Field resolver not working properly

[lemiesz]

Describe the Bug
For some reason when adding @root to a field resolver it ceases to work properly

To Reproduce

I have the following model

_Warning some elements are simplified/redacted both for privacy reasons and to make example easier to illustrate _

@ObjectType()
export class Rule {
    constructor({ , ruleId }: Rule) {
        return {

            ruleId,
        };
    }

    @Field(() => ID)
    ruleId: string;

    ruleTree?: string;
}

and the associated resolver

@Resolver((of) => Rule)
export default class RuleResolver implements ResolverInterface<Rule> {


    @FieldResolver((of) => String)
    public async ruleTree(@Root() root: Rule) {
        return 'Some nonsense';
    }
}

I think attempt to run the following query

{
 parentObject(input:{
   id: "id",
 }) {
   id,
   rootRule {
     ruleId,
     parentLearningPathId,
      ruleTree
   }
}
}

Rule is a model that exists on parentObject.

When I write my field resolver as listed above it just never runs and I get a non-nullable field error.

When I write my field resolver without adding in the @root decorator. Then it properly returns some nonsense as the ruleTrue field.

[lemiesz]

To reiterate this odes not work

@Resolver((of) => Rule)
export default class RuleResolver implements ResolverInterface<Rule> {


    @FieldResolver((of) => String)
    public async ruleTree(@Root() root: Rule) {
        return 'Some nonsense';
    }
}

While this does

@Resolver((of) => Rule)
export default class RuleResolver implements ResolverInterface<Rule> {


    @FieldResolver((of) => String)
    public async ruleTree() {
        return 'Some nonsense';
    }
}

[MichalLytek]

Object type classes can't have parameters in constructor.

[lemiesz]

Hmmm its a common pattern I have been following that has worked fine. However let me try that and see if it fixes this issue

[MichalLytek]

You're also returning an object from the constructor, which breaks this and inheritance chain or methods access.