data-encoding
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With_field_name_duplicate_checks is a subset of Encoding where all the constructed objects are checked for duplicates.

Note that the analysis can include false positives: it might fail on encodings which will never serialise a value with duplicate fields. Still, these false positives are uncommon and we recommend you use these combinators when relevant.

let e =
  let open Data_encoding in
  let open Data_encoding.With_field_name_duplicate_checks in
  …
val obj1 : 'f1 field -> 'f1 encoding
val obj2 : 'f1 field -> 'f2 field -> ('f1 * 'f2) encoding
val obj3 : 'f1 field -> 'f2 field -> 'f3 field -> ('f1 * 'f2 * 'f3) encoding
val obj4 : 'f1 field -> 'f2 field -> 'f3 field -> 'f4 field -> ('f1 * 'f2 * 'f3 * 'f4) encoding
val obj5 : 'f1 field -> 'f2 field -> 'f3 field -> 'f4 field -> 'f5 field -> ('f1 * 'f2 * 'f3 * 'f4 * 'f5) encoding
val obj6 : 'f1 field -> 'f2 field -> 'f3 field -> 'f4 field -> 'f5 field -> 'f6 field -> ('f1 * 'f2 * 'f3 * 'f4 * 'f5 * 'f6) encoding
val obj7 : 'f1 field -> 'f2 field -> 'f3 field -> 'f4 field -> 'f5 field -> 'f6 field -> 'f7 field -> ('f1 * 'f2 * 'f3 * 'f4 * 'f5 * 'f6 * 'f7) encoding
val obj8 : 'f1 field -> 'f2 field -> 'f3 field -> 'f4 field -> 'f5 field -> 'f6 field -> 'f7 field -> 'f8 field -> ('f1 * 'f2 * 'f3 * 'f4 * 'f5 * 'f6 * 'f7 * 'f8) encoding
val obj9 : 'f1 field -> 'f2 field -> 'f3 field -> 'f4 field -> 'f5 field -> 'f6 field -> 'f7 field -> 'f8 field -> 'f9 field -> ('f1 * 'f2 * 'f3 * 'f4 * 'f5 * 'f6 * 'f7 * 'f8 * 'f9) encoding
val obj10 : 'f1 field -> 'f2 field -> 'f3 field -> 'f4 field -> 'f5 field -> 'f6 field -> 'f7 field -> 'f8 field -> 'f9 field -> 'f10 field -> ('f1 * 'f2 * 'f3 * 'f4 * 'f5 * 'f6 * 'f7 * 'f8 * 'f9 * 'f10) encoding
val merge_objs : 'o1 encoding -> 'o2 encoding -> ('o1 * 'o2) encoding

Create a larger object from the encodings of two smaller ones.

  • raises Invalid_argument

    if both arguments are not objects or if both tuples contains a variable field..