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LibJS: Move intrinsics to the realm

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Intrinsics, i.e. mostly constructor and prototype objects, but also
things like empty and new object shape now live on a new heap-allocated
JS::Intrinsics object, thus completing the long journey of taking all
the magic away from the global object.
This represents the Realm's [[Intrinsics]] slot in the spec and matches
its existing [[GlobalObject]] / [[GlobalEnv]] slots in terms of
architecture.

In the majority of cases it should now be possibly to fully allocate a
regular object without the global object existing, and in fact that's
what we do now - the realm is allocated before the global object, and
the intrinsics between both :^)
This commit is contained in:
Linus Groh 2022-08-27 00:54:55 +01:00
parent 84c4b66721
commit 50428ea8d2
217 changed files with 1305 additions and 1039 deletions
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14
Userland/Libraries/LibJS/Runtime/Realm.cpp
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@ -17,7 +17,18 @@ namespace JS {
// 9.3.1 CreateRealm ( ), https://tc39.es/ecma262/#sec-createrealm
Realm* Realm::create(VM& vm)
{
return vm.heap().allocate_without_realm<Realm>();
// 1. Let realmRec be a new Realm Record.
auto* realm = vm.heap().allocate_without_realm<Realm>();
// 2. Perform CreateIntrinsics(realmRec).
Intrinsics::create(*realm);
// 3. Set realmRec.[[GlobalObject]] to undefined.
// 4. Set realmRec.[[GlobalEnv]] to undefined.
// 5. Set realmRec.[[TemplateMap]] to a new empty List.
// 6. Return realmRec.
return realm;
}
// 9.6 InitializeHostDefinedRealm ( ), https://tc39.es/ecma262/#sec-initializehostdefinedrealm
@ -107,6 +118,7 @@ void Realm::set_global_object(GlobalObject* global_object, GlobalObject* this_va
void Realm::visit_edges(Visitor& visitor)
{
visitor.visit(m_intrinsics);
visitor.visit(m_global_object);
visitor.visit(m_global_environment);
}