| // 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 And 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. Let lbool be ! ToBoolean(lval). |
| 4. If lbool is false, return lval. |
| 5. Let rref be the result of evaluating AssignmentExpression. |
| 6. Let rval be ? GetValue(rref). |
| 7. Perform ? PutValue(lref, rval). |
| 8. Return rval. |
| |
| ---*/ |
| |
| var value = 0n; |
| assert.sameValue(value &&= 1n, 0n, "(value &&= 1n) === 0n; where value = 0n"); |
| |
| value = 2n; |
| assert.sameValue(value &&= 1n, 1n, "(value &&= 1n) === 1n; where value = 2n"); |