mirror of
https://github.com/ethereum/go-ethereum.git
synced 2026-08-19 18:32:23 +00:00
116 lines
No EOL
3.4 KiB
JavaScript
116 lines
No EOL
3.4 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.Address = void 0;
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const account_1 = require("./account");
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const bytes_1 = require("./bytes");
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/**
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* Handling and generating Ethereum addresses
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*/
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class Address {
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constructor(buf) {
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if (buf.length !== 20) {
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throw new Error('Invalid address length');
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}
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this.buf = buf;
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}
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/**
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* Returns the zero address.
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*/
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static zero() {
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return new Address((0, bytes_1.zeros)(20));
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}
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/**
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* Returns an Address object from a hex-encoded string.
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* @param str - Hex-encoded address
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*/
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static fromString(str) {
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if (!(0, account_1.isValidAddress)(str)) {
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throw new Error('Invalid address');
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}
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return new Address((0, bytes_1.toBuffer)(str));
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}
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/**
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* Returns an address for a given public key.
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* @param pubKey The two points of an uncompressed key
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*/
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static fromPublicKey(pubKey) {
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if (!Buffer.isBuffer(pubKey)) {
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throw new Error('Public key should be Buffer');
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}
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const buf = (0, account_1.pubToAddress)(pubKey);
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return new Address(buf);
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}
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/**
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* Returns an address for a given private key.
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* @param privateKey A private key must be 256 bits wide
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*/
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static fromPrivateKey(privateKey) {
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if (!Buffer.isBuffer(privateKey)) {
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throw new Error('Private key should be Buffer');
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}
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const buf = (0, account_1.privateToAddress)(privateKey);
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return new Address(buf);
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}
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/**
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* Generates an address for a newly created contract.
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* @param from The address which is creating this new address
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* @param nonce The nonce of the from account
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*/
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static generate(from, nonce) {
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if (typeof nonce !== 'bigint') {
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throw new Error('Expected nonce to be a bigint');
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}
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return new Address((0, account_1.generateAddress)(from.buf, (0, bytes_1.bigIntToBuffer)(nonce)));
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}
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/**
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* Generates an address for a contract created using CREATE2.
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* @param from The address which is creating this new address
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* @param salt A salt
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* @param initCode The init code of the contract being created
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*/
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static generate2(from, salt, initCode) {
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if (!Buffer.isBuffer(salt)) {
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throw new Error('Expected salt to be a Buffer');
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}
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if (!Buffer.isBuffer(initCode)) {
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throw new Error('Expected initCode to be a Buffer');
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}
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return new Address((0, account_1.generateAddress2)(from.buf, salt, initCode));
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}
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/**
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* Is address equal to another.
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*/
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equals(address) {
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return this.buf.equals(address.buf);
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}
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/**
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* Is address zero.
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*/
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isZero() {
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return this.equals(Address.zero());
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}
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/**
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* True if address is in the address range defined
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* by EIP-1352
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*/
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isPrecompileOrSystemAddress() {
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const address = (0, bytes_1.bufferToBigInt)(this.buf);
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const rangeMin = BigInt(0);
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const rangeMax = BigInt('0xffff');
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return address >= rangeMin && address <= rangeMax;
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}
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/**
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* Returns hex encoding of address.
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*/
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toString() {
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return '0x' + this.buf.toString('hex');
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}
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/**
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* Returns Buffer representation of address.
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*/
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toBuffer() {
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return Buffer.from(this.buf);
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}
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}
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exports.Address = Address;
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//# sourceMappingURL=address.js.map
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