Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 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 |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | // Flags: --allow-natives-syntax |
| 6 | |
| 7 | function receiver() { |
| 8 | return this; |
| 9 | } |
| 10 | |
| 11 | function construct(f) { |
| 12 | "use strict"; |
| 13 | class B {} |
| 14 | class C extends B { |
| 15 | bar() { return super.foo() } |
| 16 | } |
| 17 | B.prototype.foo = f; |
| 18 | return new C(); |
| 19 | } |
| 20 | |
| 21 | function check(x, value, type) { |
| 22 | assertEquals("object", typeof x); |
| 23 | assertInstanceof(x, type); |
| 24 | assertEquals(value, x); |
| 25 | } |
| 26 | |
| 27 | var o = construct(receiver); |
| 28 | check(o.bar.call(123), Object(123), Number); |
| 29 | check(o.bar.call("a"), Object("a"), String); |
| 30 | check(o.bar.call(undefined), this, Object); |
| 31 | check(o.bar.call(null), this, Object); |
| 32 | |
| 33 | %OptimizeFunctionOnNextCall(o.bar); |
| 34 | check(o.bar.call(456), Object(456), Number); |
| 35 | check(o.bar.call("b"), Object("b"), String); |
| 36 | check(o.bar.call(undefined), this, Object); |
| 37 | check(o.bar.call(null), this, Object); |