27 lines
528 B
Rust
27 lines
528 B
Rust
#![crate_type = "lib"]
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#![feature(generic_const_exprs)]
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#![allow(incomplete_features)]
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pub struct Const<const U: u8>;
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pub trait Trait {
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type AssocTy;
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fn assoc_fn() -> Self::AssocTy;
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}
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impl<const U: u8> Trait for Const<U> // OK, trait impl predicates
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where
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Const<{ my_const_fn(U) }>: ,
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{
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type AssocTy = Const<{ my_const_fn(U) }>;
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//~^ ERROR private type
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fn assoc_fn() -> Self::AssocTy {
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Const
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}
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}
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const fn my_const_fn(val: u8) -> u8 {
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// body of this function doesn't matter
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val
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}
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