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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-performeval
description: >
Direct eval code creates `const` bindings prior to evaluation but does not
initialize them.
info: |
[...]
14. For each element d in lexDeclarations do
a. NOTE Lexically declared names are only instantiated here but not
initialized.
b. For each element dn of the BoundNames of d do
i. If IsConstantDeclaration of d is true, then
1. Perform ? lexEnvRec.CreateImmutableBinding(dn, true).
ii. Else,
2. Perform ? lexEnvRec.CreateMutableBinding(dn, false).
[...]
features: [const]
---*/
assert.throws(ReferenceError, function() {
eval('typeof x; const x = null;');
});
|
