Is GLOBALS and Compiler thread safe?

[eighty4]

I want to use multiple Compiler instances in a parallel and I'm only familiar with the GLOBALS.set(&Default::default() || { try_with_handler }) setup used in the SWC crate examples. Would spans of multiple builds affect other builds or would it be thread safe? Suggestions to read in the SWC sources to understand what GLOBALS and spans are/do would be helpful.

[kdy1]

Yeas, those are thread-safe

[kdy1]

If a type is Send + Sync in rust, it's thread safe.

[eighty4]

Awesome, thanks.