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LibJS+LibWeb: Add C++ compile_parsed_module wrapper

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Add compile_parsed_module() to RustIntegration, which takes a
RustParsedProgram and a SourceCode (from parse_program with
ProgramType::Module) and compiles it on the main thread with GC
interaction.

Rewrite compile_module() to use the new split functions internally.

Add SourceTextModule::parse_from_pre_parsed() and
JavaScriptModuleScript::create_from_pre_parsed() to allow creating
module scripts from a pre-parsed RustParsedProgram.

This prepares the infrastructure for off-thread module parsing.
This commit is contained in:
Andreas Kling 2026-02-27 23:44:44 +01:00 • committed by Andreas Kling
parent 7d45e897c4
commit 3f4d3d6108
Notes: github-actions[bot] 2026-03-06 12:07:29 +00:00
6 changed files with 132 additions and 59 deletions
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23
Libraries/LibWeb/HTML/Scripting/ModuleScript.cpp
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@ -71,6 +71,29 @@ WebIDL::ExceptionOr<GC::Ptr<JavaScriptModuleScript>> JavaScriptModuleScript::cre
return script;
}
WebIDL::ExceptionOr<GC::Ptr<JavaScriptModuleScript>> JavaScriptModuleScript::create_from_pre_parsed(ByteString const& filename, StringView source, JS::Realm& realm, URL::URL base_url, RustParsedProgram* parsed)
{
if (HTML::is_scripting_disabled(realm))
source = ""sv;
auto script = realm.create<JavaScriptModuleScript>(move(base_url), filename, realm);
script->set_parse_error(JS::js_null());
script->set_error_to_rethrow(JS::js_null());
auto result = JS::SourceTextModule::parse_from_pre_parsed(parsed, source, realm, filename.view(), script);
if (result.is_error()) {
auto& parse_error = result.error().first();
dbgln("JavaScriptModuleScript: Failed to parse: {}", parse_error.to_string());
script->set_parse_error(JS::SyntaxError::create(realm, parse_error.to_string()));
return script;
}
script->m_record = result.value();
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* JavaScriptModuleScript::run(PreventErrorReporting)