Expand nodes before applying derivers or other inline attributes based transformation, allowing better interactions between extensions and derivers (#279, #297, @NathanReb)
Add support for registering ppx_import as a pseudo context-free rule (#271, @NathanReb)
Add input_name to the Expansion_context.Extension and Expansion_context.Deriver modules (#284, @tatchi)
Improve gen_symbol to strip previous unique suffix before adding a new one (#285, @ceastlund)
Improve name_type_params_in_td to use prefixes a, b, ... instead of v_x. (#285, @ceastlund)
Fix a bug in type_is_recursive and really_recursive where they would consider a type declaration recursive if the type appeared inside an attribute payload (#299, @NathanReb)
0.23.0 (31/08/2021)
Drop Parser from the API (#263, @pitag-ha)
Location: add set_filename and Error.get_location (#247, @pitag-ha)
Drop dependency on OMP2 (#187, @pitag-ha)
Make OMP1 a conflict (#255, @kit-ty-kate)
Drop Syntaxerr from the public API. Doesn't affect any user in the ppx universe (#244, @pitag-ha)
Add a lower-bound constraint for Sexplib0 (#240, @pitag-ha)
Fix bug due to which unwanted public binaries got installed when installing ppxlib (#223, @pitag-ha)
Add Keyword.is_keyword to check if a string is an OCaml keyword (#227, @pitag-ha)
Remove Lexer.keyword_table: use Keyword.is_keyword instead (#227, @pitag-ha)
Remove Lexer from the API: it was the same as the compiler-libs Lexer (#228, @pitag-ha)
Remove the modules Ast_magic, Compiler_version, Js, Find_version, Convert, Extra_warnings, Location_error, Select_ast and Import_for_core from the API: they are meant for internal use and aren't used by any current downstream user in the ppx universe (#230, @pitag-ha)
Remove compiler specific helper functions from Location. They aren't used by any current downstream user in the ppx universe (#238, @pitag-ha)
Allow "%a" when using Location.Error.createf (#239, @mlasson)
Fix in Location: make raise_errorf exception equivalent to exception Error (#242, @pitag-ha)
Fix in Pprintast: correctly pretty print local type substitutions, e.g. type t := ... (#261, @matthewelse)
Add Ast_pattern.esequence, for matching on any number of sequenced expressions e.g. do_a (); do_b (); .... (#264, @matthewelse)
Expose a part of Ast_io in order to allow reading AST values from binary files (#270, @arozovyk)
0.22.2 (23/06/2021)
Make ppxlib compatible with 4.13 compiler (#260, @kit-ty-kate)
0.22.1 (10/06/2021)
Fix location in parse error reporting (#257, @pitag-ha)
0.21.1 (09/06/2021)
Fix location in parse error reporting (#256, @pitag-ha)
0.22.0 (04/02/2021)
Bump ppxlib's AST to 4.12 (#193, @NathanReb)
0.21.0 (22/01/2021)
Fix ppxlib.traverse declaration and make it a deriver and not a rewriter (#213, @NathanReb)
Driver (important for bucklescript): handling binary AST's, accept any supported version as input; preserve that version (#205, @pitag-ha)
-as-ppx: take into account the -loc-filename argument (#197, @pitag-ha)
Add input name to expansion context (#202, @pitag-ha)
Add Driver.V2: give access to expansion context in whole file transformation callbacks of register_transformation (#202, @pitag-ha)
Driver: take -cookie argument into account, also when the input is a binary AST (@pitag-ha, #209)
run_as_ppx_rewriter: take into account the arguments -loc-filename, apply and dont-apply (#205, @pitag-ha)
Location.Error: add functions raise and update_loc (#205, @pitag-ha)
Implement name mangling for ppxlib_traverse (#159, @ceastlund)
0.14.0 (08/07/2020)
Bump ppxlib's AST to 4.10 (#130, @NathanReb)
Remove omp_config from Expansion_context and replace it with tool_name (#149, @NathanReb)
Change undocumented Ppxlib.Driver.map_structure to return a ppxlib's structure instead of a Migrate_parsetree.Driver.some_structure. (#153, @NathanReb)
0.13.0 (04/15/2020)
Add 'metaquot.' prefix to disambiguate metaquote extensions (#121, @ceastlund)
Bump dune language to 1.11 since the cinaps extension requires at least Dune 1.11 (#126, @diml)
0.12.0 (01/07/2020)
Support for OCaml 4.10 (#109, @xclerc)
0.11.0 (01/07/2020)
Invariant check on locations (#107, @trefis)
0.10.0 (11/21/2019)
Do not produce a suprious empty correction when deriving_inline expands into an extension that undergoes further expansion (#86, @aalekseyev)
Add Ppxlib.Quoter. This module allows to generate hygienic code fragments in the spirit of ppx_deriving. (#92, @rgrinberg)
Allow for registering derivers on module type declarations. (#94, fix #83, @rgrinberg)
Fix parsing long idenitifiers. (#98, @NathanReb)
0.9.0
Bump AST to 4.08 (#80, @xclerc)
0.8.1
Fixed
Report errors according to the value of OCAML_ERROR_STYLE and OCAML_COLOR in the standalone driver (#83, @NathanReb)
0.6.0
Set Location.input_name to the original filename when reading a binary AST (#.., @diml)
0.5.0
Add an (** @inline *) to the include generated when silencing warning 32 (#58, @trefis)
Add Ppxlib.mk_named_sig and Ppxlib.is_polymorphic_variant (#57, @trefis)
0.4.0
Do not report errors about dropped or uninterpreted attributes starting with _ (#46, fix #40, @diml)
Fix he special_function rule for dotted operators and allow Longident.parse to parse dotted operators (#44, @Octachron)
Port to dune and remove use of bash (#45, @rgrinberg)
Ignore all attribites starting with _ (#46, @diml)
Reserve the reason and refmt namespaces (#46, @diml)
Reserve the metaocaml namespace (#50, @rgrinberg)
Fix attribute extraction for Otag/Rtag (#51, @xclerc)
Do not relocate files unless -loc-filename is passed (#55, @hhugo)
Preserve the filename in the output (#56, @hhugo)
0.3.1
Add Attribute.declare_with_name_loc (#33, @diml)
Let the tool name pass thought when used as a -ppx (#41, @diml)
Update the AST to 4.06 (#8, @xclerc)
0.3.0
Update the AST to 4.06 (#8, @xclerc)
Deprecate old references to type_conv in argument and rewriter names and add new ones mentioning deriving instead (#7, #9 @xclerc)
Fix compatibility with -safe-string (#10, @hhugo)
Restore tests (#11, @xclerc)
Allow to set the suffix of corrected files (#15, @diml)
Restore compatibility with OCaml 4.04.x (#16, @xclerc)
0.2.0
Make sure to import command line arguments registered with ocaml-migrate-parsetree (#5, @diml)
Fix an issue where cookies set from the command line sometimes disappeared (#6, @diml)