writeJsonExtensions.h

#pragma once
 
#include "CesiumJsonWriter/ExtensionWriterContext.h"
#include "CesiumJsonWriter/JsonWriter.h"
 
#include <spdlog/fmt/fmt.h>
 
namespace CesiumJsonWriter {
 
template <typename TExtended>
void writeJsonExtensions(
    const TExtended& obj,
    JsonWriter& jsonWriter,
    const ExtensionWriterContext& context) {
  if (obj.extensions.empty()) {
    return;
  }
  jsonWriter.StartObject();
  for (const auto& item : obj.extensions) {
    auto handler = context.createExtensionHandler(
        item.first,
        item.second,
        TExtended::TypeName);
    if (handler) {
      jsonWriter.Key(item.first);
      handler(item.second, jsonWriter, context);
    }
  }
  jsonWriter.EndObject();
}
 
template <typename TExtended>
bool hasRegisteredExtensions(
    const TExtended& obj,
    JsonWriter& jsonWriter,
    const ExtensionWriterContext& context) {
  bool hasRegisteredExtensions = false;
 
  for (const auto& item : obj.extensions) {
    auto handler = context.createExtensionHandler(
        item.first,
        item.second,
        TExtended::TypeName);
    if (handler) {
      hasRegisteredExtensions = true;
    } else if (
        context.getExtensionState(item.first) != ExtensionState::Disabled) {
      jsonWriter.emplaceWarning(fmt::format(
          "Encountered unregistered extension {}. This extension will be "
          "ignored. To silence this warning, disable the extension with "
          "ExtensionWriterContext::setExtensionState.",
          item.first));
    }
  }
 
  return hasRegisteredExtensions;
}
} // namespace CesiumJsonWriter