[rustc.git] / src / test / ui / issues / issue-49934.rs

#![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 structs, enums and unions
    println!("Hello, world!");

    // fold_stmt (Semi)
    #[derive(Debug)] //~ ERROR `derive` may only be applied to structs, enums and unions
    "Hello, world!";

    // fold_stmt (Local)
    #[derive(Debug)] //~ ERROR `derive` may only be applied to structs, enums and unions
    let _ = "Hello, world!";

    // visit_expr
    let _ = #[derive(Debug)] "Hello, world!";
    //~^ ERROR `derive` may only be applied to structs, enums and unions

    let _ = [
        // filter_map_expr
        #[derive(Debug)] //~ ERROR `derive` may only be applied to structs, enums and unions
        "Hello, world!",
    ];
}
Commit	Line	Data
83c7162d	1	#![feature(stmt_expr_attributes)]
0531ce1d	2
0531ce1d XL	3	fn main() {
	4	// fold_stmt (Item)
	5	#[allow(dead_code)]
	6	#[derive(Debug)] // should not warn
	7	struct Foo;
	8
	9	// fold_stmt (Mac)
6a06907d	10	#[derive(Debug)] //~ ERROR `derive` may only be applied to structs, enums and unions
0531ce1d XL	11	println!("Hello, world!");
	12
	13	// fold_stmt (Semi)
6a06907d	14	#[derive(Debug)] //~ ERROR `derive` may only be applied to structs, enums and unions
0531ce1d XL	15	"Hello, world!";
	16
	17	// fold_stmt (Local)
6a06907d	18	#[derive(Debug)] //~ ERROR `derive` may only be applied to structs, enums and unions
0531ce1d XL	19	let _ = "Hello, world!";
0531ce1d XL	20
9fa01778	21	// visit_expr
83c7162d	22	let _ = #[derive(Debug)] "Hello, world!";
6a06907d	23	//~^ ERROR `derive` may only be applied to structs, enums and unions
83c7162d	24
0531ce1d	25	let _ = [
9fa01778	26	// filter_map_expr
6a06907d XL	27	#[derive(Debug)] //~ ERROR `derive` may only be applied to structs, enums and unions
6a06907d XL	28	"Hello, world!",
0531ce1d XL	29	];
0531ce1d XL	30	}