mirror of https://github.com/rust-lang/rust
34 lines
696 B
Rust
34 lines
696 B
Rust
//@ check-pass
|
|
|
|
// Test that we can call methods from const trait impls inside of generic const items.
|
|
|
|
#![feature(generic_const_items, const_trait_impl, effects)]
|
|
#![allow(incomplete_features)]
|
|
#![crate_type = "lib"]
|
|
|
|
const CREATE<T: const Create>: T = T::create();
|
|
|
|
pub const K0: i32 = CREATE::<i32>;
|
|
pub const K1: i32 = CREATE; // arg inferred
|
|
|
|
#[const_trait]
|
|
trait Create {
|
|
fn create() -> Self;
|
|
}
|
|
|
|
impl const Create for i32 {
|
|
fn create() -> i32 {
|
|
4096
|
|
}
|
|
}
|
|
|
|
trait Mod { // doesn't need to be a `#[const_trait]`
|
|
const CREATE<T: const Create>: T;
|
|
}
|
|
|
|
impl Mod for () {
|
|
const CREATE<T: const Create>: T = T::create();
|
|
}
|
|
|
|
pub const K2: i32 = <() as Mod>::CREATE::<i32>;
|