File: /var/www/vhosts/textpony-prod.2amigos.us/docroot/node_modules/msgpackr/pack.js
"use strict"
import { Unpackr, mult10, C1Type, typedArrays, addExtension as unpackAddExtension } from './unpack.js'
let textEncoder
try {
textEncoder = new TextEncoder()
} catch (error) {}
let extensions, extensionClasses
const hasNodeBuffer = typeof Buffer !== 'undefined'
const ByteArrayAllocate = hasNodeBuffer ?
function(length) { return Buffer.allocUnsafeSlow(length) } : Uint8Array
const ByteArray = hasNodeBuffer ? Buffer : Uint8Array
const MAX_BUFFER_SIZE = hasNodeBuffer ? 0x100000000 : 0x7fd00000
let target, keysTarget
let targetView
let position = 0
let safeEnd
let bundledStrings = null
const MAX_BUNDLE_SIZE = 0xf000
const hasNonLatin = /[\u0080-\uFFFF]/
const RECORD_SYMBOL = Symbol('record-id')
export class Packr extends Unpackr {
constructor(options) {
super(options)
this.offset = 0
let typeBuffer
let start
let hasSharedUpdate
let structures
let referenceMap
let lastSharedStructuresLength = 0
let encodeUtf8 = ByteArray.prototype.utf8Write ? function(string, position) {
return target.utf8Write(string, position, 0xffffffff)
} : (textEncoder && textEncoder.encodeInto) ?
function(string, position) {
return textEncoder.encodeInto(string, target.subarray(position)).written
} : false
let packr = this
if (!options)
options = {}
let isSequential = options && options.sequential
let hasSharedStructures = options.structures || options.saveStructures
let maxSharedStructures = options.maxSharedStructures
if (maxSharedStructures == null)
maxSharedStructures = hasSharedStructures ? 32 : 0
if (maxSharedStructures > 8160)
throw new Error('Maximum maxSharedStructure is 8160')
if (options.structuredClone && options.moreTypes == undefined) {
options.moreTypes = true
}
let maxOwnStructures = options.maxOwnStructures
if (maxOwnStructures == null)
maxOwnStructures = hasSharedStructures ? 32 : 64
if (!this.structures && options.useRecords != false)
this.structures = []
// two byte record ids for shared structures
let useTwoByteRecords = maxSharedStructures > 32 || (maxOwnStructures + maxSharedStructures > 64)
let sharedLimitId = maxSharedStructures + 0x40
let maxStructureId = maxSharedStructures + maxOwnStructures + 0x40
if (maxStructureId > 8256) {
throw new Error('Maximum maxSharedStructure + maxOwnStructure is 8192')
}
let recordIdsToRemove = []
let transitionsCount = 0
let serializationsSinceTransitionRebuild = 0
this.pack = this.encode = function(value, encodeOptions) {
if (!target) {
target = new ByteArrayAllocate(8192)
targetView = new DataView(target.buffer, 0, 8192)
position = 0
}
safeEnd = target.length - 10
if (safeEnd - position < 0x800) {
// don't start too close to the end,
target = new ByteArrayAllocate(target.length)
targetView = new DataView(target.buffer, 0, target.length)
safeEnd = target.length - 10
position = 0
} else
position = (position + 7) & 0x7ffffff8 // Word align to make any future copying of this buffer faster
start = position
referenceMap = packr.structuredClone ? new Map() : null
if (packr.bundleStrings && typeof value !== 'string') {
bundledStrings = []
bundledStrings.size = Infinity // force a new bundle start on first string
} else
bundledStrings = null
structures = packr.structures
if (structures) {
if (structures.uninitialized)
structures = packr._mergeStructures(packr.getStructures())
let sharedLength = structures.sharedLength || 0
if (sharedLength > maxSharedStructures) {
//if (maxSharedStructures <= 32 && structures.sharedLength > 32) // TODO: could support this, but would need to update the limit ids
throw new Error('Shared structures is larger than maximum shared structures, try increasing maxSharedStructures to ' + structures.sharedLength)
}
if (!structures.transitions) {
// rebuild our structure transitions
structures.transitions = Object.create(null)
for (let i = 0; i < sharedLength; i++) {
let keys = structures[i]
if (!keys)
continue
let nextTransition, transition = structures.transitions
for (let j = 0, l = keys.length; j < l; j++) {
let key = keys[j]
nextTransition = transition[key]
if (!nextTransition) {
nextTransition = transition[key] = Object.create(null)
}
transition = nextTransition
}
transition[RECORD_SYMBOL] = i + 0x40
}
lastSharedStructuresLength = sharedLength
}
if (!isSequential) {
structures.nextId = sharedLength + 0x40
}
}
if (hasSharedUpdate)
hasSharedUpdate = false
try {
pack(value)
if (bundledStrings) {
writeBundles(start, pack)
}
packr.offset = position // update the offset so next serialization doesn't write over our buffer, but can continue writing to same buffer sequentially
if (referenceMap && referenceMap.idsToInsert) {
position += referenceMap.idsToInsert.length * 6
if (position > safeEnd)
makeRoom(position)
packr.offset = position
let serialized = insertIds(target.subarray(start, position), referenceMap.idsToInsert)
referenceMap = null
return serialized
}
if (encodeOptions & REUSE_BUFFER_MODE) {
target.start = start
target.end = position
return target
}
return target.subarray(start, position) // position can change if we call pack again in saveStructures, so we get the buffer now
} finally {
if (structures) {
if (serializationsSinceTransitionRebuild < 10)
serializationsSinceTransitionRebuild++
let sharedLength = structures.sharedLength || maxSharedStructures
if (structures.length > sharedLength)
structures.length = sharedLength
if (transitionsCount > 10000) {
// force a rebuild occasionally after a lot of transitions so it can get cleaned up
structures.transitions = null
serializationsSinceTransitionRebuild = 0
transitionsCount = 0
if (recordIdsToRemove.length > 0)
recordIdsToRemove = []
} else if (recordIdsToRemove.length > 0 && !isSequential) {
for (let i = 0, l = recordIdsToRemove.length; i < l; i++) {
recordIdsToRemove[i][RECORD_SYMBOL] = 0
}
recordIdsToRemove = []
}
if (hasSharedUpdate && packr.saveStructures) {
// we can't rely on start/end with REUSE_BUFFER_MODE since they will (probably) change when we save
let returnBuffer = target.subarray(start, position)
if (packr.saveStructures(structures, lastSharedStructuresLength) === false) {
// get updated structures and try again if the update failed
packr._mergeStructures(packr.getStructures())
return packr.pack(value)
}
lastSharedStructuresLength = sharedLength
return returnBuffer
}
}
if (encodeOptions & RESET_BUFFER_MODE)
position = start
}
}
const pack = (value) => {
if (position > safeEnd)
target = makeRoom(position)
var type = typeof value
var length
if (type === 'string') {
let strLength = value.length
if (bundledStrings && strLength >= 4 && strLength < 0x1000) {
if ((bundledStrings.size += strLength) > MAX_BUNDLE_SIZE) {
let extStart
let maxBytes = (bundledStrings[0] ? bundledStrings[0].length * 3 + bundledStrings[1].length : 0) + 10
if (position + maxBytes > safeEnd)
target = makeRoom(position + maxBytes)
if (bundledStrings.position) { // here we use the 0x62 extension to write the last bundle and reserve sapce for the reference pointer to the next/current bundle
target[position] = 0xc8 // ext 16
position += 3 // reserve for the writing bundle size
target[position++] = 0x62 // 'b'
extStart = position - start
position += 4 // reserve for writing bundle reference
writeBundles(start, pack) // write the last bundles
targetView.setUint16(extStart + start - 3, position - start - extStart)
} else { // here we use the 0x62 extension just to reserve the space for the reference pointer to the bundle (will be updated once the bundle is written)
target[position++] = 0xd6 // fixext 4
target[position++] = 0x62 // 'b'
extStart = position - start
position += 4 // reserve for writing bundle reference
}
bundledStrings = ['', ''] // create new ones
bundledStrings.size = 0
bundledStrings.position = extStart
}
let twoByte = hasNonLatin.test(value)
bundledStrings[twoByte ? 0 : 1] += value
target[position++] = 0xc1
pack(twoByte ? -strLength : strLength);
return
}
let headerSize
// first we estimate the header size, so we can write to the correct location
if (strLength < 0x20) {
headerSize = 1
} else if (strLength < 0x100) {
headerSize = 2
} else if (strLength < 0x10000) {
headerSize = 3
} else {
headerSize = 5
}
let maxBytes = strLength * 3
if (position + maxBytes > safeEnd)
target = makeRoom(position + maxBytes)
if (strLength < 0x40 || !encodeUtf8) {
let i, c1, c2, strPosition = position + headerSize
for (i = 0; i < strLength; i++) {
c1 = value.charCodeAt(i)
if (c1 < 0x80) {
target[strPosition++] = c1
} else if (c1 < 0x800) {
target[strPosition++] = c1 >> 6 | 0xc0
target[strPosition++] = c1 & 0x3f | 0x80
} else if (
(c1 & 0xfc00) === 0xd800 &&
((c2 = value.charCodeAt(i + 1)) & 0xfc00) === 0xdc00
) {
c1 = 0x10000 + ((c1 & 0x03ff) << 10) + (c2 & 0x03ff)
i++
target[strPosition++] = c1 >> 18 | 0xf0
target[strPosition++] = c1 >> 12 & 0x3f | 0x80
target[strPosition++] = c1 >> 6 & 0x3f | 0x80
target[strPosition++] = c1 & 0x3f | 0x80
} else {
target[strPosition++] = c1 >> 12 | 0xe0
target[strPosition++] = c1 >> 6 & 0x3f | 0x80
target[strPosition++] = c1 & 0x3f | 0x80
}
}
length = strPosition - position - headerSize
} else {
length = encodeUtf8(value, position + headerSize)
}
if (length < 0x20) {
target[position++] = 0xa0 | length
} else if (length < 0x100) {
if (headerSize < 2) {
target.copyWithin(position + 2, position + 1, position + 1 + length)
}
target[position++] = 0xd9
target[position++] = length
} else if (length < 0x10000) {
if (headerSize < 3) {
target.copyWithin(position + 3, position + 2, position + 2 + length)
}
target[position++] = 0xda
target[position++] = length >> 8
target[position++] = length & 0xff
} else {
if (headerSize < 5) {
target.copyWithin(position + 5, position + 3, position + 3 + length)
}
target[position++] = 0xdb
targetView.setUint32(position, length)
position += 4
}
position += length
} else if (type === 'number') {
if (value >>> 0 === value) {// positive integer, 32-bit or less
// positive uint
if (value < 0x40 || (value < 0x80 && this.useRecords === false)) {
target[position++] = value
} else if (value < 0x100) {
target[position++] = 0xcc
target[position++] = value
} else if (value < 0x10000) {
target[position++] = 0xcd
target[position++] = value >> 8
target[position++] = value & 0xff
} else {
target[position++] = 0xce
targetView.setUint32(position, value)
position += 4
}
} else if (value >> 0 === value) { // negative integer
if (value >= -0x20) {
target[position++] = 0x100 + value
} else if (value >= -0x80) {
target[position++] = 0xd0
target[position++] = value + 0x100
} else if (value >= -0x8000) {
target[position++] = 0xd1
targetView.setInt16(position, value)
position += 2
} else {
target[position++] = 0xd2
targetView.setInt32(position, value)
position += 4
}
} else {
let useFloat32
if ((useFloat32 = this.useFloat32) > 0 && value < 0x100000000 && value >= -0x80000000) {
target[position++] = 0xca
targetView.setFloat32(position, value)
let xShifted
if (useFloat32 < 4 ||
// this checks for rounding of numbers that were encoded in 32-bit float to nearest significant decimal digit that could be preserved
((xShifted = value * mult10[((target[position] & 0x7f) << 1) | (target[position + 1] >> 7)]) >> 0) === xShifted) {
position += 4
return
} else
position-- // move back into position for writing a double
}
target[position++] = 0xcb
targetView.setFloat64(position, value)
position += 8
}
} else if (type === 'object') {
if (!value)
target[position++] = 0xc0
else {
if (referenceMap) {
let referee = referenceMap.get(value)
if (referee) {
if (!referee.id) {
let idsToInsert = referenceMap.idsToInsert || (referenceMap.idsToInsert = [])
referee.id = idsToInsert.push(referee)
}
target[position++] = 0xd6 // fixext 4
target[position++] = 0x70 // "p" for pointer
targetView.setUint32(position, referee.id)
position += 4
return
} else
referenceMap.set(value, { offset: position - start })
}
let constructor = value.constructor
if (constructor === Object) {
writeObject(value, true)
} else if (constructor === Array) {
length = value.length
if (length < 0x10) {
target[position++] = 0x90 | length
} else if (length < 0x10000) {
target[position++] = 0xdc
target[position++] = length >> 8
target[position++] = length & 0xff
} else {
target[position++] = 0xdd
targetView.setUint32(position, length)
position += 4
}
for (let i = 0; i < length; i++) {
pack(value[i])
}
} else if (constructor === Map) {
length = value.size
if (length < 0x10) {
target[position++] = 0x80 | length
} else if (length < 0x10000) {
target[position++] = 0xde
target[position++] = length >> 8
target[position++] = length & 0xff
} else {
target[position++] = 0xdf
targetView.setUint32(position, length)
position += 4
}
for (let [ key, entryValue ] of value) {
pack(key)
pack(entryValue)
}
} else {
for (let i = 0, l = extensions.length; i < l; i++) {
let extensionClass = extensionClasses[i]
if (value instanceof extensionClass) {
let extension = extensions[i]
if (extension.write) {
if (extension.type) {
target[position++] = 0xd4 // one byte "tag" extension
target[position++] = extension.type
target[position++] = 0
}
pack(extension.write.call(this, value))
return
}
let currentTarget = target
let currentTargetView = targetView
let currentPosition = position
target = null
let result
try {
result = extension.pack.call(this, value, (size) => {
// restore target and use it
target = currentTarget
currentTarget = null
position += size
if (position > safeEnd)
makeRoom(position)
return {
target, targetView, position: position - size
}
}, pack)
} finally {
// restore current target information (unless already restored)
if (currentTarget) {
target = currentTarget
targetView = currentTargetView
position = currentPosition
safeEnd = target.length - 10
}
}
if (result) {
if (result.length + position > safeEnd)
makeRoom(result.length + position)
position = writeExtensionData(result, target, position, extension.type)
}
return
}
}
// no extension found, write as object
writeObject(value, !value.hasOwnProperty) // if it doesn't have hasOwnProperty, don't do hasOwnProperty checks
}
}
} else if (type === 'boolean') {
target[position++] = value ? 0xc3 : 0xc2
} else if (type === 'bigint') {
if (value < (BigInt(1)<<BigInt(63)) && value >= -(BigInt(1)<<BigInt(63))) {
// use a signed int as long as it fits
target[position++] = 0xd3
targetView.setBigInt64(position, value)
} else if (value < (BigInt(1)<<BigInt(64)) && value > 0) {
// if we can fit an unsigned int, use that
target[position++] = 0xcf
targetView.setBigUint64(position, value)
} else {
// overflow
if (this.largeBigIntToFloat) {
target[position++] = 0xcb
targetView.setFloat64(position, Number(value))
} else {
throw new RangeError(value + ' was too large to fit in MessagePack 64-bit integer format, set largeBigIntToFloat to convert to float-64')
}
}
position += 8
} else if (type === 'undefined') {
if (this.encodeUndefinedAsNil)
target[position++] = 0xc0
else {
target[position++] = 0xd4 // a number of implementations use fixext1 with type 0, data 0 to denote undefined, so we follow suite
target[position++] = 0
target[position++] = 0
}
} else if (type === 'function') {
pack(this.writeFunction && this.writeFunction()) // if there is a writeFunction, use it, otherwise just encode as undefined
} else {
throw new Error('Unknown type: ' + type)
}
}
const writeObject = this.useRecords === false ? this.variableMapSize ? (object) => {
// this method is slightly slower, but generates "preferred serialization" (optimally small for smaller objects)
let keys = Object.keys(object)
let length = keys.length
if (length < 0x10) {
target[position++] = 0x80 | length
} else if (length < 0x10000) {
target[position++] = 0xde
target[position++] = length >> 8
target[position++] = length & 0xff
} else {
target[position++] = 0xdf
targetView.setUint32(position, length)
position += 4
}
let key
for (let i = 0; i < length; i++) {
pack(key = keys[i])
pack(object[key])
}
} :
(object, safePrototype) => {
target[position++] = 0xde // always using map 16, so we can preallocate and set the length afterwards
let objectOffset = position - start
position += 2
let size = 0
for (let key in object) {
if (safePrototype || object.hasOwnProperty(key)) {
pack(key)
pack(object[key])
size++
}
}
target[objectOffset++ + start] = size >> 8
target[objectOffset + start] = size & 0xff
} :
(options.progressiveRecords && !useTwoByteRecords) ? // this is about 2% faster for highly stable structures, since it only requires one for-in loop (but much more expensive when new structure needs to be written)
(object, safePrototype) => {
let nextTransition, transition = structures.transitions || (structures.transitions = Object.create(null))
let objectOffset = position++ - start
let wroteKeys
for (let key in object) {
if (safePrototype || object.hasOwnProperty(key)) {
nextTransition = transition[key]
if (nextTransition)
transition = nextTransition
else {
// record doesn't exist, create full new record and insert it
let keys = Object.keys(object)
let lastTransition = transition
transition = structures.transitions
let newTransitions = 0
for (let i = 0, l = keys.length; i < l; i++) {
let key = keys[i]
nextTransition = transition[key]
if (!nextTransition) {
nextTransition = transition[key] = Object.create(null)
newTransitions++
}
transition = nextTransition
}
if (objectOffset + start + 1 == position) {
// first key, so we don't need to insert, we can just write record directly
position--
newRecord(transition, keys, newTransitions)
} else // otherwise we need to insert the record, moving existing data after the record
insertNewRecord(transition, keys, objectOffset, newTransitions)
wroteKeys = true
transition = lastTransition[key]
}
pack(object[key])
}
}
if (!wroteKeys) {
let recordId = transition[RECORD_SYMBOL]
if (recordId)
target[objectOffset + start] = recordId
else
insertNewRecord(transition, Object.keys(object), objectOffset, 0)
}
} :
(object, safePrototype) => {
let nextTransition, transition = structures.transitions || (structures.transitions = Object.create(null))
let newTransitions = 0
for (let key in object) if (safePrototype || object.hasOwnProperty(key)) {
nextTransition = transition[key]
if (!nextTransition) {
nextTransition = transition[key] = Object.create(null)
newTransitions++
}
transition = nextTransition
}
let recordId = transition[RECORD_SYMBOL]
if (recordId) {
if (recordId >= 0x60 && useTwoByteRecords) {
target[position++] = ((recordId -= 0x60) & 0x1f) + 0x60
target[position++] = recordId >> 5
} else
target[position++] = recordId
} else {
newRecord(transition, transition.__keys__ || Object.keys(object), newTransitions)
}
// now write the values
for (let key in object)
if (safePrototype || object.hasOwnProperty(key))
pack(object[key])
}
const makeRoom = (end) => {
let newSize
if (end > 0x1000000) {
// special handling for really large buffers
if ((end - start) > MAX_BUFFER_SIZE)
throw new Error('Packed buffer would be larger than maximum buffer size')
newSize = Math.min(MAX_BUFFER_SIZE,
Math.round(Math.max((end - start) * (end > 0x4000000 ? 1.25 : 2), 0x400000) / 0x1000) * 0x1000)
} else // faster handling for smaller buffers
newSize = ((Math.max((end - start) << 2, target.length - 1) >> 12) + 1) << 12
let newBuffer = new ByteArrayAllocate(newSize)
targetView = new DataView(newBuffer.buffer, 0, newSize)
end = Math.min(end, target.length)
if (target.copy)
target.copy(newBuffer, 0, start, end)
else
newBuffer.set(target.slice(start, end))
position -= start
start = 0
safeEnd = newBuffer.length - 10
return target = newBuffer
}
const newRecord = (transition, keys, newTransitions) => {
let recordId = structures.nextId
if (!recordId)
recordId = 0x40
if (recordId < sharedLimitId && this.shouldShareStructure && !this.shouldShareStructure(keys)) {
recordId = structures.nextOwnId
if (!(recordId < maxStructureId))
recordId = sharedLimitId
structures.nextOwnId = recordId + 1
} else {
if (recordId >= maxStructureId)// cycle back around
recordId = sharedLimitId
structures.nextId = recordId + 1
}
let highByte = keys.highByte = recordId >= 0x60 && useTwoByteRecords ? (recordId - 0x60) >> 5 : -1
transition[RECORD_SYMBOL] = recordId
transition.__keys__ = keys
structures[recordId - 0x40] = keys
if (recordId < sharedLimitId) {
keys.isShared = true
structures.sharedLength = recordId - 0x3f
hasSharedUpdate = true
if (highByte >= 0) {
target[position++] = (recordId & 0x1f) + 0x60
target[position++] = highByte
} else {
target[position++] = recordId
}
} else {
if (highByte >= 0) {
target[position++] = 0xd5 // fixext 2
target[position++] = 0x72 // "r" record defintion extension type
target[position++] = (recordId & 0x1f) + 0x60
target[position++] = highByte
} else {
target[position++] = 0xd4 // fixext 1
target[position++] = 0x72 // "r" record defintion extension type
target[position++] = recordId
}
if (newTransitions)
transitionsCount += serializationsSinceTransitionRebuild * newTransitions
// record the removal of the id, we can maintain our shared structure
if (recordIdsToRemove.length >= maxOwnStructures)
recordIdsToRemove.shift()[RECORD_SYMBOL] = 0 // we are cycling back through, and have to remove old ones
recordIdsToRemove.push(transition)
pack(keys)
}
}
const insertNewRecord = (transition, keys, insertionOffset, newTransitions) => {
let mainTarget = target
let mainPosition = position
let mainSafeEnd = safeEnd
let mainStart = start
target = keysTarget
position = 0
start = 0
if (!target)
keysTarget = target = new ByteArrayAllocate(8192)
safeEnd = target.length - 10
newRecord(transition, keys, newTransitions)
keysTarget = target
let keysPosition = position
target = mainTarget
position = mainPosition
safeEnd = mainSafeEnd
start = mainStart
if (keysPosition > 1) {
let newEnd = position + keysPosition - 1
if (newEnd > safeEnd)
makeRoom(newEnd)
let insertionPosition = insertionOffset + start
target.copyWithin(insertionPosition + keysPosition, insertionPosition + 1, position)
target.set(keysTarget.slice(0, keysPosition), insertionPosition)
position = newEnd
} else {
target[insertionOffset + start] = keysTarget[0]
}
}
}
useBuffer(buffer) {
// this means we are finished using our own buffer and we can write over it safely
target = buffer
targetView = new DataView(target.buffer, target.byteOffset, target.byteLength)
position = 0
}
clearSharedData() {
if (this.structures)
this.structures = []
}
}
function copyBinary(source, target, targetOffset, offset, endOffset) {
while (offset < endOffset) {
target[targetOffset++] = source[offset++]
}
}
extensionClasses = [ Date, Set, Error, RegExp, ArrayBuffer, Object.getPrototypeOf(Uint8Array.prototype).constructor /*TypedArray*/, C1Type ]
extensions = [{
pack(date, allocateForWrite, pack) {
let seconds = date.getTime() / 1000
if ((this.useTimestamp32 || date.getMilliseconds() === 0) && seconds >= 0 && seconds < 0x100000000) {
// Timestamp 32
let { target, targetView, position} = allocateForWrite(6)
target[position++] = 0xd6
target[position++] = 0xff
targetView.setUint32(position, seconds)
} else if (seconds > 0 && seconds < 0x100000000) {
// Timestamp 64
let { target, targetView, position} = allocateForWrite(10)
target[position++] = 0xd7
target[position++] = 0xff
targetView.setUint32(position, date.getMilliseconds() * 4000000 + ((seconds / 1000 / 0x100000000) >> 0))
targetView.setUint32(position + 4, seconds)
} else if (isNaN(seconds)) {
if (this.onInvalidDate) {
allocateForWrite(0)
return pack(this.onInvalidDate())
}
// Intentionally invalid timestamp
let { target, targetView, position} = allocateForWrite(3)
target[position++] = 0xd4
target[position++] = 0xff
target[position++] = 0xff
} else {
// Timestamp 96
let { target, targetView, position} = allocateForWrite(15)
target[position++] = 0xc7
target[position++] = 12
target[position++] = 0xff
targetView.setUint32(position, date.getMilliseconds() * 1000000)
targetView.setBigInt64(position + 4, BigInt(Math.floor(seconds)))
}
}
}, {
pack(set, allocateForWrite, pack) {
let array = Array.from(set)
let { target, position} = allocateForWrite(this.moreTypes ? 3 : 0)
if (this.moreTypes) {
target[position++] = 0xd4
target[position++] = 0x73 // 's' for Set
target[position++] = 0
}
pack(array)
}
}, {
pack(error, allocateForWrite, pack) {
let { target, position} = allocateForWrite(this.moreTypes ? 3 : 0)
if (this.moreTypes) {
target[position++] = 0xd4
target[position++] = 0x65 // 'e' for error
target[position++] = 0
}
pack([ error.name, error.message ])
}
}, {
pack(regex, allocateForWrite, pack) {
let { target, position} = allocateForWrite(this.moreTypes ? 3 : 0)
if (this.moreTypes) {
target[position++] = 0xd4
target[position++] = 0x78 // 'x' for regeXp
target[position++] = 0
}
pack([ regex.source, regex.flags ])
}
}, {
pack(arrayBuffer, allocateForWrite) {
if (this.moreTypes)
writeExtBuffer(arrayBuffer, 0x10, allocateForWrite)
else
writeBuffer(hasNodeBuffer ? Buffer.from(arrayBuffer) : new Uint8Array(arrayBuffer), allocateForWrite)
}
}, {
pack(typedArray, allocateForWrite) {
let constructor = typedArray.constructor
if (constructor !== ByteArray && this.moreTypes)
writeExtBuffer(typedArray, typedArrays.indexOf(constructor.name), allocateForWrite)
else
writeBuffer(typedArray, allocateForWrite)
}
}, {
pack(c1, allocateForWrite) { // specific 0xC1 object
let { target, position} = allocateForWrite(1)
target[position] = 0xc1
}
}]
function writeExtBuffer(typedArray, type, allocateForWrite, encode) {
let length = typedArray.byteLength
if (length + 1 < 0x100) {
var { target, position } = allocateForWrite(4 + length)
target[position++] = 0xc7
target[position++] = length + 1
} else if (length + 1 < 0x10000) {
var { target, position } = allocateForWrite(5 + length)
target[position++] = 0xc8
target[position++] = (length + 1) >> 8
target[position++] = (length + 1) & 0xff
} else {
var { target, position, targetView } = allocateForWrite(7 + length)
target[position++] = 0xc9
targetView.setUint32(position, length + 1) // plus one for the type byte
position += 4
}
target[position++] = 0x74 // "t" for typed array
target[position++] = type
target.set(new Uint8Array(typedArray.buffer, typedArray.byteOffset, typedArray.byteLength), position)
}
function writeBuffer(buffer, allocateForWrite) {
let length = buffer.byteLength
var target, position
if (length < 0x100) {
var { target, position } = allocateForWrite(length + 2)
target[position++] = 0xc4
target[position++] = length
} else if (length < 0x10000) {
var { target, position } = allocateForWrite(length + 3)
target[position++] = 0xc5
target[position++] = length >> 8
target[position++] = length & 0xff
} else {
var { target, position, targetView } = allocateForWrite(length + 5)
target[position++] = 0xc6
targetView.setUint32(position, length)
position += 4
}
target.set(buffer, position)
}
function writeExtensionData(result, target, position, type) {
let length = result.length
switch (length) {
case 1:
target[position++] = 0xd4
break
case 2:
target[position++] = 0xd5
break
case 4:
target[position++] = 0xd6
break
case 8:
target[position++] = 0xd7
break
case 16:
target[position++] = 0xd8
break
default:
if (length < 0x100) {
target[position++] = 0xc7
target[position++] = length
} else if (length < 0x10000) {
target[position++] = 0xc8
target[position++] = length >> 8
target[position++] = length & 0xff
} else {
target[position++] = 0xc9
target[position++] = length >> 24
target[position++] = (length >> 16) & 0xff
target[position++] = (length >> 8) & 0xff
target[position++] = length & 0xff
}
}
target[position++] = type
target.set(result, position)
position += length
return position
}
function insertIds(serialized, idsToInsert) {
// insert the ids that need to be referenced for structured clones
let nextId
let distanceToMove = idsToInsert.length * 6
let lastEnd = serialized.length - distanceToMove
idsToInsert.sort((a, b) => a.offset > b.offset ? 1 : -1)
while (nextId = idsToInsert.pop()) {
let offset = nextId.offset
let id = nextId.id
serialized.copyWithin(offset + distanceToMove, offset, lastEnd)
distanceToMove -= 6
let position = offset + distanceToMove
serialized[position++] = 0xd6
serialized[position++] = 0x69 // 'i'
serialized[position++] = id >> 24
serialized[position++] = (id >> 16) & 0xff
serialized[position++] = (id >> 8) & 0xff
serialized[position++] = id & 0xff
lastEnd = offset
}
return serialized
}
function writeBundles(start, pack) {
if (bundledStrings.length > 0) {
targetView.setUint32(bundledStrings.position + start, position - bundledStrings.position - start)
let writeStrings = bundledStrings
bundledStrings = null
let startPosition = position
pack(writeStrings[0])
pack(writeStrings[1])
}
}
export function addExtension(extension) {
if (extension.Class) {
if (!extension.pack && !extension.write)
throw new Error('Extension has no pack or write function')
if (extension.pack && !extension.type)
throw new Error('Extension has no type (numeric code to identify the extension)')
extensionClasses.unshift(extension.Class)
extensions.unshift(extension)
}
unpackAddExtension(extension)
}
let defaultPackr = new Packr({ useRecords: false })
export const pack = defaultPackr.pack
export const encode = defaultPackr.pack
export const Encoder = Packr
export { FLOAT32_OPTIONS } from './unpack.js'
import { FLOAT32_OPTIONS } from './unpack.js'
export const { NEVER, ALWAYS, DECIMAL_ROUND, DECIMAL_FIT } = FLOAT32_OPTIONS
export const REUSE_BUFFER_MODE = 512
export const RESET_BUFFER_MODE = 1024