tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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cannot-suspend-throws.js (1078B)

      1 // |reftest| skip-if(xulRuntime.shell||!this.hasOwnProperty('Atomics')||!this.hasOwnProperty('SharedArrayBuffer')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration('arm64-simulator'))) -- shell can block main thread, 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  Atomics.wait throws if agent cannot be suspended, CanBlock is false
      9 info: |
     10  Assuming [[CanBlock]] is false for the main host.
     11 
     12  Atomics.wait( typedArray, index, value, timeout )
     13 
     14  ... (after args validation)
     15  6. Let B be AgentCanSuspend().
     16  7. If B is false, throw a TypeError exception.
     17  ...
     18 features: [Atomics, SharedArrayBuffer, TypedArray]
     19 flags: [CanBlockIsFalse]
     20 ---*/
     21 
     22 const i32a = new Int32Array(
     23  new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
     24 );
     25 
     26 assert.throws(TypeError, function() {
     27  Atomics.wait(i32a, 0, 0, 0);
     28 });
     29 
     30 reportCompare(0, 0);