bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/hir-ty/src/tests/traits.rs')
-rw-r--r--crates/hir-ty/src/tests/traits.rs44
1 files changed, 44 insertions, 0 deletions
diff --git a/crates/hir-ty/src/tests/traits.rs b/crates/hir-ty/src/tests/traits.rs
index 5f5cd79451..542df8b346 100644
--- a/crates/hir-ty/src/tests/traits.rs
+++ b/crates/hir-ty/src/tests/traits.rs
@@ -4434,3 +4434,47 @@ fn test(v: S<i32>) {
"#,
);
}
+
+#[test]
+fn associated_type_in_argument() {
+ check(
+ r#"
+ trait A {
+ fn m(&self) -> i32;
+ }
+
+ fn x<T: B>(k: &<T as B>::Ty) {
+ k.m();
+ }
+
+ struct X;
+ struct Y;
+
+ impl A for X {
+ fn m(&self) -> i32 {
+ 8
+ }
+ }
+
+ impl A for Y {
+ fn m(&self) -> i32 {
+ 32
+ }
+ }
+
+ trait B {
+ type Ty: A;
+ }
+
+ impl B for u16 {
+ type Ty = X;
+ }
+
+ fn ttt() {
+ let inp = Y;
+ x::<u16>(&inp);
+ //^^^^ expected &X, got &Y
+ }
+ "#,
+ );
+}