16 lines
441 B
Rust
16 lines
441 B
Rust
#![allow(incomplete_features)]
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#![feature(const_trait_impl, effects, try_trait_v2)]
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use std::ops::FromResidual;
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impl<T> const FromResidual for T {
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//~^ ERROR const `impl` for trait `FromResidual` which is not marked with `#[const_trait]`
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//~| type parameter `T` must be used as the type parameter for some local type
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fn from_residual(t: T) -> _ {
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//~^ the placeholder `_` is not allowed
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t
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}
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}
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fn main() {}
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