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25 lines
777 B
25 lines
777 B
'use strict' |
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exports.fromCallback = function (fn) { |
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return Object.defineProperty(function () { |
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if (typeof arguments[arguments.length - 1] === 'function') fn.apply(this, arguments) |
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else { |
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return new Promise((resolve, reject) => { |
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arguments[arguments.length] = (err, res) => { |
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if (err) return reject(err) |
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resolve(res) |
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} |
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arguments.length++ |
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fn.apply(this, arguments) |
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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 () { |
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const cb = arguments[arguments.length - 1] |
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if (typeof cb !== 'function') return fn.apply(this, arguments) |
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else fn.apply(this, arguments).then(r => cb(null, r), cb) |
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}, 'name', { value: fn.name }) |
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}
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