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18 lines
493 B
JavaScript
18 lines
493 B
JavaScript
// Copyright (C) 2020 Rick Waldron. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-assignment-operators-static-semantics-early-errors
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info: |
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It is an early Syntax Error if AssignmentTargetType of
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LeftHandSideExpression is invalid or strict.
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description: Logical "??=" assignment with non-simple target
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negative:
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phase: parse
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type: SyntaxError
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features: [logical-assignment-operators]
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---*/
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$DONOTEVALUATE();
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1 ??= 1;
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