Impl display for kinds

src/macros.rs

@@ -39,6 +39,12 @@ macro_rules! kind {
             $y,
         }
 
+        impl std::fmt::Display for $x {
+            fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+                write!(f, stringify!($y))
+            }
+        }
+
         impl Default for $x {
             fn default() -> Self {
                 $x::$y
@@ -67,3 +73,13 @@ macro_rules! uri {
         $x.parse::<Url>()?
     }};
 }
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn to_string_works() {
+        kind!(MyType, My);
+
+        assert_eq!(MyType::My.to_string(), "My")
+    }
+}