As a note, this is how I solve this problem without generics:
https://go.dev/play/p/nsDca0McADY
On Wednesday, July 27, 2022 at 2:54:20 PM UTC-7 John wrote:
> With 1.18 generics, I'm curious if anyone has a good solution using
> generics to solve the optional argument that can be used in multiple method
> problem.
>
> So say I have two methods, .A() and .B(). Both accept optional arguments
> where some optional arguments might be shared.
>
> Here is a very loose (do not take any of this as the solution, just trying
> to show what I'm kinda trying to achieve).
>
> type AOptions struct{
> Shared Opt string
> NotSharedOpt bool
> }
>
> type BOptions struct{
> Shared Opt string
> NotSharedOpt int
> }
>
> func WithShared(shared string) CallOption {
> ...
> }
>
> func WithANotShared(b bool) CallOption {
> ...
> }
>
> func (c Client) A(options ...CallOption) {
> opts := AOptions{}
> for _, o := range options {
> o(&opts)
> }
> ...
> }
> func (c Client B(options ...CalOption) {
> ...
> }
>
> We want to be able to use WithShared() with both A() and B(), but only
> WithANotShared with the A() method.
>
> I've had different solutions to this problem that would give runtime
> errors, but I'm curious with generics if there is one for compile time that
> anyone has come up with.
>
> Cheers.
>
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