deth/dist/esm/vm/initializeVM.js

Ethereum node focused on Developer Experience

import VM from 'ethereumts-vm';
import Common from 'ethereumjs-common';
import Account from 'ethereumjs-account';
import { toBuffer } from 'ethereumjs-util';
import { Wallet } from 'ethers';
import BN from 'bn.js';
import { putGenesisBlock } from './putGenesisBlock';
import Blockchain from 'ethereumjs-blockchain';
import { BlockchainAdapter } from './storage/BlockchainAdapter';
import { StateManagerAdapter } from './storage/StateManagerAdapter';
export async function initializeVM(options, stateManager, blockchain) {
    const common = Common.forCustomChain('mainnet', {
        chainId: options.chainId,
        networkId: options.chainId,
        name: options.chainName,
    }, options.hardfork);
    const callbackBlockchain = blockchain
        ? new BlockchainAdapter(blockchain)
        : new Blockchain({ common, validate: false });
    const stateManger = stateManager ? new StateManagerAdapter(stateManager) : undefined;
    const vm = new VM({ common, stateManager: stateManger, blockchain: callbackBlockchain });
    await initAccounts(vm, options);
    await putGenesisBlock(vm, options);
    return vm;
}
// @TODO extract this. VM should not be aware of any private keys etc. TestChain should provide data for genesis block
async function initAccounts(vm, options) {
    const psm = vm.pStateManager;
    const balance = new BN(options.accounts.initialBalance.toString()).toBuffer();
    for (const privateKey of options.accounts.privateKeys) {
        const { address } = new Wallet(privateKey);
        await psm.putAccount(toBuffer(address), new Account({ balance }));
    }
}