1 files changed, 21 insertions, 16 deletions
diff --git a/compiler/rustc_ast_pretty/src/pprust/state/expr.rs b/compiler/rustc_ast_pretty/src/pprust/state/expr.rs
index 45a55e20ca7..d7dbc7ac035 100644
--- a/compiler/rustc_ast_pretty/src/pprust/state/expr.rs
+++ b/compiler/rustc_ast_pretty/src/pprust/state/expr.rs
@@ -631,28 +631,33 @@ impl<'a> State<'a> {
             self.print_expr(e);
             self.space();
         }
-        self.word_space("=>");
 
-        match &arm.body.kind {
-            ast::ExprKind::Block(blk, opt_label) => {
-                if let Some(label) = opt_label {
-                    self.print_ident(label.ident);
-                    self.word_space(":");
-                }
+        if let Some(body) = &arm.body {
+            self.word_space("=>");
+
+            match &body.kind {
+                ast::ExprKind::Block(blk, opt_label) => {
+                    if let Some(label) = opt_label {
+                        self.print_ident(label.ident);
+                        self.word_space(":");
+                    }
 
-                // The block will close the pattern's ibox.
-                self.print_block_unclosed_indent(blk);
+                    // The block will close the pattern's ibox.
+                    self.print_block_unclosed_indent(blk);
 
-                // If it is a user-provided unsafe block, print a comma after it.
-                if let BlockCheckMode::Unsafe(ast::UserProvided) = blk.rules {
+                    // If it is a user-provided unsafe block, print a comma after it.
+                    if let BlockCheckMode::Unsafe(ast::UserProvided) = blk.rules {
+                        self.word(",");
+                    }
+                }
+                _ => {
+                    self.end(); // Close the ibox for the pattern.
+                    self.print_expr(body);
                     self.word(",");
                 }
             }
-            _ => {
-                self.end(); // Close the ibox for the pattern.
-                self.print_expr(&arm.body);
-                self.word(",");
-            }
+        } else {
+            self.word(",");
         }
         self.end(); // Close enclosing cbox.
     }