tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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symbol-for-timeout-throws-agent.js (2518B)

      1 // |reftest| shell-option(--setpref=atomics_wait_async) skip-if(!this.hasOwnProperty('SharedArrayBuffer')||!this.hasOwnProperty('Atomics')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration('arm64-simulator'))||!xulRuntime.shell) async -- SharedArrayBuffer,Atomics is not enabled unconditionally, ARM64 Simulator cannot emulate atomics, requires shell-options
      2 // Copyright (C) 2020 Rick Waldron. All rights reserved.
      3 // This code is governed by the BSD license found in the LICENSE file.
      4 /*---
      5 esid: sec-atomics.waitasync
      6 description: >
      7  Throws a TypeError if index arg can not be converted to an Integer
      8 info: |
      9  Atomics.waitAsync( typedArray, index, value, timeout )
     10 
     11  1. Return DoWait(async, typedArray, index, value, timeout).
     12 
     13  DoWait ( mode, typedArray, index, value, timeout )
     14 
     15  6. Let q be ? ToNumber(timeout).
     16 
     17    Symbol --> Throw a TypeError exception.
     18 
     19 flags: [async]
     20 includes: [atomicsHelper.js]
     21 features: [Atomics.waitAsync, SharedArrayBuffer, Symbol, Symbol.toPrimitive, TypedArray, Atomics, BigInt, arrow-function, async-functions]
     22 ---*/
     23 assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"');
     24 const RUNNING = 1;
     25 
     26 $262.agent.start(`
     27  $262.agent.receiveBroadcast(function(sab) {
     28    const i64a = new BigInt64Array(sab);
     29    Atomics.add(i64a, ${RUNNING}, 1n);
     30 
     31    let status1 = '';
     32    let status2 = '';
     33 
     34    try {
     35      Atomics.waitAsync(i64a, 0, 0n, Symbol('1'));
     36    } catch (error) {
     37      status1 = 'A ' + error.name;
     38    }
     39    try {
     40      Atomics.waitAsync(i64a, 0, 0n, Symbol('2'));
     41    } catch (error) {
     42      status2 = 'B ' + error.name;
     43    }
     44 
     45    $262.agent.report(status1);
     46    $262.agent.report(status2);
     47    $262.agent.leaving();
     48  });
     49 `);
     50 
     51 const i64a = new BigInt64Array(new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4));
     52 
     53 $262.agent.safeBroadcastAsync(i64a, RUNNING, 1n).then(async agentCount => {
     54  assert.sameValue(agentCount, 1n, 'The value of `agentCount` is 1n');
     55 
     56  assert.sameValue(
     57    await $262.agent.getReportAsync(),
     58    'A TypeError',
     59    '(await $262.agent.getReportAsync()) resolves to the value "A TypeError"'
     60  );
     61 
     62  assert.sameValue(
     63    await $262.agent.getReportAsync(),
     64    'B TypeError',
     65    '(await $262.agent.getReportAsync()) resolves to the value "B TypeError"'
     66  );
     67 
     68  assert.sameValue(
     69    Atomics.notify(i64a, 0),
     70    0,
     71    'Atomics.notify(new BigInt64Array(new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4)), 0) must return 0'
     72  );
     73 }).then($DONE, $DONE);