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Type-safe pattern combinators

Published online by Cambridge University Press:  01 March 2009

MORTEN RHIGER
MORTEN RHIGER*
Affiliation:
The IT University of Copenhagen, Copenhagen, Denmark (e-mail: mir@itu.dk)
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Abstract

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Macros still haven't made their way into typed higher-order programming languages such as Haskell and Standard ML. Therefore, to extend the expressiveness of Haskell or Standard ML, one must express new linguistic features in terms of functions that fit within the static type systems of these languages. This is particularly challenging when introducing features that span across multiple types and that bind variables. We address this challenge by developing, in a step by step manner, mechanisms for encoding patterns and pattern matching in Haskell in a type-safe way.

Type
Functional Pearls
Information
Journal of Functional Programming , Volume 19 , Issue 2 , March 2009 , pp. 145 - 156
Copyright
Copyright © Cambridge University Press 2008

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