Re: $self->do_it("now") question

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Re^2: $self->do_it("now") question by packetstormer (Monk) on Jul 21, 2015 at 14:14 UTC
Yeah, I did! It really doesn't exist. I've even searched the whole system for that text and got no hits apart from the pm file it's called from - very strange `grep "do_it" ./ -ir`	[reply] [d/l]
Re^3: $self->do_it("now") question by Anonymous Monk on Jul 21, 2015 at 14:22 UTC
very strange Not really; it's fairly normal in a dynamic language like Perl. Like choroba already said, `sub` names can be autoloaded or dynamically created. Note how in the following two examples, there is no obvious (`grep`pable) place that `do_it` is defined. `sub AUTOLOAD { print "Hello!\n" } do_it(); __END__ Hello!` [download] `my $x = "do_"; my $y = "it"; { no strict 'refs'; *{"$x$y"} = sub { print "Hello!\n" }; } do_it(); __END__ Hello!` [download]	[reply] [d/l] [select]
Re^3: $self->do_it("now") question by stevieb (Canon) on Jul 21, 2015 at 14:19 UTC
It very well could be that a module is doing some strange symbol table hackery with the call and transforming it into something that doesn't even remotely resemble the name 'do_it'. Your best bet is the debugger...	[reply]
Re^3: $self->do_it("now") question by Laurent_R (Canon) on Jul 21, 2015 at 14:35 UTC
Besides the possibility, mentioned by other monks, of dynamically created method names and other symbol table hacking or some other form of black magic, I do not think that your `grep` is sufficient even for straight forward OO modules, because it looks only into the current directory and its sub-directory tree. Perl modules can be installed in other places. You should also look into the directories listed in the @INC array and their subdirectories.	[reply] [d/l]