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LibWeb: Wire up synthetic realm to settings object and execution context

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Shannon Booth 2024-10-26 22:18:22 +13:00 committed by Andrew Kaster
parent c69a9812c8
commit b24cd3ecf6
Notes: github-actions[bot] 2024-11-05 17:59:41 +00:00 
Author: https://github.com/shannonbooth
Commit: https://github.com/LadybirdBrowser/ladybird/commit/b24cd3ecf60
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/1993
Reviewed-by: https://github.com/ADKaster ✅
1 changed files with 36 additions and 16 deletions
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52
Userland/Libraries/LibWeb/HTML/Scripting/Environments.cpp
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@ -8,6 +8,7 @@
*/
#include <LibWeb/Bindings/MainThreadVM.h>
#include <LibWeb/Bindings/SyntheticHostDefined.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/Fetch/Infrastructure/FetchRecord.h>
#include <LibWeb/HTML/PromiseRejectionEvent.h>
@ -137,10 +138,15 @@ void prepare_to_run_script(JS::Realm& realm)
// https://whatpr.org/html/9893/b8ea975...df5706b/webappapis.html#concept-realm-execution-context
JS::ExecutionContext const& execution_context_of_realm(JS::Realm const& realm)
{
// FIXME: 1. If realm is a principal realm, then return the realm execution context of the environment settings object of realm.
// FIXME: 2. Assert: realm is a synthetic realm.
// FIXME: 3. Return the execution context of the synthetic realm settings object of realm.
return Bindings::principal_host_defined_environment_settings_object(realm).realm_execution_context();
VERIFY(realm.host_defined());
// 1. If realm is a principal realm, then return the realm execution context of the environment settings object of realm.
if (is<Bindings::PrincipalHostDefined>(*realm.host_defined()))
return static_cast<Bindings::PrincipalHostDefined const&>(*realm.host_defined()).environment_settings_object->realm_execution_context();
// 2. Assert: realm is a synthetic realm.
// 3. Return the execution context of the synthetic realm settings object of realm.
return *verify_cast<Bindings::SyntheticHostDefined>(*realm.host_defined()).synthetic_realm_settings.execution_context;
}
// https://html.spec.whatwg.org/multipage/webappapis.html#clean-up-after-running-script
@ -291,10 +297,15 @@ void disallow_further_import_maps(JS::Realm& realm)
// https://whatpr.org/html/9893/webappapis.html#concept-realm-module-map
ModuleMap& module_map_of_realm(JS::Realm& realm)
{
// FIXME: 1. If realm is a principal realm, then return the module map of the environment settings object of realm.
// FIXME: 2. Assert: realm is a synthetic realm.
// FIXME: 3. Return the module map of the synthetic realm settings object of realm.
return principal_realm_settings_object(realm).module_map();
VERIFY(realm.host_defined());
// 1. If realm is a principal realm, then return the module map of the environment settings object of realm.
if (is<Bindings::PrincipalHostDefined>(*realm.host_defined()))
return static_cast<Bindings::PrincipalHostDefined const&>(*realm.host_defined()).environment_settings_object->module_map();
// 2. Assert: realm is a synthetic realm.
// 3. Return the module map of the synthetic realm settings object of realm.
return *verify_cast<Bindings::SyntheticHostDefined>(*realm.host_defined()).synthetic_realm_settings.module_map;
}
// https://html.spec.whatwg.org/multipage/webappapis.html#concept-incumbent-realm
@ -326,8 +337,8 @@ JS::Realm& incumbent_realm()
// https://whatpr.org/html/9893/b8ea975...df5706b/webappapis.html#incumbent-settings-object
EnvironmentSettingsObject& incumbent_settings_object()
{
// FIXME: Then, the incumbent settings object is the incumbent realm's principal realm settings object.
return Bindings::principal_host_defined_environment_settings_object(incumbent_realm());
// Then, the incumbent settings object is the incumbent realm's principal realm settings object.
return principal_realm_settings_object(principal_realm(incumbent_realm()));
}
// https://html.spec.whatwg.org/multipage/webappapis.html#concept-incumbent-global
@ -350,10 +361,18 @@ JS::Realm& current_principal_realm()
// https://whatpr.org/html/9893/webappapis.html#concept-principal-realm-of-realm
JS::Realm& principal_realm(JS::Realm& realm)
{
// FIXME: 1. If realm.[[HostDefined]] is a synthetic realm settings object, then:
// FIXME: 1.1. Assert: realm is a synthetic realm.
// FIXME: 1.2. Set realm to the principal realm of realm.[[HostDefined]].
// FIXME: 2. Assert: realm.[[HostDefined]] is an environment settings object and realm is a principal realm.
VERIFY(realm.host_defined());
// 1. If realm.[[HostDefined]] is a synthetic realm settings object, then:
if (is<Bindings::SyntheticHostDefined>(*realm.host_defined())) {
// 1. Assert: realm is a synthetic realm.
// 2. Set realm to the principal realm of realm.[[HostDefined]].
return static_cast<Bindings::SyntheticHostDefined const&>(*realm.host_defined()).synthetic_realm_settings.principal_realm;
}
// 2. Assert: realm.[[HostDefined]] is an environment settings object and realm is a principal realm.
VERIFY(is<Bindings::PrincipalHostDefined>(*realm.host_defined()));
// 3. Return realm.
return realm;
}
@ -409,15 +428,16 @@ JS::Object& relevant_global_object(JS::Object const& object)
}
// https://html.spec.whatwg.org/multipage/webappapis.html#concept-entry-realm
// https://whatpr.org/html/9893/webappapis.html#concept-entry-realm
JS::Realm& entry_realm()
{
auto& event_loop = HTML::main_thread_event_loop();
auto& vm = event_loop.vm();
// With this in hand, we define the entry execution context to be the most recently pushed item in the JavaScript execution context stack that is a realm execution context.
// The entry realm is the entry execution context's Realm component.
// The entry realm is the principal realm of the entry execution context's Realm component.
// NOTE: Currently all execution contexts in LibJS are realm execution contexts
return *vm.running_execution_context().realm;
return principal_realm(*vm.running_execution_context().realm);
}
// https://html.spec.whatwg.org/multipage/webappapis.html#entry-settings-object