sizeHint method

@override int sizeHint(ExtrinsicMetadata metadata)

If possible give a hint of expected size of the encoding.

This method is used inside default implementation of encode to avoid re-allocations.

Implementation

@override
int sizeHint(ExtrinsicMetadata metadata) {
  int size = U8Codec.codec.sizeHint(metadata.version);
  size += TypeIdCodec.codec.sizeHint(metadata.addressType);
  size += TypeIdCodec.codec.sizeHint(metadata.callType);
  size += TypeIdCodec.codec.sizeHint(metadata.signatureType);
  size += TypeIdCodec.codec.sizeHint(metadata.extraType);
  size += SequenceCodec(SignedExtensionMetadata.codec).sizeHint(metadata.signedExtensions);
  return size;
}