hardhat.config.ts

// @ts-check
require("@nomiclabs/hardhat-waffle");
import "solidity-coverage";
import "hardhat-jest-plugin";
// declaration merging で hre.ethers を生やしているので反映する
import "@nomiclabs/hardhat-ethers";

import { HardhatUserConfig } from "hardhat/config";
import { task } from "hardhat/config";
import { Contract } from "@ethersproject/contracts";
import { HardhatRuntimeEnvironment } from "hardhat/types";

async function getDeployGasUsed(
  hre: HardhatRuntimeEnvironment,
  contract: Contract
) {
  const txReceipt = await hre.ethers.provider.getTransactionReceipt(
    contract.deployTransaction.hash
  );

  return txReceipt.gasUsed.toString();
}

async function getMintGasUsed(
  hre: HardhatRuntimeEnvironment,
  contract: Contract
) {
  const accounts = await hre.ethers.getSigners();

  const tx = await contract.functions["mint(address,uint256)"](
    accounts[0].address,
    1
  );
  const txReceipt = await hre.ethers.provider.getTransactionReceipt(tx.hash);

  return txReceipt.gasUsed.toString();
}

async function getTransferFromGasUsed(
  hre: HardhatRuntimeEnvironment,
  contract: Contract
) {
  const accounts = await hre.ethers.getSigners();

  await contract.functions["mint(address,uint256)"](accounts[0].address, 10);
  const tx = await contract.functions["transferFrom(address,address,uint256)"](
    accounts[0].address,
    accounts[1].address,
    10
  );

  const txReceipt = await hre.ethers.provider.getTransactionReceipt(tx.hash);

  return txReceipt.gasUsed.toString();
}

task("measure", "deploy/mint/transferFrom のコストを計測").setAction(
  async (_, hre) => {
    const contractNames = [
      "Basic",
      "CaseBurnable",
      "CaseEnumerable",
      "CaseMetadata",
      "CasePausable",
    ];

    for (const contractName of contractNames) {
      const contract = await hre.ethers.getContractFactory(contractName);
      const instance = await contract.deploy();

      await instance.deployed();

      console.log(contractName);
      console.log("deploy", await getDeployGasUsed(hre, instance));
      console.log("mint", await getMintGasUsed(hre, instance));
      console.log("transferFrom", await getTransferFromGasUsed(hre, instance));
    }
  }
);

function getAccounts() {
  const privateKey = process.env.PRIVATE_KEY;
  if (privateKey) {
    return [privateKey];
  }
}

const config: HardhatUserConfig = {
  solidity: {
    version: "0.5.17",
    settings: {
      optimizer: {
        enabled: false,
        runs: 1000,
      },
    },
  },
  networks: {
    hardhat: {
      hardfork: "muirGlacier",
    },
    ropsten: {
      url: "https://ropsten.infura.io/v3/60d0008ec52149f5a639ba70fc6086df",
      // accounts: getAccounts()
    },
  },
};

export default config;