Delegation, Performance, and Inlining

[wduquette]

Suppose I've got a type TypeA, and a TypeB that includes it. TypeB delegates some methods to TypeA

struct TypeB {
    value: TypeA,
}

impl TypeB {
    fn do_something(&self, data: &str) -> SomeResult {
        self.value.do_something(data)
    }
}

What effect does this kind of delegation have on performance? Is the compiler smart enough to inline this kind of thing without being told?

[asymmetrikon]

As long as you're running in release, it's transparent. If you want to check stuff like this you can use godbolt.

[wduquette]

That's pretty amazing. (godbolt, I mean). Wow.

Thanks for the answer!