[rustc.git] / src / test / ui / traits / object / vs-lifetime.rs

// A few contrived examples where lifetime should (or should not) be parsed as an object type.
// Lifetimes parsed as types are still rejected later by semantic checks.

struct S<'a, T>(&'a u8, T);

fn main() {
    // `'static` is a lifetime argument, `'static +` is a type argument
    let _: S<'static, u8>;
    let _: S<'static, dyn 'static +>;
    //~^ at least one trait is required for an object type
    let _: S<'static, 'static>;
    //~^ ERROR this struct takes 1 lifetime argument but 2 lifetime arguments were supplied
    //~| ERROR this struct takes 1 generic argument but 0 generic arguments were supplied
    let _: S<dyn 'static +, 'static>;
    //~^ ERROR type provided when a lifetime was expected
    //~| ERROR at least one trait is required for an object type
}
Commit	Line	Data
7cac9316 XL	1	// A few contrived examples where lifetime should (or should not) be parsed as an object type.
	2	// Lifetimes parsed as types are still rejected later by semantic checks.
	3
7cac9316 XL	4	struct S<'a, T>(&'a u8, T);
	5
	6	fn main() {
	7	// `'static` is a lifetime argument, `'static +` is a type argument
	8	let _: S<'static, u8>;
dc9dc135 XL	9	let _: S<'static, dyn 'static +>;
dc9dc135 XL	10	//~^ at least one trait is required for an object type
7cac9316	11	let _: S<'static, 'static>;
5869c6ff	12	//~^ ERROR this struct takes 1 lifetime argument but 2 lifetime arguments were supplied
17df50a5	13	//~\| ERROR this struct takes 1 generic argument but 0 generic arguments were supplied
dc9dc135	14	let _: S<dyn 'static +, 'static>;
74b04a01	15	//~^ ERROR type provided when a lifetime was expected
dc9dc135	16	//~\| ERROR at least one trait is required for an object type
7cac9316	17	}