#ifndef MSP_DATAFILE_WRITERMODE_H_
#define MSP_DATAFILE_WRITERMODE_H_
+#include <msp/core/noncopyable.h>
+
namespace Msp {
namespace DataFile {
class Output;
-class Statement;
+struct Statement;
-class WriterMode
+class WriterMode: private NonCopyable
{
protected:
Output &out;