On Tue, Sep 4, 2018 at 9:49 AM, roger peppe <[email protected]> wrote:
>
> For example, the Stringer contract in the
> design doc purports to check that there's a method named String, which
> it does not - it could be a function-valued field instead.
>
> So if you've written something like this:
>
> func FastString(type T stringer)(x T) string {
> switch x.(type) {
> case myType:
> return x.String()
> default:
> // Slow path: fall back to fmt.
> return fmt.Sprint(x)
> }
> }
>
> you might expect that fmt.Sprint will call the String method that's
> defined on x, but that's not guaranteed.
That's a good point though note that for a case like this you could of
course write
contract stringer(x T) {
var _ fmt.Stringer = x
}
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