// |reftest| shell-option(--enable-explicit-resource-management) skip-if(!(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration('explicit-resource-management'))||!xulRuntime.shell) module -- explicit-resource-management is not enabled unconditionally, requires shell-options // Copyright (C) 2023 Ron Buckton. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-let-const-using-and-await-using-declarations description: > module and block scope using flags: [module] features: [explicit-resource-management] ---*/ using z = null; // Block local { using z = undefined; } assert.sameValue(z, null); if (true) { const obj = { [Symbol.dispose]() { } }; using z = obj; assert.sameValue(z, obj); } reportCompare(0, 0);