Non System Service Payment¶
The "Non System Service Payment" module is a system smart contract responsible for processing payments related to services in which DAO Ace Stream does not receive a fee (for example, system payments related to prediction market).
All the payments in this category are done in XAB only.
Payment with XAT is possible, but in such case the network performs an automatic exchange XAT -> XAB on built-in DEX (decentralized exchange) before making a transaction. Such an exchange is outside the scope of this smart contract, therefore, in this section only payment in XAB is described.
- if the payer has enough XAB then:
- if the payer doesn't has enough XAB then the transaction is declined
def makeNonSystemServicePayment(sourceAccount, amount): """ sourceAccount - the payer account amount - amount of payment in XAB """ if sourceAccount.balance.xab >= amount: # Burn `amount` XAB from the source account sourceAccount.balance.xab -= amount System.BLACKHOLE.balance.xab += amount # Unlock at most `amount` XAB toUnlock = min(amount, System.lockedPool.amount) if toUnlock > 0: System.lockedPool.amount -= toUnlock System.unlockedPool.amount += toUnlock else: raise Exception('not enough tokens')