From ef416e0154767619fcbfa0d1682b28bd338a8ce9 Mon Sep 17 00:00:00 2001
From: oxalica <oxalicc@pm.me>
Date: Sun, 14 Mar 2021 20:03:39 +0800
Subject: Impl HirDisplay for function hover message

---
 crates/hir_def/src/path.rs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'crates/hir_def/src')

diff --git a/crates/hir_def/src/path.rs b/crates/hir_def/src/path.rs
index 0e60dc2b6..8c923bb7b 100644
--- a/crates/hir_def/src/path.rs
+++ b/crates/hir_def/src/path.rs
@@ -9,7 +9,10 @@ use std::{
 
 use crate::{body::LowerCtx, type_ref::LifetimeRef};
 use base_db::CrateId;
-use hir_expand::{hygiene::Hygiene, name::Name};
+use hir_expand::{
+    hygiene::Hygiene,
+    name::{name, Name},
+};
 use syntax::ast;
 
 use crate::{
@@ -209,6 +212,12 @@ impl Path {
         };
         Some(res)
     }
+
+    pub fn is_self_type(&self) -> bool {
+        self.type_anchor.is_none()
+            && self.generic_args == &[None]
+            && self.mod_path.as_ident() == Some(&name!(Self))
+    }
 }
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
-- 
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