Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1 | // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | function assertIteratorResult(value, done, result) { |
| 6 | assertEquals({value: value, done: done}, result); |
| 7 | } |
| 8 | |
| 9 | function test(f) { |
| 10 | var cdesc = Object.getOwnPropertyDescriptor(f, "caller"); |
| 11 | var adesc = Object.getOwnPropertyDescriptor(f, "arguments"); |
| 12 | |
| 13 | assertFalse(cdesc.enumerable); |
| 14 | assertFalse(cdesc.configurable); |
| 15 | |
| 16 | assertFalse(adesc.enumerable); |
| 17 | assertFalse(adesc.configurable); |
| 18 | |
| 19 | assertSame(cdesc.get, cdesc.set); |
| 20 | assertSame(cdesc.get, adesc.get); |
| 21 | assertSame(cdesc.get, adesc.set); |
| 22 | |
| 23 | assertTrue(cdesc.get instanceof Function); |
| 24 | assertEquals(0, cdesc.get.length); |
| 25 | assertThrows(cdesc.get, TypeError); |
| 26 | |
| 27 | assertThrows(function() { return f.caller; }, TypeError); |
| 28 | assertThrows(function() { f.caller = 42; }, TypeError); |
| 29 | assertThrows(function() { return f.arguments; }, TypeError); |
| 30 | assertThrows(function() { f.arguments = 42; }, TypeError); |
| 31 | } |
| 32 | |
| 33 | function *sloppy() { test(sloppy); } |
| 34 | function *strict() { "use strict"; test(strict); } |
| 35 | |
| 36 | test(sloppy); |
| 37 | test(strict); |
| 38 | |
| 39 | assertIteratorResult(undefined, true, sloppy().next()); |
| 40 | assertIteratorResult(undefined, true, strict().next()); |