Hi

Find the right scope and tickle ${^WARNING_BITS}? 

$ perl -l
#!/usr/bin/perl --
use strict;
use warnings;
use diagnostics;


sub switch {
    no warnings 'exiting';
    while (@_) {
        my ($case, $action) = splice @_,0,2;
        return $action->($case) if $_ ~~ $case;
    }
}


no warnings 'exiting';
switch
  [1,2,3] => sub { print "bla" ; next},
  3       => sub { print "bla2" }
  for (3);
use warnings 'exiting';
switch
  [1,2,3] => sub { print "bla" ; next},
  3       => sub { print "bla2" }
  for (3);
use warnings 'exiting';
switch
  [1,2,3] => sub { no warnings 'exiting'; print "bla" ; next},
  3       => sub { no warnings 'exiting'; print "bla2" }
  for (3);

__END__
bla
bla2
bla
Exiting subroutine via next at - line 23 (#1)
    (W exiting) You are exiting a subroutine by unconventional means, 
+such
    as a goto, or a loop control statement.

bla2
bla
bla2

[download]

In reply to Re: Disabling runtime warnings in dynamic scope? (no warnings 'exiting'; use warnings 'exiting'; by beech
in thread Disabling runtime warnings in dynamic scope? by LanX

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.