SelfDecompile.cs

    static string SelfDecompile()
    {
        string result = string.Empty;
        string assemblyFilePath = System.Reflection.Assembly.GetExecutingAssembly().Location;

        AssemblyDefinition assembly = AssemblyDefinition.ReadAssembly(assemblyFilePath);

        // Trouver la classe Program
        TypeDefinition programType = null;
        foreach (TypeDefinition type in assembly.MainModule.Types)
        {
            if (type.Name == "Program")
            {
                programType = type;
                break;
            }
        }

        if (programType != null)
        {
            foreach (MethodDefinition method in programType.Methods)
            {
                result = $"{result}Method: {method.Name}{Environment.NewLine}";
                foreach (Instruction instruction in method.Body.Instructions)
                {
                    result = $"{result}{instruction.OpCode} {instruction.Operand}{Environment.NewLine}";
                }
            }
        }

        return result;
    }