tor-browser

The Tor Browser
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symbol-for-index-throws.js (1876B)

      1 // |reftest| skip-if(!this.hasOwnProperty('Atomics')||!this.hasOwnProperty('SharedArrayBuffer')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration('arm64-simulator'))) -- Atomics,SharedArrayBuffer is not enabled unconditionally, ARM64 Simulator cannot emulate atomics
      2 // Copyright (C) 2018 Amal Hussein. All rights reserved.
      3 // This code is governed by the BSD license found in the LICENSE file.
      4 
      5 /*---
      6 esid: sec-atomics.wait
      7 description: >
      8  Throws a TypeError if index arg can not be converted to an Integer
      9 info: |
     10  Atomics.wait( typedArray, index, value, timeout )
     11 
     12  2. Let i be ? ValidateAtomicAccess(typedArray, index).
     13 
     14  ValidateAtomicAccess( typedArray, requestIndex )
     15 
     16  2. Let accessIndex be ? ToIndex(requestIndex).
     17 
     18  ToIndex ( value )
     19 
     20  2. Else,
     21    a. Let integerIndex be ? ToInteger(value).
     22 
     23  ToInteger(value)
     24 
     25  1. Let number be ? ToNumber(argument).
     26 
     27    Symbol --> Throw a TypeError exception.
     28 
     29 features: [Atomics, SharedArrayBuffer, Symbol, Symbol.toPrimitive, TypedArray]
     30 ---*/
     31 
     32 const i32a = new Int32Array(
     33  new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
     34 );
     35 
     36 const poisonedValueOf = {
     37  valueOf: function() {
     38    throw new Test262Error('should not evaluate this code');
     39  }
     40 };
     41 
     42 const poisonedToPrimitive = {
     43  [Symbol.toPrimitive]: function() {
     44    throw new Test262Error('should not evaluate this code');
     45  }
     46 };
     47 
     48 assert.throws(Test262Error, function() {
     49  Atomics.wait(i32a, poisonedValueOf, poisonedValueOf, poisonedValueOf);
     50 });
     51 
     52 assert.throws(Test262Error, function() {
     53  Atomics.wait(i32a, poisonedToPrimitive, poisonedToPrimitive, poisonedToPrimitive);
     54 });
     55 
     56 assert.throws(TypeError, function() {
     57  Atomics.wait(i32a, Symbol('foo'), poisonedValueOf, poisonedValueOf);
     58 });
     59 
     60 assert.throws(TypeError, function() {
     61  Atomics.wait(i32a, Symbol('foo'), poisonedToPrimitive, poisonedToPrimitive);
     62 });
     63 
     64 reportCompare(0, 0);