RF0105: An indexer cannot be exported

For a C# project using Reckfell.NET.Sdk 1.0.0. Fix the first build error first: later messages may be a consequence.

Cause

An indexer requires an argument; an exported property needs a distinct name without an index parameter.

Fix

Export the container itself. Keep the indexer as ordinary unexported C# access.

Failing example

Save the file in a test C# project and run dotnet build. This version intentionally fails to build.

using Reckfell;

namespace DiagnosticExamples.RF0105;

public partial class Example : Entity { [Export] public int this[int index] { get => index; set { } } }

Expected messages: RF0105.

Working version

Replace the failing version with these files; do not keep both declarations in the project.

using Reckfell;

namespace DiagnosticExamples.RF0105;

public partial class Example : Entity
{
    [Export] public Reckfell.Collections.Array<int> Values { get; set; } = new() { 7 };
    public int this[int index] { get => Values[index]; set => Values[index] = value; }
}

Result

Assignment through the indexer changes Values[0]; Values is the exported container.

Related material

All C# diagnostics · C# guide