A language with distributed scope
POPL '95 Proceedings of the 22nd ACM SIGPLAN-SIGACT symposium on Principles of programming languages
Theory and Practice of Object Systems - Special issue: type systems
A Theory of Objects
Notes on Typed Object-Oriented Programming
TACS '94 Proceedings of the International Conference on Theoretical Aspects of Computer Software
On Asynchrony in Name-Passing Calculi
ICALP '98 Proceedings of the 25th International Colloquium on Automata, Languages and Programming
A Calculus for Concurrent Objects
CONCUR '96 Proceedings of the 7th International Conference on Concurrency Theory
Compilation and Equivalence of Imperative Objects
Proceedings of the 17th Conference on Foundations of Software Technology and Theoretical Computer Science
Imperative objects and mobile processes
PROCOMET '98 Proceedings of the IFIP TC2/WG2.2,2.3 International Conference on Programming Concepts and Methods
Subtyping and Matching for Mobile Objects
ICTCS '01 Proceedings of the 7th Italian Conference on Theoretical Computer Science
CONCUR '00 Proceedings of the 11th International Conference on Concurrency Theory
Local pi-Calculus at Work: Mobile Objects as Mobile Processes
TCS '00 Proceedings of the International Conference IFIP on Theoretical Computer Science, Exploring New Frontiers of Theoretical Informatics
An Interpretation of Typed Concurrent Objects in the Blue Calculus
TCS '00 Proceedings of the International Conference IFIP on Theoretical Computer Science, Exploring New Frontiers of Theoretical Informatics
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In Obliq, a lexically scoped, distributed, object-oriented programming language, object migration was suggested as the creation of a copy of an object's state at the target site, followed by turning the object itself into an alias, also called surrogate, for the remote copy. We consider the creation of object surrogates as an abstraction of the abovementioned style of migration. We introduce 脴jeblik, a distribution-free subset of Obliq, and provide three different conguratlaion-style semantics, which only differ in the respective aliasing model. We show that two of the semantics, one of which matches Obliq's implementation, render migration unsafe, while our new proposal for a third semantics is provably safe. Our work suggests a straightforward repair of Obliq's aliasing model such that it allows programs to safely migrate objects.