--- /dev/null
+var identity = require('./identity'),
+ metaMap = require('./_metaMap');
+
+/**
+ * The base implementation of `setData` without support for hot loop shorting.
+ *
+ * @private
+ * @param {Function} func The function to associate metadata with.
+ * @param {*} data The metadata.
+ * @returns {Function} Returns `func`.
+ */
+var baseSetData = !metaMap ? identity : function(func, data) {
+ metaMap.set(func, data);
+ return func;
+};
+
+module.exports = baseSetData;