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use std::fmt::Debug;
use std::option;
fn parametrized_type_is_allowed() -> Option<impl Debug> {
Some(5i32)
}
fn path_parametrized_type_is_allowed() -> option::Option<impl Debug> {
Some(5i32)
}
fn projection_is_disallowed(x: impl Iterator) -> <impl Iterator>::Item {
//~^ ERROR `impl Trait` is not allowed in path parameters
//~| ERROR `impl Trait` is not allowed in path parameters
x.next().unwrap()
}
fn projection_with_named_trait_is_disallowed(mut x: impl Iterator)
-> <impl Iterator as Iterator>::Item
//~^ ERROR `impl Trait` is not allowed in path parameters
{
x.next().unwrap()
}
fn projection_with_named_trait_inside_path_is_disallowed()
-> <::std::ops::Range<impl Debug> as Iterator>::Item
//~^ ERROR `impl Trait` is not allowed in path parameters
//~| ERROR `impl Debug: Step` is not satisfied
{
//~^ ERROR `impl Debug: Step` is not satisfied
(1i32..100).next().unwrap()
}
fn projection_from_impl_trait_inside_dyn_trait_is_disallowed()
-> <dyn Iterator<Item = impl Debug> as Iterator>::Item
//~^ ERROR `impl Trait` is not allowed in path parameters
{
panic!()
}
fn main() {}
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