Added private functions for resetting the global runtime

[djspiewak]

This is one attempt to (somewhat) address #1959. Would love some thoughts on it. I basically want to make the most narrowly-scoped thing possible. You could get at this by calling IORuntime.asInstanceOf[{ def resetGlobal(): Unit }].resetGlobal().

[vasilmkd]

Gotta love reflective calls.

[cquiroz]

Thanks I'll give it a try, cool
Trick to allow calls to a private method

[johnynek]

I'm confused how this interacts well with lazy val global? Isn't that fixed exactly once and changing _global won't change anything?

[cquiroz]

FWIW this is working as I wanted for my use case

[djspiewak]

I'm confused how this interacts well with lazy val global? Isn't that fixed exactly once and changing _global won't change anything?

Bleh. You're correct. It doesn't interact at all. This basically only solves the problem from the perspective of IOApp.

[johnynek]

mutation. Not even once!

;)

[djspiewak]

mutation. Not even once!

Sir, you came to the WRONG part of town! ;-)