I think I'm starting to get the hang of this, thankyou.

I guess my greatest confusion was where and when symbol names needed to be declared. Mmmm.

I think I understand that

1. our $var is lexically scoped, and is just an alias for $__PACKAGE::var

2. because our $var is lexically scoped, when it is in a BEGIN block, it does not mean that the alias (i.e. $var) is available outside of the BEGIN block.

3. however, if the alias is defined outside the BEGIN block, it will be available for use within the BEGIN block because of the lexical scope if and only if it is declared before the BEGIN block is written

EXAMPLE #1 works, #2 does not 

#!/usr/bin/perl
use strict;
our %aa; our $bb; our @cc;
print keys %aa,", $bb, @cc\n";
BEGIN {%aa=(1,11); $bb=22; @cc=(3,33); }

[download]
#!/usr/bin/perl
use strict;
BEGIN {%aa=(1,11); $bb=22; @cc=(3,33); }
our %aa; our $bb; our @cc;
print keys %aa,", $bb, @cc\n";

[download]
4. all code within the BEGIN block is executed first, regardless of it's location within the file

5. egads! no wonder I'm confused

In reply to Re^2: Confusion about BEGIN block by Sandy
in thread Confusion about BEGIN block by Sandy

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