Interface Extension

msgp/extension.go:80–98

Extension is the interface fulfilled by types that want to define their own binary encoding.

// by types that want to define their
// own binary encoding.
type Extension interface {
	// ExtensionType should return
	// a int8 that identifies the concrete
	// type of the extension. (Types <0 are
	// officially reserved by the MessagePack
	// specifications.)
	ExtensionType() int8

	// Len should return the length
	// of the data to be encoded
	Len() int

	// MarshalBinaryTo should copy
	// the data into the supplied slice,
	// assuming that the slice has length Len()
	MarshalBinaryTo([]byte) error

	UnmarshalBinary([]byte) error
}

// RawExtension implements the Extension interface
type RawExtension struct {