// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

namespace System.Runtime.CompilerServices
{
    public static class RuntimeFeature
    {
        /// <summary>
        /// Name of the Portable PDB feature.
        /// </summary>
        public const string PortablePdb = nameof(PortablePdb);

#if FEATURE_DEFAULT_INTERFACES
        /// <summary>
        /// Indicates that this version of runtime supports default interface method implementations.
        /// </summary>
        public const string DefaultImplementationsOfInterfaces = nameof(DefaultImplementationsOfInterfaces);
#endif

        /// <summary>
        /// Checks whether a certain feature is supported by the Runtime.
        /// </summary>
        public static bool IsSupported(string feature)
        {
            switch (feature)
            {
                case PortablePdb:
#if FEATURE_DEFAULT_INTERFACES
                case DefaultImplementationsOfInterfaces:
#endif
                    return true;
            }

            return false;
        }
    }
}
