Struct Constrain
type_eq
pub struct Constrain;
A convenience struct for applying implementing TypeEq trait. Since the trait connects two types, this allows neither to be Self, and prevents issues with asymmetry.
TypeEq
impl<A> TypeEq<A, A> for Constrain
fn as_eq(&self, a: A) -> A
impl Send for Constrain
impl Sync for Constrain