This one weird trick allows you to capture loop variables.

[Timon Gehr]

On 10/20/24 04:29, Walter Bright wrote:
> I'm a bit sorry I implemented opApply.

I am not.

> The conversion of the loop body 
> to a lambda is a tricky beast, and in general such complex rewrites are 
> not a good idea. The language should be straightforward.
> 

As someone who has also implemented `opApply`, I do think it is quite 
straightforward. It's just internal iteration with support for multiple 
ways to exit the loop, encoded using numerical indices.