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-rw-r--r--crates/ra_syntax/src/ast.rs15
-rw-r--r--crates/ra_syntax/src/ast/tokens.rs17
2 files changed, 22 insertions, 10 deletions
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
@@ -243,6 +243,21 @@ fn test_comments_preserve_trailing_whitespace() {
243} 243}
244 244
245#[test] 245#[test]
246fn test_four_slash_line_comment() {
247 let file = SourceFile::parse(
248 r#"
249 //// too many slashes to be a doc comment
250 /// doc comment
251 mod foo {}
252 "#,
253 )
254 .ok()
255 .unwrap();
256 let module = file.syntax().descendants().find_map(Module::cast).unwrap();
257 assert_eq!("doc comment", module.doc_comment_text().unwrap());
258}
259
260#[test]
246fn test_where_predicates() { 261fn test_where_predicates() {
247 fn assert_bound(text: &str, bound: Option<TypeBound>) { 262 fn assert_bound(text: &str, bound: Option<TypeBound>) {
248 assert_eq!(text, bound.unwrap().syntax().text().to_string()); 263 assert_eq!(text, bound.unwrap().syntax().text().to_string());
diff --git a/crates/ra_syntax/src/ast/tokens.rs b/crates/ra_syntax/src/ast/tokens.rs
index 3865729b8..74906d8a6 100644
--- a/crates/ra_syntax/src/ast/tokens.rs
+++ b/crates/ra_syntax/src/ast/tokens.rs
@@ -13,7 +13,12 @@ impl Comment {
13 } 13 }
14 14
15 pub fn prefix(&self) -> &'static str { 15 pub fn prefix(&self) -> &'static str {
16 prefix_by_kind(self.kind()) 16 for (prefix, k) in COMMENT_PREFIX_TO_KIND.iter() {
17 if *k == self.kind() && self.text().starts_with(prefix) {
18 return prefix;
19 }
20 }
21 unreachable!()
17 } 22 }
18} 23}
19 24
@@ -48,6 +53,7 @@ pub enum CommentPlacement {
48const COMMENT_PREFIX_TO_KIND: &[(&str, CommentKind)] = { 53const COMMENT_PREFIX_TO_KIND: &[(&str, CommentKind)] = {
49 use {CommentPlacement::*, CommentShape::*}; 54 use {CommentPlacement::*, CommentShape::*};
50 &[ 55 &[
56 ("////", CommentKind { shape: Line, doc: None }),
51 ("///", CommentKind { shape: Line, doc: Some(Outer) }), 57 ("///", CommentKind { shape: Line, doc: Some(Outer) }),
52 ("//!", CommentKind { shape: Line, doc: Some(Inner) }), 58 ("//!", CommentKind { shape: Line, doc: Some(Inner) }),
53 ("/**", CommentKind { shape: Block, doc: Some(Outer) }), 59 ("/**", CommentKind { shape: Block, doc: Some(Outer) }),
@@ -69,15 +75,6 @@ fn kind_by_prefix(text: &str) -> CommentKind {
69 panic!("bad comment text: {:?}", text) 75 panic!("bad comment text: {:?}", text)
70} 76}
71 77
72fn prefix_by_kind(kind: CommentKind) -> &'static str {
73 for (prefix, k) in COMMENT_PREFIX_TO_KIND.iter() {
74 if *k == kind {
75 return prefix;
76 }
77 }
78 unreachable!()
79}
80
81impl Whitespace { 78impl Whitespace {
82 pub fn spans_multiple_lines(&self) -> bool { 79 pub fn spans_multiple_lines(&self) -> bool {
83 let text = self.text(); 80 let text = self.text();