Module item_bounds

Structs

AssocTyToOpaque 🔒

MapAndCompressBoundVars 🔒

Given some where clause like for<'b, 'c> <Self as Trait<'a_identity>>::Gat<'b>: Bound<'c>, the mapping will map 'b back to the GAT’s 'b_identity. Then we need to compress the remaining bound var 'c to index 0.

Functions

associated_type_bounds 🔒

For associated types we include both bounds written on the type (type X: Trait) and predicates from the trait: where Self::X: Trait.

explicit_item_bounds 🔒

explicit_item_bounds_with_filter 🔒

explicit_item_self_bounds 🔒

impl_super_outlives 🔒

This exists as an optimization to compute only the supertraits of this impl’s trait that are outlives bounds.

item_bounds 🔒

item_non_self_bounds 🔒

This exists as an optimization to compute only the item bounds of the item that are not Self bounds.

item_self_bounds 🔒

opaque_type_bounds 🔒

Opaque types don’t inherit bounds from their parent: for return position impl trait it isn’t possible to write a suitable predicate on the containing function and for type-alias impl trait we don’t have a backwards compatibility issue.

remap_gat_vars_and_recurse_into_nested_projections 🔒

The code below is quite involved, so let me explain.