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-rw-r--r--src/Text/Pandoc/Lua/Marshaling/CommonState.hs102
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diff --git a/src/Text/Pandoc/Lua/Marshaling/CommonState.hs b/src/Text/Pandoc/Lua/Marshaling/CommonState.hs
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--- a/src/Text/Pandoc/Lua/Marshaling/CommonState.hs
+++ /dev/null
@@ -1,102 +0,0 @@
-{-# OPTIONS_GHC -fno-warn-orphans #-}
-{-# LANGUAGE LambdaCase #-}
-{-# LANGUAGE OverloadedStrings #-}
-{- |
- Module : Text.Pandoc.Lua.Marshaling.CommonState
- Copyright : © 2012-2021 John MacFarlane
- © 2017-2021 Albert Krewinkel
- License : GNU GPL, version 2 or above
- Maintainer : Albert Krewinkel <tarleb+pandoc@moltkeplatz.de>
- Stability : alpha
-
-Instances to marshal (push) and unmarshal (peek) the common state.
--}
-module Text.Pandoc.Lua.Marshaling.CommonState () where
-
-import Foreign.Lua (Lua, Peekable, Pushable)
-import Foreign.Lua.Types.Peekable (reportValueOnFailure)
-import Foreign.Lua.Userdata (ensureUserdataMetatable, pushAnyWithMetatable,
- toAnyWithName)
-import Text.Pandoc.Class (CommonState (..))
-import Text.Pandoc.Logging (LogMessage, showLogMessage)
-import Text.Pandoc.Lua.Marshaling.AnyValue (AnyValue (..))
-
-import qualified Data.Map as Map
-import qualified Data.Text as Text
-import qualified Foreign.Lua as Lua
-import qualified Text.Pandoc.Lua.Util as LuaUtil
-
--- | Name used by Lua for the @CommonState@ type.
-commonStateTypeName :: String
-commonStateTypeName = "Pandoc CommonState"
-
-instance Peekable CommonState where
- peek idx = reportValueOnFailure commonStateTypeName
- (`toAnyWithName` commonStateTypeName) idx
-
-instance Pushable CommonState where
- push st = pushAnyWithMetatable pushCommonStateMetatable st
- where
- pushCommonStateMetatable = ensureUserdataMetatable commonStateTypeName $ do
- LuaUtil.addFunction "__index" indexCommonState
- LuaUtil.addFunction "__pairs" pairsCommonState
-
-indexCommonState :: CommonState -> AnyValue -> Lua Lua.NumResults
-indexCommonState st (AnyValue idx) = Lua.ltype idx >>= \case
- Lua.TypeString -> 1 <$ (Lua.peek idx >>= pushField)
- _ -> 1 <$ Lua.pushnil
- where
- pushField :: Text.Text -> Lua ()
- pushField name = case lookup name commonStateFields of
- Just pushValue -> pushValue st
- Nothing -> Lua.pushnil
-
-pairsCommonState :: CommonState -> Lua Lua.NumResults
-pairsCommonState st = do
- Lua.pushHaskellFunction nextFn
- Lua.pushnil
- Lua.pushnil
- return 3
- where
- nextFn :: AnyValue -> AnyValue -> Lua Lua.NumResults
- nextFn _ (AnyValue idx) =
- Lua.ltype idx >>= \case
- Lua.TypeNil -> case commonStateFields of
- [] -> 2 <$ (Lua.pushnil *> Lua.pushnil)
- (key, pushValue):_ -> 2 <$ (Lua.push key *> pushValue st)
- Lua.TypeString -> do
- key <- Lua.peek idx
- case tail $ dropWhile ((/= key) . fst) commonStateFields of
- [] -> 2 <$ (Lua.pushnil *> Lua.pushnil)
- (nextKey, pushValue):_ -> 2 <$ (Lua.push nextKey *> pushValue st)
- _ -> 2 <$ (Lua.pushnil *> Lua.pushnil)
-
-commonStateFields :: [(Text.Text, CommonState -> Lua ())]
-commonStateFields =
- [ ("input_files", Lua.push . stInputFiles)
- , ("output_file", Lua.push . Lua.Optional . stOutputFile)
- , ("log", Lua.push . stLog)
- , ("request_headers", Lua.push . Map.fromList . stRequestHeaders)
- , ("resource_path", Lua.push . stResourcePath)
- , ("source_url", Lua.push . Lua.Optional . stSourceURL)
- , ("user_data_dir", Lua.push . Lua.Optional . stUserDataDir)
- , ("trace", Lua.push . stTrace)
- , ("verbosity", Lua.push . show . stVerbosity)
- ]
-
--- | Name used by Lua for the @CommonState@ type.
-logMessageTypeName :: String
-logMessageTypeName = "Pandoc LogMessage"
-
-instance Peekable LogMessage where
- peek idx = reportValueOnFailure logMessageTypeName
- (`toAnyWithName` logMessageTypeName) idx
-
-instance Pushable LogMessage where
- push msg = pushAnyWithMetatable pushLogMessageMetatable msg
- where
- pushLogMessageMetatable = ensureUserdataMetatable logMessageTypeName $
- LuaUtil.addFunction "__tostring" tostringLogMessage
-
-tostringLogMessage :: LogMessage -> Lua Text.Text
-tostringLogMessage = return . showLogMessage