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//! Testing of the `easy_wrapper!` macro.
#![allow(clippy::multiple_bound_locations)]
use event_listener_strategy::{easy_wrapper, EventListenerFuture, Strategy};
use std::{marker::PhantomData, pin::Pin, task::Poll};
#[cfg(target_family = "wasm")]
use wasm_bindgen_test::wasm_bindgen_test as test;
#[test]
fn easy_wrapper_generics() {
// Easy case.
struct MyStrategy;
impl EventListenerFuture for MyStrategy {
type Output = ();
fn poll_with_strategy<'a, S: Strategy<'a>>(
self: Pin<&mut Self>,
_strategy: &mut S,
_context: &mut S::Context,
) -> Poll<Self::Output> {
Poll::Ready(())
}
}
easy_wrapper! {
struct MyEasyWrapper(MyStrategy => ());
#[cfg(all(feature = "std", not(target_family = "wasm")))]
wait();
}
#[cfg(all(feature = "std", not(target_family = "wasm")))]
MyEasyWrapper::_new(MyStrategy).wait();
// Medium case with generics.
struct MyStrategy2<T> {
_marker: PhantomData<T>,
}
impl<T> EventListenerFuture for MyStrategy2<T> {
type Output = T;
fn poll_with_strategy<'a, S: Strategy<'a>>(
self: Pin<&mut Self>,
_strategy: &mut S,
_context: &mut S::Context,
) -> Poll<Self::Output> {
unreachable!()
}
}
easy_wrapper! {
struct MyEasyWrapper2<T>(MyStrategy2<T> => T);
#[cfg(all(feature = "std", not(target_family = "wasm")))]
wait();
}
// Medium mode with lifetime.
struct MyStrategylt<'a> {
_marker: PhantomData<&'a ()>,
}
impl<'a> EventListenerFuture for MyStrategylt<'a> {
type Output = &'a ();
fn poll_with_strategy<'b, S: Strategy<'b>>(
self: Pin<&mut Self>,
_strategy: &mut S,
_context: &mut S::Context,
) -> Poll<Self::Output> {
unreachable!()
}
}
easy_wrapper! {
struct MyEasyWrapperlt<'a>(MyStrategylt<'a> => &'a ());
#[cfg(all(feature = "std", not(target_family = "wasm")))]
wait();
}
// Hard mode with generic bounds.
struct MyStrategy3<'a, T: ?Sized>
where
T: 'a,
{
_marker: PhantomData<&'a T>,
}
impl<'a, T: ?Sized> EventListenerFuture for MyStrategy3<'a, T>
where
T: 'a,
{
type Output = &'a T;
fn poll_with_strategy<'b, S: Strategy<'b>>(
self: Pin<&mut Self>,
_strategy: &mut S,
_context: &mut S::Context,
) -> Poll<Self::Output> {
unreachable!()
}
}
easy_wrapper! {
struct MyEasyWrapper3<'a, T: ?Sized>(MyStrategy3<'a, T> => &'a T) where T: 'a;
#[cfg(all(feature = "std", not(target_family = "wasm")))]
wait();
}
}
|
