Module rustc_traits::chalk::db
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Provides the RustIrDatabase
implementation for chalk-solve
The purpose of the chalk_solve::RustIrDatabase
is to get data about
specific types, such as bounds, where clauses, or fields. This file contains
the minimal logic to assemble the types for chalk-solve
by calling out to
either the TyCtxt
(for information about types) or
crate::chalk::lowering
(to lower rustc types into Chalk types).
Structs
Functions
Creates an
InternalSubsts
that maps each generic parameter to a higher-ranked
var bound at index 0
. For types, we use a BoundVar
index equal to
the type parameter index. For regions, we use the BoundRegionKind::BrNamed
variant (which has a DefId
).