f57247c48c
Fixes #50159 This commit makes several improvements to AutoTraitFinder: * Call infcx.resolve_type_vars_if_possible before processing new predicates. This ensures that we eliminate inference variables wherever possible. * Process all nested obligations we get from a vtable, not just ones with depth=1. * The 'depth=1' check was a hack to work around issues processing certain predicates. The other changes in this commit allow us to properly process all predicates that we encounter, so the check is no longer necessary, * Ensure that we only display predicates *without* inference variables to the user, and only attempt to unify predicates that *have* an inference variable as their type. Additionally, the internal helper method is_of_param now operates directly on a type, rather than taking a Substs. This allows us to use the 'self_ty' method, rather than directly dealing with Substs.
This directory contains the source code of the rust project, including:
rustcand its testslibstd- Various submodules for tools, like rustdoc, rls, etc.
For more information on how various parts of the compiler work, see the rustc guide.
There is also useful content in the following READMEs, which are gradually being moved over to the guide:
- https://github.com/rust-lang/rust/tree/master/src/librustc/ty/query
- https://github.com/rust-lang/rust/tree/master/src/librustc/dep_graph
- https://github.com/rust-lang/rust/blob/master/src/librustc/infer/region_constraints
- https://github.com/rust-lang/rust/tree/master/src/librustc/infer/higher_ranked
- https://github.com/rust-lang/rust/tree/master/src/librustc/infer/lexical_region_resolve