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#![feature(const_trait_impl, effects)]
//@ revisions: yy yn ny nn
//@[yy] check-pass
#[cfg_attr(any(yy, yn), const_trait)]
trait Foo {
fn a(&self);
}
#[cfg_attr(any(yy, ny), const_trait)]
trait Bar: ~const Foo {}
//[ny,nn]~^ ERROR: `~const` can only be applied to `#[const_trait]`
//[ny,nn]~| ERROR: `~const` can only be applied to `#[const_trait]`
//[ny,nn]~| ERROR: `~const` can only be applied to `#[const_trait]`
//[yn,nn]~^^^^ ERROR: `~const` is not allowed here
const fn foo<T: ~const Bar>(x: &T) {
//[yn,nn]~^ ERROR: `~const` can only be applied to `#[const_trait]`
x.a();
//[yn]~^ ERROR: mismatched types
}
fn main() {}
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