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Remove some unused methods, move some to types.rs

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This commit is contained in:
Florian Diebold 2021-04-05 21:29:20 +02:00
parent 738174671a
commit b443e5304e
2 changed files with 15 additions and 29 deletions
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29
crates/hir_ty/src/lib.rs
View File

@ -99,15 +99,6 @@ pub fn wrap_empty_binders<T>(value: T) -> Binders<T>
Binders::empty(&Interner, value.shifted_in_from(DebruijnIndex::ONE))
}
impl<T: TypeWalk> Binders<T> {
/// Substitutes all variables.
pub fn substitute(self, interner: &Interner, subst: &Substitution) -> T {
let (value, binders) = self.into_value_and_skipped_binders();
assert_eq!(subst.len(interner), binders.len(interner));
value.subst_bound_vars(subst)
}
}
pub fn make_only_type_binders<T>(num_vars: usize, value: T) -> Binders<T> {
Binders::new(
VariableKinds::from_iter(
@ -120,31 +111,11 @@ pub fn make_only_type_binders<T>(num_vars: usize, value: T) -> Binders<T> {
}
impl TraitRef {
pub fn self_type_parameter(&self, interner: &Interner) -> &Ty {
&self.substitution.at(interner, 0).assert_ty_ref(interner)
}
pub fn hir_trait_id(&self) -> TraitId {
from_chalk_trait_id(self.trait_id)
}
}
impl WhereClause {
pub fn is_implemented(&self) -> bool {
matches!(self, WhereClause::Implemented(_))
}
pub fn trait_ref(&self, db: &dyn HirDatabase) -> Option<TraitRef> {
match self {
WhereClause::Implemented(tr) => Some(tr.clone()),
WhereClause::AliasEq(AliasEq { alias: AliasTy::Projection(proj), .. }) => {
Some(proj.trait_ref(db))
}
WhereClause::AliasEq(_) => None,
}
}
}
impl<T> Canonical<T> {
pub fn new(value: T, kinds: impl IntoIterator<Item = TyVariableKind>) -> Self {
let kinds = kinds.into_iter().map(|tk| {

15
crates/hir_ty/src/types.rs
View File

@ -360,6 +360,15 @@ pub fn cloned(&self) -> Binders<T> {
}
}
impl<T: TypeWalk> Binders<T> {
/// Substitutes all variables.
pub fn substitute(self, interner: &Interner, subst: &Substitution) -> T {
let (value, binders) = self.into_value_and_skipped_binders();
assert_eq!(subst.len(interner), binders.len(interner));
value.subst_bound_vars(subst)
}
}
impl<T: std::fmt::Debug> std::fmt::Debug for Binders<T> {
fn fmt(&self, fmt: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
let Binders { ref binders, ref value } = *self;
@ -375,6 +384,12 @@ pub struct TraitRef {
pub substitution: Substitution,
}
impl TraitRef {
pub fn self_type_parameter(&self, interner: &Interner) -> &Ty {
&self.substitution.at(interner, 0).assert_ty_ref(interner)
}
}
/// Like `generics::WherePredicate`, but with resolved types: A condition on the
/// parameters of a generic item.
#[derive(Debug, Clone, PartialEq, Eq, Hash)]