I'm working on a module, and I'm trying to do something like this. Only it doesn't work: 
package Foo;
sub new
{
  my($pkg, %args) = @_;
  my $self =
  {
    method => 'correlation',
    %args
  };

  $self->{funcs}{correlation} = \&$self->correlation;

  return bless $self, $pkg;
}

sub correlation
{
  print "This is the correlation function!";
}

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The idea here is that I'll have a variety of drop-in functions, and it'd be nice to be able to do something like: 
  my $x = new Foo(method => 'biscuit');

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and just have a check in the Foo module: 
  if exists $self->{funcs}{$self->{method}}
  {
    $self->{funcs}{$self->{method}}(params);
  }
  else
  {
    die "Sorry, the method $self->{method} isn't valid!";
  }

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However, trying this in various ways gives me various error messages: 
  #This says "Not a CODE referece at Foo.pm line..."
  $self->{funcs}{correlation} = \&$self->correlation;

  #This says "Can't call method 'correlation' on unblessed
  # reference at Foo.pm line..."
  $self->{funcs}{correlation} = \&{$self->correlation};

  #And this says "Scalar found where operator expected at
  # Foo.pm line...
  $self->{funcs}{correlation} = \&($self->correlation);

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So, any suggestions? I dug around for quite a while but failed to find any information on this. Help would be most appreciated (as would suggestions on how to do this other ways)!

Thanks!

dan

In reply to reference to self function by anjiro

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