use rome_text_size::TextSize; #[derive(Copy, Clone)] struct BadRope<'a>(&'a [&'a str]); impl BadRope<'_> { fn text_len(self) -> TextSize { self.0.iter().copied().map(TextSize::of).sum() } } #[test] fn main() { let x: char = 'c'; let _ = TextSize::of(x); let x: &str = "hello"; let _ = TextSize::of(x); let x: &String = &"hello".into(); let _ = TextSize::of(x); let _ = BadRope(&[""]).text_len(); }