Ori Bernstein <ori@eigenstate.org> wro= te:
Myrddin is a language that I put together for fun, =
but which has developed
delusions of usefulness. It's a complete rei=
nvention of the wheel, from the
ground up. Some of the major things =
you'll notice about it:

    - Type inference. Types are inferr=
ed across the whole program.
    - Algebraic data types.
    - =
And their friend, pattern matching.
    - Generics.
    - A pac=
kage system.
    - Low level control over memory and such.
    =
- (Almost) no runtime library.
    - Self contained.

For =
more details, you can look at the language website:

    http://eigenstate.org/myrddin

Myrddin has been ported to Plan 9/amd64, tested on 9front. I have=
n't been able
to get 9atom's amd64 kernel to boot on virtual hardwar=
e yet, so it hasn't been
tested there.

The compiler and l=
ibstd should build out of the box using the
provided
mkfiles. The libs used for mbld currently need either mbld =
or gnu make in
order to build, or you can run myrbuild by hand. I've=
 provided a script that
does the latter.

Almost all Plan =
9 system calls are directly supported in libsys.
As with Linux/Unix,=
 only amd64 targets are supported at the moment.

To bootstrap =
the code on Plan 9, the following script is provided:

 http://eigenstate.org/myrddi=
n/getmyr.rc

You can grab the script and run it as follows:=


 ; hget h=
ttp://eigenstate.org/myrddin/getmyr.rc > getmyr.rc
 ; chmod +=
x getmyr.rc
 ; getmyr.rc
 ...a lot of cloning and building happ=
ens...
 ; sam helloworld.myr

For ease of hacking on Plan =
9, I've added mercurial mirrors of the
compiler and some libraries t=
o bitbucket:

 http://bitbucket.com/oridb/mc<=
br /> http://bitbucket.com/=
oridb/libbio
 ht=
tp://bitbucket.com/oridb/libregex
 http://bitbucket.com/oridb/libcryptohash
 http://bitbucket.com/ori=
db/libdate
 http://b=
itbucket.com/oridb/mbld

There are a number of TODOs, of co=
urse:

 - Libdate needs to learn how to parse Plan 9 timezone f=
iles.
 - Libstd needs to get a smarter allocator for large allocatio=
ns.
 - More libraries: lib9p, libdraw, etc... all need to be written=
.
 - A bit more thought needs to be given nicer, portable APIs.
 - More Plan 9 integration.

And general work to get Myrddin t=
o the point of day to day usability,
int terms of
faster binaries, more libraries, and so on.

Still, if anyone f=
inds this interesting/useful -- have at it. If you
manage to do some=
thing neat, let me know!