diff options
Diffstat (limited to 'node_modules/pify/index.js')
-rw-r--r-- | node_modules/pify/index.js | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/node_modules/pify/index.js b/node_modules/pify/index.js new file mode 100644 index 0000000..1dee43a --- /dev/null +++ b/node_modules/pify/index.js @@ -0,0 +1,84 @@ +'use strict'; + +const processFn = (fn, opts) => function () { + const P = opts.promiseModule; + const args = new Array(arguments.length); + + for (let i = 0; i < arguments.length; i++) { + args[i] = arguments[i]; + } + + return new P((resolve, reject) => { + if (opts.errorFirst) { + args.push(function (err, result) { + if (opts.multiArgs) { + const results = new Array(arguments.length - 1); + + for (let i = 1; i < arguments.length; i++) { + results[i - 1] = arguments[i]; + } + + if (err) { + results.unshift(err); + reject(results); + } else { + resolve(results); + } + } else if (err) { + reject(err); + } else { + resolve(result); + } + }); + } else { + args.push(function (result) { + if (opts.multiArgs) { + const results = new Array(arguments.length - 1); + + for (let i = 0; i < arguments.length; i++) { + results[i] = arguments[i]; + } + + resolve(results); + } else { + resolve(result); + } + }); + } + + fn.apply(this, args); + }); +}; + +module.exports = (obj, opts) => { + opts = Object.assign({ + exclude: [/.+(Sync|Stream)$/], + errorFirst: true, + promiseModule: Promise + }, opts); + + const filter = key => { + const match = pattern => typeof pattern === 'string' ? key === pattern : pattern.test(key); + return opts.include ? opts.include.some(match) : !opts.exclude.some(match); + }; + + let ret; + if (typeof obj === 'function') { + ret = function () { + if (opts.excludeMain) { + return obj.apply(this, arguments); + } + + return processFn(obj, opts).apply(this, arguments); + }; + } else { + ret = Object.create(Object.getPrototypeOf(obj)); + } + + for (const key in obj) { // eslint-disable-line guard-for-in + const x = obj[key]; + ret[key] = typeof x === 'function' && filter(key) ? processFn(x, opts) : x; + } + + return ret; +}; |