Function inline expansion for existing code?

[shakiba]

Hi,
We have an existing code which has a large number of vector operator function calls, like adding or subtracting vectors. We would like to do function inline-expansion when we build the project to improve production performance. However we would like to keep the source code as it is, to keep development and debugging easier.

I tried $$inline!(), it works for our operator functions, but it requires changing all the code (which we don't want). Is there any way to do the same thing with decorator? For example:

@$inline
export function dotVec2(a, b) {
  return a.x * b.x + a.y * b.y;
}

Thanks,