mirror of https://github.com/rust-lang/rust
32 lines
675 B
Rust
32 lines
675 B
Rust
//@ check-pass
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#![feature(generic_const_items, associated_const_equality, adt_const_params)]
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#![allow(incomplete_features)]
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trait Owner {
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const C<const N: u32>: u32;
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const K<const N: u32>: u32;
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const Q<T>: Maybe<T>;
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}
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impl Owner for () {
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const C<const N: u32>: u32 = N;
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const K<const N: u32>: u32 = N + 1;
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const Q<T>: Maybe<T> = Maybe::Nothing;
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}
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fn take0<const N: u32>(_: impl Owner<C<N> = { N }>) {}
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fn take1(_: impl Owner<K<99> = 100>) {}
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fn take2(_: impl Owner<Q<()> = { Maybe::Just(()) }>) {}
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fn main() {
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take0::<128>(());
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take1(());
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}
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#[derive(PartialEq, Eq, std::marker::ConstParamTy)]
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enum Maybe<T> {
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Nothing,
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Just(T),
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}
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