#
# spec file for package perl-Data-Alias
#
# Copyright (c) 2024 SUSE LLC
#
# All modifications and additions to the file contributed by third parties
# remain the property of their copyright owners, unless otherwise agreed
# upon. The license for this file, and modifications and additions to the
# file, is the same license as for the pristine package itself (unless the
# license for the pristine package is not an Open Source License, in which
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# license that conforms to the Open Source Definition (Version 1.9)
# published by the Open Source Initiative.

# Please submit bugfixes or comments via https://bugs.opensuse.org/
#


%define cpan_name Data-Alias
Name:           perl-Data-Alias
Version:        1.280.0
Release:        0
# 1.28 -> normalize -> 1.280.0
%define cpan_version 1.28
License:        Artistic-1.0 OR GPL-1.0-or-later
Summary:        Comprehensive set of aliasing operations
URL:            https://metacpan.org/release/%{cpan_name}
Source0:        https://cpan.metacpan.org/authors/id/X/XM/XMATH/%{cpan_name}-%{cpan_version}.tar.gz
Source1:        cpanspec.yml
Source100:      README.md
BuildRequires:  perl
BuildRequires:  perl-macros
BuildRequires:  perl(Test::More) >= 0.88
Provides:       perl(Data::Alias) = %{version}
%undefine       __perllib_provides
%{perl_requires}

%description
Aliasing is the phenomenon where two different expressions actually refer
to the same thing. Modifying one will modify the other, and if you take a
reference to both, the two values are the same.

Aliasing occurs in Perl for example in for-loops and sub-calls:

    for $var ($x) {
            # here $var is an alias to $x
    }

    foo($y);
    sub foo {
            # here $_[0] is an alias to $y
    }

Data::Alias is a module that allows you to apply "aliasing semantics" to a
section of code, causing aliases to be made wherever Perl would normally
make copies instead. You can use this to improve efficiency and
readability, when compared to using references.

The exact details of aliasing semantics are below under DETAILS.

Perl 5.22 added some support for aliasing to the Perl core. It has a
different syntax, and a different set of operations, from that supplied by
this module; see perlref/Assigning to References. The core's aliasing
facilities are implemented more robustly than this module and are better
supported. If you can rely on having a sufficiently recent Perl version,
you should prefer to use the core facility rather than use this module. If
you are already using this module and are now using a sufficiently recent
Perl, you should attempt to migrate to the core facility.

%prep
%autosetup  -n %{cpan_name}-%{cpan_version}

%build
perl Makefile.PL INSTALLDIRS=vendor OPTIMIZE="%{optflags}"
%make_build

%check
make test

%install
%perl_make_install
%perl_process_packlist
%perl_gen_filelist

%files -f %{name}.files
%doc Changes README

%changelog