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LibWeb: Support JSON modules

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This adds support for importing JSON objects from JSON files in
javascript.
This commit is contained in:
Glenn Skrzypczak 2025-09-02 16:23:39 +02:00 • committed by Shannon Booth
parent f1d3244b22
commit 7392d2a2f4
Notes: github-actions[bot] 2026-04-03 19:22:21 +00:00
10 changed files with 66 additions and 5 deletions
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30
Libraries/LibWeb/HTML/Scripting/ModuleScript.cpp
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@ -118,6 +118,36 @@ WebIDL::ExceptionOr<GC::Ptr<ModuleScript>> ModuleScript::create_a_css_module_scr
return script;
}
// https://html.spec.whatwg.org/multipage/webappapis.html#creating-a-json-module-script
// https://whatpr.org/html/9893/webappapis.html#creating-a-json-module-script
WebIDL::ExceptionOr<GC::Ptr<ModuleScript>> ModuleScript::create_a_json_module_script(ByteString const& filename, StringView source, JS::Realm& realm)
{
// 1. Let script be a new module script that this algorithm will subsequently initialize.
// 2. Set script's realm to realm.
// 3. Set script's base URL and fetch options to null.
// FIXME: Set options.
auto script = realm.create<ModuleScript>(Optional<URL::URL> {}, filename, realm);
// 4. Set script's parse error and error to rethrow to null.
script->set_parse_error(JS::js_null());
script->set_error_to_rethrow(JS::js_null());
// 5. Let result be ParseJSONModule(source).
// If this throws an exception, catch it, and set script's parse error to that exception, and return script.
TemporaryExecutionContext execution_context { realm };
auto result = JS::parse_json_module(realm, source, filename);
if (result.is_error()) {
script->set_parse_error(result.error().value());
return script;
}
// 6. Set script's record to result.
script->m_record = result.value();
// 7. Return script.
return script;
}
// https://html.spec.whatwg.org/multipage/webappapis.html#run-a-module-script
// https://whatpr.org/html/9893/webappapis.html#run-a-module-script
JS::Promise* ModuleScript::run(PreventErrorReporting)