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AspClassic.Scripting/Hosting/ScriptHost.cs

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+using System;
+using System.Security.Permissions;
+
+namespace AspClassic.Scripting.Hosting;
+
+public class ScriptHost : MarshalByRefObject
+{
+	private ScriptRuntime _runtime;
+
+	public ScriptRuntime Runtime
+	{
+		get
+		{
+			if (_runtime == null)
+			{
+				throw new InvalidOperationException("Host not initialized");
+			}
+			return _runtime;
+		}
+	}
+
+	public virtual PlatformAdaptationLayer PlatformAdaptationLayer => PlatformAdaptationLayer.Default;
+
+	internal void SetRuntime(ScriptRuntime runtime)
+	{
+		_runtime = runtime;
+		RuntimeAttached();
+	}
+
+	protected virtual void RuntimeAttached()
+	{
+	}
+
+	protected internal virtual void EngineCreated(ScriptEngine engine)
+	{
+	}
+
+	[SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.Infrastructure)]
+	public override object InitializeLifetimeService()
+	{
+		return null;
+	}
+}