steps

contracts/v2/mocks/BridgeReceiverMock.sol

@@ -0,0 +1,165 @@
+// SPDX-License-Identifier: AGPL-3.0
+
+import "../PolygonZkEVMBridgeV2.sol";
+
+pragma solidity 0.8.20;
+
+/**
+ * Contract for compressing and decompressing claim data
+ */
+contract BridgeReceiverMock {
+    uint256 internal constant _DEPOSIT_CONTRACT_TREE_DEPTH = 32;
+
+    event FallbackEvent(bytes calldataBytes);
+
+    /**
+     * @dev Emitted when bridge assets or messages to another network
+     */
+    event ClaimAsset(
+        bytes32[_DEPOSIT_CONTRACT_TREE_DEPTH] smtProofLocalExitRoot,
+        bytes32[_DEPOSIT_CONTRACT_TREE_DEPTH] smtProofRollupExitRoot,
+        uint256 globalIndex,
+        bytes32 mainnetExitRoot,
+        bytes32 rollupExitRoot,
+        uint32 originNetwork,
+        address originTokenAddress,
+        uint32 destinationNetwork,
+        address destinationAddress,
+        uint256 amount,
+        bytes metadata
+    );
+
+    /**
+     * @dev Emitted when bridge assets or messages to another network
+     */
+    event ClaimMessage(
+        bytes32[_DEPOSIT_CONTRACT_TREE_DEPTH] smtProofLocalExitRoot,
+        bytes32[_DEPOSIT_CONTRACT_TREE_DEPTH] smtProofRollupExitRoot,
+        uint256 globalIndex,
+        bytes32 mainnetExitRoot,
+        bytes32 rollupExitRoot,
+        uint32 originNetwork,
+        address originTokenAddress,
+        uint32 destinationNetwork,
+        address destinationAddress,
+        uint256 amount,
+        bytes metadata
+    );
+
+    /**
+     * @notice Verify merkle proof and withdraw tokens/ether
+     * @param smtProofLocalExitRoot Smt proof to proof the leaf against the network exit root
+     * @param smtProofRollupExitRoot Smt proof to proof the rollupLocalExitRoot against the rollups exit root
+     * @param globalIndex Global index is defined as:
+     * | 191 bits |    1 bit     |   32 bits   |     32 bits    |
+     * |    0     |  mainnetFlag | rollupIndex | localRootIndex |
+     * note that only the rollup index will be used only in case the mainnet flag is 0
+     * note that global index do not assert the unused bits to 0.
+     * This means that when synching the events, the globalIndex must be decoded the same way that in the Smart contract
+     * to avoid possible synch attacks
+     * @param mainnetExitRoot Mainnet exit root
+     * @param rollupExitRoot Rollup exit root
+     * @param originNetwork Origin network
+     * @param originTokenAddress  Origin token address, 0 address is reserved for ether
+     * @param destinationNetwork Network destination
+     * @param destinationAddress Address destination
+     * @param amount Amount of tokens
+     * @param metadata Abi encoded metadata if any, empty otherwise
+     */
+    function claimAssetAA(
+        bytes32[_DEPOSIT_CONTRACT_TREE_DEPTH] calldata smtProofLocalExitRoot,
+        bytes32[_DEPOSIT_CONTRACT_TREE_DEPTH] calldata smtProofRollupExitRoot,
+        uint256 globalIndex,
+        bytes32 mainnetExitRoot,
+        bytes32 rollupExitRoot,
+        uint32 originNetwork,
+        address originTokenAddress,
+        uint32 destinationNetwork,
+        address destinationAddress,
+        uint256 amount,
+        bytes calldata metadata
+    ) external {
+        emit ClaimAsset(
+            smtProofLocalExitRoot,
+            smtProofRollupExitRoot,
+            globalIndex,
+            mainnetExitRoot,
+            rollupExitRoot,
+            originNetwork,
+            originTokenAddress,
+            destinationNetwork,
+            destinationAddress,
+            amount,
+            metadata
+        );
+    }
+
+    /**
+     * @notice Verify merkle proof and execute message
+     * If the receiving address is an EOA, the call will result as a success
+     * Which means that the amount of ether will be transferred correctly, but the message
+     * will not trigger any execution
+     * @param smtProofLocalExitRoot Smt proof to proof the leaf against the exit root
+     * @param smtProofRollupExitRoot Smt proof to proof the rollupLocalExitRoot against the rollups exit root
+     * @param globalIndex Global index is defined as:
+     * | 191 bits |    1 bit     |   32 bits   |     32 bits    |
+     * |    0     |  mainnetFlag | rollupIndex | localRootIndex |
+     * note that only the rollup index will be used only in case the mainnet flag is 0
+     * note that global index do not assert the unused bits to 0.
+     * This means that when synching the events, the globalIndex must be decoded the same way that in the Smart contract
+     * to avoid possible synch attacks
+     * @param mainnetExitRoot Mainnet exit root
+     * @param rollupExitRoot Rollup exit root
+     * @param originNetwork Origin network
+     * @param originAddress Origin address
+     * @param destinationNetwork Network destination
+     * @param destinationAddress Address destination
+     * @param amount message value
+     * @param metadata Abi encoded metadata if any, empty otherwise
+     */
+    function claimMessageBB(
+        bytes32[_DEPOSIT_CONTRACT_TREE_DEPTH] calldata smtProofLocalExitRoot,
+        bytes32[_DEPOSIT_CONTRACT_TREE_DEPTH] calldata smtProofRollupExitRoot,
+        uint256 globalIndex,
+        bytes32 mainnetExitRoot,
+        bytes32 rollupExitRoot,
+        uint32 originNetwork,
+        address originAddress,
+        uint32 destinationNetwork,
+        address destinationAddress,
+        uint256 amount,
+        bytes calldata metadata
+    ) external {
+        // assembly {
+        //     let ptr := mload(0x40)
+
+        //     let size := add(calldatasize(), 28) // 4 bytes calldata
+
+        //     mstore(ptr, 0x20) // dataPos
+
+        //     mstore(add(ptr, 0x20), size) // data len
+
+        //     calldatacopy(add(ptr, 0x40), 0, size) // data
+
+        //     return(ptr, add(size, 0x40))
+        // }
+
+        emit ClaimMessage(
+            smtProofLocalExitRoot,
+            smtProofRollupExitRoot,
+            globalIndex,
+            mainnetExitRoot,
+            rollupExitRoot,
+            originNetwork,
+            originAddress,
+            destinationNetwork,
+            destinationAddress,
+            amount,
+            metadata
+        );
+    }
+
+    fallback(bytes calldata input) external returns (bytes memory) {
+        emit FallbackEvent(input);
+    }
+}