RuntimeEnvironment.cs

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using System.Diagnostics.CodeAnalysis;
using System.IO;
using System.Reflection;
 
namespace System.Runtime.InteropServices;
 
public static class RuntimeEnvironment
{
    [Obsolete("RuntimeEnvironment members SystemConfigurationFile, GetRuntimeInterfaceAsIntPtr, and GetRuntimeInterfaceAsObject are not supported and throw PlatformNotSupportedException.", DiagnosticId = "SYSLIB0019", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
    public static string SystemConfigurationFile
    {
        get
        {
            throw new PlatformNotSupportedException();
        }
    }
 
    public static bool FromGlobalAccessCache(Assembly a)
    {
        return false;
    }
 
    [UnconditionalSuppressMessage("SingleFile", "IL3000: Avoid accessing Assembly file path when publishing as a single file", Justification = "This call is fine because the code handles the Assembly.Location equals null by calling AppDomain.CurrentDomain.BaseDirectory")]
    public static string GetRuntimeDirectory()
    {
        string path = typeof(object).Assembly.Location;
        if (!Path.IsPathRooted(path))
        {
            path = AppDomain.CurrentDomain.BaseDirectory;
        }
        return Path.GetDirectoryName(path) + Path.DirectorySeparatorChar;
    }
 
    [Obsolete("RuntimeEnvironment members SystemConfigurationFile, GetRuntimeInterfaceAsIntPtr, and GetRuntimeInterfaceAsObject are not supported and throw PlatformNotSupportedException.", DiagnosticId = "SYSLIB0019", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
    public static IntPtr GetRuntimeInterfaceAsIntPtr(Guid clsid, Guid riid)
    {
        throw new PlatformNotSupportedException();
    }
 
    [Obsolete("RuntimeEnvironment members SystemConfigurationFile, GetRuntimeInterfaceAsIntPtr, and GetRuntimeInterfaceAsObject are not supported and throw PlatformNotSupportedException.", DiagnosticId = "SYSLIB0019", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
    public static object GetRuntimeInterfaceAsObject(Guid clsid, Guid riid)
    {
        throw new PlatformNotSupportedException();
    }
 
    public static string GetSystemVersion()
    {
        return typeof(object).Assembly.ImageRuntimeVersion;
    }
}