package ppx_deriving

5.2 (25/11/2020)

• Update to ppxlib 0.20.0 #237 #239 #243 #245 (Kate Deplaix, Jérémie Dimino, Thierry Martinez, Gabriel Scherer)
• Upgrade testsuite from ounit to ounit2 #241 (Kate Deplaix)
• (almost) use the set of standard flags from dune #246 (Kate Deplaix)

5.1 (26/10/2020)

• Update to ppxlib 0.15.0 #235 (Kate Deplaix)

5.0 (26/10/2020)

• Migrate to ppxlib #206, #210 (Anton Kochkov, Gabriel Scherer, Thierry Martinez)

4.5

• Add support for OCaml 4.11.

  • Ppx_deriving.string_of_{constant,expression}_opt to destruct Pconst_string in a version-independent way #220, #222 (Kate Deplaix, Thierry Martinez, review by Gabriel Scherer)
• Stronger type equalities in Ppx_deriving_runtime (for instance, Ppx_deriving_runtime.result and Result.result are now compatible with all OCaml versions) #223, #225 (Thierry Martinez, review by Gabriel Scherer)
• Ppx_deriving_runtime.Option compatibility module #222 (Thierry Martinez, review by Gabriel Scherer)

4.4.1

• Add support for OCaml 4.10 #211 (Kate Deplaix, review by Gabriel Scherer)

4.4

• Restore support for OCaml 4.02.3 #188 (ELLIOTTCABLE)
• workaround Location.input_filename being empty when using reason-language-server #196 (Ryan Artecona)
• Add support for OCaml 4.08.0 #193, #197, #200 (Gabriel Scherer)

4.3

• use Format through Ppx_deriving_runtime to avoid deprecation warning for users of JaneStreet Base (Stephen Bastians and Gabriel Scherer, review by whitequark)
• silence a ambiguous-field warning (41) in generated code #163 (Étienne Millon, review by Gabriel Scherer)
• use dune #170 (Rudi Grinberg, Jérémie Dimino)
• silence an unused-value warning for show #179 (Nathan Rebours)

4.2.1

• Add support for OCaml 4.06.0 #154, #155, #156, #159 (Gabriel Scherer, Fabian, Leonid Rozenberg)
• Consider { with_path = false } when printing record fields #157 (François Pottier)

4.2

• Add support for OCaml 4.05.0.
• Use the ocaml-migrate-parsetree library to support multiple versions of OCaml.
• Fix comparison order of fields in records (#136).
• Silence an unused rec flag warning in generated code (#137).
• Monomorphize comparison function for builtin types (#115)
• Raise an error when type nonrec is encountered (#116).
• Display an error message when dynamic package loading fails.
• Add a with_path option to @@deriving to skip the module path in generated code (#120).

The homepage for the project has now moved to: https://github.com/ocaml-ppx/ppx_deriving

4.1

• Fix type error with inheritied polymorphic variant type in [@@deriving map].
• Fix incorrect handling of multi-argument constructors in [@@deriving show].
• Add API hooks for ppx_type_conv.

4.0

• Show, eq, ord, map, iter, fold: add support for Result.result.
• Ppx_deriving.Arg: use Result.result instead of polymorphic variants.
• Ppx_deriving.sanitize: parameterize over an opened module.
• Add support for [@@deriving] in module type declarations.
• Add support for loading findlib packages instead of just files in ppx_deriving_main.
• Treat types explicitly qualified with Pervasives also as builtin.
• Compatibility with statically linked ppx drivers.

3.1

• Show, eq, ord: hygienically invoke functions from referenced modules (such as X.pp for X.t when deriving show) to coexist with modules shadowing ones from standard library.
• Iter, map, fold: hygienically invoke List and Array functions.

3.0

• Implement hygiene: Ppx_deriving.{create_quoter,quote,sanitize,with_quoter}.
• Show, eq, ord: add support for lazy_t.
• Add support for [@nobuiltin] attribute.
• Add Ppx_deriving.hash_variant.
• Remove allow_std_type_shadowing option.
• Remove Ppx_deriving.extract_typename_of_type_group.

2.1

• Fix breakage occurring with 4.02.2 w.r.t record labels
• Fix prefixed attribute names ([@deriving.foo.attr] and [@foo.attr]).
• Add allow_std_type_shadowing option for eq and show.

2.0

• Add support for open types.

1.1

• New plugin: create.
• Show, eq, ord: handle _.
• Show, eq, ord, map, iter, fold: handle inheriting from a parametric polymorphic variant type.
• Make Ppx_deriving.poly_{fun,arrow}_of_type_decl construct functions in correct order. This also fixes all derivers with types with more than one parameter.
• Add Ppx_deriving.fold_{left,right}_type_decl.

1.0

• Make deriver names lowercase.
• Remove Findlib+dynlink integration. All derivers must now be explicitly required.
• Allow shortening [%derive.x:] to [%x:] when deriver x exists.
• Make Ppx_deriving.core_type field optional to allow ignoring unsupported [%x:] shorthands.
• Add support for [@@deriving foo { optional = true }] that does not error out if foo is missing, useful for optional dependencies.
• Rename ~name and ~prefix of Ppx_deriving.attr and Ppx_deriving.Arg.payload to ~deriver.
• Renamed Ppx_deriving.Arg.payload to get_attr.
• Add Ppx_deriving.Arg.get_expr and get_flag.

0.3

• Show, Eq, Ord, Iter, Fold: handle ref.
• Show: handle functions.
• Show: include break hints in format strings.
• Show: pull fprintf into local environment.
• Show: add [@polyprinter] and [@opaque].
• Add Ppx_deriving.Arg.expr.

0.2

• New plugins: Enum, Iter, Map, Fold.
• All plugins: don't concatenate affix if type is named t.
• Add [%derive.Foo:] shorthand.
• Show, Eq, Ord: add support for list, array, option.
• Show: include full module path in output, including for types with manifest.
• A lot of changes in Ppx_deriving interface.

0.1

• Initial release.