| // 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-static-semantics-early-errors | |
| info: | | |
| It is an early Syntax Error if AssignmentTargetType of | |
| LeftHandSideExpression is invalid or strict. | |
| description: Logical "??=" assignment with non-simple target | |
| negative: | |
| phase: parse | |
| type: SyntaxError | |
| features: [logical-assignment-operators] | |
| ---*/ | |
| $DONOTEVALUATE(); | |
| 1 ??= 1; |