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// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-assignment-operators-runtime-semantics-evaluation
description: >
??= doesn't special-case [[IsHTMLDDA]] object; rval is not evaluated.
info: |
AssignmentExpression : LeftHandSideExpression ??= AssignmentExpression
1. Let lref be the result of evaluating LeftHandSideExpression.
2. Let lval be ? GetValue(lref).
3. If lval is neither undefined nor null, return lval.
features: [IsHTMLDDA, logical-assignment-operators]
---*/
var IsHTMLDDA = $262.IsHTMLDDA;
var value = IsHTMLDDA;
assert.sameValue(value ??= unresolved, IsHTMLDDA);
assert.sameValue(value, IsHTMLDDA);
reportCompare(0, 0);