Listing 4. Source code for disaggregating tokens.

1 function disaggregateToken( 2  TokenMap storage self, 3  Token memory token, 4  Token[] memory tokens, 5  address key 6 ) public { 7  bytes32 tokenId = token.tokenId; 8  require(contains(self, key, tokenId)); 9  uint256 disaggregationTimestamp = block.timestamp; 10  bytes32[] memory disaggregatedTokenIds = new bytes32[](tokens.length); 11  for (uint256 i = 0; i < tokens.length; i++) { 12   Token memory disaggregatedToken = tokens[i]; 13   disaggregatedTokenIds[i] = disaggregatedToken.tokenId; 14   insertToken(self, key, disaggregatedToken); 15  } 16  deleteToken(self, key, tokenId, false); 17  insertHistoryData( 18   self, 19   tokenId, 20   token.tokenName, 21   token.tokenDescription, 22   msg.sender, 23   msg.sender, 24   disaggregationTimestamp, 25   disaggregatedTokenIds, 26   TokenHistoryState.Disaggregation 27  ); 28 }