Difference between revisions of "Hoogle/Bugs"

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Hoogle has plenty of bugs, consider them features until they are fixed :) To report a bug either [[User:NeilMitchell|email me]] or just add it to this list.
 
  +
All Hoogle bugs are now stored on [http://code.google.com/p/ndmitchell/issues/list this bug tracker]. Please do not edit this page.
 
 
 
== Bad Searches ==
 
 
* (a -> b) -> ([a] -> [b]) -- should find map
 
* @hoogle Data.IntMap.IntMap a -> [a] -- badly kills the module names
 
* @hoogle -- , gives copyright message (consequence of argument parsing in command line)
 
* Either, should find Left and Right
 
* @hoogle (\=), bracket does not parse
 
* ThreadID -> IO (), does not find killThread :: ThreadId -> IO () (note Id vs ID)
 
 
=== Higher Kinds ===
 
 
The following searches are all wrong because Hoogle doesn't understand higher kinds, i.e. Monad's.
 
 
* Functor f => (a -> b) -> f a -> f b -- should find fmap
 
* Monad m => [m a] -> m [a] -- should find sequence
 
* (Monad m) => m (m a) -> m a -- should find join
 
 
== Bad UI ==
 
 
* hoogle is a bit stingey with the space limit on the module name, for many modules it cuts them off with "...", i.e. ParseError
 
 
== Bad Ordering ==
 
 
* Ptr a -> IO a [peek should be first]
 
** Foreign.Storable.peekByteOff :: Storable a => Ptr b -> Int -> IO a
 
** Foreign.Storable.peek :: Storable a => Ptr a -> IO a
 
 
== Other Issues ==
 
While trying to run hihoo.pl on the NewBinary library, I received the following problems
 
 
:hihoo is currently unmaintained, I recommend hadhtml. If someone is able to fix it up... --[[User:NeilMitchell|Neil Mitchell]] 19:22, 13 February 2006 (UTC)
 
 
<pre>
 
*** can't parse data or newtype declaration:
 
data MBA
 
Variances []
 
RecFlag NonRecursive
 
Generics: no
 
{- abstract -}
 
*** can't parse data or newtype declaration:
 
data Bin a
 
Variances [(False, False)]
 
RecFlag NonRecursive
 
Generics: no
 
{- abstract -}
 
*** can't parse data declaration:
 
data BinHandle
 
Variances []
 
RecFlag NonRecursive
 
Generics: no
 
= BinMem NewBinary.FastMutInt.FastMutInt{1}
 
NewBinary.FastMutInt.FastMutInt{1}
 
(GHC.IOBase.IORef BinArray)
 
NewBinary.FastMutInt.FastMutInt{1}
 
NewBinary.FastMutInt.FastMutInt{1}
 
Stricts: ! ! ! ! !
 
Fields: off_r sz_r arr_r bit_off_r bit_cache_r |
 
BinIO NewBinary.FastMutInt.FastMutInt{1}
 
GHC.IOBase.Handle
 
NewBinary.FastMutInt.FastMutInt{1}
 
NewBinary.FastMutInt.FastMutInt{1}
 
Stricts: ! ! ! !
 
Fields: off_r hdl bit_off_r bit_cache_r
 
*** can't parse data or newtype declaration:
 
data FastMutInt
 
Variances []
 
RecFlag NonRecursive
 
Generics: no
 
{- abstract -}
 
</pre>
 

Latest revision as of 22:37, 7 August 2008

All Hoogle bugs are now stored on this bug tracker. Please do not edit this page.