Hello. I’m working on a wrapper value class for units of measure, similar to what compose does with TextUnit, IntSize, etc. I want to make sure my operators are optimised enough so they always use the primitive type and not the boxed one. Is there any way i can check for this ?

not a direct answer to your question, but perhaps worth taking a look at https://github.com/vsirotin/si-units as they may have already solved this problem?