Adding upstream version 4.22.0.upstream/4.22.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 135 insertions, 0 deletions

diff --git a/upstream/mageia-cauldron/man3pm/base.3pm b/upstream/mageia-cauldron/man3pm/base.3pm
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+.\" -*- mode: troff; coding: utf-8 -*-
+.\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43)
+.\"
+.\" Standard preamble:
+.\" ========================================================================
+.de Sp \" Vertical space (when we can't use .PP)
+.if t .sp .5v
+.if n .sp
+..
+.de Vb \" Begin verbatim text
+.ft CW
+.nf
+.ne \\$1
+..
+.de Ve \" End verbatim text
+.ft R
+.fi
+..
+.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>.
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+.    ds C` ""
+.    ds C' ""
+'br\}
+.el\{\
+.    ds C`
+.    ds C'
+'br\}
+.\"
+.\" Escape single quotes in literal strings from groff's Unicode transform.
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\"
+.\" If the F register is >0, we'll generate index entries on stderr for
+.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
+.\" entries marked with X<> in POD.  Of course, you'll have to process the
+.\" output yourself in some meaningful fashion.
+.\"
+.\" Avoid warning from groff about undefined register 'F'.
+.de IX
+..
+.nr rF 0
+.if \n(.g .if rF .nr rF 1
+.if (\n(rF:(\n(.g==0)) \{\
+.    if \nF \{\
+.        de IX
+.        tm Index:\\$1\t\\n%\t"\\$2"
+..
+.        if !\nF==2 \{\
+.            nr % 0
+.            nr F 2
+.        \}
+.    \}
+.\}
+.rr rF
+.\" ========================================================================
+.\"
+.IX Title "base 3pm"
+.TH base 3pm 2023-11-28 "perl v5.38.2" "Perl Programmers Reference Guide"
+.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
+.SH NAME
+base \- Establish an ISA relationship with base classes at compile time
+.SH SYNOPSIS
+.IX Header "SYNOPSIS"
+.Vb 2
+\&    package Baz;
+\&    use base qw(Foo Bar);
+.Ve
+.SH DESCRIPTION
+.IX Header "DESCRIPTION"
+Unless you are using the \f(CW\*(C`fields\*(C'\fR pragma, consider this module discouraged
+in favor of the lighter-weight \f(CW\*(C`parent\*(C'\fR.
+.PP
+Allows you to both load one or more modules, while setting up inheritance from
+those modules at the same time.  Roughly similar in effect to
+.PP
+.Vb 6
+\&    package Baz;
+\&    BEGIN {
+\&        require Foo;
+\&        require Bar;
+\&        push @ISA, qw(Foo Bar);
+\&    }
+.Ve
+.PP
+When \f(CW\*(C`base\*(C'\fR tries to \f(CW\*(C`require\*(C'\fR a module, it will not die if it cannot find
+the module's file, but will die on any other error.  After all this, should
+your base class be empty, containing no symbols, \f(CW\*(C`base\*(C'\fR will die. This is
+useful for inheriting from classes in the same file as yourself but where
+the filename does not match the base module name, like so:
+.PP
+.Vb 3
+\&        # in Bar.pm
+\&        package Foo;
+\&        sub exclaim { "I can have such a thing?!" }
+\&
+\&        package Bar;
+\&        use base "Foo";
+.Ve
+.PP
+There is no \fIFoo.pm\fR, but because \f(CW\*(C`Foo\*(C'\fR defines a symbol (the \f(CW\*(C`exclaim\*(C'\fR
+subroutine), \f(CW\*(C`base\*(C'\fR will not die when the \f(CW\*(C`require\*(C'\fR fails to load \fIFoo.pm\fR.
+.PP
+\&\f(CW\*(C`base\*(C'\fR will also initialize the fields if one of the base classes has it.
+Multiple inheritance of fields is \fBNOT\fR supported, if two or more base classes
+each have inheritable fields the 'base' pragma will croak. See fields
+for a description of this feature.
+.PP
+The base class' \f(CW\*(C`import\*(C'\fR method is \fBnot\fR called.
+.SH DIAGNOSTICS
+.IX Header "DIAGNOSTICS"
+.IP "Base class package ""%s"" is empty." 4
+.IX Item "Base class package ""%s"" is empty."
+base.pm was unable to require the base package, because it was not
+found in your path.
+.IP "Class 'Foo' tried to inherit from itself" 4
+.IX Item "Class 'Foo' tried to inherit from itself"
+Attempting to inherit from yourself generates a warning.
+.Sp
+.Vb 2
+\&    package Foo;
+\&    use base \*(AqFoo\*(Aq;
+.Ve
+.SH HISTORY
+.IX Header "HISTORY"
+This module was introduced with Perl 5.004_04.
+.SH CAVEATS
+.IX Header "CAVEATS"
+Due to the limitations of the implementation, you must use
+base \fIbefore\fR you declare any of your own fields.
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+fields