Perl 6 Design Minutes for 24 March 2010

The Perl 6 design team met by phone on 17 March 2010. Larry, Allison, Patrick, Jerry, and chromatic attended.

Larry:

• clarified that nearly all normal operators autothread, including === and eqv
• specced the \| parcel parameter syntax
• documented that R metaoperator does not change associativity
• clarified that trusts traits do not extend to child classes, and moritz++ specced it
• in STD, we now suppress spurious errors from badinfix lookahead (and react more accurately to bogus terms)
• now put the error location pointer before a bad infix, not after
• we no longer assume missing block punctuation is always semi or comma, but keep them as a suggestion
• missing punctuation message now points before any whitespace
• awesomified error message about no unspace in regexes to explain how to quote space or #
• pass single coeff to radcalc to make:16<.BABEFACE> easier to allow
• gives better message on missing ** part of radix literals
• worked around fact that:: doesn't correctly suppress relexing of multi tokens
• scrapped the workaround and did a complete refactor of commit point transactions; no longer uses exceptions to commit
• instead, it walks the current commit chain to the proper commit target to disable choosers that should not choose any more options
• commit chain aliasing and forking to make a cactus stack is now managed by cursors, mostly transparently
• weighed in on the subject of stability domains (or lack thereof) in Rakudo *

Patrick:

• still working on personal issues, but hope to have some resolution by Saturday
• haven't had much time to work on Rakudo, but show up on #perl6 to give advice sometimes
• read Larry's email to the list; it was very helpful

Allison:

• met some interesting people at SxSW doing open source education technology
• reviewing the roadmap
• the GC sounds like the most important thing to work on next
• trying to catch up from having spotty network access lately

Jerry:

• the other Rakudo developers have started weekly planning meetings
• Jonathan has taken the lead
• plenty of contributors are in the meeting and offered to take on new tasks
• Rakudo Star may have a smaller scope, but it'll still come out in Q2
• it's nice to see that the Rakudo community continues even as Patrick has an extended absence
• still some Parrot issues affecting Rakudo
• PaFo hopes to have its 501(c)3 application done by summer

c:

• bugfixes
• minor optimizations
• helped merge the PCC refactor branch
• working on Rakudo memory issues (long analysis follows, partly Parrot GC and partly NQP behavior)

Syndicated 2010-03-31 21:20:11 from pudge