rust/tests/ui/rfc-2632-const-trait-impl/call-generic-method-nonconst-bound.rs

// check-pass

struct S;

impl PartialEq for S {
    fn eq(&self, _: &S) -> bool {
        true
    }
}

const fn equals_self<T: PartialEq>(t: &T) -> bool {
    true
}

pub const EQ: bool = equals_self(&S);

fn main() {}
const fn: allow use of trait impls from bounds 2020-11-22 04:19:46 +01:00			`// check-pass`

			`struct S;`

			`impl PartialEq for S {`
			`fn eq(&self, _: &S) -> bool {`
			`true`
			`}`
			`}`

Introduce `~const` - [x] Removed `?const` and change uses of `?const` - [x] Added `~const` to the AST. It is gated behind const_trait_impl. - [x] Validate `~const` in ast_validation. - [ ] Add enum `BoundConstness` to the HIR. (With variants `NotConst` and `ConstIfConst` allowing future extensions) - [ ] Adjust trait selection and pre-existing code to use `BoundConstness`. - [ ] Optional steps (for this PR, obviously) - [ ] Fix #88155 - [ ] Do something with constness bounds in chalk 2021-08-25 11:53:16 +00:00			`const fn equals_self<T: PartialEq>(t: &T) -> bool {`
const fn: allow use of trait impls from bounds 2020-11-22 04:19:46 +01:00			`true`
			`}`

			`pub const EQ: bool = equals_self(&S);`

			`fn main() {}`