WP_Plugin action/filter concept

[johnjamesjacoby]

Attached is a concept for allowing plugins to have dedicated action/filter loops.

The problem:

• Plugins like BuddyPress and bbPress that have their own actions and filters pollute the global action/filter namespace. This isn't necessarily bad, but it's arguably not optimal.
• Allowing plugins to have their own action/filter hooks means mirror action/filter names to match what's used in WordPress, without adding more items to the global action/filter array.
• BuddyPress and bbPress namespace their actions with prefixes, I.E. 'bp_init', 'bp_ready' et all. This works fine, and is straightforward to use, so I'm not really even sure this patch is that good.
• More conceptual than anything; it's intended as a fun experiment to toy with a new way of looking at WordPress how actions/filters might evolve in the future.

Attached is a big patch with a small example file. The patch is ugly looking, due to running out of time in the day and wanting feedback sooner.

Related: #22256

I don't see why you'd want to have your own 'init' action, but which doesn't necessarily fire at the same time as WP's 'init' action.