Ownership types for object encapsulation
POPL '03 Proceedings of the 30th ACM SIGPLAN-SIGACT symposium on Principles of programming languages
Capabilities for Sharing: A Generalisation of Uniqueness and Read-Only
ECOOP '01 Proceedings of the 15th European Conference on Object-Oriented Programming
Object-oriented encapsulation for dynamically typed languages
OOPSLA '04 Proceedings of the 19th annual ACM SIGPLAN conference on Object-oriented programming, systems, languages, and applications
Ownership and immutability in generic Java
Proceedings of the ACM international conference on Object oriented programming systems languages and applications
Ownership, filters and crossing handlers: flexible ownership in dynamic languages
Proceedings of the 8th symposium on Dynamic languages
Are your incoming aliases really necessary? counting the cost of object ownership
Proceedings of the 2013 International Conference on Software Engineering
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Iterators are an important object-oriented design pattern, providing sequential access to the state stored in other objects. Precisely because iterators need to access the state of other objects, iterators' design can be at odds with the encapsulation provided by object-oriented languages. We present a range of designs for iterator objects, showing how different designs have different encapsulation properties. Studying a range of different iterators can help programmers to identify the strengths and weaknesses of particular designs, and also illustrates some of the issues in the design of encapsulation mechanisms in programming languages.