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CVS commit: pkgsrc/devel/p5-circular-require

Module Name:    pkgsrc
Committed By:   sno
Date:           Wed Jul  3 08:41:30 UTC 2013

Added Files:
        pkgsrc/devel/p5-circular-require: DESCR Makefile distinfo

Log Message:
Adding package for CPAN distribution circular-require version 0.10 into

Perl by default just ignores cycles in require statements - if does
use Bar and does use Foo, doing use Foo elsewhere will start loading, then hit the use statement, start loading, hit the use
statement, notice that has already started loading and ignore it,
and continue loading But hasn't finished loading yet, so if uses anything from (which it likely does, if it's loading it),
those won't be accessible while the body of is being executed. This
can lead to some very confusing errors, especially if introspection is
happening at load time (make_immutable in Moose classes, for example). This
module generates a warning whenever a module is skipped due to being loaded,
if that module has not finished executing.

This module works as a pragma, and typically pragmas have lexical scope.
Lexical scope doesn't make a whole lot of sense for this case though,
because the effect it's tracking isn't lexical (what does it mean to disable
the pragma inside of a cycle vs. outside of a cycle? does disabling it
within a cycle cause it to always be disabled for that cycle, or only if
it's disabled at the point where the warning would otherwise be generated?
etc.), but dynamic scope (the scope that, for instance, local uses) does,
and that's how this module works. Saying no circular::require enables the
module for the current dynamic scope, and use circular::require disables
it for the current dynamic scope. Hopefully, this will just do what you mean.

To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 pkgsrc/devel/p5-circular-require/DESCR \
    pkgsrc/devel/p5-circular-require/Makefile \

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

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