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Index trait should provide get(&self, key: &Q) -> Option<&V> #1790

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solidsnack opened this issue Nov 14, 2016 · 2 comments
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Index trait should provide get(&self, key: &Q) -> Option<&V> #1790

solidsnack opened this issue Nov 14, 2016 · 2 comments
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T-libs-api Relevant to the library API team, which will review and decide on the RFC.

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@solidsnack
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  • Or a similar trait should exist and be provided by the standard indexable collections.

  • Or maybe there is a generic way to do this with indexable collections already, in which case it would be nice to see it documented alongside Index.

  • Or a Contains trait with contains(&self, key: &Q) -> bool can be used to similar effect.
@eddyb
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eddyb commented Nov 14, 2016 •
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Also see #1679.

@solidsnack
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Will #1679 / rust-lang/rust#35729 apply for BTreeMap and friends? It is unclear to me at first reading since the discussion there is in terms of slices.

@Centril Centril added the T-libs-api Relevant to the library API team, which will review and decide on the RFC. label Feb 23, 2018
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@eddyb @solidsnack @Centril