addTransaction method
Add a transaction to this atomic group.
An error will be thrown if the composer's status is not BUILDING, or if adding this transaction causes the current group to exceed MAX_GROUP_SIZE.
Implementation
void addTransaction(TransactionWithSigner signer) {
if (signer.transaction.group != null) {
throw ArgumentError(
'Atomic Transaction Composer group field must be zero');
}
if (status != AtcStatus.BUILDING) {
throw ArgumentError(
'Atomic Transaction Composer only add transaction in BUILDING stage');
}
if (transactions.length >= MAX_GROUP_SIZE) {
throw ArgumentError(
'Atomic Transaction Composer cannot exceed MAX_GROUP_SIZE == 16 transactions');
}
transactions.add(signer);
}