from eth2spec.utils.ssz.ssz_impl import hash_tree_root from eth2spec.utils.ssz.ssz_typing import ( uint, Container, boolean ) def encode(value, include_hash_tree_roots=False): if isinstance(value, uint): # Larger uints are boxed and the class declares their byte length if value.type().byte_len > 8: return str(int(value)) return int(value) elif isinstance(value, boolean): return value == 1 elif isinstance(value, list): # normal python lists, ssz-List, Vector return [encode(element, include_hash_tree_roots) for element in value] elif isinstance(value, bytes): # both bytes and BytesN return '0x' + value.hex() elif isinstance(value, Container): ret = {} for field_value, field_name in zip(value, value.get_fields().keys()): ret[field_name] = encode(field_value, include_hash_tree_roots) if include_hash_tree_roots: ret[field_name + "_hash_tree_root"] = '0x' + hash_tree_root(field_value).hex() if include_hash_tree_roots: ret["hash_tree_root"] = '0x' + hash_tree_root(value).hex() return ret else: raise Exception(f"Type not recognized: value={value}, typ={value.type()}")