mirror of https://github.com/rust-lang/rust
36 lines
806 B
Rust
36 lines
806 B
Rust
// Tests that we properly detect defining usages when using
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// const generics in an associated opaque type
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//@ check-pass
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//@ revisions: current next
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//@ ignore-compare-mode-next-solver (explicit revisions)
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//@[next] compile-flags: -Znext-solver
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#![feature(impl_trait_in_assoc_type)]
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trait UnwrapItemsExt<'a, const C: usize> {
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type Iter;
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fn unwrap_items(self) -> Self::Iter;
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}
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struct MyStruct<const C: usize> {}
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trait MyTrait<'a, const C: usize> {
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type MyItem;
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const MY_CONST: usize;
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}
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impl<'a, const C: usize> MyTrait<'a, C> for MyStruct<C> {
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type MyItem = u8;
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const MY_CONST: usize = C;
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}
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impl<'a, I, const C: usize> UnwrapItemsExt<'a, C> for I {
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type Iter = impl MyTrait<'a, C>;
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fn unwrap_items(self) -> Self::Iter {
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MyStruct::<C> {}
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}
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}
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fn main() {}
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