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I8 is a synonym for 'UTF' in this context, and is more meaningful to me.
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If the value of the new constant is the same as the old, this warning
only occurs under ‘use warnings 'redefine'’ and $^W=1, not under $^W=0
outside of any warnings scope.
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In perldiag, this is listed as (S), which means that outside of any
use/no warnings scope it always warns, regardless of $^W.
But this warning was ignoring use/no warnings, too.
There were actually tests for this oddity, but I think those were
added by mistake, or this was just not thought through. I cannot see
how this is not a bug.
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This speeds things up 2.8 times in my naïve benchmarks.
This applies to code like:
use constant DEBUG => 1;
DESTROY { return unless DEBUG; ... }
which gets optimised down to:
DESTROY { return; ... }
Adding such a destructor will now have almost no impact on speed in
production.
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newCONSTSUB uses the compile-time warning hints, instead of the run-
time hints. This means that
use warnings;
BEGIN {
no warnings;
some_XS_function_that_calls_new_CONSTSUB();
}
may trigger a redefinition warning, whereas it should be analogous to
use warnings;
BEGIN {
no warnings;
*foo = \&bar;
}
which does not warn.
newCONSTSUB localises PL_curcop and sets it to &PL_compiling. When it
does that, it needs to copy the hints over.
Running tests inside eval is not reliable without a test count, so I
added one.
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This also restores the subroutine redefinition warning for newly-cre-
ated XSUBs outside the autouse package. See below.
This commit added the exemption to fix a known bug, that loading a
module and importing from it would cause a redefinition warning if
there were an autouse stub:
perl-5.004_03-1092-g2f34f9d
commit 2f34f9d4825ac9262ece854fc4c50479f4838ff8
Author: Ilya Zakharevich <ilya@math.berkeley.edu>
Date: Mon Mar 2 16:36:02 1998 -0500
Make autouse -w-safe
p4raw-id: //depot/perl@781
The subroutine redefinition warning occurs in three places.
This commit removed the autouse exemption from two
of them. I can’t see how it wasn’t a mistake, as <5104D4DBC598D211B5FE0000F8FE7EB202D49EE9@mbtlipnt02.btlabs.bt.co.uk>
(the apparent source of the patch, makes no mention of it:
perl-5.005_02-2920-ge476b1b
commit e476b1b5c29f354cf8dad61a9fc6d855bdfb5b7d
Author: Gurusamy Sarathy <gsar@cpan.org>
Date: Sun Feb 20 22:58:09 2000 +0000
lexical warnings update, ability to inspect bitmask in calling
scope, among other things (from Paul Marquess)
p4raw-id: //depot/perl@5170
This commit refactored things to remove some compiler warnings, but
in doing so reversed the logic of the condition, causing redefini-
tion warnings for newly-created XSUBs to apply only to subs from the
autouse package:
perl-5.8.0-5131-g66a1b24
commit 66a1b24beb76ea873ad4caa57ee3ab9df945afbf
Author: Andy Lester <andy@petdance.com>
Date: Mon Jun 6 05:11:07 2005 -0500
Random cleanups #47
Message-ID: <20050606151107.GC7022@petdance.com>
p4raw-id: //depot/perl@24735
I’ve basically reinstated the changes in 2f34f9d4, but with tests
this time.
It may not make sense for autouse to be exempt for newATTRSUB and
newXS, but keeping the logic surrounding the warning as close as
possible to being the same could allow future refactorings to
merge them.
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sub {} and sub{()} are equivalent. In list context they both return
the empty list. In scalar context they both return undef. But sort
doesn’t seem to think so. It croaks on sub{}. This commit fixes that
and makes it consistent.
I left XSUBs alone, since I’m not sure how they are supposed
to behave.
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Due to the '.' in 'test.lib's name, t/filenames.t fails (because '.' is the path
separator on VMS). To fix this, I create and delete the directory and its
contents during each test that needs to access the directory. Said tests will be
skipped if the directory cannot be created (e.g., on VMS).
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(updated to ignore perlvar/perlpodspec issues)
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This fixes the podcheck error complaining about their filenames
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$cwd already includes $volume
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I added a whole bunch of "File::Spec"s and "File::Spec::Unix"s and I
updated the test cases and test harness to be platform independent.
I also updated some documentation in Pod::Html and removed some unneeded code.
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Take into account Windows paths in Podroot and Podpath
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Correct the lack of possible offset when removing Podroot from each
Podpath to account for a trailing slash in Podroot.
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It converts more and correctly converts anchored =head directives and
index elements
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The bug prevented '<body id="_podtop_">' from appearing when
--backlink was enabled
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Note that it uses <b> instead of <strong>, <i> instead of <em>,
and converts E<> formatting codes before they are written to .html
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The script does basic conversion of old Pod::HTMl test cases to new
Pod::Html test cases.
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The bug inhibited finding replacement paths for POD documents not found
in %Pages.
Update the accompanying warning message, too.
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