[Haskell-cafe] faster compiling for ghc

Bulat Ziganshin bulat.ziganshin at gmail.com
Thu Nov 12 07:39:09 EST 2009

Hello Peter,

Thursday, November 12, 2009, 3:26:21 PM, you wrote:

incremental is just a word. what exactly we mean? ghc, like any other
.obj-generating compiler, doesn't recompile unchanged source files (if
their dependencies aren't changed too). otoh, (my old ghc 6.6)
recompiles Main.hs if imported Sub.hs added new declaration (anyway
unused in Main), so it may be improved some way

> Regarding speeding up linking or compilation, IMO the real speedup you
> would get from incremental compilation & linking. It's okay if the
> initial compilation & linking take a long time, but the duration of
> next c&l iterations should only depend on the number of changes one
> does, not on the total project size.

> On Thu, Nov 12, 2009 at 1:10 PM, Rafal Kolanski <xs at xaph.net> wrote:
>> Bulat Ziganshin wrote:
>>> it's impossible to interpret haskell - how can you do type inference?
>>> hugs, like ghci, is bytecode interpreter. the difference is their
>>> implementation languages - haskell vs C
>> We use Standard ML for the Isabelle/HOL theorem prover, and it's
>> interpreted, even has an interactive toplevel. It uses type inference, does
>> it not? In fact, in a not-very-serious discussion at some point of what one
>> could replace javascript with for a browser-embedded language, SML came up.
>> What makes Haskell so different that it can't be interpreted in the SML
>> style?
>> Sincerely,
>> Rafal Kolanski.
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>> Haskell-Cafe at haskell.org
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Best regards,
 Bulat                            mailto:Bulat.Ziganshin at gmail.com

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