/*

 * Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#include <LibJS/Runtime/GlobalEnvironment.h>

#include <LibJS/Runtime/GlobalObject.h>

#include <LibJS/Runtime/Realm.h>

#include <LibJS/Runtime/VM.h>

namespace JS {

// 9.3.1 CreateRealm ( ), https://tc39.es/ecma262/#sec-createrealm

Realm* Realm::create(VM& vm)

{

    return vm.heap().allocate_without_global_object<Realm>();

}

// 9.3.3 SetRealmGlobalObject ( realmRec, globalObj, thisValue ), https://tc39.es/ecma262/#sec-setrealmglobalobject

void Realm::set_global_object(GlobalObject& global_object, Object* this_value)

{

    // NOTE: Step 1 is not supported, the global object must be allocated elsewhere.

    // 2. Assert: Type(globalObj) is Object.

    // Non-standard

    global_object.set_associated_realm({}, *this);

    // 3. If thisValue is undefined, set thisValue to globalObj.

    if (!this_value)

        this_value = &global_object;

    // 4. Set realmRec.[[GlobalObject]] to globalObj.

    m_global_object = &global_object;

    // 5. Let newGlobalEnv be NewGlobalEnvironment(globalObj, thisValue).

    // 6. Set realmRec.[[GlobalEnv]] to newGlobalEnv.

    m_global_environment = global_object.heap().allocate_without_global_object<GlobalEnvironment>(global_object, *this_value);

    // 7. Return unused.

}

void Realm::visit_edges(Visitor& visitor)

{

    visitor.visit(m_global_object);

    visitor.visit(m_global_environment);

}

}