Fix bug with protocol vector return schemas

Author: julienvincent

.cljfmt.edn

@@ -1,3 +1,5 @@
 {:remove-multiple-non-indenting-spaces? true
  :sort-ns-references? true
- :indents {io.julienvincent.malt/extend [[:inner 0] [:inner 1]]}}
+ :indents {io.julienvincent.malt/extend [[:inner 0] [:inner 1]]
+           io.julienvincent.malt/implement [[:inner 0] [:inner 1]]
+           io.julienvincent.malt/defrecord [[:inner 0] [:inner 1]]}}

README.md

@@ -132,7 +132,15 @@ config to display properly:
 
 ```clojure
 ;; .cljfmt.edn
-{:indents {io.julienvincent.malt/extend [[:inner 0] [:inner 1]]}}
+{:indents {io.julienvincent.malt/extend [[:inner 0] [:inner 1]]
+           io.julienvincent.malt/implement [[:inner 0] [:inner 1]]
+           io.julienvincent.malt/defrecord [[:inner 0] [:inner 1]]}}
 ```
 
 This might not be needed in the future - see https://github.com/weavejester/cljfmt/issues/336
+
+## Gotchas
+
+If you are using the autogenerated `?Type` schemas that are produced by `malt/defprotocol` and `malt/defrecord` then
+note that lsp references don't work perfectly due to limitations in clojure-lsp. This means that go-to-references will
+not find references to these schema vars and operations like rename will not apply to those references.

clj-kondo-test/io/julienvincent/kondo_test.clj

@@ -29,15 +29,6 @@
 
   (c [a :int b :int] ?SchemaReference))
 
-(malt/defprotocol ExampleWithDocs
-  "This is what the protocol does"
-  (get-docs [a :int] :string))
-
-(get-docs
- (reify ExampleWithDocs
-   (get-docs [_ _] ""))
- 1)
-
 (def example
   (reify Example
     (a [_ _ _] 1)
@@ -82,3 +73,21 @@
 (m/validate ?Point (->Point 1 1))
 (m/validate ?PointSchema {:x 1
                           :y 1})
+
+(malt/defprotocol ExampleWithDocs
+  "This is what the protocol does"
+  (get-docs [a :int] :string))
+
+(get-docs
+ (reify ExampleWithDocs
+   (get-docs [_ _] ""))
+ 1)
+
+(malt/defprotocol NoArgs
+  (no-args [] [:vector :string]))
+
+(def with-no-args
+  (reify NoArgs
+    (no-args [_] "")))
+
+(no-args with-no-args)

resources/clj-kondo.exports/io.julienvincent/malt/hooks/io/julienvincent/malt.clj

@@ -28,7 +28,7 @@
                                     [(first rest-children) (rest rest-children)]
                                     [nil rest-children])
         schema-form? (and (= 2 (count rest-children))
-                          (= 1 (count (filter vector-node? rest-children))))
+                          (vector-node? (first rest-children)))
         method-children (if schema-form?
                           (let [[input-schemas-node output-schema-node] rest-children
                                 {:keys [pair-form? param-nodes schema-nodes]} (parse-input-schemas-node