Devel-OverloadInfo-0.002HEADDevel-OverloadInfo-0.002master

12 files changed, 949 insertions, 0 deletions

diff --git a/Changes b/Changes
new file mode 100644
index 0000000..e300406
--- /dev/null
+++ b/Changes
@@ -0,0 +1,7 @@
+Revision history for Devel-OverloadInfo
+
+0.002     2014-03-26 12:02:38+00:00 Europe/London
+  - Specify minimum required versions of Package::Stash and Exporter
+
+0.001     2014-03-23 18:41:17+00:00 Europe/London
+  - Initial release
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..8637b62
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,379 @@
+This software is copyright (c) 2014 by Dagfinn Ilmari Mannsåker.
+
+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) 2014 by Dagfinn Ilmari Mannsåker.
+
+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, Suite 500, Boston, MA  02110-1335  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
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+
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+These restrictions translate to certain responsibilities for you if you
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+
+  For example, if you distribute copies of a such a program, whether
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+source code.  And you must tell them their rights.
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+  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
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+
+  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
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+
+    c) If the modified program normally reads commands interactively when
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+    that there is no warranty (or else, saying that you provide a
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+    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
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+  3. You may copy and distribute the Program (or a portion or derivative of
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+    a) accompany it with the complete corresponding machine-readable
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+Source code for a work means the preferred form of the work for making
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+
+  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
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+License will not have their licenses terminated so long as such parties
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+  5. By copying, distributing or modifying the Program (or any work based
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+  6. Each time you redistribute the Program (or any work based on the
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+Foundation.
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+  8. If you wish to incorporate parts of the Program into other free
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+
+                            NO WARRANTY
+
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+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
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+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
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+
+  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,
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+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) 2014 by Dagfinn Ilmari Mannsåker.
+
+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
+
diff --git a/MANIFEST b/MANIFEST
new file mode 100644
index 0000000..49c34ad
--- /dev/null
+++ b/MANIFEST
@@ -0,0 +1,13 @@
+# This file was automatically generated by Dist::Zilla::Plugin::Manifest v5.014.
+Changes
+LICENSE
+MANIFEST
+META.json
+META.yml
+Makefile.PL
+README
+dist.ini
+lib/Devel/OverloadInfo.pm
+t/author-pod-spell.t
+t/basic.t
+t/release-pod-syntax.t
diff --git a/META.json b/META.json
new file mode 100644
index 0000000..b61eaaa
--- /dev/null
+++ b/META.json
@@ -0,0 +1,61 @@
+{
+   "abstract" : "introspect overloaded operators",
+   "author" : [
+      "Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>"
+   ],
+   "dynamic_config" : 0,
+   "generated_by" : "Dist::Zilla version 5.014, CPAN::Meta::Converter version 2.133380",
+   "license" : [
+      "perl_5"
+   ],
+   "meta-spec" : {
+      "url" : "http://search.cpan.org/perldoc?CPAN::Meta::Spec",
+      "version" : "2"
+   },
+   "name" : "Devel-OverloadInfo",
+   "prereqs" : {
+      "configure" : {
+         "requires" : {
+            "ExtUtils::MakeMaker" : "6.30"
+         }
+      },
+      "develop" : {
+         "requires" : {
+            "Test::Pod" : "1.41"
+         }
+      },
+      "runtime" : {
+         "requires" : {
+            "Exporter" : "5.57",
+            "MRO::Compat" : "0",
+            "Package::Stash" : "0.14",
+            "Scalar::Util" : "0",
+            "Sub::Identify" : "0",
+            "overload" : "0",
+            "perl" : "5.006",
+            "strict" : "0",
+            "warnings" : "0"
+         }
+      },
+      "test" : {
+         "requires" : {
+            "Test::More" : "0.88",
+            "parent" : "0"
+         }
+      }
+   },
+   "release_status" : "stable",
+   "resources" : {
+      "bugtracker" : {
+         "mailto" : "bug-devel-overloadinfo at rt.cpan.org",
+         "web" : "http://rt.cpan.org/Public/Dist/Display.html?Name=Devel-OverloadInfo"
+      },
+      "repository" : {
+         "type" : "git",
+         "url" : "git://github.com/ilmari/Devel-OverloadInfo.git",
+         "web" : "https://github.com/ilmari/Devel-OverloadInfo"
+      }
+   },
+   "version" : "0.002"
+}
+
diff --git a/META.yml b/META.yml
new file mode 100644
index 0000000..8b668e3
--- /dev/null
+++ b/META.yml
@@ -0,0 +1,30 @@
+---
+abstract: 'introspect overloaded operators'
+author:
+  - 'Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>'
+build_requires:
+  Test::More: 0.88
+  parent: 0
+configure_requires:
+  ExtUtils::MakeMaker: 6.30
+dynamic_config: 0
+generated_by: 'Dist::Zilla version 5.014, CPAN::Meta::Converter version 2.133380'
+license: perl
+meta-spec:
+  url: http://module-build.sourceforge.net/META-spec-v1.4.html
+  version: 1.4
+name: Devel-OverloadInfo
+requires:
+  Exporter: 5.57
+  MRO::Compat: 0
+  Package::Stash: 0.14
+  Scalar::Util: 0
+  Sub::Identify: 0
+  overload: 0
+  perl: 5.006
+  strict: 0
+  warnings: 0
+resources:
+  bugtracker: http://rt.cpan.org/Public/Dist/Display.html?Name=Devel-OverloadInfo
+  repository: git://github.com/ilmari/Devel-OverloadInfo.git
+version: 0.002
diff --git a/Makefile.PL b/Makefile.PL
new file mode 100644
index 0000000..68b87f0
--- /dev/null
+++ b/Makefile.PL
@@ -0,0 +1,70 @@
+
+# This file was automatically generated by Dist::Zilla::Plugin::MakeMaker v5.014.
+use strict;
+use warnings;
+
+use 5.006;
+
+use ExtUtils::MakeMaker 6.30;
+
+
+
+my %WriteMakefileArgs = (
+  "ABSTRACT" => "introspect overloaded operators",
+  "AUTHOR" => "Dagfinn Ilmari Manns\x{e5}ker <ilmari\@ilmari.org>",
+  "BUILD_REQUIRES" => {},
+  "CONFIGURE_REQUIRES" => {
+    "ExtUtils::MakeMaker" => "6.30"
+  },
+  "DISTNAME" => "Devel-OverloadInfo",
+  "EXE_FILES" => [],
+  "LICENSE" => "perl",
+  "NAME" => "Devel::OverloadInfo",
+  "PREREQ_PM" => {
+    "Exporter" => "5.57",
+    "MRO::Compat" => 0,
+    "Package::Stash" => "0.14",
+    "Scalar::Util" => 0,
+    "Sub::Identify" => 0,
+    "overload" => 0,
+    "strict" => 0,
+    "warnings" => 0
+  },
+  "TEST_REQUIRES" => {
+    "Test::More" => "0.88",
+    "parent" => 0
+  },
+  "VERSION" => "0.002",
+  "test" => {
+    "TESTS" => "t/*.t"
+  }
+);
+
+
+my %FallbackPrereqs = (
+  "Exporter" => "5.57",
+  "MRO::Compat" => 0,
+  "Package::Stash" => "0.14",
+  "Scalar::Util" => 0,
+  "Sub::Identify" => 0,
+  "Test::More" => "0.88",
+  "overload" => 0,
+  "parent" => 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 $WriteMakefileArgs{CONFIGURE_REQUIRES}
+  unless eval { ExtUtils::MakeMaker->VERSION(6.52) };
+
+WriteMakefile(%WriteMakefileArgs);
+
+
+
diff --git a/README b/README
new file mode 100644
index 0000000..2f6828f
--- /dev/null
+++ b/README
@@ -0,0 +1,15 @@
+
+
+This archive contains the distribution Devel-OverloadInfo,
+version 0.002:
+
+  introspect overloaded operators
+
+This software is copyright (c) 2014 by Dagfinn Ilmari Mannsåker.
+
+This is free software; you can redistribute it and/or modify it under
+the same terms as the Perl 5 programming language system itself.
+
+
+This README file was generated by Dist::Zilla::Plugin::Readme v5.014.
+
diff --git a/dist.ini b/dist.ini
new file mode 100644
index 0000000..f657d3e
--- /dev/null
+++ b/dist.ini
@@ -0,0 +1,38 @@
+name    = Devel-OverloadInfo
+author  = Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
+license = Perl_5
+copyright_holder = Dagfinn Ilmari Mannsåker
+copyright_year   = 2014
+
+[Git::GatherDir]
+
+[@Filter]
+-bundle = @Basic
+-remove = GatherDir
+
+[PkgVersion]
+[AutoPrereqs]
+skip = \A(?:Base|Child)Class\z
+
+[MetaJSON]
+[MetaResources]
+[Repository]
+[Bugtracker]
+[MinimumPerl]
+[NextRelease]
+[Git::NextVersion]
+
+[PodWeaver]
+:version = 4.004
+replacer = replace_with_comment
+post_code_replacer = replace_with_nothing
+
+[PodSyntaxTests]
+[Test::PodSpelling]
+
+[@Git]
+allow_dirty =
+
+; Commit and push updated Changes from NextRelease
+[Git::Commit]
+[Git::Push]
diff --git a/lib/Devel/OverloadInfo.pm b/lib/Devel/OverloadInfo.pm
new file mode 100644
index 0000000..2e06978
--- /dev/null
+++ b/lib/Devel/OverloadInfo.pm
@@ -0,0 +1,192 @@
+package Devel::OverloadInfo;
+$Devel::OverloadInfo::VERSION = '0.002';
+# ABSTRACT: introspect overloaded operators
+
+# =head1 DESCRIPTION
+#
+# Devel::OverloadInfo returns information about L<overloaded|overload>
+# operators for a given class (or object), including where in the
+# inheritance hierarchy the overloads are declared and where the code
+# implementing it is.
+#
+# =cut
+
+use strict;
+use warnings;
+use overload ();
+use Scalar::Util qw(blessed);
+use Sub::Identify qw(sub_fullname);
+use Package::Stash 0.14;
+use MRO::Compat;
+
+use Exporter 5.57 qw(import);
+our @EXPORT_OK = qw(overload_info);
+
+sub stash_with_symbol {
+    my ($class, $symbol) = @_;
+
+    for my $package (@{mro::get_linear_isa($class)}) {
+        my $stash = Package::Stash->new($package);
+        my $value_ref = $stash->get_symbol($symbol);
+        return ($stash, $value_ref) if $value_ref;
+    }
+    return;
+}
+
+# =func overload_info
+#
+#     my $info = overload_info($class_or_object);
+#
+# Returns a hash reference with information about all the overloaded
+# operators of the argument, which can be either a class name or a blessed
+# object. The keys are the overloaded operators, as specified in
+# C<%overload::ops> (see L<overload/Overloadable Operations>).
+#
+# =over
+#
+# =item class
+#
+# The name of the class in which the operator overloading was declared.
+#
+# =item code
+#
+# A reference to the function implementing the overloaded operator.
+#
+# =item code_name
+#
+# The name of the function implementing the overloaded operator, as
+# returned by C<sub_fullname> in L<Sub::Identify>.
+#
+# =item method_name (optional)
+#
+# The name of the method implementing the overloaded operator, if the
+# overloading was specified as a named method, e.g. C<< use overload $op
+# => 'method'; >>.
+#
+# =item code_class (optional)
+#
+# The name of the class in which the method specified by C<method_name>
+# was found.
+#
+# =item value (optional)
+#
+# For the special C<fallback> key, the value it was given in C<class>.
+#
+# =back
+#
+# =cut
+
+sub overload_info {
+    my $class = blessed($_[0]) || $_[0];
+
+    return undef unless overload::Overloaded($class);
+
+    my (%overloaded);
+    for my $op (map split(/\s+/), values %overload::ops) {
+        my $op_method = $op eq 'fallback' ? "()" : "($op";
+        my ($stash, $func) = stash_with_symbol($class, "&$op_method")
+            or next;
+        my $info = $overloaded{$op} = {
+            class => $stash->name,
+        };
+        if ($func == \&overload::nil) {
+            # Named method or fallback, stored in the scalar slot
+            if (my $value_ref = $stash->get_symbol("\$$op_method")) {
+                my $value = $$value_ref;
+                if ($op eq 'fallback') {
+                    $info->{value} = $value;
+                } else {
+                    $info->{method_name} = $value;
+                    if (my ($impl_stash, $impl_func) = stash_with_symbol($class, "&$value")) {
+                        $info->{code_class} = $impl_stash->name;
+                        $info->{code} = $impl_func;
+                    }
+                }
+            }
+        } else {
+            $info->{code} = $func;
+        }
+        $info->{code_name} = sub_fullname($info->{code})
+            if exists $info->{code};
+    }
+    return \%overloaded;
+}
+
+1;
+
+__END__
+
+=pod
+
+=encoding UTF-8
+
+=head1 NAME
+
+Devel::OverloadInfo - introspect overloaded operators
+
+=head1 VERSION
+
+version 0.002
+
+=head1 DESCRIPTION
+
+Devel::OverloadInfo returns information about L<overloaded|overload>
+operators for a given class (or object), including where in the
+inheritance hierarchy the overloads are declared and where the code
+implementing it is.
+
+=head1 FUNCTIONS
+
+=head2 overload_info
+
+    my $info = overload_info($class_or_object);
+
+Returns a hash reference with information about all the overloaded
+operators of the argument, which can be either a class name or a blessed
+object. The keys are the overloaded operators, as specified in
+C<%overload::ops> (see L<overload/Overloadable Operations>).
+
+=over
+
+=item class
+
+The name of the class in which the operator overloading was declared.
+
+=item code
+
+A reference to the function implementing the overloaded operator.
+
+=item code_name
+
+The name of the function implementing the overloaded operator, as
+returned by C<sub_fullname> in L<Sub::Identify>.
+
+=item method_name (optional)
+
+The name of the method implementing the overloaded operator, if the
+overloading was specified as a named method, e.g. C<< use overload $op
+=> 'method'; >>.
+
+=item code_class (optional)
+
+The name of the class in which the method specified by C<method_name>
+was found.
+
+=item value (optional)
+
+For the special C<fallback> key, the value it was given in C<class>.
+
+=back
+
+=head1 AUTHOR
+
+Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
+
+=head1 COPYRIGHT AND LICENSE
+
+This software is copyright (c) 2014 by Dagfinn Ilmari Mannsåker.
+
+This is free software; you can redistribute it and/or modify it under
+the same terms as the Perl 5 programming language system itself.
+
+=cut
diff --git a/t/author-pod-spell.t b/t/author-pod-spell.t
new file mode 100644
index 0000000..6eecd92
--- /dev/null
+++ b/t/author-pod-spell.t
@@ -0,0 +1,27 @@
+
+BEGIN {
+  unless ($ENV{AUTHOR_TESTING}) {
+    require Test::More;
+    Test::More::plan(skip_all => 'these tests are for testing by the author');
+  }
+}
+
+use strict;
+use warnings;
+use Test::More;
+
+# generated by Dist::Zilla::Plugin::Test::PodSpelling 2.006007
+use Test::Spelling 0.12;
+use Pod::Wordlist;
+
+
+add_stopwords(<DATA>);
+all_pod_files_spelling_ok( qw( bin lib  ) );
+__DATA__
+Dagfinn
+Ilmari
+Mannsåker
+ilmari
+lib
+Devel
+OverloadInfo
diff --git a/t/basic.t b/t/basic.t
new file mode 100644
index 0000000..ebaf7d9
--- /dev/null
+++ b/t/basic.t
@@ -0,0 +1,103 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use Test::More 0.88;
+
+use Devel::OverloadInfo qw(overload_info);
+
+sub MyModule::negate { -$_[0] }
+
+my $num_sub;
+BEGIN { $num_sub = sub { 0 } };
+{
+    package  # hide from PAUSE
+        BaseClass;
+    use overload (
+        '""' => 'stringify',
+        bool => 'boolify',
+        '0+' => $num_sub,
+    );
+
+    sub boolify { 1 }
+}
+
+{
+    package # hide from PAUSE
+        ChildClass;
+    use parent -norequire => 'BaseClass';
+
+    use overload (
+        neg => \&MyModule::negate,
+        fallback => 1,
+    );
+
+    sub stringify { "foo" }
+}
+
+my $boi = overload_info('BaseClass');
+
+# Whether undef fallback exists varies between perl versions
+if (my $fallback = delete $boi->{fallback}) {
+    is_deeply $fallback, {
+        class => 'BaseClass',
+        value => undef,
+    }, 'BaseClass fallback is undef';
+}
+
+is_deeply $boi,
+    {
+        '""' => {
+            class => 'BaseClass',
+            method_name => 'stringify',
+        },
+        bool => {
+            class => 'BaseClass',
+            method_name => 'boolify',
+            code_class => 'BaseClass',
+            code => \&BaseClass::boolify,
+            code_name => "BaseClass::boolify",
+        },
+        '0+' => {
+            class => 'BaseClass',
+            code => $num_sub,
+            code_name => 'main::__ANON__',
+        },
+    },
+    "BaseClass overload info" or note explain $boi;
+
+my $coi = overload_info('ChildClass');
+
+is_deeply $coi,
+    {
+        fallback => {
+            class => 'ChildClass',
+            value => 1,
+        },
+        '""' => {
+            class => 'BaseClass',
+            method_name => 'stringify',
+            code_class => 'ChildClass',
+            code => \&ChildClass::stringify,
+            code_name => 'ChildClass::stringify',
+        },
+        bool => {
+            class => 'BaseClass',
+            method_name => 'boolify',
+            code_class => 'BaseClass',
+            code => \&BaseClass::boolify,
+            code_name => "BaseClass::boolify",
+        },
+        '0+' => {
+            class => 'BaseClass',
+            code => $num_sub,
+            code_name => 'main::__ANON__',
+        },
+        neg => {
+            class => 'ChildClass',
+            code => \&MyModule::negate,
+            code_name => 'MyModule::negate',
+        },
+    },
+    "ChildClass overload info" or note explain $coi;
+
+done_testing;
diff --git a/t/release-pod-syntax.t b/t/release-pod-syntax.t
new file mode 100644
index 0000000..cdd6a6c
--- /dev/null
+++ b/t/release-pod-syntax.t
@@ -0,0 +1,14 @@
+#!perl
+
+BEGIN {
+  unless ($ENV{RELEASE_TESTING}) {
+    require Test::More;
+    Test::More::plan(skip_all => 'these tests are for release candidate testing');
+  }
+}
+
+# This file was automatically generated by Dist::Zilla::Plugin::PodSyntaxTests.
+use Test::More;
+use Test::Pod 1.41;
+
+all_pod_files_ok();