[Mono-bugs] [Bug 406633] New: Overloaded ToString method not found in iterator

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=406633


           Summary: Overloaded ToString method not found in iterator
           Product: Mono: Compilers
           Version: 1.9.0
          Platform: x86
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: C#
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: edlothiol at web.de
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---


Description of Problem:
The following source yields an error when I try to compile it with gmcs:
using System;
using System.Collections.Generic;

public abstract class TestClass
{
        public abstract void ToString(object obj);

        public IEnumerable<object> TestEnumerator()
        {
                ToString(null); // No overload for method `ToString' takes `1'
arguments (CS1501)
                yield break;
        }

        public void Test()
        {
                ToString(null); // No error here
        }
}
Changing the method name to something other than ToString solves the problem.
Also, it doesn't occur in the non-iterator method. (It also doesn't depend on
ToString being abstract or its return type and parameters.)

Steps to reproduce the problem:
1. Try to compile the above code with gmcs (as a library).

Actual Results:
The error "No overload for method `ToString' takes `1' arguments (CS1501)"
occurs in the TestEnumerator method.

Expected Results:
It should compile, as it does with csc.

How often does this happen? 
Everytime.

Additional Information:
Tested with Mono 1.9.1 under Ubuntu and Mono 1.9 under Windows XP.


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