tor-browser

The Tor Browser
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exp-assignment-operator.js (947B)

      1 // Copyright (C) 2016 Rick Waldron. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 author: Rick Waldron
      6 esid: sec-assignment-operators-runtime-semantics-evaluation
      7 description: Compound Exponentiation Assignment Operator
      8 info: |
      9    AssignmentExpression:
     10      LeftHandSideExpression AssignmentOperator AssignmentExpression
     11 
     12    1. Let lref be the result of evaluating LeftHandSideExpression.
     13    2. Let lval be ? GetValue(lref).
     14    3. Let rref be the result of evaluating AssignmentExpression.
     15    4. Let rval be ? GetValue(rref).
     16    5. Let op be the @ where AssignmentOperator is @=.
     17    6. Let r be the result of applying op to lval and rval as if evaluating the expression lval op rval.
     18    7. Perform ? PutValue(lref, r).
     19    8. Return r.
     20 features: [exponentiation]
     21 ---*/
     22 
     23 var base = -3;
     24 
     25 assert.sameValue(base **= 3, -27, "(base **= 3) === -27; where base is -3");
     26 
     27 reportCompare(0, 0);