tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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head-using-init.js (870B)

      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 esid: sec-iteration-statements
      6 description: >
      7  ForDeclaration containing 'using' does not allow initializer.
      8 info: |
      9  IterationStatement:
     10    for await (ForDeclaration of AssignmentExpression) Statement
     11 negative:
     12  phase: parse
     13  type: SyntaxError
     14 features: [async-iteration, explicit-resource-management]
     15 ---*/
     16 
     17 $DONOTEVALUATE();
     18 
     19 async function fn() {
     20  const obj = { [Symbol.dispose]() {} };
     21  for await (using x = obj of []) {}
     22 }