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19 lines
869 B
Rust
19 lines
869 B
Rust
//! Regression test for <https://github.com/rust-lang/rust/issues/122638>.
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//@ check-fail
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#![feature(min_specialization)]
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impl<'a, T: std::fmt::Debug, const N: usize> Iterator for ConstChunksExact<'a, T, { N }> {
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//~^ ERROR not all trait items implemented, missing: `Item` [E0046]
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fn next(&mut self) -> Option<Self::Item> {}
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//~^ ERROR mismatched types [E0308]
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}
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struct ConstChunksExact<'a, T: '_, const assert: usize> {}
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//~^ ERROR `'_` cannot be used here [E0637]
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//~| ERROR lifetime parameter `'a` is never used [E0392]
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//~| ERROR type parameter `T` is never used [E0392]
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impl<'a, T: std::fmt::Debug, const N: usize> Iterator for ConstChunksExact<'a, T, {}> {
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//~^ ERROR mismatched types [E0308]
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//~| ERROR the const parameter `N` is not constrained by the impl trait, self type, or predicates [E0207]
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type Item = &'a [T; N]; }
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fn main() {}
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