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use crateMapper;
/// |x|{x}
;
/// combine 2 map
;
/*
impl<T> FnOnce(T)->T for AsSelf {
type Output=T;
extern "rust-call" fn call_once(self, args: Args) -> Self::Output {
args
}
}
impl<T> FnMut(T)->T for AsSelf {
extern "rust-call" fn call(&self, args: Args) -> Self::Output {
todo!()
}
}
impl<T> Fn(T)->T for AsSelf {
extern "rust-call" fn call(&self, args: Args) -> Self::Output {
todo!()
}
}
*/
/*
#[derive(Default)]
pub struct AsSelf;
impl<T:Tuple> Fn(T) for AsSelf {
type Output=T;
extern "rust-call" fn call(&self, args: T) -> T {
args
}
}
impl<T> Mapper<T> for AsSelf {
type Output = T;
fn map(&self,value:T)->Self::Output {
value
}
}
*/
/*
#[derive(Clone, Copy)]
pub struct VisitPrint;
impl<T:ToString> Mapper<T> for VisitPrint {
type Output = ();
fn map(self,value:T) {
println!("{}",value.to_string())
}
}
*/