Not able to make a Thenable Class

[shiny]

Package version

@adonisjs/fold@10.0.1

Describe the bug

This is a simple Thenable Class Example

class Database {
    where() {
        return this
    }
    and() {
        return this
    }
    limit() {
        return this
    }
    then(onFulfilled: (result: string) => any) {
        onFulfilled('my example result')
    }
}

What I expect is

const db = await app.container.make(Database)
const result = await db.where().and().limit()
result === 'my example result''

But the result is db === 'my example result', not a instance of Database.
The thenable class is useful for graceful chain methods

Reproduction repo

https://github.com/shiny/reproduce-thenable-class-issue/blob/main/tests/unit/example.spec.ts

[thetutlage]

That's expected because that's how await works under the hood. It will resolve all the promises.

I am not sure there any simple way to work around this. Lemme know if you have anything in mind.

[shiny]

Oh I get it now, thank you for your patience to help.