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Diffstat (limited to 'crates/hir-ty/src/chalk_ext.rs')
-rw-r--r--crates/hir-ty/src/chalk_ext.rs4
1 files changed, 3 insertions, 1 deletions
diff --git a/crates/hir-ty/src/chalk_ext.rs b/crates/hir-ty/src/chalk_ext.rs
index 4a5533c648..4f0e9dbf1e 100644
--- a/crates/hir-ty/src/chalk_ext.rs
+++ b/crates/hir-ty/src/chalk_ext.rs
@@ -152,7 +152,7 @@ impl TyExt for Ty {
TyKind::FnDef(def, parameters) => {
let callable_def = db.lookup_intern_callable_def((*def).into());
let sig = db.callable_item_signature(callable_def);
- Some(sig.substitute(Interner, &parameters))
+ Some(sig.substitute(Interner, parameters))
}
TyKind::Closure(.., substs) => {
let sig_param = substs.at(Interner, 0).assert_ty_ref(Interner);
@@ -166,6 +166,8 @@ impl TyExt for Ty {
let trait_ref = match self.kind(Interner) {
// The principal trait bound should be the first element of the bounds. This is an
// invariant ensured by `TyLoweringContext::lower_dyn_trait()`.
+ // FIXME: dyn types may not have principal trait and we don't want to return auto trait
+ // here.
TyKind::Dyn(dyn_ty) => dyn_ty.bounds.skip_binders().interned().get(0).and_then(|b| {
match b.skip_binders() {
WhereClause::Implemented(trait_ref) => Some(trait_ref),