node_modules

1 files changed, 80 insertions, 0 deletions

diff --git a/node_modules/es6-set/polyfill.js b/node_modules/es6-set/polyfill.js
new file mode 100644
index 000000000..51b1e6307
--- /dev/null
+++ b/node_modules/es6-set/polyfill.js
@@ -0,0 +1,80 @@
+'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'));