ox
Version:
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JavaScript
import * as abitype from 'abitype';
import * as AbiItem from './AbiItem.js';
import * as AbiParameters from './AbiParameters.js';
import * as Address from './Address.js';
import * as Bytes from './Bytes.js';
import * as Errors from './Errors.js';
import * as Hash from './Hash.js';
import * as Hex from './Hex.js';
import * as Cursor from './internal/cursor.js';
import { prettyPrint } from './internal/errors.js';
/**
* Asserts that the provided arguments match the decoded log arguments.
*
* @example
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const abiEvent = AbiEvent.from('event Transfer(address indexed from, address indexed to, uint256 value)')
*
* const args = AbiEvent.decode(abiEvent, {
* data: '0x0000000000000000000000000000000000000000000000000000000000000001',
* topics: [
* '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
* '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* ],
* })
*
* AbiEvent.assertArgs(abiEvent, args, {
* from: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad',
* to: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* value: 1n,
* })
*
* // @error: AbiEvent.ArgsMismatchError: Given arguments to not match the arguments decoded from the log.
* // @error: Event: event Transfer(address indexed from, address indexed to, uint256 value)
* // @error: Expected Arguments:
* // @error: from: 0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac
* // @error: to: 0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad
* // @error: value: 1
* // @error: Given Arguments:
* // @error: from: 0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad
* // @error: to: 0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac
* // @error: value: 1
* ```
*
* @param abiEvent - ABI Event to check.
* @param args - Decoded arguments.
* @param matchArgs - The arguments to check.
*/
export 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,
});
}
}
/**
* ABI-Decodes the provided [Log Topics and Data](https://info.etherscan.com/what-is-event-logs/) according to the ABI Event's parameter types (`input`).
*
* :::tip
*
* This function is typically used to decode an [Event Log](https://info.etherscan.com/what-is-event-logs/) that may be returned from a Log Query (e.g. `eth_getLogs`) or Transaction Receipt.
*
* See the [End-to-end Example](#end-to-end).
*
* :::
*
* @example
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const transfer = AbiEvent.from(
* 'event Transfer(address indexed from, address indexed to, uint256 value)'
* )
*
* const log = {
* // ...
* data: '0x0000000000000000000000000000000000000000000000000000000000000001',
* topics: [
* '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
* '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* ],
* } as const
*
* const decoded = AbiEvent.decode(transfer, log)
* // @log: {
* // @log: from: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* // @log: to: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* // @log: value: 1n
* // @log: }
* ```
*
* @example
* ### End-to-end
*
* Below is an end-to-end example of using `AbiEvent.decode` to decode the topics of a `Transfer` event on the [Wagmi Mint Example contract](https://etherscan.io/address/0xfba3912ca04dd458c843e2ee08967fc04f3579c2).
*
* ```ts twoslash
* import 'ox/window'
* import { AbiEvent, Hex } from 'ox'
*
* // 1. Instantiate the `Transfer` ABI Event.
* const transfer = AbiEvent.from(
* 'event Transfer(address indexed from, address indexed to, uint256 value)',
* )
*
* // 2. Encode the ABI Event into Event Topics.
* const { topics } = AbiEvent.encode(transfer)
*
* // 3. Query for events matching the encoded Topics.
* const logs = await window.ethereum!.request({
* method: 'eth_getLogs',
* params: [
* {
* address: '0xfba3912ca04dd458c843e2ee08967fc04f3579c2',
* fromBlock: Hex.fromNumber(19760235n),
* toBlock: Hex.fromNumber(19760240n),
* topics,
* },
* ],
* })
*
* // 4. Decode the Log. // [!code focus]
* const decoded = AbiEvent.decode(transfer, logs[0]!) // [!code focus]
* // @log: {
* // @log: from: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* // @log: to: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* // @log: value: 603n
* // @log: }
* ```
*
* :::note
*
* For simplicity, the above example uses `window.ethereum.request`, but you can use any
* type of JSON-RPC interface.
*
* :::
*
* @param abiEvent - The ABI Event to decode.
* @param log - `topics` & `data` to decode.
* @returns The decoded event.
*/
export 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 ? [] : {};
// Decode topics (indexed args).
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];
})();
}
// Decode data (non-indexed args).
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;
}
/**
* ABI-encodes the provided event input (`inputs`) into an array of [Event Topics](https://info.etherscan.com/what-is-event-logs/).
*
* :::tip
*
* This function is typically used to encode event arguments into [Event Topics](https://info.etherscan.com/what-is-event-logs/).
*
* See the [End-to-end Example](#end-to-end).
*
* :::
*
* @example
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const transfer = AbiEvent.from(
* 'event Transfer(address indexed from, address indexed to, uint256 value)'
* )
*
* const { topics } = AbiEvent.encode(transfer)
* // @log: ['0x406dade31f7ae4b5dbc276258c28dde5ae6d5c2773c5745802c493a2360e55e0']
* ```
*
* @example
* ### Passing Arguments
*
* You can pass `indexed` parameter values to `AbiEvent.encode`.
*
* TypeScript types will be inferred from the ABI Event, to guard you from inserting the wrong values.
*
* For example, the `Transfer` event below accepts an `address` type for the `from` and `to` attributes.
*
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const transfer = AbiEvent.from(
* 'event Transfer(address indexed from, address indexed to, uint256 value)'
* )
*
* const { topics } = AbiEvent.encode(transfer, {
* from: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266', // [!code hl]
* to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8' // [!code hl]
* })
* // @log: [
* // @log: '0x406dade31f7ae4b5dbc276258c28dde5ae6d5c2773c5745802c493a2360e55e0',
* // @log: '0x00000000000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
* // @log: '0x0000000000000000000000000000000070997970c51812dc3a010c7d01b50e0d17dc79c8'
* // @log: ]
* ```
*
* @example
* ### End-to-end
*
* Below is an end-to-end example of using `AbiEvent.encode` to encode the topics of a `Transfer` event and query for events matching the encoded topics on the [Wagmi Mint Example contract](https://etherscan.io/address/0xfba3912ca04dd458c843e2ee08967fc04f3579c2).
*
* ```ts twoslash
* import 'ox/window'
* import { AbiEvent, Hex } from 'ox'
*
* // 1. Instantiate the `Transfer` ABI Event.
* const transfer = AbiEvent.from(
* 'event Transfer(address indexed from, address indexed to, uint256 value)',
* )
*
* // 2. Encode the ABI Event into Event Topics.
* const { topics } = AbiEvent.encode(transfer)
*
* // 3. Query for events matching the encoded Topics.
* const logs = await window.ethereum!.request({
* method: 'eth_getLogs',
* params: [
* {
* address: '0xfba3912ca04dd458c843e2ee08967fc04f3579c2',
* fromBlock: Hex.fromNumber(19760235n),
* toBlock: Hex.fromNumber(19760240n),
* topics,
* },
* ],
* })
* // @log: [
* // @log: "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
* // @log: "0x0000000000000000000000000000000000000000000000000000000000000000",
* // @log: "0x0000000000000000000000000c04d9e9278ec5e4d424476d3ebec70cb5d648d1",
* // @log: "0x000000000000000000000000000000000000000000000000000000000000025b",
* // @log: ]
* ```
*
* :::note
*
* For simplicity, the above example uses `window.ethereum.request`, but you can use any
* type of JSON-RPC interface.
*
* :::
*
* @param abiEvent - The event to encode.
* @param args - The arguments to encode.
* @returns The encoded event topics.
*/
export 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] };
}
/**
* Formats an {@link ox#AbiEvent.AbiEvent} into a **Human Readable ABI Error**.
*
* @example
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const formatted = AbiEvent.format({
* type: 'event',
* name: 'Transfer',
* inputs: [
* { name: 'from', type: 'address', indexed: true },
* { name: 'to', type: 'address', indexed: true },
* { name: 'value', type: 'uint256' },
* ],
* })
*
* formatted
* // ^?
*
*
* ```
*
* @param abiEvent - The ABI Event to format.
* @returns The formatted ABI Event.
*/
export function format(abiEvent) {
return abitype.formatAbiItem(abiEvent);
}
/**
* Parses an arbitrary **JSON ABI Event** or **Human Readable ABI Event** into a typed {@link ox#AbiEvent.AbiEvent}.
*
* @example
* ### JSON ABIs
*
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const transfer = AbiEvent.from({
* name: 'Transfer',
* type: 'event',
* inputs: [
* { name: 'from', type: 'address', indexed: true },
* { name: 'to', type: 'address', indexed: true },
* { name: 'value', type: 'uint256' },
* ],
* })
*
* transfer
* //^?
*
*
*
*
*
*
*
*
*
*
*
*
* ```
*
* @example
* ### Human Readable ABIs
*
* A Human Readable ABI can be parsed into a typed ABI object:
*
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const transfer = AbiEvent.from(
* 'event Transfer(address indexed from, address indexed to, uint256 value)' // [!code hl]
* )
*
* transfer
* //^?
*
*
*
*
*
*
*
*
*
*
*
*
*
* ```
*
* @param abiEvent - The ABI Event to parse.
* @returns Typed ABI Event.
*/
export function from(abiEvent, options = {}) {
return AbiItem.from(abiEvent, options);
}
/**
* Extracts an {@link ox#AbiEvent.AbiEvent} from an {@link ox#Abi.Abi} given a name and optional arguments.
*
* @example
* ### Extracting by Name
*
* ABI Events can be extracted by their name using the `name` option:
*
* ```ts twoslash
* import { Abi, AbiEvent } from 'ox'
*
* const abi = Abi.from([
* 'function foo()',
* 'event Transfer(address owner, address to, uint256 tokenId)',
* 'function bar(string a) returns (uint256 x)',
* ])
*
* const item = AbiEvent.fromAbi(abi, 'Transfer') // [!code focus]
* // ^?
*
*
*
*
*
*
* ```
*
* @example
* ### Extracting by Selector
*
* ABI Events can be extract by their selector when {@link ox#Hex.Hex} is provided to `name`.
*
* ```ts twoslash
* import { Abi, AbiEvent } from 'ox'
*
* const abi = Abi.from([
* 'function foo()',
* 'event Transfer(address owner, address to, uint256 tokenId)',
* 'function bar(string a) returns (uint256 x)',
* ])
* const item = AbiEvent.fromAbi(abi, '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef') // [!code focus]
* // ^?
*
*
*
*
*
*
*
*
*
* ```
*
* :::note
*
* Extracting via a hex selector is useful when extracting an ABI Event from the first topic of a Log.
*
* :::
*
* @param abi - The ABI to extract from.
* @param name - The name (or selector) of the ABI item to extract.
* @param options - Extraction options.
* @returns The ABI item.
*/
export 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;
}
/**
* Computes the event selector (hash of event signature) for an {@link ox#AbiEvent.AbiEvent}.
*
* @example
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const selector = AbiEvent.getSelector('event Transfer(address indexed from, address indexed to, uint256 value)')
* // @log: '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f556a2'
* ```
*
* @example
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const selector = AbiEvent.getSelector({
* name: 'Transfer',
* type: 'event',
* inputs: [
* { name: 'from', type: 'address', indexed: true },
* { name: 'to', type: 'address', indexed: true },
* { name: 'value', type: 'uint256' }
* ]
* })
* // @log: '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f556a2'
* ```
*
* @param abiItem - The ABI event to compute the selector for.
* @returns The {@link ox#Hash.(keccak256:function)} hash of the event signature.
*/
export function getSelector(abiItem) {
return AbiItem.getSignatureHash(abiItem);
}
/**
* Thrown when the provided arguments do not match the expected arguments.
*
* @example
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const abiEvent = AbiEvent.from(
* 'event Transfer(address indexed from, address indexed to, uint256 value)',
* )
*
* const args = AbiEvent.decode(abiEvent, {
* data: '0x0000000000000000000000000000000000000000000000000000000000000001',
* topics: [
* '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
* '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad',
* ],
* })
*
* AbiEvent.assertArgs(abiEvent, args, {
* from: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad',
* to: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* value: 1n,
* })
* // @error: AbiEvent.ArgsMismatchError: Given arguments do not match the expected arguments.
* // @error: Event: event Transfer(address indexed from, address indexed to, uint256 value)
* // @error: Expected Arguments:
* // @error: from: 0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac
* // @error: to: 0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad
* // @error: value: 1
* // @error: Given Arguments:
* // @error: from: 0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad
* // @error: to: 0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac
* // @error: value: 1
* ```
*
* ### Solution
*
* The provided arguments need to match the expected arguments.
*
* ```ts twoslash
* // @noErrors
* import { AbiEvent } from 'ox'
*
* const abiEvent = AbiEvent.from(
* 'event Transfer(address indexed from, address indexed to, uint256 value)',
* )
*
* const args = AbiEvent.decode(abiEvent, {
* data: '0x0000000000000000000000000000000000000000000000000000000000000001',
* topics: [
* '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
* '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad',
* ],
* })
*
* AbiEvent.assertArgs(abiEvent, args, {
* from: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad', // [!code --]
* from: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac', // [!code ++]
* to: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac', // [!code --]
* to: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad', // [!code ++]
* value: 1n,
* })
* ```
*/
export 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 ? prettyPrint(expected) : undefined,
`Given Arguments: ${!given ? 'None' : ''}`,
given ? prettyPrint(given) : undefined,
],
});
Object.defineProperty(this, "name", {
enumerable: true,
configurable: true,
writable: true,
value: 'AbiEvent.ArgsMismatchError'
});
}
}
/**
* Thrown when no argument was found on the event signature.
*
* @example
* ```ts twoslash
* // @noErrors
* import { AbiEvent } from 'ox'
*
* const abiEvent = AbiEvent.from(
* 'event Transfer(address indexed from, address indexed to, uint256 value)',
* )
*
* const args = AbiEvent.decode(abiEvent, {
* data: '0x0000000000000000000000000000000000000000000000000000000000000001',
* topics: [
* '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
* '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad',
* ],
* })
*
* AbiEvent.assertArgs(abiEvent, args, {
* a: 'b',
* from: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* to: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad',
* value: 1n,
* })
* // @error: AbiEvent.InputNotFoundError: Parameter "a" not found on `event Transfer(address indexed from, address indexed to, uint256 value)`.
* ```
*
* ### Solution
*
* Ensure the arguments match the event signature.
*
* ```ts twoslash
* // @noErrors
* import { AbiEvent } from 'ox'
*
* const abiEvent = AbiEvent.from(
* 'event Transfer(address indexed from, address indexed to, uint256 value)',
* )
*
* const args = AbiEvent.decode(abiEvent, {
* data: '0x0000000000000000000000000000000000000000000000000000000000000001',
* topics: [
* '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
* '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad',
* ],
* })
*
* AbiEvent.assertArgs(abiEvent, args, {
* a: 'b', // [!code --]
* from: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* to: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad',
* value: 1n,
* })
* ```
*/
export 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'
});
}
}
/**
* Thrown when the provided data size does not match the expected size from the non-indexed parameters.
*
* @example
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const abiEvent = AbiEvent.from(
* 'event Transfer(address indexed from, address to, uint256 value)',
* // ↑ 32 bytes + ↑ 32 bytes = 64 bytes
* )
*
* const args = AbiEvent.decode(abiEvent, {
* data: '0x0000000000000000000000000000000000000000000000000000000023c34600',
* // ↑ 32 bytes ❌
* topics: [
* '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
* '0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
* ],
* })
* // @error: AbiEvent.DataMismatchError: Data size of 32 bytes is too small for non-indexed event parameters.
* // @error: Non-indexed Parameters: (address to, uint256 value)
* // @error: Data: 0x0000000000000000000000000000000000000000000000000000000023c34600 (32 bytes)
* ```
*
* ### Solution
*
* Ensure that the data size matches the expected size.
*
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const abiEvent = AbiEvent.from(
* 'event Transfer(address indexed from, address to, uint256 value)',
* // ↑ 32 bytes + ↑ 32 bytes = 64 bytes
* )
*
* const args = AbiEvent.decode(abiEvent, {
* data: '0x0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb922660000000000000000000000000000000000000000000000000000000023c34600',
* // ↑ 64 bytes ✅
* topics: [
* '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
* '0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
* ],
* })
* ```
*/
export 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;
}
}
/**
* Thrown when the provided topics do not match the expected number of topics.
*
* @example
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const abiEvent = AbiEvent.from(
* 'event Transfer(address indexed from, address indexed to, uint256 value)',
* )
*
* const args = AbiEvent.decode(abiEvent, {
* data: '0x0000000000000000000000000000000000000000000000000000000000000001',
* topics: [
* '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
* '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* ],
* })
* // @error: AbiEvent.TopicsMismatchError: Expected a topic for indexed event parameter "to" for "event Transfer(address indexed from, address indexed to, uint256 value)".
* ```
*
* ### Solution
*
* Ensure that the topics match the expected number of topics.
*
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const abiEvent = AbiEvent.from(
* 'event Transfer(address indexed from, address indexed to, uint256 value)',
* )
*
* const args = AbiEvent.decode(abiEvent, {
* data: '0x0000000000000000000000000000000000000000000000000000000000000001',
* topics: [
* '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
* '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
* '0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266', // [!code ++]
* ],
* })
* ```
*
*/
export 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;
}
}
/**
* Thrown when the provided selector does not match the expected selector.
*
* @example
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const transfer = AbiEvent.from(
* 'event Transfer(address indexed from, address indexed to, bool sender)',
* )
*
* AbiEvent.decode(transfer, {
* topics: [
* '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
* '0x000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa96045',
* '0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
* ],
* })
* // @error: AbiEvent.SelectorTopicMismatchError: topics[0]="0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef" does not match the expected topics[0]="0x3da3cd3cf420c78f8981e7afeefa0eab1f0de0eb56e78ad9ba918ed01c0b402f".
* // @error: Event: event Transfer(address indexed from, address indexed to, bool sender)
* // @error: Selector: 0x3da3cd3cf420c78f8981e7afeefa0eab1f0de0eb56e78ad9ba918ed01c0b402f
* ```
*
* ### Solution
*
* Ensure that the provided selector matches the selector of the event signature.
*
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const transfer = AbiEvent.from(
* 'event Transfer(address indexed from, address indexed to, bool sender)',
* )
*
* AbiEvent.decode(transfer, {
* topics: [
* '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef', // [!code --]
* '0x3da3cd3cf420c78f8981e7afeefa0eab1f0de0eb56e78ad9ba918ed01c0b402f', // [!code ++]
* '0x000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa96045',
* '0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
* ],
* })
* ```
*/
export 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: ${expected}`],
});
Object.defineProperty(this, "name", {
enumerable: true,
configurable: true,
writable: true,
value: 'AbiEvent.SelectorTopicMismatchError'
});
}
}
/**
* Thrown when the provided filter type is not supported.
*
* @example
* ```ts twoslash
* import { AbiEvent } from 'ox'
*
* const transfer = AbiEvent.from('event Transfer((string) indexed a, string b)')
*
* AbiEvent.encode(transfer, {
* a: ['hello'],
* })
* // @error: AbiEvent.FilterTypeNotSupportedError: Filter type "tuple" is not supported.
* ```
*
* ### Solution
*
* Provide a valid event input type.
*
* ```ts twoslash
* // @noErrors
* import { AbiEvent } from 'ox'
*
* const transfer = AbiEvent.from('event Transfer((string) indexed a, string b)') // [!code --]
* const transfer = AbiEvent.from('event Transfer(string indexed a, string b)') // [!code ++]
* ```
*
*
*/
export class FilterTypeNotSupportedError extends Errors.BaseError {
constructor(type) {
super(`Filter type "${type}" is not supported.`);
Object.defineProperty(this, "name", {
enumerable: true,
configurable: true,
writable: true,
value: 'AbiEvent.FilterTypeNotSupportedError'
});
}
}
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