Examples with ProgramResult io.nuls.contract.vm.program.ProgramResult used on opensource projects

Example 6 with ProgramResult

use of io.nuls.contract.vm.program.ProgramResult in project nuls by nuls-io.

the class CreateContractTxProcessor method onCommit.

@Override
public Result onCommit(CreateContractTransaction tx, Object secondaryData) {
    ContractResult contractResult = tx.getContractResult();
    contractService.saveContractExecuteResult(tx.getHash(), contractResult);
    CreateContractData txData = tx.getTxData();
    byte[] contractAddress = txData.getContractAddress();
    byte[] sender = txData.getSender();
    String senderStr = AddressTool.getStringAddressByBytes(sender);
    String contractAddressStr = AddressTool.getStringAddressByBytes(contractAddress);
    // 移除未确认的创建合约交易
    contractTxService.removeLocalUnconfirmedCreateContractTransaction(senderStr, contractAddressStr, contractResult);
    // 执行失败的合约直接返回
    if (!contractResult.isSuccess()) {
        return Result.getSuccess();
    }
    NulsDigestData hash = tx.getHash();
    long blockHeight = tx.getBlockHeight();
    long bestBlockHeight = NulsContext.getInstance().getBestHeight();
    ContractAddressInfoPo info = new ContractAddressInfoPo();
    info.setContractAddress(contractAddress);
    info.setSender(sender);
    try {
        info.setCreateTxHash(hash.serialize());
    } catch (IOException e) {
        throw new NulsRuntimeException(e);
    }
    info.setCreateTime(tx.getTime());
    info.setBlockHeight(blockHeight);
    // byte[] stateRoot = contractResult.getStateRoot();
    boolean isNrc20Contract = contractResult.isNrc20();
    boolean acceptDirectTransfer = contractResult.isAcceptDirectTransfer();
    info.setAcceptDirectTransfer(acceptDirectTransfer);
    info.setNrc20(isNrc20Contract);
    // 获取 token tracker
    if (isNrc20Contract) {
        BlockHeader blockHeader = tx.getBlockHeader();
        byte[] newestStateRoot = blockHeader.getStateRoot();
        // NRC20 token 标准方法获取名称数据
        ProgramResult programResult = vmHelper.invokeViewMethod(newestStateRoot, bestBlockHeight, contractAddress, NRC20_METHOD_NAME, null, null);
        if (programResult.isSuccess()) {
            String tokenName = programResult.getResult();
            info.setNrc20TokenName(tokenName);
        }
        programResult = vmHelper.invokeViewMethod(newestStateRoot, bestBlockHeight, contractAddress, NRC20_METHOD_SYMBOL, null, null);
        if (programResult.isSuccess()) {
            String symbol = programResult.getResult();
            info.setNrc20TokenSymbol(symbol);
        }
        programResult = vmHelper.invokeViewMethod(newestStateRoot, bestBlockHeight, contractAddress, NRC20_METHOD_DECIMALS, null, null);
        if (programResult.isSuccess()) {
            String decimals = programResult.getResult();
            if (StringUtils.isNotBlank(decimals)) {
                try {
                    info.setDecimals(new BigInteger(decimals).longValue());
                } catch (Exception e) {
                    Log.error("Get nrc20 decimals error.", e);
                // skip it
                }
            }
        }
        programResult = vmHelper.invokeViewMethod(newestStateRoot, bestBlockHeight, contractAddress, NRC20_METHOD_TOTAL_SUPPLY, null, null);
        if (programResult.isSuccess()) {
            String totalSupply = programResult.getResult();
            if (StringUtils.isNotBlank(totalSupply)) {
                try {
                    info.setTotalSupply(new BigInteger(totalSupply));
                } catch (Exception e) {
                    Log.error("Get nrc20 totalSupply error.", e);
                // skip it
                }
            }
        }
        // 刷新创建者的token余额
        vmHelper.refreshTokenBalance(newestStateRoot, info, senderStr, contractAddressStr);
        // 处理合约事件
        vmHelper.dealEvents(newestStateRoot, tx, contractResult, info);
    }
    Result result = contractAddressStorageService.saveContractAddress(contractAddress, info);
    return result;
}

Example 7 with ProgramResult

use of io.nuls.contract.vm.program.ProgramResult in project nuls by nuls-io.

the class NativeAddress method call.

private static String call(String address, String methodName, String methodDesc, String[][] args, BigInteger value, Frame frame) {
    if (value.compareTo(BigInteger.ZERO) < 0) {
        throw new ErrorException(String.format("amount less than zero, value=%s", value), frame.vm.getGasUsed(), null);
    }
    ProgramInvoke programInvoke = frame.vm.getProgramInvoke();
    ProgramCall programCall = new ProgramCall();
    programCall.setNumber(programInvoke.getNumber());
    programCall.setSender(programInvoke.getContractAddress());
    programCall.setValue(value != null ? value : BigInteger.ZERO);
    programCall.setGasLimit(programInvoke.getGasLimit() - frame.vm.getGasUsed());
    programCall.setPrice(programInvoke.getPrice());
    programCall.setContractAddress(NativeAddress.toBytes(address));
    programCall.setMethodName(methodName);
    programCall.setMethodDesc(methodDesc);
    programCall.setArgs(args);
    programCall.setEstimateGas(programInvoke.isEstimateGas());
    programCall.setViewMethod(programInvoke.isViewMethod());
    programCall.setInternalCall(true);
    if (programCall.getValue().compareTo(BigInteger.ZERO) > 0) {
        checkBalance(programCall.getSender(), programCall.getValue(), frame);
        frame.vm.getProgramExecutor().getAccount(programCall.getSender()).addBalance(programCall.getValue().negate());
        ProgramTransfer programTransfer = new ProgramTransfer(programCall.getSender(), programCall.getContractAddress(), programCall.getValue());
        frame.vm.getTransfers().add(programTransfer);
    }
    ProgramResult programResult = frame.vm.getProgramExecutor().callProgramExecutor().call(programCall);
    frame.vm.addGasUsed(programResult.getGasUsed());
    if (programResult.isSuccess()) {
        frame.vm.getTransfers().addAll(programResult.getTransfers());
        frame.vm.getEvents().addAll(programResult.getEvents());
        return programResult.getResult();
    } else if (programResult.isError()) {
        // return null;
        throw new ErrorException(programResult.getErrorMessage(), programResult.getGasUsed(), programResult.getStackTrace());
    } else {
        throw new RuntimeException("error contract status");
    }
}