Recipe 2.17: Changing the Method Signature Based on Caller

Last Updated: Sep 8, 2003 Status: Draft

Problem:  

You want to create a method that returns different things based on the caller. For example, you may want to return a read-only hash to some callers, and a read-write hash to others.

Solution:  

You can't. Well, you can, but what you probably meant to do was use multimethods.

Discussion:

If you insist, the caller of a method can be determined by introspecting the context in which the method is called.

Issue: Maybe a good example Problem, but what's the best Solution?

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