simpleEncodeDecode function Null safety

dynamic simpleEncodeDecode(
  1. Map<String, Object> typeTable,
  2. String path,
  3. String type,
  4. Object? value
)

Implementation

dynamic simpleEncodeDecode(
    Map<String, Object> typeTable, String path, String type, Object? value) {
  if (simpleStringTypes.contains(type)) {
    if (value is! String) {
      throw SdkgenTypeException(
          'Invalid Type at \'$path\', expected $type, got ${jsonEncode(value)}');
    }
    return value;
  }

  switch (type) {
    case 'json':
      return jsonDecode(jsonEncode(value, toEncodable: (Object? obj) {
        throw SdkgenTypeException(
            'Invalid Type at \'$path\', expected $type, got ${obj.runtimeType}');
      }));
    case 'bool':
      if (value is! bool) {
        throw SdkgenTypeException(
            'Invalid Type at \'$path\', expected $type, got ${jsonEncode(value)}');
      }
      return value;
    case 'hex':
      if (value is! String ||
          !RegExp(r'^(?:[A-Fa-f0-9]{2})*$').hasMatch(value)) {
        throw SdkgenTypeException(
            'Invalid Type at \'$path\', expected $type, got ${jsonEncode(value)}');
      }
      return value;
    case 'uuid':
      if (value is! String ||
          !RegExp(r'^[A-Fa-f0-9]{8}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{12}$')
              .hasMatch(value)) {
        throw SdkgenTypeException(
            'Invalid Type at \'$path\', expected $type, got ${jsonEncode(value)}');
      }
      return value;
    case 'base64':
      if (value is! String ||
          Base64Encoder().convert(Base64Decoder().convert(value)) != value) {
        throw SdkgenTypeException(
            'Invalid Type at \'$path\', expected $type, got ${jsonEncode(value)}');
      }
      return value;
    case 'int':
      if (value is! int) {
        throw SdkgenTypeException(
            'Invalid Type at \'$path\', expected $type, got ${jsonEncode(value)}');
      }
      return value;
    case 'uint':
      if (value is! int || value < 0) {
        throw SdkgenTypeException(
            'Invalid Type at \'$path\', expected $type, got ${jsonEncode(value)}');
      }
      return value;
    case 'float':
      if (value is! double && value is! int) {
        throw SdkgenTypeException(
            'Invalid Type at \'$path\', expected $type, got ${jsonEncode(value)}');
      }
      return value;
    case 'money':
      if (value is! int) {
        throw SdkgenTypeException(
            'Invalid Type at \'$path\', expected $type, got ${jsonEncode(value)}');
      }
      return value;
    case 'url':
      if (value is! String || Uri.tryParse(value) == null) {
        throw SdkgenTypeException(
            'Invalid Type at \'$path\', expected $type, got ${jsonEncode(value)}');
      }

      return Uri.parse(value).toString();
    case 'void':
      return null;
  }

  throw SdkgenTypeException('Unknown type \'$type\' at \'$path\'');
}