hi all,
In a project that requires CGO I wrote a little generic wrapper over my C
structs (mostly for debugging):
```
type Wrapper[T any] struct {
P *T
destructor func(p *T)
}
```
And it was working fine. But with go 1.20 I started seeing errors of the
type
`cannot use incomplete (or unallocatable) type as a type argument: ...` for
all my C structures.
I went back to go 1.19.5 and things work just fine again.
Any thoughts ?
Maybe it's deliberate (but it seems to break compatibility) ? I saw the
release note:
*"Go 1.20 adds new Incomplete
<https://tip.golang.org/pkg/runtime/cgo/#Incomplete> marker type. Code
generated by cgo will use cgo.Incomplete to mark an incomplete C type."*
But I'm not sure what that entails to my particular code.
Maybe I should use as type parameter the pointer to the C structure and
write instead:
```
type Wrapper[T any] struct {
P T
destructor func(p T)
}
```
Any suggestions ?
cheers
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