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Runtime error
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"use strict";
var isValue = require("es5-ext/object/is-value")
, setPrototypeOf = require("es5-ext/object/set-prototype-of")
, object = require("es5-ext/object/valid-object")
, ensureValue = require("es5-ext/object/valid-value")
, randomUniq = require("es5-ext/string/random-uniq")
, d = require("d")
, getIterator = require("es6-iterator/get")
, forOf = require("es6-iterator/for-of")
, toStringTagSymbol = require("es6-symbol").toStringTag
, isNative = require("./is-native-implemented")
, isArray = Array.isArray, defineProperty = Object.defineProperty
, objHasOwnProperty = Object.prototype.hasOwnProperty, getPrototypeOf = Object.getPrototypeOf
, WeakMapPoly;
module.exports = WeakMapPoly = function (/* Iterable*/) {
var iterable = arguments[0], self;
if (!(this instanceof WeakMapPoly)) throw new TypeError("Constructor requires 'new'");
self = isNative && setPrototypeOf && (WeakMap !== WeakMapPoly)
? setPrototypeOf(new WeakMap(), getPrototypeOf(this)) : this;
if (isValue(iterable)) {
if (!isArray(iterable)) iterable = getIterator(iterable);
}
defineProperty(self, "__weakMapData__", d("c", "$weakMap$" + randomUniq()));
if (!iterable) return self;
forOf(iterable, function (val) {
ensureValue(val);
self.set(val[0], val[1]);
});
return self;
};
if (isNative) {
if (setPrototypeOf) setPrototypeOf(WeakMapPoly, WeakMap);
WeakMapPoly.prototype = Object.create(WeakMap.prototype, { constructor: d(WeakMapPoly) });
}
Object.defineProperties(WeakMapPoly.prototype, {
delete: d(function (key) {
if (objHasOwnProperty.call(object(key), this.__weakMapData__)) {
delete key[this.__weakMapData__];
return true;
}
return false;
}),
get: d(function (key) {
if (!objHasOwnProperty.call(object(key), this.__weakMapData__)) return undefined;
return key[this.__weakMapData__];
}),
has: d(function (key) {
return objHasOwnProperty.call(object(key), this.__weakMapData__);
}),
set: d(function (key, value) {
defineProperty(object(key), this.__weakMapData__, d("c", value));
return this;
}),
toString: d(function () {
return "[object WeakMap]";
})
});
defineProperty(WeakMapPoly.prototype, toStringTagSymbol, d("c", "WeakMap"));
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