How Many Types are loaded for Hello World - I know the answer (it's 42) - Site Home

Consider the following super simple C# code

namespace SmartDeviceProject1
{
    class Program
    {
        static void Main(string[] args)
        {
            System.Console.WriteLine("Hello");
        }
    }
}

Can you guess how many managed Type gets loaded to run this? I was doing some profiling the .NET Compact Framework loader (for entirely unrelated reason) and was surprised by the list that got dumped. 87 177 types**, never could've guessed that...

System.Object
System.ValueType
System.Enum
System.Void
System.Boolean
System.Char
System.SByte
System.Byte
System.Int16
System.UInt16
System.Int32
System.UInt32
System.Int64
System.UInt64
System.Single
System.Double
System.String
System.Type
System.Reflection.MemberInfo
System.RuntimeType
System.Array
System.IntPtr
System.UIntPtr
System.Text.StringBuilder
System.Delegate
System.MulticastDelegate
System.DateTime
System.Exception
System.MarshalByRefObject
System.AppDomain
System.__ComObject
System.Decimal
System.SZArrayHelper
System.Collections.IEnumerable
System.Collections.IEnumerator
System.Nullable`1
System.SystemException
System.Security.VerificationException
System.Runtime.InteropServices.CurrencyWrapper
System.Runtime.InteropServices.UnknownWrapper
System.Runtime.InteropServices.DispatchWrapper
System.Runtime.InteropServices.ErrorWrapper
System.Runtime.InteropServices.CustomMarshalerHelper
System.Attribute
System.Runtime.InteropServices.InterfaceTypeAttribute
System.Runtime.InteropServices.GuidAttribute
System.Runtime.InteropServices.ComVisibleAttribute
System.Runtime.InteropServices.ComEventInterfaceAttribute
System.Runtime.InteropServices.ComSourceInterfacesAttribute
System.Runtime.InteropServices.LCIDConversionAttribute
System.Runtime.InteropServices.ComDefaultInterfaceAttribute
System.Runtime.InteropServices.DispIdAttribute
System.CorPubObject
System.Char[]
System.Collections.Hashtable
System.Reflection.BindingFlags
System.Reflection.MemberFilter
System.Reflection.Binder
System.Type[]
System.Reflection.TypeAttributes
System.Void*
System.Int32[]
System.IntPtr[]
System.Collections.IDictionary
System.UnhandledExceptionEventHandler
System.AppDomainManager
System.Version
System.Runtime.InteropServices.ComInterfaceType
System.Collections.ICollection
System.Collections.IEqualityComparer
System.AppDomainManagerInitializationOptions
System.ArithmeticException
System.ArgumentException
System.MissingMemberException
System.MemberAccessException
System.AppDomainSetup
System.Runtime.InteropServices.Marshal
System.PInvoke.EE
System.Reflection.AssemblyName
System.Byte[]
System.Globalization.CultureInfo
System.Reflection.Assembly
System.Configuration.Assemblies.AssemblyHashAlgorithm
System.Configuration.Assemblies.AssemblyVersionCompatibility
System.Reflection.AssemblyNameFlags
System.Globalization.CultureTableRecord
System.Globalization.CompareInfo
System.Globalization.TextInfo
System.Globalization.NumberFormatInfo
System.Globalization.DateTimeFormatInfo
System.Globalization.Calendar
System.Globalization.BaseInfoTable
System.Globalization.CultureTable
System.Globalization.CultureTableData
System.Globalization.CultureTableData*
System.UInt16*
System.Globalization.NumberStyles
System.Globalization.DateTimeStyles
System.String[]
System.Globalization.DateTimeFormatFlags
System.Globalization.TokenHashValue
System.Globalization.TokenHashValue[]
System.Byte*
System.Globalization.CultureTableHeader
System.Globalization.CultureTableHeader*
System.Globalization.CultureNameOffsetItem
System.Globalization.CultureNameOffsetItem*
System.Globalization.RegionNameOffsetItem
System.Globalization.RegionNameOffsetItem*
System.Globalization.IDOffsetItem
System.Globalization.IDOffsetItem*
System.TokenType
System.Int32&
System.IO.TextReader
System.IO.TextWriter
System.IFormatProvider
System.Console
System.Char&
System.Char*
System.ArgumentNullException
System.PInvoke.NSLIntl
System.ArgumentOutOfRangeException
System.RuntimeTypeHandle
System.NotSupportedException
System.PlatformNotSupportedException
System.String&
System.TypeLoadException
System.Globalization.EndianessHeader
System.Globalization.EndianessHeader*
System.Globalization.GlobalizationAssembly
System.BCLDebug
System.PInvoke.TableData
System.InvalidProgramException
System.Collections.HashHelpers
System.Globalization.CultureTableItem
System.UInt32&
System.Security.CodeAccessSecurityEngine
System.LocalDataStoreMgr
System.Threading.ExecutionContext
System.LocalDataStore
System.Collections.ArrayList
System.Threading.SynchronizationContext
System.Runtime.Remoting.Messaging.LogicalCallContext
System.Runtime.Remoting.Messaging.IllogicalCallContext
System.Threading.Thread
System.Object[]
System.Collections.Generic.Dictionary`2
System.Runtime.Remoting.Messaging.CallContextRemotingData
System.Runtime.Remoting.Messaging.CallContextSecurityData
System.Collections.Generic.IEqualityComparer`1
System.InvalidOperationException
System.Globalization.CultureTableRecord[]
System.Threading.Monitor
System.Globalization.CultureTableRecord&
System.Object&
System.Threading.Interlocked
System.Runtime.CompilerServices.RuntimeHelpers
System.RuntimeFieldHandle
System.PInvoke.PAL
System.IndexOutOfRangeException
System.IntPtr&
System.Buffer
System.NullReferenceException
System.OutOfMemoryException
System.InvalidCastException
System.OverflowException
System.DivideByZeroException
System.ArrayTypeMismatchException
System.MissingMethodException
System.FormatException
System.RankException
System.Security.SecurityException
System.StackOverflowException
System.Threading.ThreadAbortException
System.Threading.ThreadTerminateException
System.MethodAccessException
SmartDeviceProject1.Program

**This is for the compact framework CLR. Your mileage will vary if you run the same on the desktop CLR.