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Principal Type Specialisation

P.E.M. López ; John Hughes (Institutionen för datavetenskap)
Proceedings of the ACM SIGPLAN Symposium on Partial Evaluation and Semantics-Based Program Manipulation, Aizu, 12-14 September 2002 p. 94-105. (2002)
[Konferensbidrag, refereegranskat]

Type specialisation is an approach to program specialisation that works with both a program and its type to produce specialised versions of each. As it combines many powerful features, it appears to be a good framework for automatic program production, - despite the fact that it was designed originally to express optimal specialisation for interpreters written in typed languages. The original specification of type specialisation used a system of rules expressing it as a generalised type system, rather than the usual view of specialisation as generalised evaluation. That system, while powerful, has some weaknesses not widely recognized - the most important being the inability to express principal type specialisations (a principal specialisation is one that is "more general" than any other for a given specialisable term, and from which those can be obtained by a suitable notion of instantiation). This inability is a problem when extending type specialisation to deal with polymorphism or modules. This work presents a different formulation of the system specifying type specialisation capturing the notion of principal specialisation for a language with static constructions and polyvariance. It is a step forward in the study of type specialisation for polymorphic languages and lazy languages, and also permits modularity of specialisation, and better implementations.

Nyckelord: Program specialisation, Qualified types, Type based transformation, Type specialisation

Denna post skapades 2013-02-15.
CPL Pubid: 173638


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Institutioner (Chalmers)

Institutionen för datavetenskap (2002-2004)


Data- och informationsvetenskap

Chalmers infrastruktur