[rustc.git] / src / test / ui / issues / issue-20971.rs

// Regression test for Issue #20971.

// run-fail
// error-pattern:Hello, world!
// ignore-emscripten no processes

pub trait Parser {
    type Input;
    fn parse(&mut self, input: <Self as Parser>::Input);
}

impl Parser for () {
    type Input = ();
    fn parse(&mut self, input: ()) {}
}

pub fn many() -> Box<dyn Parser<Input = <() as Parser>::Input> + 'static> {
    panic!("Hello, world!")
}

fn main() {
    many().parse(());
}
Commit	Line	Data
85aaf69f	1	// Regression test for Issue #20971.
223e47cc	2
72b1a166	3	// run-fail
85aaf69f	4	// error-pattern:Hello, world!
72b1a166	5	// ignore-emscripten no processes
85aaf69f SL	6
	7	pub trait Parser {
	8	type Input;
	9	fn parse(&mut self, input: <Self as Parser>::Input);
	10	}
	11
	12	impl Parser for () {
	13	type Input = ();
3157f602	14	fn parse(&mut self, input: ()) {}
85aaf69f SL	15	}
85aaf69f SL	16
72b1a166	17	pub fn many() -> Box<dyn Parser<Input = <() as Parser>::Input> + 'static> {
85aaf69f SL	18	panic!("Hello, world!")
85aaf69f SL	19	}
223e47cc	20
85aaf69f	21	fn main() {
3157f602	22	many().parse(());
223e47cc	23	}