@interaction/eagle/es/internal/_dispatchable.js

JavaScript library

import _isArray from "./_isArray.js";
import _isTransformer from "./_isTransformer.js";
export default function _dispatchable(methodNames, xf, fn) {
  return function () {
    if (arguments.length === 0) {
      return fn();
    }

    var args = Array.prototype.slice.call(arguments, 0);
    var obj = args.pop();

    if (!_isArray()) {
      var idx = 0;

      while (idx < methodNames.length) {
        if (typeof obj[methodNames[idx]] === 'function') {
          return obj[methodNames[idx]].apply(obj, args);
        }

        idx += 1;
      }

      if (_isTransformer(obj)) {
        var transducer = xf.apply(null, args);
        return transducer;
      }
    }

    return fn.apply(this, arguments);
  };
}