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@@ -40,6 +40,8 @@ void ObjectPrototype::initialize(GlobalObject& global_object)
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// Annex B
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// Annex B
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define_native_function(vm.names.__defineGetter__, define_getter, 2, attr);
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define_native_function(vm.names.__defineGetter__, define_getter, 2, attr);
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define_native_function(vm.names.__defineSetter__, define_setter, 2, attr);
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define_native_function(vm.names.__defineSetter__, define_setter, 2, attr);
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+ define_native_function(vm.names.__lookupGetter__, lookup_getter, 1, attr);
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+ define_native_function(vm.names.__lookupSetter__, lookup_setter, 1, attr);
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define_native_accessor(vm.names.__proto__, proto_getter, proto_setter, Attribute::Configurable);
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define_native_accessor(vm.names.__proto__, proto_getter, proto_setter, Attribute::Configurable);
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}
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}
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@@ -214,6 +216,56 @@ JS_DEFINE_NATIVE_FUNCTION(ObjectPrototype::define_setter)
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return js_undefined();
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return js_undefined();
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}
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}
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+// B.2.2.4 Object.prototype.__lookupGetter__ ( P ), https://tc39.es/ecma262/#sec-object.prototype.__lookupGetter__
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+JS_DEFINE_NATIVE_FUNCTION(ObjectPrototype::lookup_getter)
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+{
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+ auto object = vm.this_value(global_object).to_object(global_object);
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+ if (vm.exception())
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+ return {};
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+
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+ auto key = vm.argument(0).to_property_key(global_object);
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+ if (vm.exception())
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+ return {};
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+
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+ while (object) {
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+ auto desc = object->get_own_property_descriptor(key);
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+ if (vm.exception())
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+ return {};
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+ if (desc.has_value())
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+ return desc->getter ?: js_undefined();
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+ object = object->prototype();
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+ if (vm.exception())
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+ return {};
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+ }
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+
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+ return js_undefined();
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+}
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+
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+// B.2.2.5 Object.prototype.__lookupSetter__ ( P ), https://tc39.es/ecma262/#sec-object.prototype.__lookupSetter__
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+JS_DEFINE_NATIVE_FUNCTION(ObjectPrototype::lookup_setter)
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+{
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+ auto* object = vm.this_value(global_object).to_object(global_object);
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+ if (vm.exception())
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+ return {};
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+
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+ auto key = vm.argument(0).to_property_key(global_object);
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+ if (vm.exception())
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+ return {};
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+
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+ while (object) {
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+ auto desc = object->get_own_property_descriptor(key);
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+ if (vm.exception())
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+ return {};
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+ if (desc.has_value())
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+ return desc->setter ?: js_undefined();
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+ object = object->prototype();
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+ if (vm.exception())
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+ return {};
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+ }
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+
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+ return js_undefined();
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+}
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+
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// B.2.2.1.1 get Object.prototype.__proto__, https://tc39.es/ecma262/#sec-get-object.prototype.__proto__
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// B.2.2.1.1 get Object.prototype.__proto__, https://tc39.es/ecma262/#sec-get-object.prototype.__proto__
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JS_DEFINE_NATIVE_FUNCTION(ObjectPrototype::proto_getter)
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JS_DEFINE_NATIVE_FUNCTION(ObjectPrototype::proto_getter)
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{
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{
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