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//@ edition:2018
//@ check-pass
#![allow(unused)]
#![deny(rust_2021_prelude_collisions)]
struct S;
impl S {
fn try_into(self) -> S {
S
}
}
struct X;
trait Hey {
fn from_iter(_: i32) -> Self;
}
impl Hey for X {
fn from_iter(_: i32) -> Self {
X
}
}
struct Y<T>(T);
impl Hey for Y<i32> {
fn from_iter(_: i32) -> Self {
Y(0)
}
}
struct Z<T>(T);
impl Hey for Z<i32> {
fn from_iter(_: i32) -> Self {
Z(0)
}
}
impl std::iter::FromIterator<u32> for Z<u32> {
fn from_iter<T: IntoIterator<Item = u32>>(_: T) -> Self {
todo!()
}
}
fn main() {
// See https://github.com/rust-lang/rust/issues/86633
let s = S;
let s2 = s.try_into();
// Check that we do not issue suggestions for types that do not implement `FromIter`.
//
// See https://github.com/rust-lang/rust/issues/86902
X::from_iter(1);
Y::from_iter(1);
Y::<i32>::from_iter(1);
Z::<i32>::from_iter(1);
}
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