The problem is definitely that the whole line
"
my $foo = "blah" if $var;" isn't
getting executed (including the my $foo declaration) ... you can see the expected behavior
if you change it to :
"
my $foo; $foo = "blah" if $var;"
But a global $foo isn't getting set -- otherwise
"-w/use strict" would complain.
I honestly have no idea what in the semantic rules of Perl
describes the behavior you are seeing. Why this compiles, and does what it does without complianing is beyond me. I would expect it to complain the same way this does...
#!/usr/bin/perl -w
use strict;
sub mycode {
my $var = $_[0];
my $foo = "blah" if $var;
print "foo is $foo\n" if $foo;
$bar ||= "BAR";
}
mycode("test");
mycode();
mycode();
mycode();
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