v8/test/mjsunit/regress/regress-8241.js

// 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.

function f(x) { }
f(x=>x, [x,y] = [1,2]);
[parser] Validate destructuring assignment pattern in correct classifier Previously we'd first accumulate errors to the parent and validate the destructuring pattern in the parent. In the case of ParseArguments this will invalidly propagate binding pattern errors from one argument to the next. The reason why ParseArguments keeps track of binding pattern errors is because it could also be used to parse async arrow function parameters. If we see async(a,b) we don't yet know whether this is the head of an async arrow function, or a call to async with arguments a and b. Bug: v8:8241 Change-Id: I670ab9a9c6f2e0bee399808b02a465ae1afa7c3f Reviewed-on: https://chromium-review.googlesource.com/c/1296229 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/master@{#56887} 2018-10-23 08:45:34 +00:00			`// 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.`

			`function f(x) { }`
			`f(x=>x, [x,y] = [1,2]);`