// SPDX-License-Identifier: BUSL-1.1
pragma solidity =0.8.19;

/// @notice a contract which acts as a forwarder that forwards the input from
/// any caller to a a target contract.
contract CallProxy {
    address immutable i_target;

    constructor(address target) {
        i_target = target;
    }

    fallback() external payable {
        address target = i_target;
        assembly {
            // This code destroys Solidity's memory layout.
            // That's fine, because we never return to Solidity anyways,
            // we either return or revert out of the callframe at the end.
            calldatacopy(0, 0, calldatasize())
            let success := call(gas(), target, callvalue(), 0, calldatasize(), 0, 0)
            returndatacopy(0, 0, returndatasize())
            if success { return(0, returndatasize()) }
            revert(0, returndatasize())
        }
    }
}

{
  "compilationTarget": {
    "src/CallProxy.sol": "CallProxy"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": [
    ":ds-test/=lib/forge-std/lib/ds-test/src/",
    ":erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    ":forge-std/=lib/forge-std/src/",
    ":openzeppelin-contracts/=lib/openzeppelin-contracts/contracts/",
    ":openzeppelin/=lib/openzeppelin-contracts/contracts/",
    ":safe-contracts/=lib/safe-contracts/contracts/"
  ]
}