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| 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 // Flags: --harmony-generators |
| 6 |
| 7 function assertIteratorResult(value, done, result) { |
| 8 assertEquals({value: value, done: done}, result); |
| 9 } |
| 10 |
| 11 function test(f) { |
| 12 var cdesc = Object.getOwnPropertyDescriptor(f, "caller"); |
| 13 var adesc = Object.getOwnPropertyDescriptor(f, "arguments"); |
| 14 |
| 15 assertFalse(cdesc.enumerable); |
| 16 assertFalse(cdesc.configurable); |
| 17 |
| 18 assertFalse(adesc.enumerable); |
| 19 assertFalse(adesc.configurable); |
| 20 |
| 21 assertSame(cdesc.get, cdesc.set); |
| 22 assertSame(cdesc.get, adesc.get); |
| 23 assertSame(cdesc.get, adesc.set); |
| 24 |
| 25 assertTrue(cdesc.get instanceof Function); |
| 26 assertEquals(0, cdesc.get.length); |
| 27 assertThrows(cdesc.get, TypeError); |
| 28 |
| 29 assertThrows(function() { return f.caller; }, TypeError); |
| 30 assertThrows(function() { f.caller = 42; }, TypeError); |
| 31 assertThrows(function() { return f.arguments; }, TypeError); |
| 32 assertThrows(function() { f.arguments = 42; }, TypeError); |
| 33 } |
| 34 |
| 35 function *sloppy() { test(sloppy); } |
| 36 function *strict() { "use strict"; test(strict); } |
| 37 |
| 38 test(sloppy); |
| 39 test(strict); |
| 40 |
| 41 assertIteratorResult(undefined, true, sloppy().next()); |
| 42 assertIteratorResult(undefined, true, strict().next()); |
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