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ServerBase/Meta/MetaValidation/MethodInfoExtentions.cs

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+using System.Linq.Expressions;
+using System.Reflection;
+
+
+namespace ServerBase;
+
+public static class MethodInfoExtentions
+{
+    public static TDelegate compile<TDelegate>(MethodInfo mi)
+    {
+        ParameterExpression? @this = null;
+        if (!mi.IsStatic)
+        {
+            @this = Expression.Parameter(mi.DeclaringType!, "this");
+        }
+
+        var parameters = new List<ParameterExpression>();
+        if (@this != null)
+        {
+            parameters.Add(@this);
+        }
+
+        foreach (var parameter in mi.GetParameters())
+        {
+            parameters.Add(Expression.Parameter(parameter.ParameterType, parameter.Name));
+        }
+
+        Expression? call = null;
+        if (@this != null)
+        {
+            call = Expression.Call(@this, mi, parameters.Skip(1));
+        }
+        else
+        {
+            call = Expression.Call(mi, parameters);
+        }
+
+        return Expression.Lambda<TDelegate>(call, parameters).Compile();
+    }
+}
+