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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 26.1.6
description: >
Return value.
info: |
26.1.6 Reflect.get ( target, propertyKey [ , receiver ])
...
4. If receiver is not present, then
a. Let receiver be target.
5. Return target.[[Get]](key, receiver).
9.1.8 [[Get]] (P, Receiver)
...
2. Let desc be O.[[GetOwnProperty]](P).
3. ReturnIfAbrupt(desc).
4. If desc is undefined, then
a. Let parent be O.[[GetPrototypeOf]]().
b. ReturnIfAbrupt(parent).
c. If parent is null, return undefined.
d. Return parent.[[Get]](P, Receiver).
5. If IsDataDescriptor(desc) is true, return desc.[[Value]].
6. Otherwise, IsAccessorDescriptor(desc) must be true so, let getter be
desc.[[Get]].
7. If getter is undefined, return undefined.
8. Return Call(getter, Receiver).
---*/
var o = {};
o.p1 = 'value 1';
assert.sameValue(
Reflect.get(o, 'p1'), 'value 1',
'Return value from data descriptor'
);
Object.defineProperty(o, 'p2', {
get: undefined
});
assert.sameValue(
Reflect.get(o, 'p2'), undefined,
'Return undefined if getter is undefined'
);
Object.defineProperty(o, 'p3', {
get: function() {
return 'foo';
}
});
assert.sameValue(
Reflect.get(o, 'p3'), 'foo',
'Return Call(getter, Receiver)'
);
var o2 = Object.create({p: 42});
assert.sameValue(
Reflect.get(o2, 'p'), 42,
'Return value from prototype without own property.'
);
assert.sameValue(
Reflect.get(o2, 'u'), undefined,
'Return undefined without property on the object and its prototype'
);
|
