6fd5cf51c1
For users looking at documentation through IDE popups, this gives them relevant information rather than the generic trait documentation wording “Performs the conversion”. For users reading the documentation for a specific type for any reason, this informs them when the conversion may allocate or copy significant memory versus when it is always a move or cheap copy. Notes on specific cases: * The new documentation for `From<T> for T` explains that it is not a conversion at all. * Also documented `impl<T, U> Into<U> for T where U: From<T>`, the other central blanket implementation of conversion. * I did not add documentation to conversions of a specific error type to a more general error type. * I did not add documentation to unstable code. This change was prepared by searching for the text "From<... for" and so may have missed some cases that for whatever reason did not match. I also looked for `Into` impls but did not find any worth documenting by the above criteria. |
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