From 601dc50b5ae0f8c0120b429d3e1fb703a26d3d0b Mon Sep 17 00:00:00 2001
From: Jonas Schievink <jonas.schievink@ferrous-systems.com>
Date: Mon, 10 Jan 2022 16:55:53 +0100
Subject: [PATCH] Print a single ellipsis for any number of omitted types

---
 crates/hir_ty/src/display.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/crates/hir_ty/src/display.rs b/crates/hir_ty/src/display.rs
index 95d1550afc3..f02f4ac0247 100644
--- a/crates/hir_ty/src/display.rs
+++ b/crates/hir_ty/src/display.rs
@@ -151,6 +151,12 @@ pub fn write_joined<T: HirDisplay>(
                 write!(self, "{}", sep)?;
             }
             first = false;
+
+            // Abbreviate multiple omitted types with a single ellipsis.
+            if self.should_truncate() {
+                return write!(self, "{}", TYPE_HINT_TRUNCATION);
+            }
+
             e.hir_fmt(self)?;
         }
         Ok(())