کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
434503 | 689745 | 2014 | 41 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Semantic Types and Approximation for Featherweight Java Semantic Types and Approximation for Featherweight Java](/preview/png/434503.png)
We consider semantics for the class-based object-oriented calculus Featherweight Java (without casts) based upon approximation. We also define an intersection type assignment system for this calculus and show that it satisfies subject reduction and expansion, i.e. types are preserved under reduction and its converse. We establish a link between type assignment and the approximation semantics by showing an approximation result, which leads to a sufficient condition for the characterisation of head-normalisation and termination. We show the expressivity of both our calculus and our type system by defining an encoding of Combinatory Logic into our calculus and showing that this encoding preserves typeability. We also show that our system characterises the normalising and strongly normalising terms for this encoding. We thus demonstrate that the great analytic capabilities of intersection types can be applied to the context of class-based object orientation.
Journal: Theoretical Computer Science - Volume 517, 16 January 2014, Pages 34–74