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GD0105: The exported property is an indexer

Rule ID	GD0105
Category	Usage
Fix is breaking or non-breaking	Non-breaking
Enabled by default	Yes

Cause

An indexer is annotated with the [Export] attribute. Indexers can't be exported.

Rule description

Godot doesn't allow exporting indexer properties.

private int[] _backingField;

// Indexers can't be exported.
[Export]
public int this[int index]
{
    get => _backingField[index];
    set => _backingField[index] = value;
}

How to fix violations

To fix a violation of this rule, remove the [Export] attribute.

When to suppress warnings

Do not suppress a warning from this rule. Indexers can't be exported so they will be ignored by Godot, resulting in runtime errors.