initialize(realm));
if (s_internals_object_exposed)
define_direct_property("internals", MUST_OR_THROW_OOM(heap().allocate<Internals::Internals>(realm, realm)), JS::default_attributes);
return {};
}