LibJS: Add PropertyDescriptor object

This new struct is now returned from get_own_property_descriptor. To
preserve the old functionality of returning an object, there is now a
get_own_property_descriptor_object method, for use in
{Object,Reflect}.getOwnPropertyDescriptor().

This change will be useful for the implementation of Proxies, which do a
lot of descriptor checks. We want to avoid as many object gets and puts
as possible.

1 files changed, 1 insertions, 1 deletions

diff --git a/Libraries/LibJS/Runtime/ReflectObject.cpp b/Libraries/LibJS/Runtime/ReflectObject.cpp
index 2a10fce38e..c81ba0fea2 100644
--- a/Libraries/LibJS/Runtime/ReflectObject.cpp
+++ b/Libraries/LibJS/Runtime/ReflectObject.cpp
@@ -189,7 +189,7 @@ Value ReflectObject::get_own_property_descriptor(Interpreter& interpreter)
     auto property_key = interpreter.argument(1).to_string(interpreter);
     if (interpreter.exception())
         return {};
-    return target->get_own_property_descriptor(property_key);
+    return target->get_own_property_descriptor_object(property_key);
 }
 
 Value ReflectObject::get_prototype_of(Interpreter& interpreter)