add boolean type

lib/fieldType/boolean.js

@@ -0,0 +1,45 @@
+/**
+ * XadillaX created at 2015-11-02 10:40:53 With ♥
+ *
+ * Copyright (c) 2015 Souche.com, all rights
+ * reserved.
+ */
+"use strict";
+
+var _Boolean = {};
+_Boolean.name = "_Boolean";
+_Boolean.needQuotes = false;
+
+/**
+ * restore
+ * @param {_Boolean} parsed the parsed integer
+ * @return {Number} the integer restored
+ */
+_Boolean.restore = function(parsed) {
+    return (parsed ^ 0) & 1;
+};
+
+/**
+ * parse
+ * @param {Number} orig the original integer
+ * @return {_Boolean} the boolean value
+ */
+_Boolean.parse = function(orig) {
+    return !!orig;
+};
+
+_Boolean.defaultValue = 0;
+
+/**
+ * equal
+ * @param {Number|Boolean} a integer I
+ * @param {Number|Boolean} b integer II
+ * @return {Boolean} whether they are equal
+ */
+_Boolean.equal = function(a, b) {
+    a = !!a;
+    b = !!b;
+    return a === b;
+};
+
+module.exports = _Boolean;