| // Copyright (C) 2013 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| es6id: 25.2 |
| description: > |
| When invoked via the function invocation pattern with multiple arguments, |
| the GeneratorFunction intrinsic creates a valid generator whose body is the |
| last argument evaluated as source code and whose formal parameters are |
| defined by the preceeding arguments. |
| features: [generators] |
| ---*/ |
| |
| var GeneratorFunction = Object.getPrototypeOf(function*() {}).constructor; |
| |
| var g = GeneratorFunction('x', 'y', 'yield x + y;'); |
| var iter = g(2, 3); |
| var result; |
| |
| result = iter.next(); |
| assert.sameValue(result.value, 5, 'First result `value`'); |
| assert.sameValue(result.done, false, 'First result `done` flag'); |
| |
| result = iter.next(); |
| assert.sameValue(result.value, undefined, 'Final result `value`'); |
| assert.sameValue(result.done, true, 'Final result `done` flag'); |