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Recently, linearity has been proposed as a mechanism for memory management, alias control, and typestate tracking. While linear type systems have been extensively studied in functional programming , their use in object-oriented systems has been limited to useful but ad-hoc annotation systems that track unique pointers. In this paper, we study(More)
Transactional events (TE) are an extension of Concurrent ML (CML), a programming model for synchronous message-passing. Prior work has focused on TE's formal semantics and its implementation. This paper considers programming idioms, particularly those that vary unexpectedly from the corresponding CML idioms. First, we solve a subtle problem with(More)
Linear type systems guarantee that no copies are made of certain program values. The EGO language is a foundational calculus which adds linearity to object oriented languages. EGO allows changes to be made to the interface of an object, such as the addition or removal of methods, as long as such an object is linear, i.e., there exists only one reference to(More)
Software architecture research has proposed using protocols for specifying the interactions between components through ports. Enforcing these protocols in an implementation is difficult. This paper proposes an approach to statically reason about protocol conformance of an implementation. It leverages the architectural guarantees of the ArchJava programming(More)
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