| // Copyright (C) 2014 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| es6id: 14.5 |
| description: > |
| class side effect in extends |
| ---*/ |
| var calls = 0; |
| class C {} |
| class D extends (calls++, C) {} |
| assert.sameValue(calls, 1, "The value of `calls` is `1`"); |
| assert.sameValue(typeof D, 'function', "`typeof D` is `'function'`"); |
| assert.sameValue(Object.getPrototypeOf(D), C, "`Object.getPrototypeOf(D)` returns `C`"); |
| assert.sameValue( |
| C.prototype, |
| Object.getPrototypeOf(D.prototype), |
| "The value of `C.prototype` is `Object.getPrototypeOf(D.prototype)`" |
| ); |