[go] Add a Writable interface to ease the process to encode structs to Writer #100
Description
I've been experimenting with karmem and I found that it would be useful to have an interface to describe writeable structs, something like:
// Writable writes an encoded representation of the type to the underlying Writer.
type Writable interface {
WriteAsRoot(*Writer) (uint, error)
}This would help to create helper method to encode different type of generated structs, i.e. I have something like
func ToPtr(writable Writable, w *karmem.Writer ) (uint32, uint32) {
if _, err := writable.WriteAsRoot(w); err != nil {
panic(err)
}
buf := w.Bytes()
ptr := &buf[0]
unsafePtr := uintptr(unsafe.Pointer(ptr))
return uint32(unsafePtr), uint32(len(buf))
}