{-# LANGUAGE CPP #-}
module Composite.Swagger.TH where
import Composite.CoRecord (Field)
import Composite.Swagger.Base (wrappedSchema)
import Data.Proxy (Proxy (Proxy))
import Data.Swagger (ToSchema, declareNamedSchema)
import Language.Haskell.TH
( Dec, Name, Q, mkName
, bang, bangType, clause, conT, cxt, funD, instanceD, newtypeD, normalB, recC, varBangType , wildP
, noSourceStrictness, noSourceUnpackedness )
makeToSchema :: String -> Name -> Q [Dec]
makeToSchema :: String -> Name -> Q [Dec]
makeToSchema String
schemaName Name
wrapperName =
forall (t :: * -> *) (m :: * -> *) a.
(Traversable t, Monad m) =>
t (m a) -> m (t a)
sequence
[ forall (m :: * -> *).
Quote m =>
m Cxt -> m Type -> [m Dec] -> m Dec
instanceD
(forall (m :: * -> *). Quote m => [m Type] -> m Cxt
cxt [])
[t| ToSchema $(conT wrapperName) |]
[ forall (m :: * -> *). Quote m => Name -> [m Clause] -> m Dec
funD
'declareNamedSchema
[ forall (m :: * -> *).
Quote m =>
[m Pat] -> m Body -> [m Dec] -> m Clause
clause [forall (m :: * -> *). Quote m => m Pat
wildP] (forall (m :: * -> *). Quote m => m Exp -> m Body
normalB [| wrappedSchema (Proxy :: Proxy $(conT wrapperName)) schemaName |]) [] ]
]
]
makeToSchemaWrapper :: String -> Name -> Q [Dec]
makeToSchemaWrapper :: String -> Name -> Q [Dec]
makeToSchemaWrapper String
wrapperNameStr Name
fieldsTyName = do
let wrapperName :: Name
wrapperName = String -> Name
mkName String
wrapperNameStr
extractorName :: Name
extractorName = String -> Name
mkName forall a b. (a -> b) -> a -> b
$ String
"un" forall a. Semigroup a => a -> a -> a
<> String
wrapperNameStr
fieldTy :: Q Type
fieldTy = [t| Field $(conT fieldsTyName) |]
Dec
wrapperNewtype <- forall (m :: * -> *).
Quote m =>
m Cxt
-> Name
-> [TyVarBndr ()]
-> Maybe Type
-> m Con
-> [m DerivClause]
-> m Dec
newtypeD
(forall (m :: * -> *). Quote m => [m Type] -> m Cxt
cxt [])
Name
wrapperName
[]
forall a. Maybe a
Nothing
(forall (m :: * -> *). Quote m => Name -> [m VarBangType] -> m Con
recC Name
wrapperName [forall (m :: * -> *).
Quote m =>
Name -> m BangType -> m VarBangType
varBangType Name
extractorName (forall (m :: * -> *). Quote m => m Bang -> m Type -> m BangType
bangType (forall (m :: * -> *).
Quote m =>
m SourceUnpackedness -> m SourceStrictness -> m Bang
bang forall (m :: * -> *). Quote m => m SourceUnpackedness
noSourceUnpackedness forall (m :: * -> *). Quote m => m SourceStrictness
noSourceStrictness) Q Type
fieldTy)])
#if MIN_VERSION_template_haskell(2,12,0)
[]
#else
(cxt [])
#endif
[Dec]
wrapperInstances <- String -> Name -> Q [Dec]
makeToSchema String
wrapperNameStr Name
wrapperName
forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ Dec
wrapperNewtypeforall a. a -> [a] -> [a]
:[Dec]
wrapperInstances