From b6560e3ebb80a7a96b3c3598ecba232f799fe93f Mon Sep 17 00:00:00 2001
From: adamrk <ark.email@gmail.com>
Date: Tue, 28 Apr 2020 10:23:45 +0200
Subject: Treat comments beginning with four slashes as regular line comments

---
 crates/ra_syntax/src/ast.rs        | 15 +++++++++++++++
 crates/ra_syntax/src/ast/tokens.rs |  1 +
 2 files changed, 16 insertions(+)

(limited to 'crates/ra_syntax')

diff --git a/crates/ra_syntax/src/ast.rs b/crates/ra_syntax/src/ast.rs
index 7fca5661e..a716e525b 100644
--- a/crates/ra_syntax/src/ast.rs
+++ b/crates/ra_syntax/src/ast.rs
@@ -242,6 +242,21 @@ fn test_comments_preserve_trailing_whitespace() {
     );
 }
 
+#[test]
+fn test_four_slash_line_comment() {
+    let file = SourceFile::parse(
+        r#"
+        //// too many slashes to be a doc comment
+        /// doc comment
+        mod foo {}
+        "#,
+    )
+    .ok()
+    .unwrap();
+    let module = file.syntax().descendants().find_map(Module::cast).unwrap();
+    assert_eq!("doc comment", module.doc_comment_text().unwrap());
+}
+
 #[test]
 fn test_where_predicates() {
     fn assert_bound(text: &str, bound: Option<TypeBound>) {
diff --git a/crates/ra_syntax/src/ast/tokens.rs b/crates/ra_syntax/src/ast/tokens.rs
index 3865729b8..481813e38 100644
--- a/crates/ra_syntax/src/ast/tokens.rs
+++ b/crates/ra_syntax/src/ast/tokens.rs
@@ -48,6 +48,7 @@ pub enum CommentPlacement {
 const COMMENT_PREFIX_TO_KIND: &[(&str, CommentKind)] = {
     use {CommentPlacement::*, CommentShape::*};
     &[
+        ("////", CommentKind { shape: Line, doc: None }),
         ("///", CommentKind { shape: Line, doc: Some(Outer) }),
         ("//!", CommentKind { shape: Line, doc: Some(Inner) }),
         ("/**", CommentKind { shape: Block, doc: Some(Outer) }),
-- 
cgit v1.2.3


From 0bd7d81805df16c8d1f200b13e485f6dda22f104 Mon Sep 17 00:00:00 2001
From: adamrk <ark.email@gmail.com>
Date: Tue, 28 Apr 2020 21:13:37 +0200
Subject: Fix comment prefix method for four slash comments

---
 crates/ra_syntax/src/ast/tokens.rs | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

(limited to 'crates/ra_syntax')

diff --git a/crates/ra_syntax/src/ast/tokens.rs b/crates/ra_syntax/src/ast/tokens.rs
index 481813e38..74906d8a6 100644
--- a/crates/ra_syntax/src/ast/tokens.rs
+++ b/crates/ra_syntax/src/ast/tokens.rs
@@ -13,7 +13,12 @@ impl Comment {
     }
 
     pub fn prefix(&self) -> &'static str {
-        prefix_by_kind(self.kind())
+        for (prefix, k) in COMMENT_PREFIX_TO_KIND.iter() {
+            if *k == self.kind() && self.text().starts_with(prefix) {
+                return prefix;
+            }
+        }
+        unreachable!()
     }
 }
 
@@ -70,15 +75,6 @@ fn kind_by_prefix(text: &str) -> CommentKind {
     panic!("bad comment text: {:?}", text)
 }
 
-fn prefix_by_kind(kind: CommentKind) -> &'static str {
-    for (prefix, k) in COMMENT_PREFIX_TO_KIND.iter() {
-        if *k == kind {
-            return prefix;
-        }
-    }
-    unreachable!()
-}
-
 impl Whitespace {
     pub fn spans_multiple_lines(&self) -> bool {
         let text = self.text();
-- 
cgit v1.2.3