| #![feature(stmt_expr_attributes)] |
| |
| fn main() { |
| // fold_stmt (Item) |
| #[allow(dead_code)] |
| #[derive(Debug)] // should not warn |
| struct Foo; |
| |
| // fold_stmt (Mac) |
| #[derive(Debug)] //~ ERROR `derive` may only be applied to `struct`s, `enum`s and `union`s |
| println!("Hello, world!"); |
| |
| // fold_stmt (Semi) |
| #[derive(Debug)] //~ ERROR `derive` may only be applied to `struct`s, `enum`s and `union`s |
| "Hello, world!"; |
| |
| // fold_stmt (Local) |
| #[derive(Debug)] //~ ERROR `derive` may only be applied to `struct`s, `enum`s and `union`s |
| let _ = "Hello, world!"; |
| |
| // visit_expr |
| let _ = #[derive(Debug)] "Hello, world!"; |
| //~^ ERROR `derive` may only be applied to `struct`s, `enum`s and `union`s |
| |
| let _ = [ |
| // filter_map_expr |
| #[derive(Debug)] //~ ERROR `derive` may only be applied to `struct`s, `enum`s and `union`s |
| "Hello, world!", |
| ]; |
| } |
