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If you don't explicitly destroy an instance of Person before it goes out of scope doesn't the weakmap keep a reference to it so you'll have a memory leak? I came up with a pattern for protected as other instances of Person can access the variable and those inheriting from Person can. Just fiddled it out so not sure if there are any dis advantages other than extra processing (doesn't look as much as accessing the privates) stackoverflow.com/a/21800194/1641941 Returning a private/protected object is a pain since calling code can then mutate your private/protected.

HMR
– HMR

2014-02-16 14:22:48 +00:00
Commented Feb 16, 2014 at 14:22
2

@HMR Yeah, you have to explicitly destroy the private data. I'm going to add this caveat to my answer.

Scott Rippey
– Scott Rippey

2014-02-16 23:27:13 +00:00
Commented Feb 16, 2014 at 23:27

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