Adding upstream version 4.22.0.upstream/4.22.0

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

1 files changed, 176 insertions, 0 deletions

diff --git a/upstream/mageia-cauldron/man3pm/Sub::Util.3pm b/upstream/mageia-cauldron/man3pm/Sub::Util.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<>.
+.ie n \{\
+.    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 "Sub::Util 3pm"
+.TH Sub::Util 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
+Sub::Util \- A selection of utility subroutines for subs and CODE references
+.SH SYNOPSIS
+.IX Header "SYNOPSIS"
+.Vb 1
+\&    use Sub::Util qw( prototype set_prototype subname set_subname );
+.Ve
+.SH DESCRIPTION
+.IX Header "DESCRIPTION"
+\&\f(CW\*(C`Sub::Util\*(C'\fR contains a selection of utility subroutines that are useful for
+operating on subs and CODE references.
+.PP
+The rationale for inclusion in this module is that the function performs some
+work for which an XS implementation is essential because it cannot be
+implemented in Pure Perl, and which is sufficiently-widely used across CPAN
+that its popularity warrants inclusion in a core module, which this is.
+.SH FUNCTIONS
+.IX Header "FUNCTIONS"
+.SS prototype
+.IX Subsection "prototype"
+.Vb 1
+\&    my $proto = prototype( $code )
+.Ve
+.PP
+\&\fISince version 1.40.\fR
+.PP
+Returns the prototype of the given \f(CW$code\fR reference, if it has one, as a
+string. This is the same as the \f(CW\*(C`CORE::prototype\*(C'\fR operator; it is included
+here simply for symmetry and completeness with the other functions.
+.SS set_prototype
+.IX Subsection "set_prototype"
+.Vb 1
+\&    my $code = set_prototype $prototype, $code;
+.Ve
+.PP
+\&\fISince version 1.40.\fR
+.PP
+Sets the prototype of the function given by the \f(CW$code\fR reference, or deletes
+it if \f(CW$prototype\fR is \f(CW\*(C`undef\*(C'\fR. Returns the \f(CW$code\fR reference itself.
+.PP
+\&\fICaution\fR: This function takes arguments in a different order to the previous
+copy of the code from \f(CW\*(C`Scalar::Util\*(C'\fR. This is to match the order of
+\&\f(CW\*(C`set_subname\*(C'\fR, and other potential additions in this file. This order has
+been chosen as it allows a neat and simple chaining of other
+\&\f(CW\*(C`Sub::Util::set_*\*(C'\fR functions as might become available, such as:
+.PP
+.Vb 5
+\& my $code =
+\&    set_subname   name_here =>
+\&    set_prototype \*(Aq&@\*(Aq      =>
+\&    set_attribute \*(Aq:lvalue\*(Aq =>
+\&       sub { ...... };
+.Ve
+.SS subname
+.IX Subsection "subname"
+.Vb 1
+\&    my $name = subname( $code )
+.Ve
+.PP
+\&\fISince version 1.40.\fR
+.PP
+Returns the name of the given \f(CW$code\fR reference, if it has one. Normal named
+subs will give a fully-qualified name consisting of the package and the
+localname separated by \f(CW\*(C`::\*(C'\fR. Anonymous code references will give \f(CW\*(C`_\|_ANON_\|_\*(C'\fR
+as the localname. If the package the code was compiled in has been deleted
+(e.g. using \f(CW\*(C`delete_package\*(C'\fR from Symbol), \f(CW\*(C`_\|_ANON_\|_\*(C'\fR will be returned as
+the package name. If a name has been set using "set_subname", this name will be
+returned instead.
+.PP
+This function was inspired by \f(CW\*(C`sub_fullname\*(C'\fR from Sub::Identify. The
+remaining functions that \f(CW\*(C`Sub::Identify\*(C'\fR implements can easily be emulated
+using regexp operations, such as
+.PP
+.Vb 3
+\& sub get_code_info { return (subname $_[0]) =~ m/^(.+)::(.*?)$/ }
+\& sub sub_name      { return (get_code_info $_[0])[0] }
+\& sub stash_name    { return (get_code_info $_[0])[1] }
+.Ve
+.PP
+\&\fIUsers of Sub::Name beware\fR: This function is \fBnot\fR the same as
+\&\f(CW\*(C`Sub::Name::subname\*(C'\fR; it returns the existing name of the sub rather than
+changing it. To set or change a name, see instead "set_subname".
+.SS set_subname
+.IX Subsection "set_subname"
+.Vb 1
+\&    my $code = set_subname $name, $code;
+.Ve
+.PP
+\&\fISince version 1.40.\fR
+.PP
+Sets the name of the function given by the \f(CW$code\fR reference. Returns the
+\&\f(CW$code\fR reference itself. If the \f(CW$name\fR is unqualified, the package of the
+caller is used to qualify it.
+.PP
+This is useful for applying names to anonymous CODE references so that stack
+traces and similar situations, to give a useful name rather than having the
+default of \f(CW\*(C`_\|_ANON_\|_\*(C'\fR. Note that this name is only used for this situation;
+the \f(CW\*(C`set_subname\*(C'\fR will not install it into the symbol table; you will have to
+do that yourself if required.
+.PP
+However, since the name is not used by perl except as the return value of
+\&\f(CW\*(C`caller\*(C'\fR, for stack traces or similar, there is no actual requirement that
+the name be syntactically valid as a perl function name. This could be used to
+attach extra information that could be useful in debugging stack traces.
+.PP
+This function was copied from \f(CW\*(C`Sub::Name::subname\*(C'\fR and renamed to the naming
+convention of this module.
+.SH AUTHOR
+.IX Header "AUTHOR"
+The general structure of this module was written by Paul Evans
+<leonerd@leonerd.org.uk>.
+.PP
+The XS implementation of "set_subname" was copied from Sub::Name by
+Matthijs van Duin <xmath@cpan.org>