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A formal soundness proof of region-based memory management for object-oriented paradigm.

Craciun, F. and Qin, S. and Chin, W.-N. (2008) 'A formal soundness proof of region-based memory management for object-oriented paradigm.', in Formal methods and software engineering : 10th International Conference on Formal Engineering Methods, ICFEM 2008, 27-31 October 2008, Kitakyushu-City, Japan ; proceedings. Berlin: Springer, pp. 126-146. Lecture notes in computer science. (5256).


Region-based memory management has been proposed as a viable alternative to garbage collection for real-time applications and embedded software. In our previous work we have developed a region type inference algorithm that provides an automatic compile-time region-based memory management for object-oriented paradigm. In this work we present a formal soundness proof of the region type system that is the target of our region inference. More precisely, we prove that the object-oriented programs accepted by our region type system achieve region-based memory management in a safe way. That means, the regions follow a stack-of-regions discipline and regions deallocation never create dangling references in the store and on the program stack. Our contribution is to provide a simple syntactic proof that is based on induction and follows the standard steps of a type safety proof. In contrast the previous safety proofs provided for other region type systems employ quite elaborate techniques.

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Record Created:23 Nov 2009 13:05
Last Modified:31 Mar 2015 12:53

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