Thread overview
[Issue 10623] New: destructor not called for function argument if constructing another argument throws
Jul 12, 2013
Maxim Fomin
July 12, 2013
http://d.puremagic.com/issues/show_bug.cgi?id=10623

           Summary: destructor not called for function argument if
                    constructing another argument throws
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: andrei@erdani.com


--- Comment #0 from Andrei Alexandrescu <andrei@erdani.com> 2013-07-12 08:52:50 PDT ---
Consider:

import std.stdio;

struct S1 {
    this(int) { writeln("constructed"); }
    ~this() { writeln("destroyed"); }
}
struct S2 { this(int) { throw new Exception("a"); } }

void fun(S1, S2, S1) {}

void main()
{
    fun(S1(2), S2(2), S1(2));
}

Running this code will create an object of type S1 that is never destroyed. This is somewhat related to http://d.puremagic.com/issues/show_bug.cgi?id=9704, just there's no postblit.

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July 12, 2013
http://d.puremagic.com/issues/show_bug.cgi?id=10623


Maxim Fomin <maxim@maxim-fomin.ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |maxim@maxim-fomin.ru


--- Comment #1 from Maxim Fomin <maxim@maxim-fomin.ru> 2013-07-12 09:08:36 PDT ---
I think this can be marked as a dup because it is a particular situation of essentially the same case described in issue 9704.

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monarchdodra@gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |monarchdodra@gmail.com
           See Also|                            |http://d.puremagic.com/issu
                   |                            |es/show_bug.cgi?id=9704
         Resolution|                            |DUPLICATE


--- Comment #2 from monarchdodra@gmail.com 2013-07-12 11:05:06 PDT ---
(In reply to comment #1)
> I think this can be marked as a dup because it is a particular situation of essentially the same case described in issue 9704.

This indeed a more generically worded description, but essentially, the same thing.

Also, (since links never hurt), this issue was also discussed recently in learn: http://forum.dlang.org/thread/20130628005448.00000969@unknown?page=2

*** This issue has been marked as a duplicate of issue 9704 ***

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