diff options
Diffstat (limited to 'compiler/rustc_parse_format/src')
| -rw-r--r-- | compiler/rustc_parse_format/src/lib.rs | 83 |
1 files changed, 37 insertions, 46 deletions
diff --git a/compiler/rustc_parse_format/src/lib.rs b/compiler/rustc_parse_format/src/lib.rs index 9a45a392b77..372ebe3fdd3 100644 --- a/compiler/rustc_parse_format/src/lib.rs +++ b/compiler/rustc_parse_format/src/lib.rs @@ -424,12 +424,13 @@ impl<'a> Parser<'a> { /// returned, otherwise the character is consumed and the current position is /// returned. fn consume_pos(&mut self, ch: char) -> Option<(Range<usize>, usize)> { - if let Some((r, i, c)) = self.peek() { - if ch == c { - self.input_vec_index += 1; - return Some((r, i)); - } + if let Some((r, i, c)) = self.peek() + && ch == c + { + self.input_vec_index += 1; + return Some((r, i)); } + None } @@ -549,20 +550,17 @@ impl<'a> Parser<'a> { let word = self.word(); // Recover from `r#ident` in format strings. - // FIXME: use a let chain - if word == "r" { - if let Some((r, _, '#')) = self.peek() { - if self - .peek_ahead() - .is_some_and(|(_, _, c)| rustc_lexer::is_id_start(c)) - { - self.input_vec_index += 1; - let prefix_end = r.end; - let word = self.word(); - let prefix_span = start..prefix_end; - let full_span = - start..self.input_vec_index2range(self.input_vec_index).start; - self.errors.insert(0, ParseError { + if word == "r" + && let Some((r, _, '#')) = self.peek() + && self.peek_ahead().is_some_and(|(_, _, c)| rustc_lexer::is_id_start(c)) + { + self.input_vec_index += 1; + let prefix_end = r.end; + let word = self.word(); + let prefix_span = start..prefix_end; + let full_span = + start..self.input_vec_index2range(self.input_vec_index).start; + self.errors.insert(0, ParseError { description: "raw identifiers are not supported".to_owned(), note: Some("identifiers in format strings can be keywords and don't need to be prefixed with `r#`".to_string()), label: "raw identifier used here".to_owned(), @@ -570,9 +568,7 @@ impl<'a> Parser<'a> { secondary_label: None, suggestion: Suggestion::RemoveRawIdent(prefix_span), }); - return Some(ArgumentNamed(word)); - } - } + return Some(ArgumentNamed(word)); } Some(ArgumentNamed(word)) @@ -620,12 +616,10 @@ impl<'a> Parser<'a> { } // fill character - if let Some((r, _, c)) = self.peek() { - if let Some((_, _, '>' | '<' | '^')) = self.peek_ahead() { - self.input_vec_index += 1; - spec.fill = Some(c); - spec.fill_span = Some(r); - } + if let (Some((r, _, c)), Some((_, _, '>' | '<' | '^'))) = (self.peek(), self.peek_ahead()) { + self.input_vec_index += 1; + spec.fill = Some(c); + spec.fill_span = Some(r); } // Alignment if self.consume('<') { @@ -703,24 +697,21 @@ impl<'a> Parser<'a> { } } else if let Some((range, _)) = self.consume_pos('?') { spec.ty = "?"; - if let Some((r, _, c)) = self.peek() { - match c { - '#' | 'x' | 'X' => self.errors.insert( - 0, - ParseError { - description: format!("expected `}}`, found `{c}`"), - note: None, - label: "expected `'}'`".into(), - span: r.clone(), - secondary_label: None, - suggestion: Suggestion::ReorderFormatParameter( - range.start..r.end, - format!("{c}?"), - ), - }, - ), - _ => (), - } + if let Some((r, _, c @ ('#' | 'x' | 'X'))) = self.peek() { + self.errors.insert( + 0, + ParseError { + description: format!("expected `}}`, found `{c}`"), + note: None, + label: "expected `'}'`".into(), + span: r.clone(), + secondary_label: None, + suggestion: Suggestion::ReorderFormatParameter( + range.start..r.end, + format!("{c}?"), + ), + }, + ); } } else { spec.ty = self.word(); |