From 77cfc9b3921dfb9ce0df891a3b6be3e9cb3da656 Mon Sep 17 00:00:00 2001
From: Lukas Wirth <lukastw97@gmail.com>
Date: Sat, 1 Oct 2022 00:21:29 +0200
Subject: [PATCH] Fix type alias hovers not rendering generic parameters

---
 crates/hir/src/display.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/crates/hir/src/display.rs b/crates/hir/src/display.rs
index 0e29c52ade6..27b2f445d73 100644
--- a/crates/hir/src/display.rs
+++ b/crates/hir/src/display.rs
@@ -492,6 +492,9 @@ fn hir_fmt(&self, f: &mut HirFormatter<'_>) -> Result<(), HirDisplayError> {
         write_visibility(self.module(f.db).id, self.visibility(f.db), f)?;
         let data = f.db.type_alias_data(self.id);
         write!(f, "type {}", data.name)?;
+        let def_id = GenericDefId::TypeAliasId(self.id);
+        write_generic_params(def_id, f)?;
+        write_where_clause(def_id, f)?;
         if !data.bounds.is_empty() {
             f.write_str(": ")?;
             f.write_joined(&data.bounds, " + ")?;