TypeError: Cannot read property 'filter' of undefined

[unzico]

Hi there,

thanks for your work on this project! I'm currently using it in a Storybook project and have encountered the following error.

Stack trace

ERROR in ./src/components/Checkbox/utils/fireCallbackOnEnterKey.ts
Module build failed (from D:/01 Privat/Programmieren/club of code/clubofcode-app/node_modules/react-docgen-typescript-loader/dist/index.js):
TypeError: Cannot read property 'filter' of undefined
    at getTextValueOfClassMember (D:\01 Privat\Programmieren\club of code\clubofcode-app\node_modules\react-docgen-typescript\lib\parser.js:571:10)
    at computeComponentName (D:\01 Privat\Programmieren\club of code\clubofcode-app\node_modules\react-docgen-typescript\lib\parser.js:614:9)
    at Parser.getComponentInfo (D:\01 Privat\Programmieren\club of code\clubofcode-app\node_modules\react-docgen-typescript\lib\parser.js:124:52)
    at D:\01 Privat\Programmieren\club of code\clubofcode-app\node_modules\react-docgen-typescript\lib\parser.js:701:27
    at Array.map (<anonymous>)
    at D:\01 Privat\Programmieren\club of code\clubofcode-app\node_modules\react-docgen-typescript\lib\parser.js:700:14
    at Array.reduce (<anonymous>)
    at parseWithProgramProvider (D:\01 Privat\Programmieren\club of code\clubofcode-app\node_modules\react-docgen-typescript\lib\parser.js:693:10)
    at Object.parseWithProgramProvider (D:\01 Privat\Programmieren\club of code\clubofcode-app\node_modules\react-docgen-typescript\lib\parser.js:74:2
0)
    at processResource (D:\01 Privat\Programmieren\club of code\clubofcode-app\node_modules\react-docgen-typescript-loader\dist\loader.js:113:32)
    at Object.loader (D:\01 Privat\Programmieren\club of code\clubofcode-app\node_modules\react-docgen-typescript-loader\dist\loader.js:51:25)
 @ ./src/components/Checkbox/Checkbox.tsx 4:0-72 8:139-161
 @ ./src/components/Checkbox/stories/Checkbox.stories.tsx
 @ ./src/components sync \.stories\.tsx?$
 @ ./.storybook/config.js
 @ multi ./node_modules/@storybook/core/dist/server/common/polyfills.js ./node_modules/@storybook/core/dist/server/preview/globals.js ./.storybook/con
fig.js D:/01 Privat/Programmieren/club of code/clubofcode-app/node_modules/webpack-hot-middleware/client.js?reload=true&quiet=true

I was able to track it down to the following line

react-docgen-typescript/src/parser.ts

Line 859 in 1bb2d09

const [textValue] = classDeclaration.members

The issue is resolved when changing

const [textValue] = classDeclaration.members.filter([...]

to

const [textValue] = classDeclaration.members && classDeclaration.members.filter([...]

Additional notice
The function (namely fireCallbackOnEnterKey) producing this error is a simple utility function used inside a React functional component.

This issue may be related to the following issues
strothj/react-docgen-typescript-loader#11
#191
#195