Question [Editor] Generic field for a specific type without SerializedProperty

I want to display a field for a type T but it's content and value is not linked to any kind of SerializedObject
Basicaly, in anEditorWindow, i have a dropdown that allow the user to select a type (Option can be float, Vector3, vector2, color, or even stuff with custom drawer) and i want it to display a bunch of field for that type bellow. That means a bunch of of FloatField when float is selected, Vector3Field with it's Vector3 and even the custom PropertyDrawer when it's nessesary.

Given a type T, is there a way to create the right visual element to edit that type ?

The behavior is close to what SerializedField does except SerializeField required a SerializedProperty, which doesn't exist in my case.
To be clear, i don't care about the binding, as i need to handle change directly with callback and the value in these field are not really "linked" to anything.

The simple option would be to go with a switch statement that link a type to a specific field but that seems like a mess and might get super complicated to handle PropertyDrawer.

I was hopping for something along the line of InspectorElement.FillDefaultInspector?

Does that exist ?

 

What about the Properties UI Package?
Haven't used it myself but it seems to do what you want. Inspectors for generic non-serialized classes.

https://docs.unity.cn/Packages/com.unity.properties.ui@2.0/manual/index.html

Alternatively you can look into the Code of "EasyButtons" on GitHub. The dev creates procedural ScriptableObjects which are then used to draw an inspector.

Or yea, option 3 would be to have a switch statement which is the most straight-forward way to do it (which means it's easy to understand and fix if there are any errors - and also very customizable).