Publications:Gradual typing for objects
From CERES
| Title | Gradual typing for objects |
|---|---|
| Author | Jeremy Siek and Walid Taha |
| Year | 2007 |
| PublicationType | Conference Paper |
| Journal | |
| HostPublication | ECOOP 2007 – Object-Oriented Programming : 21st European Conference, Berlin, Germany, July 30 - August 3, 2007. Proceedings |
| DOI | http://dx.doi.org/10.1007/978-3-540-73589-2_2 |
| Conference | 21st European Conference on Object-Oriented Programming (ECOOP 2007), Tech Univ Berlin, Berlin, GERMANY, JUL 30-AUG 03, 2007 |
| Diva url | http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:588261 |
| Abstract | Static and dynamic type systems have well-known strengthsand weaknesses. In previous work we developed a gradual type system fora functional calculus named λ?→. Gradual typing provides the benefits ofboth static and dynamic checking in a single language by allowing theprogrammer to control whether a portion of the program is type checkedat compile-time or run-time by adding or removing type annotations onvariables. Several object-oriented scripting languages are preparing toadd static checking. To support that work this paper develops Ob?<:,a gradual type system for object-based languages, extending the Ob<:calculus of Abadi and Cardelli. Our primary contribution is to show thatgradual typing and subtyping are orthogonal and can be combined in aprincipled fashion. We also develop a small-step semantics, provide amachine-checked proof of type safety, and improve the space efficiencyof higher-order casts. |
