DynamicMethod NullReferenceException

Posted by Jeff on Stack Overflow See other posts from Stack Overflow or by Jeff
Published on 2010-03-12T17:40:30Z Indexed on 2010/03/12 17:57 UTC
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Filed under:

c#

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dynamicmethod

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msil

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exception

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verify

Can anyone tell me what's wrong with my IL code here?

IL_0000: nop        
IL_0001: ldarg.1    
IL_0002: isinst     MyXmlWriter
IL_0007: stloc.0    
IL_0008: ldloc.0    
IL_0009: ldarg.2    
IL_000a: ldind.ref  
IL_000b: unbox.any  TestEnum
IL_0010: ldfld      Int64 value__/FastSerializer.TestEnum
IL_0015: callvirt   Void WriteValue(Int64)/System.Xml.XmlWriter
IL_001a: nop        
IL_001b: ret

I'm going crazy here, since I've written a test app which does the same thing as above, but in C#, and in reflector the IL code from that looks just like my DynamicMethod's IL code above (except my test C# app uses a TestStruct with a public field instead of the private value field on the enum above, but I have skipVisibility set to true)...

I get a NullReferenceException.

My DynamicMethod's signature is:

public delegate void DynamicWrite(IMyXmlWriter writer, ref object value, MyContract contract);

And I'm definitely not passing in anything null.

Thanks in advance!

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