Stefan O'Rear wrote:
On Thu, Apr 12, 2007 at 01:04:13PM +0100, Joel Reymont wrote:
Folks,
The ghc/compiler/typecheck directory holds a rather large body of
code and quick browsing through did not produce any insight.
How do you implement type checking in haskell?
Assume I have an Expr type
It's so much easier to write the type checker because it's only a few
constructs left in the language. But from a user's perspective it's
a really bad idea.
-- Lennart
On Apr 12, 2007, at 15:25 , Joel Reymont wrote:
On Apr 12, 2007, at 3:00 PM, Stefan O'Rear wrote:
Also, GHC run
On 4/12/07, Joel Reymont <[EMAIL PROTECTED]> wrote:
What would be the benefit of running type checking after desugaring?
After desugaring, the program is written in a much more simple
language (GHC Core). Type checking a desugared program is much easier
because the type checker has to deal with
On Apr 12, 2007, at 3:00 PM, Stefan O'Rear wrote:
Also, GHC runs typechecking *before* desugaring, apparently
thinking error messages
are more important than programmer sanity :)
What would be the benefit of running type checking after desugaring?
--
http://wagerlabs.com/
Thanks Stefan!
On Apr 12, 2007, at 3:00 PM, Stefan O'Rear wrote:
Your problem, as I understand it, is even simpler than most since
there are no higher order functions and no arguments.
I do have functions and arguments but I don't have HOF.
(That said, it would probably be better to fuse pa
On Thu, Apr 12, 2007 at 01:04:13PM +0100, Joel Reymont wrote:
> Folks,
>
> The ghc/compiler/typecheck directory holds a rather large body of
> code and quick browsing through did not produce any insight.
>
> How do you implement type checking in haskell?
>
> Assume I have an Expr type with a c
Hi Joel,
You may like to check out my mini-interpreter called (cheekily) baskell:
http://www.cs.mu.oz.au/~bjpop/code.html
It has type inference, and it is pretty straightforward. I wrote it for
teaching purposes.
First, I pass over the AST and generate a set of typing constraints. They
are j
On Apr 12, 2007, at 1:07 PM, Stefan Holdermans wrote:
You might want to check out "Typing Haskell in Haskell" [1] by Mark
P. Jones.
Must be _the_ paper as Don suggested it as well.
I also looked at my copy of Andrew Appel's compilers in ML book and
realized that I should be going about it
Joel,
How do you implement type checking in haskell?
You might want to check out "Typing Haskell in Haskell" [1] by Mark
P. Jones.
Cheers,
Stefan
[1] Jones, Mark P. Typing Haskell in Haskell. In Erik Meijer, editor,
Proceedings of the 1999 Haskell Workshop, Friday October 9th, 1999,
