Perl 5 Porters Mailing List Summary: June 30th - July 5th
Hey everyone,
Following is the p5p (Perl 5 Porters) mailing list summary for the past week. Enjoy!
June 30th - July 5th
News and updates
Having asked and received approving comments, Karl Williamson pushed a commit that uses Script_Extensions property (scx) as the new underlying for single-value synonyms in Perl (instead of Script property, sc).
Paul Evans is working on an implementation of async/await,
and wrote three emails on the topic:
overview,
plan of attack,
and
call to action.
Seems very exciting so far!
Issues
New issues
- Perl #128508:
-xline error. - Perl #128524: Data::Dumper gets string lengths wrong when the utf8 flag is set.
- Perl #128525: CPAN Data::Dumper is behind blead.
- Perl #128530: Cloning STDOUT loses encoding.
- Perl #128532:
Crash with
Symbol
::delete_packageand subref.
Resolved issues
- Perl #3330: Magic increment avoids warning unexpectedly.
- Perl #3677: Can't install perl 5.6.0 successfully on AIX.
- Perl #4513:
h2phproducing broken ph files on AIX 4.3.2. - Perl #6870:
Odd parsing of
do ... for .... - Perl #9321:
Segfault running
t/io/fs.tunder Devel::DProf. - Perl #9523: More problems with embedded API.
- Perl #10006:
STDIN inaccessible after
undefing it. - Perl #128508:
-xline error. - Perl #128532:
Crash with
Symbol
::delete_packageand subref.
Proposed patches
Salvatore Bonaccorso provided a patch in Perl #128517 to make ExtUtils::ParseXS output reproducible.
Dan Collins provides a patch for
Perl #128538
(Fix copy/paste error in Configure).
Dan also provided a patch for a test in Perl #6997 ("Useless use of concatenation" warning not triggered by multiple concatenations).
Chad Granum provided a patch in RT#128536 to update Test-Simple in blead to 1.302037.
Discussion
Matthew Horsfall
provided
submitted a patch for supporting indented heredocs. The thread is
a very fun read. It also split to the
this
thread. There is now a conversation on how early can we introduce
this feature while deprecating some old syntax, <<- at the same
time.
Shlomi Fish asks about an error he receives in a piece of code.
Alberto Simões
asks
about typemaps and sending substr as a parameter to a function
in XS. Solution available
here
and the lovely
response.
Ed Avis
asks
about calling a subroutine within itself without using
parenthesis. sub foo { foo 3; } currently doesn't work. Should
it?
Gots to do the bloggingz
Is async/await syntax a coroutine support in Perl core?
It's coroutine support effectively, yes. Coroutines organised by the use of Futures; in much the way that a lot of other languages, both static and dynamic, seem to be doing lately.
But it's not going in core, no. At least, not initially.
If it goes into core, then even if right now today I had the code 100% ready and working, it would make it into 5.25.something, and the first real release you could use it with would be 5.26.
No, I'm building this initially as an XS module to live on CPAN. With any luck I'll be able to implement it entirely with the custom keyword features added in 5.16, meaning you could install and then use it on any perl as far back as 5.16. This therefore makes it much more useful; as it means it can work just fine on existing perl installs from today, last year,.. even four years ago.
Paul
I think it is good to implement coroutine in core because coroutine often depends on core internal implementation.
Where is the repository of your async/await module?