[Issue 10623] New: destructor not called for function argument if constructing another argument throws

[d-bugmail at puremagic.com]

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 at puremagic.com
        ReportedBy: andrei at erdani.com


--- Comment #0 from Andrei Alexandrescu <andrei at 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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