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
(*****************************************************************************)
(* *)
(* 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 error += Invalid_fitness (* `Permanent *)
let () =
register_error_kind
`Permanent
~id:"invalid_fitness"
~title:"Invalid fitness"
~description:"Fitness representation should be exactly 8 bytes long."
~pp:(fun ppf () -> Format.fprintf ppf "Invalid fitness")
Data_encoding.empty
(function Invalid_fitness -> Some () | _ -> None)
(fun () -> Invalid_fitness)
let int64_to_bytes i =
let b = MBytes.create 8 in
MBytes.set_int64 b 0 i ; b
let int64_of_bytes b =
if Compare.Int.(MBytes.length b <> 8) then error Invalid_fitness
else ok (MBytes.get_int64 b 0)
let from_int64 fitness =
[MBytes.of_string Constants_repr.version_number; int64_to_bytes fitness]
let to_int64 = function
| [version; fitness]
when Compare.String.(
MBytes.to_string version = Constants_repr.version_number) ->
int64_of_bytes fitness
| [version; _fitness (* ignored since higher version takes priority *)]
when Compare.String.(
MBytes.to_string version = Constants_repr.version_number_004) ->
ok 0L
| [] ->
ok 0L
| _ ->
error Invalid_fitness