Use more slice patterns inside the compiler

2024-08-07 12:41:49 +02:00
parent 60d146580c
commit c4c518d2d4
40 changed files with 191 additions and 221 deletions
--- a/compiler/rustc_parse/src/parser/expr.rs
+++ b/compiler/rustc_parse/src/parser/expr.rs
@@ -694,12 +694,12 @@ impl<'a> Parser<'a> {
                        // `foo: `
                        ExprKind::Path(None, ast::Path { segments, .. }),
                        token::Ident(kw::For | kw::Loop | kw::While, IdentIsRaw::No),
-                    ) if segments.len() == 1 => {
+                    ) if let [segment] = segments.as_slice() => {
                        let snapshot = self.create_snapshot_for_diagnostic();
                        let label = Label {
                            ident: Ident::from_str_and_span(
-                                &format!("'{}", segments[0].ident),
-                                segments[0].ident.span,
+                                &format!("'{}", segment.ident),
+                                segment.ident.span,
                            ),
                        };
                        match self.parse_expr_labeled(label, false) {