tor-browser

The Tor Browser
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bigint-negative-exponent-throws.js (960B)

      1 // Copyright (C) 2017 Robin Templeton. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 /*---
      4 description: If the BigInt exponent is < 0, throw a RangeError exception
      5 esid: sec-exp-operator-runtime-semantics-evaluation
      6 info: |
      7  ExponentiationExpression: UpdateExpression ** ExponentiationExpression
      8 
      9  ...
     10  9. Return ? Type(base)::exponentiate(base, exponent).
     11 
     12  BigInt::exponentiate (base, exponent)
     13 
     14  1. If exponent < 0, throw a RangeError exception.
     15  ...
     16 features: [BigInt, exponentiation]
     17 ---*/
     18 assert.throws(RangeError, function() {
     19  1n ** -1n;
     20 }, '1n ** -1n throws RangeError');
     21 
     22 assert.throws(RangeError, function() {
     23  0n ** -1n;
     24 }, '0n ** -1n throws RangeError');
     25 
     26 assert.throws(RangeError, function() {
     27  (-1n) ** -1n;
     28 }, '(-1n) ** -1n throws RangeError');
     29 
     30 assert.throws(RangeError, function() {
     31  1n ** -100000000000000000n;
     32 }, '1n ** -100000000000000000n throws RangeError');
     33 
     34 reportCompare(0, 0);