derive-2.5.23: Data/Derive/Serialize.hs
module Data.Derive.Serialize where
{-
import "cereal" Data.Serialize
example :: Sample
instance Serialize alpha => Serialize (Sample alpha) where
put x = case x of
First -> do putTag 0
Second x1 x2 -> do putTag 1 ; put x1 ; put x2
Third x1 -> do putTag 2 ; put x1
where
useTag = length [First{}, Second{}, Third{}] > 1
putTag x = when useTag (putWord8 x)
get = do
i <- getTag
case i of
0 -> do return (First)
1 -> do x1 <- get ; x2 <- get ; return (Second x1 x2)
2 -> do x1 <- get ; return (Third x1)
_ -> error "Corrupted binary data for Sample"
where
useTag = length [First{}, Second{}, Third{}] > 1
getTag = if useTag then getWord8 else return 0
test :: List
instance Serialize a => Serialize (List a) where
put x = case x of
Nil -> putWord8 0
Cons x1 x2 -> do putWord8 1; put x1; put x2
get = do
i <- getWord8
case i of
0 -> return Nil
1 -> do x1 <- get; x2 <- get; return (Cons x1 x2)
_ -> error "Corrupted binary data for List"
test :: Assoced
instance Serialize typ => Serialize (Assoced typ) where
put (Assoced x1 x2) = do put x1; put x2
get = do x1 <- get; x2 <- get; return (Assoced x1 x2)
-}
-- GENERATED START
import Data.Derive.DSL.DSL
import Data.Derive.Internal.Derivation
makeSerialize :: Derivation
makeSerialize = derivationDSL "Serialize" dslSerialize
dslSerialize =
List [Instance ["Serialize"] "Serialize" (List [App "InsDecl" (
List [App "FunBind" (List [List [App "Match" (List [App "Ident" (
List [String "put"]),List [App "PVar" (List [App "Ident" (List [
String "x"])])],App "Nothing" (List []),App "UnGuardedRhs" (List [
App "Case" (List [App "Var" (List [App "UnQual" (List [App "Ident"
(List [String "x"])])]),MapCtor (App "Alt" (List [App "PApp" (List
[App "UnQual" (List [App "Ident" (List [CtorName])]),MapField (App
"PVar" (List [App "Ident" (List [Concat (List [String "x",ShowInt
FieldIndex])])]))]),App "UnGuardedRhs" (List [App "Do" (List [
Concat (List [List [App "Qualifier" (List [App "App" (List [App
"Var" (List [App "UnQual" (List [App "Ident" (List [String
"putTag"])])]),App "Lit" (List [App "Int" (List [CtorIndex])])])])
],MapField (App "Qualifier" (List [App "App" (List [App "Var" (
List [App "UnQual" (List [App "Ident" (List [String "put"])])]),
App "Var" (List [App "UnQual" (List [App "Ident" (List [Concat (
List [String "x",ShowInt FieldIndex])])])])])]))])])]),App
"Nothing" (List [])]))])]),App "Just" (List [App "BDecls" (List [
List [App "PatBind" (List [App "PVar" (List [App "Ident" (List [
String "useTag"])]),App "UnGuardedRhs" (List [App "InfixApp" (List
[App "App" (List [App "Var" (List [App "UnQual" (List [App "Ident"
(List [String "length"])])]),App "List" (List [MapCtor (App
"RecConstr" (List [App "UnQual" (List [App "Ident" (List [CtorName
])]),List []]))])]),App "QVarOp" (List [App "UnQual" (List [App
"Symbol" (List [String ">"])])]),App "Lit" (List [App "Int" (List
[Int 1])])])]),App "Nothing" (List [])]),App "FunBind" (List [List
[App "Match" (List [App "Ident" (List [String "putTag"]),List [App
"PVar" (List [App "Ident" (List [String "x"])])],App "Nothing" (
List []),App "UnGuardedRhs" (List [Application (List [App "Var" (
List [App "UnQual" (List [App "Ident" (List [String "when"])])]),
App "Var" (List [App "UnQual" (List [App "Ident" (List [String
"useTag"])])]),App "Paren" (List [App "App" (List [App "Var" (List
[App "UnQual" (List [App "Ident" (List [Concat (List [String
"putWord",ShowInt (Int 8)])])])]),App "Var" (List [App "UnQual" (
List [App "Ident" (List [String "x"])])])])])])]),App "Nothing" (
List [])])]])]])])])]])]),App "InsDecl" (List [App "PatBind" (List
[App "PVar" (List [App "Ident" (List [String "get"])]),App
"UnGuardedRhs" (List [App "Do" (List [List [App "Generator" (List
[App "PVar" (List [App "Ident" (List [String "i"])]),App "Var" (
List [App "UnQual" (List [App "Ident" (List [String "getTag"])])])
]),App "Qualifier" (List [App "Case" (List [App "Var" (List [App
"UnQual" (List [App "Ident" (List [String "i"])])]),Concat (List [
MapCtor (App "Alt" (List [App "PLit" (List [App "Signless" (List [
]),App "Int" (List [CtorIndex])]),App "UnGuardedRhs" (List [App
"Do" (List [Concat (List [MapField (App "Generator" (List [App
"PVar" (List [App "Ident" (List [Concat (List [String "x",ShowInt
FieldIndex])])]),App "Var" (List [App "UnQual" (List [App "Ident"
(List [String "get"])])])])),List [App "Qualifier" (List [App
"App" (List [App "Var" (List [App "UnQual" (List [App "Ident" (
List [String "return"])])]),App "Paren" (List [Application (Concat
(List [List [App "Con" (List [App "UnQual" (List [App "Ident" (
List [CtorName])])])],MapField (App "Var" (List [App "UnQual" (
List [App "Ident" (List [Concat (List [String "x",ShowInt
FieldIndex])])])]))]))])])])]])])]),App "Nothing" (List [])])),
List [App "Alt" (List [App "PWildCard" (List []),App
"UnGuardedRhs" (List [App "App" (List [App "Var" (List [App
"UnQual" (List [App "Ident" (List [String "error"])])]),App "Lit"
(List [App "String" (List [Concat (List [String
"Corrupted binary data for ",DataName])])])])]),App "Nothing" (
List [])])]])])])]])]),App "Just" (List [App "BDecls" (List [List
[App "PatBind" (List [App "PVar" (List [App "Ident" (List [String
"useTag"])]),App "UnGuardedRhs" (List [App "InfixApp" (List [App
"App" (List [App "Var" (List [App "UnQual" (List [App "Ident" (
List [String "length"])])]),App "List" (List [MapCtor (App
"RecConstr" (List [App "UnQual" (List [App "Ident" (List [CtorName
])]),List []]))])]),App "QVarOp" (List [App "UnQual" (List [App
"Symbol" (List [String ">"])])]),App "Lit" (List [App "Int" (List
[Int 1])])])]),App "Nothing" (List [])]),App "PatBind" (List [App
"PVar" (List [App "Ident" (List [String "getTag"])]),App
"UnGuardedRhs" (List [App "If" (List [App "Var" (List [App
"UnQual" (List [App "Ident" (List [String "useTag"])])]),App "Var"
(List [App "UnQual" (List [App "Ident" (List [Concat (List [String
"getWord",ShowInt (Int 8)])])])]),App "App" (List [App "Var" (List
[App "UnQual" (List [App "Ident" (List [String "return"])])]),App
"Lit" (List [App "Int" (List [Int 0])])])])]),App "Nothing" (List
[])])]])])])])])]
-- GENERATED STOP