constant::defer creates a subroutine which on the first call runs given code to
calculate its value, and on any subsequent calls just returns that value, like a
constant. The value code is discarded once run, allowing it to be garbage
collected.
Deferring a calculation is good if it might take a lot of work or produce a big
result but is only needed sometimes or only well into a program run. If it's
never needed then the value code never runs.
A deferred constant is generally not inlined or folded (see "Constant Folding"
in perlop) since it's not a single scalar value. In the current implementation a
deferred constant becomes a plain constant after the first use, so may inline
etc in code compiled after that (see "IMPLEMENTATION" below).
Remove WWW entries moved into port Makefiles
Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.
This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.
Approved by: portmgr (tcberner)
Add WWW entries to port Makefiles
It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.
Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.
There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.
(Only the first 15 lines of the commit message are shown above )
devel: remove 'Created by' lines
A big Thank You to the original contributors of these ports:
* "Waitman Gobble" <uzimac@da3m0n8t3r.com>
* <jkoshy@FreeBSD.org>
* Aaron Dalton <aaron@FreeBSD.org>
* Aaron Dalton <aaron@daltons.ca>
* Aaron H. K. Diep <ahkdiep@gmail.com>
* Aaron Hurt <ahurt@anbcs.com>
* Abel Chow <abel_chow@yahoo.com>
* Adam McLaurin
* Adam Saponara <as@php.net>
* Adam Weinberger <adamw@FreeBSD.org>
* Ade Lovett <ade@FreeBSD.org>
(Only the first 15 lines of the commit message are shown above )
- Add p5-constant-defer 6
constant::defer creates a subroutine which on the first call runs given code to
calculate its value, and on any subsequent calls just returns that value, like a
constant. The value code is discarded once run, allowing it to be garbage
collected.
Deferring a calculation is good if it might take a lot of work or produce a big
result but is only needed sometimes or only well into a program run. If it's
never needed then the value code never runs.
A deferred constant is generally not inlined or folded (see "Constant Folding"
in perlop) since it's not a single scalar value. In the current implementation a
deferred constant becomes a plain constant after the first use, so may inline
etc in code compiled after that (see "IMPLEMENTATION" below).
WWW: http://search.cpan.org/dist/constant-defer/
