Re-add support for parsing (and pretty-printing) inner-attributes within body of a `match`.

In other words, we can do `match EXPR { #![inner_attr] ARM_1 ARM_2 ... }` again.

I believe this unbreaks the only four crates that crater flagged as broken by PR 83312.

(I am putting this up so that the lang-team can check it out and decide whether
it changes their mind about what to do regarding PR 83312.)

1 files changed, 2 insertions, 1 deletions

diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs
index 56c97b59476..2e16d850b53 100644
--- a/compiler/rustc_parse/src/parser/expr.rs
+++ b/compiler/rustc_parse/src/parser/expr.rs
@@ -1947,7 +1947,7 @@ impl<'a> Parser<'a> {
     }
 
     /// Parses a `match ... { ... }` expression (`match` token already eaten).
-    fn parse_match_expr(&mut self, attrs: AttrVec) -> PResult<'a, P<Expr>> {
+    fn parse_match_expr(&mut self, mut attrs: AttrVec) -> PResult<'a, P<Expr>> {
         let match_span = self.prev_token.span;
         let lo = self.prev_token.span;
         let scrutinee = self.parse_expr_res(Restrictions::NO_STRUCT_LITERAL, None)?;
@@ -1962,6 +1962,7 @@ impl<'a> Parser<'a> {
             }
             return Err(e);
         }
+        attrs.extend(self.parse_inner_attributes()?);
 
         let mut arms: Vec<Arm> = Vec::new();
         while self.token != token::CloseDelim(token::Brace) {