Imported Upstream version 6.4.0.137

Former-commit-id: 943baa9f16a098c33e129777827f3a9d20da00d6

mcs/class/System.Private.CoreLib/System.Runtime.Loader/AssemblyLoadContext.cs

@@ -0,0 +1,65 @@
+using System.IO;
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Threading;
+
+namespace System.Runtime.Loader
+{
+	partial class AssemblyLoadContext
+	{
+		static IntPtr InitializeAssemblyLoadContext (IntPtr assemblyLoadContext, bool representsTPALoadContext, bool isCollectible)
+		{
+			return IntPtr.Zero;
+		}
+
+		static void PrepareForAssemblyLoadContextRelease (IntPtr nativeAssemblyLoadContext, IntPtr assemblyLoadContextStrong)
+		{
+		}
+
+		static IntPtr InternalLoadUnmanagedDllFromPath (string unmanagedDllPath)
+		{
+			throw new NotImplementedException ();
+		}
+
+		[System.Security.DynamicSecurityMethod] // Methods containing StackCrawlMark local var has to be marked DynamicSecurityMethod
+		Assembly InternalLoadFromPath (string assemblyPath, string nativeImagePath)
+		{
+			StackCrawlMark stackMark = StackCrawlMark.LookForMyCaller;
+
+			assemblyPath = assemblyPath.Replace ('\\', Path.DirectorySeparatorChar);
+			// TODO: Handle nativeImagePath
+			return InternalLoadFile (assemblyPath, ref stackMark);
+		}
+
+		internal Assembly InternalLoad (byte[] arrAssembly, byte[] arrSymbols)
+		{
+			throw new NotImplementedException ();
+		}
+
+		public static Assembly[] GetLoadedAssemblies ()
+		{
+			throw new NotImplementedException ();
+		}
+
+		public static AssemblyLoadContext GetLoadContext (Assembly assembly)
+		{
+			throw new NotImplementedException ();
+		}
+
+		public void SetProfileOptimizationRoot (string directoryPath)
+		{
+		}
+
+		public void StartProfileOptimization (string profile)
+		{
+		}
+
+		[MethodImplAttribute (MethodImplOptions.InternalCall)]
+		extern static Assembly InternalLoadFile (string assemblyFile, ref StackCrawlMark stackMark);
+
+		internal static Assembly DoAssemblyResolve (string name)
+		{
+			return AssemblyResolve (null, new ResolveEventArgs (name));
+		}
+	}
+}