--- /dev/null
+var baseIsMatch = require('./baseIsMatch'),
+ getMatchData = require('./getMatchData');
+
+/**
+ * The base implementation of `_.matches` which doesn't clone `source`.
+ *
+ * @private
+ * @param {Object} source The object of property values to match.
+ * @returns {Function} Returns the new function.
+ */
+function baseMatches(source) {
+ var matchData = getMatchData(source);
+ if (matchData.length == 1 && matchData[0][2]) {
+ var key = matchData[0][0],
+ value = matchData[0][1];
+
+ return function(object) {
+ if (object == null) {
+ return false;
+ }
+ return object[key] === value &&
+ (value !== undefined || (key in Object(object)));
+ };
+ }
+ return function(object) {
+ return object === source || baseIsMatch(object, source, matchData);
+ };
+}
+
+module.exports = baseMatches;