Image caption, Two episodes of The Daleks' Master Plan from 1965 have been discovered among an amateur collector's estate
If we now revisit the hash table problem, the solution provided by CGP is straightforward: we can first use the #[cgp_component] macro to generate the provider trait and blanket implementations for the Hash trait. We then use the #[cgp_impl] macro to implement named providers that can overlap with no restriction.
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Macros can mix HAL English with native 1-2-3 macro commands.