Safe Haskell	None
Language	Haskell2010

GHC.Tc.Types.TcRef

Synopsis

type TcRef a = IORef a
newTcRef :: MonadIO m => a -> m (TcRef a)
readTcRef :: MonadIO m => TcRef a -> m a
writeTcRef :: MonadIO m => TcRef a -> a -> m ()
updTcRef :: MonadIO m => TcRef a -> (a -> a) -> m ()
updTcRefM :: MonadIO m => TcRef a -> (a -> m a) -> m ()

Documentation

type TcRef a = IORef a Source #

Type alias for IORef; the convention is we'll use this for mutable bits of data in the typechecker which are updated during typechecking and returned at the end.

newTcRef :: MonadIO m => a -> m (TcRef a) Source #

readTcRef :: MonadIO m => TcRef a -> m a Source #

writeTcRef :: MonadIO m => TcRef a -> a -> m () Source #

updTcRef :: MonadIO m => TcRef a -> (a -> a) -> m () Source #

updTcRefM :: MonadIO m => TcRef a -> (a -> m a) -> m () Source #