fix: generalize all Affs to MonadAffs

src/Pipes.Node.FS.purs

@@ -2,9 +2,11 @@ module Pipes.Node.FS where
 
 import Prelude
 
+import Control.Monad.Error.Class (class MonadThrow)
 import Data.Maybe (Maybe)
-import Effect.Aff (Aff)
+import Effect.Aff.Class (class MonadAff)
 import Effect.Class (liftEffect)
+import Effect.Exception (Error)
 import Node.Buffer (Buffer)
 import Node.FS.Stream (WriteStreamOptions)
 import Node.FS.Stream as FS.Stream
@@ -22,11 +24,13 @@ import Prim.Row (class Union)
 -- | See `Pipes.Node.Stream.withEOS` for converting `Producer a`
 -- | into `Producer (Maybe a)`, emitting `Nothing` before exiting.
 write
-  :: forall r trash
+  :: forall r trash m
    . Union r trash WriteStreamOptions
+  => MonadAff m
+  => MonadThrow Error m
   => Record r
   -> FilePath
-  -> Consumer (Maybe Buffer) Aff Unit
+  -> Consumer (Maybe Buffer) m Unit
 write o p = do
   w <- liftEffect $ FS.Stream.createWriteStream' p o
   fromWritable $ O.fromBufferWritable w
@@ -34,26 +38,26 @@ write o p = do
 -- | Open a file in write mode, failing if the file already exists.
 -- |
 -- | `write {flags: "wx"}`
-create :: FilePath -> Consumer (Maybe Buffer) Aff Unit
+create :: forall m. MonadAff m => MonadThrow Error m => FilePath -> Consumer (Maybe Buffer) m Unit
 create = write { flags: "wx" }
 
 -- | Open a file in write mode, truncating it if the file already exists.
 -- |
 -- | `write {flags: "w"}`
-truncate :: FilePath -> Consumer (Maybe Buffer) Aff Unit
+truncate :: forall m. MonadAff m => MonadThrow Error m => FilePath -> Consumer (Maybe Buffer) m Unit
 truncate = write { flags: "w" }
 
 -- | Open a file in write mode, appending written contents if the file already exists.
 -- |
 -- | `write {flags: "a"}`
-append :: FilePath -> Consumer (Maybe Buffer) Aff Unit
+append :: forall m. MonadAff m => MonadThrow Error m => FilePath -> Consumer (Maybe Buffer) m Unit
 append = write { flags: "a" }
 
 -- | Creates a `fs.Readable` stream for the file at the given path.
 -- |
 -- | Emits `Nothing` before closing. To opt out of this behavior,
 -- | use `Pipes.Node.Stream.withoutEOS` or `Pipes.Node.Stream.unEOS`.
-read :: FilePath -> Producer (Maybe Buffer) Aff Unit
+read :: forall m. MonadAff m => MonadThrow Error m => FilePath -> Producer (Maybe Buffer) m Unit
 read p = do
   r <- liftEffect $ FS.Stream.createReadStream p
   fromReadable $ O.fromBufferReadable r

src/Pipes.Node.Stream.purs

@@ -2,7 +2,7 @@ module Pipes.Node.Stream where
 
 import Prelude
 
-import Control.Monad.Error.Class (throwError)
+import Control.Monad.Error.Class (class MonadThrow, throwError)
 import Control.Monad.Rec.Class (class MonadRec, Step(..), tailRecM)
 import Control.Monad.ST.Class (liftST)
 import Control.Monad.ST.Ref as STRef
@@ -11,9 +11,10 @@ import Data.Maybe (Maybe(..))
 import Data.Newtype (wrap)
 import Data.Traversable (for_)
 import Data.Tuple.Nested ((/\))
-import Effect.Aff (Aff, delay)
+import Effect.Aff (delay)
-import Effect.Aff.Class (liftAff)
+import Effect.Aff.Class (class MonadAff, liftAff)
 import Effect.Class (liftEffect)
+import Effect.Exception (Error)
 import Node.Stream.Object as O
 import Pipes (await, yield)
 import Pipes (for) as P
@@ -25,7 +26,7 @@ import Pipes.Util (InvokeResult(..), invoke)
 -- |
 -- | This will yield `Nothing` before exiting, signaling
 -- | End-of-stream.
-fromReadable :: forall s a. O.Read s a => s -> Producer_ (Maybe a) Aff Unit
+fromReadable :: forall s a m. MonadThrow Error m => MonadAff m => O.Read s a => s -> Producer_ (Maybe a) m Unit
 fromReadable r =
   let
     cleanup rmErrorListener = do
@@ -40,7 +41,7 @@ fromReadable r =
       res <- liftEffect $ O.read r
       case res of
         O.ReadJust a -> yield (Just a) $> Loop { error, cancel }
-        O.ReadWouldBlock -> lift (O.awaitReadableOrClosed r) $> Loop { error, cancel }
+        O.ReadWouldBlock -> liftAff (O.awaitReadableOrClosed r) $> Loop { error, cancel }
         O.ReadClosed -> yield Nothing *> cleanup cancel
   in
     do
@@ -51,7 +52,7 @@ fromReadable r =
 -- |
 -- | When `Nothing` is piped to this, the stream will
 -- | be `end`ed, and the pipe will noop if invoked again.
-fromWritable :: forall s a. O.Write s a => s -> Consumer (Maybe a) Aff Unit
+fromWritable :: forall s a m. MonadThrow Error m => MonadAff m => O.Write s a => s -> Consumer (Maybe a) m Unit
 fromWritable w =
   let
     cleanup rmErrorListener = do
@@ -84,7 +85,7 @@ fromWritable w =
 -- |
 -- | When `Nothing` is piped to this, the `Transform` stream will
 -- | be `end`ed, and the pipe will noop if invoked again.
-fromTransform :: forall a b. O.Transform a b -> Pipe (Maybe a) (Maybe b) Aff Unit
+fromTransform :: forall a b m. MonadThrow Error m => MonadAff m => O.Transform a b -> Pipe (Maybe a) (Maybe b) m Unit
 fromTransform t =
   let
     cleanup removeErrorListener = do
@@ -113,7 +114,7 @@ fromTransform t =
             O.WriteClosed -> cleanup cancel
             O.WriteOk -> pure $ Loop { error, cancel }
             O.WriteWouldBlock -> do
-              lift (O.awaitWritableOrClosed t)
+              liftAff $ O.awaitWritableOrClosed t
               pure $ Loop { error, cancel }
   in
     do
@@ -123,13 +124,13 @@ fromTransform t =
 -- | Given a `Producer` of values, wrap them in `Just`.
 -- |
 -- | Before the `Producer` exits, emits `Nothing` as an End-of-stream signal.
-withEOS :: forall a. Producer a Aff Unit -> Producer (Maybe a) Aff Unit
+withEOS :: forall a m. Monad m => Producer a m Unit -> Producer (Maybe a) m Unit
 withEOS a = do
   P.for a (yield <<< Just)
   yield Nothing
 
 -- | Strip a pipeline of the EOS signal
-unEOS :: forall a. Pipe (Maybe a) a Aff Unit
+unEOS :: forall a m. Monad m => Pipe (Maybe a) a m Unit
 unEOS = P.mapFoldable identity
 
 -- | Lift a `Pipe a a` to `Pipe (Maybe a) (Maybe a)`.

src/Pipes.Node.Zlib.purs

@@ -2,10 +2,12 @@ module Pipes.Node.Zlib where
 
 import Prelude
 
+import Control.Monad.Error.Class (class MonadThrow)
 import Data.Maybe (Maybe)
 import Effect (Effect)
-import Effect.Aff (Aff)
+import Effect.Aff.Class (class MonadAff)
 import Effect.Class (liftEffect)
+import Effect.Exception (Error)
 import Node.Buffer (Buffer)
 import Node.Stream.Object as O
 import Node.Zlib as Zlib
@@ -13,28 +15,28 @@ import Node.Zlib.Types (ZlibStream)
 import Pipes.Core (Pipe)
 import Pipes.Node.Stream (fromTransform)
 
-fromZlib :: forall r. Effect (ZlibStream r) -> Pipe (Maybe Buffer) (Maybe Buffer) Aff Unit
+fromZlib :: forall r m. MonadAff m => MonadThrow Error m => Effect (ZlibStream r) -> Pipe (Maybe Buffer) (Maybe Buffer) m Unit
 fromZlib z = do
   raw <- liftEffect $ Zlib.toDuplex <$> z
   fromTransform $ O.fromBufferTransform raw
 
-gzip :: Pipe (Maybe Buffer) (Maybe Buffer) Aff Unit
+gzip :: forall m. MonadAff m => MonadThrow Error m => Pipe (Maybe Buffer) (Maybe Buffer) m Unit
 gzip = fromZlib Zlib.createGzip
 
-gunzip :: Pipe (Maybe Buffer) (Maybe Buffer) Aff Unit
+gunzip :: forall m. MonadAff m => MonadThrow Error m => Pipe (Maybe Buffer) (Maybe Buffer) m Unit
 gunzip = fromZlib Zlib.createGunzip
 
-unzip :: Pipe (Maybe Buffer) (Maybe Buffer) Aff Unit
+unzip :: forall m. MonadAff m => MonadThrow Error m => Pipe (Maybe Buffer) (Maybe Buffer) m Unit
 unzip = fromZlib Zlib.createUnzip
 
-inflate :: Pipe (Maybe Buffer) (Maybe Buffer) Aff Unit
+inflate :: forall m. MonadAff m => MonadThrow Error m => Pipe (Maybe Buffer) (Maybe Buffer) m Unit
 inflate = fromZlib Zlib.createInflate
 
-deflate :: Pipe (Maybe Buffer) (Maybe Buffer) Aff Unit
+deflate :: forall m. MonadAff m => MonadThrow Error m => Pipe (Maybe Buffer) (Maybe Buffer) m Unit
 deflate = fromZlib Zlib.createDeflate
 
-brotliCompress :: Pipe (Maybe Buffer) (Maybe Buffer) Aff Unit
+brotliCompress :: forall m. MonadAff m => MonadThrow Error m => Pipe (Maybe Buffer) (Maybe Buffer) m Unit
 brotliCompress = fromZlib Zlib.createBrotliCompress
 
-brotliDecompress :: Pipe (Maybe Buffer) (Maybe Buffer) Aff Unit
+brotliDecompress :: forall m. MonadAff m => MonadThrow Error m => Pipe (Maybe Buffer) (Maybe Buffer) m Unit
 brotliDecompress = fromZlib Zlib.createBrotliDecompress