Merge pull request #2 from morpho-org/perf/delegation

Perf/delegation

src/DelegatesContracts/DelegatesUpgradeable.sol → src/DelegatesUpgradeable.sol

@@ -1,8 +1,8 @@
 // SPDX-License-Identifier: MIT
-
 pragma solidity ^0.8.20;
 
-import {IDelegates} from "./IDelegates.sol";
+import {IDelegates} from "./interfaces/IDelegates.sol";
+
 import {ECDSA} from
     "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/utils/cryptography/ECDSA.sol";
 import {ContextUpgradeable} from "lib/openzeppelin-contracts-upgradeable/contracts/utils/ContextUpgradeable.sol";

src/DelegatesContracts/ERC20DelegatesUpgradeable.sol → src/ERC20DelegatesUpgradeable.sol

@@ -1,10 +1,9 @@
 // SPDX-License-Identifier: MIT
-
 pragma solidity ^0.8.20;
 
-import {ERC20Upgradeable} from "lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/ERC20Upgradeable.sol";
 import {DelegatesUpgradeable} from "./DelegatesUpgradeable.sol";
 import {Initializable} from "lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol";
+import {ERC20Upgradeable} from "lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/ERC20Upgradeable.sol";
 /**
  * @dev Extension of ERC20 to support token delegation.                  |
  *
@@ -17,41 +16,13 @@ import {Initializable} from "lib/openzeppelin-contracts-upgradeable/contracts/pr
  */
 
 abstract contract ERC20DelegatesUpgradeable is Initializable, ERC20Upgradeable, DelegatesUpgradeable {
-    /**
-     * @dev Total supply cap has been exceeded, introducing a risk of votes overflowing.
-     */
-    error ERC20ExceededSafeSupply(uint256 increasedSupply, uint256 cap);
-
-    function __ERC20Delegates_init() internal onlyInitializing {}
-
-    function __ERC20Delegates_init_unchained() internal onlyInitializing {}
-    /**
-     * @dev Maximum token supply. Defaults to `type(uint208).max` (2^208^ - 1).
-     *
-     * This maximum is enforced in {_update}. Increasing this value will not remove the underlying limitation, and
-     * will cause {_update} to fail because of a math overflow in {_transferVotingUnits}. An override could be
-     * used to further restrict the total supply (to a lower value) if additional logic requires it. When resolving
-     * override conflicts on this function, the minimum should be returned.
-     */
-
-    function _maxSupply() internal view virtual returns (uint256) {
-        return type(uint256).max;
-    }
-
     /**
      * @dev Move voting power when tokens are transferred.
      *
      * Emits a {IVotes-DelegateVotesChanged} event.
      */
     function _update(address from, address to, uint256 value) internal virtual override {
         super._update(from, to, value);
-        if (from == address(0)) {
-            uint256 supply = totalSupply();
-            uint256 cap = _maxSupply();
-            if (supply > cap) {
-                revert ERC20ExceededSafeSupply(supply, cap);
-            }
-        }
         _transferVotingUnits(from, to, value);
     }
 

src/MorphoToken.sol

@@ -4,7 +4,7 @@ pragma solidity ^0.8.13;
 import {ERC20Upgradeable} from "lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/ERC20Upgradeable.sol";
 import {Ownable2StepUpgradeable} from
     "lib/openzeppelin-contracts-upgradeable/contracts/access/Ownable2StepUpgradeable.sol";
-import {ERC20DelegatesUpgradeable} from "./DelegatesContracts/ERC20DelegatesUpgradeable.sol";
+import {ERC20DelegatesUpgradeable} from "./ERC20DelegatesUpgradeable.sol";
 import {
     ERC20PermitUpgradeable,
     NoncesUpgradeable
@@ -35,7 +35,6 @@ contract MorphoToken is ERC20DelegatesUpgradeable, ERC20PermitUpgradeable, Ownab
         require(dao != address(0), ZeroAddress());
         require(wrapper != address(0), ZeroAddress());
 
-        ERC20DelegatesUpgradeable.__ERC20Delegates_init();
         ERC20Upgradeable.__ERC20_init(NAME, SYMBOL);
         Ownable2StepUpgradeable.__Ownable2Step_init();
         ERC20PermitUpgradeable.__ERC20Permit_init(NAME);