Functors

[mikevoronov]

At the moment the interpreter doesn't allow users doing any operation over values inside AIR scripts. It's a really huge limitation that is partially solvable now with peer builtins, but it is not an optimal, transparent, and handy solution.

Design of functors is in the research stage.

Progress:

• length functor (Introduce length functor #315)
• math functors
• research which kinds of functors keep determinism and convergence

[mikevoronov]

We discussed and decided to have at least these four types of functors in the first version:

• aggregators
• selectors (getters)
• filters
• predicates