package ppx_meta_conv

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in-package search v0.2.0

Ppx based type_conv for various tree data formats

Install

Dune Dependency

gitlab.com Readme Edit opam file Versions (2)

Authors

J

Jun Furuse

Maintainers

J

jun.furuse@gmail.com

Sources

ppx_meta_conv-4.0.1.tar.bz2

sha256=0e9945064e1057e9dccf586434a399fba4251812d14fc51050b2cc5e76a47c2b

md5=536ea6b606a1217feccffac4609b5ece

doc/ppx_meta_conv.runtime/Meta_conv/Internal/index.html

Module `Meta_conv.Internal`

You should not open this module, unless you are writing decoders/encoders for a new target data type.

Tools used by generated code

val field_assoc_exn : 
  string ->
  string ->
  (string * 'target) list ->
  ('target Error.t -> 'host) ->
  ('host, 'target) Types.Decoder.t_exn ->
  ('host, 'target) Types.Decoder.t_exn

val field_assoc_optional_exn : 
  string ->
  string ->
  (string * 'target) list ->
  ('host, 'target) Types.Decoder.t_exn ->
  ('host option, 'target) Types.Decoder.t_exn

val filter_fields : 
  string list ->
  (string * 'target) list ->
  (string * 'target) list * (string * 'target) list

val embeded_decoding_helper : 
  (string * 'target) list ->
  'target ->
  ('host, 'target Error.t) Result.t ->
  ('host * (string * 'target) list, 'target Error.t) Result.t

helper function for embded record field

Error decoders

They are decoders but just fail

val tuple_arity_error : int -> int -> ('host, 'target) Types.Decoder.t

val variant_arity_error : 
  string ->
  string ->
  int ->
  int ->
  ('host, 'target) Types.Decoder.t

val variant_unknown_tag_error : 
  string ->
  string ->
  ('host, 'target) Types.Decoder.t

val primitive_decoding_failure : string -> ('host, 'target) Types.Decoder.t

val sub_decoders_failed_for_one_of : string -> ('host, 'target) Types.Decoder.t

Misc functions

val list_filter_map : ('a -> 'b option) -> 'a list -> 'b list

List.map + List.filter

val list_mapi : (int -> 'a -> 'b) -> 'a list -> 'b list

val (~?) : 'a list option -> 'a list

On This Page

Tools used by generated code
Error decoders
Misc functions