[rustc.git] / vendor / syn-0.11.11 / src / aster / invoke.rs

pub trait Invoke<A> {
    type Result;

    fn invoke(self, arg: A) -> Self::Result;
}

#[derive(Copy, Clone)]
pub struct Identity;

impl<A> Invoke<A> for Identity {
    type Result = A;

    fn invoke(self, arg: A) -> A {
        arg
    }
}
Commit	Line	Data
83c7162d XL	1	pub trait Invoke<A> {
	2	type Result;
	3
	4	fn invoke(self, arg: A) -> Self::Result;
	5	}
	6
	7	#[derive(Copy, Clone)]
	8	pub struct Identity;
	9
	10	impl<A> Invoke<A> for Identity {
	11	type Result = A;
	12
	13	fn invoke(self, arg: A) -> A {
	14	arg
	15	}
	16	}