Perl 6 Summary for 2006-01-10 though 2006-01-24
All~
Welcome to another fortnight's summary. This summary marks a return to a
Tuesday schedule for summaries. Hopefully this will help me get
summaries to you on time. Oddly appropriate that I just started reading
Don Quixote...
Perl 6 Compiler
Either this list followed its typical pattern of doing most of its work
off list, or google's indexing of it broke. I am guess the former and
continuing on blindly.
Perl 6 Internals
Unescapable Single Quotes in Strings
Matt Diephouse discovered that he could not escape single quotes within
strings. This saddened him so much he open an RT ticket.
<http://xrl.us/jpwo>
" genfile() " Interpolation Syntax
Joshua Hoblitt changed the interpolation syntax for "
Parrot::Configure::Step::genfile() " from " ${foo} " to " @foo@ ".
<http://xrl.us/jpwp>
getopt_obt.t Failures
Joshua Hoblitt posted some failures in " t/library/getopt_obj.t " on
amd64/linux.
<http://xrl.us/jpwq>
Improved Smoke Layout
Joshua Hoblitt opened a TODO for the smoke server's layout. Currently it
is a bit busy and confusing.
<http://xrl.us/jpwr>
Deprecated PMCs
Leo deprecated FloatvalArray and StringArray PMC in favor of the
(Fixed|Resizable)*Array PMCs, which are 20% more awesome.*
<http://xrl.us/jpws>
*awesomeness directly related to their original author
pdb.exe build broken
Jerry Gay noted that pdb.exe was failing to link on Windows.
<http://xrl.us/jpwt>
Interpolation Synatx Updates
Greg Bacon noticed a few " ${foo} " interpolations left over from the
aforementioned update. Nick Glencross improved upon Greg's core idea.
Joshua Hoblitt verified the fixes.
<http://xrl.us/jpwu>
Attack of the Clones
Klaas-Jan Stol was having trouble making his LuaNil PMC clone method.
Leo explained that it was his fault, and he solved it.
<http://xrl.us/jpwv>
LuaNil Morphing
Klaas-Jan Stol proffered a patch which changed LuaNil from a singleton
and made it morph to other Lua types when asked. Warnock applies.
<http://xrl.us/jpww>
LuaTable Loving
Klaas-Jan Stol also provided a patch making LuaTable more correct.
Warnock applies.
<http://xrl.us/jpwx>
Lua Fixes
Jonathan Worthington updated Lua PMCs to no longer use the deprecated
Parrot_PMC_typenum.
<http://xrl.us/jpwy>
Tcl on Darwin
Joshua Isom noticed that Tcl was no longer building on Darwin. Jonathan
Worthington updated Tcl PMCs to no longer use the deprecated
Parrot_PMC_typenum. Joshua noted that this fixed one problem but left
another one.
<http://xrl.us/jpwz>
No More .def Files
Jonathan Worthington completed the work that allows Parrot to build on
Win32 without a .def file. Thanks, Jonathan.
<http://xrl.us/jpw2>
Moving argv to ResizableStringArray
Joshua Isom (after Leo's earlier help) offered a patch moving argv from
an SArray to a ResizableStringArray. Warnock applies.
<http://xrl.us/jpw3> -- inital version
<http://xrl.us/jpw4> -- final version
Pod File Extensions
Joshua Isom noted that many documents were pod documents, but did not
have .pod extensions. Joshua Hoblitt fixed it.
<http://xrl.us/jpw5>
Switch Tcl to Getopt/Obj.pir
Bernhard Schmalhofer suggested that Tcl could be moved to Getopt/Obj.pir
from Getopt/Long.pir, which clears the path for remove of
Getopt/Long.pir. Will Coleda gave the go ahead for switching it.
<http://xrl.us/jpw6>
clear_eh restrictions
Bob Rogers posted an update to his patch which restricts " clear_eh " to
the current context only. Warnock applies.
<http://xrl.us/jpw7>
Clean Up After Yourself
Bob Rogers provided a patch which makes " examples/pir/io.pir " clean up
its temp file. Warnock applies.
<http://xrl.us/jpw8>
Build Failure on FreeBSD 5.4
Joshua Isom noted that the build was failing on FreeBSD 5.4. Apparently
the cgp core was a little hard on their gcc. Leo disabled the portion it
was breaking on.
<http://xrl.us/jpw9>
<http://xrl.us/jpxa>
" get_param " Questions
Klaas-Jan Stol had a few questions about get_param usage in PIR. Bob
Rogers and Leo provided answers.
<http://xrl.us/jpxb>
"find_global" Opcode Change
Leo updated "find_global" and "get_global" to return a Null PMC on
failure when exceptions are disabled.
<http://xrl.us/jpxc>
Build Step Parameter Passing
Joshua Hoblitt added support for passing parameters to build steps in
the build system.
<http://xrl.us/jpxd>
Automatic Closure Creation
Audrey found it cumbersome to need to explicitly create new closures for
package-scoped subroutines. Leo made it automatic.
<http://xrl.us/jpxe>
YAML::Emitter::Syck wanted
Will Coleda opened a todo for a "YAML::Emitter::Syck" that functions
similarly to "Data::Dumper".
<http://xrl.us/jpxf>
PMC Introspection
Will Coleda wants an API for introspecting PMCs from PASM.
<http://xrl.us/jpxg>
FrOSCon Call For Papers
Marcus Thiesen announced that the first Free and Open Source Conference
is looking for papers in both English and German.
<http://xrl.us/jpxh>
YAML::Parser::Syck
Bernhard Schmalhofer posted a brief look at what has already been done
with adding support of libsyck and left the door open to anyone who
wished to pick up the torch. Warnock applies.
<http://xrl.us/jpxi>
Parrot Link Issues
Klaas-Jan Stol had problems linking parrot. Larry managed to track the
problem down to an old libparrot in "/usr/local/lib" being picked up
prematurely.
<http://xrl.us/jpxj>
Parrot_Context Unused Field
Bob Rogers posted a patch which improved the name of an unused field in
Parrot_Context. Leo applied the patch. Matt Fowles wondered why leave
the unused pointer in at all. Leo explained that it was need for
mark_register_stack to work out correctly, although another pointer
could be moved over it to save those 4 bytes (or even 8 on 64 bit
platforms!).
<http://xrl.us/jpxk>
gunie.g Question
Chris Dolan was curious why print was an expression and not a statement
in the punie grammar. Andrew Rodland explained that print was an
expression because it return a value (success or failure).
<http://xrl.us/jpxm>
genrpt.pl is Obsolete
Bernhard Schmalhofer noticed that "tools/dev/genrpt.pl" does the same
thing as parrotbug and could thus be removed. Joshua Hoblitt agreed.
<http://xrl.us/jpxn>
Parrot::Config Contains Invalid Info
Jerry Gay noticed that his Parrot::Config was being created with
invalid data. Joshua Hoblitt offered to clean up one problem and
asked for takers on another.
<http://xrl.us/jpxo>
Rename "src/classes" to "src/pmc"
Bernhard Schmalhofer proposed and performed, after favorable reception
of his proposal, a migration from directories name "src/classes" to
"src/pmc".
<http://xrl.us/jpxp>
Out of Date Comments
Brad Bowman noticed some comments refering to "cache.*" in "pobj.h". He
provided a patch to remove them. Warnock applies.
<http://xrl.us/jpxq>
" compute_dominance_frontiers " Bug
Bob Rogers found a problem in " compute_dominance_frontiers ". Curtis
Rawls suggested simply disabling the function as it was merely a
precursor to SSA which was never finished.
<http://xrl.us/jpxr>
Closure::mark Segfault
Bob Rogers found a fixed a segfault in Closure::mark. Leo applied the
patch.
<http://xrl.us/jpxs>
Parrot CPAN Bundle?
Jerry Gay suggested making a CPAN Bundle (or possibly several) for
Parrot. Chip liked the idea of having one bundle, and thought that
having several sub-bundles would be more effort than it might be worth.
<http://xrl.us/jpxt>
Calling Conventions Details
Leo had a few questions about pdd03 (calling conventions). Chip provided
clarifications.
<http://xrl.us/jpxu>
PDD11 Bit Rot
Brad Bowman noticed a bit of rot in pdd11 and polished it up. Jerry Gay
applied the patch.
<http://xrl.us/jpxv>
Named Argument Passing
Leo proposed a way of passing named arguments in PIR. Response was
favorable, and he implemented it.
<http://xrl.us/jpxw> -- proposal
<http://xrl.us/jpxx> -- implementation
LuaTables of Floats
Klaas-Jan Stol wondered how to use N values as keys. Leo suggested using
Float PMCs and Matt Fowles warned of the danger of using floating point
values where equality checks might be needed.
<http://xrl.us/jpxy>
Argument Passing Bug
Bob Rogers found an issue with the :optional to :slurpy state transition
in process_args, so he fixed it. Leo applied the patch.
<http://xrl.us/jpxz>
Object Initialization Changes
Bob Rogers noticed some changes the semantics of object initialization.
He sent a patch with more tests, but Warnock applies.
<http://xrl.us/jpx2>
Assertion Failure in Life
Tim Bunce found an assertion failure in "ncurses_life.pir". Leo fixed
the problem.
<http://xrl.us/jpx3>
ncurses files
Tim Bunce found several different ncurses files in
"runtime/parrot/library/" and asked which were generated from the
others. Leo explained that ncurses.pasm was generated from
ncurses.declarations, but that ncurses.pir was hand made. He suggested
splitting them into to parts, one for libncurses and another for libform
NCI functions.
<http://xrl.us/jpx4>
Cygwin Build Failures
Greg Bacon was having build troubles on Cygwin. After much work, still
no resolution.
<http://xrl.us/jpx5>
HP-UX Alignment Issues
Nick Glencross found a failing assertion on HP-UX. Leo suggested
disabling function pointer alignment on this system since it dist not
appear to be working.
<http://xrl.us/jpx6>
.const improvements
François Perrad noticed that .const was not working with LuaPMCs. Leo
explained that a PMC had to implement new_from_string for .const to
work. Klass-Jan Stol added support for it to LuaNumber.
<http://xrl.us/jpx7>
method_util unused
Leo noticed method_util.c and .h. He also noticed that they were unused.
Shortly he is going to remove them.
<http://xrl.us/jpx8>
0.4.1 Build Erros on OSX
WangKe was having trouble building 0.4.1 on his shiny new OS X 10.4.3
Intel. I think he may have a completely untested combination of
endianess and OS for us... Sadly he was posting to google groups and not
the list. Perhaps some kind soul will help him.
<http://xrl.us/jpx9>
Namespace Notes
Leo had some suggestions after reading pdd21 (namespaces). Matt
Diephouse and Chip had some thoughts about it too.
<http://xrl.us/jpya>
Managed Pointers .Net Style
Jonathan Worthington was a little unsure of how to implement safe
managed pointers for .Net on Parrot. (Perhaps I will call it P#) Chip
provided useful suggestions for how he might proceed.
<http://xrl.us/jpyb>
Ranges and Iteration
Dave Whipp brought a thread over which discusses different aspects of
ranges including comparison, inclusion, and iteration.
<http://xrl.us/jpyc>
Pattern Matching For Loops
Dave Whipp wondered if there was someway to make the for loop in Perl6
do some kind of pattern matching. Brad Bowman wondered about anonymous
multis which sound interesting to me.
<http://xrl.us/jpyd> -- original post
<http://xrl.us/jpye> -- more on anonymous multis
Array Holes
Luke Palmer wondered how array holes would be dealt with in Perl6. Larry
posted his thoughts and musings.
<http://xrl.us/jpyf>
closures capturing sub arguments
Audrey had a question about the semantics of nested subs which capture
the argument of the outer sub. Larry felt that her approach was
reasonable and sound.
<http://xrl.us/jpyg>
Indeterminate Forms
Audrey wondered how a great number of operations like (0/0 and its ilk)
were defined. Larry felt that boxed types should be consistent and
unboxed types fast.
<http://xrl.us/jpyh>
Split on Empty String
Gaal Yahas noticed that pugs and Perl 5 disagreed on the result of
splitting an empty string. Larry sided with pugs in this case.
<http://xrl.us/jpyi>
Short Circuiting Chained Comparisons
Joe Gottman wondered if chained comparisons would short circuit. Luke
Palmer thought that they probably would.
<http://xrl.us/jpyj>
Class Methods vs Instance Methods
Rob Kinyon posted his concerns about the ambiguity that was being
introduced between class methods and instance methods. Matt Fowles also
voiced concern. While some thoughts were published, no official word has
emeged.
<http://xrl.us/jpyk>
Perl 6's Bless
Stevan Little, who has a habit of hurting my brain, posted some concerns
he has about "bless". Much discussion ensued. When it veered of his
intended topic, he tried again.
<http://xrl.us/jpym>
<http://xrl.us/jpyn>
Symbolic References with twigils
Joshua Choi wondered how to create a symbolic reference with a twigil.
Larry posted some thoughts.
<http://xrl.us/jpyo>
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