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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 // | 4 // |
5 // Flags: --harmony-destructuring --harmony-computed-property-names | 5 // Flags: --harmony-destructuring |
6 // Flags: --harmony-arrow-functions --strong-mode --allow-natives-syntax | 6 // Flags: --harmony-arrow-functions --strong-mode --allow-natives-syntax |
7 | 7 |
8 (function() { | 8 (function() { |
9 function f({ x = function() { return []; } }) { "use strong"; return x(); } | 9 function f({ x = function() { return []; } }) { "use strong"; return x(); } |
10 var a = f({ x: undefined }); | 10 var a = f({ x: undefined }); |
11 assertTrue(%IsStrong(a)); | 11 assertTrue(%IsStrong(a)); |
12 | 12 |
13 // TODO(rossberg): Loading non-existent properties during destructuring should | 13 // TODO(rossberg): Loading non-existent properties during destructuring should |
14 // not throw in strong mode. | 14 // not throw in strong mode. |
15 assertThrows(function() { f({}); }, TypeError); | 15 assertThrows(function() { f({}); }, TypeError); |
16 | 16 |
17 function weakf({ x = function() { return []; } }) { return x(); } | 17 function weakf({ x = function() { return []; } }) { return x(); } |
18 a = weakf({}); | 18 a = weakf({}); |
19 assertFalse(%IsStrong(a)); | 19 assertFalse(%IsStrong(a)); |
20 | 20 |
21 function outerf() { return []; } | 21 function outerf() { return []; } |
22 function f2({ x = outerf }) { "use strong"; return x(); } | 22 function f2({ x = outerf }) { "use strong"; return x(); } |
23 a = f2({ x: undefined }); | 23 a = f2({ x: undefined }); |
24 assertFalse(%IsStrong(a)); | 24 assertFalse(%IsStrong(a)); |
25 })(); | 25 })(); |
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