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dingoskydingosky
committed
Refactor
Non-export functions begin with understore
1 parent 317ab59 commit 7167002

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2 files changed

+36
-35
lines changed

2 files changed

+36
-35
lines changed

‎lib/entropy.js

Lines changed: 33 additions & 33 deletions
Original file line numberDiff line numberDiff line change
@@ -1,11 +1,11 @@
11
import CharSet from './charSet'
22
import lcm from './lcm'
33

4-
const log2 = Math.log2
5-
const log10 = Math.log10
6-
const log2_10 = log2(10)
4+
const _log2 = Math.log2
5+
const _log10 = Math.log10
6+
const _log2_10 = _log2(10)
77

8-
const endianByteNum = (() => {
8+
const _endianByteNum = (() => {
99
const buf32 = new Uint32Array(1)
1010
const buf8 = new Uint8Array(buf32.buffer)
1111
buf32[0] = 0xff
@@ -17,11 +17,11 @@ const bits = (total, risk) => {
1717

1818
let N = 0
1919
if (total < 10001) {
20-
N = log2(total) + log2(total-1) + (log2_10 * log10(risk)) - 1
20+
N = _log2(total) + _log2(total-1) + (_log2_10 * _log10(risk)) - 1
2121
}
2222
else {
23-
const n = 2 * log10(total) + log10(risk)
24-
N = n * log2_10 - 1
23+
const n = 2 * _log10(total) + _log10(risk)
24+
N = n * _log2_10 - 1
2525
}
2626
return N
2727
}
@@ -31,11 +31,11 @@ const bitsWithRiskPower = (total, rPower) => {
3131

3232
let N = 0
3333
if (total < 10001) {
34-
N = log2(total) + log2(total-1) + (log2_10 * rPower) - 1
34+
N = _log2(total) + _log2(total-1) + (_log2_10 * rPower) - 1
3535
}
3636
else {
37-
const n = 2 * log10(total) + rPower
38-
N = n * log2_10 - 1
37+
const n = 2 * _log10(total) + rPower
38+
N = n * _log2_10 - 1
3939
}
4040
return N
4141
}
@@ -47,13 +47,13 @@ const bitsWithPowers = (tPower, rPower) => {
4747
}
4848
else {
4949
const n = 2 * tPower + rPower
50-
N = n * log2_10 - 1
50+
N = n * _log2_10 - 1
5151
}
5252
return N
5353
}
5454

5555
const randomString = (entropy, charSet, crypto = true) => {
56-
const bytes = crypto ? cryptoBytes(entropy, charSet) : randomBytes(entropy, charSet)
56+
const bytes = crypto ? _cryptoBytes(entropy, charSet) : _randomBytes(entropy, charSet)
5757
return randomStringWithBytes(entropy, charSet, bytes)
5858
}
5959

@@ -78,27 +78,27 @@ const randomStringWithBytes = (entropy, charSet, bytes) => {
7878
switch (charSet) {
7979
case CharSet.charSet64:
8080
chars = CharSet.charSet64.chars
81-
ndxFn = ndx64
81+
ndxFn = _ndx64
8282
break
8383
case CharSet.charSet32:
8484
chars = CharSet.charSet32.chars
85-
ndxFn = ndx32
85+
ndxFn = _ndx32
8686
break
8787
case CharSet.charSet16:
8888
chars = CharSet.charSet16.chars
89-
ndxFn = ndx16
89+
ndxFn = _ndx16
9090
break
9191
case CharSet.charSet8:
9292
chars = CharSet.charSet8.chars
93-
ndxFn = ndx8
93+
ndxFn = _ndx8
9494
break
9595
case CharSet.charSet4:
9696
chars = CharSet.charSet4.chars
97-
ndxFn = ndx4
97+
ndxFn = _ndx4
9898
break
9999
case CharSet.charSet2:
100100
chars = CharSet.charSet2.chars
101-
ndxFn = ndx2
101+
ndxFn = _ndx2
102102
break
103103
default:
104104
break
@@ -127,12 +127,12 @@ const bytesNeeded = (entropy, charSet) => {
127127
return Math.ceil(count * bytesPerSlice)
128128
}
129129

130-
const cryptoBytes = (entropy, charSet) => {
130+
const _cryptoBytes = (entropy, charSet) => {
131131
const crypto = require('crypto')
132132
return Buffer.from(crypto.randomBytes(bytesNeeded(entropy, charSet)))
133133
}
134134

135-
const randomBytes = (entropy, charSet) => {
135+
const _randomBytes = (entropy, charSet) => {
136136
const byteCount = bytesNeeded(entropy, charSet)
137137
const randCount = Math.ceil(byteCount / 6)
138138

@@ -141,45 +141,45 @@ const randomBytes = (entropy, charSet) => {
141141
for (let rNum = 0; rNum < randCount; rNum++) {
142142
dataView.setFloat64(0, Math.random())
143143
for (let n = 0; n < 6; n++) {
144-
let fByteNum = endianByteNum[n]
144+
let fByteNum = _endianByteNum[n]
145145
let bByteNum = 6*rNum + n
146-
bufferByte(buffer, bByteNum, fByteNum, byteCount, dataView)
146+
_bufferByte(buffer, bByteNum, fByteNum, byteCount, dataView)
147147
}
148148
}
149149
return buffer
150150
}
151151

152-
const bufferByte = (buffer, bByte, nByte, byteCount, dataView) => {
152+
const _bufferByte = (buffer, bByte, nByte, byteCount, dataView) => {
153153
if (bByte < byteCount) {
154154
buffer[bByte] = dataView.getUint8(nByte)
155155
}
156156
}
157157

158-
const ndx64 = (chunk, slice, bytes) => {
159-
return ndxGen(chunk, slice, bytes, 6)
158+
const _ndx64 = (chunk, slice, bytes) => {
159+
return _ndxGen(chunk, slice, bytes, 6)
160160
}
161161

162-
const ndx32 = (chunk, slice, bytes) => {
163-
return ndxGen(chunk, slice, bytes, 5)
162+
const _ndx32 = (chunk, slice, bytes) => {
163+
return _ndxGen(chunk, slice, bytes, 5)
164164
}
165165

166-
const ndx16 = (chunk, slice, bytes) => {
166+
const _ndx16 = (chunk, slice, bytes) => {
167167
return ((bytes[chunk]<<(4*slice))&0xff)>>4
168168
}
169169

170-
const ndx8 = (chunk, slice, bytes) => {
171-
return ndxGen(chunk, slice, bytes, 3)
170+
const _ndx8 = (chunk, slice, bytes) => {
171+
return _ndxGen(chunk, slice, bytes, 3)
172172
}
173173

174-
const ndx4 = (chunk, slice, bytes) => {
174+
const _ndx4 = (chunk, slice, bytes) => {
175175
return ((bytes[chunk]<<(2*slice))&0xff)>>6
176176
}
177177

178-
const ndx2 = (chunk, slice, bytes) => {
178+
const _ndx2 = (chunk, slice, bytes) => {
179179
return ((bytes[chunk]<<slice)&0xff)>>7
180180
}
181181

182-
const ndxGen = (chunk, slice, bytes, bitsPerSlice) => {
182+
const _ndxGen = (chunk, slice, bytes, bitsPerSlice) => {
183183
let bitsPerByte = 8
184184
let slicesPerChunk = lcm(bitsPerSlice, bitsPerByte) / bitsPerByte
185185

‎lib/lcm.js

Lines changed: 3 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,9 +1,10 @@
1-
const gcd = (a, b) => {
1+
const _gcd = (a, b) => {
22
while (b != 0) {
33
[a, b] = [b, a % b]
44
}
55
return Math.abs(a)
66
}
7+
78
export default (a, b) => {
8-
return (a / gcd(a, b)) * b
9+
return (a / _gcd(a, b)) * b
910
}

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