GHC 6.4 release candidates available [GHCi loads incorrectly]

Simon David Foster s.d.f at btinternet.com
Fri Feb 11 09:09:46 EST 2005


And one other niggle, if you try and load a module which doesn't exist
with :m, it doesn't load it, but it still appends it to command-line;

Prelude> :m + My.Module

Top level:
    Failed to load interface for `My.Module':
        Could not find module `My.Module':
          use -v to see a list of the files searched for
Prelude My.Module>

-Si.

On Fri, 2005-02-11 at 13:50 +0000, Simon David Foster wrote:
> If I have two simple modules, Module1 and Module2 like this;
> 
> module Module1 where
> f = "hello"
> 
> module Module2 where
> import Module1
> 
> I load up Module2 in GHCi, and I can evaluate f in Module1;
> 
> Compiling Module1          ( ./Module1.hs, interpreted )
> Compiling Module2          ( Module2.hs, interpreted )
> Ok, modules loaded: Module2, Module1.
> *Module2> f
> "hello"
> 
> Now I change Module1 to
> 
> module Module1 where
> f = "hello2"
> 
> and reload; this happens in the GHC 6.4 RC:
> 
> *Module2> :r
> Compiling Module1          ( ./Module1.hs, interpreted )
> Skipping  Module2          ( Module2.hs, interpreted )
> Ok, modules loaded: Module2, Module1.
> Prelude Module2>
> 
> And I can no longer get at anything in Module1 (this is generally true
> of any imported modules), only stuff in Module2. Instead I have to do a
> full reload. In GHC 6.2, if you did this it reloaded both modules and
> everything was fine, so I'm guessing this is incorrect behaviour.
> 
> -Si.
> 
-- 
Simon David Foster <s.d.f at btinternet.com>



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