I've sent this msg to the ghc main mailing list, but this one is more
adequate. I've tried this with both ghc 5.02.3/5.02.2, SuSE RPMs.
Thanks in advance,
J.A.
-------------------------------------------------------------------------------
[1] Bug1?
This declaration:
> data A = (,) Int Int
is accepted by ghci. Is this behaveour correct,
1. It kind of shadows (,) is defined in PrelTup meaning that you can no longer
use (,) prefix to refer to tuples - like (,) 1 2.
2. Seems to me like (,) is not correct syntax for a consym as defined in the
H98 Report so we shouldn't be able to redefine it.
Note: didn't check any other interpreter/compiler.
[2] Bug2?
- Step 1
Load this in ghci,
-----------------------
module Test where
data C = C ((,) Int Int)
data A = (,) !Int !Int
h :: A
h = (,) 1 2
{-
f :: C
f = C ((,) 3 4)
-}
------------------------
- Step 2
Uncomment the f function. (you'll get an error)
- Step 3
To get rid of the error comment out the 'data A' declaration and function 'h'.
Now you should get this error message:
-------------------------------------------------
Failed to find interface decl for `Teste.A'
from module `Teste'
-------------------------------------------------
Quiting ghci and then reloading the file works fine.
J.A.
_______________________________________________
Glasgow-haskell-bugs mailing list
[EMAIL PROTECTED]
http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
