diff options
Diffstat (limited to 'Runnable.hs')
| -rw-r--r-- | Runnable.hs | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/Runnable.hs b/Runnable.hs index 9191697..2f55e7f 100644 --- a/Runnable.hs +++ b/Runnable.hs @@ -26,10 +26,8 @@ import Text.ParserCombinators.ReadPrec import Config (runnableTypes) import Commands -data Runnable = forall r . (Exec r,Show r, Read r) => Run r +data Runnable = forall r . (Exec r, Read r) => Run r -instance Show Runnable where - show (Run a) = "Run " ++ show a instance Exec Runnable where run (Run a) = run a @@ -46,7 +44,7 @@ class ReadAsAnyOf ts ex where instance ReadAsAnyOf () ex where readAsAnyOf ~() = mzero -instance (Read t, Show t, Exec t, ReadAsAnyOf ts Runnable) => ReadAsAnyOf (t,ts) Runnable where +instance (Read t, Exec t, ReadAsAnyOf ts Runnable) => ReadAsAnyOf (t,ts) Runnable where readAsAnyOf ~(t,ts) = r t `mplus` readAsAnyOf ts where r ty = do { m <- readPrec; return (Run (m `asTypeOf` ty)) } |