mirror of https://github.com/status-im/nim-abc.git
33 lines
715 B
Nim
33 lines
715 B
Nim
import ./txstore
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func checkValue(store: TxStore, transaction: Transaction): bool =
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var valueIn, valueOut = 0.u256
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for (hash, owner) in transaction.inputs:
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for output in store[hash].outputs:
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if output.owner == owner:
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valueIn += output.value
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for (_, value) in transaction.outputs:
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valueOut += value
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valueIn == valueOut
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func hasValidTx*(store: TxStore, hash: TxHash): bool =
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if hash == store.genesis:
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return true
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if not store.hasTx(hash):
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return false
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let transaction = store[hash]
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if not transaction.hasValidSignature:
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return false
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for (hash, _) in transaction.inputs:
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if not store.hasValidTx(hash):
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return false
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store.checkValue(transaction)
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