From baae0f500e8478c865a700ff01dfd5c0382e05eb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=A9my=20James=20Toussaint?=
 <33313130+jeremyjams@users.noreply.github.com>
Date: Mon, 16 Sep 2024 15:15:22 +0200
Subject: [PATCH] Upgrade Solidity Compiler to v0.8.27

---
 CHANGELOG.md                      |  1 +
 contracts/mocks/IexecPocoMock.sol |  2 +-
 hardhat.config.ts                 | 12 ++----------
 scripts/voucherHubUtils.ts        |  2 +-
 4 files changed, 5 insertions(+), 12 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ccff15a..c759073 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Changelog
 
 ## vNEXT
+- Upgrade Solidity Compiler to `v0.8.27`. (#45)
 - Bump dependencies: (#44)
     - `@openzeppelin/hardhat-upgrades`, `hardhat`, `ethers`, `prettier`, and others [minor version bump]
     - `prettier-plugin-organize-imports@4`
diff --git a/contracts/mocks/IexecPocoMock.sol b/contracts/mocks/IexecPocoMock.sol
index ac002ac..ae39fb7 100644
--- a/contracts/mocks/IexecPocoMock.sol
+++ b/contracts/mocks/IexecPocoMock.sol
@@ -29,7 +29,7 @@ contract IexecPocoMock is ERC20 {
     uint256 public mockTaskIndex = 0;
     bytes32 public mockTaskId = keccak256(abi.encode(mockDealId, mockTaskIndex));
 
-    IexecLibCore_v5.Deal public deal;
+    IexecLibCore_v5.Deal deal;
     IexecLibCore_v5.DealBoost public dealBoost;
     mapping(bytes32 => IexecLibCore_v5.Task) public tasks;
 
diff --git a/hardhat.config.ts b/hardhat.config.ts
index 80e4e7d..e34a654 100644
--- a/hardhat.config.ts
+++ b/hardhat.config.ts
@@ -20,7 +20,7 @@ const config: HardhatUserConfig = {
     solidity: {
         compilers: [
             {
-                version: '0.8.24',
+                version: '0.8.27',
                 settings: {
                     /**
                      * Enable Intermediate Representation (IR) to reduce `Stack too deep` occurrences
@@ -34,15 +34,7 @@ const config: HardhatUserConfig = {
                         details: {
                             yul: true,
                             yulDetails: {
-                                /**
-                                 * Disable temporarily.
-                                 * Causes:
-                                 * YulException: Cannot swap Slot RET with Variable value10: too deep in the stack
-                                 * by 1 slots in [ RET value15 value14 value13 value12 value11 headStart value9
-                                 * value8 value7 value6 value5 value4 value3 value2 value1 value0 value10 ]
-                                 * memoryguard was present.
-                                 */
-                                // optimizerSteps: 'u',
+                                optimizerSteps: 'u',
                             },
                         },
                     },
diff --git a/scripts/voucherHubUtils.ts b/scripts/voucherHubUtils.ts
index b2a7562..629e467 100644
--- a/scripts/voucherHubUtils.ts
+++ b/scripts/voucherHubUtils.ts
@@ -94,6 +94,6 @@ export async function getExpectedVoucherProxyCodeHash(voucherBeaconAddress: stri
          * Note: Look very carefully before updating this value to avoid messing with
          * existing vouchers already deployed in production.
          */
-        return '0xebe0c40d5e931d865b61665b4e9435cc65ece10955457af1b4271e3438e4949e';
+        return '0x386d2735c0e7b2144a00e43bc5451acd8063573f30f1edc7b8e8891039cbd84f';
     }
 }