Perl 6 Design Minutes for 10 March 2010

The Perl 6 design team met by phone on 10 March 2010. Larry, Allison, Patrick, Jerry, Will, and chromatic attended.

Larry:

• scrapped @array[%100_000] modular subscript notation in favor of a more general mapping closure
• put back:s file test, removed:z,:T,:B,:M,:A,:C
• clarified that these are defined on IO, not on strings
• deprecated the {*} and #= reduction stub notations in grammars
• attributive parameters now default to is copy binding; but easy for an attribute to override this with is ref
• tried to move operator definitions to CORE; found one approach that doesn't work and abandoned it
• STD now allows _ in numeric variable names like $10_000.
• factored out curlycheck so we can use it on any trailing curly
• postcircumfix:<{ }> now uses curlycheck for consistency
• STD now speculates missing semicolon when two terms in a row are separated by at least one newline
• removed mention of *.notdef in favor of:!defined
• still need to remove it from the spec though
• ambiguously rebound outer lexicals now detected even if ambiguity propagates from an inner scope
• reports more pertinent information in that case so the difficulty can be understood by the user
• various random debugger refactorings
• properly scope dynamic package names for block-oriented packages to include name declaration
• package_def of; packages now eats statementlist itself to stay inside proper scope
• much work on package qualified names
• correctly parse <$x> part of FOO::<$x> as part of variable name
• correctly follow symbolically indirected OUTER:: links
• find_top_pkg no longer cares if name ends in::
• STD now figures out whether initial components lead to package or lexical scope
• no longer scans outer scopes on qualified names
• now handles FOO::<$x> form in check_variable
• no longer checks for @/% mistakes on qualified names

Patrick:

• haven't had much hacking time lately due to personal demands
• should be able to hack again later today and the rest of the week

Allison:

• worked on the PCC refactor
• that went well; the hackathon was good
• it didn't pull in a lot of people, but me dedicating the weekend to it was helpful
• also pulled in a few other people willing to try things out
• we made good progress
• our initial task is over
• we're in the nebulous stage of debugging
• need to review a change in optional return values
• also worked on Ubuntu and Debian packaging
• Parrot 2.0 is in both
• it'll be in April's Lucid Lynx Ubuntu

Jerry:

• Google Summer of Code is starting
• TPF and PaFo are teaming up this year
• we're working on the organization application
• Jonathan Leto is leading things and I'm backing him up
• we're looking for mentors and ideas; see the TPF GSoC wiki page

Will:

• started going through Rakudo's RT queue
• did more Parrot building and cleanup work
• no longer invoking Perl to invoke the C compiler for each build file
• shaved some time off the build
• eliminated one recursive make, leaving two
• then I can remove more things from config

c:

• worked on a bunch of branches
• fixed a couple of bugs
• hope to get more bug fixing time in

Syndicated 2010-03-23 01:37:49 from pudge