early-dup-lex.js (493B)
1 // |reftest| error:SyntaxError module 2 // Copyright (C) 2015 the V8 project authors. All rights reserved. 3 // This code is governed by the BSD license found in the LICENSE file. 4 /*--- 5 esid: sec-module-semantics-static-semantics-early-errors 6 description: > 7 It is a Syntax Error if the LexicallyDeclaredNames of ModuleItemList 8 contains any duplicate entries. 9 flags: [module] 10 features: [let, const] 11 negative: 12 phase: parse 13 type: SyntaxError 14 ---*/ 15 16 $DONOTEVALUATE(); 17 18 let x; 19 const x = 0;