json-validator/include/jvalidate/adapter.h

#pragma once

#include <cstdint>
#include <map>
#include <optional>
#include <string_view>

#include <jvalidate/detail/array_iterator.h>
#include <jvalidate/detail/object_iterator.h>
#include <jvalidate/enum.h>
#include <jvalidate/forward.h>
#include <jvalidate/status.h>

namespace jvalidate::adapter {
class Adapter {
public:
  virtual ~Adapter() = default;

  virtual Type type() const = 0;
  virtual std::unique_ptr<Const const> freeze() const = 0;

  virtual bool as_boolean() const = 0;
  virtual int64_t as_integer() const = 0;
  virtual double as_number() const = 0;
  virtual std::string as_string() const = 0;

  virtual size_t array_size() const = 0;
  virtual size_t object_size() const = 0;

  virtual Status apply_array(AdapterCallback const & cb) const = 0;
  virtual Status apply_object(ObjectAdapterCallback const & cb) const = 0;

  virtual bool equals(Adapter const & lhs, bool strict) const = 0;
};

class Const {
public:
  virtual ~Const() = default;
  virtual Status apply(AdapterCallback const & cb) const = 0;
};
}

namespace jvalidate::adapter::detail {
template <typename JSON> class GenericConst final : public Const {
public:
  explicit GenericConst(JSON const & value) : value_(value) {}

  Status apply(AdapterCallback const & cb) const {
    return cb(typename AdapterTraits<JSON>::ConstAdapter(value_));
  }

private:
  JSON value_;
};
}