Merge #5475

5475: Support `Trait as _` imports r=matklad a=jonas-schievink

Fixes https://github.com/rust-analyzer/rust-analyzer/issues/2736

Co-authored-by: Jonas Schievink <[email protected]>

1 files changed, 22 insertions, 0 deletions

diff --git a/crates/ra_hir_ty/src/tests/traits.rs b/crates/ra_hir_ty/src/tests/traits.rs
index d3c4d3f2a..526e61caf 100644
--- a/crates/ra_hir_ty/src/tests/traits.rs
+++ b/crates/ra_hir_ty/src/tests/traits.rs
@@ -3089,3 +3089,25 @@ fn test() {
         "#,
     );
 }
+
+#[test]
+fn underscore_import() {
+    check_types(
+        r#"
+mod tr {
+    pub trait Tr {
+        fn method(&self) -> u8 { 0 }
+    }
+}
+
+struct Tr;
+impl crate::tr::Tr for Tr {}
+
+use crate::tr::Tr as _;
+fn test() {
+    Tr.method();
+  //^^^^^^^^^^^ u8
+}
+    "#,
+    );
+}