foop
Version:
interfaces that describe their intentions.
245 lines (224 loc) • 18.8 kB
JavaScript
var TraverseChain = require('../TraverseChain')
var curry = require('../deps/fp/curry')
var isObj = require('../deps/is/obj')
var isTrue = require('../deps/is/true')
var isFalsy = require('../deps/is/falsy')
var isUndefined = require('../deps/is/undefined')
var ObjectKeys = require('../deps/util/keys')
var dotPropPaths = require('../deps/dot/paths')
var TRANSFORMERS_KEY = require('../deps/meta/TRANSFORMERS_KEY')
var OBSERVERS_KEY = require('../deps/meta/OBSERVERS_KEY')
/**
* @param {Class | Composable} Target composable class
* @return {TransformChain} class
* @example
* compose(class {})
* //=> TransformChain
*/
module.exports = function (Target) {
var set = Target.prototype.set
/**
* @class TransformChain
* @member TransformChain
* @extends {ChainedMap}
* @memberOf compose
* @category Chainable
*
* @tests TransformChain
* @types TransformChain
*
* @symb 🤖
* @type {Map}
*
* @see deps/traverse
* @see TraverseChain
*
* {@link https://github.com/iluwatar/java-design-patterns/tree/master/state state-pattern}
* {@link https://github.com/iluwatar/java-design-patterns/tree/master/strategy strategy-pattern}
*/
// class Transform extends Target
// -------------------------------------------
/**
* @desc traverse `this`, or `this.entries`
* @since 1.0.2
*
* @param {boolean | traversable} [useThis=false] use the instance properties that are `mapish` as well
* @return {TraverseChain} @chainable
*
* @see TraverseChain
* @see js-traverse
*
* @example
* TAKE FROM TRAVERSECHAIN
*/
Target.prototype.traverse = function traverseChain(useThis) {
/* prettier-ignore */
return new TraverseChain(this)
.obj(
// @NOTE
// defaultTo(false, useThis)
// defaulting arg to false is shorter
// & faster than void 0 inline checks
// that mutate arguments (when transpiled)
isFalsy(useThis)
? this.entries(true)
: isTrue(useThis)
? this
: useThis
// isFalse(useThis)
// ? this.entries(true)
// : isTrue(useThis)
// ? this
// : useThis
)
}
/**
* @since 1.0.2
* @memberOf TransformChain
*
* @param {string | Function} key currently just string
* @param {Function} value callback accepting the value as only arg to transform with
* @return {TransformChain} @chainable
*
* @TODO dot-prop here
*
* @example
*
* // coerce values with .id into the value they hold
* chain
* .transform('dis', val => (typeof val === 'string' ? val : val.id))
*
* chain.set('dis', 'eh')
* chain.get('dis')
* //=> 'eh'
*
* chain.set('dis', {id: 'eh'})
* chain.get('dis')
* //=> 'eh'
*
*
* @example
*
* import {format} from 'date-fns/esm'
* import {Chain} from 'chain-able'
*
* const chain = new Chain()
* chain.transform('created_at', date => format(date, 'MM/DD/YYYY'))
* chain.set('created_at', new Date())
*
* // is formatted human-readable pretty!
* const {created_at} = chain.entries()
* //=> '02/11/2014'
*
*/
Target.prototype.transform = function transform(key, value) {
return this.meta(TRANSFORMERS_KEY, key, value)
}
/**
* @memberOf TransformChain
*
* @override
* @inheritdoc
* @since 1.0.0
*
* @TODO curry
*
* @param {Primitive} key key to set with
* @param {any} val value to set for key
* @param {undefined | string | Array<string>} dotPropKey special key used for initializing dot prop values in an optimized way to keep reference
* @return {Chainable} @chainable
*
* @see this.observe, this.transform
*/
Target.prototype.set = function transformSet(key, val, dotPropKey) {
var this$1 = this;
var value = val
// get
var transformers = this.meta(TRANSFORMERS_KEY, key)
for (var t = 0; t < transformers.length; t++) {
value = transformers[t].call(this$1, value, this$1)
}
// super.set(key, value)
set.call(this, key, value)
// get
var observers = this.meta(OBSERVERS_KEY)
// @TODO !isEmpty
// skip the below if we have no observers
if (!observers.length) {
return this
}
var data = {key: dotPropKey, value: value}
if (isUndefined(dotPropKey)) {
data.key = isObj(value) ? dotPropPaths(key, value) : key
}
for (var o = 0; o < observers.length; o++) {
observers[o](data)
}
return this
}
// @TODO
// // https://stackoverflow.com/questions/31158902/is-it-possible-to-sort-a-es6-map-object
// ordered(comperator = null) {
// // this.set = this.before(this.set)
// this.set = (key, value) => {
// // have to iterate over the keys before setting
// // and then after merging in values, update
// if (this.store.has(key)) {
// // first
// let keys = this.store.keys()
// if (isFunction(comperator)) keys = keys.sort(comperator)
//
// // after
// const store = this.store
// this.store = new Map()
// keys.forEach(keyInOrder => this.store.set(key, store.get(key)))
// store.clear()
// }
// }
// }
// --- remap ---
/**
* @desc remap properties from 1 to another, for example, apis with inconsistent naming
* @memberOf TransformChain
* @since 1.0.0
* @symb 🗺
*
* @param {string | Object} from property name string, or {[from]: to}
* @param {string} [to=undefined] property name to change key to
* @return {Chain} @chainable
*
* @see TransformChain.transform
* @IDEA could also be a function, but then might as well use .transform
*
* @example
*
* chain
* .remap('dis', 'dat')
* .from({dis: true})
*
* chain.entries()
* //=> {dat: true}
*
* @example
*
* chain
* .remap({dis: 'dat'})
* .from({dis: 1, other: true}}
*
* chain.entries()
* //=> {dist: 1, other: true}
*
*/
Target.prototype.remap = function chainRemap(from, to) {
var this$1 = this;
var remap = isObj(from) ? from : {[from]: to}
/* prettier-ignore */
ObjectKeys(remap).forEach(function (key) { return this$1.transform(key, function (val) {
this$1.set(remap[key], val)
return val
}); })
return this
}
return Target
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"file":"Transform.js","sources":["Transform.js"],"sourcesContent":["const TraverseChain = require('../TraverseChain')\nconst curry = require('../deps/fp/curry')\nconst isObj = require('../deps/is/obj')\nconst isTrue = require('../deps/is/true')\nconst isFalsy = require('../deps/is/falsy')\nconst isUndefined = require('../deps/is/undefined')\nconst ObjectKeys = require('../deps/util/keys')\nconst dotPropPaths = require('../deps/dot/paths')\nconst TRANSFORMERS_KEY = require('../deps/meta/TRANSFORMERS_KEY')\nconst OBSERVERS_KEY = require('../deps/meta/OBSERVERS_KEY')\n\n/**\n * @param {Class | Composable} Target composable class\n * @return {TransformChain} class\n * @example\n *    compose(class {})\n *    //=> TransformChain\n */\nmodule.exports = Target => {\n  const set = Target.prototype.set\n\n  /**\n   * @class TransformChain\n   * @member TransformChain\n   * @extends {ChainedMap}\n   * @memberOf compose\n   * @category Chainable\n   *\n   * @tests TransformChain\n   * @types TransformChain\n   *\n   * @symb 🤖\n   * @type {Map}\n   *\n   * @see deps/traverse\n   * @see TraverseChain\n   *\n   * {@link https://github.com/iluwatar/java-design-patterns/tree/master/state state-pattern}\n   * {@link https://github.com/iluwatar/java-design-patterns/tree/master/strategy strategy-pattern}\n   */\n  // class Transform extends Target\n  // -------------------------------------------\n\n  /**\n   * @desc traverse `this`, or `this.entries`\n   * @since 1.0.2\n   *\n   * @param  {boolean | traversable} [useThis=false] use the instance properties that are `mapish` as well\n   * @return {TraverseChain} @chainable\n   *\n   * @see TraverseChain\n   * @see js-traverse\n   *\n   * @example\n   *  TAKE FROM TRAVERSECHAIN\n   */\n  Target.prototype.traverse = function traverseChain(useThis) {\n    /* prettier-ignore */\n    return new TraverseChain(this)\n      .obj(\n        // @NOTE\n        // defaultTo(false, useThis)\n        //  defaulting arg to false is shorter\n        //  & faster than void 0 inline checks\n        //  that mutate arguments (when transpiled)\n        isFalsy(useThis)\n          ? this.entries(true)\n          : isTrue(useThis)\n            ? this\n            : useThis\n\n        // isFalse(useThis)\n        //   ? this.entries(true)\n        //   : isTrue(useThis)\n        //     ? this\n        //     : useThis\n      )\n  }\n\n  /**\n   * @since 1.0.2\n   * @memberOf TransformChain\n   *\n   * @param  {string | Function} key currently just string\n   * @param  {Function} value callback accepting the value as only arg to transform with\n   * @return {TransformChain} @chainable\n   *\n   * @TODO dot-prop here\n   *\n   * @example\n   *\n   *   // coerce values with .id into the value they hold\n   *   chain\n   *     .transform('dis', val => (typeof val === 'string' ? val : val.id))\n   *\n   *   chain.set('dis', 'eh')\n   *   chain.get('dis')\n   *   //=> 'eh'\n   *\n   *   chain.set('dis', {id: 'eh'})\n   *   chain.get('dis')\n   *   //=> 'eh'\n   *\n   *\n   * @example\n   *\n   *    import {format} from 'date-fns/esm'\n   *    import {Chain} from 'chain-able'\n   *\n   *    const chain = new Chain()\n   *    chain.transform('created_at', date => format(date, 'MM/DD/YYYY'))\n   *    chain.set('created_at', new Date())\n   *\n   *    // is formatted human-readable pretty!\n   *    const {created_at} = chain.entries()\n   *    //=> '02/11/2014'\n   *\n   */\n  Target.prototype.transform = function transform(key, value) {\n    return this.meta(TRANSFORMERS_KEY, key, value)\n  }\n\n  /**\n   * @memberOf TransformChain\n   *\n   * @override\n   * @inheritdoc\n   * @since 1.0.0\n   *\n   * @TODO curry\n   *\n   * @param {Primitive} key key to set with\n   * @param {any} val value to set for key\n   * @param {undefined | string | Array<string>} dotPropKey special key used for initializing dot prop values in an optimized way to keep reference\n   * @return {Chainable} @chainable\n   *\n   * @see this.observe, this.transform\n   */\n  Target.prototype.set = function transformSet(key, val, dotPropKey) {\n    let value = val\n\n    // get\n    const transformers = this.meta(TRANSFORMERS_KEY, key)\n    for (let t = 0; t < transformers.length; t++) {\n      value = transformers[t].call(this, value, this)\n    }\n\n    // super.set(key, value)\n    set.call(this, key, value)\n\n    // get\n    const observers = this.meta(OBSERVERS_KEY)\n\n    // @TODO !isEmpty\n    // skip the below if we have no observers\n    if (!observers.length) {\n      return this\n    }\n\n    const data = {key: dotPropKey, value}\n    if (isUndefined(dotPropKey)) {\n      data.key = isObj(value) ? dotPropPaths(key, value) : key\n    }\n\n    for (let o = 0; o < observers.length; o++) {\n      observers[o](data)\n    }\n\n    return this\n  }\n\n  // @TODO\n  // // https://stackoverflow.com/questions/31158902/is-it-possible-to-sort-a-es6-map-object\n  // ordered(comperator = null) {\n  //   // this.set = this.before(this.set)\n  //   this.set = (key, value) => {\n  //     // have to iterate over the keys before setting\n  //     // and then after merging in values, update\n  //     if (this.store.has(key)) {\n  //       // first\n  //       let keys = this.store.keys()\n  //       if (isFunction(comperator)) keys = keys.sort(comperator)\n  //\n  //       // after\n  //       const store = this.store\n  //       this.store = new Map()\n  //       keys.forEach(keyInOrder => this.store.set(key, store.get(key)))\n  //       store.clear()\n  //     }\n  //   }\n  // }\n\n  // --- remap ---\n  /**\n   * @desc remap properties from 1 to another, for example, apis with inconsistent naming\n   * @memberOf TransformChain\n   * @since 1.0.0\n   * @symb 🗺\n   *\n   * @param  {string | Object} from property name string, or {[from]: to}\n   * @param  {string} [to=undefined] property name to change key to\n   * @return {Chain} @chainable\n   *\n   * @see TransformChain.transform\n   * @IDEA could also be a function, but then might as well use .transform\n   *\n   * @example\n   *\n   *  chain\n   *    .remap('dis', 'dat')\n   *    .from({dis: true})\n   *\n   *  chain.entries()\n   *  //=> {dat: true}\n   *\n   * @example\n   *\n   *  chain\n   *    .remap({dis: 'dat'})\n   *    .from({dis: 1, other: true}}\n   *\n   *  chain.entries()\n   *  //=> {dist: 1, other: true}\n   *\n   */\n  Target.prototype.remap = function chainRemap(from, to) {\n    let remap = isObj(from) ? 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