:browse limitations (browsing virtual namespaces, listing namespaces)
- :browse cannot be used with virtual namespaces:
import Prelude () import qualified Data.List as Folds(foldr) import qualified Data.Maybe as Folds(maybe)
*Main> :browse *Main Folds.foldr :: (a -> b -> b) -> b -> [a] -> b Folds.maybe :: b -> (a -> b) -> Data.Maybe.Maybe a -> b *Main> :browse *Folds Could not find module `Folds': Use -v to see a list of the files searched for.
it would be useful if GHCi's :browse supported this Haskell module system feature, allowing "virtual" namespaces to be browsed just like "real" ones.
- to use :browse, one needs to know the precise module name
when using some packages, like OpenGL, i never can remember where in the hierarchy their modules are placed, so i can't even get started :browsing them.
(a) it would be useful if
ghc-pkg functionality was part of the
GHC API, and accessible from within GHCi, or if GHCi knew which instance of
ghc-pkg it is associated with (
:!ghc-pkg field OpenGL exposed-modules does not work unless the ghc-pkg in the PATH happens to match the GHCi in use..).
(b) it would be nicer if GHCi's
:browse itself had an option to list available namespaces matching a pattern, so that one could narrow down to what one wants to