22 lines
360 B
Rust
22 lines
360 B
Rust
// check-pass
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pub trait Indexable {
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type Idx;
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}
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impl Indexable for u8 {
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type Idx = u8;
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}
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impl Indexable for u16 {
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type Idx = u16;
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}
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pub trait Indexer<T: Indexable>: std::ops::Index<T::Idx, Output = T> {}
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trait StoreIndex: Indexer<u8> + Indexer<u16> {}
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fn foo(st: &impl StoreIndex) -> &dyn StoreIndex {
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st as &dyn StoreIndex
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}
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fn main() {}
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