Repo created

generator/translator_interface.hpp

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+#pragma once
+
+#include "base/assert.hpp"
+
+#include <memory>
+#include <string>
+#include <vector>
+
+struct OsmElement;
+
+namespace generator
+{
+namespace cache
+{
+class IntermediateData;
+}  // namespace cache
+
+class TranslatorCountry;
+class TranslatorCoastline;
+class TranslatorWorld;
+class TranslatorCollection;
+class TranslatorComplex;
+
+// Implementing this interface allows an object to create intermediate data from OsmElement.
+class TranslatorInterface
+{
+public:
+  virtual ~TranslatorInterface() = default;
+
+  virtual std::shared_ptr<TranslatorInterface> Clone() const = 0;
+
+  virtual void Preprocess(OsmElement &) {}
+  virtual void Emit(OsmElement const & element) = 0;
+  virtual void Finish() = 0;
+  virtual bool Save() = 0;
+
+  virtual void Merge(TranslatorInterface const &) = 0;
+};
+}  // namespace generator
+
+#define IMPLEMENT_TRANSLATOR_IFACE(className)             \
+  void Merge(TranslatorInterface const & ti) override     \
+  {                                                       \
+    dynamic_cast<className const &>(ti).MergeInto(*this); \
+  }