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wanderer🌟 / js-primea-objects



Commit 5418f16a7749446c341174100524c5ddcec4a6a9

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add from/to json utils

Norton Wang committed on 4/27/2018, 2:08:46 AM
Parent: b851241a3490c147c24fd7ab85ee479612353ddb

Files changed

tests/index.jschanged
utils.jsadded
tests/index.jsView
@@ -1,8 +1,9 @@
11 … const Buffer = require('safe-buffer').Buffer
22 … const tape = require('tape')
33 … const cbor = require('borc')
44 … const objects = require('../')
5 …+const utils = require('../utils')
56 …
67 … tape('system objects', t => {
78 … t.equals(objects.getType(), 'invalid')
89 … t.equals(objects.getType(true), 'invalid')
@@ -63,4 +64,36 @@
6364 … t.deepEquals(hashedId01.id, Buffer.from('0ca311b75efd27e7daf6eec8b51b5c1fe33ff233', 'hex'))
6465 …
6566 … t.end()
6667 … })
68 …+
69 …+tape('utils', t => {
70 …+ const id = new objects.ID(Buffer.from([0x1]))
71 …+ const obj = [
72 …+ new objects.ModuleRef({'name': ['i32']}, id),
73 …+ new objects.FunctionRef({
74 …+ identifier: [false, 'main'],
75 …+ actorID: id,
76 …+ params: ['i32'],
77 …+ gas: 100
78 …+ }),
79 …+ Buffer.from([1, 2, 3, 4])
80 …+ ]
81 …+ const json = utils.toJSON(obj)
82 …+ t.deepEquals(JSON.stringify(json), '[{"@ModuleRef":{"id":"0x01"}},{"@FunctionRef":{"id":"0x01","private":false,"name":"main","gas":100}},"0x01020304"]')
83 …+
84 …+ const newObj = [
85 …+ new objects.ModuleRef(undefined, id),
86 …+ new objects.FunctionRef({
87 …+ identifier: [false, 'main'],
88 …+ actorID: id,
89 …+ gas: 100
90 …+ }),
91 …+ Buffer.from([1, 2, 3, 4])
92 …+ ]
93 …+ t.deepEquals(utils.fromJSON(json), newObj)
94 …+
95 …+ const hashedId01 = utils.actorRefToId([0, 1])
96 …+ t.deepEquals(hashedId01.id, Buffer.from('0ca311b75efd27e7daf6eec8b51b5c1fe33ff233', 'hex'))
97 …+
98 …+ t.end()
99 …+})
utils.jsView
@@ -1,0 +1,76 @@
1 …+const { ID, FunctionRef, ModuleRef, generateActorId, getType } = require('./')
2 …+
3 …+const actorRefToId = ref => ref.reduce((parent, curr) => generateActorId({ parent, nonce: curr }), null)
4 …+
5 …+const toHex = arg => Buffer.isBuffer(arg) ? `0x${arg.toString('hex')}` : arg
6 …+
7 …+const fromHex = arg => typeof arg !== 'string' ? arg : Buffer.from(arg.slice(0, 2) === '0x' ? arg.slice(2) : arg, 'hex')
8 …+
9 …+const toJSON = arg => {
10 …+ switch (getType(arg)) {
11 …+ case 'elem':
12 …+ return arg.map(toJSON)
13 …+ case 'id':
14 …+ return toJSON(arg.id)
15 …+ case 'func':
16 …+ return {
17 …+ '@FunctionRef': {
18 …+ id: toJSON(arg.actorID),
19 …+ private: arg.identifier[0],
20 …+ name: arg.identifier[1],
21 …+ gas: arg.gas
22 …+ }
23 …+ }
24 …+ case 'mod':
25 …+ return {
26 …+ '@ModuleRef': {
27 …+ id: toJSON(arg.id)
28 …+ }
29 …+ }
30 …+ case 'link':
31 …+ return {
32 …+ '@Link': {
33 …+ '/': toJSON(arg['/'])
34 …+ }
35 …+ }
36 …+ case 'data':
37 …+ default:
38 …+ return toHex(arg)
39 …+ }
40 …+}
41 …+
42 …+const fromJSON = arg => {
43 …+ if (typeof arg === 'object') {
44 …+ if (Array.isArray(arg)) {
45 …+ return arg.map(fromJSON)
46 …+ }
47 …+
48 …+ if (arg['@FunctionRef']) {
49 …+ const data = arg['@FunctionRef']
50 …+ return new FunctionRef({
51 …+ identifier: [data.private, data.name],
52 …+ actorID: new ID(fromJSON(data.id)),
53 …+ params: data.params,
54 …+ gas: data.gas
55 …+ })
56 …+ } else if (arg['@ModuleRef']) {
57 …+ const data = arg['@ModuleRef']
58 …+ return new ModuleRef(data.exports, new ID(fromJSON(data.id)))
59 …+ } else if (arg['@Link']) {
60 …+ const data = arg['@Link']
61 …+ return {
62 …+ '/': fromJSON(data['/'])
63 …+ }
64 …+ }
65 …+ }
66 …+
67 …+ return fromHex(arg)
68 …+}
69 …+
70 …+module.exports = {
71 …+ actorRefToId,
72 …+ toJSON,
73 …+ fromJSON,
74 …+ toHex,
75 …+ fromHex
76 …+}

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