ecd163bdf1
No functional changes - we can still very easily get to the global object via `Realm::global_object()`. This is in preparation of moving the intrinsics to the realm and no longer having to pass a global object when allocating any object. In a few (now, and many more in subsequent commits) places we get a realm using `GlobalObject::associated_realm()`, this is intended to be temporary. For example, create() functions will later receive the same treatment and are passed a realm instead of a global object.
80 lines
3 KiB
C++
80 lines
3 KiB
C++
/*
|
|
* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibJS/Runtime/AbstractOperations.h>
|
|
#include <LibJS/Runtime/ShadowRealm.h>
|
|
#include <LibJS/Runtime/ShadowRealmConstructor.h>
|
|
|
|
namespace JS {
|
|
|
|
// 3.2 The ShadowRealm Constructor, https://tc39.es/proposal-shadowrealm/#sec-shadowrealm-constructor
|
|
ShadowRealmConstructor::ShadowRealmConstructor(Realm& realm)
|
|
: NativeFunction(vm().names.ShadowRealm.as_string(), *realm.global_object().function_prototype())
|
|
{
|
|
}
|
|
|
|
void ShadowRealmConstructor::initialize(GlobalObject& global_object)
|
|
{
|
|
auto& vm = this->vm();
|
|
NativeFunction::initialize(global_object);
|
|
|
|
// 3.3.1 ShadowRealm.prototype, https://tc39.es/proposal-shadowrealm/#sec-shadowrealm.prototype
|
|
define_direct_property(vm.names.prototype, global_object.shadow_realm_prototype(), 0);
|
|
|
|
define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
|
|
}
|
|
|
|
// 3.2.1 ShadowRealm ( ), https://tc39.es/proposal-shadowrealm/#sec-shadowrealm
|
|
ThrowCompletionOr<Value> ShadowRealmConstructor::call()
|
|
{
|
|
auto& vm = this->vm();
|
|
|
|
// 1. If NewTarget is undefined, throw a TypeError exception.
|
|
return vm.throw_completion<TypeError>(global_object(), ErrorType::ConstructorWithoutNew, vm.names.ShadowRealm);
|
|
}
|
|
|
|
// 3.2.1 ShadowRealm ( ), https://tc39.es/proposal-shadowrealm/#sec-shadowrealm
|
|
ThrowCompletionOr<Object*> ShadowRealmConstructor::construct(FunctionObject& new_target)
|
|
{
|
|
auto& vm = this->vm();
|
|
auto& global_object = this->global_object();
|
|
|
|
// 3. Let realmRec be CreateRealm().
|
|
auto* realm = Realm::create(vm);
|
|
|
|
// 5. Let context be a new execution context.
|
|
auto context = ExecutionContext { vm.heap() };
|
|
|
|
// 6. Set the Function of context to null.
|
|
context.function = nullptr;
|
|
|
|
// 7. Set the Realm of context to realmRec.
|
|
context.realm = realm;
|
|
|
|
// 8. Set the ScriptOrModule of context to null.
|
|
// Note: This is already the default value.
|
|
|
|
// 2. Let O be ? OrdinaryCreateFromConstructor(NewTarget, "%ShadowRealm.prototype%", « [[ShadowRealm]], [[ExecutionContext]] »).
|
|
// 4. Set O.[[ShadowRealm]] to realmRec.
|
|
// 9. Set O.[[ExecutionContext]] to context.
|
|
auto* object = TRY(ordinary_create_from_constructor<ShadowRealm>(global_object, new_target, &GlobalObject::shadow_realm_prototype, *realm, move(context)));
|
|
|
|
// 10. Perform ? SetRealmGlobalObject(realmRec, undefined, undefined).
|
|
auto* new_global_object = vm.heap().allocate_without_global_object<GlobalObject>(*realm);
|
|
realm->set_global_object(new_global_object, nullptr);
|
|
new_global_object->initialize_global_object();
|
|
|
|
// TODO: I don't think we should have these exactly like this, that doesn't work well with how
|
|
// we create global objects. Still, it should be possible to make a ShadowRealm with a
|
|
// non-LibJS GlobalObject somehow.
|
|
// 11. Perform ? SetDefaultGlobalBindings(O.[[ShadowRealm]]).
|
|
// 12. Perform ? HostInitializeShadowRealm(O.[[ShadowRealm]]).
|
|
|
|
// 13. Return O.
|
|
return object;
|
|
}
|
|
|
|
}
|