Principal type inference for GADTs
نویسندگان
چکیده
منابع مشابه
Ambivalent Types for Principal Type Inference with GADTs
GADTs, short for Generalized Algebraic DataTypes, which allow constructors of algebraic datatypes to be non-surjective, have many useful applications. However, pattern matching on GADTs introduces local type equality assumptions, which are a source of ambiguities that may destroy principal types— and must be resolved by type annotations. We introduce ambivalent types to tighten the definition o...
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Type inference for Hindley/Milner and variants is well understood as a constraint solving problem. Recent extensions to Hindley/Milner such as generalized algebraic data types (GADTs) force us to go beyond this approach to inference. In this paper we show how to perform type inference for GADTs using Herbrand constraint abduction, a solving method to infer missing facts in terms of Herbrand con...
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ژورنال
عنوان ژورنال: ACM SIGPLAN Notices
سال: 2016
ISSN: 0362-1340,1558-1160
DOI: 10.1145/2914770.2837665