concur.js

/**
 * Concur 0.3.0 - https://github.com/insin/concur
 * MIT Licensed
 */
!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.Concur=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
'use strict';

var hasOwn = Object.prototype.hasOwnProperty
var toString = Object.prototype.toString

function type(obj) {
  return toString.call(obj).slice(8, -1).toLowerCase()
}

function inherits(childConstructor, parentConstructor) {
  var F = function() {}
  F.prototype = parentConstructor.prototype
  childConstructor.prototype = new F()
  childConstructor.prototype.constructor = childConstructor
  return childConstructor
}

function extend(dest, src) {
  for (var prop in src) {
    if (hasOwn.call(src, prop)) {
      dest[prop] = src[prop]
    }
  }
  return dest
}

/**
 * Mixes in properties from one object to another. If the source object is a
 * Function, its prototype is mixed in instead.
 */
function mixin(dest, src) {
  if (type(src) == 'function') {
    extend(dest, src.prototype)
  }
  else {
    extend(dest, src)
  }
}

/**
 * Applies mixins specified as a __mixins__ property on the given properties
 * object, returning an object containing the mixed in properties.
 */
function applyMixins(properties) {
  var mixins = properties.__mixins__
  if (type(mixins) != 'array') {
    mixins = [mixins]
  }
  var mixedProperties = {}
  for (var i = 0, l = mixins.length; i < l; i++) {
    mixin(mixedProperties, mixins[i])
  }
  delete properties.__mixins__
  return extend(mixedProperties, properties)
}

/**
 * Inherits another constructor's prototype and sets its prototype and
 * constructor properties in one fell swoop.
 *
 * If a child constructor is not provided via prototypeProps.constructor,
 * a new constructor will be created.
 */
function inheritFrom(parentConstructor, childConstructor, prototypeProps, constructorProps) {
  // Create a child constructor if one wasn't given
  if (childConstructor == null) {
    childConstructor = function() {
      parentConstructor.apply(this, arguments)
    }
  }

  // Make sure the new prototype has the correct constructor set up
  prototypeProps.constructor = childConstructor

  // Base constructors should only have the properties they're defined with
  if (parentConstructor !== Concur) {
    // Inherit the parent's prototype
    inherits(childConstructor, parentConstructor)
    childConstructor.__super__ = parentConstructor.prototype
  }

  // Add prototype properties - this is why we took a copy of the child
  // constructor reference in extend() - if a .constructor had been passed as a
  // __mixins__ and overitten prototypeProps.constructor, these properties would
  // be getting set on the mixed-in constructor's prototype.
  extend(childConstructor.prototype, prototypeProps)

  // Add constructor properties
  extend(childConstructor, constructorProps)

  return childConstructor
}

/**
 * Namespace and dummy constructor for initial extension.
 */
var Concur = module.exports = function() {}

/**
 * Details of a constructor's inheritance chain - Concur just facilitates sugar
 * so we don't include it in the initial chain. Arguably, Object.prototype could
 * go here, but it's just not that interesting.
 */
Concur.__mro__ = []

/**
 * Creates or uses a child constructor to inherit from the the call
 * context, which is expected to be a constructor.
 */
Concur.extend = function(prototypeProps, constructorProps) {
  // Ensure we have prop objects to work with
  prototypeProps = prototypeProps || {}
  constructorProps = constructorProps || {}

  // If the constructor being inherited from has a __meta__ function somewhere
  // in its prototype chain, call it to customise prototype and constructor
  // properties before they're used to set up the new constructor's prototype.
  if (typeof this.prototype.__meta__ != 'undefined') {
    this.prototype.__meta__(prototypeProps, constructorProps)
  }

  // Any child constructor passed in should take precedence - grab a reference
  // to it befoer we apply any mixins.
  var childConstructor = (hasOwn.call(prototypeProps, 'constructor')
                          ? prototypeProps.constructor
                          : null)

  // If any mixins are specified, mix them into the property objects
  if (hasOwn.call(prototypeProps, '__mixins__')) {
    prototypeProps = applyMixins(prototypeProps)
  }
  if (hasOwn.call(constructorProps, '__mixins__')) {
    constructorProps = applyMixins(constructorProps)
  }

  // Set up the new child constructor and its prototype
  childConstructor = inheritFrom(this,
                                 childConstructor,
                                 prototypeProps,
                                 constructorProps)

  // Pass on the extend function for extension in turn
  childConstructor.extend = this.extend

  // Expose the inheritance chain for programmatic access
  childConstructor.__mro__ = [childConstructor].concat(this.__mro__)

  return childConstructor
}

},{}]},{},[1])(1)
});