ashwinYardi

/**
 * Javascript module to construct and hash EIP-712 typed messages to be signed by private key.
 * [EIP712]{@link https://github.com/ethereum/EIPs/blob/master/EIPS/eip-712.md} standard
 *
 * @author Ashwin Yardi
 * @module eip712Signature
 */

const { padLeft, sha3 } = require("web3-utils");
const web3EthAbi = require("web3-eth-abi");

ashwinYardi

// Solidity program to demonstrate
// value types
pragma solidity ^ 0.8.5;  
  
// Creating a contract
contract DemoValueTypes {  
   // Initializing Bool variable
   bool public boolean;
   
   // Initializing Integer variable

ashwinYardi

// Solidity program to demonstrate
// reference types
pragma solidity ^ 0.8.5;  
  
// Creating a contract
contract DemoReferenceTypes {
   // Defining an array of fixed size  
   uint[5] public fixedSizeArray = [uint(1), 2, 3, 4, 5];
    
   // Defining a Structure

ashwinYardi

// Solidity program to demonstrate
// how modifying storage items is expensive
pragma solidity ^ 0.8.5;   
   
contract StorageVariableDemo
{
    uint public temp;
 
   /*
   * @description:Below function runs the for loop 100 times and updates

ashwinYardi

import { ethers } from "hardhat";
import keccak256 from "keccak256";
import { MerkleTree } from "merkletreejs";
import { merkleTreeLeaves, validAddress, invalidAddress } from "./utils/mock-data";
import { MerkleVerifier } from "../typechain-types/MerkleVerifier";

let merkleTree: MerkleTree;
let merkleVerifier: MerkleVerifier;

function generateMerkleTree() {

ashwinYardi

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.4;

import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";

contract MerkleVerifier {
    bytes32 public merkleRoot;

    constructor(bytes32 _merkleRoot) {

ashwinYardi

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.0;

contract Storage {
  uint firstVar;
  uint secondVar;
  string thirdVar;
  string fourthVar;
}

ashwinYardi

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.0;

contract FacetA {

    struct DiamondStorage {
        uint firstVar;
        uint secondVar;
    }

ashwinYardi

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.7;

contract DemoErrors {

    function demoRequire(uint input) public pure {
        require(input > 5, "input must be greater than 5");
    }

    function demoRevert(uint input) public pure {

ashwinYardi

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.7;

contract DemoCustomError {

    error Unauthorized();
    error myCustomError(string message);

    address public owner = address(0x0);