1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
(*****************************************************************************)
(* *)
(* Open Source License *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
(* *)
(* Permission is hereby granted, free of charge, to any person obtaining a *)
(* copy of this software and associated documentation files (the "Software"),*)
(* to deal in the Software without restriction, including without limitation *)
(* the rights to use, copy, modify, merge, publish, distribute, sublicense, *)
(* and/or sell copies of the Software, and to permit persons to whom the *)
(* Software is furnished to do so, subject to the following conditions: *)
(* *)
(* The above copyright notice and this permission notice shall be included *)
(* in all copies or substantial portions of the Software. *)
(* *)
(* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR*)
(* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *)
(* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *)
(* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER*)
(* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *)
(* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *)
(* DEALINGS IN THE SOFTWARE. *)
(* *)
(*****************************************************************************)
type t = int32
type raw_level = t
include (Compare.Int32 : Compare.S with type t := t)
let encoding = Data_encoding.int32
let pp ppf level = Format.fprintf ppf "%ld" level
let rpc_arg =
let construct raw_level = Int32.to_string raw_level in
let destruct str =
match Int32.of_string str with
| exception _ ->
Error "Cannot parse level"
| raw_level ->
Ok raw_level
in
RPC_arg.make
~descr:"A level integer"
~name:"block_level"
~construct
~destruct
()
let root = 0l
let succ = Int32.succ
let pred l = if l = 0l then None else Some (Int32.pred l)
let diff = Int32.sub
let to_int32 l = l
let of_int32_exn l =
if Compare.Int32.(l >= 0l) then l else invalid_arg "Level_repr.of_int32"
type error += Unexpected_level of Int32.t (* `Permanent *)
let () =
register_error_kind
`Permanent
~id:"unexpected_level"
~title:"Unexpected level"
~description:"Level must be non-negative."
~pp:(fun ppf l ->
Format.fprintf
ppf
"The level is %s but should be non-negative."
(Int32.to_string l))
Data_encoding.(obj1 (req "level" int32))
(function Unexpected_level l -> Some l | _ -> None)
(fun l -> Unexpected_level l)
let of_int32 l = try Ok (of_int32_exn l) with _ -> error (Unexpected_level l)
module Index = struct
type t = raw_level
let path_length = 1
let to_path level l = Int32.to_string level :: l
let of_path = function
| [s] -> (
try Some (Int32.of_string s) with _ -> None )
| _ ->
None
let rpc_arg = rpc_arg
let encoding = encoding
let compare = compare
end