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-rw-r--r--crates/ra_assists/src/assists/raw_string.rs37
1 files changed, 36 insertions, 1 deletions
diff --git a/crates/ra_assists/src/assists/raw_string.rs b/crates/ra_assists/src/assists/raw_string.rs
index e57f24e7c..dd8db0b7d 100644
--- a/crates/ra_assists/src/assists/raw_string.rs
+++ b/crates/ra_assists/src/assists/raw_string.rs
@@ -28,7 +28,25 @@ pub(crate) fn make_raw_string(mut ctx: AssistCtx<impl HirDatabase>) -> Option<As
28 if error.is_err() { 28 if error.is_err() {
29 eprintln!("Error unescaping string"); 29 eprintln!("Error unescaping string");
30 } else { 30 } else {
31 edit.replace(literal.syntax().text_range(), format!("r#\"{}\"#", unescaped)); 31 let mut max_hash_streak = 0;
32 unescaped.chars().fold(0, |acc, c| {
33 if c == '#' {
34 acc + 1
35 } else {
36 if acc > max_hash_streak {
37 max_hash_streak = acc;
38 }
39 0
40 }
41 });
42 let mut hashes = String::with_capacity(max_hash_streak + 1);
43 for _ in 0..hashes.capacity() {
44 hashes.push('#');
45 }
46 edit.replace(
47 literal.syntax().text_range(),
48 format!("r{}\"{}\"{}", hashes, unescaped, hashes),
49 );
32 } 50 }
33 }); 51 });
34 ctx.build() 52 ctx.build()
@@ -137,6 +155,23 @@ string"#;
137 } 155 }
138 156
139 #[test] 157 #[test]
158 fn make_raw_string_hashes_inside_works() {
159 check_assist(
160 make_raw_string,
161 r###"
162 fn f() {
163 let s = <|>"#random##\nstring";
164 }
165 "###,
166 r####"
167 fn f() {
168 let s = <|>r###"#random##
169string"###;
170 }
171 "####,
172 )
173 }
174 #[test]
140 fn make_raw_string_nothing_to_unescape_works() { 175 fn make_raw_string_nothing_to_unescape_works() {
141 check_assist( 176 check_assist(
142 make_raw_string, 177 make_raw_string,