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POReflection.emit System.InvalidProgramException: Common Language Runtime detected an invalid program
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  1. POReflection.emit System.InvalidProgramException: Common Language Runtime detected an invalid program
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    copied!<p>I'm new to reflection.emit and have been trying to produce the following c# code:</p> <pre><code>public class RepositoryWrapper { public void CallRepositoryMethod(IAddressRepository repository, Address address) { repository.NODE_I_NodeExtendedDetails_Address3(address.NodeId); } } </code></pre> <p>Here is the il Representation of it:</p> <pre><code> IL_0000: nop IL_0001: ldarg.1 IL_0002: ldarg.2 IL_0003: callvirt instance int32 ReflectionServices.Node::get_NodeId() IL_0008: callvirt instance void ReflectionServices.IAddressRepository::NODE_I_NodeExtendedDetails_Address3(int32) IL_000d: nop IL_000e: ret </code></pre> <p>And here is my code used to create it:</p> <pre><code> internal static void Generate(this System.Reflection.Emit.ILGenerator @this, Type target,string method,Type instance) { var methodToCall = target.GetMethod(method); var methodParams = methodToCall.GetParameters(); var instanceProperties = instance.GetProperties(BindingFlags.Public | BindingFlags.Instance); var orderedProperties = (from mp in methodParams join p in instanceProperties on mp.Name.ToLower() equals p.Name.ToLower() select p).ToArray(); //add properties to the string builder //load the object reference onto the stack sothat we can access its methods @this.Emit(OpCodes.Nop); @this.Emit(OpCodes.Ldarg_1); @this.Emit(OpCodes.Ldarg_2); var property = orderedProperties.FirstOrDefault(x =&gt; x.Name == "NodeId"); if (property != null) { var getMethod = property.GetGetMethod(); @this.Emit(getMethod.IsVirtual ? OpCodes.Callvirt : OpCodes.Call, getMethod); } //call method @this.Emit(methodToCall.IsVirtual ? OpCodes.Callvirt : OpCodes.Call, methodToCall); @this.Emit(OpCodes.Nop); //return from function @this.Emit(OpCodes.Ret); } </code></pre> <p>Here is the error I am getting:</p> <pre><code>System.InvalidProgramException: Common Language Runtime detected an invalid program. Result StackTrace: at ReflectionServices.Repository.NODE_I_NodeExtendedDetails3_Address40807399(Repository target, Address ) </code></pre> <p>here is the generated il:</p> <pre><code>nop ldarg.1 ldarg.2 call instance int32 ReflectionServices.Node::get_NodeId() callvirt instance void ReflectionServices.Repository:: NODE_I_NodeExtendedDetails3_Address(int32) nop </code></pre> <p>ret</p> <p>Can anybody see what the issue is i'm stuck?</p> <p>thanks</p> <p>here is my dll and method as requested:</p> <pre><code> public sealed class ReflectionEmitWithDebuggingMethodGenerator { private AssemblyBuilder Assembly { get; set; } private ModuleBuilder Module { get; set; } private AssemblyName Name { get; set; } public ReflectionEmitWithDebuggingMethodGenerator() : base() { this.Name = new AssemblyName() { Name = Guid.NewGuid().ToString("N") }; this.Assembly = AppDomain.CurrentDomain.DefineDynamicAssembly( this.Name, AssemblyBuilderAccess.RunAndSave,@"C:\Users\darren\Documents\Visual Studio 2012\Projects\UnityInjection"); this.AddDebuggingAttribute(this.Assembly); this.Module = this.Assembly.DefineDynamicModule(this.Name.Name + ".dll", true); } public Action&lt;TObject, TInstance&gt; Generate&lt;TObject, TInstance&gt;(Type target, string methodN, Type instanceType) { var type = this.Module.DefineType(target.Namespace + "." + target.Name); var methodName = methodN + target.GetHashCode().ToString(); var method = type.DefineMethod(methodName, MethodAttributes.Static | MethodAttributes.Public, typeof(void), new Type[] { target, instanceType }); method.DefineParameter(1, ParameterAttributes.In, "target"); method.DefineParameter(2, ParameterAttributes.In, "instance"); ILGenerator.Generate(method.GetILGenerator(), target,methodN,instanceType); var createdType = type.CreateType(); var createdMethod = createdType.GetMethod(methodName); return (Action&lt;TObject, TInstance&gt;)Delegate.CreateDelegate(typeof(Action&lt;TObject, TInstance&gt;), createdMethod); } } </code></pre>
 

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