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GD0001: Missing partial modifier on declaration of type that derives from GodotObject

Rule ID	GD0001
Category	Usage
Fix is breaking or non-breaking	Non-breaking
Enabled by default	Yes

Cause

A type that derives from GodotObject is not declared partial.

Rule description

Godot source generators add generated code to user-defined types to implement the integration with the engine. Source generators can't add generated code to types that aren't declared partial.

// The source generators can't enhance this type to work with Godot.
public class InvalidNode : Node { }

// The source generators can enhance this type to work with Godot.
public partial class ValidNode { }

How to fix violations

To fix a violation of this rule, add the partial keyword to the type declaration.

When to suppress warnings

Do not suppress a warning from this rule. Types that derive from GodotObject but aren't partial can't be enhanced by the source generators, resulting in unexpected runtime errors.