mirror of https://github.com/tc39/test262.git
46 lines
1.6 KiB
JavaScript
46 lines
1.6 KiB
JavaScript
|
// Copyright (C) 2016 Jordan Harband. All rights reserved.
|
||
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
||
|
|
|
||
|
|
/*---
|
||
|
|
description: Object.getOwnPropertyDescriptors should perform observable operations in the correct order
|
||
|
|
es7id: pending
|
||
|
|
author: Jordan Harband
|
||
|
|
features: [Proxy]
|
||
|
|
---*/
|
||
|
|
|
||
|
|
var log = "";
|
||
|
|
var object = { a: 0, b: 0, c: 0 };
|
||
|
|
var handler = {
|
||
|
|
get: function (target, propertyKey, receiver) {
|
||
|
|
throw new Test262Error('no values should be retrieved via [[Get]]');
|
||
|
|
},
|
||
|
|
getOwnPropertyDescriptor: function (target, propertyKey) {
|
||
|
|
assert.sameValue(target, object, "getOwnPropertyDescriptor");
|
||
|
|
log += "|getOwnPropertyDescriptor:" + propertyKey;
|
||
|
|
return Object.getOwnPropertyDescriptor(target, propertyKey);
|
||
|
|
},
|
||
|
|
ownKeys: function (target) {
|
||
|
|
assert.sameValue(target, object, "ownKeys");
|
||
|
|
log += "|ownKeys";
|
||
|
|
return Object.getOwnPropertyNames(target);
|
||
|
|
},
|
||
|
|
deleteProperty: function (oTarget, sKey) {
|
||
|
|
throw new Test262Error('properties should not be deleted');
|
||
|
|
},
|
||
|
|
defineProperty: function (oTarget, sKey, oDesc) {
|
||
|
|
throw new Test262Error('properties should not be defined');
|
||
|
|
},
|
||
|
|
set: function (oTarget, sKey, vValue) {
|
||
|
|
throw new Test262Error('properties should not be assigned');
|
||
|
|
}
|
||
|
|
};
|
||
|
|
var check = {
|
||
|
|
get: function (target, propertyKey, receiver) {
|
||
|
|
assert(propertyKey in target, "handler check: " + propertyKey);
|
||
|
|
return target[propertyKey];
|
||
|
|
}
|
||
|
|
};
|
||
|
|
var proxy = new Proxy(object, new Proxy(handler, check));
|
||
|
|
var result = Object.getOwnPropertyDescriptors(proxy);
|
||
|
|
assert.sameValue(log, "|ownKeys|getOwnPropertyDescriptor:a|getOwnPropertyDescriptor:b|getOwnPropertyDescriptor:c", log);
|