Hi, I'm having problems with getting a method in my object to dispatch to other methods within the object.
Here's an example without an object, showing what I'm doing:

sub first {
  print "This is first\n";
}
sub second {
  print "This is second\n";
}
sub dispatch {
  no strict 'refs';
  my $command = shift;
  print "In dispatch, command = $command\n";
  my %dispatch = ( 'a'=>'first', 'b'=>'second' );
  &{$dispatch{$command}}();
}

dispatch('a');
dispatch('b');
[download]

The output for this is:

In dispatch, command = a
This is first
In dispatch, command = b
This is second

Here I use the same concept with objectified code:

package FOO;
sub first {
  print "This is first\n";
}
sub second {
  print "This is second\n";
}
sub dispatch {
  my $self = shift;
  no strict 'refs';
  my $command = shift;
  print "In dispatch, command = $command\n";
  my %dispatch = ( 'a'=>'first', 'b'=>'second' );
  &{$self->{$dispatch{$command}}}();
}

sub new {
  my $class = shift;
  my $self = {};
  bless $self, $class;
  return $self;
}

package ::;
my $foo = new FOO();
$foo->dispatch('a');
$foo->dispatch('b');
[download]

But now, it fails with the following error:

Undefined subroutine &main:: called at ./dispatch2.pl line 15.

My best guess is that perl is taking the curly braces after the $self-> and interpreting that to mean that to mean everything inside refers to a key in the blessed hash, instead of evaluating everything and recognizing it as a function call. Any suggestions on how to get around this? -Dan

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.