Rust - AsRef usage
AsRef is useful for generic function on accepting specific reference such as str or Path as trait bounds.
Please see the below example.
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fn format_str(s: str) {
}
fn format_string(s: String) {
}
Above two function can be replaced by the below a single function with generic type which implement str reference.
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fn format<S: AsRef<str>> (s: S) {
let s_ref = s.as_ref()
}
https://doc.rust-lang.org/std/convert/trait.AsRef.html
https://www.philipdaniels.com/blog/2019/rust-api-design/