Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89 Commit: 93712b24bf Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256 Reviewed-by: https://github.com/sideshowbarker
2025-10-02 22:29:10 +00:00 · 2024-11-09 12:25:08 -05:00 · 2024-11-09 12:25:08 -05:00 · 93712b24bf · 2024-11-10 11:51:52 +00:00
commit 93712b24bf
parent 950e819ee7
4547 changed files with 104 additions and 113 deletions
--- a/Libraries/LibJS/Runtime/Realm.cpp
+++ b/Libraries/LibJS/Runtime/Realm.cpp
@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
+ * Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <AK/TypeCasts.h>
+#include <LibJS/Heap/DeferGC.h>
+#include <LibJS/Runtime/GlobalEnvironment.h>
+#include <LibJS/Runtime/GlobalObject.h>
+#include <LibJS/Runtime/Realm.h>
+#include <LibJS/Runtime/VM.h>
+
+namespace JS {
+
+JS_DEFINE_ALLOCATOR(Realm);
+
+// 9.3.1 InitializeHostDefinedRealm ( ), https://tc39.es/ecma262/#sec-initializehostdefinedrealm
+ThrowCompletionOr<NonnullOwnPtr<ExecutionContext>> Realm::initialize_host_defined_realm(VM& vm, Function<Object*(Realm&)> create_global_object, Function<Object*(Realm&)> create_global_this_value)
+{
+    DeferGC defer_gc(vm.heap());
+
+    // 1. Let realm be a new Realm Record
+    auto realm = vm.heap().allocate_without_realm<Realm>();
+
+    // 2. Perform CreateIntrinsics(realm).
+    MUST(Intrinsics::create(*realm));
+
+    // FIXME: 3. Set realm.[[AgentSignifier]] to AgentSignifier().
+
+    // NOTE: Done on step 1.
+    // 4. Set realm.[[GlobalObject]] to undefined.
+    // 5. Set realm.[[GlobalEnv]] to undefined.
+
+    // FIXME: 6. Set realm.[[TemplateMap]] to a new empty List.
+
+    // 7. Let newContext be a new execution context.
+    auto new_context = ExecutionContext::create();
+
+    // 8. Set the Function of newContext to null.
+    new_context->function = nullptr;
+
+    // 9. Set the Realm of newContext to realm.
+    new_context->realm = realm;
+
+    // 10. Set the ScriptOrModule of newContext to null.
+    new_context->script_or_module = {};
+
+    // 11. Push newContext onto the execution context stack; newContext is now the running execution context.
+    vm.push_execution_context(*new_context);
+
+    // 12. If the host requires use of an exotic object to serve as realm's global object, then
+    Object* global = nullptr;
+    if (create_global_object) {
+        // a. Let global be such an object created in a host-defined manner.
+        global = create_global_object(*realm);
+    }
+    // 13. Else,
+    else {
+        // a. Let global be OrdinaryObjectCreate(realm.[[Intrinsics]].[[%Object.prototype%]]).
+        // NOTE: We allocate a proper GlobalObject directly as this plain object is
+        //       turned into one via SetDefaultGlobalBindings in the spec.
+        global = vm.heap().allocate_without_realm<GlobalObject>(realm);
+    }
+
+    // 14. If the host requires that the this binding in realm's global scope return an object other than the global object, then
+    Object* this_value = nullptr;
+    if (create_global_this_value) {
+        // a. Let thisValue be such an object created in a host-defined manner.
+        this_value = create_global_this_value(*realm);
+    }
+    // 15. Else,
+    else {
+        // a. Let thisValue be global.
+        this_value = global;
+    }
+
+    // 16. Set realm.[[GlobalObject]] to global.
+    realm->m_global_object = global;
+
+    // 17. Set realm.[[GlobalEnv]] to NewGlobalEnvironment(global, thisValue).
+    realm->m_global_environment = vm.heap().allocate_without_realm<GlobalEnvironment>(*global, *this_value);
+
+    // 18. Perform ? SetDefaultGlobalBindings(realm).
+    set_default_global_bindings(*realm);
+
+    // 19. Create any host-defined global object properties on global.
+    global->initialize(*realm);
+
+    // 20. Return unused.
+    return new_context;
+}
+
+void Realm::visit_edges(Visitor& visitor)
+{
+    Base::visit_edges(visitor);
+    visitor.visit(m_intrinsics);
+    visitor.visit(m_global_object);
+    visitor.visit(m_global_environment);
+    if (m_host_defined)
+        m_host_defined->visit_edges(visitor);
+}
+
+}