test262/test/language/statements/for-in/head-const-bound-names-in-s...

20 lines
551 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: The body may not re-declare variables declared in the head
negative:
phase: early
type: SyntaxError
info: |
It is a Syntax Error if any element of the BoundNames of ForDeclaration
also occurs in the VarDeclaredNames of Statement.
esid: sec-for-in-and-for-of-statements
es6id: 13.7.5
---*/
throw "Test262: This statement should not be evaluated.";
for (const x in {}) {
var x;
}