Re: [Yhc] is YHC dead?

Hi,

I've managed to use old Brian Alliet project yhc2jvm to compile some hello-world haskell code to JVM. I'm close to having a custom JVM ClassLoader load and translate YHC's bytecode on the fly.

Very cool!

I haven't looked much into YHC internals so far (I'm still a Haskell newbie). Does it do any optimizations on the code before or after yhc core is produced?

No, it doesn't even optimise things like "otherwise", so you see lots of things like case otherwise of True -> real code; False -> error.

If JavaScript is created straight from Yhc.Core than maybe I'd be also better to produce JVM bytecode without YHC bytecode phase...

It's your choice entirely. The pipeline is Haskell -> Core -> bytecode. You can jump in at any level - I wouldn't be able to say which of Core/bytecode makes a more appropriate target.

BTW, I've tried other aproaches to executing Haskell on JVM: http://code.google.com/p/jhugs/ ;-)

Your work sounds cool, so I would encourage you to try and replicate some of these results in GHC (which also has Core and a bytecode, although in fairly different ways). GHC is a lot more work to get to grips with, but your results will be much more widely useful - allowing others to play with your ideas. Thanks, Neil

On Sun, Apr 3, 2011 at 8:50 PM, Neil Mitchell wrote:

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Yhc is indeed dead. I've posted a blog post (http://yhc06.blogspot.com/2011/04/yhc-is-dead.html) and updated the wiki (http://haskell.org/haskellwiki/Yhc).

Thanks, Neil

On Fri, Apr 1, 2011 at 12:53 PM, Malcolm Wallace wrote:

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  Is YHC compiler project still alive?

No.  There has been no-one working on YHC for at least two years now.

Regards,    Malcolm

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