Merge pull request #2385 from ddprrt/extend-warnings

checking for doubles when warning for empty extends
less · Jan 13, 2015 · ea6bd41 · ea6bd41
2 parents c036495 + 5551c40
commit ea6bd41
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/lib/less/visitors/extend-visitor.js b/lib/less/visitors/extend-visitor.js
@@ -95,6 +95,7 @@ var ProcessExtendsVisitor = function() {
 ProcessExtendsVisitor.prototype = {
     run: function(root) {
         var extendFinder = new ExtendFinderVisitor();
+        this.extendIndicies = {};
         extendFinder.run(root);
         if (!extendFinder.foundExtends) { return root; }
         root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends));
@@ -104,14 +105,19 @@ ProcessExtendsVisitor.prototype = {
         return newRoot;
     },
     checkExtendsForNonMatched: function(extendList) {
+        var indicies = this.extendIndicies;
         extendList.filter(function(extend) {
             return !extend.hasFoundMatches && extend.parent_ids.length == 1;
         }).forEach(function(extend) {
                 var selector = "_unknown_";
                 try {
                     selector = extend.selector.toCSS({});
                 }catch(_){}
-                logger.warn("extend '"+selector+"' has no matches");
+
+                if(!indicies[extend.index + ' ' + selector]) {
+                    indicies[extend.index + ' ' + selector] = true;
+                    logger.warn("extend '"+selector+"' has no matches");   
+                }
             });
     },
     doExtendChaining: function (extendsList, extendsListTarget, iterationCount) {