mirror of https://github.com/rust-lang/rust
25 lines
671 B
Rust
25 lines
671 B
Rust
//! This test used to ICE in typeck because of the type/const mismatch,
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//! even though wfcheck already errored.
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//! issue: rust-lang/rust#123457
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pub struct KeyHolder<const K: u8> {}
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pub trait ContainsKey<const K: u8> {}
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pub trait SubsetExcept<P> {}
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impl<K> ContainsKey<K> for KeyHolder<K> {}
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//~^ ERROR: type provided when a constant was expected
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//~| ERROR: type provided when a constant was expected
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impl<P, T: ContainsKey<0>> SubsetExcept<P> for T {}
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pub fn remove_key<K, S: SubsetExcept<K>>() -> S {
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loop {}
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}
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fn main() {
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let map: KeyHolder<0> = remove_key::<_, _>();
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//~^ ERROR: the trait bound `KeyHolder<0>: SubsetExcept<_>` is not satisfied
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}
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