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LibJS: Implement import.meta for bytecode

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This commit is contained in:
Gabriel Dinner-David 2023-07-11 23:07:12 -04:00 • committed by Andreas Kling
parent a1692931af
commit d29bd55b48
8 changed files with 78 additions and 49 deletions
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45
Userland/Libraries/LibJS/AST.cpp
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@ -3492,7 +3492,6 @@ Completion MetaProperty::execute(Interpreter& interpreter) const
{
InterpreterNodeScope node_scope { interpreter, *this };
auto& vm = interpreter.vm();
auto& realm = *vm.current_realm();
// NewTarget : new . target
if (m_type == MetaProperty::Type::NewTarget) {
@ -3502,49 +3501,7 @@ Completion MetaProperty::execute(Interpreter& interpreter) const
// ImportMeta : import . meta
if (m_type == MetaProperty::Type::ImportMeta) {
// 1. Let module be GetActiveScriptOrModule().
auto script_or_module = interpreter.vm().get_active_script_or_module();
// 2. Assert: module is a Source Text Module Record.
VERIFY(script_or_module.has<NonnullGCPtr<Module>>());
VERIFY(script_or_module.get<NonnullGCPtr<Module>>());
VERIFY(is<SourceTextModule>(*script_or_module.get<NonnullGCPtr<Module>>()));
auto& module = static_cast<SourceTextModule&>(*script_or_module.get<NonnullGCPtr<Module>>());
// 3. Let importMeta be module.[[ImportMeta]].
auto* import_meta = module.import_meta();
// 4. If importMeta is empty, then
if (import_meta == nullptr) {
// a. Set importMeta to OrdinaryObjectCreate(null).
import_meta = Object::create(realm, nullptr);
// b. Let importMetaValues be HostGetImportMetaProperties(module).
auto import_meta_values = interpreter.vm().host_get_import_meta_properties(module);
// c. For each Record { [[Key]], [[Value]] } p of importMetaValues, do
for (auto& entry : import_meta_values) {
// i. Perform ! CreateDataPropertyOrThrow(importMeta, p.[[Key]], p.[[Value]]).
MUST(import_meta->create_data_property_or_throw(entry.key, entry.value));
}
// d. Perform HostFinalizeImportMeta(importMeta, module).
interpreter.vm().host_finalize_import_meta(import_meta, module);
// e. Set module.[[ImportMeta]] to importMeta.
module.set_import_meta({}, import_meta);
// f. Return importMeta.
return Value { import_meta };
}
// 5. Else,
else {
// a. Assert: Type(importMeta) is Object.
// Note: This is always true by the type.
// b. Return importMeta.
return Value { import_meta };
}
return Value(vm.get_import_meta());
}
VERIFY_NOT_REACHED();