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  1. Proceedings of the 2013 ACM SIGPLAN symposium on Haskell (Haskell '13)
  2. Names for free: polymorphic views of names and binders
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An EDSL approach to high performance Haskell programming
Names for free: polymorphic views of names and binders
Understanding idiomatic traversals backwards and forwards
Adding structure to monoids: thus hopefully ending Haskell's string type confusion
Splittable pseudorandom number generators using cryptographic hashing
Extensible effects: an alternative to monad transformers
Maintaining verified software
Hasochism: the pleasure and pain of dependently typed haskell programming
Data flow fusion with series expressions in Haskell
The Intel labs Haskell research compiler
Monadic functional reactive programming
Mio: a high-performance multicore io manager for GHC
Causality of optimized Haskell: what is burning our cycles?

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Names for free: polymorphic views of names and binders

Content Provider ACM Digital Library
Author Bernardy, Jean-Philippe Pouillard, Nicolas
Abstract We propose a novel technique to represent names and binders in Haskell. The dynamic (run-time) representation is based on de Bruijn indices, but it features an interface to write and manipulate variables conviently, using Haskell-level lambdas and variables. The key idea is to use rich types: a subterm with an additional free variable is viewed either as forallν.ν → Term(ɑ + ν) or ϶ν.ν x Term(ν.ν) depending on whether it is constructed or analysed. We demonstrate on a number of examples how this approach permits to express term construction and manipulation in a natural way, while retaining the good properties of representations based on de Bruijn indices.
Starting Page 13
Ending Page 24
Page Count 12
File Format PDF
ISBN 9781450323833
DOI 10.1145/2503778.2503780
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2013-09-23
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Parametricity Nested types Type-classes Name binding Polymorphism
Content Type Text
Resource Type Article
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