From 9f238930f1969731869c89956414f4b160b180c0 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Thu, 22 Aug 2019 15:28:08 +0300
Subject: Don't add `?` bounds as real bounds

closes #1709
---
 crates/ra_syntax/src/ast/extensions.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'crates/ra_syntax/src')

diff --git a/crates/ra_syntax/src/ast/extensions.rs b/crates/ra_syntax/src/ast/extensions.rs
index 2a59cf653..efe261fc2 100644
--- a/crates/ra_syntax/src/ast/extensions.rs
+++ b/crates/ra_syntax/src/ast/extensions.rs
@@ -382,6 +382,18 @@ impl ast::WherePred {
     }
 }
 
+impl ast::TypeBound {
+    pub fn question_mark_token(&self) -> Option<SyntaxToken> {
+        self.syntax()
+            .children_with_tokens()
+            .filter_map(|it| it.into_token())
+            .find(|it| it.kind() == T![?])
+    }
+    pub fn has_question_mark(&self) -> bool {
+        self.question_mark_token().is_some()
+    }
+}
+
 impl ast::TraitDef {
     pub fn is_auto(&self) -> bool {
         self.syntax().children_with_tokens().any(|t| t.kind() == T![auto])
-- 
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