.\" Automatically generated by Pod::Man 4.14 (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 .. .\" 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 .. .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 "Aspect::Guard 3pm" .TH Aspect::Guard 3pm "2023-07-02" "perl v5.36.0" "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" Aspect::Guard \- General purpose guard object for destroy\-time actions .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& SCOPE: { \& \& my $guard = Aspect::Guard\->new( sub { \& print "Goodbye World!\en"; \& } ); \& \& } \& # Prints here as it exits the scope .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" The \fBAspect::Guard\fR class shipping with Aspect is a convenience module for creating \f(CW\*(C`CODE\*(C'\fR based objects that execute when they fall out of scope. .PP It's usage is effectively summarised by the synopsis. .SH "METHODS" .IX Header "METHODS" .SS "new" .IX Subsection "new" .Vb 1 \& my $guard = Aspect::Guard\->new( sub { do_something(); } ); .Ve .PP The \f(CW\*(C`new\*(C'\fR method creates a new guard object. It takes a single \f(CW\*(C`CODE\*(C'\fR references as a parameter, which it will bless into the guard class, which will execute the code reference when it's \f(CW\*(C`DESTROY\*(C'\fR hook is called. .SH "AUTHOR" .IX Header "AUTHOR" Adam Kennedy .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2011 \- 2013 Adam Kennedy. .PP This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.