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JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.FilterTypeNotSupportedError = exports.SelectorTopicMismatchError = exports.TopicsMismatchError = exports.DataMismatchError = exports.InputNotFoundError = exports.ArgsMismatchError = void 0;
exports.assertArgs = assertArgs;
exports.decode = decode;
exports.encode = encode;
exports.format = format;
exports.from = from;
exports.fromAbi = fromAbi;
exports.getSelector = getSelector;
const abitype = require("abitype");
const AbiItem = require("./AbiItem.js");
const AbiParameters = require("./AbiParameters.js");
const Address = require("./Address.js");
const Bytes = require("./Bytes.js");
const Errors = require("./Errors.js");
const Hash = require("./Hash.js");
const Hex = require("./Hex.js");
const Cursor = require("./internal/cursor.js");
const errors_js_1 = require("./internal/errors.js");
function assertArgs(abiEvent, args, matchArgs) {
if (!args || !matchArgs)
throw new ArgsMismatchError({
abiEvent,
expected: args,
given: matchArgs,
});
function isEqual(input, value, arg) {
if (input.type === 'address')
return Address.isEqual(value, arg);
if (input.type === 'string')
return Hash.keccak256(Bytes.fromString(value)) === arg;
if (input.type === 'bytes')
return Hash.keccak256(value) === arg;
return value === arg;
}
if (Array.isArray(args) && Array.isArray(matchArgs)) {
for (const [index, value] of matchArgs.entries()) {
if (value === null || value === undefined)
continue;
const input = abiEvent.inputs[index];
if (!input)
throw new InputNotFoundError({
abiEvent,
name: `${index}`,
});
const value_ = Array.isArray(value) ? value : [value];
let equal = false;
for (const value of value_) {
if (isEqual(input, value, args[index]))
equal = true;
}
if (!equal)
throw new ArgsMismatchError({
abiEvent,
expected: args,
given: matchArgs,
});
}
}
if (typeof args === 'object' &&
!Array.isArray(args) &&
typeof matchArgs === 'object' &&
!Array.isArray(matchArgs))
for (const [key, value] of Object.entries(matchArgs)) {
if (value === null || value === undefined)
continue;
const input = abiEvent.inputs.find((input) => input.name === key);
if (!input)
throw new InputNotFoundError({ abiEvent, name: key });
const value_ = Array.isArray(value) ? value : [value];
let equal = false;
for (const value of value_) {
if (isEqual(input, value, args[key]))
equal = true;
}
if (!equal)
throw new ArgsMismatchError({
abiEvent,
expected: args,
given: matchArgs,
});
}
}
function decode(abiEvent, log) {
const { data, topics } = log;
const [selector_, ...argTopics] = topics;
const selector = getSelector(abiEvent);
if (selector_ !== selector)
throw new SelectorTopicMismatchError({
abiEvent,
actual: selector_,
expected: selector,
});
const { inputs } = abiEvent;
const isUnnamed = inputs?.every((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 TopicsMismatchError({
abiEvent,
param: param,
});
args[isUnnamed ? i : param.name || i] = (() => {
if (param.type === 'string' ||
param.type === 'bytes' ||
param.type === 'tuple' ||
param.type.match(/^(.*)\[(\d+)?\]$/))
return topic;
const decoded = AbiParameters.decode([param], topic) || [];
return decoded[0];
})();
}
const nonIndexedInputs = inputs.filter((x) => !('indexed' in x && x.indexed));
if (nonIndexedInputs.length > 0) {
if (data && data !== '0x') {
try {
const decodedData = AbiParameters.decode(nonIndexedInputs, data);
if (decodedData) {
if (isUnnamed)
args = [...args, ...decodedData];
else {
for (let i = 0; i < nonIndexedInputs.length; i++) {
const index = inputs.indexOf(nonIndexedInputs[i]);
args[nonIndexedInputs[i].name || index] = decodedData[i];
}
}
}
}
catch (err) {
if (err instanceof AbiParameters.DataSizeTooSmallError ||
err instanceof Cursor.PositionOutOfBoundsError)
throw new DataMismatchError({
abiEvent,
data: data,
parameters: nonIndexedInputs,
size: Hex.size(data),
});
throw err;
}
}
else {
throw new DataMismatchError({
abiEvent,
data: '0x',
parameters: nonIndexedInputs,
size: 0,
});
}
}
return Object.values(args).length > 0 ? args : undefined;
}
function encode(abiEvent, ...[args]) {
let topics = [];
if (args && abiEvent.inputs) {
const indexedInputs = abiEvent.inputs.filter((param) => 'indexed' in param && param.indexed);
const args_ = Array.isArray(args)
? args
: Object.values(args).length > 0
? indexedInputs?.map((x, i) => args[x.name ?? i]) ?? []
: [];
if (args_.length > 0) {
const encode = (param, value) => {
if (param.type === 'string')
return Hash.keccak256(Hex.fromString(value));
if (param.type === 'bytes')
return Hash.keccak256(value);
if (param.type === 'tuple' || param.type.match(/^(.*)\[(\d+)?\]$/))
throw new FilterTypeNotSupportedError(param.type);
return AbiParameters.encode([param], [value]);
};
topics =
indexedInputs?.map((param, i) => {
if (Array.isArray(args_[i]))
return args_[i].map((_, j) => encode(param, args_[i][j]));
return typeof args_[i] !== 'undefined' && args_[i] !== null
? encode(param, args_[i])
: null;
}) ?? [];
}
}
const selector = (() => {
if (abiEvent.hash)
return abiEvent.hash;
return getSelector(abiEvent);
})();
return { topics: [selector, ...topics] };
}
function format(abiEvent) {
return abitype.formatAbiItem(abiEvent);
}
function from(abiEvent, options = {}) {
return AbiItem.from(abiEvent, options);
}
function fromAbi(abi, name, options) {
const item = AbiItem.fromAbi(abi, name, options);
if (item.type !== 'event')
throw new AbiItem.NotFoundError({ name, type: 'event' });
return item;
}
function getSelector(abiItem) {
return AbiItem.getSignatureHash(abiItem);
}
class ArgsMismatchError extends Errors.BaseError {
constructor({ abiEvent, expected, given, }) {
super('Given arguments do not match the expected arguments.', {
metaMessages: [
`Event: ${format(abiEvent)}`,
`Expected Arguments: ${!expected ? 'None' : ''}`,
expected ? (0, errors_js_1.prettyPrint)(expected) : undefined,
`Given Arguments: ${!given ? 'None' : ''}`,
given ? (0, errors_js_1.prettyPrint)(given) : undefined,
],
});
Object.defineProperty(this, "name", {
enumerable: true,
configurable: true,
writable: true,
value: 'AbiEvent.ArgsMismatchError'
});
}
}
exports.ArgsMismatchError = ArgsMismatchError;
class InputNotFoundError extends Errors.BaseError {
constructor({ abiEvent, name, }) {
super(`Parameter "${name}" not found on \`${format(abiEvent)}\`.`);
Object.defineProperty(this, "name", {
enumerable: true,
configurable: true,
writable: true,
value: 'AbiEvent.InputNotFoundError'
});
}
}
exports.InputNotFoundError = InputNotFoundError;
class DataMismatchError extends Errors.BaseError {
constructor({ abiEvent, data, parameters, size, }) {
super([
`Data size of ${size} bytes is too small for non-indexed event parameters.`,
].join('\n'), {
metaMessages: [
`Non-indexed Parameters: (${AbiParameters.format(parameters)})`,
`Data: ${data} (${size} bytes)`,
],
});
Object.defineProperty(this, "name", {
enumerable: true,
configurable: true,
writable: true,
value: 'AbiEvent.DataMismatchError'
});
Object.defineProperty(this, "abiEvent", {
enumerable: true,
configurable: true,
writable: true,
value: void 0
});
Object.defineProperty(this, "data", {
enumerable: true,
configurable: true,
writable: true,
value: void 0
});
Object.defineProperty(this, "parameters", {
enumerable: true,
configurable: true,
writable: true,
value: void 0
});
Object.defineProperty(this, "size", {
enumerable: true,
configurable: true,
writable: true,
value: void 0
});
this.abiEvent = abiEvent;
this.data = data;
this.parameters = parameters;
this.size = size;
}
}
exports.DataMismatchError = DataMismatchError;
class TopicsMismatchError extends Errors.BaseError {
constructor({ abiEvent, param, }) {
super([
`Expected a topic for indexed event parameter${param.name ? ` "${param.name}"` : ''} for "${format(abiEvent)}".`,
].join('\n'));
Object.defineProperty(this, "name", {
enumerable: true,
configurable: true,
writable: true,
value: 'AbiEvent.TopicsMismatchError'
});
Object.defineProperty(this, "abiEvent", {
enumerable: true,
configurable: true,
writable: true,
value: void 0
});
this.abiEvent = abiEvent;
}
}
exports.TopicsMismatchError = TopicsMismatchError;
class SelectorTopicMismatchError extends Errors.BaseError {
constructor({ abiEvent, actual, expected, }) {
super(`topics[0]="${actual}" does not match the expected topics[0]="${expected}".`, {
metaMessages: [`Event: ${format(abiEvent)}`, `Selector: ${expected}`],
});
Object.defineProperty(this, "name", {
enumerable: true,
configurable: true,
writable: true,
value: 'AbiEvent.SelectorTopicMismatchError'
});
}
}
exports.SelectorTopicMismatchError = SelectorTopicMismatchError;
class FilterTypeNotSupportedError extends Errors.BaseError {
constructor(type) {
super(`Filter type "${type}" is not supported.`);
Object.defineProperty(this, "name", {
enumerable: true,
configurable: true,
writable: true,
value: 'AbiEvent.FilterTypeNotSupportedError'
});
}
}
exports.FilterTypeNotSupportedError = FilterTypeNotSupportedError;
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