Function checkClassInstance

dash/deps/react-dom@18.3.1.js:18031–18152

(workInProgress, ctor, newProps)

  }

  function checkClassInstance(workInProgress, ctor, newProps) {
    var instance = workInProgress.stateNode;

    {
      var name = getComponentNameFromType(ctor) || 'Component';
      var renderPresent = instance.render;

      if (!renderPresent) {
        if (ctor.prototype && typeof ctor.prototype.render === 'function') {
          error('%s(...): No `render` method found on the returned component ' + 'instance: did you accidentally return an object from the constructor?', name);
        } else {
          error('%s(...): No `render` method found on the returned component ' + 'instance: you may have forgotten to define `render`.', name);
        }
      }

      if (instance.getInitialState && !instance.getInitialState.isReactClassApproved && !instance.state) {
        error('getInitialState was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Did you mean to define a state property instead?', name);
      }

      if (instance.getDefaultProps && !instance.getDefaultProps.isReactClassApproved) {
        error('getDefaultProps was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Use a static property to define defaultProps instead.', name);
      }

      if (instance.propTypes) {
        error('propTypes was defined as an instance property on %s. Use a static ' + 'property to define propTypes instead.', name);
      }

      if (instance.contextType) {
        error('contextType was defined as an instance property on %s. Use a static ' + 'property to define contextType instead.', name);
      }

      {
        if (ctor.childContextTypes && !didWarnAboutLegacyContext$1.has(ctor) && // Strict Mode has its own warning for legacy context, so we can skip
        // this one.
        (workInProgress.mode & StrictLegacyMode) === NoMode) {
          didWarnAboutLegacyContext$1.add(ctor);

          error('%s uses the legacy childContextTypes API which is no longer ' + 'supported and will be removed in the next major release. Use ' + 'React.createContext() instead\n\n.' + 'Learn more about this warning here: https://reactjs.org/link/legacy-context', name);
        }

        if (ctor.contextTypes && !didWarnAboutLegacyContext$1.has(ctor) && // Strict Mode has its own warning for legacy context, so we can skip
        // this one.
        (workInProgress.mode & StrictLegacyMode) === NoMode) {
          didWarnAboutLegacyContext$1.add(ctor);

          error('%s uses the legacy contextTypes API which is no longer supported ' + 'and will be removed in the next major release. Use ' + 'React.createContext() with static contextType instead.\n\n' + 'Learn more about this warning here: https://reactjs.org/link/legacy-context', name);
        }

        if (instance.contextTypes) {
          error('contextTypes was defined as an instance property on %s. Use a static ' + 'property to define contextTypes instead.', name);
        }

        if (ctor.contextType && ctor.contextTypes && !didWarnAboutContextTypeAndContextTypes.has(ctor)) {
          didWarnAboutContextTypeAndContextTypes.add(ctor);

          error('%s declares both contextTypes and contextType static properties. ' + 'The legacy contextTypes property will be ignored.', name);
        }
      }