develooper Front page | perl.perl6.language | Postings from July 2005

Perl 6 Summary for 2005-07-19 through 2005-07-26

From:
Matt Fowles
Date:
July 26, 2005 18:22
Subject:
Perl 6 Summary for 2005-07-19 through 2005-07-26
Message ID:
f2601a7f05072618215993f258@mail.gmail.com
Perl 6 Summary for 2005-07-19 through 2005-07-26
    All~

    Welcome to another Perl 6 Summary brought to you by microwaved chinese
    food and air conditioning. I love the modern era. Without further ado, I
    bring you

  Perl 6 Compilers
    Grégoire Péan announed the release of PxPerl 5.8.7-3, allowing people
    who want to play with Pugs and Parrot on windows easy access.

    <http://xrl.us/gv6k>

   Test Report for Windows
    Ronald Hill reported some failing tests for Pugs on windows.
    Fortunately, given Pugs's developement, there is a reasonable chance of
    these problems being fixed. Unfortunately, given Pugs developement, no
    such information made it to the list.

    <http://xrl.us/gv6m>

   Parsing Perl6 Rules
    Nathan Gray wondered how Jeff Pinyan's parsing perl6 rules project was
    going. Jeff said that it did not get very far, but he posted what he did
    have to <http://feather.perl6.nl/~japhy/>.

    <http://xrl.us/gv6n>

   Pugs Problems
    Vadim Konovalov was playing with slurp and found two problems. Adriano
    Ferreira showed him how to work around slurp not accepting a ":raw"
    option. Nobody commented on the peculariar $*ARGS[0] value when the
    argument is "-foobarfluffy".

    <http://xrl.us/gv6o>

   Official Perl6 Rules Grammar
    Patrick announced an "official Perl 6 grammar" whichi he would be
    mainting closely with PGE in Parrot. It is incomplete at this point, but
    patches are most welcome.

    <http://xrl.us/gv6p>

   PIL Nodes's Descriptions
    Allison Randal posted a request for a clue batting, listing various
    types of nodes in PIL and explaining her guess at their descriptions.
    Stuart Cook and Patrick both provided a little help, although not
    everything on her list was addressed.

    <http://xrl.us/gv6q>

   Perl 6 FAQ Patch
    Autrijus provided a patch for the Perl 6 FAQ removing an outdated
    question. Robert Spier applied the patch (modulo some confusion about
    staged vs live copies).

    <http://xrl.us/gv6r>

  Parrot
   Opcode Optimizability
    Curtis Rawls noted that it is often simpler from an optimizer writers
    standpoint to do constant folding and optimization on a smaller set of
    opcodes (just one variant add instead of five (seven if you count inc
    and dec)). Leo explained that removing these opcodes isn't an option,
    but that a suggestion for compiler writers to only emit the more verbose
    codes could be added to the faq.

    <http://xrl.us/gv6s>

   Refcounting Hash
    Nicholas Clark wants to use a hash to hold reference counts for Ponie
    (something like dod_register_pmc in pmc.c), but he doesn't want to
    duplicate code. Leo suggested that he move some of the code into a pmc
    and then switch the real registry to use that PMC.

    <http://xrl.us/gv6t>

   New PGE Test
    Mitchell N Charity submited a test for a "large" pugs grammar, which
    currently fails. Patrick noted that the test like came from
    rx_grammar.pl in the Pugs distribution. This probably led to his above
    addition of an "Official Perl6 Rules Grammar".

    <http://xrl.us/gv6u>

   Jit Emit Help
    Adam Preble decided that he would play with an x86_64 code generator.
    Unfortunately, he was hitting some stumbling blocks. Leo offered to help
    him and provided pointers from #parrot.

    <http://xrl.us/gv6v>

   Call Opcode Cleanup
    Leo wants to cleanup some of the various invoke opcodes. He posted a
    request for comment, but Warnock applies. It seems that Leo's request
    for comments like this get Warnocked a lot...

    <http://xrl.us/gv6w>

    <http://xrl.us/gv6x>

   "spawnw" Return Value
    Jerry Gay opened a TODO ticket for switching spawnw to return something
    object like to wrap platform-specific oddities. Prompted by Jonathan
    Worthington submitting a patch to make the spawnw tests pass on windows
    (which was applied).

    <http://xrl.us/gv6y> -- Ticket

    <http://xrl.us/gv6z> -- TODO

   Bugs in ops2vim.pl
    Amir Karger noticed a bug in ops2vim.pl and suggested a fix. Jerry Gay
    fixed it.

    <http://xrl.us/gv62>

   Leo's Ctx Branch Tests
    Jerry Gay and Leo worked together to get his branch passing a few more
    tests on windows. Nick Glencross wondered if the python dynclasses tests
    were being run too. Jonathan Worthington explained that they were being
    skipped for the moment.

    <http://xrl.us/gv63>

   Raised by the Aliens
    Matt Diephouse was surprised to discover that you cannot use addparent
    with a PMC for either argument. He suggested that this be made to work
    or officially documented.

    <http://xrl.us/gv64>

   Patches Accumulating
    Leo requested that people with commit bits pick up some of the patches
    that were building up as he was running a little low on tuits.

    <http://xrl.us/gv65>

   Dump CFG
    Curtis Rawls moved the dump_cfg call from reg_alloc.c to cfg.c. Leo
    applied the patch.

    <http://xrl.us/gv66>

   string_to_cstring leaks
    Jonathan Worthington plugged a few leaks caused by string_to_cstring.
    Leo applied the patch.

    <http://xrl.us/gv67>

   Deleting Globals/Lexicals
    Matt Diephouse noted that there was no way to delete globals or
    lexicals. Leo posted one (untested) way to do it.

    <http://xrl.us/gv68>

   Generating Win32 Executables
    Jonathan Worthington laid some ground work for generating executables on
    windows. Leo applied the patch.

    <http://xrl.us/gv69>

   Library Loading on Win32
    Jonathan Worthington beefed up the library searching logic in Parrot to
    be a little more Windowsy. Leo applied the patch.

    <http://xrl.us/gv7a>

   PBC Merge Utility
    Leo posted a request for a utility that could merge several pbc files
    into one.

    <http://xrl.us/gv7b>

   Calling Super Methods
    Matt Diephouse noticed that there was no way to call the method from a
    super class. Leo pointed out a way to do it by accessing the slots of
    the parent directly.

    <http://xrl.us/gv7c>

   Cmd Buffer Reallocation
    Greg Bacon fixed a bug in the reallocation of the cmd buffer on Win32.
    Jonathan Worthington applied the patch.

    <http://xrl.us/gv7d>

   Data::Dump(PGE)
    Will Coleda added a TODO for making PGE's match objects compatible with
    Data::Dumper.

    <http://xrl.us/gv7e>

   does Hash
    Will Coleda wants Data::Dumper to check if an object does Hash or Array
    and dump it thusly if no default dump is implemented.

    <http://xrl.us/gv7f>

   rx.ops's future
    Will Coleda wondered what the future of the rx ops. Brent 'Dax'
    Royal-Gordon, who wrote them, recons they are not long for this work. He
    reckonned that the intstacks and the bitmap handling code might be worth
    saving.

    <http://xrl.us/gv7g>

   Debugger - List breakpoints
    Will Coleda noticed that the debugger was not quite compatible with
    perl's. Leo replied that the debuggers whole command loop was a mess
    that required a turn of the crank.

    <http://xrl.us/gv7h>

   \u escape issues
    Will Coleda opened a ticket for some unicode escape issues. Leo asked
    for a test case.

    <http://xrl.us/gv7i>

   string -> int conversions
    Matt Diephouse noticed that there was no opcode Octal and Hex
    conversions. Leo suggested adding one of the form " set Ix, Sy, Ibase #
    Ibase = 2..36 ".

    <http://xrl.us/gv7j>

   Make " make languages " Failures Nonfatal
    Bernhard Schmalhofer suggested that " make languages " should not give
    up after the first failure, but should instead build the remaining
    languages.

    <http://xrl.us/gv7k>

   Dynclasses on Windows
    Nick Glencross and Jonathan Worthington discussed how to make dynclasses
    build on windows.

    <http://xrl.us/gv7m>

   Resizable*Array Allocation
    Matt Fowles submitted a patch making all the various Resizeable*Array
    pmcs share their allocation strategy. Bernhard Schmalhofer applied the
    patch.

    <http://xrl.us/gv7n>

   MMD Roundup - Take 2
    Nicholas Clark attempted to dewarnock a suggested change by Leo.
    Unfortunately, his thoughts on the matter were "this is really a call
    for the designer to make, isn't it?". Leo suggested starting a WARNOCKED
    file for these things. Will countered that adding it to the DESIGN
    section in docs/ROADMAP, so Chip needs only look in one place.

    <http://xrl.us/gv7o>

   Parrot Failures on OS X
    Nicholas Clark forwards some failures on OS X to the Parrot list (from
    the Ponie one).

    <http://xrl.us/gv7p>

   Parrot Needs stderr
    Nicholas Clark noticed that running parrot with a closed stderr, makes
    parrot unhappy.

    <http://xrl.us/gv7q>

   GMC
    Alexandre Buisse and many others have been talking about his Generation
    Mark and Compact Garbage Collector. Plans are rapidly taking shape.

    <http://xrl.us/gv7r>

  Perl 6 Language
   User Defined Context Behavior
    Ingo Blechschmidt wanted to know how to make is own custom class that
    would act specially in list context. Thomas Sandlaß suggested
    overloading &infix:<=>. Sadly, his answer doesn't seem to have made it
    to google groups.

    <http://xrl.us/gv7s>

   Hash Creation with Duplicate Keys
    Ingo Blechschmidt noticed that in Perl 5 hash definitions the right most
    duplicate one, whereas the left most wins in Perl 6. He was wondering if
    this was a bug or not. Luke explained that it was that way for named
    variable bindings. Larry figured it should be that way ONLY for named
    variable binding. If Pugs has not done it yet, some brave soul could
    probably add tests and find it implemented before they had finished
    committing.

    <http://xrl.us/gv7t>

   Tail Calls, Methods, and Currying
    Brent 'Dax' Royal-Gordon wondered about Tail calls, noting that the
    current method " $obj.can('meth').goto($obj, *@args); " was kinda ugly.
    Larry mused that " return g() " should go ahead and tail call. If the
    code does not want a tailcall there then it should avoid it manually.

    <http://xrl.us/gv7u>

   Pairs and Binding Play Poorly Together
    Autrijus noted that pairs and bindings (such as in a for loop) play
    badly together. Larry supposed that the Bare code object could have
    parameters of type Pair|Item (note no Juntion) by default to solve this
    problem. Damian supported the exclusion of Junction.

    <http://xrl.us/gv7v>

   Method Introspection and meta....meta.classes
    chromatic wondered about subroutine and method introspection. Sam Vilain
    thought he might want to look at Stevan Cook's Perl6-MetaModel. He also
    talked about closing the loop on meta-meta-meta headaches. Apparently
    small talk has done this somewhere...

    <http://xrl.us/gv7w>

   Big Object Rethink
    Larry posted a fairly major rethink of member variables and methods.
    Honestly I did not quite follow what he described and there is a lot to
    summarize... Hey! Look over there! ::PUNT:: Nothing to see here move
    along.

    <http://xrl.us/gv7x>

   Garbage Collection API
    David Formosa (after being lightly chastized by an unknown summarizer)
    started a new thread expanding on his desire for a GC API. I thought
    there were replies to this, but they don't seem to have made it to
    google.

    <http://xrl.us/gv7y>

   Exposing the GC
    Piers Cawley thought that it might be useful to expose the GC to get an
    array of all objects of a particular class. Brent 'Dax' Royal-Gordon
    thought that the ability to get such an array would be useful, but that
    it should merely be an implementation detail of whether an array of weak
    refs or the GC or Harry Potter was invoked.

    <http://xrl.us/gv7z>

  The usual footer
    To post to any of these mailing lists please subscribe by sending email
    to <perl6-internals-subscribe@perl.org>,
    <perl6-language-subscribe@perl.org>, or
    <perl6-compiler-subscribe@perl.org>. If you find these summaries useful
    or enjoyable, please consider contributing to the Perl Foundation to
    help support the development of Perl. You might also like to send
    feedback to ubermatt@gmail.com

    <http://donate.perl-foundation.org/> -- The Perl Foundation
    <http://dev.perl.org/perl6/> -- Perl 6 Development site
    <http://planet.parrotcode.org/> -- Parrot Blog aggregator



nntp.perl.org: Perl Programming lists via nntp and http.
Comments to Ask Bjørn Hansen at ask@perl.org | Group listing | About