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// Copyright (c) 2020 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-assignment-operators-runtime-semantics-evaluation
description: Logical Nullish Assignment Operator
features: [BigInt, logical-assignment-operators]
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.
4. Let rref be the result of evaluating AssignmentExpression.
5. Let rval be ? GetValue(rref).
6. Perform ? PutValue(lref, rval).
7. Return rval.
---*/
var value = 0n;
assert.sameValue(value ??= 1n, 0n, "(value ??= 1n) === 0n; where value = 0n");
value = 2n;
assert.sameValue(value ??= 1n, 2n, "(value ??= 1n) === 2n; where value = 2n");
reportCompare(0, 0);