The roadmap to 5.10 envisages feature based releases, as various items in this
TODO are completed.
-=head2 Needed for a 5.9.3 release
-
-=over
-
-=item *
-Implement L</lexical pragmas>
-
-=back
-
=head2 Needed for a 5.9.4 release
=over
=item *
-Review assertions. Review syntax to combine assertions. Can assertions take
-advantage of the lexical pragams work? L</What hooks would assertions need?>
+
+Review assertions. Review syntax to combine assertions. Assertions could take
+advantage of the lexical pragmas work. L</What hooks would assertions need?>
=back
errors. See also L</make HTML install work>, as the layout of installation tree
is needed to improve the cross-linking.
+The addition of C<Pod::Simple> and its related modules may make this task
+easier to complete.
+
=head2 Parallel testing
The core regression test suite is getting ever more comprehensive, which has
when making a tarball, yet leave the default source saying "I'm not the
official release".
-=head2 Tidy up global variables
-
-There's a note in F<intrpvar.h>
-
- /* These two variables are needed to preserve 5.8.x bincompat because
- we can't change function prototypes of two exported functions.
- Probably should be taken out of blead soon, and relevant prototypes
- changed. */
-
-So doing this, and removing any of the unused variables still present would
-be good.
-
=head2 Ordering of "global" variables.
F<thrdvar.h> and F<intrpvarh> define the "global" variables that need to be
to review the ordering of the variables, to see how much alignment padding can
be removed.
-=head2 bincompat functions
-
-There are lots of functions which are retained for binary compatibility.
-Clean these up. Move them to mathom.c, and don't compile for blead?
+It's also worth checking that all variables are actually used. Perl 5.8.0
+shipped with C<PL_nrs> still defined in F<thrdvar.h>, despite it being unused
+since a change over a year earlier. Had this been spotted before release, it
+could have been removed, but now it has to remain in the 5.8.x releases to
+keep the structure the same size, to retain binary compatibility.
=head2 am I hot or not?
=head2 lexical pragmas
-Reimplement the mechanism of lexical pragmas to be more extensible. Fix
-current pragmas that don't work well (or at all) with lexical scopes or in
-run-time eval(STRING) (C<sort>, C<re>, C<encoding> for example). MJD has a
-preliminary patch that implements this.
+Document the new support for lexical pragmas in 5.9.3 and how %^H works.
+Maybe C<re>, C<encoding>, maybe other pragmas could be made lexical.
=head2 Attach/detach debugger from running program
debugger on a running Perl program, although I'm not sure how it would be
done." ssh and screen do this with named pipes in /tmp. Maybe we can too.
-=head2 inlining autoloaded constants
-
-Currently the optimiser can inline constants when expressed as subroutines
-with prototype ($) that return a constant. Likewise, many packages wrapping
-C libraries export lots of constants as subroutines which are AUTOLOADed on
-demand. However, these have no prototypes, so can't be seen as constants by
-the optimiser. Some way of cheaply (low syntax, low memory overhead) to the
-perl compiler that a name is a constant would be great, so that it knows to
-call the AUTOLOAD routine at compile time, and then inline the constant.
-
=head2 Constant folding
The peephole optimiser should trap errors during constant folding, and give
The old perltodo notes "Look at the "reification" code in C<av.c>".
-=head2 switch ops
-
-The old perltodo notes "Although we have C<Switch.pm> in core, Larry points to
-the dormant C<nswitch> and C<cswitch> ops in F<pp.c>; using these opcodes would
-be much faster."
-
=head2 What hooks would assertions need?
Assertions are in the core, and work. However, assertions needed to be added
-
-
=head1 Big projects
Tasks that will get your name mentioned in the description of the "Highlights
This task is incremental - even a little bit of work on it will help, and
will be greatly appreciated.
+One bit would be to write the missing code in sv.c:Perl_dirp_dup.
+
=head2 iCOW
Sarathy and Arthur have a proposal for an improved Copy On Write which
https://perl5.git.perl.org / perl5.git / blobdiff