migrate to solidity 0.8. xDAI list

Author: clbrge

contracts/IRGEToken.sol

@@ -1,11 +1,6 @@
 // SPDX-License-Identifier: AGPL-3.0-only
-/*
 
-  RGE token Interface
-
-*/
-
-pragma solidity ^0.6.0;
+pragma solidity ^0.8.0;
 
 import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 

contracts/Migrations.sol

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: AGPL-3.0-only
 
-pragma solidity ^0.6.0;
+pragma solidity ^0.8.0;
 
 contract Migrations {
 
@@ -12,7 +12,7 @@ contract Migrations {
     if (msg.sender == owner) _;
   }
 
-  constructor() public {
+  constructor() {
     owner = msg.sender;
   }
 

contracts/BridgeRGEToken.sol renamed to contracts/POA/BridgeRGEToken.sol

@@ -7,7 +7,7 @@
 
 */
 
-pragma solidity ^0.6.0;
+pragma solidity ^0.8.0;
 
 import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
 
@@ -32,15 +32,18 @@ contract BridgeRGEToken is ERC20 {
     address public homeBridge;               
     address public homeValidator;         /* validator in the RougeBridge contract on the home RGE network */
 
-    constructor(uint _network, address _validator, address _homeBridge, address _homeValidator, string memory _name, string memory _symbol) public ERC20(_name, _symbol)  {
+    constructor(uint _network, address _validator, address _homeBridge, address _homeValidator, string memory _name, string memory _symbol) ERC20(_name, _symbol)  {
         owner = msg.sender;
         network = _network;
         validator = _validator;
         homeBridge = _homeBridge;
         homeValidator = _homeValidator;
-        _setupDecimals(6);
     }
 
+    function decimals() public pure override returns (uint8) {
+        return 6;
+    }
+
     function newOwner(address _account) onlyBy(owner) public {
         owner = _account;
     }

contracts/TestRGEToken.sol

@@ -7,7 +7,7 @@
 
 */
 
-pragma solidity ^0.6.0;
+pragma solidity ^0.8.0;
 
 import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
 
@@ -32,12 +32,15 @@ contract TestRGEToken is ERC20 {
         _;
     }
 
-    constructor() public ERC20("TEST Rouge", "RGE") {
+    constructor() ERC20("TEST Rouge", "RGE") {
         owner = msg.sender;
-        _setupDecimals(DECIMALS);
         _mint(owner, _totalSupply);
     }
 
+    function decimals() public view override returns (uint8) {
+        return DECIMALS;
+    }
+
     function giveMeRGE(uint256 _value) public returns (bool success) {
         require(balanceOf(msg.sender) + _value <= maxBalance);
         require(balanceOf(owner) >= ownerMin + _value);

contracts/IRougeFactory.sol renamed to contracts/v0/IRougeFactory.sol

@@ -5,9 +5,9 @@
 
 */
 
-pragma solidity ^0.6.0;
+pragma solidity ^0.8.0;
 
-import "./IRGEToken.sol";
+import "../IRGEToken.sol";
 
 interface IRougeFactory {
 

contracts/RougeBridge.sol renamed to contracts/v0/RougeBridge.sol

@@ -5,9 +5,9 @@
 
 */
 
-pragma solidity ^0.6.0;
+pragma solidity ^0.8.0;
 
-import "./IRGEToken.sol";
+import "../IRGEToken.sol";
 
 contract RougeBridge {
 
@@ -22,7 +22,7 @@ contract RougeBridge {
 
     IRGEToken public rge;
 
-    constructor(address _rge) public {
+    constructor(address _rge) {
         owner = msg.sender;
         rge = IRGEToken(_rge);
     }

contracts/RougeFactory.sol renamed to contracts/v0/RougeFactory.sol

@@ -5,7 +5,7 @@
 
 */
 
-pragma solidity ^0.6.0;
+pragma solidity ^0.8.0;
 
 import "./SimpleRougeCampaign.sol";
 
@@ -19,7 +19,7 @@ contract RougeFactory {
 
     address owner;
 
-    constructor() public {
+    constructor() {
         owner = msg.sender;
     }
 

contracts/SimpleRougeCampaign.sol renamed to contracts/v0/SimpleRougeCampaign.sol

@@ -5,9 +5,9 @@
 
 */
 
-pragma solidity ^0.6.0;
+pragma solidity ^0.8.0;
 
-import "./IRGEToken.sol";
+import "../IRGEToken.sol";
 
 import "./IRougeFactory.sol";
 
@@ -78,7 +78,7 @@ contract SimpleRougeCampaign {
     uint32 public acquired;
     uint32 public redeemed;
 
-    constructor(address payable _issuer, uint32 _issuance, address _rge, uint256 _tare, address _factory) public {
+    constructor(address payable _issuer, uint32 _issuance, address _rge, uint256 _tare, address _factory) {
         require(_issuance > 0);
 
         issuer = _issuer;
@@ -177,8 +177,8 @@ contract SimpleRougeCampaign {
         require(rgeBalance >= issuance * tare);
 
         // minimum campaign duration 12 hours, maximum 360 days (XXX could be a param for tare ?)
-        require(_campaignExpiration >= now + 60*60*12);
-        require(_campaignExpiration <= now + 60*60*24*360);
+        require(_campaignExpiration >= block.timestamp + 60*60*12);
+        require(_campaignExpiration <= block.timestamp + 60*60*24*360);
 
         name = _name;
         campaignIssued = true;
@@ -205,7 +205,7 @@ contract SimpleRougeCampaign {
 
     modifier CampaignOpen() {
         require(campaignIssued);
-        require(now < campaignExpiration);
+        require(block.timestamp < campaignExpiration);
         _;
     }
 
@@ -242,7 +242,7 @@ contract SimpleRougeCampaign {
         require(_hash == keccak256(abi.encodePacked('acceptAcquisition', this, msg.sender)));
         require(isAuthorized[_attestor][uint(Authorization.All)] || isAuthorized[_attestor][uint(Authorization.Acquisition)]);
         require(ecrecover(RougeCampaign.prefixed(_hash), v, r, s) == _attestor);
-        return acquisition(msg.sender);
+        return acquisition(payable(msg.sender));
     }
 
     function distributeNote(address payable _bearer) CampaignOpen isAttestor(Authorization.Acquisition) public returns (bool success) {
@@ -302,7 +302,7 @@ contract SimpleRougeCampaign {
         require(_hash == keccak256(abi.encodePacked('acceptRedemption', this, msg.sender)));
         require(isAuthorized[_attestor][uint(Authorization.All)] || isAuthorized[_attestor][uint(Authorization.Redemption)]);
         require(ecrecover(RougeCampaign.prefixed(_hash), v, r, s) == _attestor);
-        return redemption(msg.sender);
+        return redemption(payable(msg.sender));
     }
 
     function acceptRedemption(address payable _bearer, bytes32 _hash, uint8 v, bytes32 r, bytes32 s)

migrations/2_deploy_contracts.js

@@ -1,9 +1,9 @@
 
-const RGETokenInterface = artifacts.require("./RGETokenInterface.sol")
+const IRGEToken = artifacts.require("./IRGEToken.sol")
 const TestRGEToken = artifacts.require("./TestRGEToken.sol")
-const RougeFactory = artifacts.require("./RougeFactory.sol")
+const RougeFactory = artifacts.require("./v0/RougeFactory.sol")
 
-const RougeBridge = artifacts.require("./RougeBridge.sol")
+const RougeBridge = artifacts.require("./v0/RougeBridge.sol")
 // const BridgeRGEToken = artifacts.require("./BridgeRGEToken.sol")
 
 module.exports = async function(deployer, network) {
@@ -39,7 +39,7 @@ module.exports = async function(deployer, network) {
 
   if (network && rgeAddress[network]) {
 
-    const rge = await RGETokenInterface.at(rgeAddress[network])
+    const rge = await IRGEToken.at(rgeAddress[network])
 
     await deployer.deploy(RougeFactory)
     const factory = await RougeFactory.deployed()

misc/rouge-tokenlist.json

@@ -28,11 +28,22 @@
       "tags": [
         "voucher"
       ]
+    },
+    {
+      "chainId": 100,
+      "address": "0x01ffe9982CB900dA7b6Faa84fF06a2BF43a149cd",
+      "symbol": "RGE",
+      "name": "Rouge on xDAI",
+      "decimals": 6,
+      "logoURI": "https://rouge.network/logo-100.png",
+      "tags": [
+        "voucher"
+      ]
     }
   ],
   "version": {
     "major": 1,
-    "minor": 0,
-    "patch": 2
+    "minor": 1,
+    "patch": 1
   }
 }