test262/test/language/expressions/yield/captured-free-vars.js

37 lines
1020 B
JavaScript

// 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: >
Free variables captured within the GeneratorFunction closure are valid
yield expression operands.
features: [generators]
---*/
var a = 1;
var b = 2;
var c = 3;
function* g() {
yield a;
yield b;
yield c;
}
var iter = g();
var result;
result = iter.next();
assert.sameValue(result.value, 1, 'First result `value`');
assert.sameValue(result.done, false, 'First result `done` flag');
result = iter.next();
assert.sameValue(result.value, 2, 'Second result `value`');
assert.sameValue(result.done, false, 'Second result `done` flag');
result = iter.next();
assert.sameValue(result.value, 3, 'Third result `value`');
assert.sameValue(result.done, false, 'Third result `done` flag');
result = iter.next();
assert.sameValue(result.value, undefined, 'Final result `value`');
assert.sameValue(result.done, true, 'Final result `done` flag');