ladybird/Userland/Libraries/LibJS/Runtime/Realm.cpp

49 lines
1.4 KiB
C++

/*
* 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);
}
}