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use std::future::Future;
pub fn dyn_func<T>(
executor: impl FnOnce(T) -> dyn Future<Output = ()>,
) -> Box<dyn FnOnce(T) -> dyn Future<Output = ()>> {
Box::new(executor) //~ ERROR may not live long enough
}
trait Trait {
fn method(&self) {}
}
impl Trait for fn() {}
pub fn in_ty_param<T: Fn() -> dyn std::fmt::Debug> (t: T) {
t.method();
//~^ ERROR no method named `method` found for type parameter `T`
}
fn with_sized<T: Fn() -> &'static (dyn std::fmt::Debug) + ?Sized>() {
without_sized::<T>();
//~^ ERROR the size for values of type `T` cannot be known at compilation time
}
fn without_sized<T: Fn() -> &'static dyn std::fmt::Debug>() {}
fn main() {}
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