Am 02.10.2008 um 10:26 schrieb Randal L. Schwartz:
But the debugger doesn't have any special privileges, and it can
clearly
access every inst var, regardless of whether accessors exist or not,
through
the magic of #instVarAt: and friends.
There is no magic in #instVarAt:. It exists merely for helping
debugging.
So code would merely have to execute the equivalent of the
primitives behind
#instVarAt: and #instVarAt:put:, and no amount of wrapper class
would help.
That is not correct. There are no primitives that modify/access
*other* objects. That would break encapsulation.
All you need to do to prevent the debugger from accessing instance
variables is overwriting the methods the debugger invokes.
- Bert -
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