[Mono-list] Extension method not found

[Krogerma at aol.com]

Hello, Mr. Prawdi, hello list.
 
We have the same problem. We are side-stepping the assembly right now,  
because we have others to get running under Mono. I had planned to boil it down 
 to a small piece of code and submit this to the list.
 
Same deal as yours - a whole bunch of extension methods work fine, but  
there's just one that the linker can't seem to find.
 
Works fine on Windows-Mono, but fails on Linux-Mono (Suse). Windows-Mono is 
 built with MonoDevelop. Reflector reveals that the code looks fine.
 
I'll be tracking progress on this eagerly. I'll report anything I find out  
when I get back to look at this. Please keep me advised if you find out  
anything.
 
Cheers!
 
Kurt Matis
Troy, NY
 
 
 
 
 
In a message dated 8/31/2010 11:39:51 P.M. Eastern Daylight Time,  
blask_prawdi at yahoo.ca writes:


Hello,

I am having a weird problem with Mono. I have a  solution made of 2 projects
A and B, targeting Mono/.NET 3.5. In project A,  I have a class called
BinaryExtensions which define a bunch of extensions  methods for
System.IO.BinaryReader and BinaryWriter. Both projects A and B  use some of
these extensions methods; project B references project A for  that reason.
For some reason, project B fails to find one of the extensions  methods when
compiling.

The whole thing works perfectly fine under  VS2010. Using Monodevelop 2.4
under Ubuntu 10.04 to compile my code,  however, I get CS1061 (Type
'System.IO.BinayReader' does not contain a  definition for funcX and no
extension method could be found). The thing is,  the method in question is
used successfully by project A. Project B also  successfully uses other
extensions methods from BinaryExtensions. But it  fails to find one
particular function. Here is the code for that  function:

public static string  ReadNullTerminatedASCIIString(this BinaryReader
binaryReader, int count)  {
var rawBytes =  binaryReader.ReadBytes(count);
rawBytes = rawBytes.TakeWhile(b => b != 0x00).ToArray();
var chars =  Encoding.ASCII.GetChars(rawBytes);
return new string(chars);
}

Again, this function is used by projectA and projectA compiles fine.  Also,
other extension methods of that class are used by projectB and  generate no
errors.

Also, when I use the assembly browser to check  projectA, all extensions
methods decompile fine except for the method in  question. I get:

"Decompilation  failed:

System.NotImplementedException: IL_0011: ldftn  bool
AssetImporter.BinaryExtensions::m__0(System.Byte)
at  Cecil.Decompiler.Cil.BaseInstructionVisitor.OnLdftn
(Mono.Cecil.Cil.Instruction  instruction) [0x00000] in :0 
at  Cecil.Decompiler.Cil.InstructionDispatcher.Dispatch
(Mono.Cecil.Cil.Instruction  instruction, IInstructionVisitor visitor)
[0x00000] in :0 
at  Cecil.Decompiler.Cil.BaseInstructionVisitor.Visit
(Mono.Cecil.Cil.Instruction  instruction) [0x00000] in :0 
at  Cecil.Decompiler.StatementDecompiler.ProcessExpressionBlock
(Cecil.Decompiler.Cil.InstructionBlock  block, Boolean skip_first) [0x00000]
in :0 
at  Cecil.Decompiler.StatementDecompiler.ProcessExpressionBlock
(Cecil.Decompiler.Cil.InstructionBlock  block) [0x00000] in :0 
at  Cecil.Decompiler.StatementDecompiler.PushConditionExpression
(Mono.Cecil.Cil.Instruction  instruction) [0x00000] in :0 
at  Cecil.Decompiler.StatementDecompiler.TryProcessExpression
(Mono.Cecil.Cil.Instruction  instruction) [0x00000] in :0 
at  Cecil.Decompiler.StatementDecompiler.ProcessInstruction
(Mono.Cecil.Cil.Instruction  instruction) [0x00000] in :0 
at  Cecil.Decompiler.StatementDecompiler.ProcessInstructions
(Cecil.Decompiler.Cil.InstructionBlock  block) [0x00000] in :0 
at  Cecil.Decompiler.StatementDecompiler.ProcessBlock
(Cecil.Decompiler.Cil.InstructionBlock  block) [0x00000] in :0 
at  Cecil.Decompiler.StatementDecompiler.ProcessBlocks () [0x00000] in :0  
at Cecil.Decompiler.StatementDecompiler.Run () [0x00000] in :0  
at  Cecil.Decompiler.StatementDecompiler.Process
(Cecil.Decompiler.DecompilationContext  context,
Cecil.Decompiler.Ast.BlockStatement body) [0x00000] in :0  
at Cecil.Decompiler.DecompilationPipeline.Run  (Mono.Cecil.Cil.MethodBody
body) [0x00000] in :0 
at  Cecil.Decompiler.Extensions.RunPipeline
(Cecil.Decompiler.DecompilationPipeline  pipeline, Mono.Cecil.Cil.MethodBody
body) [0x00000] in :0 
at  Cecil.Decompiler.Extensions.Decompile (Mono.Cecil.Cil.MethodBody  body,
ILanguage language) [0x00000] in :0 
at  Cecil.Decompiler.Languages.CSharpWriter.Write
(Mono.Cecil.MethodDefinition  method) [0x00000] in :0 
at  MonoDevelop.AssemblyBrowser.DomMethodNodeBuilder.Decompile
(MonoDevelop.Projects.Dom.DomCecilMethod  method, Boolean markup) [0x00000]
in :0 

What's going on?
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