You don't mean checking kind, but checking type.
The same argument that can be made for the monomorphism restriction
at base type can be used for function types too.
There is nothing impossible about prefix&postfix operator. Haskell
just happens not to have them. They could be added.
-- Lennart
On Oct 14, 2006, at 10:57 , Bulat Ziganshin wrote:
Hello haskell-prime,
first is the monomorphism restriction. why isn't it possible to check
_kind_ of parameter-less equation and apply monomorphism restrictions
only to values of kind '*'? so, this:
sum = foldr1 (*)
will become polymorphic because its kind is '*->*' while this
exps = 1 : map (2*) exps
will become monomorphic because its kind is *
second is lack of support for prefix/postfix operations. why it is
impossible to do in first pass only lexical analysis of Haskell
program, then split it into sentences, extract all import/infix
operations and only after processing of these operations, having all
the information about operator types and precedence, do the syntax
analysis?
--
Best regards,
Bulat mailto:[EMAIL PROTECTED]
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