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8   Batteries Not Included

Some programming language features which are not part of PLAN (but may be included, given that user demand for them exists and that they can be added without compromising safety requirements) are: Some of these are approximated. For example, chunks serve as an approximation for higher-order functions, OnRemote and/or eval may be used to simulate recursion and forward function references, and the resident service package provides more heaviweight, mutable data. In general, the service level may be used to provide functionality not available at the language level.


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