mirror of https://github.com/rust-lang/rust
31 lines
657 B
Rust
31 lines
657 B
Rust
struct Uwu<const N: u32 = 1, const M: u32 = N>;
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trait Trait {}
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impl<const N: u32> Trait for Uwu<N> {}
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fn rawr() -> impl Trait {
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//~^ error: the trait bound `Uwu<10, 12>: Trait` is not satisfied
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Uwu::<10, 12>
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}
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trait Traitor<const N: u8 = 1, const M: u8 = N> {}
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impl<const N: u8> Traitor<N, 2> for u32 {}
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impl Traitor<1, 2> for u64 {}
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fn uwu<const N: u8>() -> impl Traitor<N> {
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//~^ error: the trait bound `u32: Traitor<N>` is not satisfied
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1_u32
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}
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fn owo() -> impl Traitor {
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//~^ error: the trait bound `u64: Traitor` is not satisfied
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1_u64
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}
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fn main() {
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rawr();
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uwu(); //~ ERROR: type annotations needed
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owo();
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}
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