{
    "Function": "replaceFunctions",
    "File": "contracts/contracts/core/connext/libraries/LibDiamond.sol",
    "Parent Contracts": [],
    "High-Level Calls": [],
    "Internal Calls": [
        "removeFunction",
        "addFunction",
        "addFacet",
        "require(bool,string)",
        "require(bool,string)",
        "require(bool,string)",
        "diamondStorage"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function replaceFunctions(address _facetAddress, bytes4[] memory _functionSelectors) internal {\n    require(_functionSelectors.length > 0, \"LibDiamondCut: No selectors in facet to cut\");\n    DiamondStorage storage ds = diamondStorage();\n    require(_facetAddress != address(0), \"LibDiamondCut: Add facet can't be address(0)\");\n    uint96 selectorPosition = uint96(ds.facetFunctionSelectors[_facetAddress].functionSelectors.length);\n    // add new facet address if it does not exist\n    if (selectorPosition == 0) {\n      addFacet(ds, _facetAddress);\n    }\n    for (uint256 selectorIndex; selectorIndex < _functionSelectors.length; selectorIndex++) {\n      bytes4 selector = _functionSelectors[selectorIndex];\n      address oldFacetAddress = ds.selectorToFacetAndPosition[selector].facetAddress;\n      require(oldFacetAddress != _facetAddress, \"LibDiamondCut: Can't replace function with same function\");\n      removeFunction(ds, oldFacetAddress, selector);\n      addFunction(ds, selector, selectorPosition, _facetAddress);\n      selectorPosition++;\n    }\n  }"
}