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fix utxo index

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This commit is contained in:
poma 2021-10-26 16:35:26 +01:00
parent 45a2c01e33
commit 5b90a793f5
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GPG Key ID: BA20CB01FE165657
1 changed files with 5 additions and 11 deletions
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16
src/index.js
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@ -25,24 +25,18 @@ async function getProof({ inputs, outputs, tree, extAmount, fee, recipient, rela
for (const input of inputs) {
if (input.amount > 0) {
const index = tree.indexOf(toFixedHex(input.getCommitment()))
if (index < 0) {
input.index = tree.indexOf(toFixedHex(input.getCommitment()))
if (input.index < 0) {
throw new Error(`Input commitment ${toFixedHex(input.getCommitment())} was not found`)
}
inputMerklePathIndices.push(index)
inputMerklePathElements.push(tree.path(index).pathElements)
inputMerklePathIndices.push(input.index)
inputMerklePathElements.push(tree.path(input.index).pathElements)
} else {
inputMerklePathIndices.push(0)
inputMerklePathElements.push(new Array(tree.levels).fill(0))
}
}
const oldRoot = tree.root()
for (const output of outputs) {
output.index = tree.elements().length
tree.insert(output.getCommitment())
}
const extData = {
recipient: toFixedHex(recipient, 20),
extAmount: toFixedHex(extAmount),
@ -55,7 +49,7 @@ async function getProof({ inputs, outputs, tree, extAmount, fee, recipient, rela
const extDataHash = getExtDataHash(extData)
let input = {
root: oldRoot,
root: tree.root(),
inputNullifier: inputs.map((x) => x.getNullifier()),
outputCommitment: outputs.map((x) => x.getCommitment()),
publicAmount: BigNumber.from(extAmount).sub(fee).add(FIELD_SIZE).mod(FIELD_SIZE).toString(),