'use strict'; // The Node team wants to deprecate `process.bind(...)`. // https://github.com/nodejs/node/pull/2768 // // However, we need the 'uv' binding for errname support. // This is a defensive wrapper around it so `execa` will not fail entirely if it stops working someday. // // If this ever stops working. See: https://github.com/sindresorhus/execa/issues/31#issuecomment-215939939 for another possible solution. let uv; try { uv = process.binding('uv'); if (typeof uv.errname !== 'function') { throw new TypeError('uv.errname is not a function'); } } catch (err) { console.error('execa/lib/errname: unable to establish process.binding(\'uv\')', err); uv = null; } function errname(uv, code) { if (uv) { return uv.errname(code); } if (!(code < 0)) { throw new Error('err >= 0'); } return `Unknown system error ${code}`; } module.exports = code => errname(uv, code); // Used for testing the fallback behavior module.exports.__test__ = errname;