32 lines
1.3 KiB
JavaScript
32 lines
1.3 KiB
JavaScript
import { keccak256 } from "../crypto/index.js";
|
|
import { concat, dataSlice, getBigInt, getBytes, encodeRlp, throwArgumentError } from "../utils/index.js";
|
|
import { getAddress } from "./address.js";
|
|
// http://ethereum.stackexchange.com/questions/760/how-is-the-address-of-an-ethereum-contract-computed
|
|
export function getCreateAddress(tx) {
|
|
const from = getAddress(tx.from);
|
|
const nonce = getBigInt(tx.nonce, "tx.nonce");
|
|
let nonceHex = nonce.toString(16);
|
|
if (nonceHex === "0") {
|
|
nonceHex = "0x";
|
|
}
|
|
else if (nonceHex.length % 2) {
|
|
nonceHex = "0x0" + nonceHex;
|
|
}
|
|
else {
|
|
nonceHex = "0x" + nonceHex;
|
|
}
|
|
return getAddress(dataSlice(keccak256(encodeRlp([from, nonceHex])), 12));
|
|
}
|
|
export function getCreate2Address(_from, _salt, _initCodeHash) {
|
|
const from = getAddress(_from);
|
|
const salt = getBytes(_salt, "salt");
|
|
const initCodeHash = getBytes(_initCodeHash, "initCodeHash");
|
|
if (salt.length !== 32) {
|
|
throwArgumentError("salt must be 32 bytes", "salt", _salt);
|
|
}
|
|
if (initCodeHash.length !== 32) {
|
|
throwArgumentError("initCodeHash must be 32 bytes", "initCodeHash", _initCodeHash);
|
|
}
|
|
return getAddress(dataSlice(keccak256(concat(["0xff", from, salt, initCodeHash])), 12));
|
|
}
|
|
//# sourceMappingURL=contract-address.js.map
|