if statements in arg lists get evaluated out of order

[dunhamsteve]

When an if occurs in an argument list, it is evaluated before any proceeding arguments. I was expecting the arguments to be evaluated in order.

E.g. I expect the following to evaluate to (1 2), but it evaluates to (2 1) (here str is a placeholder for a function of two arguments and add represents something with side-effects).

(with r () (str (add r 1) (if true (add r 2))))

[sctb]

Yes, you're absolutely right. I've dealt with this behavior in other projects but haven't updated Lumen. Perhaps @shawwn has (or has had) a patch for this?

[dunhamsteve]

Note that this isn't affecting me at the moment (that I know of), it's just an edge case that came to mind while thinking about implementing my own lisp on top of javascript. (I've managed to tweak lumen to my liking, just thought it'd be fun to write my own.)

[shawwn]

It's worth fixing. I've run into this too.

Patch soon.