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							158 lines
						
					
					
						
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							158 lines
						
					
					
						
							4.4 KiB
						
					
					
				| 'use strict';
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| var ctx = require('./_ctx');
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| var $export = require('./_export');
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| var createDesc = require('./_property-desc');
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| var assign = require('./_object-assign');
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| var create = require('./_object-create');
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| var getPrototypeOf = require('./_object-gpo');
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| var getKeys = require('./_object-keys');
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| var dP = require('./_object-dp');
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| var keyOf = require('./_keyof');
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| var aFunction = require('./_a-function');
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| var forOf = require('./_for-of');
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| var isIterable = require('./core.is-iterable');
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| var $iterCreate = require('./_iter-create');
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| var step = require('./_iter-step');
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| var isObject = require('./_is-object');
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| var toIObject = require('./_to-iobject');
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| var DESCRIPTORS = require('./_descriptors');
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| var has = require('./_has');
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| 
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| // 0 -> Dict.forEach
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| // 1 -> Dict.map
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| // 2 -> Dict.filter
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| // 3 -> Dict.some
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| // 4 -> Dict.every
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| // 5 -> Dict.find
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| // 6 -> Dict.findKey
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| // 7 -> Dict.mapPairs
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| var createDictMethod = function (TYPE) {
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|   var IS_MAP = TYPE == 1;
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|   var IS_EVERY = TYPE == 4;
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|   return function (object, callbackfn, that /* = undefined */) {
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|     var f = ctx(callbackfn, that, 3);
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|     var O = toIObject(object);
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|     var result = IS_MAP || TYPE == 7 || TYPE == 2
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|           ? new (typeof this == 'function' ? this : Dict)() : undefined;
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|     var key, val, res;
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|     for (key in O) if (has(O, key)) {
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|       val = O[key];
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|       res = f(val, key, object);
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|       if (TYPE) {
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|         if (IS_MAP) result[key] = res;          // map
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|         else if (res) switch (TYPE) {
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|           case 2: result[key] = val; break;     // filter
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|           case 3: return true;                  // some
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|           case 5: return val;                   // find
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|           case 6: return key;                   // findKey
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|           case 7: result[res[0]] = res[1];      // mapPairs
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|         } else if (IS_EVERY) return false;      // every
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|       }
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|     }
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|     return TYPE == 3 || IS_EVERY ? IS_EVERY : result;
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|   };
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| };
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| var findKey = createDictMethod(6);
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| 
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| var createDictIter = function (kind) {
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|   return function (it) {
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|     return new DictIterator(it, kind);
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|   };
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| };
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| var DictIterator = function (iterated, kind) {
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|   this._t = toIObject(iterated); // target
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|   this._a = getKeys(iterated);   // keys
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|   this._i = 0;                   // next index
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|   this._k = kind;                // kind
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| };
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| $iterCreate(DictIterator, 'Dict', function () {
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|   var that = this;
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|   var O = that._t;
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|   var keys = that._a;
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|   var kind = that._k;
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|   var key;
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|   do {
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|     if (that._i >= keys.length) {
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|       that._t = undefined;
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|       return step(1);
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|     }
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|   } while (!has(O, key = keys[that._i++]));
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|   if (kind == 'keys') return step(0, key);
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|   if (kind == 'values') return step(0, O[key]);
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|   return step(0, [key, O[key]]);
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| });
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| 
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| function Dict(iterable) {
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|   var dict = create(null);
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|   if (iterable != undefined) {
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|     if (isIterable(iterable)) {
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|       forOf(iterable, true, function (key, value) {
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|         dict[key] = value;
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|       });
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|     } else assign(dict, iterable);
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|   }
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|   return dict;
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| }
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| Dict.prototype = null;
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| 
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| function reduce(object, mapfn, init) {
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|   aFunction(mapfn);
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|   var O = toIObject(object);
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|   var keys = getKeys(O);
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|   var length = keys.length;
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|   var i = 0;
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|   var memo, key;
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|   if (arguments.length < 3) {
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|     if (!length) throw TypeError('Reduce of empty object with no initial value');
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|     memo = O[keys[i++]];
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|   } else memo = Object(init);
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|   while (length > i) if (has(O, key = keys[i++])) {
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|     memo = mapfn(memo, O[key], key, object);
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|   }
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|   return memo;
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| }
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| 
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| function includes(object, el) {
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|   // eslint-disable-next-line no-self-compare
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|   return (el == el ? keyOf(object, el) : findKey(object, function (it) {
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|     // eslint-disable-next-line no-self-compare
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|     return it != it;
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|   })) !== undefined;
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| }
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| 
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| function get(object, key) {
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|   if (has(object, key)) return object[key];
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| }
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| function set(object, key, value) {
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|   if (DESCRIPTORS && key in Object) dP.f(object, key, createDesc(0, value));
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|   else object[key] = value;
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|   return object;
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| }
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| 
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| function isDict(it) {
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|   return isObject(it) && getPrototypeOf(it) === Dict.prototype;
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| }
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| 
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| $export($export.G + $export.F, { Dict: Dict });
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| 
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| $export($export.S, 'Dict', {
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|   keys: createDictIter('keys'),
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|   values: createDictIter('values'),
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|   entries: createDictIter('entries'),
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|   forEach: createDictMethod(0),
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|   map: createDictMethod(1),
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|   filter: createDictMethod(2),
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|   some: createDictMethod(3),
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|   every: createDictMethod(4),
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|   find: createDictMethod(5),
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|   findKey: findKey,
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|   mapPairs: createDictMethod(7),
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|   reduce: reduce,
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|   keyOf: keyOf,
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|   includes: includes,
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|   has: has,
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|   get: get,
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|   set: set,
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|   isDict: isDict
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| });
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