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Runtime error
Runtime error
File size: 1,399 Bytes
b3b8f74 | 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 | import { Buffer } from 'node:buffer'
const size = 256
let buffer = Buffer.allocUnsafe(size)
const messages = 'BCcDdEFfHPpQSX'.split('').reduce((acc, x) => {
const v = x.charCodeAt(0)
acc[x] = () => {
buffer[0] = v
b.i = 5
return b
}
return acc
}, {})
const b = Object.assign(reset, messages, {
N: String.fromCharCode(0),
i: 0,
inc(x) {
b.i += x
return b
},
str(x) {
const length = Buffer.byteLength(x)
fit(length)
b.i += buffer.write(x, b.i, length, 'utf8')
return b
},
i16(x) {
fit(2)
buffer.writeUInt16BE(x, b.i)
b.i += 2
return b
},
i32(x, i) {
if (i || i === 0) {
buffer.writeUInt32BE(x, i)
return b
}
fit(4)
buffer.writeUInt32BE(x, b.i)
b.i += 4
return b
},
z(x) {
fit(x)
buffer.fill(0, b.i, b.i + x)
b.i += x
return b
},
raw(x) {
buffer = Buffer.concat([buffer.subarray(0, b.i), x])
b.i = buffer.length
return b
},
end(at = 1) {
buffer.writeUInt32BE(b.i - at, at)
const out = buffer.subarray(0, b.i)
b.i = 0
buffer = Buffer.allocUnsafe(size)
return out
}
})
export default b
function fit(x) {
if (buffer.length - b.i < x) {
const prev = buffer
, length = prev.length
buffer = Buffer.allocUnsafe(length + (length >> 1) + x)
prev.copy(buffer)
}
}
function reset() {
b.i = 0
return b
}
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