feat[classfile]: PrettySerialize instances

only a little bit broken formatting

src/Language/Java/Classfile/Methods.hs

@@ -14,12 +14,13 @@ import Language.Java.Classfile.Extractable (Extractable)
 import GHC.Generics ( Generically, Generic, Generically(..) )
 import Language.Java.Classfile.ConstantPool.References (Utf8Reference)
 import Language.Java.Classfile.Attributes (Attributes)
+import Pretty.Serialize (PrettySerialize)
 
 -- | Alias for the methods structure from the constant-pool.
 
 newtype Methods = Methods (Array Word16 Method)
   deriving stock (Show)
-  deriving newtype Extractable
+  deriving newtype (Extractable, PrettySerialize)
 
 -- | A single method record, contains attributes, name and access flags.
 
@@ -30,7 +31,7 @@ data Method = Method
   , attributes  :: Attributes
   }
   deriving stock (Show, Generic)
-  deriving Extractable via Generically Method
+  deriving (Extractable, PrettySerialize) via Generically Method
 
 -- | Flags for the method, such as abstract, public or static.
 
@@ -47,7 +48,8 @@ data MethodFlag
   | Abstract
   | Strict
   | Synthetic
-  deriving stock (Show, Eq, Ord, Enum, Bounded)
+  deriving stock (Show, Eq, Ord, Enum, Bounded, Generic)
+  deriving PrettySerialize via Generically MethodFlag
 
 instance FlagMask MethodFlag where
   type FlagType MethodFlag = Word16