tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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head-await-using-init.js (864B)

      1 // |reftest| shell-option(--enable-explicit-resource-management) skip-if(!(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration('explicit-resource-management'))||!xulRuntime.shell) error:SyntaxError -- explicit-resource-management is not enabled unconditionally, requires shell-options
      2 // Copyright (C) 2023 Ron Buckton. All rights reserved.
      3 // This code is governed by the BSD license found in the LICENSE file.
      4 
      5 /*---
      6 esid: sec-for-in-and-for-of-statements
      7 description: >
      8  ForDeclaration containing 'await using' does not support an initializer
      9 info: |
     10  IterationStatement:
     11    for (ForDeclaration of AssignmentExpression) Statement
     12 negative:
     13  phase: parse
     14  type: SyntaxError
     15 features: [explicit-resource-management]
     16 ---*/
     17 
     18 $DONOTEVALUATE();
     19 
     20 const obj = { [Symbol.dispose]() { } };
     21 async function f() {
     22  for (await using x = obj of []) {}
     23 }