create or generate automatically struct

matt Gomm

Hello everyone,

I am actually trying to create or generate automatically struct using the class "TypeBuilder".

I have already found a solution to create an "enum".

Here is the Code that I found as example on the microsoft-page:

using System.Reflection;
using System.Reflection.Emit;
namespace testnamespace
{
class test
{
public void CreateEnum()
{
// Get the current application domain for the current thread.
AppDomain currentDomain = AppDomain.CurrentDomain;
// Create a dynamic assembly in the current application domain,
// and allow it to be executed and saved to disk.
AssemblyName aName = new AssemblyName("TempAssembly");
AssemblyBuilder ab = currentDomain.DefineDynamicAssembly(
aName, AssemblyBuilderAccess.RunAndSave);
// Define a dynamic module in "TempAssembly" assembly. For a single-
// module assembly, the module has the same name as the assembly.
ModuleBuilder mb = ab.DefineDynamicModule(aName.Name, aName.Name + ".dll");
// Define a public enumeration with the name "Elevation" and an
// underlying type of Integer.
EnumBuilder eb = mb.DefineEnum("Elevation", TypeAttributes.Public, typeof(int));
// Define two members, "High" and "Low".
eb.DefineLiteral("Low", 0);
eb.DefineLiteral("High", 1);
// Create the type and save the assembly.
Type finished = eb.CreateType();
ab.Save(aName.Name + ".dll");
foreach(object o in Enum.GetValues(finished) )
{
Console.WriteLine("{0}.{1} = {2}", finished, o, ((int) o));
}
}

How can I do the same procedure to get a struct (NOT A CLASS ;) )

Thank you.

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Mageshwaran R6y ago
Hi,
Please refer the below link, it might helps you
https://www.tutorialsteacher.com/csharp/csharp-struct
matt Gomm7y ago
Thank you very much Jaish Mathews...
I tried with the code you provided and it works.
matt Gomm7y ago
Thank you @Jaish Mathews.

I going to try it right now and will give you a feed back.
Jaish Mathews7y ago
IL level, both struct and class are IL classe.

Did you try below code? Highlighted section is the focus point.

Ref. got from here https://www.pcreview.co.uk/threads/creating-struct-instead-of-class-using-modulebuilder-definetype.3448402/
AssemblyName an = new AssemblyName("Foo");
AssemblyBuilder ab =
AppDomain.CurrentDomain.DefineDynamicAssembly(an,
AssemblyBuilderAccess.Run);
ModuleBuilder mb = ab.DefineDynamicModule("Foo");
TypeBuilder tb = mb.DefineType("Foo", TypeAttributes.Public |
TypeAttributes.Sealed | TypeAttributes.SequentialLayout |
TypeAttributes.Serializable, typeof(ValueType));
Type type = tb.CreateType();
bool isVal = type.IsValueType;