package junk;

sub BEGIN {  printf "Hi from %s BEGIN\n", __PACKAGE__ }
sub CHECK {  printf "Hi from %s CHECK\n", __PACKAGE__ }
sub INIT {  printf "Hi from %s INIT\n", __PACKAGE__ }
sub END {  printf "Hi from %s END\n", __PACKAGE__ }

1;

##</code><code>##

#! perl -slw
use strict;

print "Main runtime: About to eval use junk"; <STDIN>;

eval "use junk";

print "Main runtime: Just eval'd use junk"; <STDIN>;

##</code><code>##

C:\test>junk
Main runtime: About to eval use junk

Hi from junk BEGIN
Too late to run CHECK block at junk.pm line 4, <STDIN> line 1.
Too late to run INIT block at junk.pm line 5, <STDIN> line 1.
Main runtime: Just eval'd use junk

Hi from junk END

##</code><code>##

package junk;
use Attribute::Handlers;
no warnings 'redefine';

sub TRACE : ATTR(CODE,BEGIN) {
    my ($pkg, $sym, $ref, $attr, $data, $phase, $file, $line) = @_;
    *{ $sym } = sub {
        warn "$file($line) called with [@_]\n";
        my( @rc )= &$ref;
        warn "$file($line): returning [ @rc ]\n";
    }
}

sub doStuff :TRACE {
    print "junk::doStuff says hi";
}
1;



##</code><code>##

#! perl -slw
use strict;

print "Main runtime: About to eval use junk"; <STDIN>;

eval "use junk";

print "Main runtime: Just eval'd use junk; calling doStuff()"; <STDIN>;

junk::doStuff( 1..10 );


##</code><code>##

C:\test>junk
Main runtime: About to eval use junk

Main runtime: Just eval'd use junk; calling doStuff()

junk.pm(16) called with [1 2 3 4 5 6 7 8 9 10]
junk::doStuff says hi
junk.pm(16): returning [ 1 ]