ethers.js/src.ts/providers/provider.ts

1081 lines
31 KiB
TypeScript

//import { resolveAddress } from "@ethersproject/address";
import {
defineProperties, getBigInt, getNumber, hexlify, throwError
} from "../utils/index.js";
import { accessListify } from "../transaction/index.js";
import type { AddressLike, NameResolver } from "../address/index.js";
import type { BigNumberish, EventEmitterable, Frozen, Listener } from "../utils/index.js";
import type { Signature } from "../crypto/index.js";
import type { AccessList, AccessListish, TransactionLike } from "../transaction/index.js";
import type { ContractRunner } from "./contracts.js";
import type { Network } from "./network.js";
export type BlockTag = number | string;
// -----------------------
function getValue<T>(value: undefined | null | T): null | T {
if (value == null) { return null; }
return value;
}
function toJson(value: null | bigint): null | string {
if (value == null) { return null; }
return value.toString();
}
// @TODO? <T extends FeeData = { }> implements Required<T>
export class FeeData {
readonly gasPrice!: null | bigint;
readonly maxFeePerGas!: null | bigint;
readonly maxPriorityFeePerGas!: null | bigint;
constructor(gasPrice?: null | bigint, maxFeePerGas?: null | bigint, maxPriorityFeePerGas?: null | bigint) {
defineProperties<FeeData>(this, {
gasPrice: getValue(gasPrice),
maxFeePerGas: getValue(maxFeePerGas),
maxPriorityFeePerGas: getValue(maxPriorityFeePerGas)
});
}
toJSON(): any {
const {
gasPrice, maxFeePerGas, maxPriorityFeePerGas
} = this;
return {
_type: "FeeData",
gasPrice: toJson(gasPrice),
maxFeePerGas: toJson(maxFeePerGas),
maxPriorityFeePerGas: toJson(maxPriorityFeePerGas),
};
}
}
export interface TransactionRequest {
type?: null | number;
to?: null | AddressLike;
from?: null | AddressLike;
nonce?: null | number;
gasLimit?: null | BigNumberish;
gasPrice?: null | BigNumberish;
maxPriorityFeePerGas?: null | BigNumberish;
maxFeePerGas?: null | BigNumberish;
data?: null | string;
value?: null | BigNumberish;
chainId?: null | BigNumberish;
accessList?: null | AccessListish;
customData?: any;
// Todo?
//gasMultiplier?: number;
};
export interface CallRequest extends TransactionRequest {
blockTag?: BlockTag;
enableCcipRead?: boolean;
}
export interface PreparedRequest {
type?: number;
to?: AddressLike;
from?: AddressLike;
nonce?: number;
gasLimit?: bigint;
gasPrice?: bigint;
maxPriorityFeePerGas?: bigint;
maxFeePerGas?: bigint;
data?: string;
value?: bigint;
chainId?: bigint;
accessList?: AccessList;
customData?: any;
blockTag?: BlockTag;
enableCcipRead?: boolean;
}
export function copyRequest(req: CallRequest): PreparedRequest {
const result: any = { };
// These could be addresses, ENS names or Addressables
if (req.to) { result.to = req.to; }
if (req.from) { result.from = req.from; }
if (req.data) { result.data = hexlify(req.data); }
const bigIntKeys = "chainId,gasLimit,gasPrice,maxFeePerGas, maxPriorityFeePerGas,value".split(/,/);
for (const key in bigIntKeys) {
if (!(key in req) || (<any>req)[key] == null) { continue; }
result[key] = getBigInt((<any>req)[key], `request.${ key }`);
}
const numberKeys = "type,nonce".split(/,/);
for (const key in numberKeys) {
if (!(key in req) || (<any>req)[key] == null) { continue; }
result[key] = getNumber((<any>req)[key], `request.${ key }`);
}
if (req.accessList) {
result.accessList = accessListify(req.accessList);
}
if ("blockTag" in req) { result.blockTag = req.blockTag; }
if ("enableCcipRead" in req) {
result.enableCcipReadEnabled = !!req.enableCcipRead
}
if ("customData" in req) {
result.customData = req.customData;
}
return result;
}
//Omit<TransactionLike<string | Addressable>, "hash" | "signature">;
/*
export async function resolveTransactionRequest(tx: TransactionRequest, provider?: Provider): Promise<TransactionRequest> {
// A pending transaction with items that may require resolving
const ptx: any = Object.assign({ }, tx); //await resolveProperties(await tx));
//if (tx.hash != null || tx.signature != null) {
// throw new Error();
// @TODO: Check for bad keys?
//}
// @TODO: Why does TS not think that to and from are reoslved and require the cast to string
if (ptx.to != null) { ptx.to = resolveAddress(<string | Addressable>(ptx.to), provider); }
if (ptx.from != null) { ptx.from = resolveAddress(<string | Addressable>(ptx.from), provider); }
return await resolveProperties(ptx);
}
*/
//function canConnect<T>(value: any): value is T {
// return (value && typeof(value.connect) === "function");
//}
//////////////////////
// Block
export interface BlockParams<T extends string | TransactionResponse> {
hash?: null | string;
number: number;
timestamp: number;
parentHash: string;
nonce: string;
difficulty: bigint;
gasLimit: bigint;
gasUsed: bigint;
miner: string;
extraData: string;
baseFeePerGas: null | bigint;
transactions: ReadonlyArray<T>;
};
export interface MinedBlock<T extends string | TransactionResponse = string> extends Block<T> {
readonly number: number;
readonly hash: string;
readonly timestamp: number;
readonly date: Date;
readonly miner: string;
}
export class Block<T extends string | TransactionResponse> implements BlockParams<T>, Iterable<T> {
readonly provider!: Provider;
readonly number!: number;
readonly hash!: null | string;
readonly timestamp!: number;
readonly parentHash!: string;
readonly nonce!: string;
readonly difficulty!: bigint;
readonly gasLimit!: bigint;
readonly gasUsed!: bigint;
readonly miner!: string;
readonly extraData!: string;
readonly baseFeePerGas!: null | bigint;
readonly #transactions: ReadonlyArray<T>;
constructor(block: BlockParams<T>, provider?: null | Provider) {
if (provider == null) { provider = dummyProvider; }
this.#transactions = Object.freeze(block.transactions.map((tx) => {
if (typeof(tx) !== "string" && tx.provider !== provider) {
throw new Error("provider mismatch");
}
return <T>tx;
}));;
defineProperties<Block<T>>(this, {
provider,
hash: getValue(block.hash),
number: block.number,
timestamp: block.timestamp,
parentHash: block.parentHash,
nonce: block.nonce,
difficulty: block.difficulty,
gasLimit: block.gasLimit,
gasUsed: block.gasUsed,
miner: block.miner,
extraData: block.extraData,
baseFeePerGas: getValue(block.baseFeePerGas)
});
}
get transactions(): ReadonlyArray<T> { return this.#transactions; }
//connect(provider: Provider): Block<T> {
// return new Block(this, provider);
//}
toJSON(): any {
const {
baseFeePerGas, difficulty, extraData, gasLimit, gasUsed, hash,
miner, nonce, number, parentHash, timestamp, transactions
} = this;
return {
_type: "Block",
baseFeePerGas: toJson(baseFeePerGas),
difficulty: toJson(difficulty),
extraData,
gasLimit: toJson(gasLimit),
gasUsed: toJson(gasUsed),
hash, miner, nonce, number, parentHash, timestamp,
transactions,
};
}
[Symbol.iterator](): Iterator<T> {
let index = 0;
return {
next: () => {
if (index < this.length) {
return {
value: this.transactions[index++], done: false
}
}
return { value: undefined, done: true };
}
};
}
get length(): number { return this.transactions.length; }
get date(): null | Date {
if (this.timestamp == null) { return null; }
return new Date(this.timestamp * 1000);
}
async getTransaction(index: number): Promise<TransactionResponse> {
const tx = this.transactions[index];
if (tx == null) { throw new Error("no such tx"); }
if (typeof(tx) === "string") {
return <TransactionResponse>(await this.provider.getTransaction(tx));
} else {
return tx;
}
}
isMined(): this is MinedBlock<T> { return !!this.hash; }
isLondon(): this is (Block<T> & { baseFeePerGas: bigint }) {
return !!this.baseFeePerGas;
}
orphanedEvent(): OrphanFilter {
if (!this.isMined()) { throw new Error(""); }
return createOrphanedBlockFilter(this);
}
}
//////////////////////
// Log
export interface LogParams {
transactionHash: string;
blockHash: string;
blockNumber: number;
removed: boolean;
address: string;
data: string;
topics: ReadonlyArray<string>;
index: number;
transactionIndex: number;
}
export class Log implements LogParams {
readonly provider: Provider;
readonly transactionHash!: string;
readonly blockHash!: string;
readonly blockNumber!: number;
readonly removed!: boolean;
readonly address!: string;
readonly data!: string;
readonly topics!: ReadonlyArray<string>;
readonly index!: number;
readonly transactionIndex!: number;
constructor(log: LogParams, provider?: null | Provider) {
if (provider == null) { provider = dummyProvider; }
this.provider = provider;
const topics = Object.freeze(log.topics.slice());
defineProperties<Log>(this, {
transactionHash: log.transactionHash,
blockHash: log.blockHash,
blockNumber: log.blockNumber,
removed: log.removed,
address: log.address,
data: log.data,
topics,
index: log.index,
transactionIndex: log.transactionIndex,
});
}
//connect(provider: Provider): Log {
// return new Log(this, provider);
//}
toJSON(): any {
const {
address, blockHash, blockNumber, data, index,
removed, topics, transactionHash, transactionIndex
} = this;
return {
_type: "log",
address, blockHash, blockNumber, data, index,
removed, topics, transactionHash, transactionIndex
};
}
async getBlock(): Promise<Block<string>> {
return <Block<string>>(await this.provider.getBlock(this.blockHash));
}
async getTransaction(): Promise<TransactionResponse> {
return <TransactionResponse>(await this.provider.getTransaction(this.transactionHash));
}
async getTransactionReceipt(): Promise<TransactionReceipt> {
return <TransactionReceipt>(await this.provider.getTransactionReceipt(this.transactionHash));
}
removedEvent(): OrphanFilter {
return createRemovedLogFilter(this);
}
}
//////////////////////
// Transaction Receipt
export interface TransactionReceiptParams {
to: null | string;
from: string;
contractAddress: null | string;
hash: string;
index: number;
blockHash: string;
blockNumber: number;
logsBloom: string;
logs: ReadonlyArray<Log>;
gasUsed: bigint;
cumulativeGasUsed: bigint;
gasPrice?: null | bigint;
effectiveGasPrice?: null | bigint;
byzantium: boolean;
status: null | number;
root: null | string;
}
/*
export interface LegacyTransactionReceipt {
byzantium: false;
status: null;
root: string;
}
export interface ByzantiumTransactionReceipt {
byzantium: true;
status: number;
root: null;
}
*/
export class TransactionReceipt implements TransactionReceiptParams, Iterable<Log> {
readonly provider!: Provider;
readonly to!: null | string;
readonly from!: string;
readonly contractAddress!: null | string;
readonly hash!: string;
readonly index!: number;
readonly blockHash!: string;
readonly blockNumber!: number;
readonly logsBloom!: string;
readonly gasUsed!: bigint;
readonly cumulativeGasUsed!: bigint;
readonly gasPrice!: bigint;
readonly byzantium!: boolean;
readonly status!: null | number;
readonly root!: null | string;
readonly #logs: ReadonlyArray<Log>;
constructor(tx: TransactionReceiptParams, provider?: null | Provider) {
if (provider == null) { provider = dummyProvider; }
this.#logs = Object.freeze(tx.logs.map((log) => {
if (provider !== log.provider) {
//return log.connect(provider);
throw new Error("provider mismatch");
}
return log;
}));
defineProperties<TransactionReceipt>(this, {
provider,
to: tx.to,
from: tx.from,
contractAddress: tx.contractAddress,
hash: tx.hash,
index: tx.index,
blockHash: tx.blockHash,
blockNumber: tx.blockNumber,
logsBloom: tx.logsBloom,
gasUsed: tx.gasUsed,
cumulativeGasUsed: tx.cumulativeGasUsed,
gasPrice: ((tx.effectiveGasPrice || tx.gasPrice) as bigint),
byzantium: tx.byzantium,
status: tx.status,
root: tx.root
});
}
get logs(): ReadonlyArray<Log> { return this.#logs; }
//connect(provider: Provider): TransactionReceipt {
// return new TransactionReceipt(this, provider);
//}
toJSON(): any {
const {
to, from, contractAddress, hash, index, blockHash, blockNumber, logsBloom,
logs, byzantium, status, root
} = this;
return {
_type: "TransactionReceipt",
blockHash, blockNumber, byzantium, contractAddress,
cumulativeGasUsed: toJson(this.cumulativeGasUsed),
from,
gasPrice: toJson(this.gasPrice),
gasUsed: toJson(this.gasUsed),
hash, index, logs, logsBloom, root, status, to
};
}
get length(): number { return this.logs.length; }
[Symbol.iterator](): Iterator<Log> {
let index = 0;
return {
next: () => {
if (index < this.length) {
return { value: this.logs[index++], done: false }
}
return { value: undefined, done: true };
}
};
}
get fee(): bigint {
return this.gasUsed * this.gasPrice;
}
async getBlock(): Promise<Block<string>> {
const block = await this.provider.getBlock(this.blockHash);
if (block == null) { throw new Error("TODO"); }
return block;
}
async getTransaction(): Promise<TransactionResponse> {
const tx = await this.provider.getTransaction(this.hash);
if (tx == null) { throw new Error("TODO"); }
return tx;
}
async confirmations(): Promise<number> {
return (await this.provider.getBlockNumber()) - this.blockNumber + 1;
}
removedEvent(): OrphanFilter {
return createRemovedTransactionFilter(this);
}
reorderedEvent(other?: TransactionResponse): OrphanFilter {
if (other && !other.isMined()) {
return throwError("unmined 'other' transction cannot be orphaned", "UNSUPPORTED_OPERATION", {
operation: "reorderedEvent(other)" });
}
return createReorderedTransactionFilter(this, other);
}
}
//////////////////////
// Transaction Response
export interface TransactionResponseParams {
blockNumber: null | number;
blockHash: null | string;
hash: string;
index: number;
type: number;
to: null | string;
from: string;
nonce: number;
gasLimit: bigint;
gasPrice: bigint;
maxPriorityFeePerGas: null | bigint;
maxFeePerGas: null | bigint;
data: string;
value: bigint;
chainId: bigint;
signature: Signature;
accessList: null | AccessList;
};
export interface MinedTransactionResponse extends TransactionResponse {
blockNumber: number;
blockHash: string;
date: Date;
}
export class TransactionResponse implements TransactionLike<string>, TransactionResponseParams {
readonly provider: Provider;
readonly blockNumber: null | number;
readonly blockHash: null | string;
readonly index!: number;
readonly hash!: string;
readonly type!: number;
readonly to!: null | string;
readonly from!: string;
readonly nonce!: number;
readonly gasLimit!: bigint;
readonly gasPrice!: bigint;
readonly maxPriorityFeePerGas!: null | bigint;
readonly maxFeePerGas!: null | bigint;
readonly data!: string;
readonly value!: bigint;
readonly chainId!: bigint;
readonly signature!: Signature;
readonly accessList!: null | AccessList;
constructor(tx: TransactionResponseParams, provider?: null | Provider) {
if (provider == null) { provider = dummyProvider; }
this.provider = provider;
this.blockNumber = (tx.blockNumber != null) ? tx.blockNumber: null;
this.blockHash = (tx.blockHash != null) ? tx.blockHash: null;
this.hash = tx.hash;
this.index = tx.index;
this.type = tx.type;
this.from = tx.from;
this.to = tx.to || null;
this.gasLimit = tx.gasLimit;
this.nonce = tx.nonce;
this.data = tx.data;
this.value = tx.value;
this.gasPrice = tx.gasPrice;
this.maxPriorityFeePerGas = (tx.maxPriorityFeePerGas != null) ? tx.maxPriorityFeePerGas: null;
this.maxFeePerGas = (tx.maxFeePerGas != null) ? tx.maxFeePerGas: null;
this.chainId = tx.chainId;
this.signature = tx.signature;
this.accessList = (tx.accessList != null) ? tx.accessList: null;
}
//connect(provider: Provider): TransactionResponse {
// return new TransactionResponse(this, provider);
//}
toJSON(): any {
const {
blockNumber, blockHash, index, hash, type, to, from, nonce,
data, signature, accessList
} = this;
return {
_type: "TransactionReceipt",
accessList, blockNumber, blockHash,
chainId: toJson(this.chainId),
data, from,
gasLimit: toJson(this.gasLimit),
gasPrice: toJson(this.gasPrice),
hash,
maxFeePerGas: toJson(this.maxFeePerGas),
maxPriorityFeePerGas: toJson(this.maxPriorityFeePerGas),
nonce, signature, to, index, type,
value: toJson(this.value),
};
}
async getBlock(): Promise<null | Block<string>> {
let blockNumber = this.blockNumber;
if (blockNumber == null) {
const tx = await this.getTransaction();
if (tx) { blockNumber = tx.blockNumber; }
}
if (blockNumber == null) { return null; }
const block = this.provider.getBlock(blockNumber);
if (block == null) { throw new Error("TODO"); }
return block;
}
async getTransaction(): Promise<null | TransactionResponse> {
return this.provider.getTransaction(this.hash);
}
async wait(confirms?: number): Promise<null | TransactionReceipt> {
return this.provider.waitForTransaction(this.hash, confirms);
}
isMined(): this is MinedTransactionResponse {
return (this.blockHash != null);
}
isLegacy(): this is (TransactionResponse & { accessList: null, maxFeePerGas: null, maxPriorityFeePerGas: null }) {
return (this.type === 0)
}
isBerlin(): this is (TransactionResponse & { accessList: AccessList, maxFeePerGas: null, maxPriorityFeePerGas: null }) {
return (this.type === 1);
}
isLondon(): this is (TransactionResponse & { accessList: AccessList, maxFeePerGas: bigint, maxPriorityFeePerGas: bigint }){
return (this.type === 2);
}
removedEvent(): OrphanFilter {
if (!this.isMined()) {
return throwError("unmined transaction canot be orphaned", "UNSUPPORTED_OPERATION", {
operation: "removeEvent()" });
}
return createRemovedTransactionFilter(this);
}
reorderedEvent(other?: TransactionResponse): OrphanFilter {
if (!this.isMined()) {
return throwError("unmined transaction canot be orphaned", "UNSUPPORTED_OPERATION", {
operation: "removeEvent()" });
}
if (other && !other.isMined()) {
return throwError("unmined 'other' transaction canot be orphaned", "UNSUPPORTED_OPERATION", {
operation: "removeEvent()" });
}
return createReorderedTransactionFilter(this, other);
}
}
//////////////////////
// OrphanFilter
export type OrphanFilter = {
orphan: "drop-block",
hash: string,
number: number
} | {
orphan: "drop-transaction",
tx: { hash: string, blockHash: string, blockNumber: number },
other?: { hash: string, blockHash: string, blockNumber: number }
} | {
orphan: "reorder-transaction",
tx: { hash: string, blockHash: string, blockNumber: number },
other?: { hash: string, blockHash: string, blockNumber: number }
} | {
orphan: "drop-log",
log: {
transactionHash: string,
blockHash: string,
blockNumber: number,
address: string,
data: string,
topics: ReadonlyArray<string>,
index: number
}
};
function createOrphanedBlockFilter(block: { hash: string, number: number }): OrphanFilter {
return { orphan: "drop-block", hash: block.hash, number: block.number };
}
function createReorderedTransactionFilter(tx: { hash: string, blockHash: string, blockNumber: number }, other?: { hash: string, blockHash: string, blockNumber: number }): OrphanFilter {
return { orphan: "reorder-transaction", tx, other };
}
function createRemovedTransactionFilter(tx: { hash: string, blockHash: string, blockNumber: number }): OrphanFilter {
return { orphan: "drop-transaction", tx };
}
function createRemovedLogFilter(log: { blockHash: string, transactionHash: string, blockNumber: number, address: string, data: string, topics: ReadonlyArray<string>, index: number }): OrphanFilter {
return { orphan: "drop-log", log: {
transactionHash: log.transactionHash,
blockHash: log.blockHash,
blockNumber: log.blockNumber,
address: log.address,
data: log.data,
topics: Object.freeze(log.topics.slice()),
index: log.index
} };
}
//////////////////////
// EventFilter
export type TopicFilter = Array<null | string | Array<string>>;
// @TODO:
//export type DeferableTopicFilter = Array<null | string | Promise<string> | Array<string | Promise<string>>>;
export interface EventFilter {
address?: AddressLike | Array<AddressLike>;
topics?: TopicFilter;
}
export interface Filter extends EventFilter {
fromBlock?: BlockTag;
toBlock?: BlockTag;
}
export interface FilterByBlockHash extends EventFilter {
blockHash?: string;
}
//////////////////////
// ProviderEvent
export type ProviderEvent = string | Array<string | Array<string>> | EventFilter | OrphanFilter;
//////////////////////
// Provider
export interface Provider extends ContractRunner, EventEmitterable<ProviderEvent>, NameResolver {
provider: this;
////////////////////
// State
/**
* Get the current block number.
*/
getBlockNumber(): Promise<number>;
/**
* Get the connected [[Network]].
*/
getNetwork(): Promise<Frozen<Network>>;
/**
* Get the best guess at the recommended [[FeeData]].
*/
getFeeData(): Promise<FeeData>;
////////////////////
// Account
/**
* Get the account balance (in wei) of %%address%%. If %%blockTag%% is specified and
* the node supports archive access, the balance is as of that [[BlockTag]].
*
* @param {Address | Addressable} address - The account to lookup the balance of
* @param blockTag - The block tag to use for historic archive access. [default: ``"latest"``]
*
* @note On nodes without archive access enabled, the %%blockTag%% may be
* **silently ignored** by the node, which may cause issues if relied on.
*/
getBalance(address: AddressLike, blockTag?: BlockTag): Promise<bigint>;
/**
* Get the number of transactions ever sent for %%address%%, which is used as
* the ``nonce`` when sending a transaction. If %%blockTag%% is specified and
* the node supports archive access, the transaction count is as of that [[BlockTag]].
*
* @param {Address | Addressable} address - The account to lookup the transaction count of
* @param blockTag - The block tag to use for historic archive access. [default: ``"latest"``]
*
* @note On nodes without archive access enabled, the %%blockTag%% may be
* **silently ignored** by the node, which may cause issues if relied on.
*/
getTransactionCount(address: AddressLike, blockTag?: BlockTag): Promise<number>;
/**
* Get the bytecode for //address//.
*
* @param {Address | Addressable} address - The account to lookup the bytecode of
* @param blockTag - The block tag to use for historic archive access. [default: ``"latest"``]
*
* @note On nodes without archive access enabled, the %%blockTag%% may be
* **silently ignored** by the node, which may cause issues if relied on.
*/
getCode(address: AddressLike, blockTag?: BlockTag): Promise<string>
/**
* Get the storage slot value for a given //address// and slot //position//.
*
* @param {Address | Addressable} address - The account to lookup the storage of
* @param position - The storage slot to fetch the value of
* @param blockTag - The block tag to use for historic archive access. [default: ``"latest"``]
*
* @note On nodes without archive access enabled, the %%blockTag%% may be
* **silently ignored** by the node, which may cause issues if relied on.
*/
getStorageAt(address: AddressLike, position: BigNumberish, blockTag?: BlockTag): Promise<string>
////////////////////
// Execution
/**
* Estimates the amount of gas required to executre %%tx%%.
*
* @param tx - The transaction to estimate the gas requirement for
*/
estimateGas(tx: TransactionRequest): Promise<bigint>;
// If call fails, throws CALL_EXCEPTION { data: string, error, errorString?, panicReason? }
/**
* Uses call to simulate execution of %%tx%%.
*
* @param tx - The transaction to simulate
*/
call(tx: CallRequest): Promise<string>
/**
* Broadcasts the %%signedTx%% to the network, adding it to the memory pool
* of any node for which the transaction meets the rebroadcast requirements.
*
* @param signedTx - The transaction to broadcast
*/
broadcastTransaction(signedTx: string): Promise<TransactionResponse>;
////////////////////
// Queries
getBlock(blockHashOrBlockTag: BlockTag | string): Promise<null | Block<string>>;
getBlockWithTransactions(blockHashOrBlockTag: BlockTag | string): Promise<null | Block<TransactionResponse>>
getTransaction(hash: string): Promise<null | TransactionResponse>;
getTransactionReceipt(hash: string): Promise<null | TransactionReceipt>;
////////////////////
// Bloom-filter Queries
getLogs(filter: Filter | FilterByBlockHash): Promise<Array<Log>>;
////////////////////
// ENS
resolveName(name: string): Promise<null | string>;
lookupAddress(address: string): Promise<null | string>;
waitForTransaction(hash: string, confirms?: number, timeout?: number): Promise<null | TransactionReceipt>;
waitForBlock(blockTag?: BlockTag): Promise<Block<string>>;
}
// @TODO: I think I can drop T
function fail<T>(): T {
throw new Error("this provider should not be used");
}
class DummyProvider implements Provider {
get provider(): this { return this; }
async getNetwork(): Promise<Frozen<Network>> { return fail<Frozen<Network>>(); }
async getFeeData(): Promise<FeeData> { return fail<FeeData>(); }
async estimateGas(tx: TransactionRequest): Promise<bigint> { return fail<bigint>(); }
async call(tx: CallRequest): Promise<string> { return fail<string>(); }
async resolveName(name: string): Promise<null | string> { return fail<null | string>(); }
// State
async getBlockNumber(): Promise<number> { return fail<number>(); }
// Account
async getBalance(address: AddressLike, blockTag?: BlockTag): Promise<bigint> {
return fail<bigint>();
}
async getTransactionCount(address: AddressLike, blockTag?: BlockTag): Promise<number> {
return fail<number>();
}
async getCode(address: AddressLike, blockTag?: BlockTag): Promise<string> {
return fail<string>();
}
async getStorageAt(address: AddressLike, position: BigNumberish, blockTag?: BlockTag): Promise<string> {
return fail<string>();
}
// Write
async broadcastTransaction(signedTx: string): Promise<TransactionResponse> { return fail<TransactionResponse>(); }
// Queries
async getBlock(blockHashOrBlockTag: BlockTag | string): Promise<null | Block<string>>{
return fail<null | Block<string>>();
}
async getBlockWithTransactions(blockHashOrBlockTag: BlockTag | string): Promise<null | Block<TransactionResponse>> {
return fail<null | Block<TransactionResponse>>();
}
async getTransaction(hash: string): Promise<null | TransactionResponse> {
return fail<null | TransactionResponse>();
}
async getTransactionReceipt(hash: string): Promise<null | TransactionReceipt> {
return fail<null | TransactionReceipt>();
}
// Bloom-filter Queries
async getLogs(filter: Filter | FilterByBlockHash): Promise<Array<Log>> {
return fail<Array<Log>>();
}
// ENS
async lookupAddress(address: string): Promise<null | string> {
return fail<null | string>();
}
async waitForTransaction(hash: string, confirms?: number, timeout?: number): Promise<null | TransactionReceipt> {
return fail<null | TransactionReceipt>();
}
async waitForBlock(blockTag?: BlockTag): Promise<Block<string>> {
return fail<Block<string>>();
}
// EventEmitterable
async on(event: ProviderEvent, listener: Listener): Promise<this> { return fail(); }
async once(event: ProviderEvent, listener: Listener): Promise<this> { return fail(); }
async emit(event: ProviderEvent, ...args: Array<any>): Promise<boolean> { return fail(); }
async listenerCount(event?: ProviderEvent): Promise<number> { return fail(); }
async listeners(event?: ProviderEvent): Promise<Array<Listener>> { return fail(); }
async off(event: ProviderEvent, listener?: Listener): Promise<this> { return fail(); }
async removeAllListeners(event?: ProviderEvent): Promise<this> { return fail(); }
async addListener(event: ProviderEvent, listener: Listener): Promise<this> { return fail(); }
async removeListener(event: ProviderEvent, listener: Listener): Promise<this> { return fail(); }
}
/**
* A singleton [[Provider]] instance that can be used as a placeholder. This
* allows API that have a Provider added later to not require a null check.
*
* All operations performed on this [[Provider]] will throw.
*/
export const dummyProvider: Provider = new DummyProvider();