duplicate-__proto__.js

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

// Async arrow function parameters.

async ({__proto__: a, __proto__: b}) => {};

// Async arrow function parameters with defaults (initially parsed as destructuring assignment).

async ({__proto__: a, __proto__: b} = {}) => {};

// Duplicate __proto__ in CoverCallExpressionAndAsyncArrowHead, but not AsyncArrowHead.

assertThrowsInstanceOf(() => eval(`

    NotAsync({__proto__: a, __proto__: b});

`), SyntaxError);

// Starts with "async", but not called from AssignmentExpression.

assertThrowsInstanceOf(() => eval(`

    typeof async({__proto__: a, __proto__: b});

`), SyntaxError);

if (typeof reportCompare === "function")

    reportCompare(0, 0);