fix: emit error when fragment is MethodReceiverExpr and items is empty

2023-05-19 21:21:05 +08:00
parent 2d17294d18
commit 990b2899ad
3 changed files with 35 additions and 1 deletions
--- a/compiler/rustc_expand/src/expand.rs
+++ b/compiler/rustc_expand/src/expand.rs
@@ -722,7 +722,11 @@ impl<'a, 'b> MacroExpander<'a, 'b> {
                                    });
                                }
                            };
-                            if fragment_kind == AstFragmentKind::Expr && items.is_empty() {
+                            if matches!(
+                                fragment_kind,
+                                AstFragmentKind::Expr | AstFragmentKind::MethodReceiverExpr
+                            ) && items.is_empty()
+                            {
                                self.cx.emit_err(RemoveExprNotSupported { span });
                                fragment_kind.dummy(span)
                            } else {