From 1c1d900d0bb71b2611b2a6c72d3f0f31cbcc3b06 Mon Sep 17 00:00:00 2001
From: Jake Heinz <jh@discordapp.com>
Date: Tue, 8 Feb 2022 22:48:34 +0000
Subject: [PATCH] [ide_completion] render if a function is async/const/unsafe
 in completion details

---
 crates/ide_completion/src/render/function.rs | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/crates/ide_completion/src/render/function.rs b/crates/ide_completion/src/render/function.rs
index 20c7fe657ce..c1908ba0c84 100644
--- a/crates/ide_completion/src/render/function.rs
+++ b/crates/ide_completion/src/render/function.rs
@@ -110,7 +110,19 @@ fn render(
 
 fn detail(db: &dyn HirDatabase, func: hir::Function) -> String {
     let ret_ty = func.ret_type(db);
-    let mut detail = format!("fn({})", params_display(db, func));
+    let mut detail = String::new();
+
+    if func.is_const(db) {
+        format_to!(detail, "const ");
+    }
+    if func.is_async(db) {
+        format_to!(detail, "async ");
+    }
+    if func.is_unsafe(db) {
+        format_to!(detail, "unsafe ");
+    }
+
+    format_to!(detail, "fn({})", params_display(db, func));
     if !ret_ty.is_unit() {
         format_to!(detail, " -> {}", ret_ty.display(db));
     }