Type Structure General Terms Algorithms, Languages
by
Simon Peyton Jones
,
Martin Sulzmann
BibTeX
@MISC{Jones_typestructure,
author = {Simon Peyton Jones and Martin Sulzmann},
title = {Type Structure General Terms Algorithms, Languages},
year = {}
}
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Abstract
Type Checking with Open Type Functions We report on an extension of Haskell with open type-level functions and equality constraints that unifies earlier work on GADTs, functional dependencies, and associated types. The contribution of the paper is that we identify and characterise the key technical challenge of entailment checking; and we give a novel, decidable, sound, and complete algorithm to solve it, together with some practically-important variants. Our system is implemented in GHC, and is already in active use.
