| // Copyright (C) 2016 Rick Waldron. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| author: Rick Waldron |
| esid: sec-assignment-operators-runtime-semantics-evaluation |
| description: Compound Exponentiation Assignment Operator |
| info: | |
| AssignmentExpression: |
| LeftHandSideExpression AssignmentOperator AssignmentExpression |
| |
| 1. Let lref be the result of evaluating LeftHandSideExpression. |
| 2. Let lval be ? GetValue(lref). |
| 3. Let rref be the result of evaluating AssignmentExpression. |
| 4. Let rval be ? GetValue(rref). |
| 5. Let op be the @ where AssignmentOperator is @=. |
| 6. Let r be the result of applying op to lval and rval as if evaluating the expression lval op rval. |
| 7. Perform ? PutValue(lref, r). |
| 8. Return r. |
| |
| ---*/ |
| |
| var base = -3; |
| |
| assert.sameValue(base **= 3, -27, "(base **= 3) === -27; where base is -3"); |
