22 lines
430 B
Rust
22 lines
430 B
Rust
#![feature(generic_const_exprs)]
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#![allow(incomplete_features)]
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const fn bar<T: ?Sized>() -> usize { 7 }
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trait Foo {
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fn test(&self) -> [u8; bar::<Self>()];
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}
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impl Foo for () {
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fn test(&self) -> [u8; bar::<Self>()] {
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[0; bar::<Self>()]
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}
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}
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fn use_dyn(v: &dyn Foo) { //~ERROR the trait `Foo` cannot be made into an object
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v.test(); //~ERROR the trait `Foo` cannot be made into an object
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}
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fn main() {}
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