ts@3.9 incompatible #3
Description
in ts@3.9, there is a type incompatible with interface declaration merge
// application.ts class App extends Preon.Application { test: string } // typings/index.d.ts declare module 'preon' { interface Context { app: Application } } // controller/system.ts export default class System extends Preon.Controller { test(ctx: Preon.Context) { ctx.app.test // TS2339: Property 'test' does not exist on type 'Application'. } }Because the extended class Application is not the same as the original one
For more detail:
microsoft/TypeScript#36696
https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-9.html#intersections-reduced-by-discriminant-properties