[Haskell-cafe] The best way to call Java from Haskell?

Michael Snoyman michael at snoyman.com
Tue Oct 11 09:19:35 CEST 2011

On Tue, Oct 11, 2011 at 8:53 AM, Karel Gardas <karel.gardas at centrum.cz> wrote:
> On 10/11/11 08:23 AM, Michael Snoyman wrote:
>> So for my use case, I don't care at all about interacting with Java
>> code, I simply want to be able to turn my existing Haskell code into a
>> JAR file. This seems like a much simpler undertaking, but I'm still
>> not aware of any way to get this to happen right now either.
> LambdaVM do exactly what you like, but is experimental and unfortunately
> out-dated. It's based on pre ghc 6.8:
> $ ./compiler/stage1/ghc-inplace --version
> The Glorious Glasgow Haskell Compilation System, version 6.7.20081028
> anyway, for hello world like examples it's working well, although
> benchmarking shows that it's slower on the same code then frege for example
> (testing just naive fib to compare recursion speed)
> I've contacted author several times and asked for updating or help with
> updating it to latest GHC HEAD but received no reply so far and
> unfortunately my Haskell knowledge is kind of enough to write just this
> hello world...
> Karel

Yes, I really wish LambdaVM were alive and kicking. I've never
actually hacked on GHC itself, but this might be the impetus to get me
started. I might have some time to look at this in more depth a few
months from now.


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