Heterogeneous lists

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MIT licensed by 2004 Oleg Kiselyov (FNMOC, Monterey), Ralf Laemmel (CWI/VU, Amsterdam), Keean Schupke (London)
Maintained by oleg@pobox.com

HList provides many operations to create and manipulate heterogenous lists (HLists) whose length and element types are known at compile-time. HLists are used to implement

  • records

  • variants

  • type-indexed products (TIP)

  • type-indexed co-products (TIC)

  • keyword arguments

User code should import Data.HList or Data.HList.CommonMain for a slightly more limited scope