rtsao
diff --git a/‎lib/flow_doctrine.js
Lines changed: 5 additions & 1 deletion b/‎lib/flow_doctrine.js
Lines changed: 5 additions & 1 deletion
diff --git a/‎lib/output/util/format_type.js
Lines changed: 4 additions & 1 deletion b/‎lib/output/util/format_type.js
Lines changed: 4 additions & 1 deletion
diff --git a/‎test/fixture/flow-unnamed-params.input.js
Lines changed: 15 additions & 0 deletions b/‎test/fixture/flow-unnamed-params.input.js
Lines changed: 15 additions & 0 deletions
@@ -98,9 +98,13 @@ function flowDoctrine(type/*: Object */)/*: DoctrineType*/ {
     return {
       type: 'FunctionType',
       params: type.params.map(param => {
+        let name = '';
+        if (param.name && param.name.name) {
+          name = param.name.name;
+        }
         return {
           type: 'ParameterType',
-          name: param.name.name,
+          name,
           expression: flowDoctrine(param.typeAnnotation)
         };
       }),
 
@@ -118,7 +118,10 @@ function formatType(getHref/*: Function*/, node/*: ?Object */) {
   case Syntax.NameExpression:
     return [link(node.name, getHref)];
   case Syntax.ParameterType:
-    return [t(node.name + ': ')].concat(formatType(getHref, node.expression));
+    if (node.name) {
+      result.push(t(node.name + ': '));
+    }
+    return result.concat(formatType(getHref, node.expression));
 
   case Syntax.TypeApplication:
     return formatType(getHref, node.expression)
 
@@ -0,0 +1,15 @@
+// @flow
+
+'use strict';
+
+/** x */
+let x: T => string;
+
+/** x2 */
+let x2: (a: T) => string;
+
+/** T */
+type T = string[] => {num: number};
+
+/** T2 */
+type T2 = (a: string[]) => {num: number};