Add test of None-delimited group containing loop in match arm

dtolnay · Dec 11, 2023 · 2781584 · 2781584
1 parent d332928
commit 2781584
Showing 1 changed file with 35 additions and 1 deletion.
diff --git a/tests/test_expr.rs b/tests/test_expr.rs
@@ -235,7 +235,6 @@ fn test_macro_variable_match_arm() {
     // mimics the token stream corresponding to `match v { _ => $expr }`
     let expr = Group::new(Delimiter::None, quote! { #[a] () });
     let tokens = quote!(match v { _ => #expr });
-
     snapshot!(tokens as Expr, @r###"
     Expr::Match {
         expr: Expr::Path {
@@ -270,6 +269,41 @@ fn test_macro_variable_match_arm() {
         ],
     }
     "###);
+
+    let expr = Group::new(Delimiter::None, quote!(loop {} + 1));
+    let tokens = quote!(match v { _ => #expr });
+    // FIXME
+    snapshot!(tokens as Expr, @r###"
+    Expr::Match {
+        expr: Expr::Path {
+            path: Path {
+                segments: [
+                    PathSegment {
+                        ident: "v",
+                    },
+                ],
+            },
+        },
+        arms: [
+            Arm {
+                pat: Pat::Wild,
+                body: Expr::Group {
+                    expr: Expr::Binary {
+                        left: Expr::Loop {
+                            body: Block {
+                                stmts: [],
+                            },
+                        },
+                        op: BinOp::Add,
+                        right: Expr::Lit {
+                            lit: 1,
+                        },
+                    },
+                },
+            },
+        ],
+    }
+    "###);
 }
 
 // https://github.com/dtolnay/syn/issues/1019