[C# 15-Fundamentals and reference]: Extension indexers

[BillWagner]

.NET 11 Preview

.NET 11 Preview 6

Link to speclet

• Speclet

Link to Pull request

• PR

New behavior

It allows declaring and consuming indexers defined in extension blocks.

static class E
{
  extension(...)
  {
    int this[...] { get ... set ... }
  }
}

Language reference tasks

Update the extension containers language reference material

Everyday C# tasks

None.

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Associated WorkItem - 595286