relate_args_with_variances

rustc_type_ir::relate

Function relate_args_with_variances 

Source 
pub fn relate_args_with_variances<I: Interner, R: TypeRelation<I>>(
    relation: &mut R,
    variances: I::VariancesOf,
    a_args: I::GenericArgs,
    b_args: I::GenericArgs,
) -> RelateResult<I, I::GenericArgs>