[Mono-bugs] [Bug 667261] New: CS1501 when an optional parameter is followed by a params parameter of the same type

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Wed Jan 26 06:08:45 EST 2011



           Summary: CS1501 when an optional parameter is followed by a
                    params parameter of the same type
    Classification: Mono
           Product: Mono: Compilers
           Version: 2.8.x
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: C#
        AssignedTo: msafar at novell.com
        ReportedBy: microsoftenator at gmail.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---

Created an attachment (id=410467)
 --> (http://bugzilla.novell.com/attachment.cgi?id=410467)
Test Case

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US)
AppleWebKit/534.13 (KHTML, like Gecko) Chrome/9.0.597.83 Safari/534.13

When a method that contains an optional parameter followed immediately by a
params argument of the same type )eg. public void ParamsTest(string s = "",
params string[] args) ) is called with more than a certain number of arguments
(4, in this case), the compiler will fail with error CS1501.

Reproducible: Always

Steps to Reproduce:
1. Create a method with parameters (object ob = null, params object[] args)
2. Call the method, passing at least 5 objects
3. Compile
Actual Results:  
Compiling fails with error CS1501
"error CS1501: No overload for method `MethodName' takes `5' arguments"

Expected Results:  
Should Compile with no errors. Compiles correctly with MS .NET compiler

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