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Sign upimpl Clone for Buffer #111
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@bors-servo r+ |
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impl Clone for Buffer <!-- Reviewable:start --> This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/rust-harfbuzz/111) <!-- Reviewable:end -->
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Remove Clone impls for Buffer and Blob Reverts #111. I realized that allowing these types to be cloned makes it impossible to provide safe borrowed access to their contents, because one handle could mutate or clear the contents while they are borrowed through another handle. Rust code that needs multiple pointers to a single buffer or blob should use Rc/Arc or `&T` instead. <!-- Reviewable:start --> --- This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/rust-harfbuzz/113) <!-- Reviewable:end -->
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mbrubeck commentedMay 17, 2018
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edited by larsbergstrom
This change is