diff --git a/crates/mbe/src/syntax_bridge.rs b/crates/mbe/src/syntax_bridge.rs index 9d433b3b0bd2..cfab99da80bc 100644 --- a/crates/mbe/src/syntax_bridge.rs +++ b/crates/mbe/src/syntax_bridge.rs @@ -213,7 +213,7 @@ fn doc_comment_text(comment: &ast::Comment) -> SmolStr { // Quote the string // Note that `tt::Literal` expect an escaped string - let text = format!("{:?}", text.escape_debug().to_string()); + let text = format!("\"{}\"", text.escape_debug()); text.into() } diff --git a/crates/mbe/src/tests/expand.rs b/crates/mbe/src/tests/expand.rs index 8951f3813759..84f19d3e23ce 100644 --- a/crates/mbe/src/tests/expand.rs +++ b/crates/mbe/src/tests/expand.rs @@ -921,7 +921,7 @@ fn test_meta_doc_comments() { MultiLines Doc */ }"#, - "# [doc = \" Single Line Doc 1\"] # [doc = \"\\\\n MultiLines Doc\\\\n \"] fn bar () {}", + "# [doc = \" Single Line Doc 1\"] # [doc = \"\\n MultiLines Doc\\n \"] fn bar () {}", ); } @@ -944,7 +944,27 @@ fn test_meta_doc_comments_non_latin() { 莊生曉夢迷蝴蝶,望帝春心託杜鵑。 */ }"#, - "# [doc = \" 錦瑟無端五十弦,一弦一柱思華年。\"] # [doc = \"\\\\n 莊生曉夢迷蝴蝶,望帝春心託杜鵑。\\\\n \"] fn bar () {}", + "# [doc = \" 錦瑟無端五十弦,一弦一柱思華年。\"] # [doc = \"\\n 莊生曉夢迷蝴蝶,望帝春心託杜鵑。\\n \"] fn bar () {}", + ); +} + +#[test] +fn test_meta_doc_comments_escaped_characters() { + parse_macro( + r#" + macro_rules! foo { + ($(#[$ i:meta])+) => ( + $(#[$ i])+ + fn bar() {} + ) + } +"#, + ) + .assert_expand_items( + r#"foo! { + /// \ " ' + }"#, + r#"# [doc = " \\ \" \'"] fn bar () {}"#, ); }