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