rust/compiler/rustc_hir_analysis
Matthias Krüger 277df5e176
Rollup merge of #122527 - fmease:clean-up-hir-ty-lowering, r=compiler-errors
Clean up AstConv

Split off from #120926 to make it only contain the renaming & (doc) comment updates.
Any changes other than that which have accumulated over time are now part of this PR.
Let's be disciplined ;) Inspired by https://github.com/rust-lang/rust/pull/120926#issuecomment-1997984483.

---

* Remove `hir_trait_to_predicates`
  * Unused since #113671
* Inline `create_args_for_ast_trait_ref`
  * Only had a single call site
  * Having it as a separate method didn't gain us anything
* Use an if-let guard somewhere to avoid unwrapping
* Avoid explicit trait object lifetimes
  * More legible, stylistic-only (the updated code is 100% semantically identical)
  * Use explicitly elided lifetimes in impl headers, they get elaborated to distinct lifetimes
  * Make use of [object lifetime defaulting](https://doc.rust-lang.org/reference/lifetime-elision.html#default-trait-object-lifetimes) for a trait object type inside of a reference type somewhere
* Use preexisting dedicated method `ItemCtxt::to_ty` over `<dyn AstConv<'_>>::ast_ty_to_ty`
* Use preexisting dedicated method `AstConv::astconv` over explicit coercions
* Simplify the function signature of `create_args_for_ast_path` and of `check_generic_arg_count`
  * In both cases redundant information was passed rendering the call sites verbose and confusing
  * No perf impact (tested in [#120926](https://github.com/rust-lang/rust/pull/120926))
* Move diagnostic method `report_ambiguous_associated_type` from `astconv` to `astconv::errors`
  * The submodule `errors` exists specifically for that purpose
  * Use it to keep the main module clean & short
2024-03-15 10:14:56 +01:00
..
src Rollup merge of #122527 - fmease:clean-up-hir-ty-lowering, r=compiler-errors 2024-03-15 10:14:56 +01:00
Cargo.toml bump itertools to 0.12 2024-03-08 12:34:05 +03:00
messages.ftl Improve error message for opaque captures 2024-03-08 19:08:13 +00:00
README.md

For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.