If attribute accessors look different from method calls, and you change something that makes what used to be an accessor into a method call (e.g. it now has to set a property of some other contained object instead), the code using this API would have to change. That's why accessors should not look different from other methods.

In reply to Re^5: tie for Perlish, encapsulated objects by perrin
in thread tie for Perlish, encapsulated objects by Roy Johnson

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