--- /dev/null
+var isArray = require('./isArray'),
+ isKey = require('./_isKey'),
+ stringToPath = require('./_stringToPath'),
+ toString = require('./toString');
+
+/**
+ * Casts `value` to a path array if it's not one.
+ *
+ * @private
+ * @param {*} value The value to inspect.
+ * @param {Object} [object] The object to query keys on.
+ * @returns {Array} Returns the cast property path array.
+ */
+function castPath(value, object) {
+ if (isArray(value)) {
+ return value;
+ }
+ return isKey(value, object) ? [value] : stringToPath(toString(value));
+}
+
+module.exports = castPath;