Import Upstream version 0.2800
This commit is contained in:
commit
9a9d89e7a7
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|
|||
## HOW TO CONTRIBUTE
|
||||
|
||||
Thank you for considering contributing to this distribution. This file
|
||||
contains instructions that will help you work with the source code.
|
||||
|
||||
The distribution is managed with Dist::Zilla. This means than many of the
|
||||
usual files you might expect are not in the repository, but are generated at
|
||||
release time, as is much of the documentation. Some generated files are
|
||||
kept in the repository as a convenience (e.g. Makefile.PL or cpanfile).
|
||||
|
||||
Generally, **you do not need Dist::Zilla to contribute patches**. You do need
|
||||
Dist::Zilla to create a tarball. See below for guidance.
|
||||
|
||||
### Getting dependencies
|
||||
|
||||
If you have App::cpanminus 1.6 or later installed, you can use `cpanm` to
|
||||
satisfy dependencies like this:
|
||||
|
||||
$ cpanm --installdeps .
|
||||
|
||||
Otherwise, look for either a `Makefile.PL` or `cpanfile` file for
|
||||
a list of dependencies to satisfy.
|
||||
|
||||
### Running tests
|
||||
|
||||
You can run tests directly using the `prove` tool:
|
||||
|
||||
$ prove -l
|
||||
$ prove -lv t/some_test_file.t
|
||||
|
||||
For most of my distributions, `prove` is entirely sufficient for you to test any
|
||||
patches you have. I use `prove` for 99% of my testing during development.
|
||||
|
||||
### Code style and tidying
|
||||
|
||||
Please try to match any existing coding style. If there is a `.perltidyrc`
|
||||
file, please install Perl::Tidy and use perltidy before submitting patches.
|
||||
|
||||
If there is a `tidyall.ini` file, you can also install Code::TidyAll and run
|
||||
`tidyall` on a file or `tidyall -a` to tidy all files.
|
||||
|
||||
### Patching documentation
|
||||
|
||||
Much of the documentation Pod is generated at release time. Some is
|
||||
generated boilerplate; other documentation is built from pseudo-POD
|
||||
directives in the source like C<=method> or C<=func>.
|
||||
|
||||
If you would like to submit a documentation edit, please limit yourself to
|
||||
the documentation you see.
|
||||
|
||||
If you see typos or documentation issues in the generated docs, please
|
||||
email or open a bug ticket instead of patching.
|
||||
|
||||
### Installing and using Dist::Zilla
|
||||
|
||||
Dist::Zilla is a very powerful authoring tool, optimized for maintaining a
|
||||
large number of distributions with a high degree of automation, but it has a
|
||||
large dependency chain, a bit of a learning curve and requires a number of
|
||||
author-specific plugins.
|
||||
|
||||
To install it from CPAN, I recommend one of the following approaches for
|
||||
the quickest installation:
|
||||
|
||||
# using CPAN.pm, but bypassing non-functional pod tests
|
||||
$ cpan TAP::Harness::Restricted
|
||||
$ PERL_MM_USE_DEFAULT=1 HARNESS_CLASS=TAP::Harness::Restricted cpan Dist::Zilla
|
||||
|
||||
# using cpanm, bypassing *all* tests
|
||||
$ cpanm -n Dist::Zilla
|
||||
|
||||
In either case, it's probably going to take about 10 minutes. Go for a walk,
|
||||
go get a cup of your favorite beverage, take a bathroom break, or whatever.
|
||||
When you get back, Dist::Zilla should be ready for you.
|
||||
|
||||
Then you need to install any plugins specific to this distribution:
|
||||
|
||||
$ cpan `dzil authordeps`
|
||||
$ dzil authordeps | cpanm
|
||||
|
||||
Once installed, here are some dzil commands you might try:
|
||||
|
||||
$ dzil build
|
||||
$ dzil test
|
||||
$ dzil xtest
|
||||
|
||||
You can learn more about Dist::Zilla at http://dzil.org/
|
||||
|
|
@ -0,0 +1,185 @@
|
|||
Changes for Sub::Uplevel
|
||||
|
||||
0.2800 2017-04-01 13:31:22-04:00 America/New_York
|
||||
|
||||
- No changes from 0.2700-TRIAL
|
||||
|
||||
0.2700 2017-03-30 10:09:46-04:00 America/New_York (TRIAL RELEASE)
|
||||
|
||||
[Fixed]
|
||||
|
||||
- Tests now work if '.' is not in @INC
|
||||
|
||||
0.2600 2016-08-05 10:46:37-04:00 America/New_York
|
||||
|
||||
- No changes from 0.2501-TRIAL
|
||||
|
||||
0.2501 2016-07-29 16:18:45-04:00 America/New_York (TRIAL RELEASE)
|
||||
|
||||
[~Internal~]
|
||||
|
||||
- Optimized calls to caller()
|
||||
|
||||
0.25 2015-01-26 20:32:52-05:00 America/New_York
|
||||
|
||||
[Fixed]
|
||||
|
||||
- fixed: 00-compile.t failures under Windows (bug #98230).
|
||||
The 00-compile.t file has been moved to a release test and is
|
||||
no longer shipped. [Michael Gray]
|
||||
|
||||
[Meta]
|
||||
|
||||
- moved bug tracker to Github
|
||||
|
||||
- updated repo files explaining how to contribute
|
||||
|
||||
- enabled Travis CI
|
||||
|
||||
0.24 2012-02-20 22:18:46 EST5EDT
|
||||
|
||||
- no changes from 0.23_03
|
||||
|
||||
0.23_03 2012-02-07 17:16:49 EST5EDT
|
||||
|
||||
- fixed: additional test regex fixed
|
||||
|
||||
0.23_02 2012-02-07 14:32:53 EST5EDT
|
||||
|
||||
- fixed: Perl 5.15 series Carp changes output format of messages (adds
|
||||
a period). This fixes the test regular expressions. [Andreas Koenig]
|
||||
|
||||
0.23_01 2012-02-02 10:41:31 EST5EDT
|
||||
|
||||
- added: the $Sub::Uplevel::CHECK_FRAMES global constant to enable the
|
||||
frame depth checking and compile it out if not needed. [Adam
|
||||
Kennedy]
|
||||
|
||||
0.22 Tue Nov 17 05:38:42 EST 2009
|
||||
|
||||
- meta: added repository to metadata [Alexandr Ciornii]
|
||||
|
||||
0.21_01 Sat Nov 29 15:24:49 EST 2008
|
||||
|
||||
- added: the ":aggressive" tag may be used to force reloading of
|
||||
Exporter, which often binds caller() prior to Sub::Uplevel's global
|
||||
override
|
||||
|
||||
0.2002 Thu Sep 11 14:33:09 EDT 2008
|
||||
|
||||
- changed: removed Exporter dependency
|
||||
|
||||
- test fix: fixed strange t/07_uplevel_too_high.t fail on Win32
|
||||
|
||||
0.2001 Tue Sep 9 22:22:40 EDT 2008
|
||||
|
||||
- test fix: changed prior override test to be more robust (SCHWERN)
|
||||
|
||||
0.20 Tue Sep 9 19:23:35 EDT 2008
|
||||
|
||||
- changed: bumped perl requirement to 5.006 and stopped using vars
|
||||
(fixes a test bug under Test::More > 0.80)
|
||||
|
||||
0.19_03 Fri Jul 4 13:31:21 EDT 2008
|
||||
|
||||
- fixed: load Carp only as needed (fixes problem on 5.005)
|
||||
|
||||
0.19_02 Thu Feb 21 14:58:46 EST 2008
|
||||
|
||||
- added: uplevel will warn if uplevel request is more than the call
|
||||
stack depth
|
||||
|
||||
0.1901 Thu Feb 14 14:07:37 EST 2008
|
||||
|
||||
- fixed: hides the "DB" package from indexers (DB used to support
|
||||
@DB::args)
|
||||
|
||||
0.19 Thu Feb 14 11:50:16 EST 2008
|
||||
|
||||
- bug fix: replacement caller() correctly sets @DB::args if calling
|
||||
package is DB
|
||||
|
||||
- repackaging: custom Build.PL, moved all author tests to xt/, added
|
||||
LICENSE and INSTALL files
|
||||
|
||||
0.18 Wed Oct 31 06:56:13 EDT 2007
|
||||
- release version of 0.17_01 changes
|
||||
|
||||
0.17_01
|
||||
- removed 5.006-specific language and tested on prerelease 5.00505
|
||||
|
||||
0.16 Mon Jul 30 09:54:41 EDT 2007
|
||||
- release version of 0.15_01 changes
|
||||
|
||||
0.15_01 Thu Jul 5 22:54:08 EDT 2007
|
||||
- Won't override any existing CORE::GLOBAL::caller when loaded
|
||||
- Localize global caller() override to the scope of the uplevel() call
|
||||
so it can play nicer with things like Contextual::Return and
|
||||
Hook::LexWrap that also override caller()
|
||||
|
||||
0.14 Sun Nov 5 23:38:46 EST 2006
|
||||
- fixed t/99_pod_coverage.t bug
|
||||
- added examples directory
|
||||
|
||||
0.13 Thu Jun 22 19:47:26 EDT 2006
|
||||
- fixed bug in Uplevel.t that caused test failure on FreeBSD for 5.8.0
|
||||
- fixed bug in Uplevel.t that caused test failure on bleadperl-5.9.4
|
||||
- removed ancient Test::More provided in t/lib
|
||||
- switched ok(eq_array()) tests to is_deeper() for better diagnostics
|
||||
- added pod/pod coverage checks
|
||||
- numbered tests
|
||||
|
||||
0.12 Fri May 12 18:33:40 EDT 2006
|
||||
- official release of the uplevel stack patch (fixes RT#13893)
|
||||
- added Build.PL and switched to boilerplate generated Makefile.PL
|
||||
- removed SIGNATURE due to recently discovered Module::Signature
|
||||
issues with newline handling and sub-key compatible keyservers
|
||||
- updated/added various meta files
|
||||
|
||||
0.11_01 Fri Apr 21 00:49:51 EDT 2006
|
||||
- uplevel now keeps a proper stack of uplevel calls allowing
|
||||
nesting of uplevel and non-uplevel calls
|
||||
|
||||
0.10 Thu Apr 20 19:15:20 EDT 2006
|
||||
- Stopped warnings about "undefined" on Perl 5.8.8
|
||||
- DAGOLDEN added as co-maintainer
|
||||
|
||||
0.09 Wed Jul 7 14:52:08 EDT 2004
|
||||
- Ok, ok. I'll put a license on this.
|
||||
|
||||
0.08 Wed Oct 22 09:02:38 PDT 2003
|
||||
- New die_check.t test was written in a non-portable manner.
|
||||
[Thanks Martin Thurn and cpantesters]
|
||||
|
||||
0.07 Tue Mar 18 03:03:22 GMT 2003
|
||||
- Fixed a test bug due to 5.6.0's differing Carp::croak stack output
|
||||
|
||||
0.06 Thu Sep 20 08:50:30 EDT 2001
|
||||
* Fixed a bug with deeply nested callers.
|
||||
* Fixed nested uplevel() calls.
|
||||
- Forgot to include Test::More dependency
|
||||
- Added 5.006 dependency to Makefile.PL
|
||||
- Removed unnecessary die and warn overrides
|
||||
- Added DIRE WARNING to the docs.
|
||||
|
||||
0.05 Wed Sep 19 06:00:12 EDT 2001
|
||||
* Things were still pretty broken. I *think* I have the tests
|
||||
sorted out now.
|
||||
* Blows over any CORE::GLOBAL::caller, die or warn you might have
|
||||
set. I'll fix this soon.
|
||||
|
||||
0.04 Wed Sep 19 04:28:19 EDT 2001
|
||||
* Ooops, we'd broken caller(). Turns out the tests were wrong.
|
||||
|
||||
0.03 Wed Sep 19 03:41:59 EDT 2001
|
||||
* Greatly simplified the uplevel logic
|
||||
|
||||
0.02 Wed Sep 19 03:03:10 EDT 2001
|
||||
* Fools croak()
|
||||
|
||||
0.01 Wed Sep 19 00:19:38 EDT 2001
|
||||
* First working version
|
||||
* Fools caller(), die() and warn().
|
||||
- Needs more work against, say, Carp.
|
||||
- Needs more work to check that it doesn't break the
|
||||
subtleties of caller, die and warn.
|
|
@ -0,0 +1,379 @@
|
|||
This software is copyright (c) 2017 by Michael Schwern and David Golden.
|
||||
|
||||
This is free software; you can redistribute it and/or modify it under
|
||||
the same terms as the Perl 5 programming language system itself.
|
||||
|
||||
Terms of the Perl programming language system itself
|
||||
|
||||
a) the GNU General Public License as published by the Free
|
||||
Software Foundation; either version 1, or (at your option) any
|
||||
later version, or
|
||||
b) the "Artistic License"
|
||||
|
||||
--- The GNU General Public License, Version 1, February 1989 ---
|
||||
|
||||
This software is Copyright (c) 2017 by Michael Schwern and David Golden.
|
||||
|
||||
This is free software, licensed under:
|
||||
|
||||
The GNU General Public License, Version 1, February 1989
|
||||
|
||||
GNU GENERAL PUBLIC LICENSE
|
||||
Version 1, February 1989
|
||||
|
||||
Copyright (C) 1989 Free Software Foundation, Inc.
|
||||
51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
|
||||
|
||||
Preamble
|
||||
|
||||
The license agreements of most software companies try to keep users
|
||||
at the mercy of those companies. By contrast, our General Public
|
||||
License is intended to guarantee your freedom to share and change free
|
||||
software--to make sure the software is free for all its users. The
|
||||
General Public License applies to the Free Software Foundation's
|
||||
software and to any other program whose authors commit to using it.
|
||||
You can use it for your programs, too.
|
||||
|
||||
When we speak of free software, we are referring to freedom, not
|
||||
price. Specifically, the General Public License is designed to make
|
||||
sure that you have the freedom to give away or sell copies of free
|
||||
software, that you receive source code or can get it if you want it,
|
||||
that you can change the software or use pieces of it in new free
|
||||
programs; and that you know you can do these things.
|
||||
|
||||
To protect your rights, we need to make restrictions that forbid
|
||||
anyone to deny you these rights or to ask you to surrender the rights.
|
||||
These restrictions translate to certain responsibilities for you if you
|
||||
distribute copies of the software, or if you modify it.
|
||||
|
||||
For example, if you distribute copies of a such a program, whether
|
||||
gratis or for a fee, you must give the recipients all the rights that
|
||||
you have. You must make sure that they, too, receive or can get the
|
||||
source code. And you must tell them their rights.
|
||||
|
||||
We protect your rights with two steps: (1) copyright the software, and
|
||||
(2) offer you this license which gives you legal permission to copy,
|
||||
distribute and/or modify the software.
|
||||
|
||||
Also, for each author's protection and ours, we want to make certain
|
||||
that everyone understands that there is no warranty for this free
|
||||
software. If the software is modified by someone else and passed on, we
|
||||
want its recipients to know that what they have is not the original, so
|
||||
that any problems introduced by others will not reflect on the original
|
||||
authors' reputations.
|
||||
|
||||
The precise terms and conditions for copying, distribution and
|
||||
modification follow.
|
||||
|
||||
GNU GENERAL PUBLIC LICENSE
|
||||
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
|
||||
|
||||
0. This License Agreement applies to any program or other work which
|
||||
contains a notice placed by the copyright holder saying it may be
|
||||
distributed under the terms of this General Public License. The
|
||||
"Program", below, refers to any such program or work, and a "work based
|
||||
on the Program" means either the Program or any work containing the
|
||||
Program or a portion of it, either verbatim or with modifications. Each
|
||||
licensee is addressed as "you".
|
||||
|
||||
1. You may copy and distribute verbatim copies of the Program's source
|
||||
code as you receive it, in any medium, provided that you conspicuously and
|
||||
appropriately publish on each copy an appropriate copyright notice and
|
||||
disclaimer of warranty; keep intact all the notices that refer to this
|
||||
General Public License and to the absence of any warranty; and give any
|
||||
other recipients of the Program a copy of this General Public License
|
||||
along with the Program. You may charge a fee for the physical act of
|
||||
transferring a copy.
|
||||
|
||||
2. You may modify your copy or copies of the Program or any portion of
|
||||
it, and copy and distribute such modifications under the terms of Paragraph
|
||||
1 above, provided that you also do the following:
|
||||
|
||||
a) cause the modified files to carry prominent notices stating that
|
||||
you changed the files and the date of any change; and
|
||||
|
||||
b) cause the whole of any work that you distribute or publish, that
|
||||
in whole or in part contains the Program or any part thereof, either
|
||||
with or without modifications, to be licensed at no charge to all
|
||||
third parties under the terms of this General Public License (except
|
||||
that you may choose to grant warranty protection to some or all
|
||||
third parties, at your option).
|
||||
|
||||
c) If the modified program normally reads commands interactively when
|
||||
run, you must cause it, when started running for such interactive use
|
||||
in the simplest and most usual way, to print or display an
|
||||
announcement including an appropriate copyright notice and a notice
|
||||
that there is no warranty (or else, saying that you provide a
|
||||
warranty) and that users may redistribute the program under these
|
||||
conditions, and telling the user how to view a copy of this General
|
||||
Public License.
|
||||
|
||||
d) You may charge a fee for the physical act of transferring a
|
||||
copy, and you may at your option offer warranty protection in
|
||||
exchange for a fee.
|
||||
|
||||
Mere aggregation of another independent work with the Program (or its
|
||||
derivative) on a volume of a storage or distribution medium does not bring
|
||||
the other work under the scope of these terms.
|
||||
|
||||
3. You may copy and distribute the Program (or a portion or derivative of
|
||||
it, under Paragraph 2) in object code or executable form under the terms of
|
||||
Paragraphs 1 and 2 above provided that you also do one of the following:
|
||||
|
||||
a) accompany it with the complete corresponding machine-readable
|
||||
source code, which must be distributed under the terms of
|
||||
Paragraphs 1 and 2 above; or,
|
||||
|
||||
b) accompany it with a written offer, valid for at least three
|
||||
years, to give any third party free (except for a nominal charge
|
||||
for the cost of distribution) a complete machine-readable copy of the
|
||||
corresponding source code, to be distributed under the terms of
|
||||
Paragraphs 1 and 2 above; or,
|
||||
|
||||
c) accompany it with the information you received as to where the
|
||||
corresponding source code may be obtained. (This alternative is
|
||||
allowed only for noncommercial distribution and only if you
|
||||
received the program in object code or executable form alone.)
|
||||
|
||||
Source code for a work means the preferred form of the work for making
|
||||
modifications to it. For an executable file, complete source code means
|
||||
all the source code for all modules it contains; but, as a special
|
||||
exception, it need not include source code for modules which are standard
|
||||
libraries that accompany the operating system on which the executable
|
||||
file runs, or for standard header files or definitions files that
|
||||
accompany that operating system.
|
||||
|
||||
4. You may not copy, modify, sublicense, distribute or transfer the
|
||||
Program except as expressly provided under this General Public License.
|
||||
Any attempt otherwise to copy, modify, sublicense, distribute or transfer
|
||||
the Program is void, and will automatically terminate your rights to use
|
||||
the Program under this License. However, parties who have received
|
||||
copies, or rights to use copies, from you under this General Public
|
||||
License will not have their licenses terminated so long as such parties
|
||||
remain in full compliance.
|
||||
|
||||
5. By copying, distributing or modifying the Program (or any work based
|
||||
on the Program) you indicate your acceptance of this license to do so,
|
||||
and all its terms and conditions.
|
||||
|
||||
6. Each time you redistribute the Program (or any work based on the
|
||||
Program), the recipient automatically receives a license from the original
|
||||
licensor to copy, distribute or modify the Program subject to these
|
||||
terms and conditions. You may not impose any further restrictions on the
|
||||
recipients' exercise of the rights granted herein.
|
||||
|
||||
7. The Free Software Foundation may publish revised and/or new versions
|
||||
of the General Public License from time to time. Such new versions will
|
||||
be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the Program
|
||||
specifies a version number of the license which applies to it and "any
|
||||
later version", you have the option of following the terms and conditions
|
||||
either of that version or of any later version published by the Free
|
||||
Software Foundation. If the Program does not specify a version number of
|
||||
the license, you may choose any version ever published by the Free Software
|
||||
Foundation.
|
||||
|
||||
8. If you wish to incorporate parts of the Program into other free
|
||||
programs whose distribution conditions are different, write to the author
|
||||
to ask for permission. For software which is copyrighted by the Free
|
||||
Software Foundation, write to the Free Software Foundation; we sometimes
|
||||
make exceptions for this. Our decision will be guided by the two goals
|
||||
of preserving the free status of all derivatives of our free software and
|
||||
of promoting the sharing and reuse of software generally.
|
||||
|
||||
NO WARRANTY
|
||||
|
||||
9. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
|
||||
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
|
||||
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
|
||||
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
|
||||
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
|
||||
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
|
||||
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
|
||||
REPAIR OR CORRECTION.
|
||||
|
||||
10. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
|
||||
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
|
||||
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
|
||||
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
|
||||
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
|
||||
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
|
||||
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
|
||||
POSSIBILITY OF SUCH DAMAGES.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
Appendix: How to Apply These Terms to Your New Programs
|
||||
|
||||
If you develop a new program, and you want it to be of the greatest
|
||||
possible use to humanity, the best way to achieve this is to make it
|
||||
free software which everyone can redistribute and change under these
|
||||
terms.
|
||||
|
||||
To do so, attach the following notices to the program. It is safest to
|
||||
attach them to the start of each source file to most effectively convey
|
||||
the exclusion of warranty; and each file should have at least the
|
||||
"copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the program's name and a brief idea of what it does.>
|
||||
Copyright (C) 19yy <name of author>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 1, or (at your option)
|
||||
any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
|
||||
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program is interactive, make it output a short notice like this
|
||||
when it starts in an interactive mode:
|
||||
|
||||
Gnomovision version 69, Copyright (C) 19xx name of author
|
||||
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
This is free software, and you are welcome to redistribute it
|
||||
under certain conditions; type `show c' for details.
|
||||
|
||||
The hypothetical commands `show w' and `show c' should show the
|
||||
appropriate parts of the General Public License. Of course, the
|
||||
commands you use may be called something other than `show w' and `show
|
||||
c'; they could even be mouse-clicks or menu items--whatever suits your
|
||||
program.
|
||||
|
||||
You should also get your employer (if you work as a programmer) or your
|
||||
school, if any, to sign a "copyright disclaimer" for the program, if
|
||||
necessary. Here a sample; alter the names:
|
||||
|
||||
Yoyodyne, Inc., hereby disclaims all copyright interest in the
|
||||
program `Gnomovision' (a program to direct compilers to make passes
|
||||
at assemblers) written by James Hacker.
|
||||
|
||||
<signature of Ty Coon>, 1 April 1989
|
||||
Ty Coon, President of Vice
|
||||
|
||||
That's all there is to it!
|
||||
|
||||
|
||||
--- The Artistic License 1.0 ---
|
||||
|
||||
This software is Copyright (c) 2017 by Michael Schwern and David Golden.
|
||||
|
||||
This is free software, licensed under:
|
||||
|
||||
The Artistic License 1.0
|
||||
|
||||
The Artistic License
|
||||
|
||||
Preamble
|
||||
|
||||
The intent of this document is to state the conditions under which a Package
|
||||
may be copied, such that the Copyright Holder maintains some semblance of
|
||||
artistic control over the development of the package, while giving the users of
|
||||
the package the right to use and distribute the Package in a more-or-less
|
||||
customary fashion, plus the right to make reasonable modifications.
|
||||
|
||||
Definitions:
|
||||
|
||||
- "Package" refers to the collection of files distributed by the Copyright
|
||||
Holder, and derivatives of that collection of files created through
|
||||
textual modification.
|
||||
- "Standard Version" refers to such a Package if it has not been modified,
|
||||
or has been modified in accordance with the wishes of the Copyright
|
||||
Holder.
|
||||
- "Copyright Holder" is whoever is named in the copyright or copyrights for
|
||||
the package.
|
||||
- "You" is you, if you're thinking about copying or distributing this Package.
|
||||
- "Reasonable copying fee" is whatever you can justify on the basis of media
|
||||
cost, duplication charges, time of people involved, and so on. (You will
|
||||
not be required to justify it to the Copyright Holder, but only to the
|
||||
computing community at large as a market that must bear the fee.)
|
||||
- "Freely Available" means that no fee is charged for the item itself, though
|
||||
there may be fees involved in handling the item. It also means that
|
||||
recipients of the item may redistribute it under the same conditions they
|
||||
received it.
|
||||
|
||||
1. You may make and give away verbatim copies of the source form of the
|
||||
Standard Version of this Package without restriction, provided that you
|
||||
duplicate all of the original copyright notices and associated disclaimers.
|
||||
|
||||
2. You may apply bug fixes, portability fixes and other modifications derived
|
||||
from the Public Domain or from the Copyright Holder. A Package modified in such
|
||||
a way shall still be considered the Standard Version.
|
||||
|
||||
3. You may otherwise modify your copy of this Package in any way, provided that
|
||||
you insert a prominent notice in each changed file stating how and when you
|
||||
changed that file, and provided that you do at least ONE of the following:
|
||||
|
||||
a) place your modifications in the Public Domain or otherwise make them
|
||||
Freely Available, such as by posting said modifications to Usenet or an
|
||||
equivalent medium, or placing the modifications on a major archive site
|
||||
such as ftp.uu.net, or by allowing the Copyright Holder to include your
|
||||
modifications in the Standard Version of the Package.
|
||||
|
||||
b) use the modified Package only within your corporation or organization.
|
||||
|
||||
c) rename any non-standard executables so the names do not conflict with
|
||||
standard executables, which must also be provided, and provide a separate
|
||||
manual page for each non-standard executable that clearly documents how it
|
||||
differs from the Standard Version.
|
||||
|
||||
d) make other distribution arrangements with the Copyright Holder.
|
||||
|
||||
4. You may distribute the programs of this Package in object code or executable
|
||||
form, provided that you do at least ONE of the following:
|
||||
|
||||
a) distribute a Standard Version of the executables and library files,
|
||||
together with instructions (in the manual page or equivalent) on where to
|
||||
get the Standard Version.
|
||||
|
||||
b) accompany the distribution with the machine-readable source of the Package
|
||||
with your modifications.
|
||||
|
||||
c) accompany any non-standard executables with their corresponding Standard
|
||||
Version executables, giving the non-standard executables non-standard
|
||||
names, and clearly documenting the differences in manual pages (or
|
||||
equivalent), together with instructions on where to get the Standard
|
||||
Version.
|
||||
|
||||
d) make other distribution arrangements with the Copyright Holder.
|
||||
|
||||
5. You may charge a reasonable copying fee for any distribution of this
|
||||
Package. You may charge any fee you choose for support of this Package. You
|
||||
may not charge a fee for this Package itself. However, you may distribute this
|
||||
Package in aggregate with other (possibly commercial) programs as part of a
|
||||
larger (possibly commercial) software distribution provided that you do not
|
||||
advertise this Package as a product of your own.
|
||||
|
||||
6. The scripts and library files supplied as input to or produced as output
|
||||
from the programs of this Package do not automatically fall under the copyright
|
||||
of this Package, but belong to whomever generated them, and may be sold
|
||||
commercially, and may be aggregated with this Package.
|
||||
|
||||
7. C or perl subroutines supplied by you and linked into this Package shall not
|
||||
be considered part of this Package.
|
||||
|
||||
8. The name of the Copyright Holder may not be used to endorse or promote
|
||||
products derived from this software without specific prior written permission.
|
||||
|
||||
9. THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
|
||||
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
|
||||
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
||||
|
||||
The End
|
||||
|
|
@ -0,0 +1,37 @@
|
|||
# This file was automatically generated by Dist::Zilla::Plugin::Manifest v6.009.
|
||||
CONTRIBUTING.mkdn
|
||||
Changes
|
||||
LICENSE
|
||||
MANIFEST
|
||||
META.json
|
||||
META.yml
|
||||
Makefile.PL
|
||||
README
|
||||
cpanfile
|
||||
dist.ini
|
||||
examples/uplevel-demo.pl
|
||||
lib/Sub/Uplevel.pm
|
||||
perlcritic.rc
|
||||
t/00-report-prereqs.dd
|
||||
t/00-report-prereqs.t
|
||||
t/01_die_check.t
|
||||
t/02_uplevel.t
|
||||
t/03_nested_uplevels.t
|
||||
t/04_honor_later_override.t
|
||||
t/05_honor_prior_override.t
|
||||
t/06_db_args.t
|
||||
t/07_uplevel_too_high.t
|
||||
t/08_exporter.t
|
||||
t/09_emptylist.t
|
||||
t/lib/Bar.pm
|
||||
t/lib/Foo.pm
|
||||
t/lib/MyImporter.pm
|
||||
xt/author/00-compile.t
|
||||
xt/author/critic.t
|
||||
xt/author/pod-coverage.t
|
||||
xt/author/pod-spell.t
|
||||
xt/author/pod-syntax.t
|
||||
xt/author/portability.t
|
||||
xt/author/test-version.t
|
||||
xt/release/distmeta.t
|
||||
xt/release/minimum-version.t
|
|
@ -0,0 +1,112 @@
|
|||
{
|
||||
"abstract" : "apparently run a function in a higher stack frame",
|
||||
"author" : [
|
||||
"Michael Schwern <mschwern@cpan.org>",
|
||||
"David Golden <dagolden@cpan.org>"
|
||||
],
|
||||
"dynamic_config" : 0,
|
||||
"generated_by" : "Dist::Zilla version 6.009, CPAN::Meta::Converter version 2.150010",
|
||||
"license" : [
|
||||
"perl_5"
|
||||
],
|
||||
"meta-spec" : {
|
||||
"url" : "http://search.cpan.org/perldoc?CPAN::Meta::Spec",
|
||||
"version" : 2
|
||||
},
|
||||
"name" : "Sub-Uplevel",
|
||||
"no_index" : {
|
||||
"directory" : [
|
||||
"corpus",
|
||||
"examples",
|
||||
"t",
|
||||
"xt"
|
||||
],
|
||||
"package" : [
|
||||
"DB"
|
||||
]
|
||||
},
|
||||
"prereqs" : {
|
||||
"configure" : {
|
||||
"requires" : {
|
||||
"ExtUtils::MakeMaker" : "6.17",
|
||||
"perl" : "5.006"
|
||||
}
|
||||
},
|
||||
"develop" : {
|
||||
"requires" : {
|
||||
"Dist::Zilla" : "5",
|
||||
"Dist::Zilla::Plugin::ReleaseStatus::FromVersion" : "0",
|
||||
"Dist::Zilla::PluginBundle::DAGOLDEN" : "0.073",
|
||||
"English" : "0",
|
||||
"File::Spec" : "0",
|
||||
"File::Temp" : "0",
|
||||
"IO::Handle" : "0",
|
||||
"IPC::Open3" : "0",
|
||||
"Pod::Coverage::TrustPod" : "0",
|
||||
"Pod::Wordlist" : "0",
|
||||
"Software::License::Perl_5" : "0",
|
||||
"Test::CPAN::Meta" : "0",
|
||||
"Test::MinimumVersion" : "0",
|
||||
"Test::More" : "0",
|
||||
"Test::Pod" : "1.41",
|
||||
"Test::Pod::Coverage" : "1.08",
|
||||
"Test::Portability::Files" : "0",
|
||||
"Test::Spelling" : "0.12",
|
||||
"Test::Version" : "1",
|
||||
"blib" : "1.01"
|
||||
}
|
||||
},
|
||||
"runtime" : {
|
||||
"requires" : {
|
||||
"Carp" : "0",
|
||||
"constant" : "0",
|
||||
"perl" : "5.006",
|
||||
"strict" : "0",
|
||||
"warnings" : "0"
|
||||
}
|
||||
},
|
||||
"test" : {
|
||||
"recommends" : {
|
||||
"CPAN::Meta" : "2.120900"
|
||||
},
|
||||
"requires" : {
|
||||
"Exporter" : "0",
|
||||
"ExtUtils::MakeMaker" : "0",
|
||||
"File::Spec" : "0",
|
||||
"Test::More" : "0",
|
||||
"lib" : "0",
|
||||
"perl" : "5.006"
|
||||
}
|
||||
}
|
||||
},
|
||||
"provides" : {
|
||||
"Sub::Uplevel" : {
|
||||
"file" : "lib/Sub/Uplevel.pm",
|
||||
"version" : "0.2800"
|
||||
}
|
||||
},
|
||||
"release_status" : "stable",
|
||||
"resources" : {
|
||||
"bugtracker" : {
|
||||
"web" : "https://github.com/Perl-Toolchain-Gang/Sub-Uplevel/issues"
|
||||
},
|
||||
"homepage" : "https://github.com/Perl-Toolchain-Gang/Sub-Uplevel",
|
||||
"repository" : {
|
||||
"type" : "git",
|
||||
"url" : "https://github.com/Perl-Toolchain-Gang/Sub-Uplevel.git",
|
||||
"web" : "https://github.com/Perl-Toolchain-Gang/Sub-Uplevel"
|
||||
}
|
||||
},
|
||||
"version" : "0.2800",
|
||||
"x_authority" : "cpan:DAGOLDEN",
|
||||
"x_contributors" : [
|
||||
"Adam Kennedy <adamk@cpan.org>",
|
||||
"Alexandr Ciornii <alexchorny@gmail.com>",
|
||||
"David Golden <xdg@xdg.me>",
|
||||
"Graham Ollis <plicease@cpan.org>",
|
||||
"J. Nick Koston <nick@cpanel.net>",
|
||||
"Michael Gray <mg13@sanger.ac.uk>"
|
||||
],
|
||||
"x_serialization_backend" : "Cpanel::JSON::XS version 3.0225"
|
||||
}
|
||||
|
|
@ -0,0 +1,54 @@
|
|||
---
|
||||
abstract: 'apparently run a function in a higher stack frame'
|
||||
author:
|
||||
- 'Michael Schwern <mschwern@cpan.org>'
|
||||
- 'David Golden <dagolden@cpan.org>'
|
||||
build_requires:
|
||||
Exporter: '0'
|
||||
ExtUtils::MakeMaker: '0'
|
||||
File::Spec: '0'
|
||||
Test::More: '0'
|
||||
lib: '0'
|
||||
perl: '5.006'
|
||||
configure_requires:
|
||||
ExtUtils::MakeMaker: '6.17'
|
||||
perl: '5.006'
|
||||
dynamic_config: 0
|
||||
generated_by: 'Dist::Zilla version 6.009, CPAN::Meta::Converter version 2.150010'
|
||||
license: perl
|
||||
meta-spec:
|
||||
url: http://module-build.sourceforge.net/META-spec-v1.4.html
|
||||
version: '1.4'
|
||||
name: Sub-Uplevel
|
||||
no_index:
|
||||
directory:
|
||||
- corpus
|
||||
- examples
|
||||
- t
|
||||
- xt
|
||||
package:
|
||||
- DB
|
||||
provides:
|
||||
Sub::Uplevel:
|
||||
file: lib/Sub/Uplevel.pm
|
||||
version: '0.2800'
|
||||
requires:
|
||||
Carp: '0'
|
||||
constant: '0'
|
||||
perl: '5.006'
|
||||
strict: '0'
|
||||
warnings: '0'
|
||||
resources:
|
||||
bugtracker: https://github.com/Perl-Toolchain-Gang/Sub-Uplevel/issues
|
||||
homepage: https://github.com/Perl-Toolchain-Gang/Sub-Uplevel
|
||||
repository: https://github.com/Perl-Toolchain-Gang/Sub-Uplevel.git
|
||||
version: '0.2800'
|
||||
x_authority: cpan:DAGOLDEN
|
||||
x_contributors:
|
||||
- 'Adam Kennedy <adamk@cpan.org>'
|
||||
- 'Alexandr Ciornii <alexchorny@gmail.com>'
|
||||
- 'David Golden <xdg@xdg.me>'
|
||||
- 'Graham Ollis <plicease@cpan.org>'
|
||||
- 'J. Nick Koston <nick@cpanel.net>'
|
||||
- 'Michael Gray <mg13@sanger.ac.uk>'
|
||||
x_serialization_backend: 'YAML::Tiny version 1.69'
|
|
@ -0,0 +1,61 @@
|
|||
# This file was automatically generated by Dist::Zilla::Plugin::MakeMaker v6.009.
|
||||
use strict;
|
||||
use warnings;
|
||||
|
||||
use 5.006;
|
||||
|
||||
use ExtUtils::MakeMaker 6.17;
|
||||
|
||||
my %WriteMakefileArgs = (
|
||||
"ABSTRACT" => "apparently run a function in a higher stack frame",
|
||||
"AUTHOR" => "Michael Schwern <mschwern\@cpan.org>, David Golden <dagolden\@cpan.org>",
|
||||
"CONFIGURE_REQUIRES" => {
|
||||
"ExtUtils::MakeMaker" => "6.17"
|
||||
},
|
||||
"DISTNAME" => "Sub-Uplevel",
|
||||
"LICENSE" => "perl",
|
||||
"MIN_PERL_VERSION" => "5.006",
|
||||
"NAME" => "Sub::Uplevel",
|
||||
"PREREQ_PM" => {
|
||||
"Carp" => 0,
|
||||
"constant" => 0,
|
||||
"strict" => 0,
|
||||
"warnings" => 0
|
||||
},
|
||||
"TEST_REQUIRES" => {
|
||||
"Exporter" => 0,
|
||||
"ExtUtils::MakeMaker" => 0,
|
||||
"File::Spec" => 0,
|
||||
"Test::More" => 0,
|
||||
"lib" => 0
|
||||
},
|
||||
"VERSION" => "0.2800",
|
||||
"test" => {
|
||||
"TESTS" => "t/*.t"
|
||||
}
|
||||
);
|
||||
|
||||
|
||||
my %FallbackPrereqs = (
|
||||
"Carp" => 0,
|
||||
"Exporter" => 0,
|
||||
"ExtUtils::MakeMaker" => 0,
|
||||
"File::Spec" => 0,
|
||||
"Test::More" => 0,
|
||||
"constant" => 0,
|
||||
"lib" => 0,
|
||||
"strict" => 0,
|
||||
"warnings" => 0
|
||||
);
|
||||
|
||||
|
||||
unless ( eval { ExtUtils::MakeMaker->VERSION(6.63_03) } ) {
|
||||
delete $WriteMakefileArgs{TEST_REQUIRES};
|
||||
delete $WriteMakefileArgs{BUILD_REQUIRES};
|
||||
$WriteMakefileArgs{PREREQ_PM} = \%FallbackPrereqs;
|
||||
}
|
||||
|
||||
delete $WriteMakefileArgs{CONFIGURE_REQUIRES}
|
||||
unless eval { ExtUtils::MakeMaker->VERSION(6.52) };
|
||||
|
||||
WriteMakefile(%WriteMakefileArgs);
|
|
@ -0,0 +1,170 @@
|
|||
NAME
|
||||
Sub::Uplevel - apparently run a function in a higher stack frame
|
||||
|
||||
VERSION
|
||||
version 0.2800
|
||||
|
||||
SYNOPSIS
|
||||
use Sub::Uplevel;
|
||||
|
||||
sub foo {
|
||||
print join " - ", caller;
|
||||
}
|
||||
|
||||
sub bar {
|
||||
uplevel 1, \&foo;
|
||||
}
|
||||
|
||||
#line 11
|
||||
bar(); # main - foo.plx - 11
|
||||
|
||||
DESCRIPTION
|
||||
Like Tcl's uplevel() function, but not quite so dangerous. The idea is
|
||||
just to fool caller(). All the really naughty bits of Tcl's uplevel()
|
||||
are avoided.
|
||||
|
||||
THIS IS NOT THE SORT OF THING YOU WANT TO DO EVERYDAY
|
||||
|
||||
uplevel
|
||||
uplevel $num_frames, \&func, @args;
|
||||
|
||||
Makes the given function think it's being executed $num_frames
|
||||
higher than the current stack level. So when they use
|
||||
caller($frames) it will actually give caller($frames + $num_frames)
|
||||
for them.
|
||||
|
||||
"uplevel(1, \&some_func, @_)" is effectively "goto &some_func" but
|
||||
you don't immediately exit the current subroutine. So while you
|
||||
can't do this:
|
||||
|
||||
sub wrapper {
|
||||
print "Before\n";
|
||||
goto &some_func;
|
||||
print "After\n";
|
||||
}
|
||||
|
||||
you can do this:
|
||||
|
||||
sub wrapper {
|
||||
print "Before\n";
|
||||
my @out = uplevel 1, &some_func;
|
||||
print "After\n";
|
||||
return @out;
|
||||
}
|
||||
|
||||
"uplevel" has the ability to issue a warning if $num_frames is more
|
||||
than the current call stack depth, although this warning is disabled
|
||||
and compiled out by default as the check is relatively expensive.
|
||||
|
||||
To enable the check for debugging or testing, you should set the
|
||||
global $Sub::Uplevel::CHECK_FRAMES to true before loading
|
||||
Sub::Uplevel for the first time as follows:
|
||||
|
||||
#!/usr/bin/perl
|
||||
|
||||
BEGIN {
|
||||
$Sub::Uplevel::CHECK_FRAMES = 1;
|
||||
}
|
||||
use Sub::Uplevel;
|
||||
|
||||
Setting or changing the global after the module has been loaded will
|
||||
have no effect.
|
||||
|
||||
EXAMPLE
|
||||
The main reason I wrote this module is so I could write wrappers around
|
||||
functions and they wouldn't be aware they've been wrapped.
|
||||
|
||||
use Sub::Uplevel;
|
||||
|
||||
my $original_foo = \&foo;
|
||||
|
||||
*foo = sub {
|
||||
my @output = uplevel 1, $original_foo;
|
||||
print "foo() returned: @output";
|
||||
return @output;
|
||||
};
|
||||
|
||||
If this code frightens you you should not use this module.
|
||||
|
||||
BUGS and CAVEATS
|
||||
Well, the bad news is uplevel() is about 5 times slower than a normal
|
||||
function call. XS implementation anyone? It also slows down every
|
||||
invocation of caller(), regardless of whether uplevel() is in effect.
|
||||
|
||||
Sub::Uplevel overrides CORE::GLOBAL::caller temporarily for the scope of
|
||||
each uplevel call. It does its best to work with any previously existing
|
||||
CORE::GLOBAL::caller (both when Sub::Uplevel is first loaded and within
|
||||
each uplevel call) such as from Contextual::Return or Hook::LexWrap.
|
||||
|
||||
However, if you are routinely using multiple modules that override
|
||||
CORE::GLOBAL::caller, you are probably asking for trouble.
|
||||
|
||||
You should load Sub::Uplevel as early as possible within your program.
|
||||
As with all CORE::GLOBAL overloading, the overload will not affect
|
||||
modules that have already been compiled prior to the overload. One
|
||||
module that often is unavoidably loaded prior to Sub::Uplevel is
|
||||
Exporter. To forcibly recompile Exporter (and Exporter::Heavy) after
|
||||
loading Sub::Uplevel, use it with the ":aggressive" tag:
|
||||
|
||||
use Sub::Uplevel qw/:aggressive/;
|
||||
|
||||
The private function "Sub::Uplevel::_force_reload()" may be passed a
|
||||
list of additional modules to reload if ":aggressive" is not aggressive
|
||||
enough. Reloading modules may break things, so only use this as a last
|
||||
resort.
|
||||
|
||||
As of version 0.20, Sub::Uplevel requires Perl 5.6 or greater.
|
||||
|
||||
HISTORY
|
||||
Those who do not learn from HISTORY are doomed to repeat it.
|
||||
|
||||
The lesson here is simple: Don't sit next to a Tcl programmer at the
|
||||
dinner table.
|
||||
|
||||
THANKS
|
||||
Thanks to Brent Welch, Damian Conway and Robin Houston.
|
||||
|
||||
See http://www.perl.com/perl/misc/Artistic.html
|
||||
|
||||
SEE ALSO
|
||||
PadWalker (for the similar idea with lexicals), Hook::LexWrap, Tcl's
|
||||
uplevel() at http://www.scriptics.com/man/tcl8.4/TclCmd/uplevel.htm
|
||||
|
||||
SUPPORT
|
||||
Bugs / Feature Requests
|
||||
Please report any bugs or feature requests through the issue tracker at
|
||||
<https://github.com/Perl-Toolchain-Gang/Sub-Uplevel/issues>. You will be
|
||||
notified automatically of any progress on your issue.
|
||||
|
||||
Source Code
|
||||
This is open source software. The code repository is available for
|
||||
public review and contribution under the terms of the license.
|
||||
|
||||
<https://github.com/Perl-Toolchain-Gang/Sub-Uplevel>
|
||||
|
||||
git clone https://github.com/Perl-Toolchain-Gang/Sub-Uplevel.git
|
||||
|
||||
AUTHORS
|
||||
* Michael Schwern <mschwern@cpan.org>
|
||||
|
||||
* David Golden <dagolden@cpan.org>
|
||||
|
||||
CONTRIBUTORS
|
||||
* Adam Kennedy <adamk@cpan.org>
|
||||
|
||||
* Alexandr Ciornii <alexchorny@gmail.com>
|
||||
|
||||
* David Golden <xdg@xdg.me>
|
||||
|
||||
* Graham Ollis <plicease@cpan.org>
|
||||
|
||||
* J. Nick Koston <nick@cpanel.net>
|
||||
|
||||
* Michael Gray <mg13@sanger.ac.uk>
|
||||
|
||||
COPYRIGHT AND LICENSE
|
||||
This software is copyright (c) 2017 by Michael Schwern and David Golden.
|
||||
|
||||
This is free software; you can redistribute it and/or modify it under
|
||||
the same terms as the Perl 5 programming language system itself.
|
||||
|
|
@ -0,0 +1,46 @@
|
|||
requires "Carp" => "0";
|
||||
requires "constant" => "0";
|
||||
requires "perl" => "5.006";
|
||||
requires "strict" => "0";
|
||||
requires "warnings" => "0";
|
||||
|
||||
on 'test' => sub {
|
||||
requires "Exporter" => "0";
|
||||
requires "ExtUtils::MakeMaker" => "0";
|
||||
requires "File::Spec" => "0";
|
||||
requires "Test::More" => "0";
|
||||
requires "lib" => "0";
|
||||
requires "perl" => "5.006";
|
||||
};
|
||||
|
||||
on 'test' => sub {
|
||||
recommends "CPAN::Meta" => "2.120900";
|
||||
};
|
||||
|
||||
on 'configure' => sub {
|
||||
requires "ExtUtils::MakeMaker" => "6.17";
|
||||
requires "perl" => "5.006";
|
||||
};
|
||||
|
||||
on 'develop' => sub {
|
||||
requires "Dist::Zilla" => "5";
|
||||
requires "Dist::Zilla::Plugin::ReleaseStatus::FromVersion" => "0";
|
||||
requires "Dist::Zilla::PluginBundle::DAGOLDEN" => "0.073";
|
||||
requires "English" => "0";
|
||||
requires "File::Spec" => "0";
|
||||
requires "File::Temp" => "0";
|
||||
requires "IO::Handle" => "0";
|
||||
requires "IPC::Open3" => "0";
|
||||
requires "Pod::Coverage::TrustPod" => "0";
|
||||
requires "Pod::Wordlist" => "0";
|
||||
requires "Software::License::Perl_5" => "0";
|
||||
requires "Test::CPAN::Meta" => "0";
|
||||
requires "Test::MinimumVersion" => "0";
|
||||
requires "Test::More" => "0";
|
||||
requires "Test::Pod" => "1.41";
|
||||
requires "Test::Pod::Coverage" => "1.08";
|
||||
requires "Test::Portability::Files" => "0";
|
||||
requires "Test::Spelling" => "0.12";
|
||||
requires "Test::Version" => "1";
|
||||
requires "blib" => "1.01";
|
||||
};
|
|
@ -0,0 +1,15 @@
|
|||
name = Sub-Uplevel
|
||||
author = Michael Schwern <mschwern@cpan.org>
|
||||
author = David Golden <dagolden@cpan.org>
|
||||
license = Perl_5
|
||||
copyright_holder = Michael Schwern and David Golden
|
||||
|
||||
[@DAGOLDEN]
|
||||
:version = 0.073
|
||||
stopwords = PadWalker
|
||||
stopwords = Tcl's
|
||||
stopwords = Welch
|
||||
stopwords = uplevel
|
||||
|
||||
[ReleaseStatus::FromVersion]
|
||||
testing = second_decimal_odd
|
|
@ -0,0 +1,23 @@
|
|||
use strict;
|
||||
use warnings;
|
||||
|
||||
use Sub::Uplevel;
|
||||
|
||||
# subroutine A calls subroutine B with uplevel(), so when
|
||||
# subroutine B queries caller(), it gets main as the caller (just
|
||||
# like subroutine A) instead of getting subroutine A
|
||||
|
||||
sub sub_a {
|
||||
print "Entering Subroutine A\n";
|
||||
print "caller() says: ", join( ", ", (caller())[0 .. 2] ), "\n";
|
||||
print "Calling B with uplevel\n";
|
||||
uplevel 1, \&sub_b;
|
||||
}
|
||||
|
||||
sub sub_b {
|
||||
print "Entering Subroutine B\n";
|
||||
print "caller() says: ", join( ", ", (caller())[0 .. 2] ), "\n";
|
||||
}
|
||||
|
||||
sub_a();
|
||||
|
|
@ -0,0 +1,610 @@
|
|||
package Sub::Uplevel;
|
||||
use 5.006;
|
||||
use strict;
|
||||
# ABSTRACT: apparently run a function in a higher stack frame
|
||||
|
||||
our $VERSION = '0.2800';
|
||||
|
||||
# Frame check global constant
|
||||
our $CHECK_FRAMES;
|
||||
BEGIN {
|
||||
$CHECK_FRAMES = !! $CHECK_FRAMES;
|
||||
}
|
||||
use constant CHECK_FRAMES => $CHECK_FRAMES;
|
||||
|
||||
# We must override *CORE::GLOBAL::caller if it hasn't already been
|
||||
# overridden or else Perl won't see our local override later.
|
||||
|
||||
if ( not defined *CORE::GLOBAL::caller{CODE} ) {
|
||||
*CORE::GLOBAL::caller = \&_normal_caller;
|
||||
}
|
||||
|
||||
# modules to force reload if ":aggressive" is specified
|
||||
my @reload_list = qw/Exporter Exporter::Heavy/;
|
||||
|
||||
sub import {
|
||||
no strict 'refs'; ## no critic
|
||||
my ($class, @args) = @_;
|
||||
for my $tag ( @args, 'uplevel' ) {
|
||||
if ( $tag eq 'uplevel' ) {
|
||||
my $caller = caller(0);
|
||||
*{"$caller\::uplevel"} = \&uplevel;
|
||||
}
|
||||
elsif( $tag eq ':aggressive' ) {
|
||||
_force_reload( @reload_list );
|
||||
}
|
||||
else {
|
||||
die qq{"$tag" is not exported by the $class module\n}
|
||||
}
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
sub _force_reload {
|
||||
no warnings 'redefine';
|
||||
local $^W = 0;
|
||||
for my $m ( @_ ) {
|
||||
$m =~ s{::}{/}g;
|
||||
$m .= ".pm";
|
||||
require $m if delete $INC{$m};
|
||||
}
|
||||
}
|
||||
|
||||
#pod =head1 SYNOPSIS
|
||||
#pod
|
||||
#pod use Sub::Uplevel;
|
||||
#pod
|
||||
#pod sub foo {
|
||||
#pod print join " - ", caller;
|
||||
#pod }
|
||||
#pod
|
||||
#pod sub bar {
|
||||
#pod uplevel 1, \&foo;
|
||||
#pod }
|
||||
#pod
|
||||
#pod #line 11
|
||||
#pod bar(); # main - foo.plx - 11
|
||||
#pod
|
||||
#pod =head1 DESCRIPTION
|
||||
#pod
|
||||
#pod Like Tcl's uplevel() function, but not quite so dangerous. The idea
|
||||
#pod is just to fool caller(). All the really naughty bits of Tcl's
|
||||
#pod uplevel() are avoided.
|
||||
#pod
|
||||
#pod B<THIS IS NOT THE SORT OF THING YOU WANT TO DO EVERYDAY>
|
||||
#pod
|
||||
#pod =over 4
|
||||
#pod
|
||||
#pod =item B<uplevel>
|
||||
#pod
|
||||
#pod uplevel $num_frames, \&func, @args;
|
||||
#pod
|
||||
#pod Makes the given function think it's being executed $num_frames higher
|
||||
#pod than the current stack level. So when they use caller($frames) it
|
||||
#pod will actually give caller($frames + $num_frames) for them.
|
||||
#pod
|
||||
#pod C<uplevel(1, \&some_func, @_)> is effectively C<goto &some_func> but
|
||||
#pod you don't immediately exit the current subroutine. So while you can't
|
||||
#pod do this:
|
||||
#pod
|
||||
#pod sub wrapper {
|
||||
#pod print "Before\n";
|
||||
#pod goto &some_func;
|
||||
#pod print "After\n";
|
||||
#pod }
|
||||
#pod
|
||||
#pod you can do this:
|
||||
#pod
|
||||
#pod sub wrapper {
|
||||
#pod print "Before\n";
|
||||
#pod my @out = uplevel 1, &some_func;
|
||||
#pod print "After\n";
|
||||
#pod return @out;
|
||||
#pod }
|
||||
#pod
|
||||
#pod C<uplevel> has the ability to issue a warning if C<$num_frames> is more than
|
||||
#pod the current call stack depth, although this warning is disabled and compiled
|
||||
#pod out by default as the check is relatively expensive.
|
||||
#pod
|
||||
#pod To enable the check for debugging or testing, you should set the global
|
||||
#pod C<$Sub::Uplevel::CHECK_FRAMES> to true before loading Sub::Uplevel for the
|
||||
#pod first time as follows:
|
||||
#pod
|
||||
#pod #!/usr/bin/perl
|
||||
#pod
|
||||
#pod BEGIN {
|
||||
#pod $Sub::Uplevel::CHECK_FRAMES = 1;
|
||||
#pod }
|
||||
#pod use Sub::Uplevel;
|
||||
#pod
|
||||
#pod Setting or changing the global after the module has been loaded will have
|
||||
#pod no effect.
|
||||
#pod
|
||||
#pod =cut
|
||||
|
||||
# @Up_Frames -- uplevel stack
|
||||
# $Caller_Proxy -- whatever caller() override was in effect before uplevel
|
||||
our (@Up_Frames, $Caller_Proxy);
|
||||
|
||||
sub _apparent_stack_height {
|
||||
my $height = 1; # start above this function
|
||||
while ( 1 ) {
|
||||
last if ! defined scalar $Caller_Proxy->($height);
|
||||
$height++;
|
||||
}
|
||||
return $height - 1; # subtract 1 for this function
|
||||
}
|
||||
|
||||
sub uplevel {
|
||||
# Backwards compatible version of "no warnings 'redefine'"
|
||||
my $old_W = $^W;
|
||||
$^W = 0;
|
||||
|
||||
# Update the caller proxy if the uplevel override isn't in effect
|
||||
local $Caller_Proxy = *CORE::GLOBAL::caller{CODE}
|
||||
if *CORE::GLOBAL::caller{CODE} != \&_uplevel_caller;
|
||||
local *CORE::GLOBAL::caller = \&_uplevel_caller;
|
||||
|
||||
# Restore old warnings state
|
||||
$^W = $old_W;
|
||||
|
||||
if ( CHECK_FRAMES and $_[0] >= _apparent_stack_height() ) {
|
||||
require Carp;
|
||||
Carp::carp("uplevel $_[0] is more than the caller stack");
|
||||
}
|
||||
|
||||
local @Up_Frames = (shift, @Up_Frames );
|
||||
|
||||
my $function = shift;
|
||||
return $function->(@_);
|
||||
}
|
||||
|
||||
sub _normal_caller (;$) { ## no critic Prototypes
|
||||
my ($height) = @_;
|
||||
$height++;
|
||||
my @caller = CORE::caller($height);
|
||||
if ( CORE::caller() eq 'DB' ) {
|
||||
# Oops, redo picking up @DB::args
|
||||
package DB;
|
||||
@caller = CORE::caller($height);
|
||||
}
|
||||
|
||||
return if ! @caller; # empty
|
||||
return $caller[0] if ! wantarray; # scalar context
|
||||
return @_ ? @caller : @caller[0..2]; # extra info or regular
|
||||
}
|
||||
|
||||
sub _uplevel_caller (;$) { ## no critic Prototypes
|
||||
my $height = $_[0] || 0;
|
||||
|
||||
# shortcut if no uplevels have been called
|
||||
# always add +1 to CORE::caller (proxy caller function)
|
||||
# to skip this function's caller
|
||||
return $Caller_Proxy->( $height + 1 ) if ! @Up_Frames;
|
||||
|
||||
#pod =begin _private
|
||||
#pod
|
||||
#pod So it has to work like this:
|
||||
#pod
|
||||
#pod Call stack Actual uplevel 1
|
||||
#pod CORE::GLOBAL::caller
|
||||
#pod Carp::short_error_loc 0
|
||||
#pod Carp::shortmess_heavy 1 0
|
||||
#pod Carp::croak 2 1
|
||||
#pod try_croak 3 2
|
||||
#pod uplevel 4
|
||||
#pod function_that_called_uplevel 5
|
||||
#pod caller_we_want_to_see 6 3
|
||||
#pod its_caller 7 4
|
||||
#pod
|
||||
#pod So when caller(X) winds up below uplevel(), it only has to use
|
||||
#pod CORE::caller(X+1) (to skip CORE::GLOBAL::caller). But when caller(X)
|
||||
#pod winds up no or above uplevel(), it's CORE::caller(X+1+uplevel+1).
|
||||
#pod
|
||||
#pod Which means I'm probably going to have to do something nasty like walk
|
||||
#pod up the call stack on each caller() to see if I'm going to wind up
|
||||
#pod before or after Sub::Uplevel::uplevel().
|
||||
#pod
|
||||
#pod =end _private
|
||||
#pod
|
||||
#pod =begin _dagolden
|
||||
#pod
|
||||
#pod I found the description above a bit confusing. Instead, this is the logic
|
||||
#pod that I found clearer when CORE::GLOBAL::caller is invoked and we have to
|
||||
#pod walk up the call stack:
|
||||
#pod
|
||||
#pod * if searching up to the requested height in the real call stack doesn't find
|
||||
#pod a call to uplevel, then we can return the result at that height in the
|
||||
#pod call stack
|
||||
#pod
|
||||
#pod * if we find a call to uplevel, we need to keep searching upwards beyond the
|
||||
#pod requested height at least by the amount of upleveling requested for that
|
||||
#pod call to uplevel (from the Up_Frames stack set during the uplevel call)
|
||||
#pod
|
||||
#pod * additionally, we need to hide the uplevel subroutine call, too, so we search
|
||||
#pod upwards one more level for each call to uplevel
|
||||
#pod
|
||||
#pod * when we've reached the top of the search, we want to return that frame
|
||||
#pod in the call stack, i.e. the requested height plus any uplevel adjustments
|
||||
#pod found during the search
|
||||
#pod
|
||||
#pod =end _dagolden
|
||||
#pod
|
||||
#pod =cut
|
||||
|
||||
my $saw_uplevel = 0;
|
||||
my $adjust = 0;
|
||||
|
||||
# walk up the call stack to fight the right package level to return;
|
||||
# look one higher than requested for each call to uplevel found
|
||||
# and adjust by the amount found in the Up_Frames stack for that call.
|
||||
# We *must* use CORE::caller here since we need the real stack not what
|
||||
# some other override says the stack looks like, just in case that other
|
||||
# override breaks things in some horrible way
|
||||
my $test_caller;
|
||||
for ( my $up = 0; $up <= $height + $adjust; $up++ ) {
|
||||
$test_caller = scalar CORE::caller($up + 1);
|
||||
if( $test_caller && $test_caller eq __PACKAGE__ ) {
|
||||
# add one for each uplevel call seen
|
||||
# and look into the uplevel stack for the offset
|
||||
$adjust += 1 + $Up_Frames[$saw_uplevel];
|
||||
$saw_uplevel++;
|
||||
}
|
||||
}
|
||||
|
||||
# For returning values, we pass through the call to the proxy caller
|
||||
# function, just at a higher stack level
|
||||
my @caller = $Caller_Proxy->($height + $adjust + 1);
|
||||
if ( CORE::caller() eq 'DB' ) {
|
||||
# Oops, redo picking up @DB::args
|
||||
package DB;
|
||||
@caller = $Sub::Uplevel::Caller_Proxy->($height + $adjust + 1);
|
||||
}
|
||||
|
||||
return if ! @caller; # empty
|
||||
return $caller[0] if ! wantarray; # scalar context
|
||||
return @_ ? @caller : @caller[0..2]; # extra info or regular
|
||||
}
|
||||
|
||||
#pod =back
|
||||
#pod
|
||||
#pod =head1 EXAMPLE
|
||||
#pod
|
||||
#pod The main reason I wrote this module is so I could write wrappers
|
||||
#pod around functions and they wouldn't be aware they've been wrapped.
|
||||
#pod
|
||||
#pod use Sub::Uplevel;
|
||||
#pod
|
||||
#pod my $original_foo = \&foo;
|
||||
#pod
|
||||
#pod *foo = sub {
|
||||
#pod my @output = uplevel 1, $original_foo;
|
||||
#pod print "foo() returned: @output";
|
||||
#pod return @output;
|
||||
#pod };
|
||||
#pod
|
||||
#pod If this code frightens you B<you should not use this module.>
|
||||
#pod
|
||||
#pod
|
||||
#pod =head1 BUGS and CAVEATS
|
||||
#pod
|
||||
#pod Well, the bad news is uplevel() is about 5 times slower than a normal
|
||||
#pod function call. XS implementation anyone? It also slows down every invocation
|
||||
#pod of caller(), regardless of whether uplevel() is in effect.
|
||||
#pod
|
||||
#pod Sub::Uplevel overrides CORE::GLOBAL::caller temporarily for the scope of
|
||||
#pod each uplevel call. It does its best to work with any previously existing
|
||||
#pod CORE::GLOBAL::caller (both when Sub::Uplevel is first loaded and within
|
||||
#pod each uplevel call) such as from Contextual::Return or Hook::LexWrap.
|
||||
#pod
|
||||
#pod However, if you are routinely using multiple modules that override
|
||||
#pod CORE::GLOBAL::caller, you are probably asking for trouble.
|
||||
#pod
|
||||
#pod You B<should> load Sub::Uplevel as early as possible within your program. As
|
||||
#pod with all CORE::GLOBAL overloading, the overload will not affect modules that
|
||||
#pod have already been compiled prior to the overload. One module that often is
|
||||
#pod unavoidably loaded prior to Sub::Uplevel is Exporter. To forcibly recompile
|
||||
#pod Exporter (and Exporter::Heavy) after loading Sub::Uplevel, use it with the
|
||||
#pod ":aggressive" tag:
|
||||
#pod
|
||||
#pod use Sub::Uplevel qw/:aggressive/;
|
||||
#pod
|
||||
#pod The private function C<Sub::Uplevel::_force_reload()> may be passed a list of
|
||||
#pod additional modules to reload if ":aggressive" is not aggressive enough.
|
||||
#pod Reloading modules may break things, so only use this as a last resort.
|
||||
#pod
|
||||
#pod As of version 0.20, Sub::Uplevel requires Perl 5.6 or greater.
|
||||
#pod
|
||||
#pod =head1 HISTORY
|
||||
#pod
|
||||
#pod Those who do not learn from HISTORY are doomed to repeat it.
|
||||
#pod
|
||||
#pod The lesson here is simple: Don't sit next to a Tcl programmer at the
|
||||
#pod dinner table.
|
||||
#pod
|
||||
#pod =head1 THANKS
|
||||
#pod
|
||||
#pod Thanks to Brent Welch, Damian Conway and Robin Houston.
|
||||
#pod
|
||||
#pod See http://www.perl.com/perl/misc/Artistic.html
|
||||
#pod
|
||||
#pod =head1 SEE ALSO
|
||||
#pod
|
||||
#pod PadWalker (for the similar idea with lexicals), Hook::LexWrap,
|
||||
#pod Tcl's uplevel() at http://www.scriptics.com/man/tcl8.4/TclCmd/uplevel.htm
|
||||
#pod
|
||||
#pod =cut
|
||||
|
||||
1;
|
||||
|
||||
__END__
|
||||
|
||||
=pod
|
||||
|
||||
=encoding UTF-8
|
||||
|
||||
=head1 NAME
|
||||
|
||||
Sub::Uplevel - apparently run a function in a higher stack frame
|
||||
|
||||
=head1 VERSION
|
||||
|
||||
version 0.2800
|
||||
|
||||
=head1 SYNOPSIS
|
||||
|
||||
use Sub::Uplevel;
|
||||
|
||||
sub foo {
|
||||
print join " - ", caller;
|
||||
}
|
||||
|
||||
sub bar {
|
||||
uplevel 1, \&foo;
|
||||
}
|
||||
|
||||
#line 11
|
||||
bar(); # main - foo.plx - 11
|
||||
|
||||
=head1 DESCRIPTION
|
||||
|
||||
Like Tcl's uplevel() function, but not quite so dangerous. The idea
|
||||
is just to fool caller(). All the really naughty bits of Tcl's
|
||||
uplevel() are avoided.
|
||||
|
||||
B<THIS IS NOT THE SORT OF THING YOU WANT TO DO EVERYDAY>
|
||||
|
||||
=over 4
|
||||
|
||||
=item B<uplevel>
|
||||
|
||||
uplevel $num_frames, \&func, @args;
|
||||
|
||||
Makes the given function think it's being executed $num_frames higher
|
||||
than the current stack level. So when they use caller($frames) it
|
||||
will actually give caller($frames + $num_frames) for them.
|
||||
|
||||
C<uplevel(1, \&some_func, @_)> is effectively C<goto &some_func> but
|
||||
you don't immediately exit the current subroutine. So while you can't
|
||||
do this:
|
||||
|
||||
sub wrapper {
|
||||
print "Before\n";
|
||||
goto &some_func;
|
||||
print "After\n";
|
||||
}
|
||||
|
||||
you can do this:
|
||||
|
||||
sub wrapper {
|
||||
print "Before\n";
|
||||
my @out = uplevel 1, &some_func;
|
||||
print "After\n";
|
||||
return @out;
|
||||
}
|
||||
|
||||
C<uplevel> has the ability to issue a warning if C<$num_frames> is more than
|
||||
the current call stack depth, although this warning is disabled and compiled
|
||||
out by default as the check is relatively expensive.
|
||||
|
||||
To enable the check for debugging or testing, you should set the global
|
||||
C<$Sub::Uplevel::CHECK_FRAMES> to true before loading Sub::Uplevel for the
|
||||
first time as follows:
|
||||
|
||||
#!/usr/bin/perl
|
||||
|
||||
BEGIN {
|
||||
$Sub::Uplevel::CHECK_FRAMES = 1;
|
||||
}
|
||||
use Sub::Uplevel;
|
||||
|
||||
Setting or changing the global after the module has been loaded will have
|
||||
no effect.
|
||||
|
||||
=begin _private
|
||||
|
||||
So it has to work like this:
|
||||
|
||||
Call stack Actual uplevel 1
|
||||
CORE::GLOBAL::caller
|
||||
Carp::short_error_loc 0
|
||||
Carp::shortmess_heavy 1 0
|
||||
Carp::croak 2 1
|
||||
try_croak 3 2
|
||||
uplevel 4
|
||||
function_that_called_uplevel 5
|
||||
caller_we_want_to_see 6 3
|
||||
its_caller 7 4
|
||||
|
||||
So when caller(X) winds up below uplevel(), it only has to use
|
||||
CORE::caller(X+1) (to skip CORE::GLOBAL::caller). But when caller(X)
|
||||
winds up no or above uplevel(), it's CORE::caller(X+1+uplevel+1).
|
||||
|
||||
Which means I'm probably going to have to do something nasty like walk
|
||||
up the call stack on each caller() to see if I'm going to wind up
|
||||
before or after Sub::Uplevel::uplevel().
|
||||
|
||||
=end _private
|
||||
|
||||
=begin _dagolden
|
||||
|
||||
I found the description above a bit confusing. Instead, this is the logic
|
||||
that I found clearer when CORE::GLOBAL::caller is invoked and we have to
|
||||
walk up the call stack:
|
||||
|
||||
* if searching up to the requested height in the real call stack doesn't find
|
||||
a call to uplevel, then we can return the result at that height in the
|
||||
call stack
|
||||
|
||||
* if we find a call to uplevel, we need to keep searching upwards beyond the
|
||||
requested height at least by the amount of upleveling requested for that
|
||||
call to uplevel (from the Up_Frames stack set during the uplevel call)
|
||||
|
||||
* additionally, we need to hide the uplevel subroutine call, too, so we search
|
||||
upwards one more level for each call to uplevel
|
||||
|
||||
* when we've reached the top of the search, we want to return that frame
|
||||
in the call stack, i.e. the requested height plus any uplevel adjustments
|
||||
found during the search
|
||||
|
||||
=end _dagolden
|
||||
|
||||
=back
|
||||
|
||||
=head1 EXAMPLE
|
||||
|
||||
The main reason I wrote this module is so I could write wrappers
|
||||
around functions and they wouldn't be aware they've been wrapped.
|
||||
|
||||
use Sub::Uplevel;
|
||||
|
||||
my $original_foo = \&foo;
|
||||
|
||||
*foo = sub {
|
||||
my @output = uplevel 1, $original_foo;
|
||||
print "foo() returned: @output";
|
||||
return @output;
|
||||
};
|
||||
|
||||
If this code frightens you B<you should not use this module.>
|
||||
|
||||
=head1 BUGS and CAVEATS
|
||||
|
||||
Well, the bad news is uplevel() is about 5 times slower than a normal
|
||||
function call. XS implementation anyone? It also slows down every invocation
|
||||
of caller(), regardless of whether uplevel() is in effect.
|
||||
|
||||
Sub::Uplevel overrides CORE::GLOBAL::caller temporarily for the scope of
|
||||
each uplevel call. It does its best to work with any previously existing
|
||||
CORE::GLOBAL::caller (both when Sub::Uplevel is first loaded and within
|
||||
each uplevel call) such as from Contextual::Return or Hook::LexWrap.
|
||||
|
||||
However, if you are routinely using multiple modules that override
|
||||
CORE::GLOBAL::caller, you are probably asking for trouble.
|
||||
|
||||
You B<should> load Sub::Uplevel as early as possible within your program. As
|
||||
with all CORE::GLOBAL overloading, the overload will not affect modules that
|
||||
have already been compiled prior to the overload. One module that often is
|
||||
unavoidably loaded prior to Sub::Uplevel is Exporter. To forcibly recompile
|
||||
Exporter (and Exporter::Heavy) after loading Sub::Uplevel, use it with the
|
||||
":aggressive" tag:
|
||||
|
||||
use Sub::Uplevel qw/:aggressive/;
|
||||
|
||||
The private function C<Sub::Uplevel::_force_reload()> may be passed a list of
|
||||
additional modules to reload if ":aggressive" is not aggressive enough.
|
||||
Reloading modules may break things, so only use this as a last resort.
|
||||
|
||||
As of version 0.20, Sub::Uplevel requires Perl 5.6 or greater.
|
||||
|
||||
=head1 HISTORY
|
||||
|
||||
Those who do not learn from HISTORY are doomed to repeat it.
|
||||
|
||||
The lesson here is simple: Don't sit next to a Tcl programmer at the
|
||||
dinner table.
|
||||
|
||||
=head1 THANKS
|
||||
|
||||
Thanks to Brent Welch, Damian Conway and Robin Houston.
|
||||
|
||||
See http://www.perl.com/perl/misc/Artistic.html
|
||||
|
||||
=head1 SEE ALSO
|
||||
|
||||
PadWalker (for the similar idea with lexicals), Hook::LexWrap,
|
||||
Tcl's uplevel() at http://www.scriptics.com/man/tcl8.4/TclCmd/uplevel.htm
|
||||
|
||||
=for :stopwords cpan testmatrix url annocpan anno bugtracker rt cpants kwalitee diff irc mailto metadata placeholders metacpan
|
||||
|
||||
=head1 SUPPORT
|
||||
|
||||
=head2 Bugs / Feature Requests
|
||||
|
||||
Please report any bugs or feature requests through the issue tracker
|
||||
at L<https://github.com/Perl-Toolchain-Gang/Sub-Uplevel/issues>.
|
||||
You will be notified automatically of any progress on your issue.
|
||||
|
||||
=head2 Source Code
|
||||
|
||||
This is open source software. The code repository is available for
|
||||
public review and contribution under the terms of the license.
|
||||
|
||||
L<https://github.com/Perl-Toolchain-Gang/Sub-Uplevel>
|
||||
|
||||
git clone https://github.com/Perl-Toolchain-Gang/Sub-Uplevel.git
|
||||
|
||||
=head1 AUTHORS
|
||||
|
||||
=over 4
|
||||
|
||||
=item *
|
||||
|
||||
Michael Schwern <mschwern@cpan.org>
|
||||
|
||||
=item *
|
||||
|
||||
David Golden <dagolden@cpan.org>
|
||||
|
||||
=back
|
||||
|
||||
=head1 CONTRIBUTORS
|
||||
|
||||
=for stopwords Adam Kennedy Alexandr Ciornii David Golden Graham Ollis J. Nick Koston Michael Gray
|
||||
|
||||
=over 4
|
||||
|
||||
=item *
|
||||
|
||||
Adam Kennedy <adamk@cpan.org>
|
||||
|
||||
=item *
|
||||
|
||||
Alexandr Ciornii <alexchorny@gmail.com>
|
||||
|
||||
=item *
|
||||
|
||||
David Golden <xdg@xdg.me>
|
||||
|
||||
=item *
|
||||
|
||||
Graham Ollis <plicease@cpan.org>
|
||||
|
||||
=item *
|
||||
|
||||
J. Nick Koston <nick@cpanel.net>
|
||||
|
||||
=item *
|
||||
|
||||
Michael Gray <mg13@sanger.ac.uk>
|
||||
|
||||
=back
|
||||
|
||||
=head1 COPYRIGHT AND LICENSE
|
||||
|
||||
This software is copyright (c) 2017 by Michael Schwern and David Golden.
|
||||
|
||||
This is free software; you can redistribute it and/or modify it under
|
||||
the same terms as the Perl 5 programming language system itself.
|
||||
|
||||
=cut
|
|
@ -0,0 +1,26 @@
|
|||
severity = 5
|
||||
verbose = 8
|
||||
|
||||
[Variables::ProhibitPunctuationVars]
|
||||
allow = $@ $!
|
||||
|
||||
[TestingAndDebugging::ProhibitNoStrict]
|
||||
allow = refs
|
||||
|
||||
[Variables::ProhibitEvilVariables]
|
||||
variables = $DB::single
|
||||
|
||||
# Turn these off
|
||||
[-BuiltinFunctions::ProhibitStringyEval]
|
||||
[-ControlStructures::ProhibitPostfixControls]
|
||||
[-ControlStructures::ProhibitUnlessBlocks]
|
||||
[-Documentation::RequirePodSections]
|
||||
[-InputOutput::ProhibitInteractiveTest]
|
||||
[-References::ProhibitDoubleSigils]
|
||||
[-RegularExpressions::RequireExtendedFormatting]
|
||||
[-InputOutput::ProhibitTwoArgOpen]
|
||||
[-Modules::ProhibitEvilModules]
|
||||
|
||||
# Turn this on
|
||||
[Lax::ProhibitStringyEval::ExceptForRequire]
|
||||
|
|
@ -0,0 +1,56 @@
|
|||
do { my $x = {
|
||||
'configure' => {
|
||||
'requires' => {
|
||||
'ExtUtils::MakeMaker' => '6.17',
|
||||
'perl' => '5.006'
|
||||
}
|
||||
},
|
||||
'develop' => {
|
||||
'requires' => {
|
||||
'Dist::Zilla' => '5',
|
||||
'Dist::Zilla::Plugin::ReleaseStatus::FromVersion' => '0',
|
||||
'Dist::Zilla::PluginBundle::DAGOLDEN' => '0.073',
|
||||
'English' => '0',
|
||||
'File::Spec' => '0',
|
||||
'File::Temp' => '0',
|
||||
'IO::Handle' => '0',
|
||||
'IPC::Open3' => '0',
|
||||
'Pod::Coverage::TrustPod' => '0',
|
||||
'Pod::Wordlist' => '0',
|
||||
'Software::License::Perl_5' => '0',
|
||||
'Test::CPAN::Meta' => '0',
|
||||
'Test::MinimumVersion' => '0',
|
||||
'Test::More' => '0',
|
||||
'Test::Pod' => '1.41',
|
||||
'Test::Pod::Coverage' => '1.08',
|
||||
'Test::Portability::Files' => '0',
|
||||
'Test::Spelling' => '0.12',
|
||||
'Test::Version' => '1',
|
||||
'blib' => '1.01'
|
||||
}
|
||||
},
|
||||
'runtime' => {
|
||||
'requires' => {
|
||||
'Carp' => '0',
|
||||
'constant' => '0',
|
||||
'perl' => '5.006',
|
||||
'strict' => '0',
|
||||
'warnings' => '0'
|
||||
}
|
||||
},
|
||||
'test' => {
|
||||
'recommends' => {
|
||||
'CPAN::Meta' => '2.120900'
|
||||
},
|
||||
'requires' => {
|
||||
'Exporter' => '0',
|
||||
'ExtUtils::MakeMaker' => '0',
|
||||
'File::Spec' => '0',
|
||||
'Test::More' => '0',
|
||||
'lib' => '0',
|
||||
'perl' => '5.006'
|
||||
}
|
||||
}
|
||||
};
|
||||
$x;
|
||||
}
|
|
@ -0,0 +1,183 @@
|
|||
#!perl
|
||||
|
||||
use strict;
|
||||
use warnings;
|
||||
|
||||
# This test was generated by Dist::Zilla::Plugin::Test::ReportPrereqs 0.025
|
||||
|
||||
use Test::More tests => 1;
|
||||
|
||||
use ExtUtils::MakeMaker;
|
||||
use File::Spec;
|
||||
|
||||
# from $version::LAX
|
||||
my $lax_version_re =
|
||||
qr/(?: undef | (?: (?:[0-9]+) (?: \. | (?:\.[0-9]+) (?:_[0-9]+)? )?
|
||||
|
|
||||
(?:\.[0-9]+) (?:_[0-9]+)?
|
||||
) | (?:
|
||||
v (?:[0-9]+) (?: (?:\.[0-9]+)+ (?:_[0-9]+)? )?
|
||||
|
|
||||
(?:[0-9]+)? (?:\.[0-9]+){2,} (?:_[0-9]+)?
|
||||
)
|
||||
)/x;
|
||||
|
||||
# hide optional CPAN::Meta modules from prereq scanner
|
||||
# and check if they are available
|
||||
my $cpan_meta = "CPAN::Meta";
|
||||
my $cpan_meta_pre = "CPAN::Meta::Prereqs";
|
||||
my $HAS_CPAN_META = eval "require $cpan_meta; $cpan_meta->VERSION('2.120900')" && eval "require $cpan_meta_pre"; ## no critic
|
||||
|
||||
# Verify requirements?
|
||||
my $DO_VERIFY_PREREQS = 1;
|
||||
|
||||
sub _max {
|
||||
my $max = shift;
|
||||
$max = ( $_ > $max ) ? $_ : $max for @_;
|
||||
return $max;
|
||||
}
|
||||
|
||||
sub _merge_prereqs {
|
||||
my ($collector, $prereqs) = @_;
|
||||
|
||||
# CPAN::Meta::Prereqs object
|
||||
if (ref $collector eq $cpan_meta_pre) {
|
||||
return $collector->with_merged_prereqs(
|
||||
CPAN::Meta::Prereqs->new( $prereqs )
|
||||
);
|
||||
}
|
||||
|
||||
# Raw hashrefs
|
||||
for my $phase ( keys %$prereqs ) {
|
||||
for my $type ( keys %{ $prereqs->{$phase} } ) {
|
||||
for my $module ( keys %{ $prereqs->{$phase}{$type} } ) {
|
||||
$collector->{$phase}{$type}{$module} = $prereqs->{$phase}{$type}{$module};
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return $collector;
|
||||
}
|
||||
|
||||
my @include = qw(
|
||||
|
||||
);
|
||||
|
||||
my @exclude = qw(
|
||||
|
||||
);
|
||||
|
||||
# Add static prereqs to the included modules list
|
||||
my $static_prereqs = do 't/00-report-prereqs.dd';
|
||||
|
||||
# Merge all prereqs (either with ::Prereqs or a hashref)
|
||||
my $full_prereqs = _merge_prereqs(
|
||||
( $HAS_CPAN_META ? $cpan_meta_pre->new : {} ),
|
||||
$static_prereqs
|
||||
);
|
||||
|
||||
# Add dynamic prereqs to the included modules list (if we can)
|
||||
my ($source) = grep { -f } 'MYMETA.json', 'MYMETA.yml';
|
||||
if ( $source && $HAS_CPAN_META
|
||||
&& (my $meta = eval { CPAN::Meta->load_file($source) } )
|
||||
) {
|
||||
$full_prereqs = _merge_prereqs($full_prereqs, $meta->prereqs);
|
||||
}
|
||||
else {
|
||||
$source = 'static metadata';
|
||||
}
|
||||
|
||||
my @full_reports;
|
||||
my @dep_errors;
|
||||
my $req_hash = $HAS_CPAN_META ? $full_prereqs->as_string_hash : $full_prereqs;
|
||||
|
||||
# Add static includes into a fake section
|
||||
for my $mod (@include) {
|
||||
$req_hash->{other}{modules}{$mod} = 0;
|
||||
}
|
||||
|
||||
for my $phase ( qw(configure build test runtime develop other) ) {
|
||||
next unless $req_hash->{$phase};
|
||||
next if ($phase eq 'develop' and not $ENV{AUTHOR_TESTING});
|
||||
|
||||
for my $type ( qw(requires recommends suggests conflicts modules) ) {
|
||||
next unless $req_hash->{$phase}{$type};
|
||||
|
||||
my $title = ucfirst($phase).' '.ucfirst($type);
|
||||
my @reports = [qw/Module Want Have/];
|
||||
|
||||
for my $mod ( sort keys %{ $req_hash->{$phase}{$type} } ) {
|
||||
next if $mod eq 'perl';
|
||||
next if grep { $_ eq $mod } @exclude;
|
||||
|
||||
my $file = $mod;
|
||||
$file =~ s{::}{/}g;
|
||||
$file .= ".pm";
|
||||
my ($prefix) = grep { -e File::Spec->catfile($_, $file) } @INC;
|
||||
|
||||
my $want = $req_hash->{$phase}{$type}{$mod};
|
||||
$want = "undef" unless defined $want;
|
||||
$want = "any" if !$want && $want == 0;
|
||||
|
||||
my $req_string = $want eq 'any' ? 'any version required' : "version '$want' required";
|
||||
|
||||
if ($prefix) {
|
||||
my $have = MM->parse_version( File::Spec->catfile($prefix, $file) );
|
||||
$have = "undef" unless defined $have;
|
||||
push @reports, [$mod, $want, $have];
|
||||
|
||||
if ( $DO_VERIFY_PREREQS && $HAS_CPAN_META && $type eq 'requires' ) {
|
||||
if ( $have !~ /\A$lax_version_re\z/ ) {
|
||||
push @dep_errors, "$mod version '$have' cannot be parsed ($req_string)";
|
||||
}
|
||||
elsif ( ! $full_prereqs->requirements_for( $phase, $type )->accepts_module( $mod => $have ) ) {
|
||||
push @dep_errors, "$mod version '$have' is not in required range '$want'";
|
||||
}
|
||||
}
|
||||
}
|
||||
else {
|
||||
push @reports, [$mod, $want, "missing"];
|
||||
|
||||
if ( $DO_VERIFY_PREREQS && $type eq 'requires' ) {
|
||||
push @dep_errors, "$mod is not installed ($req_string)";
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if ( @reports ) {
|
||||
push @full_reports, "=== $title ===\n\n";
|
||||
|
||||
my $ml = _max( map { length $_->[0] } @reports );
|
||||
my $wl = _max( map { length $_->[1] } @reports );
|
||||
my $hl = _max( map { length $_->[2] } @reports );
|
||||
|
||||
if ($type eq 'modules') {
|
||||
splice @reports, 1, 0, ["-" x $ml, "", "-" x $hl];
|
||||
push @full_reports, map { sprintf(" %*s %*s\n", -$ml, $_->[0], $hl, $_->[2]) } @reports;
|
||||
}
|
||||
else {
|
||||
splice @reports, 1, 0, ["-" x $ml, "-" x $wl, "-" x $hl];
|
||||
push @full_reports, map { sprintf(" %*s %*s %*s\n", -$ml, $_->[0], $wl, $_->[1], $hl, $_->[2]) } @reports;
|
||||
}
|
||||
|
||||
push @full_reports, "\n";
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if ( @full_reports ) {
|
||||
diag "\nVersions for all modules listed in $source (including optional ones):\n\n", @full_reports;
|
||||
}
|
||||
|
||||
if ( @dep_errors ) {
|
||||
diag join("\n",
|
||||
"\n*** WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING ***\n",
|
||||
"The following REQUIRED prerequisites were not satisfied:\n",
|
||||
@dep_errors,
|
||||
"\n"
|
||||
);
|
||||
}
|
||||
|
||||
pass;
|
||||
|
||||
# vim: ts=4 sts=4 sw=4 et:
|
|
@ -0,0 +1,18 @@
|
|||
#!/usr/bin/perl
|
||||
|
||||
# Kirk: How we deal with death is at least as important as how we deal
|
||||
# with life, wouldn't you say?
|
||||
# Saavik: As I indicated, Admiral, that thought had not occurred to me.
|
||||
# Kirk: Well, now you have something new to think about. Carry on.
|
||||
|
||||
# XXX DG: Why is this test here? Seems pointless. Oh, well.
|
||||
|
||||
use strict;
|
||||
BEGIN { $^W = 1 }
|
||||
|
||||
use Test::More tests => 1;
|
||||
|
||||
#line 12
|
||||
eval { die };
|
||||
is( $@, "Died at $0 line 12.\n" );
|
||||
|
|
@ -0,0 +1,211 @@
|
|||
#!/usr/bin/perl
|
||||
|
||||
use strict;
|
||||
BEGIN { $^W = 1 }
|
||||
|
||||
use Test::More tests => 23;
|
||||
|
||||
BEGIN { use_ok('Sub::Uplevel'); }
|
||||
can_ok('Sub::Uplevel', 'uplevel');
|
||||
can_ok(__PACKAGE__, 'uplevel');
|
||||
|
||||
#line 11
|
||||
ok( !caller, "top-level caller() not screwed up" );
|
||||
|
||||
eval { die };
|
||||
is( $@, "Died at $0 line 13.\n", 'die() not screwed up' );
|
||||
|
||||
sub foo {
|
||||
join " - ", caller;
|
||||
}
|
||||
|
||||
sub bar {
|
||||
uplevel(1, \&foo);
|
||||
}
|
||||
|
||||
#line 25
|
||||
is( bar(), "main - $0 - 25", 'uplevel()' );
|
||||
|
||||
|
||||
# Sure, but does it fool die?
|
||||
sub try_die {
|
||||
die "You must die! I alone am best!";
|
||||
}
|
||||
|
||||
sub wrap_die {
|
||||
uplevel(1, \&try_die);
|
||||
}
|
||||
|
||||
# line 38
|
||||
eval { wrap_die() };
|
||||
is( $@, "You must die! I alone am best! at $0 line 30.\n", 'die() fooled' );
|
||||
|
||||
|
||||
# how about warn?
|
||||
sub try_warn {
|
||||
warn "HA! You don't fool me!";
|
||||
}
|
||||
|
||||
sub wrap_warn {
|
||||
uplevel(1, \&try_warn);
|
||||
}
|
||||
|
||||
|
||||
my $warning;
|
||||
{
|
||||
local $SIG{__WARN__} = sub { $warning = join '', @_ };
|
||||
#line 56
|
||||
wrap_warn();
|
||||
}
|
||||
is( $warning, "HA! You don't fool me! at $0 line 44.\n", 'warn() fooled' );
|
||||
|
||||
|
||||
# Carp?
|
||||
use Carp;
|
||||
sub try_croak {
|
||||
# line 64
|
||||
croak("Now we can fool croak!");
|
||||
}
|
||||
|
||||
sub wrap_croak {
|
||||
# line 68
|
||||
uplevel(shift, \&try_croak);
|
||||
}
|
||||
|
||||
|
||||
# depending on perl version, we could get 'require 0' or 'eval {...}'
|
||||
# in the stack. This test used to be 'require 0' for <= 5.006, but
|
||||
# it broke on 5.005_05 test release, so we'll just take either
|
||||
# line 72
|
||||
eval { wrap_croak(1) };
|
||||
my $croak_regex = quotemeta( <<"CARP" );
|
||||
Now we can fool croak! at $0 line 64
|
||||
main::wrap_croak(1) called at $0 line 72
|
||||
CARP
|
||||
$croak_regex =~ s/64/64\.?/; # Perl 5.15 series Carp adds period
|
||||
$croak_regex .= '\t(require 0|eval \{\.\.\.\})'
|
||||
. quotemeta( " called at $0 line 72" );
|
||||
like( $@, "/$croak_regex/", 'croak() fooled');
|
||||
|
||||
# Try to wrap higher -- this may have been a problem that was exposed on
|
||||
# Test Exception
|
||||
# line 75
|
||||
eval { wrap_croak(2) };
|
||||
$croak_regex = quotemeta( <<"CARP" );
|
||||
Now we can fool croak! at $0 line 64
|
||||
CARP
|
||||
$croak_regex =~ s/64/64\.?/; # Perl 5.15 series Carp adds period
|
||||
like( $@, "/$croak_regex/", 'croak() fooled');
|
||||
|
||||
#line 79
|
||||
ok( !caller, "caller() not screwed up" );
|
||||
|
||||
eval { die "Dying" };
|
||||
is( $@, "Dying at $0 line 81.\n", 'die() not screwed up' );
|
||||
|
||||
|
||||
|
||||
# how about carp?
|
||||
sub try_carp {
|
||||
# line 88
|
||||
carp "HA! Even carp is fooled!";
|
||||
}
|
||||
|
||||
sub wrap_carp {
|
||||
uplevel(1, \&try_carp);
|
||||
}
|
||||
|
||||
|
||||
$warning = '';
|
||||
{
|
||||
local $SIG{__WARN__} = sub { $warning = join '', @_ };
|
||||
#line 98
|
||||
wrap_carp();
|
||||
}
|
||||
my $carp_regex = quotemeta( <<"CARP" );
|
||||
HA! Even carp is fooled! at $0 line 88
|
||||
main::wrap_carp() called at $0 line 98
|
||||
CARP
|
||||
$carp_regex =~ s/88/88\.?/; # Perl 5.15 series Carp adds period
|
||||
like( $warning, "/$carp_regex/", 'carp() fooled' );
|
||||
|
||||
|
||||
use lib 't/lib';
|
||||
use Foo;
|
||||
can_ok( 'main', 'fooble' );
|
||||
|
||||
#line 114
|
||||
sub core_caller_check {
|
||||
return CORE::caller(0);
|
||||
}
|
||||
|
||||
sub caller_check {
|
||||
return caller(shift);
|
||||
}
|
||||
|
||||
is_deeply( [ ( caller_check(0), 0, 4 )[0 .. 3] ],
|
||||
['main', $0, 122, 'main::caller_check' ],
|
||||
'caller check' );
|
||||
|
||||
is( (() = caller_check(0)), (() = core_caller_check(0)) ,
|
||||
"caller() with args returns right number of values"
|
||||
);
|
||||
|
||||
sub core_caller_no_args {
|
||||
return CORE::caller();
|
||||
}
|
||||
|
||||
sub caller_no_args {
|
||||
return caller();
|
||||
}
|
||||
|
||||
is( (() = caller_no_args()), (() = core_caller_no_args()),
|
||||
"caller() with no args returns right number of values"
|
||||
);
|
||||
|
||||
sub deep_caller {
|
||||
return caller(1);
|
||||
}
|
||||
|
||||
sub check_deep_caller {
|
||||
deep_caller();
|
||||
}
|
||||
|
||||
#line 134
|
||||
is_deeply([(check_deep_caller)[0..2]], ['main', $0, 134], 'shallow caller' );
|
||||
|
||||
sub deeper { deep_caller() } # caller 0
|
||||
sub still_deeper { deeper() } # caller 1 -- should give this line, 137
|
||||
sub ever_deeper { still_deeper() } # caller 2
|
||||
|
||||
is_deeply([(ever_deeper)[0..2]], ['main', $0, 137], 'deep caller()' );
|
||||
|
||||
# This uplevel() should not effect deep_caller's caller(1).
|
||||
sub yet_deeper { uplevel( 1, \&ever_deeper) }
|
||||
is_deeply([(yet_deeper)[0..2]], ['main', $0, 137], 'deep caller() + uplevel' );
|
||||
|
||||
sub target { caller }
|
||||
sub yarrow { uplevel( 1, \&target ) }
|
||||
sub hock { uplevel( 1, \&yarrow ) }
|
||||
|
||||
is_deeply([(hock)], ['main', $0, 150], 'nested uplevel()s' );
|
||||
|
||||
# Deep caller inside uplevel
|
||||
package Delegator;
|
||||
# line 159
|
||||
sub delegate { main::caller_check(shift) }
|
||||
|
||||
package Wrapper;
|
||||
use Sub::Uplevel;
|
||||
sub wrap { uplevel( 1, \&Delegator::delegate, @_ ) }
|
||||
|
||||
package main;
|
||||
|
||||
is( (Wrapper::wrap(0))[0], 'Delegator',
|
||||
'deep caller check of parent sees real calling package'
|
||||
);
|
||||
|
||||
is( (Wrapper::wrap(1))[0], 'main',
|
||||
'deep caller check of grandparent sees package above uplevel'
|
||||
);
|
||||
|
|
@ -0,0 +1,81 @@
|
|||
#!/usr/bin/perl
|
||||
|
||||
use strict;
|
||||
BEGIN { $^W = 1 }
|
||||
|
||||
use Test::More;
|
||||
|
||||
use Sub::Uplevel;
|
||||
|
||||
package Wrap;
|
||||
use Sub::Uplevel;
|
||||
|
||||
sub wrap {
|
||||
my ($n, $f, $depth, $up, @case) = @_;
|
||||
|
||||
if ($n > 1) {
|
||||
$n--;
|
||||
return wrap( $n, $f, $depth, $up, @case );
|
||||
}
|
||||
else {
|
||||
return uplevel( $up , $f, $depth, $up, @case );
|
||||
}
|
||||
}
|
||||
|
||||
package Call;
|
||||
|
||||
sub recurse_call_check {
|
||||
my ($depth, $up, @case) = @_;
|
||||
|
||||
if ( $depth ) {
|
||||
$depth--;
|
||||
my @result;
|
||||
push @result, recurse_call_check($depth, $up, @case, 'Call' );
|
||||
for my $n ( 1 .. $up ) {
|
||||
push @result, Wrap::wrap( $n, \&recurse_call_check,
|
||||
$depth, $n, @case,
|
||||
$n == 1 ? "Wrap(Call)" : "Wrap(Call) x $n" ),
|
||||
;
|
||||
}
|
||||
return @result;
|
||||
}
|
||||
else {
|
||||
my (@uplevel_callstack, @real_callstack);
|
||||
my $i = 0;
|
||||
while ( defined( my $caller = caller($i++) ) ) {
|
||||
push @uplevel_callstack, $caller;
|
||||
}
|
||||
$i = 0;
|
||||
while ( defined( my $caller = CORE::caller($i++) ) ) {
|
||||
push @real_callstack, $caller;
|
||||
}
|
||||
return [
|
||||
join( q{, }, @case ),
|
||||
join( q{, }, reverse @uplevel_callstack ),
|
||||
join( q{, }, reverse @real_callstack ),
|
||||
];
|
||||
}
|
||||
}
|
||||
|
||||
package main;
|
||||
|
||||
my $depth = 4;
|
||||
my $up = 3;
|
||||
my $cases = 104;
|
||||
|
||||
plan tests => $cases;
|
||||
|
||||
my @results = Call::recurse_call_check( $depth, $up, 'Call' );
|
||||
|
||||
is( scalar @results, $cases,
|
||||
"Right number of cases"
|
||||
);
|
||||
|
||||
my $expected = shift @results;
|
||||
|
||||
for my $got ( @results ) {
|
||||
is( $got->[1], $expected->[1],
|
||||
"Case: $got->[0]"
|
||||
) or diag( "Real callers: $got->[2]" );
|
||||
}
|
||||
|
|
@ -0,0 +1,83 @@
|
|||
#!/usr/bin/perl
|
||||
|
||||
use strict;
|
||||
BEGIN { $^W = 1 }
|
||||
|
||||
use Test::More tests => 7;
|
||||
|
||||
# Goal of these tests: confirm that Sub::Uplevel will honor (use) a
|
||||
# CORE::GLOBAL::caller that occurs after Sub::Uplevel is loaded
|
||||
|
||||
#--------------------------------------------------------------------------#
|
||||
# define a custom caller function that reverses the package name
|
||||
#--------------------------------------------------------------------------#
|
||||
|
||||
sub _reverse_caller(;$) {
|
||||
my $height = $_[0];
|
||||
my @caller = CORE::caller(++$height);
|
||||
$caller[0] = defined $caller[0] ? reverse $caller[0] : undef;
|
||||
if( wantarray and !@_ ) {
|
||||
return @caller[0..2];
|
||||
}
|
||||
elsif (wantarray) {
|
||||
return @caller;
|
||||
}
|
||||
else {
|
||||
return $caller[0];
|
||||
}
|
||||
}
|
||||
|
||||
#--------------------------------------------------------------------------#
|
||||
# load Sub::Uplevel then redefine CORE::GLOBAL::caller
|
||||
#--------------------------------------------------------------------------#
|
||||
|
||||
BEGIN {
|
||||
ok( ! defined *CORE::GLOBAL::caller{CODE},
|
||||
"no global override yet"
|
||||
);
|
||||
|
||||
use_ok('Sub::Uplevel');
|
||||
|
||||
is( *CORE::GLOBAL::caller{CODE}, \&Sub::Uplevel::_normal_caller,
|
||||
"Sub::Uplevel's normal caller override in place"
|
||||
);
|
||||
|
||||
# old style no warnings 'redefine'
|
||||
my $old_W = $^W;
|
||||
$^W = 0;
|
||||
|
||||
*CORE::GLOBAL::caller = \&_reverse_caller;
|
||||
$^W = $old_W
|
||||
|
||||
}
|
||||
|
||||
is( *CORE::GLOBAL::caller{CODE}, \&_reverse_caller,
|
||||
"added new, custom caller override"
|
||||
);
|
||||
|
||||
#--------------------------------------------------------------------------#
|
||||
# define subs *after* caller has been redefined in BEGIN
|
||||
#--------------------------------------------------------------------------#
|
||||
|
||||
sub test_caller { return scalar caller }
|
||||
|
||||
sub uplevel_caller { return uplevel 1, \&test_caller }
|
||||
|
||||
sub test_caller_w_uplevel { return uplevel_caller }
|
||||
|
||||
#--------------------------------------------------------------------------#
|
||||
# Test for reversed package name both inside and outside an uplevel call
|
||||
#--------------------------------------------------------------------------#
|
||||
|
||||
is( scalar caller(), undef,
|
||||
"caller from main package is undef"
|
||||
);
|
||||
|
||||
is( test_caller(), reverse("main"),
|
||||
"caller from subroutine calls custom routine"
|
||||
);
|
||||
|
||||
is( test_caller_w_uplevel(), reverse("main"),
|
||||
"caller from uplevel subroutine calls custom routine"
|
||||
);
|
||||
|
|
@ -0,0 +1,94 @@
|
|||
#!/usr/bin/perl
|
||||
|
||||
use strict;
|
||||
BEGIN { $^W = 1 }
|
||||
|
||||
use Test::More tests => 10;
|
||||
|
||||
# Goal of these tests: confirm that Sub::Uplevel will honor (use) a
|
||||
# CORE::GLOBAL::caller override that occurs prior to Sub::Uplevel loading
|
||||
|
||||
#--------------------------------------------------------------------------#
|
||||
# define a custom caller function that increments a counter
|
||||
#--------------------------------------------------------------------------#
|
||||
|
||||
my $caller_counter = 0;
|
||||
sub _count_caller(;$) {
|
||||
$caller_counter++;
|
||||
my $height = $_[0];
|
||||
my @caller = CORE::caller(++$height);
|
||||
if( wantarray and !@_ ) {
|
||||
return @caller[0..2];
|
||||
}
|
||||
elsif (wantarray) {
|
||||
return @caller;
|
||||
}
|
||||
else {
|
||||
return $caller[0];
|
||||
}
|
||||
}
|
||||
|
||||
#--------------------------------------------------------------------------#
|
||||
# redefine CORE::GLOBAL::caller then load Sub::Uplevel
|
||||
#--------------------------------------------------------------------------#
|
||||
|
||||
BEGIN {
|
||||
ok( ! defined *CORE::GLOBAL::caller{CODE},
|
||||
"no global override yet"
|
||||
);
|
||||
|
||||
{
|
||||
# old style no warnings 'redefine'
|
||||
my $old_W = $^W;
|
||||
$^W = 0;
|
||||
*CORE::GLOBAL::caller = \&_count_caller;
|
||||
$^W = $old_W;
|
||||
}
|
||||
|
||||
is( *CORE::GLOBAL::caller{CODE}, \&_count_caller,
|
||||
"added custom caller override"
|
||||
);
|
||||
|
||||
use_ok('Sub::Uplevel');
|
||||
|
||||
is( *CORE::GLOBAL::caller{CODE}, \&_count_caller,
|
||||
"custom caller override still in place"
|
||||
);
|
||||
|
||||
|
||||
}
|
||||
|
||||
#--------------------------------------------------------------------------#
|
||||
# define subs *after* caller has been redefined in BEGIN
|
||||
#--------------------------------------------------------------------------#
|
||||
|
||||
sub test_caller { return scalar caller }
|
||||
|
||||
sub uplevel_caller { return uplevel 1, \&test_caller }
|
||||
|
||||
sub test_caller_w_uplevel { return uplevel_caller }
|
||||
|
||||
#--------------------------------------------------------------------------#
|
||||
# Test for reversed package name both inside and outside an uplevel call
|
||||
#--------------------------------------------------------------------------#
|
||||
|
||||
my $old_caller_counter;
|
||||
|
||||
$old_caller_counter = $caller_counter;
|
||||
is( scalar caller(), undef,
|
||||
"caller from main package is undef"
|
||||
);
|
||||
ok( $caller_counter > $old_caller_counter, "custom caller() was used" );
|
||||
|
||||
$old_caller_counter = $caller_counter;
|
||||
is( test_caller(), "main",
|
||||
"caller from subroutine is main"
|
||||
);
|
||||
ok( $caller_counter > $old_caller_counter, "custom caller() was used" );
|
||||
|
||||
$old_caller_counter = $caller_counter;
|
||||
is( test_caller_w_uplevel(), "main",
|
||||
"caller from uplevel subroutine is main"
|
||||
);
|
||||
ok( $caller_counter > $old_caller_counter, "custom caller() was used" );
|
||||
|
|
@ -0,0 +1,34 @@
|
|||
#!/usr/bin/perl
|
||||
|
||||
use strict;
|
||||
BEGIN { $^W = 1 }
|
||||
|
||||
use Test::More tests => 3;
|
||||
|
||||
BEGIN { use_ok('Sub::Uplevel'); }
|
||||
|
||||
sub get_caller_args {
|
||||
package DB;
|
||||
my @x = caller(1);
|
||||
return @DB::args;
|
||||
}
|
||||
|
||||
sub addition {
|
||||
my $x;
|
||||
$x += $_ for @_;
|
||||
return $x;
|
||||
}
|
||||
|
||||
sub wrap_addition {
|
||||
my @args = get_caller_args();
|
||||
my $sum = uplevel 1, \&addition, @_;
|
||||
return ($sum, @args);
|
||||
}
|
||||
|
||||
my ($sum, @args) = wrap_addition(1, 2, 3);
|
||||
|
||||
is($sum, 6, "wrapper returned value correct");
|
||||
is_deeply( \@args, [1, 2, 3], "wrapper returned args correct" );
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
#!/usr/bin/perl
|
||||
|
||||
use strict;
|
||||
BEGIN { $^W = 1 }
|
||||
|
||||
use Test::More tests => 5;
|
||||
|
||||
BEGIN {
|
||||
$Sub::Uplevel::CHECK_FRAMES = 1;
|
||||
use_ok('Sub::Uplevel');
|
||||
}
|
||||
|
||||
sub show_caller {
|
||||
return scalar caller;
|
||||
}
|
||||
|
||||
sub wrap_show_caller {
|
||||
my $uplevel = shift;
|
||||
return uplevel $uplevel, \&show_caller;
|
||||
}
|
||||
|
||||
my $warning = '';
|
||||
local $SIG{__WARN__} = sub { $warning = shift };
|
||||
|
||||
my $caller = wrap_show_caller(1);
|
||||
is($caller, 'main', "wrapper returned correct caller");
|
||||
is( $warning, '', "don't warn if ordinary uplevel" );
|
||||
|
||||
$warning = '';
|
||||
$caller = wrap_show_caller(2);
|
||||
my $file = __FILE__;
|
||||
is($caller, undef, "wrapper returned correct caller");
|
||||
like( $warning, qr/uplevel 2 is more than the caller stack/, "warn if too much uplevel" );
|
|
@ -0,0 +1,19 @@
|
|||
#!/usr/bin/perl
|
||||
|
||||
use strict;
|
||||
BEGIN { $^W = 1 }
|
||||
|
||||
use Test::More;
|
||||
|
||||
plan tests => 1;
|
||||
|
||||
# Goal of these tests: confirm that Sub::Uplevel will work with Exporter's
|
||||
# import() function
|
||||
|
||||
package main;
|
||||
use lib 't/lib';
|
||||
require MyImporter;
|
||||
require Bar;
|
||||
MyImporter::import_for_me('Bar','func3');
|
||||
can_ok('main','func3');
|
||||
|
|
@ -0,0 +1,34 @@
|
|||
#!/usr/bin/perl
|
||||
|
||||
use strict;
|
||||
BEGIN { $^W = 1 }
|
||||
|
||||
use Test::More;
|
||||
|
||||
use Sub::Uplevel;
|
||||
|
||||
plan tests => 3;
|
||||
|
||||
sub get_caller {
|
||||
return caller(shift);
|
||||
}
|
||||
|
||||
sub wrapper {
|
||||
my $height = shift;
|
||||
return uplevel 1, \&get_caller, $height;
|
||||
}
|
||||
|
||||
{
|
||||
my @caller = wrapper(0);
|
||||
ok(scalar @caller, "caller(N) in stack returns list");
|
||||
}
|
||||
|
||||
{
|
||||
my @caller = wrapper(1);
|
||||
is(scalar @caller, 0, "caller(N) out of stack returns empty list");
|
||||
}
|
||||
|
||||
{
|
||||
my @caller = caller;
|
||||
is(scalar @caller, 0, "caller from main returns empty list");
|
||||
}
|
|
@ -0,0 +1,8 @@
|
|||
package Bar;
|
||||
use warnings;
|
||||
use strict;
|
||||
require Exporter;
|
||||
our @ISA = qw(Exporter);
|
||||
our @EXPORT_OK = qw( func3 );
|
||||
sub func3 { 3 }
|
||||
1;
|
|
@ -0,0 +1,8 @@
|
|||
package Foo;
|
||||
|
||||
# Hook::LexWrap does this, Sub::Uplevel appears to interfere.
|
||||
sub import { *{caller()."::fooble"} = \&fooble }
|
||||
|
||||
sub fooble { 42 }
|
||||
|
||||
1;
|
|
@ -0,0 +1,15 @@
|
|||
package MyImporter;
|
||||
use warnings;
|
||||
use strict;
|
||||
use Sub::Uplevel qw/:aggressive/;
|
||||
sub import_for_me {
|
||||
my ($pkg, @p) = @_;
|
||||
my $level = 1;
|
||||
my $import = $pkg->can('import');
|
||||
if ($import) {
|
||||
uplevel $level, $import, ($pkg, @p);
|
||||
} else {
|
||||
warn "no import in $pkg\n";
|
||||
}
|
||||
}
|
||||
1;
|
|
@ -0,0 +1,63 @@
|
|||
use 5.006;
|
||||
use strict;
|
||||
use warnings;
|
||||
|
||||
# this test was generated with Dist::Zilla::Plugin::Test::Compile 2.056
|
||||
|
||||
use Test::More;
|
||||
|
||||
plan tests => 2;
|
||||
|
||||
my @module_files = (
|
||||
'Sub/Uplevel.pm'
|
||||
);
|
||||
|
||||
|
||||
|
||||
# fake home for cpan-testers
|
||||
use File::Temp;
|
||||
local $ENV{HOME} = File::Temp::tempdir( CLEANUP => 1 );
|
||||
|
||||
|
||||
my @switches = (
|
||||
-d 'blib' ? '-Mblib' : '-Ilib',
|
||||
);
|
||||
|
||||
use File::Spec;
|
||||
use IPC::Open3;
|
||||
use IO::Handle;
|
||||
|
||||
open my $stdin, '<', File::Spec->devnull or die "can't open devnull: $!";
|
||||
|
||||
my @warnings;
|
||||
for my $lib (@module_files)
|
||||
{
|
||||
# see L<perlfaq8/How can I capture STDERR from an external command?>
|
||||
my $stderr = IO::Handle->new;
|
||||
|
||||
diag('Running: ', join(', ', map { my $str = $_; $str =~ s/'/\\'/g; q{'} . $str . q{'} }
|
||||
$^X, @switches, '-e', "require q[$lib]"))
|
||||
if $ENV{PERL_COMPILE_TEST_DEBUG};
|
||||
|
||||
my $pid = open3($stdin, '>&STDERR', $stderr, $^X, @switches, '-e', "require q[$lib]");
|
||||
binmode $stderr, ':crlf' if $^O eq 'MSWin32';
|
||||
my @_warnings = <$stderr>;
|
||||
waitpid($pid, 0);
|
||||
is($?, 0, "$lib loaded ok");
|
||||
|
||||
shift @_warnings if @_warnings and $_warnings[0] =~ /^Using .*\bblib/
|
||||
and not eval { require blib; blib->VERSION('1.01') };
|
||||
|
||||
if (@_warnings)
|
||||
{
|
||||
warn @_warnings;
|
||||
push @warnings, @_warnings;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
is(scalar(@warnings), 0, 'no warnings found')
|
||||
or diag 'got warnings: ', ( Test::More->can('explain') ? Test::More::explain(\@warnings) : join("\n", '', @warnings) );
|
||||
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
#!perl
|
||||
|
||||
use strict;
|
||||
use warnings;
|
||||
|
||||
use Test::More;
|
||||
use English qw(-no_match_vars);
|
||||
|
||||
eval "use Test::Perl::Critic";
|
||||
plan skip_all => 'Test::Perl::Critic required to criticise code' if $@;
|
||||
Test::Perl::Critic->import( -profile => "perlcritic.rc" ) if -e "perlcritic.rc";
|
||||
all_critic_ok();
|
|
@ -0,0 +1,7 @@
|
|||
#!perl
|
||||
# This file was automatically generated by Dist::Zilla::Plugin::PodCoverageTests.
|
||||
|
||||
use Test::Pod::Coverage 1.08;
|
||||
use Pod::Coverage::TrustPod;
|
||||
|
||||
all_pod_coverage_ok({ coverage_class => 'Pod::Coverage::TrustPod' });
|
|
@ -0,0 +1,41 @@
|
|||
use strict;
|
||||
use warnings;
|
||||
use Test::More;
|
||||
|
||||
# generated by Dist::Zilla::Plugin::Test::PodSpelling 2.007004
|
||||
use Test::Spelling 0.12;
|
||||
use Pod::Wordlist;
|
||||
|
||||
|
||||
add_stopwords(<DATA>);
|
||||
all_pod_files_spelling_ok( qw( bin lib ) );
|
||||
__DATA__
|
||||
Adam
|
||||
Alexandr
|
||||
Ciornii
|
||||
David
|
||||
Golden
|
||||
Graham
|
||||
Gray
|
||||
Kennedy
|
||||
Koston
|
||||
Michael
|
||||
Nick
|
||||
Ollis
|
||||
PadWalker
|
||||
Schwern
|
||||
Sub
|
||||
Tcl's
|
||||
Uplevel
|
||||
Welch
|
||||
adamk
|
||||
alexchorny
|
||||
and
|
||||
dagolden
|
||||
lib
|
||||
mg13
|
||||
mschwern
|
||||
nick
|
||||
plicease
|
||||
uplevel
|
||||
xdg
|
|
@ -0,0 +1,7 @@
|
|||
#!perl
|
||||
# This file was automatically generated by Dist::Zilla::Plugin::PodSyntaxTests.
|
||||
use strict; use warnings;
|
||||
use Test::More;
|
||||
use Test::Pod 1.41;
|
||||
|
||||
all_pod_files_ok();
|
|
@ -0,0 +1,10 @@
|
|||
use strict;
|
||||
use warnings;
|
||||
|
||||
use Test::More;
|
||||
|
||||
eval 'use Test::Portability::Files';
|
||||
plan skip_all => 'Test::Portability::Files required for testing portability'
|
||||
if $@;
|
||||
options(test_one_dot => 0);
|
||||
run_tests();
|
|
@ -0,0 +1,23 @@
|
|||
use strict;
|
||||
use warnings;
|
||||
use Test::More;
|
||||
|
||||
# generated by Dist::Zilla::Plugin::Test::Version 1.09
|
||||
use Test::Version;
|
||||
|
||||
my @imports = qw( version_all_ok );
|
||||
|
||||
my $params = {
|
||||
is_strict => 0,
|
||||
has_version => 1,
|
||||
multiple => 0,
|
||||
|
||||
};
|
||||
|
||||
push @imports, $params
|
||||
if version->parse( $Test::Version::VERSION ) >= version->parse('1.002');
|
||||
|
||||
Test::Version->import(@imports);
|
||||
|
||||
version_all_ok;
|
||||
done_testing;
|
|
@ -0,0 +1,6 @@
|
|||
#!perl
|
||||
# This file was automatically generated by Dist::Zilla::Plugin::MetaTests.
|
||||
|
||||
use Test::CPAN::Meta;
|
||||
|
||||
meta_yaml_ok();
|
|
@ -0,0 +1,8 @@
|
|||
#!perl
|
||||
|
||||
use Test::More;
|
||||
|
||||
eval "use Test::MinimumVersion";
|
||||
plan skip_all => "Test::MinimumVersion required for testing minimum versions"
|
||||
if $@;
|
||||
all_minimum_version_ok( qq{5.010} );
|
Loading…
Reference in New Issue