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Implements a lint to prevent implementation of Hash, Borrow<str> and Borrow<[u8]> as it breaks Borrow<T> "semantics". According to the book, types that implement Borrow<A> and Borrow<B> must ensure equality of borrow results under Eq,Ord and Hash. > In particular Eq, Ord and Hash must be equivalent for borrowed and owned values: x.borrow() == y.borrow() should give the same result as x == y. In the same way, hash(x) == hash(x as Borrow<[u8]>) != hash(x as Borrow<str>). changelog: newlint [`impl_hash_with_borrow_str_and_bytes`] |
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| README.md | ||