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Variations on variants
Proceedings of the 8th ACM SIGPLAN Symposium on Haskell - Haskell 2015
Extensible variants improve the modularity and expressiveness of programming languages: they allow program functionality to be decomposed into independent blocks, and allow seamless extension of existing code with both new cases of existing data types and new operations over those data types. This paper considers three approaches to providing extensible variants in Haskell. Row typing is a long understood mechanism for typing extensible records and variants, but its adoption would requiredoi:10.1145/2804302.2804320 dblp:conf/haskell/Morris15 fatcat:sbyjsd2xmjf3bc7wzlr3ybewga