20 lines
353 B
Rust
20 lines
353 B
Rust
#![feature(const_trait_impl)]
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// revisions: yy yn ny nn
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#[cfg_attr(any(yy, yn), const_trait)]
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trait Foo {
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fn a(&self);
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}
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#[cfg_attr(any(yy, ny), const_trait)]
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trait Bar: ~const Foo {}
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//[ny,nn]~^ ERROR: ~const can only be applied to `#[const_trait]`
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const fn foo<T: Bar>(x: &T) {
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x.a();
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//[yn,yy]~^ ERROR the trait bound
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}
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fn main() {}
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