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// run-pass
#![feature(const_trait_impl)]
struct Int(i32);
impl const std::ops::Add for Int {
type Output = Int;
fn add(self, rhs: Self) -> Self {
Int(self.0.plus(rhs.0))
}
}
impl const PartialEq for Int {
fn eq(&self, rhs: &Self) -> bool {
self.0 == rhs.0
}
fn ne(&self, other: &Self) -> bool {
!self.eq(other)
}
}
#[const_trait]
pub trait Plus {
fn plus(self, rhs: Self) -> Self;
}
impl const Plus for i32 {
fn plus(self, rhs: Self) -> Self {
self + rhs
}
}
pub const fn add_i32(a: i32, b: i32) -> i32 {
a.plus(b)
}
const ADD_INT: Int = Int(1i32) + Int(2i32);
fn main() {
assert!(ADD_INT == Int(3i32));
}
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