test262/test/language/module-code/instn-local-bndng-export-ge...

33 lines
957 B
JavaScript

// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: >
Binding is created and initialized to `undefined` for exported generator
function declarations
esid: sec-moduledeclarationinstantiation
info: |
[...]
17. For each element d in lexDeclarations do
a. For each element dn of the BoundNames of d do
i. If IsConstantDeclaration of d is true, then
[...]
ii. Else,
1. Perform ! envRec.CreateMutableBinding(dn, false).
[...]
includes: [fnGlobalObject.js]
flags: [module]
---*/
var global = fnGlobalObject();
assert.sameValue(test262().next().value, 23, 'initialized value');
assert.sameValue(
Object.getOwnPropertyDescriptor(global, 'test262'), undefined
);
test262 = null;
assert.sameValue(test262, null, 'binding is mutable');
export function* test262() { return 23; }