chain-able
Version:
interfaces that describe their intentions.
291 lines (271 loc) • 22.4 kB
JavaScript
var Chainable = require('./Chainable')
var dopemerge = require('./deps/dopemerge')
var reduce = require('./deps/reduce')
var reduceEntries = require('./deps/reduce/entries')
var isFunction = require('./deps/is/function')
var ObjectKeys = require('./deps/util/keys')
var getMeta = require('./deps/meta')
var SHORTHANDS_KEY = require('./deps/meta/shorthands')
/**
* @desc ChainedMapBase composer
* @alias ComposeMap
* @type {Composer}
* @method compose
* @memberOf ChainedMapBase
*
* @param {Class | Object | Composable} [SuperClass=Chainable] class to extend
* @return {Class} ChainedMapBase
*
* @example
*
* const heh = class {}
* const composed = ChainedMapBase.compose(heh)
* const hehchain = new Composed()
* hehchain instanceof heh
* //=> true
*
*/
var CMC = function (SuperClass) {
/**
* @classdesc this is to avoid circular requires
* because MergeChain & MethodChain extend this
* yet .method & .merge use those chains
*
* @since 4.0.0-alpha.1
* @inheritdoc
* @class ChainedMapBase
* @member ChainedMapBase
* @category Chainable
* @extends {Chainable}
* @type {Chainable}
*
* @types ChainedMapBase
* @tests ChainedMap
*
* @prop {Meta} meta
* @prop {Map} store
*
* {@link https://ponyfoo.com/articles/es6-maps-in-depth pony-map}
* {@link https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Map mozilla-map}
* @see {@link pony-map}
* @see {@link mozilla-map}
*
* @see ChainedMap
* @see Chainable
* @see MergeChain
* @see MethodChain
* @see ChainedMap
*
*/
return (function (SuperClass) {
function ChainedMapBase(parent) {
SuperClass.call(this, parent)
this.store = new Map()
this.meta = getMeta(this)
}
if ( SuperClass ) ChainedMapBase.__proto__ = SuperClass;
ChainedMapBase.prototype = Object.create( SuperClass && SuperClass.prototype );
ChainedMapBase.prototype.constructor = ChainedMapBase;
/**
* @desc tap a value with a function
* @modifies this.store.get(name)
* @memberOf ChainedMapBase
* @since 0.7.0
* @since 4.0.0-alpha.1 <- moved from transform & shorthands
*
* @param {string | any} name key to `.get`
* @param {Function} fn function to tap with
* @return {Chain} @chainable
*
* {@link https://github.com/sindresorhus/awesome-tap awesome-tap}
* {@link https://github.com/midknight41/map-factory map-factory}
* {@link https://github.com/webpack/tapable tapable}
* @see {@link tapable}
*
* @see ChainedMapBase.set
* @see ChainedMapBase.get
*
* @example
*
* chain
* .set('moose', {eh: true})
* .tap('moose', moose => {moose.eh = false; return moose})
* .get('moose')
*
* // => {eh: false}
*
* @example
*
* const entries = new Chain()
* .set('str', 'emptyish')
* .tap('str', str => str + '+')
* .set('arr', [1])
* .tap('arr', arr => arr.concat([2]))
* .entries()
*
* //=> {str: 'emptyish+', arr: [1, 2]}
*
*/
ChainedMapBase.prototype.tap = function tap (name, fn) {
return this.set(name, fn(this.get(name), dopemerge))
};
/**
* @desc checks each property of the object
* calls the chains accordingly
*
* @memberOf ChainedMapBase
* @since 0.5.0
*
* @param {Object} obj object with functions to hydrate from
* @return {Chainable} @chainable
*
* @TODO could also add parsing stringified
*
* @example
*
* const from = new Chain().from({eh: true})
* const eh = new Chain().set('eh', true)
* eq(from, eh)
* // => true
*
*/
ChainedMapBase.prototype.from = function from (obj) {
var this$1 = this;
var keys = ObjectKeys(obj)
for (var k = 0; k < keys.length; k++) {
var key = keys[k]
var val = obj[key]
var fn = this$1[key]
if (fn && fn.merge) {
fn.merge(val)
}
else if (isFunction(fn)) {
fn.call(this$1, val)
}
else {
this$1.set(key, val)
}
}
return this
};
/**
* @desc shorthand methods, from strings to functions that call .set
* @since 0.4.0
* @memberOf ChainedMapBase
*
* @param {Array<string>} methods decorates/extends an object with new shorthand functions to get/set
* @return {ChainedMapBase} @chainable
*
* @example
*
* const chain1 = new Chain()
* chain1.extend(['eh'])
*
* const chain2 = new Chain()
* chain2.eh = val => this.set('eh', val)
*
* eq(chain2.eh, chain1.eh)
* //=> true
*
*/
ChainedMapBase.prototype.extend = function extend (methods) {
var this$1 = this;
methods.forEach(function (method) {
this$1.meta(SHORTHANDS_KEY, method)
this$1[method] = function (value) { return this$1.set(method, value); }
})
return this
};
/**
* @desc spreads the entries from ChainedMapBase.store (Map)
* return store.entries, plus all chain properties if they exist
* @memberOf ChainedMapBase
*
* @since 4.0.0 <- improved reducing
* @since 0.4.0
*
* @param {boolean} [chains=false] if true, returns all properties that are chains
* @return {Object}
*
* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/entries mozilla-map-entries}
* @see {@link mozilla-map-entries}
*
* @example
*
* map.set('a', 'alpha').set('b', 'beta').entries()
* //=> {a: 'alpha', b: 'beta'}
*
*/
ChainedMapBase.prototype.entries = function entries (chains) {
if ( chains === void 0 ) chains = false;
var reduced = reduce(this.store)
if (chains === false) { return reduced }
var reducer = reduceEntries(reduced)
reducer(this)
reducer(reduced)
return reduced
};
/**
* @desc get value for key path in the Map store
* ❗ `debug` is a special key and is *not* included into .store
* it goes onto .meta
*
* @memberOf ChainedMapBase
* @since 4.0.0 <- moved debug here
* @since 0.4.0
*
* @param {Primitive} key Primitive data key used as map property to reference the value
* @return {any} value in .store at key
*
* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/get mozilla-map-get}
* @see {@link mozilla-map-get}
*
* @example
*
* const chain = new Chain()
* chain.set('eh', true)
* chain.get('eh')
* //=> true
*
* chain.get('nope')
* //=> undefined
*
*/
ChainedMapBase.prototype.get = function get (key) {
if (key === 'debug') { return this.meta.debug }
return this.store.get(key)
};
/**
* @desc sets the value using the key on store
* adds or updates an element with a specified key and value
*
* @memberOf ChainedMapBase
* @since 0.4.0
*
* @param {Primitive} key Primitive to reference the value
* @param {any} value any data to store
* @return {ChainedMapBase} @chainable
*
* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/set mozilla-map-set}
* @see {@link mozilla-map-set}
* @see ChainedMapBase.store
*
* @example
*
* const chain = new Chain()
* chain.set('eh', true)
* chain.get('eh')
* //=> true
*
*/
ChainedMapBase.prototype.set = function set (key, value) {
this.store.set(key, value)
return this
};
return ChainedMapBase;
}(SuperClass))
}
var cmc = CMC(Chainable)
cmc.compose = CMC
module.exports = cmc
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"file":"ChainedMapBase.js","sources":["ChainedMapBase.js"],"sourcesContent":["const Chainable = require('./Chainable')\nconst dopemerge = require('./deps/dopemerge')\nconst reduce = require('./deps/reduce')\nconst reduceEntries = require('./deps/reduce/entries')\nconst isFunction = require('./deps/is/function')\nconst ObjectKeys = require('./deps/util/keys')\nconst getMeta = require('./deps/meta')\nconst SHORTHANDS_KEY = require('./deps/meta/shorthands')\n\n/**\n * @desc ChainedMapBase composer\n * @alias ComposeMap\n * @type {Composer}\n * @method compose\n * @memberOf ChainedMapBase\n *\n * @param {Class | Object | Composable} [SuperClass=Chainable] class to extend\n * @return {Class} ChainedMapBase\n *\n * @example\n *\n *    const heh = class {}\n *    const composed = ChainedMapBase.compose(heh)\n *    const hehchain = new Composed()\n *    hehchain instanceof heh\n *    //=> true\n *\n */\nconst CMC = SuperClass => {\n  /**\n   * @classdesc this is to avoid circular requires\n   *       because MergeChain & MethodChain extend this\n   *       yet .method & .merge use those chains\n   *\n   * @since 4.0.0-alpha.1\n   * @inheritdoc\n   * @class ChainedMapBase\n   * @member ChainedMapBase\n   * @category Chainable\n   * @extends {Chainable}\n   * @type {Chainable}\n   *\n   * @types ChainedMapBase\n   * @tests ChainedMap\n   *\n   * @prop {Meta} meta\n   * @prop {Map} store\n   *\n   * {@link https://ponyfoo.com/articles/es6-maps-in-depth pony-map}\n   * {@link https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Map mozilla-map}\n   * @see {@link pony-map}\n   * @see {@link mozilla-map}\n   *\n   * @see ChainedMap\n   * @see Chainable\n   * @see MergeChain\n   * @see MethodChain\n   * @see ChainedMap\n   *\n   */\n  return class ChainedMapBase extends SuperClass {\n    /**\n     * @param {ChainedMapBase | Chainable | ParentType | any} parent ParentType\n     * @constructor\n     *\n     * @example\n     *\n     *    class Eh extends ChainedMapBase {}\n     *    Object.keys(eh)\n     *    //=> ['store', 'meta']\n     *\n     */\n    constructor(parent) {\n      super(parent)\n\n      this.store = new Map()\n      this.meta = getMeta(this)\n    }\n\n    /**\n     * @desc   tap a value with a function\n     *         @modifies this.store.get(name)\n     * @memberOf ChainedMapBase\n     * @since 0.7.0\n     * @since 4.0.0-alpha.1 <- moved from transform & shorthands\n     *\n     * @param  {string | any} name key to `.get`\n     * @param  {Function} fn function to tap with\n     * @return {Chain} @chainable\n     *\n     * {@link https://github.com/sindresorhus/awesome-tap awesome-tap}\n     * {@link https://github.com/midknight41/map-factory map-factory}\n     * {@link https://github.com/webpack/tapable tapable}\n     * @see {@link tapable}\n     *\n     * @see ChainedMapBase.set\n     * @see ChainedMapBase.get\n     *\n     * @example\n     *\n     *    chain\n     *      .set('moose', {eh: true})\n     *      .tap('moose', moose => {moose.eh = false; return moose})\n     *      .get('moose')\n     *\n     *    // => {eh: false}\n     *\n     * @example\n     *\n     *   const entries = new Chain()\n     *     .set('str', 'emptyish')\n     *     .tap('str', str => str + '+')\n     *     .set('arr', [1])\n     *     .tap('arr', arr => arr.concat([2]))\n     *     .entries()\n     *\n     *   //=> {str: 'emptyish+', arr: [1, 2]}\n     *\n     */\n    tap(name, fn) {\n      return this.set(name, fn(this.get(name), dopemerge))\n    }\n\n    /**\n     * @desc checks each property of the object\n     *       calls the chains accordingly\n     *\n     * @memberOf ChainedMapBase\n     * @since 0.5.0\n     *\n     * @param {Object} obj object with functions to hydrate from\n     * @return {Chainable} @chainable\n     *\n     * @TODO could also add parsing stringified\n     *\n     * @example\n     *\n     *     const from = new Chain().from({eh: true})\n     *     const eh = new Chain().set('eh', true)\n     *     eq(from, eh)\n     *     // => true\n     *\n     */\n    from(obj) {\n      const keys = ObjectKeys(obj)\n\n      for (let k = 0; k < keys.length; k++) {\n        const key = keys[k]\n        const val = obj[key]\n        const fn = this[key]\n\n        if (fn && fn.merge) {\n          fn.merge(val)\n        }\n        else if (isFunction(fn)) {\n          fn.call(this, val)\n        }\n        else {\n          this.set(key, val)\n        }\n      }\n\n      return this\n    }\n\n    /**\n     * @desc shorthand methods, from strings to functions that call .set\n     * @since 0.4.0\n     * @memberOf ChainedMapBase\n     *\n     * @param  {Array<string>} methods decorates/extends an object with new shorthand functions to get/set\n     * @return {ChainedMapBase} @chainable\n     *\n     * @example\n     *\n     *    const chain1 = new Chain()\n     *    chain1.extend(['eh'])\n     *\n     *    const chain2 = new Chain()\n     *    chain2.eh = val => this.set('eh', val)\n     *\n     *    eq(chain2.eh, chain1.eh)\n     *    //=> true\n     *\n     */\n    extend(methods) {\n      methods.forEach(method => {\n        this.meta(SHORTHANDS_KEY, method)\n        this[method] = value => this.set(method, value)\n      })\n      return this\n    }\n\n    /**\n     * @desc spreads the entries from ChainedMapBase.store (Map)\n     *       return store.entries, plus all chain properties if they exist\n     * @memberOf ChainedMapBase\n     *\n     * @since 4.0.0 <- improved reducing\n     * @since 0.4.0\n     *\n     * @param  {boolean} [chains=false] if true, returns all properties that are chains\n     * @return {Object}\n     *\n     * {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/entries mozilla-map-entries}\n     * @see {@link mozilla-map-entries}\n     *\n     * @example\n     *\n     *    map.set('a', 'alpha').set('b', 'beta').entries()\n     *    //=> {a: 'alpha', b: 'beta'}\n     *\n     */\n    entries(chains = false) {\n      const reduced = reduce(this.store)\n      if (chains === false) return reduced\n\n      const reducer = reduceEntries(reduced)\n      reducer(this)\n      reducer(reduced)\n      return reduced\n    }\n\n    /**\n     * @desc get value for key path in the Map store\n     *       ❗ `debug` is a special key and is *not* included into .store\n     *          it goes onto .meta\n     *\n     * @memberOf ChainedMapBase\n     * @since 4.0.0 <- moved debug here\n     * @since 0.4.0\n     *\n     * @param  {Primitive} key Primitive data key used as map property to reference the value\n     * @return {any} value in .store at key\n     *\n     * {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/get mozilla-map-get}\n     * @see {@link mozilla-map-get}\n     *\n     * @example\n     *\n     *    const chain = new Chain()\n     *    chain.set('eh', true)\n     *    chain.get('eh')\n     *    //=> true\n     *\n     *    chain.get('nope')\n     *    //=> undefined\n     *\n     */\n    get(key) {\n      if (key === 'debug') return this.meta.debug\n      return this.store.get(key)\n    }\n\n    /**\n     * @desc sets the value using the key on store\n     *       adds or updates an element with a specified key and value\n     *\n     * @memberOf ChainedMapBase\n     * @since 0.4.0\n     *\n     * @param {Primitive} key Primitive to reference the value\n     * @param {any} value any data to store\n     * @return {ChainedMapBase} @chainable\n     *\n     * {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/set mozilla-map-set}\n     * @see {@link mozilla-map-set}\n     * @see ChainedMapBase.store\n     *\n     * @example\n     *\n     *    const chain = new Chain()\n     *    chain.set('eh', true)\n     *    chain.get('eh')\n     *    //=> true\n     *\n     */\n    set(key, value) {\n      this.store.set(key, value)\n      return this\n    }\n  }\n}\n\nconst cmc = CMC(Chainable)\ncmc.compose = CMC\n\nmodule.exports = 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