[rustc.git] / src / test / ui / feature-gate / issue-43106-gating-of-derive.rs

// `#![derive]` raises errors when it occurs at contexts other than ADT
// definitions.

#[derive(Debug)]
//~^ ERROR `derive` may only be applied to structs, enums and unions
mod derive {
    mod inner { #![derive(Debug)] }
    //~^ ERROR `derive` may only be applied to structs, enums and unions

    #[derive(Debug)]
    //~^ ERROR `derive` may only be applied to structs, enums and unions
    fn derive() { }

    #[derive(Copy, Clone)] // (can't derive Debug for unions)
    union U { f: i32 }

    #[derive(Debug)]
    struct S;

    #[derive(Debug)]
    enum E { }

    #[derive(Debug)]
    //~^ ERROR `derive` may only be applied to structs, enums and unions
    type T = S;

    #[derive(Debug)]
    //~^ ERROR `derive` may only be applied to structs, enums and unions
    impl S { }
}

fn main() {}
Commit	Line	Data
ea8adc8c XL	1	// `#![derive]` raises errors when it occurs at contexts other than ADT
ea8adc8c XL	2	// definitions.
3b2f2976	3
3b2f2976 XL	4	#[derive(Debug)]
	5	//~^ ERROR `derive` may only be applied to structs, enums and unions
	6	mod derive {
	7	mod inner { #![derive(Debug)] }
	8	//~^ ERROR `derive` may only be applied to structs, enums and unions
	9
	10	#[derive(Debug)]
	11	//~^ ERROR `derive` may only be applied to structs, enums and unions
	12	fn derive() { }
	13
	14	#[derive(Copy, Clone)] // (can't derive Debug for unions)
	15	union U { f: i32 }
	16
	17	#[derive(Debug)]
	18	struct S;
	19
	20	#[derive(Debug)]
	21	enum E { }
	22
	23	#[derive(Debug)]
	24	//~^ ERROR `derive` may only be applied to structs, enums and unions
	25	type T = S;
	26
	27	#[derive(Debug)]
	28	//~^ ERROR `derive` may only be applied to structs, enums and unions
	29	impl S { }
	30	}
0731742a XL	31
0731742a XL	32	fn main() {}