At what point does stacking expression binding functions become too much?

[pturmel]

@tmahaffey

What do you mean by staying away from tag()

Some discussions (and rants) are easily found with my ID and "tag()" in a search. You can start with this topic, though:

Expression into Indirect Tag Binding

Ah, but there is. It simply runs slower, because expressions built around it have to completely execute, even if only one little piece changes, and even if a given change wouldn’t yield a change in the output. Totally aside from the (fixed?) bugs in its implementation in v8.0. Gateway expression tags are the only place the tag() expression function makes sense.

@PGriffith

Once compiled, Jython or an expression are going to run about the same speed, or at least comparable.

This would shock me. Even compiled, Jython has a lot more "going through one's [expletive] to get to one's elbow" gyrations. Including wrapping and unwrapping java objects / jython objects. Expressions blow jython out of the water. IIRC, @nminchin tested this for us, to that effect.