I think my previous example was perhaps too involved. Here's something simpler that shows the same behavior:
#!/local/bin/perl -w
use warnings;
use strict;
# Start of a big block - don't want to pollute
{
my $y = 222;
my $x = 777;
print "Initialized, what's the values?";
print " x = $x\n";
print " y = $y\n\n";
sub mysub
{
print " Start of subroutine\n";
print " what's x? (forget y for now)\n";
print " x = $x\n\n";
print " Going to child block\n";
print " let's inspect the variables again:\n";
my $sr =
sub {
print "y = $y\n\n";
print "x = $x\n\n";
};
&$sr;
}
}
# Big Block
mysub();
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