frontend/node_modules/@mui/utils/legacy/resolveProps/resolveProps.js

import _extends from "@babel/runtime/helpers/esm/extends";
/**
 * Add keys, values of `defaultProps` that does not exist in `props`
 * @param {object} defaultProps
 * @param {object} props
 * @returns {object} resolved props
 */
export default function resolveProps(defaultProps, props) {
  var output = _extends({}, props);
  Object.keys(defaultProps).forEach(function (propName) {
    if (propName.toString().match(/^(components|slots)$/)) {
      output[propName] = _extends({}, defaultProps[propName], output[propName]);
    } else if (propName.toString().match(/^(componentsProps|slotProps)$/)) {
      var defaultSlotProps = defaultProps[propName] || {};
      var slotProps = props[propName];
      output[propName] = {};
      if (!slotProps || !Object.keys(slotProps)) {
        // Reduce the iteration if the slot props is empty
        output[propName] = defaultSlotProps;
      } else if (!defaultSlotProps || !Object.keys(defaultSlotProps)) {
        // Reduce the iteration if the default slot props is empty
        output[propName] = slotProps;
      } else {
        output[propName] = _extends({}, slotProps);
        Object.keys(defaultSlotProps).forEach(function (slotPropName) {
          output[propName][slotPropName] = resolveProps(defaultSlotProps[slotPropName], slotProps[slotPropName]);
        });
      }
    } else if (output[propName] === undefined) {
      output[propName] = defaultProps[propName];
    }
  });
  return output;
}