var encodeStatePool sync.Pool

func newEncodeState() *encodeState {
	if v := encodeStatePool.Get(); v != nil {
		e := v.(*encodeState)
		e.Reset()
		if len(e.ptrSeen) > 0 {
			panic("ptrEncoder.encode should have emptied ptrSeen via defers")
		}
		e.ptrLevel = 0
		return e
	}
	return &encodeState{ptrSeen: make(map[any]struct{})}
}

	"sync"
)

const uint64Size = 8

type encHelper func(state *encoderState, v reflect.Value) bool

// encoderState is the global execution state of an instance of the encoder.
// Field numbers are delta encoded and always increase. The field
// number is initialized to -1 so 0 comes out as delta(1). A delta of
// 0 terminates the structure.
type encoderState struct {
	enc      *Encoder
	b        *encBuffer