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node_modules/es6-map/primitive/index.js
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'use strict';
var clear = require('es5-ext/object/clear')
, setPrototypeOf = require('es5-ext/object/set-prototype-of')
, validValue = require('es5-ext/object/valid-value')
, callable = require('es5-ext/object/valid-callable')
, d = require('d')
, iterator = require('es6-iterator/valid-iterable')
, forOf = require('es6-iterator/for-of')
, isNative = require('../is-native-implemented')
, MapPolyfill = require('../polyfill')
, Iterator = require('../lib/primitive-iterator')
, call = Function.prototype.call
, create = Object.create, defineProperty = Object.defineProperty
, defineProperties = Object.defineProperties, getPrototypeOf = Object.getPrototypeOf
, hasOwnProperty = Object.prototype.hasOwnProperty
, PrimitiveMap;
module.exports = PrimitiveMap = function (/*iterable, serialize*/) {
var iterable = arguments[0], serialize = arguments[1], self;
if (!(this instanceof PrimitiveMap)) throw new TypeError('Constructor requires \'new\'');
if (isNative && setPrototypeOf && (Map !== MapPolyfill)) {
self = setPrototypeOf(new Map(), getPrototypeOf(this));
} else {
self = this;
}
if (iterable != null) iterator(iterable);
if (serialize !== undefined) {
callable(serialize);
defineProperty(self, '_serialize', d('', serialize));
}
defineProperties(self, {
__mapKeysData__: d('c', create(null)),
__mapValuesData__: d('c', create(null)),
__size__: d('w', 0)
});
if (!iterable) return self;
forOf(iterable, function (value) {
var key = validValue(value)[0], sKey = self._serialize(key);
if (sKey == null) throw new TypeError(key + " cannot be serialized");
value = value[1];
if (hasOwnProperty.call(self.__mapKeysData__, sKey)) {
if (self.__mapValuesData__[sKey] === value) return;
} else {
++self.__size__;
}
self.__mapKeysData__[sKey] = key;
self.__mapValuesData__[sKey] = value;
});
return self;
};
if (setPrototypeOf) setPrototypeOf(PrimitiveMap, MapPolyfill);
PrimitiveMap.prototype = create(MapPolyfill.prototype, {
constructor: d(PrimitiveMap),
_serialize: d(function (value) {
if (value && (typeof value.toString !== 'function')) return null;
return String(value);
}),
clear: d(function () {
if (!this.__size__) return;
clear(this.__mapKeysData__);
clear(this.__mapValuesData__);
this.__size__ = 0;
this.emit('_clear');
}),
delete: d(function (key) {
var sKey = this._serialize(key);
if (sKey == null) return false;
if (!hasOwnProperty.call(this.__mapKeysData__, sKey)) return false;
delete this.__mapKeysData__[sKey];
delete this.__mapValuesData__[sKey];
--this.__size__;
this.emit('_delete', sKey);
return true;
}),
entries: d(function () { return new Iterator(this, 'key+value'); }),
forEach: d(function (cb/*, thisArg*/) {
var thisArg = arguments[1], iterator, result, sKey;
callable(cb);
iterator = this.entries();
result = iterator._next();
while (result !== undefined) {
sKey = iterator.__list__[result];
call.call(cb, thisArg, this.__mapValuesData__[sKey],
this.__mapKeysData__[sKey], this);
result = iterator._next();
}
}),
get: d(function (key) {
var sKey = this._serialize(key);
if (sKey == null) return;
return this.__mapValuesData__[sKey];
}),
has: d(function (key) {
var sKey = this._serialize(key);
if (sKey == null) return false;
return hasOwnProperty.call(this.__mapKeysData__, sKey);
}),
keys: d(function () { return new Iterator(this, 'key'); }),
size: d.gs(function () { return this.__size__; }),
set: d(function (key, value) {
var sKey = this._serialize(key);
if (sKey == null) throw new TypeError(key + " cannot be serialized");
if (hasOwnProperty.call(this.__mapKeysData__, sKey)) {
if (this.__mapValuesData__[sKey] === value) return this;
} else {
++this.__size__;
}
this.__mapKeysData__[sKey] = key;
this.__mapValuesData__[sKey] = value;
this.emit('_add', sKey);
return this;
}),
values: d(function () { return new Iterator(this, 'value'); })
});
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