Rollup merge of #135882 - hkBst:master, r=estebank

simplify `similar_tokens` from `Option<Vec<_>>` to `&[_]`

All uses immediately invoke contains, so maybe a further simplification is possible.

2 files changed, 4 insertions, 7 deletions

diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs
index a5b73ce4098..ffd46f20767 100644
--- a/compiler/rustc_parse/src/parser/expr.rs
+++ b/compiler/rustc_parse/src/parser/expr.rs
@@ -3114,9 +3114,8 @@ impl<'a> Parser<'a> {
             let span_before_body = this.prev_token.span;
             let arm_body;
             let is_fat_arrow = this.check(exp!(FatArrow));
-            let is_almost_fat_arrow = TokenKind::FatArrow
-                .similar_tokens()
-                .is_some_and(|similar_tokens| similar_tokens.contains(&this.token.kind));
+            let is_almost_fat_arrow =
+                TokenKind::FatArrow.similar_tokens().contains(&this.token.kind);
 
             // this avoids the compiler saying that a `,` or `}` was expected even though
             // the pattern isn't a never pattern (and thus an arm body is required)
diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs
index 714a60cb179..faebb5a40bb 100644
--- a/compiler/rustc_parse/src/parser/mod.rs
+++ b/compiler/rustc_parse/src/parser/mod.rs
@@ -924,10 +924,8 @@ impl<'a> Parser<'a> {
 
                                 _ => {
                                     // Attempt to keep parsing if it was a similar separator.
-                                    if let Some(tokens) = exp.tok.similar_tokens() {
-                                        if tokens.contains(&self.token.kind) {
-                                            self.bump();
-                                        }
+                                    if exp.tok.similar_tokens().contains(&self.token.kind) {
+                                        self.bump();
                                     }
                                 }
                             }