viem
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JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.decodeEventLog = decodeEventLog;
const abi_js_1 = require("../../errors/abi.js");
const size_js_1 = require("../data/size.js");
const toEventSelector_js_1 = require("../hash/toEventSelector.js");
const cursor_js_1 = require("../../errors/cursor.js");
const decodeAbiParameters_js_1 = require("./decodeAbiParameters.js");
const formatAbiItem_js_1 = require("./formatAbiItem.js");
const docsPath = '/docs/contract/decodeEventLog';
function decodeEventLog(parameters) {
const { abi, data, strict: strict_, topics, } = parameters;
const strict = strict_ ?? true;
const [signature, ...argTopics] = topics;
if (!signature)
throw new abi_js_1.AbiEventSignatureEmptyTopicsError({ docsPath });
const abiItem = (() => {
if (abi.length === 1)
return abi[0];
return abi.find((x) => x.type === 'event' &&
signature === (0, toEventSelector_js_1.toEventSelector)((0, formatAbiItem_js_1.formatAbiItem)(x)));
})();
if (!(abiItem && 'name' in abiItem) || abiItem.type !== 'event')
throw new abi_js_1.AbiEventSignatureNotFoundError(signature, { docsPath });
const { name, inputs } = abiItem;
const isUnnamed = inputs?.some((x) => !('name' in x && x.name));
let args = isUnnamed ? [] : {};
const indexedInputs = inputs.filter((x) => 'indexed' in x && x.indexed);
for (let i = 0; i < indexedInputs.length; i++) {
const param = indexedInputs[i];
const topic = argTopics[i];
if (!topic)
throw new abi_js_1.DecodeLogTopicsMismatch({
abiItem,
param: param,
});
args[isUnnamed ? i : param.name || i] = decodeTopic({ param, value: topic });
}
const nonIndexedInputs = inputs.filter((x) => !('indexed' in x && x.indexed));
if (nonIndexedInputs.length > 0) {
if (data && data !== '0x') {
try {
const decodedData = (0, decodeAbiParameters_js_1.decodeAbiParameters)(nonIndexedInputs, data);
if (decodedData) {
if (isUnnamed)
args = [...args, ...decodedData];
else {
for (let i = 0; i < nonIndexedInputs.length; i++) {
args[nonIndexedInputs[i].name] = decodedData[i];
}
}
}
}
catch (err) {
if (strict) {
if (err instanceof abi_js_1.AbiDecodingDataSizeTooSmallError ||
err instanceof cursor_js_1.PositionOutOfBoundsError)
throw new abi_js_1.DecodeLogDataMismatch({
abiItem,
data: data,
params: nonIndexedInputs,
size: (0, size_js_1.size)(data),
});
throw err;
}
}
}
else if (strict) {
throw new abi_js_1.DecodeLogDataMismatch({
abiItem,
data: '0x',
params: nonIndexedInputs,
size: 0,
});
}
}
return {
eventName: name,
args: Object.values(args).length > 0 ? args : undefined,
};
}
function decodeTopic({ param, value }) {
if (param.type === 'string' ||
param.type === 'bytes' ||
param.type === 'tuple' ||
param.type.match(/^(.*)\[(\d+)?\]$/))
return value;
const decodedArg = (0, decodeAbiParameters_js_1.decodeAbiParameters)([param], value) || [];
return decodedArg[0];
}
//# sourceMappingURL=decodeEventLog.js.map