486 lines
15 KiB
TypeScript
486 lines
15 KiB
TypeScript
/**
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* About Errors.
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*
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* @_section: api/utils/errors:Errors [about-errors]
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*/
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import type { TransactionRequest, TransactionReceipt, TransactionResponse } from "../providers/index.js";
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import type { FetchRequest, FetchResponse } from "./fetch.js";
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export type ErrorInfo<T> = Omit<T, "code" | "name" | "message">;
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/**
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* All errors emitted by ethers have an **ErrorCode** to help
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* identify and coalesce errors to simplfy programatic analysis.
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*
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* Each **ErrorCode** is the %%code%% proerty of a coresponding
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* [[EthersError]].
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*
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* **Generic Errors**
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*
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* **``"UNKNOWN_ERROR"``** - see [[UnknownError]]
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*
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* **``"NOT_IMPLEMENTED"``** - see [[NotImplementedError]]
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*
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* **``"UNSUPPORTED_OPERATION"``** - see [[UnsupportedOperationError]]
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*
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* **``"NETWORK_ERROR"``** - see [[NetworkError]]
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*
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* **``"SERVER_ERROR"``** - see [[ServerError]]
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*
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* **``"TIMEOUT"``** - see [[TimeoutError]]
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*
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* **``"BAD_DATA"``** - see [[BadDataError]]
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*
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* **``"CANCELLED"``** - see [[CancelledError]]
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*
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* **Operational Errors**
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*
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* **``"BUFFER_OVERRUN"``** - see [[BufferOverrunError]]
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*
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* **``"NUMERIC_FAULT"``** - see [[NumericFaultError]]
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*
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* **Argument Errors**
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*
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* **``"INVALID_ARGUMENT"``** - see [[InvalidArgumentError]]
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*
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* **``"MISSING_ARGUMENT"``** - see [[MissingArgumentError]]
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*
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* **``"UNEXPECTED_ARGUMENT"``** - see [[UnexpectedArgumentError]]
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*
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* **``"VALUE_MISMATCH"``** - //unused//
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*
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* **Blockchain Errors**
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*
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* **``"CALL_EXCEPTION"``** - see [[CallExceptionError]]
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*
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* **``"INSUFFICIENT_FUNDS"``** - see [[InsufficientFundsError]]
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*
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* **``"NONCE_EXPIRED"``** - see [[NonceExpiredError]]
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*
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* **``"REPLACEMENT_UNDERPRICED"``** - see [[ReplacementUnderpricedError]]
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*
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* **``"TRANSACTION_REPLACED"``** - see [[TransactionReplacedError]]
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*
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* **``"UNCONFIGURED_NAME"``** - see [[UnconfiguredNameError]]
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*
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* **``"OFFCHAIN_FAULT"``** - see [[OffchainFaultError]]
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*
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* **User Interaction Errors**
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*
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* **``"ACTION_REJECTED"``** - see [[ActionRejectedError]]
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*/
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export type ErrorCode = "UNKNOWN_ERROR" | "NOT_IMPLEMENTED" | "UNSUPPORTED_OPERATION" | "NETWORK_ERROR" | "SERVER_ERROR" | "TIMEOUT" | "BAD_DATA" | "CANCELLED" | "BUFFER_OVERRUN" | "NUMERIC_FAULT" | "INVALID_ARGUMENT" | "MISSING_ARGUMENT" | "UNEXPECTED_ARGUMENT" | "VALUE_MISMATCH" | "CALL_EXCEPTION" | "INSUFFICIENT_FUNDS" | "NONCE_EXPIRED" | "REPLACEMENT_UNDERPRICED" | "TRANSACTION_REPLACED" | "UNCONFIGURED_NAME" | "OFFCHAIN_FAULT" | "ACTION_REJECTED";
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/**
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* All errors in Ethers include properties to assist in
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* machine-readable errors.
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*/
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export interface EthersError<T extends ErrorCode = ErrorCode> extends Error {
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/**
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* The string error code.
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*/
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code: ErrorCode;
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/**
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* Additional info regarding the error that may be useful.
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*
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* This is generally helpful mostly for human-based debugging.
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*/
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info?: Record<string, any>;
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/**
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* Any related error.
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*/
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error?: Error;
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}
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/**
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* This Error is a catch-all for when there is no way for Ethers to
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* know what the underlying problem is.
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*/
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export interface UnknownError extends EthersError<"UNKNOWN_ERROR"> {
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[key: string]: any;
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}
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/**
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* This Error is mostly used as a stub for functionality that is
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* intended for the future, but is currently not implemented.
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*/
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export interface NotImplementedError extends EthersError<"NOT_IMPLEMENTED"> {
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/**
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* The attempted operation.
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*/
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operation: string;
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}
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/**
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* This Error indicates that the attempted operation is not supported.
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*
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* This could range from a specifc JSON-RPC end-point not supporting
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* a feature to a specific configuration of an object prohibiting the
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* operation.
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*
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* For example, a [[Wallet]] with no connected [[Provider]] is unable
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* to send a transaction.
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*/
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export interface UnsupportedOperationError extends EthersError<"UNSUPPORTED_OPERATION"> {
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/**
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* The attempted operation.
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*/
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operation: string;
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}
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export interface NetworkError extends EthersError<"NETWORK_ERROR"> {
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event: string;
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}
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/**
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* This Error indicates there was a problem fetching a resource from
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* a server.
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*/
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export interface ServerError extends EthersError<"SERVER_ERROR"> {
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/**
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* The requested resource.
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*/
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request: FetchRequest | string;
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/**
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* The response received from the server, if available.
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*/
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response?: FetchResponse;
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}
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/**
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* This Error indicates that the timeout duration has expired and
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* that the operation has been implicitly cancelled.
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*
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* The side-effect of the operation may still occur, as this
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* generally means a request has been sent and there has simply
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* been no response to indicate whether it was processed or not.
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*/
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export interface TimeoutError extends EthersError<"TIMEOUT"> {
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/**
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* The attempted operation.
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*/
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operation: string;
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/**
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* The reason.
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*/
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reason: string;
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/**
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* The resource request, if available.
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*/
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request?: FetchRequest;
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}
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/**
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* This Error indicates that a provided set of data cannot
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* be correctly interpretted.
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*/
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export interface BadDataError extends EthersError<"BAD_DATA"> {
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/**
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* The data.
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*/
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value: any;
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}
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/**
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* This Error indicates that the operation was cancelled by a
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* programmatic call, for example to ``cancel()``.
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*/
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export interface CancelledError extends EthersError<"CANCELLED"> {
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}
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/**
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* This Error indicates an attempt was made to read outside the bounds
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* of protected data.
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*
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* Most operations in Ethers are protected by bounds checks, to mitigate
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* exploits when parsing data.
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*/
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export interface BufferOverrunError extends EthersError<"BUFFER_OVERRUN"> {
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/**
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* The buffer that was overrun.
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*/
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buffer: Uint8Array;
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/**
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* The length of the buffer.
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*/
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length: number;
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/**
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* The offset that was requested.
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*/
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offset: number;
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}
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/**
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* This Error indicates an operation which would result in incorrect
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* arithmetic output has occurred.
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*
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* For example, trying to divide by zero or using a ``uint8`` to store
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* a negative value.
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*/
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export interface NumericFaultError extends EthersError<"NUMERIC_FAULT"> {
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/**
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* The attempted operation.
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*/
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operation: string;
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/**
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* The fault reported.
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*/
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fault: string;
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/**
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* The value the operation was attempted against.
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*/
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value: any;
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}
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/**
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* This Error indicates an incorrect type or value was passed to
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* a function or method.
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*/
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export interface InvalidArgumentError extends EthersError<"INVALID_ARGUMENT"> {
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/**
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* The name of the argument.
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*/
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argument: string;
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/**
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* The value that was provided.
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*/
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value: any;
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info?: Record<string, any>;
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}
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/**
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* This Error indicates there were too few arguments were provided.
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*/
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export interface MissingArgumentError extends EthersError<"MISSING_ARGUMENT"> {
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/**
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* The number of arguments received.
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*/
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count: number;
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/**
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* The number of arguments expected.
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*/
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expectedCount: number;
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}
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/**
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* This Error indicates too many arguments were provided.
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*/
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export interface UnexpectedArgumentError extends EthersError<"UNEXPECTED_ARGUMENT"> {
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/**
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* The number of arguments received.
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*/
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count: number;
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/**
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* The number of arguments expected.
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*/
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expectedCount: number;
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}
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/**
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* The action that resulted in the error.
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*/
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export type CallExceptionAction = "call" | "estimateGas" | "getTransactionResult" | "unknown";
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/**
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* The related transaction that caused the error.
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*/
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export type CallExceptionTransaction = {
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to: null | string;
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from?: string;
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data: string;
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};
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/**
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* This **Error** indicates a transaction reverted.
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*/
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export interface CallExceptionError extends EthersError<"CALL_EXCEPTION"> {
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/**
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* The action being performed when the revert was encountered.
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*/
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action: CallExceptionAction;
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/**
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* The revert data returned.
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*/
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data: null | string;
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/**
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* A human-readable representation of data, if possible.
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*/
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reason: null | string;
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/**
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* The transaction that triggered the exception.
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*/
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transaction: CallExceptionTransaction;
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/**
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* The contract invocation details, if available.
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*/
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invocation: null | {
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method: string;
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signature: string;
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args: Array<any>;
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};
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/**
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* The built-in or custom revert error, if available
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*/
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revert: null | {
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signature: string;
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name: string;
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args: Array<any>;
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};
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}
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/**
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* The sending account has insufficient funds to cover the
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* entire transaction cost.
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*/
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export interface InsufficientFundsError extends EthersError<"INSUFFICIENT_FUNDS"> {
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/**
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* The transaction.
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*/
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transaction: TransactionRequest;
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}
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/**
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* The sending account has already used this nonce in a
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* transaction that has been included.
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*/
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export interface NonceExpiredError extends EthersError<"NONCE_EXPIRED"> {
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/**
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* The transaction.
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*/
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transaction: TransactionRequest;
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}
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/**
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* A CCIP-read exception, which cannot be recovered from or
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* be further processed.
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*/
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export interface OffchainFaultError extends EthersError<"OFFCHAIN_FAULT"> {
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/**
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* The transaction.
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*/
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transaction?: TransactionRequest;
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/**
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* The reason the CCIP-read failed.
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*/
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reason: string;
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}
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/**
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* An attempt was made to replace a transaction, but with an
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* insufficient additional fee to afford evicting the old
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* transaction from the memory pool.
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*/
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export interface ReplacementUnderpricedError extends EthersError<"REPLACEMENT_UNDERPRICED"> {
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/**
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* The transaction.
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*/
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transaction: TransactionRequest;
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}
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/**
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* A pending transaction was replaced by another.
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*/
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export interface TransactionReplacedError extends EthersError<"TRANSACTION_REPLACED"> {
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/**
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* If the transaction was cancelled, such that the original
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* effects of the transaction cannot be assured.
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*/
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cancelled: boolean;
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/**
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* The reason the transaction was replaced.
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*/
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reason: "repriced" | "cancelled" | "replaced";
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/**
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* The hash of the replaced transaction.
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*/
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hash: string;
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/**
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* The transaction that replaced the transaction.
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*/
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replacement: TransactionResponse;
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/**
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* The receipt of the transaction that replace the transaction.
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*/
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receipt: TransactionReceipt;
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}
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/**
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* This Error indicates an ENS name was used, but the name has not
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* been configured.
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*
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* This could indicate an ENS name is unowned or that the current
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* address being pointed to is the [[ZeroAddress]].
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*/
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export interface UnconfiguredNameError extends EthersError<"UNCONFIGURED_NAME"> {
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/**
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* The ENS name that was requested
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*/
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value: string;
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}
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/**
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* This Error indicates a request was rejected by the user.
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*
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* In most clients (such as MetaMask), when an operation requires user
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* authorization (such as ``signer.sendTransaction``), the client
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* presents a dialog box to the user. If the user denies the request
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* this error is thrown.
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*/
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export interface ActionRejectedError extends EthersError<"ACTION_REJECTED"> {
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/**
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* The requested action.
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*/
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action: "requestAccess" | "sendTransaction" | "signMessage" | "signTransaction" | "signTypedData" | "unknown";
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/**
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* The reason the action was rejected.
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*
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* If there is already a pending request, some clients may indicate
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* there is already a ``"pending"`` action. This prevents an app
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* from spamming the user.
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*/
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reason: "expired" | "rejected" | "pending";
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}
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/**
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* A conditional type that transforms the [[ErrorCode]] T into
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* its EthersError type.
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*
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* @flatworm-skip-docs
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*/
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export type CodedEthersError<T> = T extends "UNKNOWN_ERROR" ? UnknownError : T extends "NOT_IMPLEMENTED" ? NotImplementedError : T extends "UNSUPPORTED_OPERATION" ? UnsupportedOperationError : T extends "NETWORK_ERROR" ? NetworkError : T extends "SERVER_ERROR" ? ServerError : T extends "TIMEOUT" ? TimeoutError : T extends "BAD_DATA" ? BadDataError : T extends "CANCELLED" ? CancelledError : T extends "BUFFER_OVERRUN" ? BufferOverrunError : T extends "NUMERIC_FAULT" ? NumericFaultError : T extends "INVALID_ARGUMENT" ? InvalidArgumentError : T extends "MISSING_ARGUMENT" ? MissingArgumentError : T extends "UNEXPECTED_ARGUMENT" ? UnexpectedArgumentError : T extends "CALL_EXCEPTION" ? CallExceptionError : T extends "INSUFFICIENT_FUNDS" ? InsufficientFundsError : T extends "NONCE_EXPIRED" ? NonceExpiredError : T extends "OFFCHAIN_FAULT" ? OffchainFaultError : T extends "REPLACEMENT_UNDERPRICED" ? ReplacementUnderpricedError : T extends "TRANSACTION_REPLACED" ? TransactionReplacedError : T extends "UNCONFIGURED_NAME" ? UnconfiguredNameError : T extends "ACTION_REJECTED" ? ActionRejectedError : never;
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/**
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* Returns true if the %%error%% matches an error thrown by ethers
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* that matches the error %%code%%.
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*
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* In TypeScript envornoments, this can be used to check that %%error%%
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* matches an EthersError type, which means the expected properties will
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* be set.
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*
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* @See [ErrorCodes](api:ErrorCode)
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* @example
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* try {
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* // code....
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* } catch (e) {
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* if (isError(e, "CALL_EXCEPTION")) {
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* // The Type Guard has validated this object
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* console.log(e.data);
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* }
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* }
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*/
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export declare function isError<K extends ErrorCode, T extends CodedEthersError<K>>(error: any, code: K): error is T;
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/**
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* Returns true if %%error%% is a [[CallExceptionError].
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*/
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export declare function isCallException(error: any): error is CallExceptionError;
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/**
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* Returns a new Error configured to the format ethers emits errors, with
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* the %%message%%, [[api:ErrorCode]] %%code%% and additioanl properties
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* for the corresponding EthersError.
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*
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* Each error in ethers includes the version of ethers, a
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* machine-readable [[ErrorCode]], and depneding on %%code%%, additional
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* required properties. The error message will also include the %%meeage%%,
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* ethers version, %%code%% and all aditional properties, serialized.
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*/
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export declare function makeError<K extends ErrorCode, T extends CodedEthersError<K>>(message: string, code: K, info?: ErrorInfo<T>): T;
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/**
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* Throws an EthersError with %%message%%, %%code%% and additional error
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* %%info%% when %%check%% is falsish..
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*
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* @see [[api:makeError]]
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*/
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export declare function assert<K extends ErrorCode, T extends CodedEthersError<K>>(check: unknown, message: string, code: K, info?: ErrorInfo<T>): asserts check;
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/**
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* A simple helper to simply ensuring provided arguments match expected
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* constraints, throwing if not.
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*
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* In TypeScript environments, the %%check%% has been asserted true, so
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* any further code does not need additional compile-time checks.
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*/
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export declare function assertArgument(check: unknown, message: string, name: string, value: unknown): asserts check;
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export declare function assertArgumentCount(count: number, expectedCount: number, message?: string): void;
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/**
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* Throws if the normalization %%form%% is not supported.
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*/
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export declare function assertNormalize(form: string): void;
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/**
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* Many classes use file-scoped values to guard the constructor,
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* making it effectively private. This facilitates that pattern
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* by ensuring the %%givenGaurd%% matches the file-scoped %%guard%%,
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* throwing if not, indicating the %%className%% if provided.
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*/
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export declare function assertPrivate(givenGuard: any, guard: any, className?: string): void;
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//# sourceMappingURL=errors.d.ts.map
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