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| Content Provider | ACM Digital Library |
|---|---|
| Author | Nistor, Ligia |
| Abstract | A significant concern in verification research is the ability to reason modularly about programs with state. Recent work has used substructural logics including separation logic , permissions, and Hoare Type Theory to specify each function in terms of its effect on its footprint. The motivation of our work is the need for formal specifications that allow one to hide shared data between two abstractions. In 2014, we proposed object propositions as an automatable extension to abstract predicates. We allow state to be shared between two objects, by providing fractional permissions to access the common data hidden in a predicate, without revealing this sharing in the objects' specifications. Unlike conventional object invariant and ownership-based work, our system allows ownership transfer by passing unique permissions (permissions with a fraction of 1) from one reference to another. Unlike separation logic and permission systems, we can modify objects without owning them. This has information-hiding and system-structuring benefits. . |
| Starting Page | 22 |
| Ending Page | 22 |
| Page Count | 1 |
| File Format | |
| ISBN | 9781450340335 |
| DOI | 10.1145/2892664.2892705 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2016-03-14 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Observer pattern Modularity Object propositions |
| Content Type | Text |
| Resource Type | Article |
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