I've tried to use Lexical::Alias 0.03 because I'd like to be able to do something like:

sub foo {
  alias $_[0] => my $byRef;
  ...
  $byRef += $result;
}

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but it seems Lexical::Alias doesn't work in subroutines. Is this a bug or the expected behaviour?
use strict;
use warnings;
use Lexical::Alias;

my $orig = 1;
my $alias = 99;
alias $orig => $alias;
print "$orig = $alias\n";

sub foo {
    my $orig = 1;
    my $alias = 99;
    alias $orig => $alias;
    print "foo(): $orig = $alias\n";
}

foo();

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prints:
 1 = 1
 foo(): 1 = 99

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but I believe it should print:
 1 = 1
 foo(): 1 = 1

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My Perl is 

This is perl, v5.8.0 built for MSWin32-x86-multi-thread
(with 1 registered patch, see perl -V for more detail)

Copyright 1987-2002, Larry Wall

Binary build 805 provided by ActiveState Corp. http://www.ActiveState.
+com
Built 18:08:02 Feb  4 2003

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running under Win2k Server.

P.S.: IMHO, it would be better if the parameters to alias() were the other way around (I assign an alias to a variable, not a variable to an alias.) and if the alias was my()d automaticaly. So that I could write:

sub foo {
  alias $byRef => $_[0];
  ...

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I think this would make more sense.

Jenda
Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live.
   -- Rick Osborne

In reply to Lexical::Alias & subroutines by Jenda

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