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Jane Street· Oct 1, 2024Richard Eisenberg: Using OCaml’s Coercion OperatorRichard Eisenberg · Jane StreetA practical tour of subtyping, polymorphic variants and private type abbreviations, with no runtime conversion cost.
8:06ENJane Street· Aug 7, 2024How OCaml's Proposed Include Functor Syntax Reduces RepetitionRichard Eisenberg · Jane StreetA reverse-array example shows how to derive common module functions from a minimal implementation without an extra wrapper module.
14:36ENJane Street· Jun 24, 2024Programming with OCaml's Local ModeRichard Eisenberg · Jane StreetAn example shows how a local list can contain global values, why a non-escaping annotation alone does not ensure stack allocation, and where the experimental feature remains awkward.
11:28ENJane Street· Jun 13, 2024OCaml Local Types: Regional Parameters and Loop RegionsRichard Eisenberg · Jane StreetA demonstration explains why some local parameters can cross a function boundary and how loop regions reclaim allocations.
9:14ENJane Street· May 29, 2024OCaml Local Function Types: Why Partial Application Can EscapeRichard Eisenberg · Jane StreetRichard Eisenberg uses a list-append example to show how a local argument changes the mode of a partially applied function in Jane Street’s OCaml compiler branch.
3:30ENJane Street· Mar 13, 2024Richard Eisenberg on Jane Street's OCaml ExperimentsRichard Eisenberg · Jane StreetJane Street's compiler team is exploring unboxed types, locality modes, and data-race-free parallelism to make OCaml's performance and memory management better suited to its needs.
11:07ENJane Street· Feb 29, 2024How OCaml Locals Use a Separate StackRichard Eisenberg · Jane StreetA list example shows how region-scoped local values can avoid repeated garbage-collected allocations.
12:52ENJane Street· Jan 23, 2024OCaml Local Variables, Return Values and RegionsRichard Eisenberg · Jane StreetA worked example shows how `local_` and `exclave_` let a function accept a local value and return a local structure in its caller's region.
8:52ENJane Street· Jan 5, 2024Introducing Local Parameters in OCamlRichard Eisenberg · Jane StreetA demonstration of how Jane Street's experimental local mode restricts escaping values and makes function interfaces easier to reason about.