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// |reftest| error:SyntaxError
'use strict';
// Copyright (C) 2020 Rick Waldron. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-assignment-operators
description: >
Strict Mode - SyntaxError is thrown if the identifier arguments
appear as the LeftHandSideExpression of a Logical Assignment
operator(??=)
flags: [onlyStrict]
negative:
phase: parse
type: SyntaxError
features: [logical-assignment-operators]
---*/
$DONOTEVALUATE();
arguments ??= 20;