mudgen

/**
 *Submitted for verification at polygonscan.com on 2021-06-13
*/

pragma solidity 0.5.17;


/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available

mudgen

// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

function doIt() external {
    uint256 length = myArray.length; // state read
    uint b;
    for(uint256 i; i < length; i++) { // local reads
        b++; // local write  
    }
    mySum = b; // state write

mudgen

// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

// Note: A facet is a contract used by a diamond.
// Note: This is a contrived example to show how to share internal functions between facets
// Note: It is not an accurate or complete implementation

// This design of sharing internal functions between facets works because remember the diamond proxy holds all the
// data and the facets read and write to the diamond proxy contract storage-- not to their own contract storage.

mudgen

//SPDX-License-Identifier: MIT
pragma solidity =0.8.9;

library MyLib {
  function appStorage() 
    internal 
    pure 
    returns (AppStorage storage ds) 
  {    
    assembly {

mudgen

//SPDX-License-Identifier: MIT
pragma solidity =0.8.9;

import "./AppStorage.sol"

contract StakingFacet {
  AppStorage internal s;

  function myFacetFunction() external {
    s.lastVar = s.firstVar + s.secondVar;

mudgen

//SPDX-License-Identifier: MIT
pragma solidity =0.8.9;

import "./AppStorage.sol"

contract StakingFacet {
  AppStorage internal s;
  ...

mudgen

//SPDX-License-Identifier: MIT
pragma solidity =0.8.9;

// AppStorage.sol
struct AppStorage {
  uint256 secondVar;
  uint256 firstVar;
  uint256 lastVar;
  ...
}

mudgen

DiamondStorage storage ds = diamondStorage();
bytes4 functionSelector = bytes4(keccak256("myFunction(uint256)"));
// get facet address of function
address facet = ds.selectorToFacet[functionSelector];
bytes memory myFunctionCall = abi.encodeWithSelector(functionSelector, 4);
(bool success, uint result) = address(facet).delegatecall(myFunctionCall);
require(success, "myFunction failed");

mudgen

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

DiamondStorage storage ds = diamondStorage();
bytes4 functionSelector = bytes4(keccak256("myFunction(uint256)"));
// get facet address of function 
address facet = ds.selectorToFacet[functionSelector]; 
bytes memory myFunctionCall = abi.encodeWithSelector(functionSelector, 4); 
(bool success, bytes memory result) = address(facet).delegatecall(myFunctionCall); 
require(success, "myFunction failed"); 

mudgen

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "./AppStorage.sol"

contract StakingFacet {
  AppStorage internal s;

  function myFacetFunction(uint256 _nextVar) external {
    s.total = s.firstVar + _nextVar;