2692db8699
Note that as of this commit, there aren't any such throwers, and the call site in Heap::allocate will drop exceptions on the floor. This commit only serves to change the declaration of the overrides, make sure they return an empty value, and to propagate OOM errors frm their base initialize invocations.
79 lines
2.7 KiB
C++
79 lines
2.7 KiB
C++
/*
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* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Runtime/AbstractOperations.h>
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#include <LibJS/Runtime/ShadowRealm.h>
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#include <LibJS/Runtime/ShadowRealmConstructor.h>
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namespace JS {
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// 3.2 The ShadowRealm Constructor, https://tc39.es/proposal-shadowrealm/#sec-shadowrealm-constructor
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ShadowRealmConstructor::ShadowRealmConstructor(Realm& realm)
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: NativeFunction(realm.vm().names.ShadowRealm.as_string(), *realm.intrinsics().function_prototype())
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{
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}
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ThrowCompletionOr<void> ShadowRealmConstructor::initialize(Realm& realm)
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{
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auto& vm = this->vm();
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MUST_OR_THROW_OOM(NativeFunction::initialize(realm));
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// 3.3.1 ShadowRealm.prototype, https://tc39.es/proposal-shadowrealm/#sec-shadowrealm.prototype
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define_direct_property(vm.names.prototype, realm.intrinsics().shadow_realm_prototype(), 0);
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define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
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return {};
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}
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// 3.2.1 ShadowRealm ( ), https://tc39.es/proposal-shadowrealm/#sec-shadowrealm
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ThrowCompletionOr<Value> ShadowRealmConstructor::call()
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{
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auto& vm = this->vm();
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// 1. If NewTarget is undefined, throw a TypeError exception.
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return vm.throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, vm.names.ShadowRealm);
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}
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// 3.2.1 ShadowRealm ( ), https://tc39.es/proposal-shadowrealm/#sec-shadowrealm
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ThrowCompletionOr<NonnullGCPtr<Object>> ShadowRealmConstructor::construct(FunctionObject& new_target)
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{
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auto& vm = this->vm();
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// 3. Let realmRec be CreateRealm().
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auto realm = Realm::create(vm);
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// 5. Let context be a new execution context.
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auto context = ExecutionContext { vm.heap() };
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// 6. Set the Function of context to null.
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context.function = nullptr;
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// 7. Set the Realm of context to realmRec.
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context.realm = realm;
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// 8. Set the ScriptOrModule of context to null.
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// Note: This is already the default value.
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// 2. Let O be ? OrdinaryCreateFromConstructor(NewTarget, "%ShadowRealm.prototype%", « [[ShadowRealm]], [[ExecutionContext]] »).
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// 4. Set O.[[ShadowRealm]] to realmRec.
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// 9. Set O.[[ExecutionContext]] to context.
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auto object = TRY(ordinary_create_from_constructor<ShadowRealm>(vm, new_target, &Intrinsics::shadow_realm_prototype, *realm, move(context)));
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// 10. Perform ? SetRealmGlobalObject(realmRec, undefined, undefined).
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realm->set_global_object(nullptr, nullptr);
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// 11. Perform ? SetDefaultGlobalBindings(O.[[ShadowRealm]]).
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auto& global_object = set_default_global_bindings(object->shadow_realm());
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// FIXME: 12. Perform ? HostInitializeShadowRealm(O.[[ShadowRealm]]).
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global_object.initialize(object->shadow_realm());
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// 13. Return O.
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return object;
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}
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}
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