Skip to main content

Facet.sol

Access Layer: Facet.sol​

  • Facet.sol acts as the base contract for all logic modules in the Garden.
  • It defines the core access control rules that every module follows.
  • Its primary role is to protect the system from unauthorized or unsafe actions, especially during sensitive operations.

Main idea: Restricted Interactions During Index Connection​

  • When a Garden is connected to an Index, certain operations become more restrictive.
  • Direct user interaction is limited during automated processes like rebalancing.
  • This helps prevent:
    • Front-running (users exploiting timing for profit)
    • State inconsistencies caused by unexpected external actions

DEX Caller Restriction​

  • During a rebalance, swap functions can only be executed by the Garden contract itself.
  • External users or contracts are not allowed to trigger these swaps.
  • This restriction ensures:
    • Controlled execution of trades
    • No external interference
    • Consistent and predictable system behavior
/// @notice Checks if the caller is the garden itself when connected to an index
function _onlyGardenCanCallDexWhenIndexConnected() internal view {
    LibDiamond.Layout storage ld = LibDiamond.layout();
    if (ld.isConnectedToIndex) {
        // Enforce Diamond self-calls only
        if (msg.sender != address(this)) {
            revert Garden_OnlyGardenCanCallDexWhenIndexConnected();
        }
    } else {
        // If not connected to an index, fallback to owner validation
        if (msg.sender != OwnershipStorage.layout().owner) {
            revert Garden_UnauthorizedCaller();
        }
    }
}