27 replies

Understanding the Behavior of the filterStack Function in `pretty` Code

I am having some fun reading the

pretty

pretty

code for errors

I am trying to understand what the expected behaviour for the filterStack function is https://github.com/Effect-TS/effect/blob/0200f1263dcfd769ed6b381036207a583b34964c/src/internal/cause.ts#L960
My interpretation is that it is used to clean up the stack, but the implementation, returns something different (e.g. if on the first line of the stack I have

EffectPrimitive

EffectPrimitive

, it returns an empty string). If my interpretation is correct, the code should not return in the for loop