Partial type constructors in practice

Ingle, Apoorv; Hubers, Alex; Morris, John

doi:10.1145/3546189.3549923

Proceedings of the 15th ACM SIGPLAN International Haskell Symposium 2022

DOI: 10.1145/3546189.3549923

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Partial type constructors in practice

Apoorv Ingle

Alex Hubers

John Morris

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2023

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Generic Programming with Extensible Data Types: Or, Making Ad Hoc Extensible Data Types Less Ad Hoc

Hubers,

Morris

2023

Proc. ACM Program. Lang.

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We present a novel approach to generic programming over extensible data types. Row types capture the structure of records and variants, and can be used to express record and variant subtyping, record extension, and modular composition of case branches. We extend row typing to capture generic programming over rows themselves, capturing patterns including lifting operations to records and variations from their component types, and the duality between cases blocks over variants and records of labeled functions, without placing specific requirements on the fields or constructors present in the records and variants. We formalize our approach in System R𝜔, an extension of F𝜔 with row types, and give a denotational semantics for (stratified) R𝜔 in Agda.

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Generic Programming with Extensible Data Types: Or, Making Ad Hoc Extensible Data Types Less Ad Hoc

Hubers,

Morris

2023

Proc. ACM Program. Lang.

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show abstract

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Partial type constructors in practice

Cited by 1 publication

References 17 publications

Generic Programming with Extensible Data Types: Or, Making Ad Hoc Extensible Data Types Less Ad Hoc

Generic Programming with Extensible Data Types: Or, Making Ad Hoc Extensible Data Types Less Ad Hoc

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