bjoernager/rust
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Rollup merge of #124051 - dtolnay:emptyset, r=compiler-errors

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Fix empty-set symbol in comments

The symbol in the original code is U+00D8 "LATIN CAPITAL LETTER O WITH STROKE" (https://en.wikipedia.org/wiki/%C3%98) which is an uppercase letter in Danish, Norwegian, Faroese, and Southern Sámi alphabets.

The symbol that was intended is U+2205 "EMPTY SET" (https://en.wikipedia.org/wiki/Empty_set#Notation).

| Before | After |
|---|---|
| ![Screenshot from 2024-04-16 18-25-01](9b8b0624-cfa5-4b89-84e5-4c2b39c2cb8f) | ![Screenshot from 2024-04-16 18-25-05](6f6b34c3-0e47-4ba0-856d-be1dc164c94c) |
This commit is contained in:
Matthias Krüger 2024-04-17 05:44:54 +02:00 • committed by GitHub
commit d783ea0c0e
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3 changed files with 3 additions and 3 deletions
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2
compiler/rustc_ast/src/token.rs
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@ -51,7 +51,7 @@ 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`.

2
compiler/rustc_parse/src/parser/item.rs
View file

@ -1063,7 +1063,7 @@ impl<'a> Parser<'a> {
/// Parses a `UseTreeKind::Nested(list)`.
///
/// ```text
/// USE_TREE_LIST = Ø | (USE_TREE `,`)* USE_TREE [`,`]
/// USE_TREE_LIST = ∅ | (USE_TREE `,`)* USE_TREE [`,`]
/// ```
fn parse_use_tree_list(&mut self) -> PResult<'a, ThinVec<(UseTree, ast::NodeId)>> {
self.parse_delim_comma_seq(Delimiter::Brace, |p| {