mirror of
https://github.com/urbit/shrub.git
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297 lines
7.6 KiB
Haskell
297 lines
7.6 KiB
Haskell
{-# LANGUAGE StrictData #-}
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-- This is required due to the use of 'Void' in a constructor slot in
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-- combination with 'deriveNoun' which generates an unreachable pattern.
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{-# OPTIONS_GHC -Wno-overlapping-patterns #-}
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{-|
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Effect Types and Their Noun Conversions
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-}
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module Urbit.Arvo.Effect where
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import Urbit.Noun.Time
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import Urbit.Prelude
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import Control.Monad.Fail (fail)
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import Numeric.Natural (Natural)
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import Urbit.Arvo.Common (KingId(..), ServId(..))
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import Urbit.Arvo.Common (Header, HttpEvent, HttpServerConf, Method, Mime)
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import Urbit.Arvo.Common (AmesDest, Turf)
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import Urbit.Arvo.Common (ReOrg(..), reorgThroughNoun)
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import Urbit.Arvo.Common (Desk, Wynn)
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-- Newt Effects ----------------------------------------------------------------
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{-|
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%turf -- Set which domain names we've bound.
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%send -- Send a UDP packet.
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-}
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data NewtEf
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= NewtEfTurf (Atom, ()) [Turf]
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| NewtEfSend (Atom, ()) AmesDest Bytes
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deriving (Eq, Ord, Show)
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deriveNoun ''NewtEf
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-- HTTP Client Effects ---------------------------------------------------------
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data HttpClientReq = HttpClientReq
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{ method :: Method
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, url :: Cord
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, headerList :: [Header]
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, body :: Maybe Octs
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}
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deriving (Eq, Ord, Show)
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{-|
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%request -- TODO
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%cancel-request -- TODO
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-}
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data HttpClientEf
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= HCERequest (Atom, ()) Word HttpClientReq
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| HCECancelRequest Path Word
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deriving (Eq, Ord, Show)
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deriveNoun ''HttpClientReq
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deriveNoun ''HttpClientEf
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-- HTTP Server Effects ---------------------------------------------------------
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{-|
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%set-config -- Update HTTP server configuration.
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%response -- Respond to an active HTTP request.
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-}
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data HttpServerEf
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= HSESetConfig (ServId, ()) HttpServerConf
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| HSEResponse (ServId, UD, UD, ()) HttpEvent
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deriving (Eq, Ord, Show)
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deriveNoun ''HttpServerEf
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-- File System Effects ---------------------------------------------------------
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{-|
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%hill -- TODO
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%dirk -- mark mount dirty
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%ergo -- TODO
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%ogre -- TODO
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-}
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data SyncEf
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= SyncEfHill () [Desk]
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| SyncEfDirk Path Desk
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| SyncEfErgo Path Desk [(Path, Maybe Mime)]
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| SyncEfOgre Path Desk
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deriving (Eq, Ord, Show)
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deriveNoun ''SyncEf
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-- Timer Effects ---------------------------------------------------------------
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{-|
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%doze -- Set or clear timer.
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%void -- Nasty hack to make the parser not treat this as a record.
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-}
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data BehnEf
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= BehnEfDoze (KingId, ()) (Maybe Wen)
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| BehnEfVoid Void
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deriving (Eq, Ord, Show)
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deriveNoun ''BehnEf
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-- Terminal Effects ------------------------------------------------------------
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{-|
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%bel -- TODO
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%clr -- TODO
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%hop -- TODO
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%lin -- TODO
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%mor -- TODO
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%sag -- TODO
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%sav -- TODO
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%url -- TODO
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-}
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data Blit
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= Bel ()
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| Clr ()
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| Hop Word64
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| Klr Stub
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| Lin [Char]
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| Mor ()
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| Sag Path Noun
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| Sav Path Atom
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| Url Cord
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deriving (Eq, Ord)
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data Deco
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= DecoBl
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| DecoBr
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| DecoUn
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| DecoNull
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deriving (Eq, Ord, Show)
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data Tint
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= TintR
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| TintG
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| TintB
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| TintC
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| TintM
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| TintY
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| TintK
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| TintW
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| TintNull
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| TintTrue Word8 Word8 Word8
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deriving (Eq, Ord, Show)
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data Stye = Stye
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{ deco :: (HoonSet Deco)
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, back :: Tint
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, fore :: Tint
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}
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deriving (Eq, Ord, Show)
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newtype Stub = Stub [(Stye, [Char])]
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deriving (Eq, Ord, Show)
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instance ToNoun Deco where
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toNoun = \case
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DecoBl -> toNoun $ Cord "bl"
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DecoBr -> toNoun $ Cord "br"
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DecoUn -> toNoun $ Cord "un"
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DecoNull -> Atom 0
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instance FromNoun Deco where
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parseNoun = named "Deco" . \case
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Atom 0 -> pure DecoNull
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n -> parseNoun @Cord n <&> unCord >>= \case
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"bl" -> pure DecoBl
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"br" -> pure DecoBr
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"un" -> pure DecoUn
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t -> fail ("invalid: " <> unpack t)
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instance ToNoun Tint where
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toNoun = \case
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TintR -> toNoun $ Cord "r"
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TintG -> toNoun $ Cord "g"
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TintB -> toNoun $ Cord "b"
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TintC -> toNoun $ Cord "c"
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TintM -> toNoun $ Cord "m"
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TintY -> toNoun $ Cord "y"
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TintK -> toNoun $ Cord "k"
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TintW -> toNoun $ Cord "w"
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TintNull -> Atom 0
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TintTrue r g b -> Cell (atom r) $ Cell (atom g) (atom b)
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where atom a = Atom (fromIntegral a :: Natural)
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instance FromNoun Tint where
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parseNoun = named "Tint" . \case
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Atom 0 -> pure TintNull
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Cell (Atom r) (Cell (Atom g) (Atom b))
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-> pure (TintTrue (word r) (word g) (word b))
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where word w = fromIntegral w :: Word8
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n -> parseNoun @Cord n <&> unCord >>= \case
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"r" -> pure TintR
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"g" -> pure TintG
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"b" -> pure TintB
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"c" -> pure TintC
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"m" -> pure TintM
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"y" -> pure TintY
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"k" -> pure TintK
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"w" -> pure TintW
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t -> fail ("invalid: " <> unpack t)
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-- Manual instance to not save the noun/atom in Sag/Sav, because these can be
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-- megabytes and makes king hang.
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instance Show Blit where
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show (Bel ()) = "Bel ()"
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show (Clr ()) = "Clr ()"
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show (Hop x) = "Hop " ++ (show x)
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show (Klr s) = "Klr " ++ (show s)
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show (Lin c) = "Lin " ++ (show c)
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show (Mor ()) = "Mor ()"
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show (Sag path _) = "Sag " ++ (show path)
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show (Sav path _) = "Sav " ++ (show path)
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show (Url c) = "Url " ++ (show c)
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{-|
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%blip -- TODO
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%init -- TODO
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%logo -- Shutdown
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%mass -- Measure memory usage (unused)
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-}
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data TermEf
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= TermEfBlit (UD, ()) [Blit]
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| TermEfInit (UD, ()) Ship
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| TermEfLogo Path ()
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| TermEfMass Path Noun -- Irrelevant
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deriving (Eq, Ord, Show)
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deriveNoun ''Stye
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deriveNoun ''Stub
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deriveNoun ''Blit
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deriveNoun ''TermEf
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-- IO-Driver Routing -----------------------------------------------------------
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data VaneEf
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= VENewt NewtEf
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| VEHttpClient HttpClientEf
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| VEHttpServer HttpServerEf
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| VEBehn BehnEf
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| VETerm TermEf
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| VEClay SyncEf
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| VESync SyncEf
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| VEBoat SyncEf
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deriving (Eq, Ord, Show)
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deriveNoun ''VaneEf
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-- Top-Level Ef Type -----------------------------------------------------------
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data Ef
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= EfVane VaneEf
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| EfVega Cord EvilPath -- second path component, rest of path
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| EfExit Cord EvilPath -- second path component, rest of path
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| EfWend Wynn
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deriving (Eq, Ord, Show)
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-- XX HACK
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clip :: Noun -> Noun
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clip (C (C _ x) y) = C x y
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clip _ = error "misclip"
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tack :: Noun -> Noun
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tack (C x y) = C (C (A 0) x) y
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tack _ = error "mistack"
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instance ToNoun Ef where
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toNoun = clip . \case
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EfVane v -> toNoun $ reorgThroughNoun ("", v)
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EfExit s p -> toNoun $ ReOrg "" s "exit" p (A 0)
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EfVega s p -> toNoun $ ReOrg "" s "vega" p (A 0)
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EfWend w -> toNoun $ reorgThroughNoun ("", w)
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instance FromNoun Ef where
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parseNoun = tack >>> parseNoun >=> \case
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ReOrg "" s "exit" p (A 0) -> pure (EfExit s p)
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ReOrg "" s "exit" p _ -> fail "%exit effect expects nil value"
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ReOrg "" s "vega" p (A 0) -> pure (EfVega s p)
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ReOrg "" s "vega" p _ -> fail "%vega effect expects nil value"
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ReOrg "" s "wend" p val -> EfWend <$> parseNoun val
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ReOrg "" s tag p val -> EfVane <$> parseNoun (toNoun (s, tag, p, val))
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ReOrg _ _ _ _ _ -> fail "Non-empty first path-element"
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summarizeEffect :: Lenient Ef -> Text
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summarizeEffect ef =
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fromNoun (toNoun ef) & \case
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Nothing -> "//invalid %effect"
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Just (pax :: [Cord], tag :: Cord, val :: Noun) ->
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"/" <> intercalate "/" (unCord <$> pax) <> " %" <> unCord tag
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