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Document that `Display` entails `ToString` · Issue #92941 · rust-lang/rust · Git...
source link: https://github.com/rust-lang/rust/issues/92941
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I just answered a question on URLO about when to implement or not to implement Display, and I noticed that the docs on the Display trait are lacking.
In particular, I believe they should definitely point out that implementing Display will give a type a .to_string() method via the ToString trait. This is important to keep in mind when you’re designing an API; it’s also the reason why in the standard library Path doesn’t implement Display directly (but offers a .display() method): because converting Path to String is lossy or fallible, and an (implicitly) lossy to_string method would not fit the API.
@rustbot label A-docs, C-enhancement, T-libs-api
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