initial commit

node_modules/es6-weak-map/polyfill.js

@@ -0,0 +1,65 @@
+"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"));