BigNumberMetaTypeImplementation_p.h

#include <knowCore/MetaTypeImplementation.h>
 
KNOWCORE_DEFINE_METATYPE_START_IMPLEMENTATION(knowCore::BigNumber)
  ReturnValue<QByteArray> md5(const knowCore::BigNumber& _value) const override
  {
    return kCrvSuccess(_value.md5());
  }
  ReturnValue<QJsonValue> toJsonValue(const knowCore::BigNumber& _value, const SerialisationContexts&) const override
  {
    const auto [success, value, errorMessage] = _value.toInt64();
    Q_UNUSED(errorMessage);
    
    if(success and value > -9007199254740992 and value < 9007199254740992) // outside of that range, there is a loss of precision, since Json store value as double!
    {
      return kCrvSuccess(QJsonValue(value));
    } else {
      return kCrvSuccess(QJsonValue(_value.toString()));
    }
  }
  ReturnVoid fromJsonValue(knowCore::BigNumber* _value, const QJsonValue& _json_value, const DeserialisationContexts&) const override
  {
    if(_json_value.isDouble())
    {
      *_value = BigNumber(_json_value.toDouble());
      return kCrvSuccess();
    } else if(_json_value.isString())
    {
      KNOWCORE_RETURN_VALUE_TRY_ASSIGN(*_value, BigNumber::fromString(_json_value.toString()));
      return kCrvSuccess();
    } else {
      return expectedError("number", _json_value);
    }
  }
  ReturnValue<QCborValue> toCborValue(const knowCore::BigNumber& _value, const SerialisationContexts&) const override
  {
    const auto [success, value, errorMessage] = _value.toInt64();
    Q_UNUSED(errorMessage);
    if(success)
    {
      return kCrvSuccess(QCborValue(value));
    } else {
      return kCrvSuccess(_value.toString());
    }
  }
  ReturnVoid fromCborValue(knowCore::BigNumber* _value, const QCborValue& _cbor_value, const DeserialisationContexts&) const override
  {
    if(_cbor_value.isInteger())
    {
      *_value = BigNumber(_cbor_value.toInteger());
      return kCrvSuccess();
    } else if(_cbor_value.isString())
    {
      KNOWCORE_RETURN_VALUE_TRY_ASSIGN(*_value, BigNumber::fromString(_cbor_value.toString()));
      return kCrvSuccess();
    } else {
      return expectedError("number", _cbor_value);
    }
  }
  ReturnValue<QString> printable(const knowCore::BigNumber& _value) const override
  {
    return kCrvSuccess(_value.toString());
  }
  ReturnValue<QString> toRdfLiteral(const knowCore::BigNumber& _value, const SerialisationContexts&) const override
  {
    return kCrvSuccess(_value.toString());
  }
  ReturnVoid fromRdfLiteral(knowCore::BigNumber* _value, const QString& _serialised, const DeserialisationContexts&) const override
  {
    KNOWCORE_RETURN_VALUE_TRY_ASSIGN(*_value, BigNumber::fromString(_serialised));
    return kCrvSuccess();
  } 
KNOWCORE_DEFINE_METATYPE_FINISH_IMPLEMENTATION(knowCore::BigNumber)