buildGroup method
Finalize the transaction group and returned the finalized transactions.
The composer's status will be at least BUILT after executing this method.
Implementation
List<TransactionWithSigner> buildGroup() {
final compareTo = status.index - AtcStatus.BUILT.index;
if (compareTo >= 0) {
return transactions;
}
if (transactions.isEmpty) {
throw ArgumentError(
'should not build transaction group with 0 transaction in composer');
}
if (transactions.length > 1) {
final groupTxns = transactions.map((t) => t.transaction).toList();
final groupId = AtomicTransfer.computeGroupId(groupTxns);
for (var tws in transactions) {
tws.transaction.group = groupId;
}
}
_status = AtcStatus.BUILT;
return transactions;
}