First off, I think we should stick with the current compiler for a while.
I think its quicker to package up the compiler for a few platforms, and
look at some of the patches that have been made available for building
thrift with visual studio.

If some folks want to start a branch and work on a java compiler that's
great, go for it, I'd say either a git fork of the thrift git mirror or
if you have commit access put it in a branch of svn (or even in compiler/java,
just leave it disabled by default).  When its as complete as the current
compiler a decision can be made which to use.

However, something to think about is right now there are 49 open issues
for java and 41 for C++, and 252 open issues on the jira.  Before we
add to those issues with a completely new compiler, maybe we should get
the current list down to a manageable level?

And I'd like to see more tests tied into make check for more languages.
I don't think we even have basic functionality.  I figured out last night
while working on a minor issue with the erlang framed transport that
the test/erl/Makefile doesn't even compile the test files and the test
files are never run.  I'll be working on getting some eunit tests
tied into the make check call.

So I guess it summary, while I like the passion this conversation has
created in the community (longest thread in the past year as far as I
can tell), I think the energy has to be put into getting the current
system as solid as possible before working too much on a new system.
The project seems to be at a tipping point now, where it is being
prodded to work through its issues and hopefully graduate out of
incubator status soon.  I think that a new compiler would lead to
a division of energy and a major setback in this area.  After the
project has graduated and hit '1.0' then I'd think this could be
revisited.

Just my 2 cents,

-Anthony

On Fri, Aug 27, 2010 at 07:40:25AM -0700, Bryan Duxbury wrote:
> An alternative would be to have unit tests that cover the basic
> functionality of each of the languages' generated code and make sure those
> keep passing. (I think we should already have these tests, but I don't
> expect anyone to jump up to make them.)
> 
> On Thu, Aug 26, 2010 at 6:41 PM, Todd Lipcon <[email protected]> wrote:
> 
> > On Thu, Aug 26, 2010 at 6:33 PM, Greg Stein <[email protected]> wrote:
> >
> > > ASN.1, huh? I clicked that link. Couldn't find an overview link.
> > > "Papers" and "presentations" and "consortium members" and all that.
> > >
> > > Wikipedia has a more reasonable introduction. All those consortia
> > > members should learn from that, rather than worrying about their
> > > "international standard". :-P
> > >
> > > That said, ASN.1 is about both description and on-wire formats. If
> > > Thrift used ASN as the descriptive language, then people might think
> > > it also uses the same wire format. And ASN.1 might not have things
> > > like field tag numbers, needed by Thrift.
> > >
> > > I don't think we're talking about a new IDL here. Just the technology
> > > to convert those into compilable runtimes.
> > >
> > >
> > Yes, any incompatible change in IDL would be hugely awful.
> >
> > If we plan to experiment with switching the compiler to a different
> > language, the acceptance test should be that it can take any thrift file
> > and
> > generate hashwise identical code for all of the currently supported
> > languages.
> >
> > -Todd
> >
> >
> >
> > > Cheers,
> > > -g
> > >
> > > On Thu, Aug 26, 2010 at 21:22, Roger Meier <[email protected]>
> > > wrote:
> > > > talking about interface descriptions and languages to build to
> > compiler.
> > > >
> > > > What about ASN.1 (http://www.asn1.org/) as a discription language or
> > pre
> > > > format?
> > > >
> > > > Does somebody have a ASN.1 to Thrift compiler ?
> > > >
> > > > Of course there might be some gaps, but what about that?
> > > >
> > > >
> > > > Am 26.08.2010 22:54, schrieb Bjorn Borud:
> > > >>
> > > >> on the project I currently work on we have a (ANTLR-based) parser for
> > > >> the Thrift IDL language in order to generate code for a proprietary
> > > >> serialization library.
> > > >>
> > > >> it struck me that perhaps we could use this parser the implement the
> > > >> Thrift compiler in Java instead.  this would mean that the thrift
> > > >> compiler itself could be built as a platform independent artifact --
> > > >> which should make it a lot more elegant to write Maven plugins for
> > > >> Thrift.  it would also eliminate the need (for us) to maintain Thrift
> > > >> compiler binaries for all platforms and versions of the compiler.
> > > >>
> > > >> currently the parser lacks some minor features, but this could easily
> > be
> > > >> rectified.  the real job is to add the code generation for various
> > > >> languages.
> > > >>
> > > >> if anyone is interested in this, I am going to talk to some people
> > > >> tomorrow to get formal approval for open sourcing it.
> > > >>
> > > >> any thoughts?
> > > >>
> > > >> -Bjørn
> > > >>
> > > >>
> > > >>
> > > >>
> > > >
> > > >
> > >
> >
> >
> >
> > --
> > Todd Lipcon
> > Software Engineer, Cloudera
> >

-- 
------------------------------------------------------------------------
Anthony Molinaro                           <[email protected]>

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