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GD0401: The class must derive from Redot.GodotObject or a derived class¶


Rule ID	GD0401
Category	Usage
Fix is breaking or non-breaking	Breaking - If changing the inheritance chain Non-breaking - If removing the `[GlobalClass]` attribute
Enabled by default	Yes

Cause¶

A type annotated with the [GlobalClass] attribute does not derive from GodotObject.

Rule description¶

The [GlobalClass] has no effect for types that don't derive from GodotObject. Every global class must ultimately derive from GodotObject so it can be marshalled.

// This type is not registered as a global class because it doesn't derive from RedotObject.
[GlobalClass]
class SomeType { }

// This type is a global class because it derives from Redot.Node
// which ultimately derives from RedotObject.
[GlobalClass]
class MyNode : Node { }

// This type is a global class because it derives from Redot.Resource
// which ultimately derives from RedotObject.
[GlobalClass]
class MyResource : Resource { }

How to fix violations¶

To fix a violation of this rule, change the type to derive from GodotObject or remove the [GlobalClass] attribute.

When to suppress warnings¶

Do not suppress a warning from this rule. Adding the [GlobalClass] to a type that doesn't derive from GodotObject is an easy mistake to make and this warning helps users realize that it may result in unexpected errors.