net10.0 
namespace Microsoft.CodeAnalysis
{
    public interface ITypeSymbol : INamespaceOrTypeSymbol, ISymbol, IEquatable<ISymbol?>
    {
        [Obsolete("This API will be removed in the future. Use INamedTypeSymbol.IsExtension instead.")]
        bool IsExtension { get; }
    }
}
nuget.org
0.0 %
Reference this API
.NET
8.09.010.0
Information specific to net10.0
Assembly

Microsoft.CodeAnalysis , Version=5.0.0.0, PublicKeyToken=31bf3856ad364e35

Referencing

Your project needs a package reference to Microsoft.CodeAnalysis.Common.

Package Microsoft.CodeAnalysis.Common (5.0.0) net9.0
Obsolete This API will be removed in the future. Use INamedTypeSymbol.IsExtension instead.
Platform Restrictions

The property getter is supported on all platforms.

  • Built-in API
  • Package-provided API