[Mono-bugs] [Bug 545584] New: new <type> {...} constructors works wrong with assignments in some cases

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Thu Oct 8 18:46:31 EDT 2009


http://bugzilla.novell.com/show_bug.cgi?id=545584


           Summary: new <type> {...} constructors works wrong with
                    assignments in some cases
    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: rush.william at gmail.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---


Created an attachment (id=321742)
 --> (http://bugzilla.novell.com/attachment.cgi?id=321742)
error demontration

User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.3)
Gecko/20090920 Gentoo Firefox/3.5.3

in constructions like:
 somevar = new Someclass { SomeField = somevar }
gmcs performs assignment new instance before SomeField is assigned to old
value. As the result SomeField is assigned to newly created instance, not to
old value of somevar. 

See example attached.

Reproducible: Always

Steps to Reproduce:
1. Download the example
2. gmsc test.cs
3. mono test.exe
Actual Results:  
for mono:
  Buggy new T {...}: Yes


Expected Results:  
for MS csc:
  Buggy new T {...}: No

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