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Cash: add a TODO comment

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This commit is contained in:
Mike Hearn 2015-11-06 12:59:52 +01:00
parent aeca56df72
commit c0238b1f21
1 changed files with 12 additions and 3 deletions
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15
src/Cash.kt
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@ -1,5 +1,4 @@
import java.security.PublicKey
import java.util.*
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
@ -85,7 +84,12 @@ object CashContract : Contract {
val inputAmount = inputs.map { it.amount }.sum()
val outputAmount = outputs.map { it.amount }.sumOrZero(currency)
val issuerCommand = args.filter { it.signingInstitution == deposit.institution }.map { it.command as? ExitCashCommand }.filterNotNull().singleOrNull()
val issuerCommand = args.
filter { it.signingInstitution == deposit.institution }.
// TODO: this map+filterNotNull pattern will become a single function in the next Kotlin beta.
map { it.command as? ExitCashCommand }.
filterNotNull().
singleOrNull()
val amountExitingLedger = issuerCommand?.amount ?: Amount(0, inputAmount.currency)
requireThat {
@ -100,11 +104,16 @@ object CashContract : Contract {
// data by the platform before execution.
val owningPubKeys = cashInputs.map { it.owner }.toSortedSet()
val keysThatSigned = args.filter { it.command is MoveCashCommand }.map { it.signer }.toSortedSet()
requireThat { "the owning keys are the same as the signing keys" by (owningPubKeys == keysThatSigned) }
requireThat {
"the owning keys are the same as the signing keys" by (owningPubKeys == keysThatSigned)
}
// Accept.
}
// TODO: craftSpend should work more like in bitcoinj, where it takes and modifies a transaction template.
// This would allow multiple contracts to compose properly (e.g. bond trade+cash movement).
/** Generate a transaction that consumes one or more of the given input states to move money to the given pubkey. */
@Throws(InsufficientBalanceException::class)
fun craftSpend(amount: Amount, to: PublicKey, wallet: List<CashState>): TransactionForTest {