Fix withdrawal-map cleanup before RC2 publication

CHANGELOG.md

@@ -1,6 +1,7 @@
 V2.0.0-rc.2
 ---------------------
 
+- Release temporary withdrawal-map reward addresses immediately and preserve unsigned 64-bit withdrawal amounts when reading maps.
 - Bundle cardano-c 2.0.0-rc.5 so transaction inspection includes Dijkstra fields and nested witnesses.
 - Fix documentation generation and check the docs build in CI.
 - Add Dijkstra transaction examples to the README.

src/marshaling/withdrawalMap.ts

@@ -49,12 +49,13 @@ export const readWithdrawalMap = (mapPtr: number): Withdrawals => {
       );
 
       rewardAddressPtr = module.getValue(rewardAddressPtrPtr, 'i32');
-      const rewardAddress = new RewardAddress(rewardAddressPtr);
+      const rewardAddress = new RewardAddress(rewardAddressPtr, false);
 
       const low = module.getValue(amountPtr, 'i32') >>> 0;
-      const high = module.getValue(amountPtr + 4, 'i32');
+      const high = module.getValue(amountPtr + 4, 'i32') >>> 0;
       result[rewardAddress.toBech32()] = (BigInt(high) << 32n) | BigInt(low);
     } finally {
+      if (rewardAddressPtr) unrefObject(rewardAddressPtr);
       module._free(rewardAddressPtrPtr);
       module._free(amountPtr);
     }

test/marshaling/withdrawalMap.test.ts

@@ -31,7 +31,7 @@ describe('WithdrawalMap', () => {
   };
 
   const withdrawals2: Cometa.Withdrawals = {
-    stake178phkx6acpnf78fuvxn0mkew3l0fd058hzquvz7w36x4gtcccycj5: 999999999999999999n
+    stake178phkx6acpnf78fuvxn0mkew3l0fd058hzquvz7w36x4gtcccycj5: 0xffffffffffffffffn
   };
 
   beforeAll(async () => {