Lint unknown tags

Author: jfirebaugh

lib/parse.js

@@ -296,8 +296,13 @@ function parseJSDoc(comment, loc, context) {
       for (var j = 0; j < tag.errors.length; j++) {
         result.errors.push({message: tag.errors[j]});
       }
+    } else if (flatteners[tag.title]) {
+      flatteners[tag.title](result, tag, tag.title);
     } else {
-      (flatteners[tag.title] || function () {})(result, tag, tag.title);
+      result.errors.push({
+        message: 'unknown tag @' + tag.title,
+        commentLineNumber: tag.lineNumber
+      });
     }
   });
 

test/lib/parse.js

@@ -570,3 +570,14 @@ test('parse - @version', function (t) {
 test('parse - @virtual', function (t) {
   t.end();
 });
+
+test('parse - unknown tag', function (t) {
+  t.deepEqual(evaluate(function () {
+    /** @unknown */
+  })[0].errors[0], {
+    message: 'unknown tag @unknown',
+    commentLineNumber: 0
+  });
+
+  t.end();
+});