3 ms·

Early versions of Rails explicitly made the decision to never symbolize user inputted hashes because symbols are never garbage collected. This would allow memor

Early versions of Rails explicitly made the decision to never symbolize user inputted hashes because symbols are never garbage collected. This would allow memory to grow unbounded. As a result Rails stores all user hash keys as strings.

phillc 14y ago
Thank you... I always wondered why that was true.
alxndr 14y ago
Ah, I also wondered about that. Is that why HashWithIndifferentAccess uses strings internally?
peterwoo 14y ago
So it's just serendipitous that this isn't the obvious and massive vulnerability it initially seemed to be.