.\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35) .\" .\" 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 .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. Capital omega is used to do unbreakable dashes and .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, .\" nothing in troff, for use with C<>. .tr \(*W- .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' .ie n \{\ . ds -- \(*W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} .el\{\ . ds -- \|\(em\| . ds PI \(*p . ds L" `` . ds R" '' . 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 .. .if !\nF .nr F 0 .if \nF>0 \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} .\} .\" ======================================================================== .\" .IX Title "UNIVERSAL::exports 3pm" .TH UNIVERSAL::exports 3pm "2018-07-11" "perl v5.26.2" "User Contributed Perl Documentation" .\" 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" UNIVERSAL::exports \- Lightweight, universal exporting of variables .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 2 \& package Foo; \& use UNIVERSAL::exports; \& \& # Just like Exporter. \& @EXPORT = qw($This &That); \& @EXPORT_OK = qw(@Left %Right); \& \& \& # Meanwhile, in another piece of code! \& package Bar; \& use Foo; # exports $This and &That. .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" This is an alternative to Exporter intended to provide a universal, lightweight subset of its functionality. It uses Exporter::Lite, so look there for details. .PP Additionally, \f(CW\*(C`exports()\*(C'\fR is provided to find out what symbols a module exports. .PP UNIVERSAL::exports places its methods in the \s-1UNIVERSAL\s0 namespace, so there is no need to subclass from it. .SH "Methods" .IX Header "Methods" UNIVERSAL::exports has two public methods, \fIimport()\fR derived from Exporter::Lite, and \fIexports()\fR. .IP "\fBimport\fR" 4 .IX Item "import" .Vb 2 \& Some::Module\->import; \& Some::Module\->import(@symbols); .Ve .Sp This is Exporter::Lite's \fIimport()\fR method. Look in Exporter::Lite for details. .IP "\fBexports\fR" 4 .IX Item "exports" .Vb 2 \& @exported_symbols = Some::Module\->exports; \& Some::Module\->exports($symbol); .Ve .Sp Reports what symbols are exported by Some::Module. With no arguments, it simply returns a list of all exportable symbols. Otherwise, it reports if it will export a given \f(CW$symbol\fR. .SH "DIAGNOSTICS" .IX Header "DIAGNOSTICS" .ie n .IP "'""%s"" is not exported by the %s module'" 4 .el .IP "'``%s'' is not exported by the \f(CW%s\fR module'" 4 .IX Item "'%s is not exported by the %s module'" Attempted to import a symbol which is not in \f(CW@EXPORT\fR or \f(CW@EXPORT_OK\fR. .ie n .IP "'Can\e't export symbol: %s'" 4 .el .IP "'Can\e't export symbol: \f(CW%s\fR'" 4 .IX Item "'Can't export symbol: %s'" Attempted to import a symbol of an unknown type (ie. the leading $@% salad wasn't recognized). .SH "AUTHORS" .IX Header "AUTHORS" Michael G Schwern .SH "BUGS and ISSUES" .IX Header "BUGS and ISSUES" Please report bugs and issues via .SH "LICENSE and COPYRIGHT" .IX Header "LICENSE and COPYRIGHT" Copyright 2001, 2006 Michael G Schwern .PP This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. .PP See .SH "SEE ALSO" .IX Header "SEE ALSO" Other ways to Export: Exporter, Exporter::Lite, Sub::Exporter, Exporter::Simple .PP The Perl 6 \s-1RFC\s0 that started it all: .PP More \s-1UNIVERSAL\s0 magic: UNIVERSAL::require