cpp-json/include/json/binder/json_binder.hpp

#pragma once

#include "json/json_common.hpp"

#include <iostream>

namespace json {  namespace binder {
  template <typename T>
  class binder_impl {
  public:
    virtual binder_impl<T>* clone() const = 0;
    virtual ~binder_impl() {}
    virtual void parse(T&, char const*&, parser::options) const = 0;
    virtual void write(T const&, std::ostream &) const = 0;
  };
  
  template <typename T>
  class binder {
  public:
    binder() : impl(nullptr) {}
    binder(binder const& other) : impl(other.impl->clone()) {}
    binder(binder_impl<T> const* p) : impl(p) {}
    binder(binder_impl<T> const& r) : impl(r.clone()) {}
    
    ~binder() { delete impl; }
    
    void parse(T& object, char const*& data, parser::options opts) const {
      if (!impl) return; // error?
      impl->parse(object, data, opts);
    }
    
    void write(T const& object, std::ostream & data) const {
      if (!impl) return; // error?
      impl->write(object, data);
    }
  private:
    binder_impl<T> const* impl;
  };
} }