@ethereumjs/tx/dist/esm/util/access.js

Implementation of the various Ethereum Transaction Types

// Utility helpers to convert access lists from the byte format and JSON format and vice versa
import { bytesToHex, hexToBytes, setLengthLeft } from '@ethereumjs/util';
/**
 * Converts an access list in bytes to a JSON format
 * @param accessList
 * @returns JSON format of the access list
 */
export function accessListBytesToJSON(accessList) {
    return accessList.map(([address, storageSlots]) => ({
        address: bytesToHex(setLengthLeft(address, 20)),
        storageKeys: storageSlots.map((slot) => bytesToHex(setLengthLeft(slot, 32))),
    }));
}
/**
 * Converts an access list in JSON to a bytes format
 * @param accessList
 * @returns bytes format of the access list
 */
export function accessListJSONToBytes(accessList) {
    return accessList.map((item) => [
        hexToBytes(item.address),
        item.storageKeys.map((key) => hexToBytes(key)),
    ]);
}
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