error: expected one of `)` or `,`, found `(` | |
--> $DIR/test3.rs:15:27 | |
| | |
LL | struct S3(pub($t) ()); | |
| ^ expected one of `)` or `,` here | |
... | |
LL | define_struct! { foo } | |
| ---------------------- in this macro invocation | |
error: aborting due to previous error | |