I think perhaps this is what you are a looking for:

my $meth = 'myFunction';
$obj->$meth(@args);
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You can also do this:

my $meth = $obj->can('myFunction');
$obj->$meth(@args);
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In general I would avoid goto since it is hard to get the dispatching right and you have to fiddle with @_ all of which will make your code that much harder to understand.

If you actually want a code reference to the method so that you can call it later on and have everything Just Work, then you want to use a closure like this:

my $meth = sub { $obj->myFunction(@_) };
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Then later on you can just do:

$meth->(@args);
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And you dont have to worry about making sure $self is properly on @_ etc etc.