Add a getter for the claimed bond flag (#9466)

packages/contracts-bedrock/semver-lock.json

@@ -96,8 +96,8 @@
     "sourceCodeHash": "0xe1891e7e6a1928b9a2ddc47d1f010650f1125a0617b8bf32190176a3bb674b4f"
   },
   "src/dispute/FaultDisputeGame.sol": {
-    "initCodeHash": "0xba582b158027b434b4e7d4d1edc073c7fce8b499c5ce8da03ea98c173c530f5d",
-    "sourceCodeHash": "0xd5f0f679c4559b277287f1844fb03ed47c702fcffff3c4aaea0e0ce8fc7d0760"
+    "initCodeHash": "0xca9b1b10500ef59c60f0d575cc3bad28bf6554fbbd1edc26ee0e9225e2c36c86",
+    "sourceCodeHash": "0xd1e1f952c6112f5126601740cfabfdd3e5692cfaadcc9f5316a30bd48c10cc0b"
   },
   "src/legacy/DeployerWhitelist.sol": {
     "initCodeHash": "0x8de80fb23b26dd9d849f6328e56ea7c173cd9e9ce1f05c9beea559d1720deb3d",

packages/contracts-bedrock/snapshots/abi/FaultDisputeGame.json

@@ -174,6 +174,19 @@
     "stateMutability": "view",
     "type": "function"
   },
+  {
+    "inputs": [],
+    "name": "claimedBondFlag",
+    "outputs": [
+      {
+        "internalType": "uint128",
+        "name": "claimedBondFlag_",
+        "type": "uint128"
+      }
+    ],
+    "stateMutability": "pure",
+    "type": "function"
+  },
   {
     "inputs": [],
     "name": "createdAt",

packages/contracts-bedrock/snapshots/abi/PermissionedDisputeGame.json

@@ -184,6 +184,19 @@
     "stateMutability": "view",
     "type": "function"
   },
+  {
+    "inputs": [],
+    "name": "claimedBondFlag",
+    "outputs": [
+      {
+        "internalType": "uint128",
+        "name": "claimedBondFlag_",
+        "type": "uint128"
+      }
+    ],
+    "stateMutability": "pure",
+    "type": "function"
+  },
   {
     "inputs": [],
     "name": "createdAt",

packages/contracts-bedrock/src/dispute/FaultDisputeGame.sol

@@ -50,6 +50,9 @@ contract FaultDisputeGame is IFaultDisputeGame, Clone, ISemver {
     /// @notice The global root claim's position is always at gindex 1.
     Position internal constant ROOT_POSITION = Position.wrap(1);
 
+    /// @notice The flag set in the `bond` field of a `ClaimData` struct to indicate that the bond has been claimed.
+    uint128 internal constant CLAIMED_BOND_FLAG = type(uint128).max;
+
     /// @notice The starting timestamp of the game
     Timestamp public createdAt;
 
@@ -81,8 +84,8 @@ contract FaultDisputeGame is IFaultDisputeGame, Clone, ISemver {
     bool internal initialized;
 
     /// @notice Semantic version.
-    /// @custom:semver 0.2.1
-    string public constant version = "0.2.1";
+    /// @custom:semver 0.3.0
+    string public constant version = "0.3.0";
 
     /// @param _gameType The type ID of the game.
     /// @param _absolutePrestate The absolute prestate of the instruction trace.
@@ -550,6 +553,12 @@ contract FaultDisputeGame is IFaultDisputeGame, Clone, ISemver {
         if (!success) revert BondTransferFailed();
     }
 
+    /// @notice Returns the flag set in the `bond` field of a `ClaimData` struct to indicate that the bond has been
+    ///         claimed.
+    function claimedBondFlag() external pure returns (uint128 claimedBondFlag_) {
+        claimedBondFlag_ = CLAIMED_BOND_FLAG;
+    }
+
     ////////////////////////////////////////////////////////////////
     //                     IMMUTABLE GETTERS                      //
     ////////////////////////////////////////////////////////////////
@@ -599,8 +608,8 @@ contract FaultDisputeGame is IFaultDisputeGame, Clone, ISemver {
     function _distributeBond(address _recipient, ClaimData storage _bonded) internal {
         // Set all bits in the bond value to indicate that the bond has been paid out.
         uint256 bond = _bonded.bond;
-        if (bond == type(uint128).max) revert ClaimAlreadyResolved();
-        _bonded.bond = type(uint128).max;
+        if (bond == CLAIMED_BOND_FLAG) revert ClaimAlreadyResolved();
+        _bonded.bond = CLAIMED_BOND_FLAG;
 
         // Increase the recipient's credit.
         credit[_recipient] += bond;