flow like the river

VISUALIZACION/node_modules/mongoose/lib/schema/operators/text.js

@@ -0,0 +1,39 @@
+'use strict';
+
+const CastError = require('../../error/cast');
+const castBoolean = require('../../cast/boolean');
+const castString = require('../../cast/string');
+
+/**
+ * Casts val to an object suitable for `$text`. Throws an error if the object
+ * can't be casted.
+ *
+ * @param {Any} val value to cast
+ * @param {String} [path] path to associate with any errors that occured
+ * @return {Object} casted object
+ * @see https://www.mongodb.com/docs/manual/reference/operator/query/text/
+ * @api private
+ */
+
+module.exports = function(val, path) {
+  if (val == null || typeof val !== 'object') {
+    throw new CastError('$text', val, path);
+  }
+
+  if (val.$search != null) {
+    val.$search = castString(val.$search, path + '.$search');
+  }
+  if (val.$language != null) {
+    val.$language = castString(val.$language, path + '.$language');
+  }
+  if (val.$caseSensitive != null) {
+    val.$caseSensitive = castBoolean(val.$caseSensitive,
+      path + '.$castSensitive');
+  }
+  if (val.$diacriticSensitive != null) {
+    val.$diacriticSensitive = castBoolean(val.$diacriticSensitive,
+      path + '.$diacriticSensitive');
+  }
+
+  return val;
+};