On Sat, Jun 20, 2020 at 8:35 AM T L <tapir....@gmail.com> wrote:
>
> And
> * should "embeddable" be one kind of constraints?
> * should "has some specified fields" be one kind of constraints?
Being able to express every possible language concept in a constraint
is not a goal.
Also, this kind of extension can typically be added later.
Ian
> On Saturday, June 20, 2020 at 11:26:08 AM UTC-4, T L wrote:
>>
>> For example, if there is a builtin convertible(from, to) constraint,
>> We can define a slice conversion function as
>>
>> func Convert(type Ta, Tb converitble(Ta, Tb)) (avs []Ta, _Tb) (bvs []Tb) {
>> bvs = make([]Tb, 0, len(avs)
>> for _, v := range avs {
>> bvs = append(bvs, Tb(v))
>> }
>> return bvs
>> }
>>
>> We can use it as:
>>
>> iValues := Convert([]int{}{1, 2, 3}, interface{}(nil))
>
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