[−][src]Function type_variance::variance
pub fn variance<T: Variance>() -> T
A convenience function for constructing any of Covariant<T>
,
Contravariant<T>
, and Invariant<T>
. It is equivalent to default
.
For example:
use type_variance::{Covariant, variance}; struct Co<T> { other_data: u32, marker: Covariant<T>, } impl<T> Co<T> { fn new() -> Self { Co { other_data: 42, marker: variance(), } } }