Marko Schuetz <[EMAIL PROTECTED]> writes:
> ghc-3.01 complains about a syntax error in the following cut down
> program:
>
> > module Fehler where
> >
> > data Constr
> > = (:<-:) { expr :: LambdaCExpr, context :: ContextTerm }
>
> kinetic% ghc Fehler.hs
> Fehler.hs:4:12: parse error on input: "{"
Yes, it looks like a bug. The following patch should fix it:
*** hsparser.y 1998/01/21 17:37:09 1.16
--- hsparser.y 1998/02/26 10:47:34
***************
*** 755,761 ****
| OPAREN qconsym CPAREN batypes { $$ = mkconstrpre($2,$4,hsplineno); }
/* Con { op1 :: Int } */
! | gtycon OCURLY fields CCURLY { $$ = mkconstrrec($1,$3,hsplineno); }
;
/* 1 S/R conflict on OCURLY -> shift */
--- 755,762 ----
| OPAREN qconsym CPAREN batypes { $$ = mkconstrpre($2,$4,hsplineno); }
/* Con { op1 :: Int } */
! | qtycon OCURLY fields CCURLY { $$ = mkconstrrec($1,$3,hsplineno); }
! | OPAREN qconsym CPAREN OCURLY fields CCURLY { $$ =
mkconstrrec($2,$5,hsplineno); }
;
/* 1 S/R conflict on OCURLY -> shift */
Cheers,
Simon
--
Simon Marlow [EMAIL PROTECTED]
University of Glasgow http://www.dcs.gla.ac.uk/~simonm/
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