[BUG][GO] unused import "time"

Created by: NickUfer

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Description

The go generator generates unused import "time" statements which makes compilation impossible.

This happens when the model has anyOf, oneOf or allOf statements. import "time" is created when any of the vars of a model is of type time.Time. But this is wrong as model.vars includes all vars from anyOf, oneOf or allOf IF the model itself does not have any properties. This leads to imports which are actually required by referenced structs in other files

Here the nested Files struct causes the parent to add import "time"

openapi-generator version

6.2.0

OpenAPI declaration file content or url

This spec is generated by https://github.com/directus/directus

https://gist.github.com/NickUfer/3c004a00df5ca1420b9949613ddaeb61

Minimal spec:

https://gist.github.com/NickUfer/dcf51a1a86b06b5a9924753e12e6c437

Generation Details

config file:

disallowAdditionalPropertiesIfNotPresent: true
packageName: directusclient
generateInterfaces: true
structPrefix: true
enumClassPrefix: true

cmd:

generate -i /tmp/oas.yaml -g go -o "/tmp/directusclient" -c /tmp/go.yml

Steps to reproduce

Related issues/PRs

https://github.com/OpenAPITools/openapi-generator/pull/13833