failed to generate specification in mixin abstract classes

[TechQuery]

Expect

@epiphone I want to reduce the Source-code Size, so I wrote a Controller Abstract Class mixin:

import { Constructor } from 'web-utility';
import { Post, Body } from 'routing-controllers';
import { ResponseSchema } from 'routing-controllers-openapi';

export function Controller<M>(Model: Constructor<M>) {
    abstract class BaseController {
        @Post()
        @ResponseSchema(Model)
        // @ts-ignore
        createOne(@Body() data: Model) {
            // ORM logic
        }
    }
    return BaseController;
}

Actual

But it thrown an error at:

routing-controllers-openapi/src/generateSpec.ts

Lines 13 to 21 in 7c5bc3e

	/** Return full Express path of given route. */
	export function getFullExpressPath(route: IRoute): string {
	const { action, controller, options } = route
	return (
	(options.routePrefix || '') +
	(controller.route || '') +
	(action.route || '')
	)
	}

TypeError: Cannot read property 'route' of undefined
    at getFullExpressPath (D:\Work\idea2app\REST-Node-ts\node_modules\.pnpm\[email protected][email protected]\node_modules\routing-controllers-openapi\src\generateSpec.ts:18:17)
    at getFullPath (D:\Work\idea2app\REST-Node-ts\node_modules\.pnpm\[email protected][email protected]\node_modules\routing-controllers-openapi\src\generateSpec.ts:27:31)
    at D:\Work\idea2app\REST-Node-ts\node_modules\.pnpm\[email protected][email protected]\node_modules\routing-controllers-openapi\src\generateSpec.ts:77:6
    at Array.map (<anonymous>)
    at getPaths (D:\Work\idea2app\REST-Node-ts\node_modules\.pnpm\[email protected][email protected]\node_modules\routing-controllers-openapi\src\generateSpec.ts:76:29)
    at Object.getSpec (D:\Work\idea2app\REST-Node-ts\node_modules\.pnpm\[email protected][email protected]\node_modules\routing-controllers-openapi\src\generateSpec.ts:291:12)
    at routingControllersToSpec (D:\Work\idea2app\REST-Node-ts\node_modules\.pnpm\[email protected][email protected]\node_modules\routing-controllers-openapi\src\index.ts:28:16)
    at createSwagger (D:\Work\idea2app\REST-Node-ts\node_modules\.pnpm\[email protected]\node_modules\koagger\dist\Swagger.js:16:77)
    at createAPI (D:\Work\idea2app\REST-Node-ts\node_modules\.pnpm\[email protected]\node_modules\koagger\dist\index.js:10:44) 
    at Object.<anonymous> (D:\Work\idea2app\REST-Node-ts\source\controller\index.ts:10:53)

Reproduce code

idea2app/REST-Node-ts#1

Environment

Software	Version(s)
Node	14.19.1
PNPM	7.11.0
Operating System	Windows 10 Pro 21H2