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Taylor Campbell wrote:
I too agree with the pragmatic problems with the opacity that have been presented. Although I do think that there can be good reasons for needing security, the oversimplified opacity flag is no actual provision for security.
Security is not the motivation for opacity. Maintainability is the main motivation: If I don't expose the internals of my data structures to client programs, then I have a better chance of modifying those internals in a future version of my library without breaking those clients. -- --Per Bothner per@xxxxxxxxxxx http://per.bothner.com/