Function bindAutoBindMethod

examples/simple/react.js:4909–4941

* Binds a method to the component. * * @param {object} component Component whose method is going to be bound. * @param {function} method Method to be bound. * @return {function} The bound method.

(component, method)

 * @return {function} The bound method.
 */
function bindAutoBindMethod(component, method) {
  var boundMethod = method.bind(component);
  if ("development" !== 'production') {
    boundMethod.__reactBoundContext = component;
    boundMethod.__reactBoundMethod = method;
    boundMethod.__reactBoundArguments = null;
    var componentName = component.constructor.displayName;
    var _bind = boundMethod.bind;
    /* eslint-disable block-scoped-var, no-undef */
    boundMethod.bind = function (newThis) {
      for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
        args[_key - 1] = arguments[_key];
      }

      // User is trying to bind() an autobound method; we effectively will
      // ignore the value of "this" that the user is trying to use, so
      // let's warn.
      if (newThis !== component && newThis !== null) {
        "development" !== 'production' ? warning(false, 'bind(): React component methods may only be bound to the ' + 'component instance. See %s', componentName) : undefined;
      } else if (!args.length) {
        "development" !== 'production' ? warning(false, 'bind(): You are binding a component method to the component. ' + 'React does this for you automatically in a high-performance ' + 'way, so you can safely remove this call. See %s', componentName) : undefined;
        return boundMethod;
      }
      var reboundMethod = _bind.apply(boundMethod, arguments);
      reboundMethod.__reactBoundContext = component;
      reboundMethod.__reactBoundMethod = method;
      reboundMethod.__reactBoundArguments = args;
      return reboundMethod;
      /* eslint-enable */
    };
  }
  return boundMethod;
}

/**
 * Binds all auto-bound methods in a component.