encodeTo method

@override void encodeTo(Map<String, dynamic> value, Output output)

Convert self to a slice and append it to the destination.

Implementation

@override
void encodeTo(Map<String, dynamic> value, Output output) {
  for (int i = 0; i < extensions.length; i++) {
    final key = extensions[i].identifier;
    final val = value[key];

    if (val == null) {
      if (codecs[i] is! NullCodec && codecs[i].isSizeZero() == false) {
        throw MetadataException('Missing signed extension value for $key.');
      }
      // We can continue to next because this codec doesn't encode anything.
      // And even calling encode would not have any impact on the size
      continue;
    }
    try {
      codecs[i].encodeTo(val, output);
    } catch (_) {
      throw Exception('exception here at key:$key, value:$value, codec=${codecs[i]}');
    }
  }
}