[Issue 4151] New: Add weak references to Phobos/druntime

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=4151

           Summary: Add weak references to Phobos/druntime
           Product: D
           Version: future
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: Phobos
        AssignedTo: nobody at puremagic.com
        ReportedBy: nfxjfg at gmail.com


--- Comment #0 from nfxjfg at gmail.com 2010-05-02 20:55:00 PDT ---
Just that.

The Java API documentation may provide a good starting point as to what weak
references should be able to do:
http://java.sun.com/javase/7/docs/api/java/lang/ref/WeakReference.html

Note that finalizers and the "hidden" rt_attach.../detach... functions are
highly unsafe and hard to get right. As an example what can go wrong if users
try to implement their own weak references, see bug 4150.

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