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LibJS+LibWeb: Make CyclicModule & GraphLoadingState GC-allocated

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This allows them to participate in the ownership graph and fixes a
lifetime issue in module loading found by ASAN.

Co-Authored-By: networkException <networkexception@serenityos.org>
This commit is contained in:
Andreas Kling 2023-11-17 12:14:18 +01:00
parent aa7501a66a
commit 0817d8bda6
6 changed files with 60 additions and 24 deletions
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12
Userland/Libraries/LibWeb/Bindings/MainThreadVM.cpp
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@ -404,7 +404,7 @@ ErrorOr<void> initialize_main_thread_vm()
};
// 8.1.6.5.3 HostLoadImportedModule(referrer, moduleRequest, loadState, payload), https://html.spec.whatwg.org/multipage/webappapis.html#hostloadimportedmodule
s_main_thread_vm->host_load_imported_module = [](JS::Realm& realm, Variant<JS::NonnullGCPtr<JS::Script>, JS::NonnullGCPtr<JS::CyclicModule>> referrer, JS::ModuleRequest const& module_request, Optional<JS::GraphLoadingState::HostDefined> load_state, JS::GraphLoadingState& payload) -> void {
s_main_thread_vm->host_load_imported_module = [](JS::Realm& realm, Variant<JS::NonnullGCPtr<JS::Script>, JS::NonnullGCPtr<JS::CyclicModule>> referrer, JS::ModuleRequest const& module_request, JS::GCPtr<JS::GraphLoadingState::HostDefined> load_state, JS::GraphLoadingState& payload) -> void {
// 1. Let settingsObject be the current settings object.
Optional<HTML::EnvironmentSettingsObject&> settings_object = HTML::current_settings_object();
@ -460,8 +460,8 @@ ErrorOr<void> initialize_main_thread_vm()
Optional<HTML::EnvironmentSettingsObject&> fetch_client = *settings_object;
// 12. If loadState is not undefined, then:
if (load_state.has_value()) {
auto fetch_context = static_cast<HTML::FetchContext&>(load_state.value());
if (load_state) {
auto& fetch_context = static_cast<HTML::FetchContext&>(*load_state);
// 1. Set destination to loadState.[[Destination]].
destination = fetch_context.destination;
@ -490,9 +490,9 @@ ErrorOr<void> initialize_main_thread_vm()
completion = JS::throw_completion(parse_error);
// 3. If loadState is not undefined and loadState.[[ParseError]] is null, set loadState.[[ParseError]] to parseError.
if (load_state.has_value()) {
auto load_state_as_fetch_context = static_cast<HTML::FetchContext&>(load_state.value());
if (load_state_as_fetch_context.parse_error->is_empty()) {
if (load_state) {
auto& load_state_as_fetch_context = static_cast<HTML::FetchContext&>(*load_state);
if (load_state_as_fetch_context.parse_error.is_null()) {
load_state_as_fetch_context.parse_error = parse_error;
}
}