GraphQL Schema Generation Fails when Import Statement is not Present in the FIle

[ThisaruGuruge]

Description:

Consider a Ballerina package with the following files:

.
├── Ballerina.toml
├── service.bal
├── listener.bal

In the listener.bal file, the following listener is defined:

import ballerina/graphql;

listener graphql:Listener gqlListener = new (9090);

In the service.bal file, the following service is defined:

service on gqlListener {
    resource function get greeting() returns string {
        return "Hello, World";
    }
}

This throws the following compilation error:

ERROR [service.bal:(1:1,1:14320)] undefined annotation 'ServiceConfig'
ERROR [service.bal:(1:1,1:14320)] undefined module 'graphql'
error: compilation contains errors

This is because the code modifier does not add missing import statements in the service file. This should be handled in the code modifier.

[github-actions]

This issue is NOT closed with a proper Reason/ label. Make sure to add proper reason label before closing. Please add or leave a comment with the proper reason label now.

      - Reason/EngineeringMistake - The issue occurred due to a mistake made in the past.
      - Reason/Regression - The issue has introduced a regression.
      - Reason/MultipleComponentInteraction - Issue occured due to interactions in multiple components.
      - Reason/Complex - Issue occurred due to complex scenario.
      - Reason/Invalid - Issue is invalid.
      - Reason/Other - None of the above cases.