FWIW: As soon as interface{} is involved you are no longer "type safe".
On Mon, Nov 7, 2016 at 2:56 PM Kaylen Wheeler <kfjwhee...@gmail.com> wrote:
> So, what I'm trying to accomplish is a little unusual, and may need some
> explanation.
>
> Basically, I'm trying to find a typesafe way to access a type-indexed map
> of components. This map can contain objects of any type, and the keys are
> reflect.Type.
>
> One strategy I thought may work would be to pass a pointer to a pointer as
> an out-var. Using reflection to determine the pointer's type, it could be
> populated with a corresponding value.
>
> For instance, if we did something like this:
>
> c := ComponentCollection{}
> c.addComponent(123) // Add an int component
>
> var p : *int
> c.getComponent(&p)
>
>
> In this case, p would point to the int component of c.
>
> That's wht the 2 levels of indirection are necessary: it's an out-var to a
> pointer.
>
> Does that make sense?
>
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