update dependencies to work with update eth-block-extractor

vendor/github.com/polydawn/refmt/cloneHelpers.go

@@ -0,0 +1,50 @@
+package refmt
+
+import (
+	"github.com/polydawn/refmt/obj"
+	"github.com/polydawn/refmt/obj/atlas"
+	"github.com/polydawn/refmt/shared"
+)
+
+func Clone(src, dst interface{}) error {
+	return CloneAtlased(src, dst, atlas.MustBuild())
+}
+func MustClone(src, dst interface{}) {
+	if err := Clone(src, dst); err != nil {
+		panic(err)
+	}
+}
+
+func CloneAtlased(src, dst interface{}, atl atlas.Atlas) error {
+	return NewCloner(atl).Clone(src, dst)
+}
+func MustCloneAtlased(src, dst interface{}, atl atlas.Atlas) {
+	if err := CloneAtlased(src, dst, atl); err != nil {
+		panic(err)
+	}
+}
+
+type Cloner interface {
+	Clone(src, dst interface{}) error
+}
+
+func NewCloner(atl atlas.Atlas) Cloner {
+	x := &cloner{
+		marshaller:   obj.NewMarshaller(atl),
+		unmarshaller: obj.NewUnmarshaller(atl),
+	}
+	x.pump = shared.TokenPump{x.marshaller, x.unmarshaller}
+	return x
+}
+
+type cloner struct {
+	marshaller   *obj.Marshaller
+	unmarshaller *obj.Unmarshaller
+	pump         shared.TokenPump
+}
+
+func (c cloner) Clone(src, dst interface{}) error {
+	c.marshaller.Bind(src)
+	c.unmarshaller.Bind(dst)
+	return c.pump.Run()
+}