ox
Version:
101 lines • 3.62 kB
JavaScript
import * as Address from './Address.js';
import * as Bytes from './Bytes.js';
import * as Hash from './Hash.js';
import * as Hex from './Hex.js';
import * as Rlp from './Rlp.js';
/**
* Computes Contract Address generated by the [CREATE](https://ethereum.stackexchange.com/questions/68943/create-opcode-what-does-it-really-do/68945#68945) or [CREATE2](https://eips.ethereum.org/EIPS/eip-1014) opcode.
*
* @example
* ### CREATE
*
* Computes via the [CREATE](https://ethereum.stackexchange.com/questions/68943/create-opcode-what-does-it-really-do/68945#68945) opcode. Shorthand for {@link ox#ContractAddress.(fromCreate:function)}.
*
* ```ts twoslash
* import { ContractAddress } from 'ox'
* ContractAddress.from({
* from: '0x1a1e021a302c237453d3d45c7b82b19ceeb7e2e6',
* nonce: 0n,
* })
* // @log: '0xFBA3912Ca04dd458c843e2EE08967fC04f3579c2'
* ```
*
* @example
* ### CREATE2
*
* Computes via the [CREATE2](https://eips.ethereum.org/EIPS/eip-1014) opcode. Shorthand for {@link ox#ContractAddress.(fromCreate2:function)}.
*
* ```ts twoslash
* import { ContractAddress, Hex } from 'ox'
* ContractAddress.from({
* from: '0x1a1e021a302c237453d3d45c7b82b19ceeb7e2e6',
* bytecode: '0x6394198df16000526103ff60206004601c335afa6040516060f3',
* salt: Hex.fromString('hello world'),
* })
* // @log: '0x59fbB593ABe27Cb193b6ee5C5DC7bbde312290aB'
* ```
*
* @param options - Options.
* @returns Contract Address.
*/
export function from(options) {
if (options.salt)
return fromCreate2(options);
return fromCreate(options);
}
/**
* Computes contract address via [CREATE](https://ethereum.stackexchange.com/questions/68943/create-opcode-what-does-it-really-do/68945#68945) opcode.
*
* @example
* ```ts twoslash
* import { ContractAddress } from 'ox'
*
* ContractAddress.fromCreate({
* from: '0x1a1e021a302c237453d3d45c7b82b19ceeb7e2e6',
* nonce: 0n,
* })
* // @log: '0xFBA3912Ca04dd458c843e2EE08967fC04f3579c2'
* ```
*
* @param options - Options for retrieving address.
* @returns Contract Address.
*/
export function fromCreate(options) {
const from = Bytes.fromHex(Address.from(options.from));
let nonce = Bytes.fromNumber(options.nonce);
if (nonce[0] === 0)
nonce = new Uint8Array([]);
return Address.from(`0x${Hash.keccak256(Rlp.fromBytes([from, nonce], { as: 'Hex' })).slice(26)}`);
}
/**
* Computes contract address via [CREATE2](https://eips.ethereum.org/EIPS/eip-1014) opcode.
*
* @example
* ```ts twoslash
* import { ContractAddress, Hex } from 'ox'
*
* ContractAddress.fromCreate2({
* from: '0x1a1e021a302c237453d3d45c7b82b19ceeb7e2e6',
* bytecode: '0x6394198df16000526103ff60206004601c335afa6040516060f3',
* salt: Hex.fromString('hello world'),
* })
* // @log: '0x59fbB593ABe27Cb193b6ee5C5DC7bbde312290aB'
* ```
*
* @param options - Options for retrieving address.
* @returns Contract Address.
*/
export function fromCreate2(options) {
const from = Bytes.fromHex(Address.from(options.from));
const salt = Bytes.padLeft(Bytes.validate(options.salt) ? options.salt : Bytes.fromHex(options.salt), 32);
const bytecodeHash = (() => {
if ('bytecodeHash' in options) {
if (Bytes.validate(options.bytecodeHash))
return options.bytecodeHash;
return Bytes.fromHex(options.bytecodeHash);
}
return Hash.keccak256(options.bytecode, { as: 'Bytes' });
})();
return Address.from(Hex.slice(Hash.keccak256(Bytes.concat(Bytes.fromHex('0xff'), from, salt, bytecodeHash), { as: 'Hex' }), 12));
}
//# sourceMappingURL=ContractAddress.js.map