From 99e6438660d665c9aa4d2831560ba2287becb13f Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Tue, 2 Apr 2019 10:34:34 +0300
Subject: allow empty doc comments

---
 crates/ra_syntax/src/ast/traits.rs | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'crates/ra_syntax/src/ast')

diff --git a/crates/ra_syntax/src/ast/traits.rs b/crates/ra_syntax/src/ast/traits.rs
index f9021d7bf..43d1509fa 100644
--- a/crates/ra_syntax/src/ast/traits.rs
+++ b/crates/ra_syntax/src/ast/traits.rs
@@ -107,11 +107,13 @@ pub trait DocCommentsOwner: AstNode {
     /// Returns the textual content of a doc comment block as a single string.
     /// That is, strips leading `///` (+ optional 1 character of whitespace)
     /// and joins lines.
-    fn doc_comment_text(&self) -> Option<std::string::String> {
+    fn doc_comment_text(&self) -> Option<String> {
+        let mut has_comments = false;
         let docs = self
             .doc_comments()
             .filter(|comment| comment.is_doc_comment())
             .map(|comment| {
+                has_comments = true;
                 let prefix_len = comment.prefix().len();
 
                 let line = comment.text().as_str();
@@ -128,10 +130,10 @@ pub trait DocCommentsOwner: AstNode {
             })
             .join("\n");
 
-        if docs.is_empty() {
-            None
-        } else {
+        if has_comments {
             Some(docs)
+        } else {
+            None
         }
     }
 }
-- 
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