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//@ revisions: current next
//@[next] compile-flags: -Znext-solver
#![feature(const_trait_impl)]
#[const_trait]
trait Add<Rhs = Self> {
type Output;
fn add(self, other: Rhs) -> Self::Output;
}
impl const Add for i32 {
type Output = Self;
fn add(self, other: Self) -> Self::Output {
self + other
}
}
struct NonConstAdd(i32);
impl Add for NonConstAdd {
type Output = Self;
fn add(self, rhs: Self) -> Self {
NonConstAdd(self.0.add(rhs.0))
}
}
#[const_trait]
trait Foo {
type Bar: ~const Add;
}
impl const Foo for NonConstAdd {
type Bar = NonConstAdd;
//~^ ERROR the trait bound `NonConstAdd: ~const Add` is not satisfied
}
#[const_trait]
trait Baz {
type Qux: Add;
}
impl const Baz for NonConstAdd {
type Qux = NonConstAdd; // OK
}
fn main() {}
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