Have std::string::ToString for X automatically provide std::convert::From<X> for String
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breaking-change
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Description
Is there a good reason the following can't be done?
impl<T> std::convert::From<T> for std::string::String where T: std::string::ToString {
fn from(t: T) -> Self {
t.to_string()
}
The only thing I can think of is if the value of T converted to String has a different meaning of the value of T.display() (as that's where a lot of the ToString implementations are coming from) such that you might want different behavior there.
Being able to do something like s: String = 42.into() anywhere would be nice.
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Research direction
The issue names no files, tests, or entry points. Start by evaluating the proposed blanket From implementation and its API implications; done means reaching a documented decision on whether this conversion should be added.
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Assessment
- Tech stack
- rust
- Domain
- backend-api-design
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 18/100