imports
module Plutarch.Docs.DerivingGenerics (PMyType (..)) where
import Plutarch.Prelude
import Data.Kind (Type)
import GHC.Generics (Generic)
Deriving typeclasses with generics
Plutarch also provides sophisticated generic deriving support for completely custom types. In particular, you can easily derive PlutusType
for your own type:
data PMyType (a :: S -> Type) (b :: S -> Type) (s :: S)
= POne (Term s a)
| PTwo (Term s b)
deriving stock Generic
deriving anyclass PlutusType
instance DerivePlutusType (PMyType a b) where type DPTStrat _ = PlutusTypeScott
Note: This requires the
generics-sop
package.
This will use a Scott encoding representation for MyType
, which is typically what you want.
If you want to use data encoding representation instead in your PlutusType
instance - you should derive it
using PlutusTypeData
. Check out: implementing PIsDataRepr
and friends
Currently, generic deriving supports the following typeclasses:
PlutusType
(Scott encoding only)PEq
POrd
PTryFrom
PShow
PIsData
PDataFields