v8/test/mjsunit/regress/regress-preparse-inner-arrow-duplicate-parameter.js
Toon Verwaest e874d6a3d0 [parser] Rewrite duplicate formal detection
Now duplicate parameter detection depends on tracking of unresolved references.
This also fixes finding duplicate parameters of arrow functions nested in other
arrow functions.

Change-Id: I644bfdc513244637345c1069e5c7e5fde713da63
Reviewed-on: https://chromium-review.googlesource.com/c/1270578
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56467}
2018-10-09 09:17:42 +00:00

6 lines
214 B
JavaScript

// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
assertThrows("()=>{ (x,x)=>1 }", SyntaxError)