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// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

/// @title Llama Executor
/// @author Llama ([email protected])
/// @notice The exit point of a Llama instance. It calls the target contract during action execution.
contract LlamaExecutor {
  /// @dev Only callable by a Llama instance's core contract.
  error OnlyLlamaCore();

  /// @notice The core contract for this Llama instance.
  address public immutable LLAMA_CORE;

  /// @dev This contract is deployed from the core's `initialize` function.
  constructor() {
    LLAMA_CORE = msg.sender;
  }

  /// @notice Called by `executeAction` in the core contract to make the call described by the action.
  /// @dev Using a separate executor contract ensures `target` being delegatecalled cannot write to `LlamaCore`'s
  /// storage. By using a sole executor for calls and delegatecalls,
  /// a Llama instance is represented by one contract address.
  /// @param target The contract called when the action is executed.
  /// @param isScript A boolean that determines if the target is a script and should be delegatecalled.
  /// @param data Data to be called on the `target` when the action is executed.
  /// @return success A boolean that indicates if the call succeeded.
  /// @return result The data returned by the function being called.
  function execute(address target, bool isScript, bytes calldata data)
    external
    payable
    returns (bool success, bytes memory result)
  {
    if (msg.sender != LLAMA_CORE) revert OnlyLlamaCore();
    (success, result) = isScript ? target.delegatecall(data) : target.call{value: msg.value}(data);
  }
}

{
  "remappings": [
    "@openzeppelin/=lib/openzeppelin-contracts/contracts/",
    "@solmate/=lib/solmate/src/",
    "@solady/=lib/solady/src/",
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "solady/=lib/solady/src/",
    "solmate/=lib/solmate/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 10000000
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "none",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "libraries": {}
}

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[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"OnlyLlamaCore","type":"error"},{"inputs":[],"name":"LLAMA_CORE","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bool","name":"isScript","type":"bool"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"execute","outputs":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"result","type":"bytes"}],"stateMutability":"payable","type":"function"}]

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