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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-evaldeclarationinstantiation
description: Initialization of new variable binding
info: |
[...]
16. For each String vn in declaredVarNames, in list order do
a. If varEnvRec is a global Environment Record, then
[...]
b. Else,
i. Let bindingExists be varEnvRec.HasBinding(vn).
ii. If bindingExists is false, then
1. Let status be ! varEnvRec.CreateMutableBinding(vn, true).
2. Assert: status is not an abrupt completion because of
validation preceding step 12.
3. Perform ! varEnvRec.InitializeBinding(vn, undefined).
[...]
flags: [noStrict]
---*/
var initial = null;
var postAssignment;
(function() {
eval('initial = x; x = 4; postAssignment = x; var x;');
}());
assert.sameValue(initial, undefined);
assert.sameValue(postAssignment, 4, 'binding is mutable');
assert.throws(ReferenceError, function() {
x;
});
reportCompare(0, 0);
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