d28678e621
We have four macros for generating trivial traversal (fold/visit) and lift impls. - `rustc_ir::TrivialTypeTraversalImpls` - `rustc_middle::TrivialTypeTraversalImpls` - `rustc_middle::TrivialLiftImpls` - `rustc_middle::TrivialTypeTraversalAndLiftImpls` The first two are very similar. The last one just combines the second and third one. The macros themselves are ok, but their use is a mess. This commit does the following. - Removes types that no longer need a lift and/or traversal impl from the macro calls. - Consolidates the macro calls into the smallest number of calls possible, with each one mentioning as many types as possible. - Orders the types within those macro calls alphabetically, and makes the module qualification more consistent. - Eliminates `rustc_middle::mir::type_foldable`, because the macro calls were merged and the manual `TypeFoldable` impls are better placed in `structural_impls.rs`, alongside all the other ones. This makes the code more concise. Moving forward, it also makes it more obvious where new types should be added. |
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This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.
Why Rust?
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Performance: Fast and memory-efficient, suitable for critical services, embedded devices, and easily integrated with other languages.
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Reliability: Our rich type system and ownership model ensure memory and thread safety, reducing bugs at compile-time.
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