d3d4fd9312
Query keys must be stably hashable. Currently this requirement is expressed as a where-clause on `impl QueryDispatcher for SemiDynamicQueryDispatcher` and a where-clause on `create_deferred_query_stack_frame`. This commit removes those where-clause bounds and adds a single bound to `QueryCache::Key`, which already has some other bounds. I.e. it consolidates the bounds. It also gives them a name (`QueryCacheKey`) to avoid repeating them. There is also a related `Key` trait in `rustc_middle`; it should probably be merged with `QueryCacheKey` in the future, but not today. This cleanup helps with the next two commits, which do bigger rearrangements, and where the where-clauses caused me some difficulties. |
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| Cargo.toml | ||