text: /*
   * Backpack - Skyscanner's Design System
   *
   * Copyright 2016-2019 Skyscanner Ltd
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  /* @flow strict */
  
  // eslint-disable-next-line import/prefer-default-export
  export const onClosePropType = (
    props: Object,
    propName: string,
    componentName: string,
  ): ?Error => {
    const onCloseValue = props[propName];
  
    if (
      props.closeOnScrimClick &&
      (!onCloseValue || typeof onCloseValue !== 'function')
    ) {
      return new Error(
        `Invalid prop \`${propName}\` supplied to \`${componentName}\`. There must an onClose handler if closeOnScrimClick is true.`,
      );
    }
  
    return null;
  };
  