How does rust optimize bools in structs?

1

The title states the question.
If I have a struct like this:

struct Example {
   myBool1: bool,
   myBool2: bool,
   myBool3: bool,
   myBool4: bool
}

Does it compile into a u8 acting as a bitflag, does it just compile it as 4 u8s which can either be 1 or 0, or does it do something completely different?

2

That struct will take up four bytes, each either zero or one. It can't compile it down to a bitflag, because you must be to turn an &Example into an &bool pointing to any of the four booleans.

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