test262/test/language/module-code/early-dup-lex.js

19 lines
455 B
JavaScript

// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-module-semantics-static-semantics-early-errors
description: >
It is a Syntax Error if the LexicallyDeclaredNames of ModuleItemList
contains any duplicate entries.
flags: [module]
features: [let, const]
negative:
phase: parse
type: SyntaxError
---*/
$DONOTEVALUATE();
let x;
const x = 0;