forked from pool/perl-UNIVERSAL-can
81 lines
2.9 KiB
RPMSpec
81 lines
2.9 KiB
RPMSpec
#
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# spec file for package perl-UNIVERSAL-can
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#
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# Copyright (c) 2014 SUSE LINUX Products GmbH, Nuernberg, Germany.
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#
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# All modifications and additions to the file contributed by third parties
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# remain the property of their copyright owners, unless otherwise agreed
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# upon. The license for this file, and modifications and additions to the
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# file, is the same license as for the pristine package itself (unless the
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# license for the pristine package is not an Open Source License, in which
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# case the license is the MIT License). An "Open Source License" is a
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# license that conforms to the Open Source Definition (Version 1.9)
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# published by the Open Source Initiative.
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# Please submit bugfixes or comments via http://bugs.opensuse.org/
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#
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Name: perl-UNIVERSAL-can
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Version: 1.20140328
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Release: 0
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%define cpan_name UNIVERSAL-can
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Summary: work around buggy code calling UNIVERSAL::can() as a function
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License: Artistic-1.0 or GPL-1.0+
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Group: Development/Libraries/Perl
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Url: http://search.cpan.org/dist/UNIVERSAL-can/
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Source: http://www.cpan.org/authors/id/C/CH/CHROMATIC/%{cpan_name}-%{version}.tar.gz
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Source100: README.md
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BuildArch: noarch
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BuildRoot: %{_tmppath}/%{name}-%{version}-build
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BuildRequires: perl
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BuildRequires: perl-macros
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%{perl_requires}
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%description
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The UNIVERSAL class provides a few default methods so that all objects can
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use them. Object orientation allows programmers to override these methods
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in subclasses to provide more specific and appropriate behavior.
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Some authors call methods in the UNIVERSAL class on potential invocants as
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functions, bypassing any possible overriding. This is wrong and you should
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not do it. Unfortunately, not everyone heeds this warning and their bad
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code can break your good code.
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This module replaces 'UNIVERSAL::can()' with a method that checks to see if
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the first argument is a valid invocant has its own 'can()' method. If so,
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it gives a warning and calls the overridden method, working around buggy
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code. Otherwise, everything works as you might expect.
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Some people argue that you must call 'UNIVERSAL::can()' as a function
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because you don't know if your proposed invocant is a valid invocant.
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That's silly. Use 'blessed()' from the Scalar::Util manpage if you want to
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check that the potential invocant is an object or call the method anyway in
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an 'eval' block and check for failure (though check the exception
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_returned_, as a poorly-written 'can()' method could break Liskov and throw
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an exception other than "You can't call a method on this type of
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invocant").
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Just don't break working code.
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%prep
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%setup -q -n %{cpan_name}-%{version}
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%build
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%{__perl} Makefile.PL INSTALLDIRS=vendor
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%{__make} %{?_smp_mflags}
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%check
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%{__make} test
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%install
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%perl_make_install
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%perl_process_packlist
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%perl_gen_filelist
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%files -f %{name}.files
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%defattr(-,root,root,755)
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%doc Changes LICENSE README
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%changelog
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