jerryscript/tests/jerry/es.next/function-properties.js
Szilagyi Adam ff47c84bc4
Rework Object's [[OwnPropertyKeys]] (#4001)
I've removed the ecma_op_object_get_property_names method, and implemented the following ones:
- ecma_op_object_own_property_keys: this is now the internal [[OwnPropertyKeys]] method
- ecma_op_object_enumerate: this is used for the for-in iterator
- ecma_object_sort_property_names: this is used for sorting the property names of an object
- ecma_object_list_lazy_property_names: this is for getting the lazy instantiated properties
- ecma_object_prop_name_is_duplicated: this is for checking if a given property is duplicated in an object

Also the for-in operation with Proxy object works with this patch, #3992 should be closed

JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu
2020-07-27 11:37:04 +02:00

47 lines
1.3 KiB
JavaScript

// Copyright JS Foundation and other contributors, http://js.foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
function getProperties(obj)
{
var str = "";
for (name in obj)
{
if (str)
{
str += " " + name;
}
else
{
str = name;
}
}
return str;
}
var prototype_obj = { dummy:1, length:1, caller:null,
arguments:null, prototype:null };
var func = function() {};
Object.setPrototypeOf(func, prototype_obj);
assert(getProperties(func) == "dummy");
var bound_func = (function() {}).bind(null);
Object.setPrototypeOf(bound_func, prototype_obj);
assert(getProperties(bound_func) == "dummy caller arguments prototype");
// 'print' is an external function
Object.setPrototypeOf(print, prototype_obj);
assert(getProperties(print) == "dummy length caller arguments");