new recursive do notation (ghc 6.12.x) spoils layout
jvlask at hotmail.com
Mon Jun 21 13:44:08 EDT 2010
> I think this would just require the lex layout rules already in place for
> do/let in GHC; my guess is that your example would work if the body were
> indented past the "r" of "rec".
for the record ...
> t2 =
> do rec
> a <- getChar
> b <- f c
> c <- g b
> putChar c
> return b
> f = return . (const 'a')
> g = return
The last statement in a 'do' construct must be an expression
Failed, modules loaded: none.
so I suppose it is not so far from "recognising" the construct and yet
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