feat: Target latest EVM version

contracts/Store.sol

@@ -70,9 +70,7 @@ abstract contract Store {
         mapping(address => mapping(address => uint256)) m_allowances;
         // EIP-712 domain hash.
         // Modified in IexecConfigurationFacet.updateDomainSeparator
-        bytes32 EIP712DOMAIN_SEPARATOR; // TODO rename
-        // Poco - Storage
-
+        bytes32 m_eip712DomainSeparator;
         // Mapping an order hash to its owner. Since a smart contract cannot sign orders
         // with a private key, it adds an entry to this mapping to provide presigned orders.
         mapping(bytes32 => address) m_presigned;

contracts/Store.v8.sol

@@ -64,9 +64,7 @@ abstract contract Store {
         mapping(address => mapping(address => uint256)) m_allowances;
         // EIP-712 domain hash.
         // Modified in IexecConfigurationFacet.updateDomainSeparator
-        bytes32 EIP712DOMAIN_SEPARATOR; // TODO rename
-        // Poco - Storage
-
+        bytes32 m_eip712DomainSeparator;
         // Mapping an order hash to its owner. Since a smart contract cannot sign orders
         // with a private key, it adds an entry to this mapping to provide presigned orders.
         mapping(bytes32 => address) m_presigned;

contracts/facets/FacetBase.sol

@@ -7,8 +7,7 @@ import "../Store.sol";
 import "../interfaces/IOwnable.sol";
 
 // Functions that were declared in ERC1538Store are re-declared here.
-// TODO clean this (use LibDiamond)
-//      - All calls to `owner()` should use `LibDiamond.contractOwner()`.
+// TODO use LibDiamond.contractOwner() when migrating all contracts to v8.
 
 /**
  * @title Base contract of all Facet contracts.

contracts/facets/FacetBase.v8.sol

@@ -7,8 +7,7 @@ import {IERC5313} from "@openzeppelin/contracts-v5/interfaces/IERC5313.sol";
 import {Store} from "../Store.v8.sol";
 
 // Functions that were declared in ERC1538Store are re-declared here.
-// TODO clean this (use LibDiamond)
-//      - All calls to `owner()` should use `LibDiamond.contractOwner()`.
+// TODO use LibDiamond.contractOwner() when migrating all contracts to v8.
 
 /**
  * @title Base contract of all Facet contracts.

contracts/facets/IexecAccessorsFacet.sol

@@ -170,6 +170,6 @@ contract IexecAccessorsFacet is IexecAccessors, FacetBase {
 
     function eip712domain_separator() external view override returns (bytes32) {
         PocoStorage storage $ = getPocoStorage();
-        return $.EIP712DOMAIN_SEPARATOR;
+        return $.m_eip712DomainSeparator;
     }
 }

contracts/facets/IexecConfigurationFacet.sol

@@ -25,8 +25,8 @@ contract IexecConfigurationFacet is IexecConfiguration, FacetBase {
         address _v3_iexecHubAddress
     ) external override onlyOwner {
         PocoStorage storage $ = getPocoStorage();
-        require($.EIP712DOMAIN_SEPARATOR == bytes32(0), "already-configured");
-        $.EIP712DOMAIN_SEPARATOR = _domain().hash();
+        require($.m_eip712DomainSeparator == bytes32(0), "already-configured");
+        $.m_eip712DomainSeparator = _domain().hash();
 
         $.m_baseToken = IERC20(_token);
         $.m_name = _name;
@@ -45,8 +45,8 @@ contract IexecConfigurationFacet is IexecConfiguration, FacetBase {
 
     function updateDomainSeparator() external override {
         PocoStorage storage $ = getPocoStorage();
-        require($.EIP712DOMAIN_SEPARATOR != bytes32(0), "not-configured");
-        $.EIP712DOMAIN_SEPARATOR = _domain().hash();
+        require($.m_eip712DomainSeparator != bytes32(0), "not-configured");
+        $.m_eip712DomainSeparator = _domain().hash();
     }
 
     function importScore(address _worker) external override {

contracts/facets/IexecEscrowTokenSwapFacet.sol

@@ -165,27 +165,27 @@ contract IexecEscrowTokenSwapFacet is
         PocoStorage storage $ = getPocoStorage();
         uint256 volume;
         volume = _apporder.volume.sub(
-            $.m_consumed[keccak256(_toEthTypedStruct(_apporder.hash(), $.EIP712DOMAIN_SEPARATOR))]
+            $.m_consumed[keccak256(_toEthTypedStruct(_apporder.hash(), $.m_eip712DomainSeparator))]
         );
         if (_datasetorder.dataset != address(0))
             volume = volume.min(
                 _datasetorder.volume.sub(
                     $.m_consumed[
-                        keccak256(_toEthTypedStruct(_datasetorder.hash(), $.EIP712DOMAIN_SEPARATOR))
+                        keccak256(_toEthTypedStruct(_datasetorder.hash(), $.m_eip712DomainSeparator))
                     ]
                 )
             );
         volume = volume.min(
             _workerpoolorder.volume.sub(
                 $.m_consumed[
-                    keccak256(_toEthTypedStruct(_workerpoolorder.hash(), $.EIP712DOMAIN_SEPARATOR))
+                    keccak256(_toEthTypedStruct(_workerpoolorder.hash(), $.m_eip712DomainSeparator))
                 ]
             )
         );
         volume = volume.min(
             _requestorder.volume.sub(
                 $.m_consumed[
-                    keccak256(_toEthTypedStruct(_requestorder.hash(), $.EIP712DOMAIN_SEPARATOR))
+                    keccak256(_toEthTypedStruct(_requestorder.hash(), $.m_eip712DomainSeparator))
                 ]
             )
         );

contracts/facets/SignatureVerifier.v8.sol

@@ -18,7 +18,7 @@ contract SignatureVerifier is FacetBase {
      */
     function _toTypedDataHash(bytes32 structHash) internal view returns (bytes32) {
         PocoStorage storage $ = getPocoStorage();
-        return MessageHashUtils.toTypedDataHash($.EIP712DOMAIN_SEPARATOR, structHash);
+        return MessageHashUtils.toTypedDataHash($.m_eip712DomainSeparator, structHash);
     }
 
     /**

hardhat.config.ts

@@ -71,13 +71,6 @@ const v8Settings = {
             },
         },
     },
-    // TODO remove this to target the latest EVM version.
-    /**
-     * @dev The 0.8.20 compiler switches the default target EVM version to Shanghai.
-     * At this time, the iExec Bellecour blockchain does not support new OPCODES
-     * brought by the Shanghai fork, hence the target must be lowered.
-     */
-    evmVersion: bellecourBaseConfig.hardfork,
 };
 
 const config: HardhatUserConfig = {

test/byContract/IexecConfiguration/IexecConfiguration.test.ts

@@ -205,7 +205,7 @@ describe('IexecConfiguration', async () => {
     async function setDomainSeparatorInStorage(domainSeparator: string) {
         await setStorageAt(
             proxyAddress,
-            getPocoStorageSlotLocation(11n), // 11 is the slot index of EIP712DOMAIN_SEPARATOR in Store
+            getPocoStorageSlotLocation(11n), // 11 is the slot index of m_eip712DomainSeparator in Store
             domainSeparator,
         );
         // Double check the update of the domain separator happened