diff options
Diffstat (limited to 'node_modules/universalify/index.js')
-rw-r--r-- | node_modules/universalify/index.js | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/node_modules/universalify/index.js b/node_modules/universalify/index.js new file mode 100644 index 0000000..0c9ba39 --- /dev/null +++ b/node_modules/universalify/index.js @@ -0,0 +1,25 @@ +'use strict' + +exports.fromCallback = function (fn) { + return Object.defineProperty(function () { + if (typeof arguments[arguments.length - 1] === 'function') fn.apply(this, arguments) + else { + return new Promise((resolve, reject) => { + arguments[arguments.length] = (err, res) => { + if (err) return reject(err) + resolve(res) + } + arguments.length++ + fn.apply(this, arguments) + }) + } + }, 'name', { value: fn.name }) +} + +exports.fromPromise = function (fn) { + return Object.defineProperty(function () { + const cb = arguments[arguments.length - 1] + if (typeof cb !== 'function') return fn.apply(this, arguments) + else fn.apply(this, arguments).then(r => cb(null, r), cb) + }, 'name', { value: fn.name }) +} |