[Mono-bugs] [Bug 571683] New: Runtime compile: location warning flagged as error, and assembly not loaded when lacking 'new' for variable override

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http://bugzilla.novell.com/show_bug.cgi?id=571683

http://bugzilla.novell.com/show_bug.cgi?id=571683#c0


           Summary: Runtime compile: location warning flagged as error,
                    and assembly not loaded when lacking 'new' for
                    variable override
    Classification: Mono
           Product: Mono: Compilers
           Version: 2.4.x
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: C#
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: mtaylor at alionscience.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---


Created an attachment (id=337216)
 --> (http://bugzilla.novell.com/attachment.cgi?id=337216)
Test case, with build script (sh/bash).

User-Agent:       Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.1.3)
Gecko/20090824 Firefox/3.5.3


Bug Details:
   The defect in Mono is this:  
     - When a run-time compile is attempted for a source that the lacks the
       'new' keyword on a variable overriding one in the base class, a CS0108
       warning is raised (correctly, and as it should be).
     - The compiler generates a supplementary CompilerError object to indicate
       the location of the base class variable, but:
       + this supplemental object needs IsWarning set true, but it's false.
       + the compile results CompilerResults.CompiledAssembly is null.

   These symptoms are not true with the Microsoft 3.5 compiler, and I believe
   they were not present in the 1.2.5.1 version of Mono, either.

NOTE:
   I realize that the code example issues warning CS0618, which states: 

     'System.CodeDom.Compiler.CodeDomProvider.CreateCompiler()' is
obsolete[...]

   but a 3rd party DLL which I use utilizes this method, and as long
   as the framework method it available, it must work properly.


Reproducible: Always

Steps to Reproduce:
1. Unpack attached ZIP
2. run "test.sh" script.
Actual Results:  
1. Supplemental (location of base class) CompilerError has IsWarning false.
2. CompilerResults.CompiledAssembly is null


Expected Results:  
1. Supplemental (location of base class) CompilerError should have IsWarning
true.
2. CompilerResults.CompiledAssembly should be the assembly (which exists on the
disk).

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