thunkify-wrap

thunkify-wrap

Turn each node function in an object return a thunk. Turn a regular node function into one which returns a thunk, useful for generator-based flow control such as co.

Installation

Example

// the same as thunkify
var thunkify = require('thunkify-wrap');
var fs = require('fs');

fs.readFile = thunkify(fs.readFile);

fs.readFile('package.json', 'utf8')(function(err, str){

});

// thunkfiy an object
var user = {
  add: function () {},
  show: function () {},
  list: function () {}
}

module.exports = thunkify(user);

ctx

also you can pass ctx as contenxt into thunkify, and thunkify(object) will use object as the context by default.

var thunkify = require('thunkify-wrap');
var Cal = function (a, b) {
  this.a = a;
  this.b = b;
};

Cal.prototype.plus = function(callback) {
  var self = this;
  setTimeout(function () {
    callback(null, self.a + self.b);
  }, 5);
};

Cal.prototype.minus = function (callback) {
  var self = this;
  setTimeout(function () {
    callback(null, self.a - self.b);
  }, 5);
};

module.exports = Cal;

exports.create1 = function (a, b) {
  return thunkify(new Cal(a, b));
};

// or
exports.create2 = function (a, b) {
  var cal = new Cal(a, b);
  cal.plus = thunkify(cal.plus, cal);
  cal.minus = thunkify(cal.minus, cal);
};

License

MIT