"... when a user says: "use module 1.0.0", and I'm working in module "2.0.0"? My 2.0.0 module would never get called as far as I can tell...no?"
use Module VERSION specifies a minimum version. If the user has v2.0.0 installed and their code has use Module 1.0.0;, this will work fine.
"What I would want to do is have my 2.0.0 module detect if it was called by something prior to 2.0, and apply the old interface semantics for compatibility."
You can add a VERSION method to your class to achieve this.
This is described in use. This doco may be a little confusing: you want the use Module VERSION info (near the middle of the page); not the use VERSION info (near the top of the page).
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
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! —
Posts may use any of the Perl Monks Approved HTML tags:
Outside of code tags, you may need to use entities for some characters:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, 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, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||