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Json_typed: use inline recode for case fields

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This commit is contained in:
Grégoire Henry 2018-05-29 14:12:42 +02:00
parent 7aa753fea1
commit 47f8bbbe68
1 changed files with 22 additions and 15 deletions
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37
vendors/ocplib-json-typed/lib_json_typed/json_encoding.ml vendored
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@ -88,9 +88,9 @@ and bounds =
maximum : float }
and _ field =
| Req : string * 'a encoding -> 'a field
| Opt : string * 'a encoding -> 'a option field
| Dft : string * 'a encoding * 'a -> 'a field
| Req : { name: string ; encoding: 'a encoding } -> 'a field
| Opt : { name: string ; encoding: 'a encoding } -> 'a option field
| Dft : { name: string ; encoding: 'a encoding ; default: 'a } -> 'a field
and 't case =
| Case : { encoding : 'a encoding ;
@ -134,13 +134,13 @@ module Make (Repr : Json_repr.Repr) = struct
| Array t ->
let w v = construct t v in
(fun arr -> Repr.repr (`A (Array.to_list (Array.map w arr))))
| Obj (Req (n, t)) ->
| Obj (Req { name = n ; encoding = t }) ->
let w v = construct t v in
(fun v -> Repr.repr (`O [ n, w v ]))
| Obj (Dft (n, t, d)) ->
| Obj (Dft { name = n ; encoding = t ; default = d }) ->
let w v = construct t v in
(fun v -> Repr.repr (`O (if v <> d then [ n, w v ] else [])))
| Obj (Opt (n, t)) ->
| Obj (Opt { name = n ; encoding = t }) ->
let w v = construct t v in
(function None -> Repr.repr (`O []) | Some v -> Repr.repr (`O [ n, w v ]))
| Objs (o1, o2) ->
@ -310,7 +310,7 @@ module Make (Repr : Json_repr.Repr) = struct
match t with
| Empty -> (fun fields -> (), fields, false)
| Ignore -> (fun fields -> (), fields, true)
| Obj (Req (n, t)) ->
| Obj (Req { name = n ; encoding = t }) ->
(fun fields ->
try
let v, rest = assoc [] n fields in
@ -320,7 +320,7 @@ module Make (Repr : Json_repr.Repr) = struct
raise (Cannot_destruct ([], Missing_field n))
| Cannot_destruct (path, err) ->
raise (Cannot_destruct (`Field n :: path, err)))
| Obj (Opt (n, t)) ->
| Obj (Opt { name = n ; encoding = t }) ->
(fun fields ->
try
let v, rest = assoc [] n fields in
@ -329,7 +329,7 @@ module Make (Repr : Json_repr.Repr) = struct
| Not_found -> None, fields, false
| Cannot_destruct (path, err) ->
raise (Cannot_destruct (`Field n :: path, err)))
| Obj (Dft (n, t, d)) ->
| Obj (Dft { name = n ; encoding = t ; default = d }) ->
(fun fields ->
try
let v, rest = assoc [] n fields in
@ -392,9 +392,9 @@ let schema encoding =
| Conv (_, _, o, None) -> object_schema o
| Empty -> [ [], false ]
| Ignore -> [ [], true ]
| Obj (Req (n, t)) -> [ [ n, schema t, true, None ], false ]
| Obj (Opt (n, t)) -> [ [ n, schema t, false, None ], false ]
| Obj (Dft (n, t, d)) ->
| Obj (Req { name = n ; encoding = t }) -> [ [ n, schema t, true, None ], false ]
| Obj (Opt { name = n ; encoding = t }) -> [ [ n, schema t, false, None ], false ]
| Obj (Dft { name = n ; encoding = t ; default = d }) ->
let d = Json_repr.repr_to_any (module Json_repr.Ezjsonm) (Ezjsonm_encoding.construct t d) in
[ [ n, schema t, false, Some d], false ]
| Objs (o1, o2) ->
@ -515,9 +515,16 @@ let schema encoding =
(*-- utility wrappers over the GADT ------------------------------------------*)
let req ?title ?description n t = Req (n, Describe { title ; encoding = t ; description })
let opt ?title ?description n t = Opt (n, Describe { title ; encoding = t; description })
let dft ?title ?description n t d = Dft (n, Describe { title ; encoding = t ; description }, d)
let req ?title ?description n t = Req { name = n ;
encoding =
Describe { title ; encoding = t ; description } }
let opt ?title ?description n t = Opt { name = n ;
encoding =
Describe { title ; encoding = t; description } }
let dft ?title ?description n t d = Dft { name = n ;
encoding =
Describe { title ; encoding = t ; description } ;
default = d }
let mu name self = Mu (name, self)
let null = Null