#5998: GHCi's :info to return all the visible instances, not just the ones
imported from currently loaded files
  Reporter:  errge             |          Owner:                  
      Type:  feature request   |         Status:  closed          
  Priority:  normal            |      Milestone:  7.6.2           
 Component:  GHCi              |        Version:  7.4.1           
Resolution:  fixed             |       Keywords:  ghci :info      
        Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
   Failure:  None/Unknown      |     Difficulty:  Unknown         
  Testcase:                    |      Blockedby:                  
  Blocking:                    |        Related:                  
Changes (by diatchki):

  * status:  new => closed
  * resolution:  => fixed


 I have documented the new `:info!` functionality.  Just for future
 documentation, here is an example of the use case for this feature:

 In scope:
    instance Monoid Int
    instance Monoid m => Applicative (Accessor m)
 Not in scope:
 With this setup, we can use the instance for `Applicateive (Accessor Int)`
 even though the name `Monoid` is not in scope, but `:info` will not show
 the relevant instance.

Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5998#comment:7>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler

Glasgow-haskell-bugs mailing list

Reply via email to