[Mono-bugs] [Bug 525760] New: gmcs does not mimic csc behavior with regards to struct constructors

[bugzilla_noreply at novell.com]

http://bugzilla.novell.com/show_bug.cgi?id=525760


           Summary: gmcs does not mimic csc behavior with regards to
                    struct constructors
    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: bojanr at brandeis.edu
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---


Created an attachment (id=308259)
 --> (http://bugzilla.novell.com/attachment.cgi?id=308259)
Test code

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1)
Gecko/20090624 Firefox/3.5 (.NET CLR 4.0.20506) FirePHP/0.3

When writing a struct with a parameterized constructor, csc requires that a
call to the base constructor be made to initialize fields (automatic property
fields, etc.). gmcs does not require this, and compiles the code just fine
without the explicit : this () call. The attached sample code demonstrates the
error, and csc gives the following error messages:

#
H:\>csc test.cs
#
Microsoft (R) Visual C# 2008 Compiler version 3.5.30729.1
#
for Microsoft (R) .NET Framework version 3.5
#
Copyright (C) Microsoft Corporation. All rights reserved.
#

#
test.cs(36,5): error CS0188: The 'this' object cannot be used before all of its
#
        fields are assigned to
#
test.cs(33,10): error CS0843: Backing field for automatically implemented
#
        property 'Test.RelationshipUser.ID' must be fully assigned before
#
        control is returned to the caller. Consider calling the default
#
        constructor from a constructor initializer.
#
test.cs(33,10): error CS0843: Backing field for automatically implemented
#
        property 'Test.RelationshipUser.ScreenName' must be fully assigned
#
        before control is returned to the caller. Consider calling the default
#
        constructor from a constructor initializer.
#
test.cs(33,10): error CS0843: Backing field for automatically implemented
#
        property 'Test.RelationshipUser.Following' must be fully assigned
before
#
        control is returned to the caller. Consider calling the default
#
        constructor from a constructor initializer.
#
test.cs(33,10): error CS0843: Backing field for automatically implemented
#
        property 'Test.RelationshipUser.FollowedBy' must be fully assigned
#
        before control is returned to the caller. Consider calling the default
#
        constructor from a constructor initializer.
#
test.cs(33,10): error CS0843: Backing field for automatically implemented
#
        property 'Test.RelationshipUser.NotificationsFrom' must be fully
#
        assigned before control is returned to the caller. Consider calling the
#
        default constructor from a constructor initializer.

Reproducible: Always

Steps to Reproduce:
1. Download attached test code.
2. Try to compile with gmcs.
Actual Results:  
Success!

Expected Results:  
Error similar to csc's.

-- 
Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the QA contact for the bug.
You are the assignee for the bug.