lol no futures

This commit is contained in:
nora 2022-11-20 22:09:54 +01:00
parent 592e86e3f3
commit 4433f6b891
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@ -10,65 +10,59 @@ impl<T> Project for FutResult<T> {
type Assoc = Result<T, ()>;
}
mod fut {
use std::future::Future;
use crate::Project;
use crate::Project;
pub trait Stream {
type Item;
pub trait Stream {
type Item;
fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F>
where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,
Self: Sized,
{
loop {}
}
}
pub fn map<T, F>(f: F) -> Map<F>
fn for_each<Fut, F>(self, f: F) -> ForEach<Self, F>
where
F: FnMut(String) -> T,
F: FnMut(Self::Item) -> Fut,
Self: Sized,
{
loop {}
}
}
pub struct Map<F>(F);
pub fn map<T, F>(f: F) -> Map<F>
where
F: FnMut(String) -> T,
{
loop {}
}
pub trait FnOnce1<A> {
type Output;
fn call_once(self, arg: A) -> Self::Output;
}
pub struct Map<F>(F);
impl<T, A, R> FnOnce1<A> for T
where
T: FnOnce(A) -> R,
{
type Output = R;
fn call_once(self, arg: A) -> R {
loop {}
}
}
pub trait FnOnce1<A> {
type Output;
fn call_once(self, arg: A) -> Self::Output;
}
impl<F> Stream for Map<F>
where
F: FnOnce1<String>,
F::Output: Project,
{
type Item = <F::Output as Project>::Assoc;
}
pub struct ForEach<St, Fut, F> {
stream: St,
f: F,
future: Fut,
impl<T, A, R> FnOnce1<A> for T
where
T: FnOnce(A) -> R,
{
type Output = R;
fn call_once(self, arg: A) -> R {
loop {}
}
}
impl<F> Stream for Map<F>
where
F: FnOnce1<String>,
F::Output: Project,
{
type Item = <F::Output as Project>::Assoc;
}
pub struct ForEach<St, F> {
stream: St,
f: F,
}
fn main() {
let bodies = fut::map(|url| FutResult(Result::Ok(url)));
let bodies = map(|url| FutResult(Result::Ok(url)));
bodies.for_each(|b| async {
match b {