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// file : odb/emitter.hxx
// author : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
// license : GNU GPL v3; see accompanying LICENSE file
#ifndef ODB_EMITTER_HXX
#define ODB_EMITTER_HXX
#include <string>
#include <sstream>
// Emit a code construct one line at a time.
//
struct emitter
{
virtual void
pre ();
virtual void
line (const std::string&) = 0;
virtual void
post ();
};
// Send output line-by-line (std::endl marker) to the emitter.
//
class emitter_ostream: public std::ostream
{
public:
emitter_ostream (emitter& e): std::ostream (&buf_), buf_ (e) {}
private:
class streambuf: public std::stringbuf
{
public:
streambuf (emitter& e): e_ (e) {}
virtual int
sync ();
private:
emitter& e_;
};
streambuf buf_;
};
#endif // ODB_EMITTER_HXX
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