#2345: :browse limitations (browsing virtual namespaces, listing namespaces)
--------------------------------+-------------------------------------------
Reporter: claus | Owner:
Type: feature request | Status: new
Priority: normal | Component: GHCi
Version: 6.8.2 | Severity: normal
Keywords: | Testcase:
Architecture: Unknown | Os: Unknown
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1. :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.
2. 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 `:browse`
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2345>
GHC <http://www.haskell.org/ghc/>
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