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-rw-r--r--crates/hir_ty/src/method_resolution.rs8
-rw-r--r--crates/hir_ty/src/tests/method_resolution.rs19
2 files changed, 26 insertions, 1 deletions
diff --git a/crates/hir_ty/src/method_resolution.rs b/crates/hir_ty/src/method_resolution.rs
index 5a6f0c67f..8a289f52a 100644
--- a/crates/hir_ty/src/method_resolution.rs
+++ b/crates/hir_ty/src/method_resolution.rs
@@ -720,7 +720,13 @@ fn transform_receiver_ty(
720 .push(self_ty.value.clone()) 720 .push(self_ty.value.clone())
721 .fill_with_unknown() 721 .fill_with_unknown()
722 .build(), 722 .build(),
723 AssocContainerId::ImplId(impl_id) => inherent_impl_substs(db, impl_id, &self_ty)?, 723 AssocContainerId::ImplId(impl_id) => {
724 let impl_substs = inherent_impl_substs(db, impl_id, &self_ty)?;
725 Substs::build_for_def(db, function_id)
726 .use_parent_substs(&impl_substs)
727 .fill_with_unknown()
728 .build()
729 }
724 AssocContainerId::ContainerId(_) => unreachable!(), 730 AssocContainerId::ContainerId(_) => unreachable!(),
725 }; 731 };
726 let sig = db.callable_item_signature(function_id.into()); 732 let sig = db.callable_item_signature(function_id.into());
diff --git a/crates/hir_ty/src/tests/method_resolution.rs b/crates/hir_ty/src/tests/method_resolution.rs
index 0f17ff151..a6a54e542 100644
--- a/crates/hir_ty/src/tests/method_resolution.rs
+++ b/crates/hir_ty/src/tests/method_resolution.rs
@@ -1087,3 +1087,22 @@ fn method_resolution_foreign_opaque_type() {
1087 "#]], 1087 "#]],
1088 ); 1088 );
1089} 1089}
1090
1091#[test]
1092fn method_with_allocator_box_self_type() {
1093 check_types(
1094 r#"
1095struct Slice<T> {}
1096struct Box<T, A> {}
1097
1098impl<T> Slice<T> {
1099 pub fn into_vec<A>(self: Box<Self, A>) { }
1100}
1101
1102fn main() {
1103 let foo: Slice<u32>;
1104 (foo.into_vec()); // we don't actually support arbitrary self types, but we shouldn't crash at least
1105} //^ {unknown}
1106"#,
1107 );
1108}