Potential bug in becomeForward:, need help!

Jon Hylands jon at huv.com
Sun May 19 02:41:34 UTC 2002


On Fri, 17 May 2002 17:31:14 -0600, Frank Sergeant
<frank at canyon-medical.com> wrote:

> An alternate strategy would be to
> continue to use just the proxy but to add an instance variable to the
> proxy which would be nil when the real object was not materialized and
> would point to the real object when it was materialized. 

This works, but it is better to have another instance variable as well -- a
boolean to indicate whether or not the reference is instantiated. If the
proxy ends up referencing nil (which is a perfectly valid thing to
reference), it will always look like it is not instantiated if you use nil
to signify that...

Later,
Jon

--------------------------------------------------------------
   Jon Hylands      Jon at huv.com      http://www.huv.com/jon

  Project: Micro Seeker (Micro Autonomous Underwater Vehicle)
           http://www.huv.com



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