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digitalmars.D.bugs - [Issue 7334] New: autogenerated CTOR don't check invariant

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=7334

           Summary: autogenerated CTOR don't  check invariant
           Product: D
           Version: D2
          Platform: x86_64
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: devbai mnet-mail.de


--- Comment #0 from Devbai <devbai mnet-mail.de> 2012-01-21 09:07:46 PST ---
Hello

I miss the invariant-check during the execution of 
the auto-generated ctor.

Following programm ....

**************
import std.stdio;

class ClassA 
{
  private int mValue;

  // with the following default-CTOR would be the invariants be checked:
  // this()
  // {}

   property
    {  
      public int value() const 
      { return mValue;
      }

      public void value(int newValue)
      { mValue = newValue;
      }
    }

  invariant()
  { writeln("checking INVARIANT ClassA (mValue: ", mValue, ")");
    assert ( mValue>0, "NOT mValue>0");              
  }
}


public static void main ()
{
  writeln("creating ClassA");
  ClassA aObject = new ClassA();   // may not pass;
                                   // because ClassA has no good CTOR
  writeln("reading value:");
  writeln(aObject.value);
}
**************

compiled with "DMD64 D Compiler v2.057" 
and run will shown this output:


**************
core.exception.AssertError src/bug/bugNoInvariantCheckWithAutoCTOR/TestAppBugNoInvariantCheckWithAutoCTOR.d(24):
NOT mValue>0
----------------
(_d_assert_msg+0x1f) [0x448323]
./(void TestAppBugNoInvariantCheckWithAutoCTOR.ClassA.__invariant()+0x5e)
[0x443f46]
./(void invariant._d_invariant(Object)+0x20) [0x4489d0]
./(const( property int function())
TestAppBugNoInvariantCheckWithAutoCTOR.ClassA.value+0x11) [0x443ea9]
./(_Dmain+0x50) [0x443f98]
./(extern (C) int rt.dmain2.main(int, char**).void runMain()+0x17) [0x44892f]
./(extern (C) int rt.dmain2.main(int, char**).void tryExec(scope void
delegate())+0x2a) [0x4484d6]
./(extern (C) int rt.dmain2.main(int, char**).void runAll()+0x42) [0x448982]
./(extern (C) int rt.dmain2.main(int, char**).void tryExec(scope void
delegate())+0x2a) [0x4484d6]
./(main+0xd3) [0x448467]
/lib/libc.so.6(__libc_start_main+0xfe) [0x7ffe8348ed8e]
----------------
creating ClassA
reading value:
checking INVARIANT ClassA (mValue: 0)
**************

I would expect that the assert should throw an Error during the ctor.

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parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=7334


yebblies <yebblies gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |yebblies gmail.com
         Resolution|                            |DUPLICATE


--- Comment #1 from yebblies <yebblies gmail.com> 2012-01-22 12:21:31 EST ---
*** This issue has been marked as a duplicate of issue 519 ***

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