Reduce baseIsMatch and isMatch by adding getMatchData.

lodash.src.js

@@ -2382,31 +2382,34 @@
      *
      * @private
      * @param {Object} object The object to inspect.
-     * @param {Array} props The source property names to match.
+     * @param {Array} matchData The propery names, values, and compare flags to match.
-     * @param {Array} values The source values to match.
-     * @param {Array} strictCompareFlags Strict comparison flags for source values.
      * @param {Function} [customizer] The function to customize comparing objects.
      * @returns {boolean} Returns `true` if `object` is a match, else `false`.
      */
-    function baseIsMatch(object, props, values, strictCompareFlags, customizer) {
+    function baseIsMatch(object, matchData, customizer) {
-      var length = props.length,
+      var index = matchData.length,
-          index = length,
+          length = index,
           noCustomizer = !customizer;
 
+      if (object == null) {
+        return !length;
+      }
       while (index--) {
-        if ((noCustomizer && strictCompareFlags[index])
+        var data = matchData[index];
-              ? values[index] !== object[props[index]]
+        if ((noCustomizer && data[2])
-              : !(props[index] in object)
+              ? data[1] !== object[data[0]]
+              : !(data[0] in object)
             ) {
           return false;
         }
       }
       while (++index < length) {
-        var key = props[index],
+        data = matchData[index];
+        var key = data[0],
             objValue = object[key],
-            srcValue = values[index];
+            srcValue = data[1];
 
-        if (noCustomizer && strictCompareFlags[index]) {
+        if (noCustomizer && data[2]) {
           if (objValue === undefined && !(key in object)) {
             return false;
           }
@@ -2447,36 +2450,21 @@
      * @returns {Function} Returns the new function.
      */
     function baseMatches(source) {
-      var props = keys(source),
+      var matchData = getMatchData(source);
-          length = props.length;
+      if (matchData.length == 1 && matchData[0][2]) {
+        var key = matchData[0][0],
+            value = matchData[0][1];
 
-      if (!length) {
+        return function(object) {
-        return constant(true);
+          if (object == null) {
-      }
+            return false;
-      if (length == 1) {
+          }
-        var key = props[0],
+          object = toObject(object);
-            value = source[key];
+          return object[key] === value && (value !== undefined || (key in object));
-
+        };
-        if (isStrictComparable(value)) {
-          return function(object) {
-            if (object == null) {
-              return false;
-            }
-            object = toObject(object);
-            return object[key] === value && (value !== undefined || (key in object));
-          };
-        }
-      }
-      var values = Array(length),
-          strictCompareFlags = Array(length);
-
-      while (length--) {
-        value = source[props[length]];
-        values[length] = value;
-        strictCompareFlags[length] = isStrictComparable(value);
       }
       return function(object) {
-        return object != null && baseIsMatch(toObject(object), props, values, strictCompareFlags);
+        return baseIsMatch(object, matchData);
       };
     }
 
@@ -4077,6 +4065,23 @@
      */
     var getLength = baseProperty('length');
 
+    /**
+     * Gets the propery names, values, and compare flags of `object`.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the match data of `object`.
+     */
+    function getMatchData(object) {
+      var result = pairs(object),
+          length = result.length;
+
+      while (length--) {
+        result[length][2] = isStrictComparable(result[length][1]);
+      }
+      return result;
+    }
+
     /**
      * Gets the native function at `key` of `object`.
      *
@@ -8915,24 +8920,8 @@
      * // => true
      */
     function isMatch(object, source, customizer, thisArg) {
-      var props = keys(source),
-          length = props.length;
-
-      if (!length) {
-        return true;
-      }
-      if (object == null) {
-        return false;
-      }
-      var values = Array(length),
-          strictCompareFlags = Array(length);
-
-      while (length--) {
-        var value = values[length] = source[props[length]];
-        strictCompareFlags[length] = isStrictComparable(value);
-      }
       customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined;
-      return baseIsMatch(toObject(object), props, values, strictCompareFlags, customizer);
+      return baseIsMatch(object, getMatchData(source), customizer);
     }
 
     /**