bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Show invisible delimeters (within comments) when pretty printing.

Browse source
This commit is contained in:
Nicholas Nethercote 2022-04-29 17:58:41 +10:00
parent baaa3b6829
commit 5022d764cf
17 changed files with 110 additions and 68 deletions
Download patch file Download diff file Expand all files Collapse all files

5
compiler/rustc_ast/src/token.rs
View file

@ -50,11 +50,12 @@ pub enum Delimiter {
Brace,
/// `[ ... ]`
Bracket,
/// `Ø ... Ø`
/// `/*«*/ ... /*»*/`
/// An invisible delimiter, that may, for example, appear around tokens coming from a
/// "macro variable" `$var`. It is important to preserve operator priorities in cases like
/// `$var * 3` where `$var` is `1 + 2`.
/// Invisible delimiters might not survive roundtrip of a token stream through a string.
/// Invisible delimiters are not directly writable in normal Rust code except as comments.
/// Therefore, they might not survive a roundtrip of a token stream through a string.
Invisible,
}