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24 lines
712 B
24 lines
712 B
'use strict' |
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exports.fromCallback = function (fn) { |
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return Object.defineProperty(function (...args) { |
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if (typeof args[args.length - 1] === 'function') fn.apply(this, args) |
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else { |
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return new Promise((resolve, reject) => { |
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fn.call( |
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this, |
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...args, |
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(err, res) => (err != null) ? reject(err) : resolve(res) |
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) |
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}) |
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} |
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}, 'name', { value: fn.name }) |
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} |
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exports.fromPromise = function (fn) { |
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return Object.defineProperty(function (...args) { |
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const cb = args[args.length - 1] |
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if (typeof cb !== 'function') return fn.apply(this, args) |
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else fn.apply(this, args.slice(0, -1)).then(r => cb(null, r), cb) |
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}, 'name', { value: fn.name }) |
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}
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