~/talk

Practical Generic Programming over a Universe of Native Datatypes

Talkat ICFP 2022 · 2022-09-11..09-16
slides:none on file

Library for Agda implements a universe-of-descriptions approach and exposes regular Agda functions that specialize to native datatypes with a one-liner specialization. It provides a terminating, computable generic eliminator, derived decidable equality and proofs that distinct constructors differ, all built without reflection except a single encoding macro (no reflection except encoding macro). Implementation uses conversion functions and an accessibility predicate to satisfy Agda’s termination checker. Limitations: no nested, mutually recursive, or induction-recursion datatypes yet; artifacts available.

AI-written summary · about

  1. 0:00Start
  2. 3:07Decidable Equality
  3. 5:16Universities of Descriptions
  4. 8:43The Generic Induction Principle
  5. 9:35Proper Computational Behavior
  6. 11:15Proof of Disjointness of Constructors
  7. 11:57Technical Challenges
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