unenv
Version:
`unenv` is a framework-agnostic system that allows converting JavaScript code to be platform agnostic and work in any environment including Browsers, Workers, Node.js, or JavaScript runtime.
1,759 lines (1,758 loc) • 52.2 kB
JavaScript
/*!
* The buffer module from node.js, for the browser.
*
* @author Feross Aboukhadijeh <https://feross.org>
* @license MIT
*/
import * as base64 from "./_base64.mjs";
import * as ieee754 from "./_ieee754.mjs";
const customInspectSymbol = typeof Symbol === "function" && typeof Symbol["for"] === "function" ? Symbol["for"]("nodejs.util.inspect.custom") : null;
export const INSPECT_MAX_BYTES = 50;
const K_MAX_LENGTH = 2147483647;
export const kMaxLength = K_MAX_LENGTH;
Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport();
if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== "undefined" && typeof console.error === "function") {
console.error(
"This environment lacks typed array (Uint8Array) support which is required by `buffer` v5.x. Use `buffer` v4.x if you require old browser support."
);
}
function typedArraySupport() {
try {
const arr = new Uint8Array(1);
const proto = {
foo: function() {
return 42;
}
};
Object.setPrototypeOf(proto, Uint8Array.prototype);
Object.setPrototypeOf(arr, proto);
return arr.foo() === 42;
} catch {
return false;
}
}
Object.defineProperty(Buffer.prototype, "parent", {
enumerable: true,
get: function() {
if (!Buffer.isBuffer(this)) {
return;
}
return this.buffer;
}
});
Object.defineProperty(Buffer.prototype, "offset", {
enumerable: true,
get: function() {
if (!Buffer.isBuffer(this)) {
return;
}
return this.byteOffset;
}
});
function createBuffer(length) {
if (length > K_MAX_LENGTH) {
throw new RangeError(
'The value "' + length + '" is invalid for option "size"'
);
}
const buf = new Uint8Array(length);
Object.setPrototypeOf(buf, Buffer.prototype);
return buf;
}
export function Buffer(arg, encodingOrOffset, length) {
if (typeof arg === "number") {
if (typeof encodingOrOffset === "string") {
throw new TypeError(
'The "string" argument must be of type string. Received type number'
);
}
return allocUnsafe(arg);
}
return from(arg, encodingOrOffset, length);
}
Buffer.poolSize = 8192;
function from(value, encodingOrOffset, length) {
if (typeof value === "string") {
return fromString(value, encodingOrOffset);
}
if (ArrayBuffer.isView(value)) {
return fromArrayView(value);
}
if (value == null) {
throw new TypeError(
"The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type " + typeof value
);
}
if (isInstance(value, ArrayBuffer) || value && isInstance(value.buffer, ArrayBuffer)) {
return fromArrayBuffer(value, encodingOrOffset, length);
}
if (typeof SharedArrayBuffer !== "undefined" && (isInstance(value, SharedArrayBuffer) || value && isInstance(value.buffer, SharedArrayBuffer))) {
return fromArrayBuffer(value, encodingOrOffset, length);
}
if (typeof value === "number") {
throw new TypeError(
'The "value" argument must not be of type number. Received type number'
);
}
const valueOf = value.valueOf && value.valueOf();
if (valueOf != null && valueOf !== value) {
return Buffer.from(valueOf, encodingOrOffset, length);
}
const b = fromObject(value);
if (b) {
return b;
}
if (typeof Symbol !== "undefined" && Symbol.toPrimitive != null && typeof value[Symbol.toPrimitive] === "function") {
return Buffer.from(
value[Symbol.toPrimitive]("string"),
encodingOrOffset,
length
);
}
throw new TypeError(
"The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type " + typeof value
);
}
Buffer.from = function(value, encodingOrOffset, length) {
return from(value, encodingOrOffset, length);
};
Object.setPrototypeOf(Buffer.prototype, Uint8Array.prototype);
Object.setPrototypeOf(Buffer, Uint8Array);
function assertSize(size) {
if (typeof size !== "number") {
throw new TypeError('"size" argument must be of type number');
} else if (size < 0) {
throw new RangeError(
'The value "' + size + '" is invalid for option "size"'
);
}
}
function alloc(size, fill2, encoding) {
assertSize(size);
if (size <= 0) {
return createBuffer(size);
}
if (fill2 !== void 0) {
return typeof encoding === "string" ? createBuffer(size).fill(fill2, encoding) : createBuffer(size).fill(fill2);
}
return createBuffer(size);
}
Buffer.alloc = function(size, fill2, encoding) {
return alloc(size, fill2, encoding);
};
function allocUnsafe(size) {
assertSize(size);
return createBuffer(size < 0 ? 0 : checked(size) | 0);
}
Buffer.allocUnsafe = function(size) {
return allocUnsafe(size);
};
Buffer.allocUnsafeSlow = function(size) {
return allocUnsafe(size);
};
function fromString(string, encoding) {
if (typeof encoding !== "string" || encoding === "") {
encoding = "utf8";
}
if (!Buffer.isEncoding(encoding)) {
throw new TypeError("Unknown encoding: " + encoding);
}
const length = byteLength(string, encoding) | 0;
let buf = createBuffer(length);
const actual = buf.write(string, encoding);
if (actual !== length) {
buf = buf.slice(0, actual);
}
return buf;
}
function fromArrayLike(array) {
const length = array.length < 0 ? 0 : checked(array.length) | 0;
const buf = createBuffer(length);
for (let i = 0; i < length; i += 1) {
buf[i] = array[i] & 255;
}
return buf;
}
function fromArrayView(arrayView) {
if (isInstance(arrayView, Uint8Array)) {
const copy2 = new Uint8Array(arrayView);
return fromArrayBuffer(copy2.buffer, copy2.byteOffset, copy2.byteLength);
}
return fromArrayLike(arrayView);
}
function fromArrayBuffer(array, byteOffset, length) {
if (byteOffset < 0 || array.byteLength < byteOffset) {
throw new RangeError('"offset" is outside of buffer bounds');
}
if (array.byteLength < byteOffset + (length || 0)) {
throw new RangeError('"length" is outside of buffer bounds');
}
let buf;
if (byteOffset === void 0 && length === void 0) {
buf = new Uint8Array(array);
} else if (length === void 0) {
buf = new Uint8Array(array, byteOffset);
} else {
buf = new Uint8Array(array, byteOffset, length);
}
Object.setPrototypeOf(buf, Buffer.prototype);
return buf;
}
function fromObject(obj) {
if (Buffer.isBuffer(obj)) {
const len = checked(obj.length) | 0;
const buf = createBuffer(len);
if (buf.length === 0) {
return buf;
}
obj.copy(buf, 0, 0, len);
return buf;
}
if (obj.length !== void 0) {
if (typeof obj.length !== "number" || numberIsNaN(obj.length)) {
return createBuffer(0);
}
return fromArrayLike(obj);
}
if (obj.type === "Buffer" && Array.isArray(obj.data)) {
return fromArrayLike(obj.data);
}
}
function checked(length) {
if (length >= K_MAX_LENGTH) {
throw new RangeError(
"Attempt to allocate Buffer larger than maximum size: 0x" + K_MAX_LENGTH.toString(16) + " bytes"
);
}
return length | 0;
}
export function SlowBuffer(length) {
if (+length != length) {
length = 0;
}
return Buffer.alloc(+length);
}
Buffer.isBuffer = function isBuffer(b) {
return b != null && b._isBuffer === true && b !== Buffer.prototype;
};
Buffer.compare = function compare(a, b) {
if (isInstance(a, Uint8Array)) {
a = Buffer.from(a, a.offset, a.byteLength);
}
if (isInstance(b, Uint8Array)) {
b = Buffer.from(b, b.offset, b.byteLength);
}
if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
throw new TypeError(
'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
);
}
if (a === b) {
return 0;
}
let x = a.length;
let y = b.length;
for (let i = 0, len = Math.min(x, y); i < len; ++i) {
if (a[i] !== b[i]) {
x = a[i];
y = b[i];
break;
}
}
if (x < y) {
return -1;
}
if (y < x) {
return 1;
}
return 0;
};
Buffer.isEncoding = function isEncoding(encoding) {
switch (String(encoding).toLowerCase()) {
case "hex":
case "utf8":
case "utf-8":
case "ascii":
case "latin1":
case "binary":
case "base64":
case "ucs2":
case "ucs-2":
case "utf16le":
case "utf-16le":
return true;
default:
return false;
}
};
Buffer.concat = function concat(list, length) {
if (!Array.isArray(list)) {
throw new TypeError('"list" argument must be an Array of Buffers');
}
if (list.length === 0) {
return Buffer.alloc(0);
}
let i;
if (length === void 0) {
length = 0;
for (i = 0; i < list.length; ++i) {
length += list[i].length;
}
}
const buffer = Buffer.allocUnsafe(length);
let pos = 0;
for (i = 0; i < list.length; ++i) {
let buf = list[i];
if (isInstance(buf, Uint8Array)) {
if (pos + buf.length > buffer.length) {
if (!Buffer.isBuffer(buf)) {
buf = Buffer.from(buf.buffer, buf.byteOffset, buf.byteLength);
}
buf.copy(buffer, pos);
} else {
Uint8Array.prototype.set.call(buffer, buf, pos);
}
} else if (Buffer.isBuffer(buf)) {
buf.copy(buffer, pos);
} else {
throw new TypeError('"list" argument must be an Array of Buffers');
}
pos += buf.length;
}
return buffer;
};
function byteLength(string, encoding) {
if (Buffer.isBuffer(string)) {
return string.length;
}
if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
return string.byteLength;
}
if (typeof string !== "string") {
throw new TypeError(
'The "string" argument must be one of type string, Buffer, or ArrayBuffer. Received type ' + typeof string
);
}
const len = string.length;
const mustMatch = arguments.length > 2 && arguments[2] === true;
if (!mustMatch && len === 0) {
return 0;
}
let loweredCase = false;
for (; ; ) {
switch (encoding) {
case "ascii":
case "latin1":
case "binary":
return len;
case "utf8":
case "utf-8":
return utf8ToBytes(string).length;
case "ucs2":
case "ucs-2":
case "utf16le":
case "utf-16le":
return len * 2;
case "hex":
return len >>> 1;
case "base64":
return base64ToBytes(string).length;
default:
if (loweredCase) {
return mustMatch ? -1 : utf8ToBytes(string).length;
}
encoding = ("" + encoding).toLowerCase();
loweredCase = true;
}
}
}
Buffer.byteLength = byteLength;
function slowToString(encoding, start, end) {
let loweredCase = false;
if (start === void 0 || start < 0) {
start = 0;
}
if (start > this.length) {
return "";
}
if (end === void 0 || end > this.length) {
end = this.length;
}
if (end <= 0) {
return "";
}
end >>>= 0;
start >>>= 0;
if (end <= start) {
return "";
}
if (!encoding) {
encoding = "utf8";
}
while (true) {
switch (encoding) {
case "hex":
return hexSlice(this, start, end);
case "utf8":
case "utf-8":
return utf8Slice(this, start, end);
case "ascii":
return asciiSlice(this, start, end);
case "latin1":
case "binary":
return latin1Slice(this, start, end);
case "base64":
return base64Slice(this, start, end);
case "ucs2":
case "ucs-2":
case "utf16le":
case "utf-16le":
return utf16leSlice(this, start, end);
default:
if (loweredCase) {
throw new TypeError("Unknown encoding: " + encoding);
}
encoding = (encoding + "").toLowerCase();
loweredCase = true;
}
}
}
Buffer.prototype._isBuffer = true;
function swap(b, n, m) {
const i = b[n];
b[n] = b[m];
b[m] = i;
}
Buffer.prototype.swap16 = function swap16() {
const len = this.length;
if (len % 2 !== 0) {
throw new RangeError("Buffer size must be a multiple of 16-bits");
}
for (let i = 0; i < len; i += 2) {
swap(this, i, i + 1);
}
return this;
};
Buffer.prototype.swap32 = function swap32() {
const len = this.length;
if (len % 4 !== 0) {
throw new RangeError("Buffer size must be a multiple of 32-bits");
}
for (let i = 0; i < len; i += 4) {
swap(this, i, i + 3);
swap(this, i + 1, i + 2);
}
return this;
};
Buffer.prototype.swap64 = function swap64() {
const len = this.length;
if (len % 8 !== 0) {
throw new RangeError("Buffer size must be a multiple of 64-bits");
}
for (let i = 0; i < len; i += 8) {
swap(this, i, i + 7);
swap(this, i + 1, i + 6);
swap(this, i + 2, i + 5);
swap(this, i + 3, i + 4);
}
return this;
};
Buffer.prototype.toString = function toString() {
const length = this.length;
if (length === 0) {
return "";
}
if (arguments.length === 0) {
return utf8Slice(this, 0, length);
}
return Reflect.apply(slowToString, this, arguments);
};
Buffer.prototype.toLocaleString = Buffer.prototype.toString;
Buffer.prototype.equals = function equals(b) {
if (!Buffer.isBuffer(b)) {
throw new TypeError("Argument must be a Buffer");
}
if (this === b) {
return true;
}
return Buffer.compare(this, b) === 0;
};
Buffer.prototype.inspect = function inspect() {
let str = "";
const max = INSPECT_MAX_BYTES;
str = this.toString("hex", 0, max).replace(/(.{2})/g, "$1 ").trim();
if (this.length > max) {
str += " ... ";
}
return "<Buffer " + str + ">";
};
if (customInspectSymbol) {
Buffer.prototype[customInspectSymbol] = Buffer.prototype.inspect;
}
Buffer.prototype.compare = function compare2(target, start, end, thisStart, thisEnd) {
if (isInstance(target, Uint8Array)) {
target = Buffer.from(target, target.offset, target.byteLength);
}
if (!Buffer.isBuffer(target)) {
throw new TypeError(
'The "target" argument must be one of type Buffer or Uint8Array. Received type ' + typeof target
);
}
if (start === void 0) {
start = 0;
}
if (end === void 0) {
end = target ? target.length : 0;
}
if (thisStart === void 0) {
thisStart = 0;
}
if (thisEnd === void 0) {
thisEnd = this.length;
}
if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
throw new RangeError("out of range index");
}
if (thisStart >= thisEnd && start >= end) {
return 0;
}
if (thisStart >= thisEnd) {
return -1;
}
if (start >= end) {
return 1;
}
start >>>= 0;
end >>>= 0;
thisStart >>>= 0;
thisEnd >>>= 0;
if (this === target) {
return 0;
}
let x = thisEnd - thisStart;
let y = end - start;
const len = Math.min(x, y);
const thisCopy = this.slice(thisStart, thisEnd);
const targetCopy = target.slice(start, end);
for (let i = 0; i < len; ++i) {
if (thisCopy[i] !== targetCopy[i]) {
x = thisCopy[i];
y = targetCopy[i];
break;
}
}
if (x < y) {
return -1;
}
if (y < x) {
return 1;
}
return 0;
};
function bidirectionalIndexOf(buffer, val, byteOffset, encoding, dir) {
if (buffer.length === 0) {
return -1;
}
if (typeof byteOffset === "string") {
encoding = byteOffset;
byteOffset = 0;
} else if (byteOffset > 2147483647) {
byteOffset = 2147483647;
} else if (byteOffset < -2147483648) {
byteOffset = -2147483648;
}
byteOffset = +byteOffset;
if (numberIsNaN(byteOffset)) {
byteOffset = dir ? 0 : buffer.length - 1;
}
if (byteOffset < 0) {
byteOffset = buffer.length + byteOffset;
}
if (byteOffset >= buffer.length) {
if (dir) {
return -1;
} else {
byteOffset = buffer.length - 1;
}
} else if (byteOffset < 0) {
if (dir) {
byteOffset = 0;
} else {
return -1;
}
}
if (typeof val === "string") {
val = Buffer.from(val, encoding);
}
if (Buffer.isBuffer(val)) {
if (val.length === 0) {
return -1;
}
return arrayIndexOf(buffer, val, byteOffset, encoding, dir);
} else if (typeof val === "number") {
val = val & 255;
if (typeof Uint8Array.prototype.indexOf === "function") {
return dir ? Uint8Array.prototype.indexOf.call(buffer, val, byteOffset) : Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset);
}
return arrayIndexOf(buffer, [val], byteOffset, encoding, dir);
}
throw new TypeError("val must be string, number or Buffer");
}
function arrayIndexOf(arr, val, byteOffset, encoding, dir) {
let indexSize = 1;
let arrLength = arr.length;
let valLength = val.length;
if (encoding !== void 0) {
encoding = String(encoding).toLowerCase();
if (encoding === "ucs2" || encoding === "ucs-2" || encoding === "utf16le" || encoding === "utf-16le") {
if (arr.length < 2 || val.length < 2) {
return -1;
}
indexSize = 2;
arrLength /= 2;
valLength /= 2;
byteOffset /= 2;
}
}
function read(buf, i2) {
return indexSize === 1 ? buf[i2] : buf.readUInt16BE(i2 * indexSize);
}
let i;
if (dir) {
let foundIndex = -1;
for (i = byteOffset; i < arrLength; i++) {
if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
if (foundIndex === -1) {
foundIndex = i;
}
if (i - foundIndex + 1 === valLength) {
return foundIndex * indexSize;
}
} else {
if (foundIndex !== -1) {
i -= i - foundIndex;
}
foundIndex = -1;
}
}
} else {
if (byteOffset + valLength > arrLength) {
byteOffset = arrLength - valLength;
}
for (i = byteOffset; i >= 0; i--) {
let found = true;
for (let j = 0; j < valLength; j++) {
if (read(arr, i + j) !== read(val, j)) {
found = false;
break;
}
}
if (found) {
return i;
}
}
}
return -1;
}
Buffer.prototype.includes = function includes(val, byteOffset, encoding) {
return this.indexOf(val, byteOffset, encoding) !== -1;
};
Buffer.prototype.indexOf = function indexOf(val, byteOffset, encoding) {
return bidirectionalIndexOf(this, val, byteOffset, encoding, true);
};
Buffer.prototype.lastIndexOf = function lastIndexOf(val, byteOffset, encoding) {
return bidirectionalIndexOf(this, val, byteOffset, encoding, false);
};
function hexWrite(buf, string, offset, length) {
offset = Number(offset) || 0;
const remaining = buf.length - offset;
if (length) {
length = Number(length);
if (length > remaining) {
length = remaining;
}
} else {
length = remaining;
}
const strLen = string.length;
if (length > strLen / 2) {
length = strLen / 2;
}
let i;
for (i = 0; i < length; ++i) {
const parsed = Number.parseInt(string.slice(i * 2, i * 2 + 2), 16);
if (numberIsNaN(parsed)) {
return i;
}
buf[offset + i] = parsed;
}
return i;
}
function utf8Write(buf, string, offset, length) {
return blitBuffer(
utf8ToBytes(string, buf.length - offset),
buf,
offset,
length
);
}
function asciiWrite(buf, string, offset, length) {
return blitBuffer(asciiToBytes(string), buf, offset, length);
}
function base64Write(buf, string, offset, length) {
return blitBuffer(base64ToBytes(string), buf, offset, length);
}
function ucs2Write(buf, string, offset, length) {
return blitBuffer(
utf16leToBytes(string, buf.length - offset),
buf,
offset,
length
);
}
Buffer.prototype.write = function write(string, offset, length, encoding) {
if (offset === void 0) {
encoding = "utf8";
length = this.length;
offset = 0;
} else if (length === void 0 && typeof offset === "string") {
encoding = offset;
length = this.length;
offset = 0;
} else if (Number.isFinite(offset)) {
offset = offset >>> 0;
if (Number.isFinite(length)) {
length = length >>> 0;
if (encoding === void 0) {
encoding = "utf8";
}
} else {
encoding = length;
length = void 0;
}
} else {
throw new TypeError(
"Buffer.write(string, encoding, offset[, length]) is no longer supported"
);
}
const remaining = this.length - offset;
if (length === void 0 || length > remaining) {
length = remaining;
}
if (string.length > 0 && (length < 0 || offset < 0) || offset > this.length) {
throw new RangeError("Attempt to write outside buffer bounds");
}
if (!encoding) {
encoding = "utf8";
}
let loweredCase = false;
for (; ; ) {
switch (encoding) {
case "hex":
return hexWrite(this, string, offset, length);
case "utf8":
case "utf-8":
return utf8Write(this, string, offset, length);
case "ascii":
case "latin1":
case "binary":
return asciiWrite(this, string, offset, length);
case "base64":
return base64Write(this, string, offset, length);
case "ucs2":
case "ucs-2":
case "utf16le":
case "utf-16le":
return ucs2Write(this, string, offset, length);
default:
if (loweredCase) {
throw new TypeError("Unknown encoding: " + encoding);
}
encoding = ("" + encoding).toLowerCase();
loweredCase = true;
}
}
};
Buffer.prototype.toJSON = function toJSON() {
return {
type: "Buffer",
data: Array.prototype.slice.call(this._arr || this, 0)
};
};
function base64Slice(buf, start, end) {
return start === 0 && end === buf.length ? base64.fromByteArray(buf) : base64.fromByteArray(buf.slice(start, end));
}
function utf8Slice(buf, start, end) {
end = Math.min(buf.length, end);
const res = [];
let i = start;
while (i < end) {
const firstByte = buf[i];
let codePoint = null;
let bytesPerSequence = firstByte > 239 ? 4 : firstByte > 223 ? 3 : firstByte > 191 ? 2 : 1;
if (i + bytesPerSequence <= end) {
let secondByte, thirdByte, fourthByte, tempCodePoint;
switch (bytesPerSequence) {
case 1:
if (firstByte < 128) {
codePoint = firstByte;
}
break;
case 2:
secondByte = buf[i + 1];
if ((secondByte & 192) === 128) {
tempCodePoint = (firstByte & 31) << 6 | secondByte & 63;
if (tempCodePoint > 127) {
codePoint = tempCodePoint;
}
}
break;
case 3:
secondByte = buf[i + 1];
thirdByte = buf[i + 2];
if ((secondByte & 192) === 128 && (thirdByte & 192) === 128) {
tempCodePoint = (firstByte & 15) << 12 | (secondByte & 63) << 6 | thirdByte & 63;
if (tempCodePoint > 2047 && (tempCodePoint < 55296 || tempCodePoint > 57343)) {
codePoint = tempCodePoint;
}
}
break;
case 4:
secondByte = buf[i + 1];
thirdByte = buf[i + 2];
fourthByte = buf[i + 3];
if ((secondByte & 192) === 128 && (thirdByte & 192) === 128 && (fourthByte & 192) === 128) {
tempCodePoint = (firstByte & 15) << 18 | (secondByte & 63) << 12 | (thirdByte & 63) << 6 | fourthByte & 63;
if (tempCodePoint > 65535 && tempCodePoint < 1114112) {
codePoint = tempCodePoint;
}
}
}
}
if (codePoint === null) {
codePoint = 65533;
bytesPerSequence = 1;
} else if (codePoint > 65535) {
codePoint -= 65536;
res.push(codePoint >>> 10 & 1023 | 55296);
codePoint = 56320 | codePoint & 1023;
}
res.push(codePoint);
i += bytesPerSequence;
}
return decodeCodePointsArray(res);
}
const MAX_ARGUMENTS_LENGTH = 4096;
function decodeCodePointsArray(codePoints) {
const len = codePoints.length;
if (len <= MAX_ARGUMENTS_LENGTH) {
return String.fromCharCode.apply(String, codePoints);
}
let res = "";
let i = 0;
while (i < len) {
res += String.fromCharCode.apply(
String,
codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
);
}
return res;
}
function asciiSlice(buf, start, end) {
let ret = "";
end = Math.min(buf.length, end);
for (let i = start; i < end; ++i) {
ret += String.fromCharCode(buf[i] & 127);
}
return ret;
}
function latin1Slice(buf, start, end) {
let ret = "";
end = Math.min(buf.length, end);
for (let i = start; i < end; ++i) {
ret += String.fromCharCode(buf[i]);
}
return ret;
}
function hexSlice(buf, start, end) {
const len = buf.length;
if (!start || start < 0) {
start = 0;
}
if (!end || end < 0 || end > len) {
end = len;
}
let out = "";
for (let i = start; i < end; ++i) {
out += hexSliceLookupTable[buf[i]];
}
return out;
}
function utf16leSlice(buf, start, end) {
const bytes = buf.slice(start, end);
let res = "";
for (let i = 0; i < bytes.length - 1; i += 2) {
res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256);
}
return res;
}
Buffer.prototype.slice = function slice(start, end) {
const len = this.length;
start = Math.trunc(start);
end = end === void 0 ? len : Math.trunc(end);
if (start < 0) {
start += len;
if (start < 0) {
start = 0;
}
} else if (start > len) {
start = len;
}
if (end < 0) {
end += len;
if (end < 0) {
end = 0;
}
} else if (end > len) {
end = len;
}
if (end < start) {
end = start;
}
const newBuf = this.subarray(start, end);
Object.setPrototypeOf(newBuf, Buffer.prototype);
return newBuf;
};
function checkOffset(offset, ext, length) {
if (offset % 1 !== 0 || offset < 0) {
throw new RangeError("offset is not uint");
}
if (offset + ext > length) {
throw new RangeError("Trying to access beyond buffer length");
}
}
Buffer.prototype.readUintLE = Buffer.prototype.readUIntLE = function readUIntLE(offset, byteLength2, noAssert) {
offset = offset >>> 0;
byteLength2 = byteLength2 >>> 0;
if (!noAssert) {
checkOffset(offset, byteLength2, this.length);
}
let val = this[offset];
let mul = 1;
let i = 0;
while (++i < byteLength2 && (mul *= 256)) {
val += this[offset + i] * mul;
}
return val;
};
Buffer.prototype.readUintBE = Buffer.prototype.readUIntBE = function readUIntBE(offset, byteLength2, noAssert) {
offset = offset >>> 0;
byteLength2 = byteLength2 >>> 0;
if (!noAssert) {
checkOffset(offset, byteLength2, this.length);
}
let val = this[offset + --byteLength2];
let mul = 1;
while (byteLength2 > 0 && (mul *= 256)) {
val += this[offset + --byteLength2] * mul;
}
return val;
};
Buffer.prototype.readUint8 = Buffer.prototype.readUInt8 = function readUInt8(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) {
checkOffset(offset, 1, this.length);
}
return this[offset];
};
Buffer.prototype.readUint16LE = Buffer.prototype.readUInt16LE = function readUInt16LE(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) {
checkOffset(offset, 2, this.length);
}
return this[offset] | this[offset + 1] << 8;
};
Buffer.prototype.readUint16BE = Buffer.prototype.readUInt16BE = function readUInt16BE(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) {
checkOffset(offset, 2, this.length);
}
return this[offset] << 8 | this[offset + 1];
};
Buffer.prototype.readUint32LE = Buffer.prototype.readUInt32LE = function readUInt32LE(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) {
checkOffset(offset, 4, this.length);
}
return (this[offset] | this[offset + 1] << 8 | this[offset + 2] << 16) + this[offset + 3] * 16777216;
};
Buffer.prototype.readUint32BE = Buffer.prototype.readUInt32BE = function readUInt32BE(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) {
checkOffset(offset, 4, this.length);
}
return this[offset] * 16777216 + (this[offset + 1] << 16 | this[offset + 2] << 8 | this[offset + 3]);
};
Buffer.prototype.readBigUInt64LE = defineBigIntMethod(
function readBigUInt64LE(offset) {
offset = offset >>> 0;
validateNumber(offset, "offset");
const first = this[offset];
const last = this[offset + 7];
if (first === void 0 || last === void 0) {
boundsError(offset, this.length - 8);
}
const lo = first + this[++offset] * 2 ** 8 + this[++offset] * 2 ** 16 + this[++offset] * 2 ** 24;
const hi = this[++offset] + this[++offset] * 2 ** 8 + this[++offset] * 2 ** 16 + last * 2 ** 24;
return BigInt(lo) + (BigInt(hi) << BigInt(32));
}
);
Buffer.prototype.readBigUInt64BE = defineBigIntMethod(
function readBigUInt64BE(offset) {
offset = offset >>> 0;
validateNumber(offset, "offset");
const first = this[offset];
const last = this[offset + 7];
if (first === void 0 || last === void 0) {
boundsError(offset, this.length - 8);
}
const hi = first * 2 ** 24 + this[++offset] * 2 ** 16 + this[++offset] * 2 ** 8 + this[++offset];
const lo = this[++offset] * 2 ** 24 + this[++offset] * 2 ** 16 + this[++offset] * 2 ** 8 + last;
return (BigInt(hi) << BigInt(32)) + BigInt(lo);
}
);
Buffer.prototype.readIntLE = function readIntLE(offset, byteLength2, noAssert) {
offset = offset >>> 0;
byteLength2 = byteLength2 >>> 0;
if (!noAssert) {
checkOffset(offset, byteLength2, this.length);
}
let val = this[offset];
let mul = 1;
let i = 0;
while (++i < byteLength2 && (mul *= 256)) {
val += this[offset + i] * mul;
}
mul *= 128;
if (val >= mul) {
val -= Math.pow(2, 8 * byteLength2);
}
return val;
};
Buffer.prototype.readIntBE = function readIntBE(offset, byteLength2, noAssert) {
offset = offset >>> 0;
byteLength2 = byteLength2 >>> 0;
if (!noAssert) {
checkOffset(offset, byteLength2, this.length);
}
let i = byteLength2;
let mul = 1;
let val = this[offset + --i];
while (i > 0 && (mul *= 256)) {
val += this[offset + --i] * mul;
}
mul *= 128;
if (val >= mul) {
val -= Math.pow(2, 8 * byteLength2);
}
return val;
};
Buffer.prototype.readInt8 = function readInt8(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) {
checkOffset(offset, 1, this.length);
}
if (!(this[offset] & 128)) {
return this[offset];
}
return (255 - this[offset] + 1) * -1;
};
Buffer.prototype.readInt16LE = function readInt16LE(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) {
checkOffset(offset, 2, this.length);
}
const val = this[offset] | this[offset + 1] << 8;
return val & 32768 ? val | 4294901760 : val;
};
Buffer.prototype.readInt16BE = function readInt16BE(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) {
checkOffset(offset, 2, this.length);
}
const val = this[offset + 1] | this[offset] << 8;
return val & 32768 ? val | 4294901760 : val;
};
Buffer.prototype.readInt32LE = function readInt32LE(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) {
checkOffset(offset, 4, this.length);
}
return this[offset] | this[offset + 1] << 8 | this[offset + 2] << 16 | this[offset + 3] << 24;
};
Buffer.prototype.readInt32BE = function readInt32BE(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) {
checkOffset(offset, 4, this.length);
}
return this[offset] << 24 | this[offset + 1] << 16 | this[offset + 2] << 8 | this[offset + 3];
};
Buffer.prototype.readBigInt64LE = defineBigIntMethod(
function readBigInt64LE(offset) {
offset = offset >>> 0;
validateNumber(offset, "offset");
const first = this[offset];
const last = this[offset + 7];
if (first === void 0 || last === void 0) {
boundsError(offset, this.length - 8);
}
const val = this[offset + 4] + this[offset + 5] * 2 ** 8 + this[offset + 6] * 2 ** 16 + (last << 24);
return (BigInt(val) << BigInt(32)) + BigInt(
first + this[++offset] * 2 ** 8 + this[++offset] * 2 ** 16 + this[++offset] * 2 ** 24
);
}
);
Buffer.prototype.readBigInt64BE = defineBigIntMethod(
function readBigInt64BE(offset) {
offset = offset >>> 0;
validateNumber(offset, "offset");
const first = this[offset];
const last = this[offset + 7];
if (first === void 0 || last === void 0) {
boundsError(offset, this.length - 8);
}
const val = (first << 24) + // Overflow
this[++offset] * 2 ** 16 + this[++offset] * 2 ** 8 + this[++offset];
return (BigInt(val) << BigInt(32)) + BigInt(
this[++offset] * 2 ** 24 + this[++offset] * 2 ** 16 + this[++offset] * 2 ** 8 + last
);
}
);
Buffer.prototype.readFloatLE = function readFloatLE(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) {
checkOffset(offset, 4, this.length);
}
return ieee754.read(this, offset, true, 23, 4);
};
Buffer.prototype.readFloatBE = function readFloatBE(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) {
checkOffset(offset, 4, this.length);
}
return ieee754.read(this, offset, false, 23, 4);
};
Buffer.prototype.readDoubleLE = function readDoubleLE(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) {
checkOffset(offset, 8, this.length);
}
return ieee754.read(this, offset, true, 52, 8);
};
Buffer.prototype.readDoubleBE = function readDoubleBE(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) {
checkOffset(offset, 8, this.length);
}
return ieee754.read(this, offset, false, 52, 8);
};
function checkInt(buf, value, offset, ext, max, min) {
if (!Buffer.isBuffer(buf)) {
throw new TypeError('"buffer" argument must be a Buffer instance');
}
if (value > max || value < min) {
throw new RangeError('"value" argument is out of bounds');
}
if (offset + ext > buf.length) {
throw new RangeError("Index out of range");
}
}
Buffer.prototype.writeUintLE = Buffer.prototype.writeUIntLE = function writeUIntLE(value, offset, byteLength2, noAssert) {
value = +value;
offset = offset >>> 0;
byteLength2 = byteLength2 >>> 0;
if (!noAssert) {
const maxBytes = Math.pow(2, 8 * byteLength2) - 1;
checkInt(this, value, offset, byteLength2, maxBytes, 0);
}
let mul = 1;
let i = 0;
this[offset] = value & 255;
while (++i < byteLength2 && (mul *= 256)) {
this[offset + i] = value / mul & 255;
}
return offset + byteLength2;
};
Buffer.prototype.writeUintBE = Buffer.prototype.writeUIntBE = function writeUIntBE(value, offset, byteLength2, noAssert) {
value = +value;
offset = offset >>> 0;
byteLength2 = byteLength2 >>> 0;
if (!noAssert) {
const maxBytes = Math.pow(2, 8 * byteLength2) - 1;
checkInt(this, value, offset, byteLength2, maxBytes, 0);
}
let i = byteLength2 - 1;
let mul = 1;
this[offset + i] = value & 255;
while (--i >= 0 && (mul *= 256)) {
this[offset + i] = value / mul & 255;
}
return offset + byteLength2;
};
Buffer.prototype.writeUint8 = Buffer.prototype.writeUInt8 = function writeUInt8(value, offset, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
checkInt(this, value, offset, 1, 255, 0);
}
this[offset] = value & 255;
return offset + 1;
};
Buffer.prototype.writeUint16LE = Buffer.prototype.writeUInt16LE = function writeUInt16LE(value, offset, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
checkInt(this, value, offset, 2, 65535, 0);
}
this[offset] = value & 255;
this[offset + 1] = value >>> 8;
return offset + 2;
};
Buffer.prototype.writeUint16BE = Buffer.prototype.writeUInt16BE = function writeUInt16BE(value, offset, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
checkInt(this, value, offset, 2, 65535, 0);
}
this[offset] = value >>> 8;
this[offset + 1] = value & 255;
return offset + 2;
};
Buffer.prototype.writeUint32LE = Buffer.prototype.writeUInt32LE = function writeUInt32LE(value, offset, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
checkInt(this, value, offset, 4, 4294967295, 0);
}
this[offset + 3] = value >>> 24;
this[offset + 2] = value >>> 16;
this[offset + 1] = value >>> 8;
this[offset] = value & 255;
return offset + 4;
};
Buffer.prototype.writeUint32BE = Buffer.prototype.writeUInt32BE = function writeUInt32BE(value, offset, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
checkInt(this, value, offset, 4, 4294967295, 0);
}
this[offset] = value >>> 24;
this[offset + 1] = value >>> 16;
this[offset + 2] = value >>> 8;
this[offset + 3] = value & 255;
return offset + 4;
};
function wrtBigUInt64LE(buf, value, offset, min, max) {
checkIntBI(value, min, max, buf, offset, 7);
let lo = Number(value & BigInt(4294967295));
buf[offset++] = lo;
lo = lo >> 8;
buf[offset++] = lo;
lo = lo >> 8;
buf[offset++] = lo;
lo = lo >> 8;
buf[offset++] = lo;
let hi = Number(value >> BigInt(32) & BigInt(4294967295));
buf[offset++] = hi;
hi = hi >> 8;
buf[offset++] = hi;
hi = hi >> 8;
buf[offset++] = hi;
hi = hi >> 8;
buf[offset++] = hi;
return offset;
}
function wrtBigUInt64BE(buf, value, offset, min, max) {
checkIntBI(value, min, max, buf, offset, 7);
let lo = Number(value & BigInt(4294967295));
buf[offset + 7] = lo;
lo = lo >> 8;
buf[offset + 6] = lo;
lo = lo >> 8;
buf[offset + 5] = lo;
lo = lo >> 8;
buf[offset + 4] = lo;
let hi = Number(value >> BigInt(32) & BigInt(4294967295));
buf[offset + 3] = hi;
hi = hi >> 8;
buf[offset + 2] = hi;
hi = hi >> 8;
buf[offset + 1] = hi;
hi = hi >> 8;
buf[offset] = hi;
return offset + 8;
}
Buffer.prototype.writeBigUInt64LE = defineBigIntMethod(
function writeBigUInt64LE(value, offset = 0) {
return wrtBigUInt64LE(
this,
value,
offset,
BigInt(0),
BigInt("0xffffffffffffffff")
);
}
);
Buffer.prototype.writeBigUInt64BE = defineBigIntMethod(
function writeBigUInt64BE(value, offset = 0) {
return wrtBigUInt64BE(
this,
value,
offset,
BigInt(0),
BigInt("0xffffffffffffffff")
);
}
);
Buffer.prototype.writeIntLE = function writeIntLE(value, offset, byteLength2, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
const limit = Math.pow(2, 8 * byteLength2 - 1);
checkInt(this, value, offset, byteLength2, limit - 1, -limit);
}
let i = 0;
let mul = 1;
let sub = 0;
this[offset] = value & 255;
while (++i < byteLength2 && (mul *= 256)) {
if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
sub = 1;
}
this[offset + i] = Math.trunc(value / mul) - sub & 255;
}
return offset + byteLength2;
};
Buffer.prototype.writeIntBE = function writeIntBE(value, offset, byteLength2, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
const limit = Math.pow(2, 8 * byteLength2 - 1);
checkInt(this, value, offset, byteLength2, limit - 1, -limit);
}
let i = byteLength2 - 1;
let mul = 1;
let sub = 0;
this[offset + i] = value & 255;
while (--i >= 0 && (mul *= 256)) {
if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
sub = 1;
}
this[offset + i] = Math.trunc(value / mul) - sub & 255;
}
return offset + byteLength2;
};
Buffer.prototype.writeInt8 = function writeInt8(value, offset, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
checkInt(this, value, offset, 1, 127, -128);
}
if (value < 0) {
value = 255 + value + 1;
}
this[offset] = value & 255;
return offset + 1;
};
Buffer.prototype.writeInt16LE = function writeInt16LE(value, offset, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
checkInt(this, value, offset, 2, 32767, -32768);
}
this[offset] = value & 255;
this[offset + 1] = value >>> 8;
return offset + 2;
};
Buffer.prototype.writeInt16BE = function writeInt16BE(value, offset, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
checkInt(this, value, offset, 2, 32767, -32768);
}
this[offset] = value >>> 8;
this[offset + 1] = value & 255;
return offset + 2;
};
Buffer.prototype.writeInt32LE = function writeInt32LE(value, offset, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
checkInt(this, value, offset, 4, 2147483647, -2147483648);
}
this[offset] = value & 255;
this[offset + 1] = value >>> 8;
this[offset + 2] = value >>> 16;
this[offset + 3] = value >>> 24;
return offset + 4;
};
Buffer.prototype.writeInt32BE = function writeInt32BE(value, offset, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
checkInt(this, value, offset, 4, 2147483647, -2147483648);
}
if (value < 0) {
value = 4294967295 + value + 1;
}
this[offset] = value >>> 24;
this[offset + 1] = value >>> 16;
this[offset + 2] = value >>> 8;
this[offset + 3] = value & 255;
return offset + 4;
};
Buffer.prototype.writeBigInt64LE = defineBigIntMethod(function writeBigInt64LE(value, offset = 0) {
return wrtBigUInt64LE(
this,
value,
offset,
-BigInt("0x8000000000000000"),
BigInt("0x7fffffffffffffff")
);
});
Buffer.prototype.writeBigInt64BE = defineBigIntMethod(function writeBigInt64BE(value, offset = 0) {
return wrtBigUInt64BE(
this,
value,
offset,
-BigInt("0x8000000000000000"),
BigInt("0x7fffffffffffffff")
);
});
function checkIEEE754(buf, value, offset, ext, max, min) {
if (offset + ext > buf.length) {
throw new RangeError("Index out of range");
}
if (offset < 0) {
throw new RangeError("Index out of range");
}
}
function writeFloat(buf, value, offset, littleEndian, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
checkIEEE754(
buf,
value,
offset,
4,
34028234663852886e22,
-34028234663852886e22
);
}
ieee754.write(buf, value, offset, littleEndian, 23, 4);
return offset + 4;
}
Buffer.prototype.writeFloatLE = function writeFloatLE(value, offset, noAssert) {
return writeFloat(this, value, offset, true, noAssert);
};
Buffer.prototype.writeFloatBE = function writeFloatBE(value, offset, noAssert) {
return writeFloat(this, value, offset, false, noAssert);
};
function writeDouble(buf, value, offset, littleEndian, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
checkIEEE754(
buf,
value,
offset,
8,
17976931348623157e292,
-17976931348623157e292
);
}
ieee754.write(buf, value, offset, littleEndian, 52, 8);
return offset + 8;
}
Buffer.prototype.writeDoubleLE = function writeDoubleLE(value, offset, noAssert) {
return writeDouble(this, value, offset, true, noAssert);
};
Buffer.prototype.writeDoubleBE = function writeDoubleBE(value, offset, noAssert) {
return writeDouble(this, value, offset, false, noAssert);
};
Buffer.prototype.copy = function copy(target, targetStart, start, end) {
if (!Buffer.isBuffer(target)) {
throw new TypeError("argument should be a Buffer");
}
if (!start) {
start = 0;
}
if (!end && end !== 0) {
end = this.length;
}
if (targetStart >= target.length) {
targetStart = target.length;
}
if (!targetStart) {
targetStart = 0;
}
if (end > 0 && end < start) {
end = start;
}
if (end === start) {
return 0;
}
if (target.length === 0 || this.length === 0) {
return 0;
}
if (targetStart < 0) {
throw new RangeError("targetStart out of bounds");
}
if (start < 0 || start >= this.length) {
throw new RangeError("Index out of range");
}
if (end < 0) {
throw new RangeError("sourceEnd out of bounds");
}
if (end > this.length) {
end = this.length;
}
if (target.length - targetStart < end - start) {
end = target.length - targetStart + start;
}
const len = end - start;
if (this === target && typeof Uint8Array.prototype.copyWithin === "function") {
this.copyWithin(targetStart, start, end);
} else {
Uint8Array.prototype.set.call(
target,
this.subarray(start, end),
targetStart
);
}
return len;
};
Buffer.prototype.fill = function fill(val, start, end, encoding) {
if (typeof val === "string") {
if (typeof start === "string") {
encoding = start;
start = 0;
end = this.length;
} else if (typeof end === "string") {
encoding = end;
end = this.length;
}
if (encoding !== void 0 && typeof encoding !== "string") {
throw new TypeError("encoding must be a string");
}
if (typeof encoding === "string" && !Buffer.isEncoding(encoding)) {
throw new TypeError("Unknown encoding: " + encoding);
}
if (val.length === 1) {
const code = val.charCodeAt(0);
if (encoding === "utf8" && code < 128 || encoding === "latin1") {
val = code;
}
}
} else if (typeof val === "number") {
val = val & 255;
} else if (typeof val === "boolean") {
val = Number(val);
}
if (start < 0 || this.length < start || this.length < end) {
throw new RangeError("Out of range index");
}
if (end <= start) {
return this;
}
start = start >>> 0;
end = end === void 0 ? this.length : end >>> 0;
if (!val) {
val = 0;
}
let i;
if (typeof val === "number") {
for (i = start; i < end; ++i) {
this[i] = val;
}
} else {
const bytes = Buffer.isBuffer(val) ? val : Buffer.from(val, encoding);
const len = bytes.length;
if (len === 0) {
throw new TypeError(
'The value "' + val + '" is invalid for argument "value"'
);
}
for (i = 0; i < end - start; ++i) {
this[i + start] = bytes[i % len];
}
}
return this;
};
const errors = {};
function E(sym, getMessage, Base) {
errors[sym] = class NodeError extends Base {
constructor() {
super();
Object.defineProperty(this, "message", {
value: Reflect.apply(getMessage, this, arguments),
writable: true,
configurable: true
});
this.name = `${this.name} [${sym}]`;
this.stack;
delete this.name;
}
get code() {
return sym;
}
set code(value) {
Object.defineProperty(this, "code", {
configurable: true,
enumerable: true,
value,
writable: true
});
}
toString() {
return `${this.name} [${sym}]: ${this.message}`;
}
};
}
E(
"ERR_BUFFER_OUT_OF_BOUNDS",
function(name) {
if (name) {
return `${name} is outside of buffer bounds`;
}
return "Attempt to access memory outside buffer bounds";
},
RangeError
);
E(
"ERR_INVALID_ARG_TYPE",
function(name, actual) {
return `The "${name}" argument must be of type number. Received type ${typeof actual}`;
},
TypeError
);
E(
"ERR_OUT_OF_RANGE",
function(str, range, input) {
let msg = `The value of "${str}" is out of range.`;
let received = input;
if (Number.isInteger(input) && Math.abs(input) > 2 ** 32) {
received = addNumericalSeparator(String(input));
} else if (typeof input === "bigint") {
received = String(input);
if (input > BigInt(2) ** BigInt(32) || input < -(BigInt(2) ** BigInt(32))) {
received = addNumericalSeparator(received);
}
received += "n";
}
msg += ` It must be ${range}. Received ${received}`;
return msg;
},
RangeError
);
function addNumericalSeparator(val) {
let res = "";
let i = val.length;
const start = val[0] === "-" ? 1 : 0;
for (; i >= start + 4; i -= 3) {
res = `_${val.slice(i - 3, i)}${res}`;
}
return `${val.slice(0, i)}${res}`;
}
function checkBounds(buf, offset, byteLength2) {
validateNumber(offset, "offset");
if (buf[offset] === void 0 || buf[offset + byteLength2] === void 0) {
boundsError(offset, buf.length - (byteLength2 + 1));
}
}
function checkIntBI(value, min, max, buf, offset, byteLength2) {
if (value > max || value < min) {
const n = typeof min === "bigint" ? "n" : "";
let range;
if (byteLength2 > 3) {
range = min === 0 || min === BigInt(0) ? `>= 0${n} and < 2${n} ** ${(byteLength2 + 1) * 8}${n}` : `>= -(2${n} ** ${(byteLength2 + 1) * 8 - 1}${n}) and < 2 ** ${(byteLength2 + 1) * 8 - 1}${n}`;
} else {
range = `>= ${min}${n} and <= ${max}${n}`;
}
throw new errors.ERR_OUT_OF_RANGE("value", range, value);
}
checkBounds(buf, offset, byteLength2);
}
function validateNumber(value, name) {
if (typeof value !== "number") {
throw new errors.ERR_INVALID_ARG_TYPE(name, "number", value);
}
}
function boundsError(value, length, type) {
if (Math.floor(value) !== value) {
validateNumber(value, type);
throw new errors.ERR_OUT_OF_RANGE(type || "offset", "an integer", value);
}
if (length < 0) {
throw new errors.ERR_BUFFER_OUT_OF_BOUNDS();
}
throw new errors.ERR_OUT_OF_RANGE(
type || "offset",
`>= ${type ? 1 : 0} and <= ${length}`,
value
);
}
const INVALID_BASE64_RE = /[^\w+/-]/g;
function base64clean(str) {
str = str.split("=")[0];
str = str.trim().replace(INVALID_BASE64_RE, "");
if (str.length < 2) {
return "";
}
while (str.length % 4 !== 0) {
str = str + "=";
}
return str;
}
function utf8ToBytes(string, units) {
units = units || Number.POSITIVE_INFINITY;
let codePoint;
const length = string.length;
let leadSurrogate = null;
const bytes = [];
for (let i = 0; i < length; ++i) {
codePoint = string.charCodeAt(i);
if (codePoint > 55295 && codePoint < 57344) {
if (!leadSurrogate) {
if (codePoint > 56319) {
if ((units -= 3) > -1) {
bytes.push(239, 191, 189);
}
continue;
} else if (i + 1 === length) {
if ((units -= 3) > -1) {
bytes.push(239, 191, 189);
}
continue;
}
leadSurrogate = codePoint;
continue;
}
if (codePoint < 56320) {
if ((units -= 3) > -1) {
bytes.push(239, 191, 189);
}
leadSurrogate = codePoint;
continue;
}
codePoint = (leadSurrogate - 55296 << 10 | codePoint - 56320) + 65536;
} else if (leadSurrogate && // valid bmp char, but last char was a lead
(units -= 3) > -1) {
bytes.push(239, 191, 189);
}
leadSurrogate = null;
if (codePoint < 128) {
if ((units -= 1) < 0) {
break;
}