Imported Upstream version 6.4.0.137

Former-commit-id: 943baa9f16a098c33e129777827f3a9d20da00d6

mcs/class/System.Private.CoreLib/System/Environment.cs

@@ -0,0 +1,86 @@
+using System.Collections;
+using System.Globalization;
+using System.Diagnostics;
+using System.Runtime.CompilerServices;
+using System.Threading;
+using Mono;
+
+namespace System
+{
+	partial class Environment
+	{
+		// This is the version of the corlib-runtime interface (defined in configure.ac)
+		private const string mono_corlib_version = Consts.MonoCorlibVersion;
+
+		public static int CurrentManagedThreadId => Thread.CurrentThread.ManagedThreadId;
+
+		public extern static int ExitCode {
+			[MethodImplAttribute (MethodImplOptions.InternalCall)]
+			get;
+			[MethodImplAttribute (MethodImplOptions.InternalCall)]
+			set;
+		}
+
+		public static extern bool HasShutdownStarted {
+			[MethodImplAttribute (MethodImplOptions.InternalCall)]
+			get;
+		}
+
+		public static extern int ProcessorCount {
+			[MethodImplAttribute (MethodImplOptions.InternalCall)]
+			get;
+		}
+
+		public static string StackTrace {
+			[MethodImpl (MethodImplOptions.NoInlining)] // Prevent inlining from affecting where the stacktrace starts
+			get => new StackTrace (true).ToString (System.Diagnostics.StackTrace.TraceFormat.Normal);
+		}
+
+		public extern static int TickCount {
+			[MethodImplAttribute (MethodImplOptions.InternalCall)]
+			get;
+		}
+
+		[MethodImplAttribute (MethodImplOptions.InternalCall)]
+		public extern static void Exit (int exitCode);
+
+		[MethodImplAttribute (MethodImplOptions.InternalCall)]
+		public extern static string[] GetCommandLineArgs ();
+
+		public static void FailFast (string message)
+		{
+			throw new NotImplementedException ();
+		}
+
+		public static void FailFast(string message, Exception exception)
+		{
+			throw new NotImplementedException ();
+		}
+
+		public static void FailFast (string message, Exception exception, string errorMessage)
+		{
+			throw new NotImplementedException ();
+		}
+	}
+
+#region referencesource dependencies - to be removed
+
+	partial class Environment
+	{
+		internal static string GetResourceString (string key)
+		{
+			return key;
+		}
+
+		internal static string GetResourceString (string key, CultureInfo culture)
+		{
+			return key;
+		}
+
+		internal static string GetResourceString (string key, params object[] values)
+		{
+			return string.Format (CultureInfo.InvariantCulture, key, values);
+		}
+	}
+#endregion
+}