81 lines
2.8 KiB
JavaScript
81 lines
2.8 KiB
JavaScript
'use strict';
|
|
|
|
var clear = require('es5-ext/array/#/clear')
|
|
, eIndexOf = require('es5-ext/array/#/e-index-of')
|
|
, setPrototypeOf = require('es5-ext/object/set-prototype-of')
|
|
, callable = require('es5-ext/object/valid-callable')
|
|
, d = require('d')
|
|
, ee = require('event-emitter')
|
|
, Symbol = require('es6-symbol')
|
|
, iterator = require('es6-iterator/valid-iterable')
|
|
, forOf = require('es6-iterator/for-of')
|
|
, Iterator = require('./lib/iterator')
|
|
, isNative = require('./is-native-implemented')
|
|
|
|
, call = Function.prototype.call
|
|
, defineProperty = Object.defineProperty, getPrototypeOf = Object.getPrototypeOf
|
|
, SetPoly, getValues, NativeSet;
|
|
|
|
if (isNative) NativeSet = Set;
|
|
|
|
module.exports = SetPoly = function Set(/*iterable*/) {
|
|
var iterable = arguments[0], self;
|
|
if (!(this instanceof SetPoly)) throw new TypeError('Constructor requires \'new\'');
|
|
if (isNative && setPrototypeOf) self = setPrototypeOf(new NativeSet(), getPrototypeOf(this));
|
|
else self = this;
|
|
if (iterable != null) iterator(iterable);
|
|
defineProperty(self, '__setData__', d('c', []));
|
|
if (!iterable) return self;
|
|
forOf(iterable, function (value) {
|
|
if (eIndexOf.call(this, value) !== -1) return;
|
|
this.push(value);
|
|
}, self.__setData__);
|
|
return self;
|
|
};
|
|
|
|
if (isNative) {
|
|
if (setPrototypeOf) setPrototypeOf(SetPoly, NativeSet);
|
|
SetPoly.prototype = Object.create(NativeSet.prototype, { constructor: d(SetPoly) });
|
|
}
|
|
|
|
ee(Object.defineProperties(SetPoly.prototype, {
|
|
add: d(function (value) {
|
|
if (this.has(value)) return this;
|
|
this.emit('_add', this.__setData__.push(value) - 1, value);
|
|
return this;
|
|
}),
|
|
clear: d(function () {
|
|
if (!this.__setData__.length) return;
|
|
clear.call(this.__setData__);
|
|
this.emit('_clear');
|
|
}),
|
|
delete: d(function (value) {
|
|
var index = eIndexOf.call(this.__setData__, value);
|
|
if (index === -1) return false;
|
|
this.__setData__.splice(index, 1);
|
|
this.emit('_delete', index, value);
|
|
return true;
|
|
}),
|
|
entries: d(function () { return new Iterator(this, 'key+value'); }),
|
|
forEach: d(function (cb/*, thisArg*/) {
|
|
var thisArg = arguments[1], iterator, result, value;
|
|
callable(cb);
|
|
iterator = this.values();
|
|
result = iterator._next();
|
|
while (result !== undefined) {
|
|
value = iterator._resolve(result);
|
|
call.call(cb, thisArg, value, value, this);
|
|
result = iterator._next();
|
|
}
|
|
}),
|
|
has: d(function (value) {
|
|
return (eIndexOf.call(this.__setData__, value) !== -1);
|
|
}),
|
|
keys: d(getValues = function () { return this.values(); }),
|
|
size: d.gs(function () { return this.__setData__.length; }),
|
|
values: d(function () { return new Iterator(this); }),
|
|
toString: d(function () { return '[object Set]'; })
|
|
}));
|
|
defineProperty(SetPoly.prototype, Symbol.iterator, d(getValues));
|
|
defineProperty(SetPoly.prototype, Symbol.toStringTag, d('c', 'Set'));
|