[Haskell-cafe] A Java bytecode interpreter written in Haskell
asviraspossible at gmail.com
Thu May 26 11:05:37 UTC 2016
On Wed, May 25, 2016 at 8:21 PM, Erik Dominikus <erik.dominikus71 at gmail.com>
> Interesting idea. Yes, in principle we could implement a JVM where all
> java.lang.Thread instances are green threads, and all IO operations
> are nonblocking, just like GHC runtime, and this will allow Java
> programmers to write code in the easiest way (just new Thread()
> everywhere) without performance penalty.
Exactly. I don't know if it is really feasible, though.
There is already Quasar project for Java, but it has it's limits since
it work by bytecode preprocessing.
Streaght forward JVM with green threads should be cool.
> On Wed, May 25, 2016 at 3:25 PM, Victor Nazarov
> <asviraspossible at gmail.com> wrote:
> > On Tue, May 24, 2016 at 8:43 PM, Erik Dominikus <
> erik.dominikus71 at gmail.com>
> > wrote:
> >> (Please keep expectations low for now; this is just a weekend project.)
> >> I have written, in Haskell, something that aspires to be a Java
> >> Virtual Machine (but I don't call it a JVM yet as it doesn't fully
> >> comply with the spec). The code is available here:
> >> https://github.com/edom/haji
> >> This is similar to Frege , but while Frege aims to run a variant of
> >> Haskell on Java, this project tries the other direction: running a
> >> subset of Java on Haskell.
> > I think it can be really interesting for Java community if you implement
> > Java-runtime directly the same way GHC-runtime is implemented, i.e.
> > Java-threads as GHC's IO-threads (i. e. green threads) and Java-I/O as
> > input-output (which is asynchronous internally to support green-threading
> > model).
> > --
> > Victor Nazarov
> >> Some related stuffs:
> >>  https://github.com/MateVM/MateVM
> >>  https://hackage.haskell.org/package/hs-java
> >>  https://github.com/Frege/frege
> >> 
> >>  https://github.com/levans/Open-Quark
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