Hook::LexWrap Lexically scoped subroutine wrappers
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Hook::LexWrap Tags

perl subroutine wrappers subroutine wrappers lexically scoped

Hook::LexWrap Description

Lexically scoped subroutine wrappers Hook::LexWrap is a Perl module that allows you to install a pre- or post-wrapper (or both) around an existing subroutine. Unlike other modules that provide this capacity (e.g. Hook::PreAndPost and Hook::WrapSub), Hook::LexWrap implements wrappers in such a way that the standard caller function works correctly within the wrapped subroutine.SYNOPSIS use Hook::LexWrap; sub doit { print ""; return {my=>"data"} } SCOPED: { wrap doit, pre => sub { print "\n" }, post => sub { print "\n"; $_=9; }; my $temporarily = wrap doit, post => sub { print "\n" }, pre => sub { print "\n "}; @args = (1,2,3); doit(@args); # pre2->pre1->doit->post1->post2 } @args = (4,5,6); doit(@args); # pre1->doit->post1 Requirements: · Perl

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