@ethereum-sourcify/contract-call-decoder
Version:
Library to decode Ethereum smart contract calls into human-readable descriptions using ABI and NatSpec
65 lines • 4.79 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.extractCustomFields = exports.getValueFromDecodedFunctionData = void 0;
const bignumber_1 = require("@ethersproject/bignumber");
/**
* Check if the array contains both string and number as keys
* @param array any array
* @returns true if the array contains both string and number as keys
*/
function arrayContainsMixedTypeKeys(array) {
let realLength = 0;
// eslint-disable-next-line @typescript-eslint/no-unused-vars
for (const _ in array) {
realLength++;
}
return array.length !== realLength;
}
/**
*
* @param decodedFunctionData response from ethers Interface.decodeFunctionData (mixed typed index array)
* @returns a javascript rappresentation of the arrays / objects / values passed in the calldata
*/
function getValueFromDecodedFunctionData(decodedFunctionData) {
if (Array.isArray(decodedFunctionData) &&
arrayContainsMixedTypeKeys(decodedFunctionData)) {
const decodedFunctionDataWithoutStringKeys = [];
for (const prop in decodedFunctionData) {
if (!(parseInt(prop) >= 0)) {
decodedFunctionDataWithoutStringKeys[prop] = decodedFunctionData[prop];
}
}
const result = Object.assign({}, decodedFunctionDataWithoutStringKeys);
const res = {};
for (const property in result) {
res[property] = getValueFromDecodedFunctionData(result[property]);
}
return res;
}
else if (Array.isArray(decodedFunctionData)) {
return decodedFunctionData.map((value) => getValueFromDecodedFunctionData(value));
}
else if (decodedFunctionData instanceof bignumber_1.BigNumber) {
try {
return decodedFunctionData.toBigInt();
}
catch (e) {
return decodedFunctionData.toNumber();
}
}
else {
return decodedFunctionData;
}
}
exports.getValueFromDecodedFunctionData = getValueFromDecodedFunctionData;
function extractCustomFields(doc) {
return Object.keys(doc)
.filter((key) => key.startsWith('custom:'))
.reduce((previous, current) => {
const newValue = {};
newValue[current.replace('custom:', '')] = doc[current];
return Object.assign(Object.assign({}, previous), newValue);
}, {});
}
exports.extractCustomFields = extractCustomFields;
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