Re^2: Noob OO Question

When you instantiated the Hi package you passed references to some subroutines, in method_b for example you return the reference back to the caller, you are not executing the method

Consider this

my $sub_ref = \sub {
    my $who = shift;
    print "hello $who\n";
};

#In order to execute need to deref by prefixing with $
$$sub_ref->('dude');
[download]

coderefs are tricky so try to keep your examples simple until you get the grasp on it

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Re^3: Noob OO Question by Anonymous Monk on Jun 07, 2010 at 23:52 UTC
Here's a sub-question regarding this. So, I tried dereferencing it by running this. `my $testing = $self->{test_b}; print $$testing->();` [download] This works!! But how come I cannot do this? `print $$self->{test_b}->();` [download] It gives us this output. `Not a SCALAR reference at Hi.pm` [download] Also, how do I dereference '$test->method_d()'?	[reply] [d/l] [select]
Re^4: Noob OO Question by JavaFan (Canon) on Jun 08, 2010 at 00:01 UTC
`$$self->{test_b}->()` first dereferences `$self`. Writing `$self->{test_b}->()` should work. Or without arrows: `&{$$self{test_b}}()`. Note the placement of the outer parens. Also, how do I dereference '$test->method_d()'? You don't. `$test->method_d()` returns a string.	[reply] [d/l] [select]
Re^5: Noob OO Question by Anonymous Monk on Jun 08, 2010 at 00:12 UTC
Typing it like this doesn't work for me. `$self->{test_b}->()` [download] It gives me this output. `Not a CODE reference at Hi.pm` [download]	[reply] [d/l] [select]
Re^6: Noob OO Question by ikegami (Patriarch) on Jun 08, 2010 at 04:59 UTC
Re^6: Noob OO Question by bluescreen (Friar) on Jun 08, 2010 at 00:21 UTC