How to add graphql error without exception in mutation?

[XAKEPEHOK]

Hello!
I have a CRM-application with complicated roles system for users. In application business logic i should restrict using some input args in mutations. In this case i want execute mutation, but just ignore some passing arguments values and return mutation result with one or few errors in response.

As i can see, this behavior should not violate graphql spec response errors, but i cant find right way to do it. If i will throw exception in mutation, the result will be contain errors with empty data, but i want have errors and data together in mutation result

I found, that this behavior can be achived by extending and replacing ReferenceExecutor, but i think, that its wron way, or not?

[spawnia]

Lighthouse uses a singleton to collect the errors (https://github.com/nuwave/lighthouse/blob/e655b97782c64fea9a034ba3c99d47b20110f4ec/src/Execution/ErrorPool.php) and then adds them to the final result (https://github.com/nuwave/lighthouse/blob/e655b97782c64fea9a034ba3c99d47b20110f4ec/src/GraphQL.php#L282-L284).