GD0103: The exported member is read-only

Rule ID

GD0103

Category

Usage

Fix is breaking or non-breaking

Non-breaking

Enabled by default

Yes

Cause

A read-only member is annotated with the [Export] attribute. Read-only members can’t be exported.

Rule description

Godot doesn’t allow exporting read-only members.

  1. // Read-only fields can't be exported.
  2. [Export]
  3. public readonly int invalidField;
  5. // This field can be exported because it's not declared 'readonly'.
  6. [Export]
  7. public int validField;
  9. // Read-only properties can't be exported.
  10. [Export]
  11. public int InvalidProperty { get; }
  13. // This property can be exported because it has both a getter and a setter.
  14. [Export]
  15. public int ValidProperty { get; set; }

How to fix violations

To fix a violation of this rule for fields, remove the readonly keyword or remove the [Export] attribute.

To fix a violation of this rule for properties, make sure the property declares both a getter and a setter, or remove the [Export] attribute.

When to suppress warnings

Do not suppress a warning from this rule. Read-only members can’t be exported so they will be ignored by Godot, resulting in runtime errors.

User-contributed notes

Please read the User-contributed notes policy before submitting a comment.

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