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Binders::wrap_empty -> wrap_empty_binders

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This commit is contained in:
Florian Diebold 2021-04-05 21:25:40 +02:00
parent 2f5a77658b
commit 738174671a
3 changed files with 12 additions and 16 deletions
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12
crates/hir_ty/src/lib.rs
View file

@ -92,13 +92,11 @@ pub fn param_idx(db: &dyn HirDatabase, id: TypeParamId) -> Option<usize> {
generics(db.upcast(), id.parent).param_idx(id) generics(db.upcast(), id.parent).param_idx(id)
} }
impl<T> Binders<T> { pub fn wrap_empty_binders<T>(value: T) -> Binders<T>
pub fn wrap_empty(value: T) -> Self where
where T: TypeWalk,
T: TypeWalk, {
{ Binders::empty(&Interner, value.shifted_in_from(DebruijnIndex::ONE))
Binders::empty(&Interner, value.shifted_in_from(DebruijnIndex::ONE))
}
} }
impl<T: TypeWalk> Binders<T> { impl<T: TypeWalk> Binders<T> {

8
crates/hir_ty/src/lower.rs
View file

@ -384,7 +384,9 @@ impl<'a> TyLoweringContext<'a> {
1, 1,
QuantifiedWhereClauses::from_iter( QuantifiedWhereClauses::from_iter(
&Interner, &Interner,
Some(Binders::wrap_empty(WhereClause::Implemented(trait_ref))), Some(crate::wrap_empty_binders(WhereClause::Implemented(
trait_ref,
))),
), ),
), ),
}; };
@ -720,7 +722,7 @@ impl<'a> TyLoweringContext<'a> {
let trait_ref = match bound { let trait_ref = match bound {
TypeBound::Path(path) => { TypeBound::Path(path) => {
bindings = self.lower_trait_ref_from_path(path, Some(self_ty)); bindings = self.lower_trait_ref_from_path(path, Some(self_ty));
bindings.clone().map(WhereClause::Implemented).map(|b| Binders::wrap_empty(b)) bindings.clone().map(WhereClause::Implemented).map(|b| crate::wrap_empty_binders(b))
} }
TypeBound::Lifetime(_) => None, TypeBound::Lifetime(_) => None,
TypeBound::Error => None, TypeBound::Error => None,
@ -767,7 +769,7 @@ impl<'a> TyLoweringContext<'a> {
let ty = self.lower_ty(type_ref); let ty = self.lower_ty(type_ref);
let alias_eq = let alias_eq =
AliasEq { alias: AliasTy::Projection(projection_ty.clone()), ty }; AliasEq { alias: AliasTy::Projection(projection_ty.clone()), ty };
preds.push(Binders::wrap_empty(WhereClause::AliasEq(alias_eq))); preds.push(crate::wrap_empty_binders(WhereClause::AliasEq(alias_eq)));
} }
for bound in &binding.bounds { for bound in &binding.bounds {
preds.extend(self.lower_type_bound( preds.extend(self.lower_type_bound(

8
crates/hir_ty/src/traits/chalk.rs
View file

@ -246,8 +246,8 @@ impl<'a> chalk_solve::RustIrDatabase<Interner> for ChalkContext<'a> {
let bound = OpaqueTyDatumBound { let bound = OpaqueTyDatumBound {
bounds: make_binders( bounds: make_binders(
vec![ vec![
wrap_in_empty_binders(impl_bound).to_chalk(self.db), crate::wrap_empty_binders(impl_bound).to_chalk(self.db),
wrap_in_empty_binders(proj_bound).to_chalk(self.db), crate::wrap_empty_binders(proj_bound).to_chalk(self.db),
], ],
1, 1,
), ),
@ -723,7 +723,3 @@ impl From<crate::db::InternedClosureId> for chalk_ir::ClosureId<Interner> {
chalk_ir::ClosureId(id.as_intern_id()) chalk_ir::ClosureId(id.as_intern_id())
} }
} }
fn wrap_in_empty_binders<T: crate::TypeWalk>(value: T) -> crate::Binders<T> {
crate::Binders::wrap_empty(value)
}