@fireproof/database
Version:
Live database for the web
4 lines • 6.9 MB
Source Map (JSON)
{
"version": 3,
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"sourcesContent": ["export const __dirname = \"/\";\n", "export default {};\n", "export * as process from \"process\";\n", "var exports$3 = {},\n _dewExec$2 = false;\nfunction dew$2() {\n if (_dewExec$2) return exports$3;\n _dewExec$2 = true;\n exports$3.byteLength = byteLength;\n exports$3.toByteArray = toByteArray;\n exports$3.fromByteArray = fromByteArray;\n var lookup = [];\n var revLookup = [];\n var Arr = typeof Uint8Array !== \"undefined\" ? Uint8Array : Array;\n var code = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n\n for (var i = 0, len = code.length; i < len; ++i) {\n lookup[i] = code[i];\n revLookup[code.charCodeAt(i)] = i;\n } // Support decoding URL-safe base64 strings, as Node.js does.\n // See: https://en.wikipedia.org/wiki/Base64#URL_applications\n\n\n revLookup[\"-\".charCodeAt(0)] = 62;\n revLookup[\"_\".charCodeAt(0)] = 63;\n\n function getLens(b64) {\n var len = b64.length;\n\n if (len % 4 > 0) {\n throw new Error(\"Invalid string. Length must be a multiple of 4\");\n } // Trim off extra bytes after placeholder bytes are found\n // See: https://github.com/beatgammit/base64-js/issues/42\n\n\n var validLen = b64.indexOf(\"=\");\n if (validLen === -1) validLen = len;\n var placeHoldersLen = validLen === len ? 0 : 4 - validLen % 4;\n return [validLen, placeHoldersLen];\n } // base64 is 4/3 + up to two characters of the original data\n\n\n function byteLength(b64) {\n var lens = getLens(b64);\n var validLen = lens[0];\n var placeHoldersLen = lens[1];\n return (validLen + placeHoldersLen) * 3 / 4 - placeHoldersLen;\n }\n\n function _byteLength(b64, validLen, placeHoldersLen) {\n return (validLen + placeHoldersLen) * 3 / 4 - placeHoldersLen;\n }\n\n function toByteArray(b64) {\n var tmp;\n var lens = getLens(b64);\n var validLen = lens[0];\n var placeHoldersLen = lens[1];\n var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen));\n var curByte = 0; // if there are placeholders, only get up to the last complete 4 chars\n\n var len = placeHoldersLen > 0 ? validLen - 4 : validLen;\n var i;\n\n for (i = 0; i < len; i += 4) {\n tmp = revLookup[b64.charCodeAt(i)] << 18 | revLookup[b64.charCodeAt(i + 1)] << 12 | revLookup[b64.charCodeAt(i + 2)] << 6 | revLookup[b64.charCodeAt(i + 3)];\n arr[curByte++] = tmp >> 16 & 255;\n arr[curByte++] = tmp >> 8 & 255;\n arr[curByte++] = tmp & 255;\n }\n\n if (placeHoldersLen === 2) {\n tmp = revLookup[b64.charCodeAt(i)] << 2 | revLookup[b64.charCodeAt(i + 1)] >> 4;\n arr[curByte++] = tmp & 255;\n }\n\n if (placeHoldersLen === 1) {\n tmp = revLookup[b64.charCodeAt(i)] << 10 | revLookup[b64.charCodeAt(i + 1)] << 4 | revLookup[b64.charCodeAt(i + 2)] >> 2;\n arr[curByte++] = tmp >> 8 & 255;\n arr[curByte++] = tmp & 255;\n }\n\n return arr;\n }\n\n function tripletToBase64(num) {\n return lookup[num >> 18 & 63] + lookup[num >> 12 & 63] + lookup[num >> 6 & 63] + lookup[num & 63];\n }\n\n function encodeChunk(uint8, start, end) {\n var tmp;\n var output = [];\n\n for (var i = start; i < end; i += 3) {\n tmp = (uint8[i] << 16 & 16711680) + (uint8[i + 1] << 8 & 65280) + (uint8[i + 2] & 255);\n output.push(tripletToBase64(tmp));\n }\n\n return output.join(\"\");\n }\n\n function fromByteArray(uint8) {\n var tmp;\n var len = uint8.length;\n var extraBytes = len % 3; // if we have 1 byte left, pad 2 bytes\n\n var parts = [];\n var maxChunkLength = 16383; // must be multiple of 3\n // go through the array every three bytes, we'll deal with trailing stuff later\n\n for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {\n parts.push(encodeChunk(uint8, i, i + maxChunkLength > len2 ? len2 : i + maxChunkLength));\n } // pad the end with zeros, but make sure to not forget the extra bytes\n\n\n if (extraBytes === 1) {\n tmp = uint8[len - 1];\n parts.push(lookup[tmp >> 2] + lookup[tmp << 4 & 63] + \"==\");\n } else if (extraBytes === 2) {\n tmp = (uint8[len - 2] << 8) + uint8[len - 1];\n parts.push(lookup[tmp >> 10] + lookup[tmp >> 4 & 63] + lookup[tmp << 2 & 63] + \"=\");\n }\n\n return parts.join(\"\");\n }\n\n return exports$3;\n}\n\nvar exports$2 = {},\n _dewExec$1 = false;\nfunction dew$1() {\n if (_dewExec$1) return exports$2;\n _dewExec$1 = true;\n\n /*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh <https://feross.org/opensource> */\n exports$2.read = function (buffer, offset, isLE, mLen, nBytes) {\n var e, m;\n var eLen = nBytes * 8 - mLen - 1;\n var eMax = (1 << eLen) - 1;\n var eBias = eMax >> 1;\n var nBits = -7;\n var i = isLE ? nBytes - 1 : 0;\n var d = isLE ? -1 : 1;\n var s = buffer[offset + i];\n i += d;\n e = s & (1 << -nBits) - 1;\n s >>= -nBits;\n nBits += eLen;\n\n for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}\n\n m = e & (1 << -nBits) - 1;\n e >>= -nBits;\n nBits += mLen;\n\n for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}\n\n if (e === 0) {\n e = 1 - eBias;\n } else if (e === eMax) {\n return m ? NaN : (s ? -1 : 1) * Infinity;\n } else {\n m = m + Math.pow(2, mLen);\n e = e - eBias;\n }\n\n return (s ? -1 : 1) * m * Math.pow(2, e - mLen);\n };\n\n exports$2.write = function (buffer, value, offset, isLE, mLen, nBytes) {\n var e, m, c;\n var eLen = nBytes * 8 - mLen - 1;\n var eMax = (1 << eLen) - 1;\n var eBias = eMax >> 1;\n var rt = mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0;\n var i = isLE ? 0 : nBytes - 1;\n var d = isLE ? 1 : -1;\n var s = value < 0 || value === 0 && 1 / value < 0 ? 1 : 0;\n value = Math.abs(value);\n\n if (isNaN(value) || value === Infinity) {\n m = isNaN(value) ? 1 : 0;\n e = eMax;\n } else {\n e = Math.floor(Math.log(value) / Math.LN2);\n\n if (value * (c = Math.pow(2, -e)) < 1) {\n e--;\n c *= 2;\n }\n\n if (e + eBias >= 1) {\n value += rt / c;\n } else {\n value += rt * Math.pow(2, 1 - eBias);\n }\n\n if (value * c >= 2) {\n e++;\n c /= 2;\n }\n\n if (e + eBias >= eMax) {\n m = 0;\n e = eMax;\n } else if (e + eBias >= 1) {\n m = (value * c - 1) * Math.pow(2, mLen);\n e = e + eBias;\n } else {\n m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);\n e = 0;\n }\n }\n\n for (; mLen >= 8; buffer[offset + i] = m & 255, i += d, m /= 256, mLen -= 8) {}\n\n e = e << mLen | m;\n eLen += mLen;\n\n for (; eLen > 0; buffer[offset + i] = e & 255, i += d, e /= 256, eLen -= 8) {}\n\n buffer[offset + i - d] |= s * 128;\n };\n\n return exports$2;\n}\n\nvar exports$1 = {},\n _dewExec = false;\nfunction dew() {\n if (_dewExec) return exports$1;\n _dewExec = true;\n\n const base64 = dew$2();\n\n const ieee754 = dew$1();\n\n const customInspectSymbol = typeof Symbol === \"function\" && typeof Symbol[\"for\"] === \"function\" ? Symbol[\"for\"](\"nodejs.util.inspect.custom\") // eslint-disable-line dot-notation\n : null;\n exports$1.Buffer = Buffer;\n exports$1.SlowBuffer = SlowBuffer;\n exports$1.INSPECT_MAX_BYTES = 50;\n const K_MAX_LENGTH = 2147483647;\n exports$1.kMaxLength = K_MAX_LENGTH;\n /**\n * If `Buffer.TYPED_ARRAY_SUPPORT`:\n * === true Use Uint8Array implementation (fastest)\n * === false Print warning and recommend using `buffer` v4.x which has an Object\n * implementation (most compatible, even IE6)\n *\n * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,\n * Opera 11.6+, iOS 4.2+.\n *\n * We report that the browser does not support typed arrays if the are not subclassable\n * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`\n * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support\n * for __proto__ and has a buggy typed array implementation.\n */\n\n Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport();\n\n if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== \"undefined\" && typeof console.error === \"function\") {\n console.error(\"This browser lacks typed array (Uint8Array) support which is required by \" + \"`buffer` v5.x. Use `buffer` v4.x if you require old browser support.\");\n }\n\n function typedArraySupport() {\n // Can typed array instances can be augmented?\n try {\n const arr = new Uint8Array(1);\n const proto = {\n foo: function () {\n return 42;\n }\n };\n Object.setPrototypeOf(proto, Uint8Array.prototype);\n Object.setPrototypeOf(arr, proto);\n return arr.foo() === 42;\n } catch (e) {\n return false;\n }\n }\n\n Object.defineProperty(Buffer.prototype, \"parent\", {\n enumerable: true,\n get: function () {\n if (!Buffer.isBuffer(this)) return undefined;\n return this.buffer;\n }\n });\n Object.defineProperty(Buffer.prototype, \"offset\", {\n enumerable: true,\n get: function () {\n if (!Buffer.isBuffer(this)) return undefined;\n return this.byteOffset;\n }\n });\n\n function createBuffer(length) {\n if (length > K_MAX_LENGTH) {\n throw new RangeError(\"The value \\\"\" + length + \"\\\" is invalid for option \\\"size\\\"\");\n } // Return an augmented `Uint8Array` instance\n\n\n const buf = new Uint8Array(length);\n Object.setPrototypeOf(buf, Buffer.prototype);\n return buf;\n }\n /**\n * The Buffer constructor returns instances of `Uint8Array` that have their\n * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of\n * `Uint8Array`, so the returned instances will have all the node `Buffer` methods\n * and the `Uint8Array` methods. Square bracket notation works as expected -- it\n * returns a single octet.\n *\n * The `Uint8Array` prototype remains unmodified.\n */\n\n\n function Buffer(arg, encodingOrOffset, length) {\n // Common case.\n if (typeof arg === \"number\") {\n if (typeof encodingOrOffset === \"string\") {\n throw new TypeError(\"The \\\"string\\\" argument must be of type string. Received type number\");\n }\n\n return allocUnsafe(arg);\n }\n\n return from(arg, encodingOrOffset, length);\n }\n\n Buffer.poolSize = 8192; // not used by this implementation\n\n function from(value, encodingOrOffset, length) {\n if (typeof value === \"string\") {\n return fromString(value, encodingOrOffset);\n }\n\n if (ArrayBuffer.isView(value)) {\n return fromArrayView(value);\n }\n\n if (value == null) {\n throw new TypeError(\"The first argument must be one of type string, Buffer, ArrayBuffer, Array, \" + \"or Array-like Object. Received type \" + typeof value);\n }\n\n if (isInstance(value, ArrayBuffer) || value && isInstance(value.buffer, ArrayBuffer)) {\n return fromArrayBuffer(value, encodingOrOffset, length);\n }\n\n if (typeof SharedArrayBuffer !== \"undefined\" && (isInstance(value, SharedArrayBuffer) || value && isInstance(value.buffer, SharedArrayBuffer))) {\n return fromArrayBuffer(value, encodingOrOffset, length);\n }\n\n if (typeof value === \"number\") {\n throw new TypeError(\"The \\\"value\\\" argument must not be of type number. Received type number\");\n }\n\n const valueOf = value.valueOf && value.valueOf();\n\n if (valueOf != null && valueOf !== value) {\n return Buffer.from(valueOf, encodingOrOffset, length);\n }\n\n const b = fromObject(value);\n if (b) return b;\n\n if (typeof Symbol !== \"undefined\" && Symbol.toPrimitive != null && typeof value[Symbol.toPrimitive] === \"function\") {\n return Buffer.from(value[Symbol.toPrimitive](\"string\"), encodingOrOffset, length);\n }\n\n throw new TypeError(\"The first argument must be one of type string, Buffer, ArrayBuffer, Array, \" + \"or Array-like Object. Received type \" + typeof value);\n }\n /**\n * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError\n * if value is a number.\n * Buffer.from(str[, encoding])\n * Buffer.from(array)\n * Buffer.from(buffer)\n * Buffer.from(arrayBuffer[, byteOffset[, length]])\n **/\n\n\n Buffer.from = function (value, encodingOrOffset, length) {\n return from(value, encodingOrOffset, length);\n }; // Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:\n // https://github.com/feross/buffer/pull/148\n\n\n Object.setPrototypeOf(Buffer.prototype, Uint8Array.prototype);\n Object.setPrototypeOf(Buffer, Uint8Array);\n\n function assertSize(size) {\n if (typeof size !== \"number\") {\n throw new TypeError(\"\\\"size\\\" argument must be of type number\");\n } else if (size < 0) {\n throw new RangeError(\"The value \\\"\" + size + \"\\\" is invalid for option \\\"size\\\"\");\n }\n }\n\n function alloc(size, fill, encoding) {\n assertSize(size);\n\n if (size <= 0) {\n return createBuffer(size);\n }\n\n if (fill !== undefined) {\n // Only pay attention to encoding if it's a string. This\n // prevents accidentally sending in a number that would\n // be interpreted as a start offset.\n return typeof encoding === \"string\" ? createBuffer(size).fill(fill, encoding) : createBuffer(size).fill(fill);\n }\n\n return createBuffer(size);\n }\n /**\n * Creates a new filled Buffer instance.\n * alloc(size[, fill[, encoding]])\n **/\n\n\n Buffer.alloc = function (size, fill, encoding) {\n return alloc(size, fill, encoding);\n };\n\n function allocUnsafe(size) {\n assertSize(size);\n return createBuffer(size < 0 ? 0 : checked(size) | 0);\n }\n /**\n * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.\n * */\n\n\n Buffer.allocUnsafe = function (size) {\n return allocUnsafe(size);\n };\n /**\n * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.\n */\n\n\n Buffer.allocUnsafeSlow = function (size) {\n return allocUnsafe(size);\n };\n\n function fromString(string, encoding) {\n if (typeof encoding !== \"string\" || encoding === \"\") {\n encoding = \"utf8\";\n }\n\n if (!Buffer.isEncoding(encoding)) {\n throw new TypeError(\"Unknown encoding: \" + encoding);\n }\n\n const length = byteLength(string, encoding) | 0;\n let buf = createBuffer(length);\n const actual = buf.write(string, encoding);\n\n if (actual !== length) {\n // Writing a hex string, for example, that contains invalid characters will\n // cause everything after the first invalid character to be ignored. (e.g.\n // 'abxxcd' will be treated as 'ab')\n buf = buf.slice(0, actual);\n }\n\n return buf;\n }\n\n function fromArrayLike(array) {\n const length = array.length < 0 ? 0 : checked(array.length) | 0;\n const buf = createBuffer(length);\n\n for (let i = 0; i < length; i += 1) {\n buf[i] = array[i] & 255;\n }\n\n return buf;\n }\n\n function fromArrayView(arrayView) {\n if (isInstance(arrayView, Uint8Array)) {\n const copy = new Uint8Array(arrayView);\n return fromArrayBuffer(copy.buffer, copy.byteOffset, copy.byteLength);\n }\n\n return fromArrayLike(arrayView);\n }\n\n function fromArrayBuffer(array, byteOffset, length) {\n if (byteOffset < 0 || array.byteLength < byteOffset) {\n throw new RangeError(\"\\\"offset\\\" is outside of buffer bounds\");\n }\n\n if (array.byteLength < byteOffset + (length || 0)) {\n throw new RangeError(\"\\\"length\\\" is outside of buffer bounds\");\n }\n\n let buf;\n\n if (byteOffset === undefined && length === undefined) {\n buf = new Uint8Array(array);\n } else if (length === undefined) {\n buf = new Uint8Array(array, byteOffset);\n } else {\n buf = new Uint8Array(array, byteOffset, length);\n } // Return an augmented `Uint8Array` instance\n\n\n Object.setPrototypeOf(buf, Buffer.prototype);\n return buf;\n }\n\n function fromObject(obj) {\n if (Buffer.isBuffer(obj)) {\n const len = checked(obj.length) | 0;\n const buf = createBuffer(len);\n\n if (buf.length === 0) {\n return buf;\n }\n\n obj.copy(buf, 0, 0, len);\n return buf;\n }\n\n if (obj.length !== undefined) {\n if (typeof obj.length !== \"number\" || numberIsNaN(obj.length)) {\n return createBuffer(0);\n }\n\n return fromArrayLike(obj);\n }\n\n if (obj.type === \"Buffer\" && Array.isArray(obj.data)) {\n return fromArrayLike(obj.data);\n }\n }\n\n function checked(length) {\n // Note: cannot use `length < K_MAX_LENGTH` here because that fails when\n // length is NaN (which is otherwise coerced to zero.)\n if (length >= K_MAX_LENGTH) {\n throw new RangeError(\"Attempt to allocate Buffer larger than maximum \" + \"size: 0x\" + K_MAX_LENGTH.toString(16) + \" bytes\");\n }\n\n return length | 0;\n }\n\n function SlowBuffer(length) {\n if (+length != length) {\n // eslint-disable-line eqeqeq\n length = 0;\n }\n\n return Buffer.alloc(+length);\n }\n\n Buffer.isBuffer = function isBuffer(b) {\n return b != null && b._isBuffer === true && b !== Buffer.prototype; // so Buffer.isBuffer(Buffer.prototype) will be false\n };\n\n Buffer.compare = function compare(a, b) {\n if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength);\n if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength);\n\n if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {\n throw new TypeError(\"The \\\"buf1\\\", \\\"buf2\\\" arguments must be one of type Buffer or Uint8Array\");\n }\n\n if (a === b) return 0;\n let x = a.length;\n let y = b.length;\n\n for (let i = 0, len = Math.min(x, y); i < len; ++i) {\n if (a[i] !== b[i]) {\n x = a[i];\n y = b[i];\n break;\n }\n }\n\n if (x < y) return -1;\n if (y < x) return 1;\n return 0;\n };\n\n Buffer.isEncoding = function isEncoding(encoding) {\n switch (String(encoding).toLowerCase()) {\n case \"hex\":\n case \"utf8\":\n case \"utf-8\":\n case \"ascii\":\n case \"latin1\":\n case \"binary\":\n case \"base64\":\n case \"ucs2\":\n case \"ucs-2\":\n case \"utf16le\":\n case \"utf-16le\":\n return true;\n\n default:\n return false;\n }\n };\n\n Buffer.concat = function concat(list, length) {\n if (!Array.isArray(list)) {\n throw new TypeError(\"\\\"list\\\" argument must be an Array of Buffers\");\n }\n\n if (list.length === 0) {\n return Buffer.alloc(0);\n }\n\n let i;\n\n if (length === undefined) {\n length = 0;\n\n for (i = 0; i < list.length; ++i) {\n length += list[i].length;\n }\n }\n\n const buffer = Buffer.allocUnsafe(length);\n let pos = 0;\n\n for (i = 0; i < list.length; ++i) {\n let buf = list[i];\n\n if (isInstance(buf, Uint8Array)) {\n if (pos + buf.length > buffer.length) {\n if (!Buffer.isBuffer(buf)) buf = Buffer.from(buf);\n buf.copy(buffer, pos);\n } else {\n Uint8Array.prototype.set.call(buffer, buf, pos);\n }\n } else if (!Buffer.isBuffer(buf)) {\n throw new TypeError(\"\\\"list\\\" argument must be an Array of Buffers\");\n } else {\n buf.copy(buffer, pos);\n }\n\n pos += buf.length;\n }\n\n return buffer;\n };\n\n function byteLength(string, encoding) {\n if (Buffer.isBuffer(string)) {\n return string.length;\n }\n\n if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {\n return string.byteLength;\n }\n\n if (typeof string !== \"string\") {\n throw new TypeError(\"The \\\"string\\\" argument must be one of type string, Buffer, or ArrayBuffer. \" + \"Received type \" + typeof string);\n }\n\n const len = string.length;\n const mustMatch = arguments.length > 2 && arguments[2] === true;\n if (!mustMatch && len === 0) return 0; // Use a for loop to avoid recursion\n\n let loweredCase = false;\n\n for (;;) {\n switch (encoding) {\n case \"ascii\":\n case \"latin1\":\n case \"binary\":\n return len;\n\n case \"utf8\":\n case \"utf-8\":\n return utf8ToBytes(string).length;\n\n case \"ucs2\":\n case \"ucs-2\":\n case \"utf16le\":\n case \"utf-16le\":\n return len * 2;\n\n case \"hex\":\n return len >>> 1;\n\n case \"base64\":\n return base64ToBytes(string).length;\n\n default:\n if (loweredCase) {\n return mustMatch ? -1 : utf8ToBytes(string).length; // assume utf8\n }\n\n encoding = (\"\" + encoding).toLowerCase();\n loweredCase = true;\n }\n }\n }\n\n Buffer.byteLength = byteLength;\n\n function slowToString(encoding, start, end) {\n let loweredCase = false; // No need to verify that \"this.length <= MAX_UINT32\" since it's a read-only\n // property of a typed array.\n // This behaves neither like String nor Uint8Array in that we set start/end\n // to their upper/lower bounds if the value passed is out of range.\n // undefined is handled specially as per ECMA-262 6th Edition,\n // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.\n\n if (start === undefined || start < 0) {\n start = 0;\n } // Return early if start > this.length. Done here to prevent potential uint32\n // coercion fail below.\n\n\n if (start > this.length) {\n return \"\";\n }\n\n if (end === undefined || end > this.length) {\n end = this.length;\n }\n\n if (end <= 0) {\n return \"\";\n } // Force coercion to uint32. This will also coerce falsey/NaN values to 0.\n\n\n end >>>= 0;\n start >>>= 0;\n\n if (end <= start) {\n return \"\";\n }\n\n if (!encoding) encoding = \"utf8\";\n\n while (true) {\n switch (encoding) {\n case \"hex\":\n return hexSlice(this, start, end);\n\n case \"utf8\":\n case \"utf-8\":\n return utf8Slice(this, start, end);\n\n case \"ascii\":\n return asciiSlice(this, start, end);\n\n case \"latin1\":\n case \"binary\":\n return latin1Slice(this, start, end);\n\n case \"base64\":\n return base64Slice(this, start, end);\n\n case \"ucs2\":\n case \"ucs-2\":\n case \"utf16le\":\n case \"utf-16le\":\n return utf16leSlice(this, start, end);\n\n default:\n if (loweredCase) throw new TypeError(\"Unknown encoding: \" + encoding);\n encoding = (encoding + \"\").toLowerCase();\n loweredCase = true;\n }\n }\n } // This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)\n // to detect a Buffer instance. It's not possible to use `instanceof Buffer`\n // reliably in a browserify context because there could be multiple different\n // copies of the 'buffer' package in use. This method works even for Buffer\n // instances that were created from another copy of the `buffer` package.\n // See: https://github.com/feross/buffer/issues/154\n\n\n Buffer.prototype._isBuffer = true;\n\n function swap(b, n, m) {\n const i = b[n];\n b[n] = b[m];\n b[m] = i;\n }\n\n Buffer.prototype.swap16 = function swap16() {\n const len = this.length;\n\n if (len % 2 !== 0) {\n throw new RangeError(\"Buffer size must be a multiple of 16-bits\");\n }\n\n for (let i = 0; i < len; i += 2) {\n swap(this, i, i + 1);\n }\n\n return this;\n };\n\n Buffer.prototype.swap32 = function swap32() {\n const len = this.length;\n\n if (len % 4 !== 0) {\n throw new RangeError(\"Buffer size must be a multiple of 32-bits\");\n }\n\n for (let i = 0; i < len; i += 4) {\n swap(this, i, i + 3);\n swap(this, i + 1, i + 2);\n }\n\n return this;\n };\n\n Buffer.prototype.swap64 = function swap64() {\n const len = this.length;\n\n if (len % 8 !== 0) {\n throw new RangeError(\"Buffer size must be a multiple of 64-bits\");\n }\n\n for (let i = 0; i < len; i += 8) {\n swap(this, i, i + 7);\n swap(this, i + 1, i + 6);\n swap(this, i + 2, i + 5);\n swap(this, i + 3, i + 4);\n }\n\n return this;\n };\n\n Buffer.prototype.toString = function toString() {\n const length = this.length;\n if (length === 0) return \"\";\n if (arguments.length === 0) return utf8Slice(this, 0, length);\n return slowToString.apply(this, arguments);\n };\n\n Buffer.prototype.toLocaleString = Buffer.prototype.toString;\n\n Buffer.prototype.equals = function equals(b) {\n if (!Buffer.isBuffer(b)) throw new TypeError(\"Argument must be a Buffer\");\n if (this === b) return true;\n return Buffer.compare(this, b) === 0;\n };\n\n Buffer.prototype.inspect = function inspect() {\n let str = \"\";\n const max = exports$1.INSPECT_MAX_BYTES;\n str = this.toString(\"hex\", 0, max).replace(/(.{2})/g, \"$1 \").trim();\n if (this.length > max) str += \" ... \";\n return \"<Buffer \" + str + \">\";\n };\n\n if (customInspectSymbol) {\n Buffer.prototype[customInspectSymbol] = Buffer.prototype.inspect;\n }\n\n Buffer.prototype.compare = function compare(target, start, end, thisStart, thisEnd) {\n if (isInstance(target, Uint8Array)) {\n target = Buffer.from(target, target.offset, target.byteLength);\n }\n\n if (!Buffer.isBuffer(target)) {\n throw new TypeError(\"The \\\"target\\\" argument must be one of type Buffer or Uint8Array. \" + \"Received type \" + typeof target);\n }\n\n if (start === undefined) {\n start = 0;\n }\n\n if (end === undefined) {\n end = target ? target.length : 0;\n }\n\n if (thisStart === undefined) {\n thisStart = 0;\n }\n\n if (thisEnd === undefined) {\n thisEnd = this.length;\n }\n\n if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {\n throw new RangeError(\"out of range index\");\n }\n\n if (thisStart >= thisEnd && start >= end) {\n return 0;\n }\n\n if (thisStart >= thisEnd) {\n return -1;\n }\n\n if (start >= end) {\n return 1;\n }\n\n start >>>= 0;\n end >>>= 0;\n thisStart >>>= 0;\n thisEnd >>>= 0;\n if (this === target) return 0;\n let x = thisEnd - thisStart;\n let y = end - start;\n const len = Math.min(x, y);\n const thisCopy = this.slice(thisStart, thisEnd);\n const targetCopy = target.slice(start, end);\n\n for (let i = 0; i < len; ++i) {\n if (thisCopy[i] !== targetCopy[i]) {\n x = thisCopy[i];\n y = targetCopy[i];\n break;\n }\n }\n\n if (x < y) return -1;\n if (y < x) return 1;\n return 0;\n }; // Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,\n // OR the last index of `val` in `buffer` at offset <= `byteOffset`.\n //\n // Arguments:\n // - buffer - a Buffer to search\n // - val - a string, Buffer, or number\n // - byteOffset - an index into `buffer`; will be clamped to an int32\n // - encoding - an optional encoding, relevant is val is a string\n // - dir - true for indexOf, false for lastIndexOf\n\n\n function bidirectionalIndexOf(buffer, val, byteOffset, encoding, dir) {\n // Empty buffer means no match\n if (buffer.length === 0) return -1; // Normalize byteOffset\n\n if (typeof byteOffset === \"string\") {\n encoding = byteOffset;\n byteOffset = 0;\n } else if (byteOffset > 2147483647) {\n byteOffset = 2147483647;\n } else if (byteOffset < -2147483648) {\n byteOffset = -2147483648;\n }\n\n byteOffset = +byteOffset; // Coerce to Number.\n\n if (numberIsNaN(byteOffset)) {\n // byteOffset: it it's undefined, null, NaN, \"foo\", etc, search whole buffer\n byteOffset = dir ? 0 : buffer.length - 1;\n } // Normalize byteOffset: negative offsets start from the end of the buffer\n\n\n if (byteOffset < 0) byteOffset = buffer.length + byteOffset;\n\n if (byteOffset >= buffer.length) {\n if (dir) return -1;else byteOffset = buffer.length - 1;\n } else if (byteOffset < 0) {\n if (dir) byteOffset = 0;else return -1;\n } // Normalize val\n\n\n if (typeof val === \"string\") {\n val = Buffer.from(val, encoding);\n } // Finally, search either indexOf (if dir is true) or lastIndexOf\n\n\n if (Buffer.isBuffer(val)) {\n // Special case: looking for empty string/buffer always fails\n if (val.length === 0) {\n return -1;\n }\n\n return arrayIndexOf(buffer, val, byteOffset, encoding, dir);\n } else if (typeof val === \"number\") {\n val = val & 255; // Search for a byte value [0-255]\n\n if (typeof Uint8Array.prototype.indexOf === \"function\") {\n if (dir) {\n return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset);\n } else {\n return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset);\n }\n }\n\n return arrayIndexOf(buffer, [val], byteOffset, encoding, dir);\n }\n\n throw new TypeError(\"val must be string, number or Buffer\");\n }\n\n function arrayIndexOf(arr, val, byteOffset, encoding, dir) {\n let indexSize = 1;\n let arrLength = arr.length;\n let valLength = val.length;\n\n if (encoding !== undefined) {\n encoding = String(encoding).toLowerCase();\n\n if (encoding === \"ucs2\" || encoding === \"ucs-2\" || encoding === \"utf16le\" || encoding === \"utf-16le\") {\n if (arr.length < 2 || val.length < 2) {\n return -1;\n }\n\n indexSize = 2;\n arrLength /= 2;\n valLength /= 2;\n byteOffset /= 2;\n }\n }\n\n function read(buf, i) {\n if (indexSize === 1) {\n return buf[i];\n } else {\n return buf.readUInt16BE(i * indexSize);\n }\n }\n\n let i;\n\n if (dir) {\n let foundIndex = -1;\n\n for (i = byteOffset; i < arrLength; i++) {\n if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {\n if (foundIndex === -1) foundIndex = i;\n if (i - foundIndex + 1 === valLength) return foundIndex * indexSize;\n } else {\n if (foundIndex !== -1) i -= i - foundIndex;\n foundIndex = -1;\n }\n }\n } else {\n if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength;\n\n for (i = byteOffset; i >= 0; i--) {\n let found = true;\n\n for (let j = 0; j < valLength; j++) {\n if (read(arr, i + j) !== read(val, j)) {\n found = false;\n break;\n }\n }\n\n if (found) return i;\n }\n }\n\n return -1;\n }\n\n Buffer.prototype.includes = function includes(val, byteOffset, encoding) {\n return this.indexOf(val, byteOffset, encoding) !== -1;\n };\n\n Buffer.prototype.indexOf = function indexOf(val, byteOffset, encoding) {\n return bidirectionalIndexOf(this, val, byteOffset, encoding, true);\n };\n\n Buffer.prototype.lastIndexOf = function lastIndexOf(val, byteOffset, encoding) {\n return bidirectionalIndexOf(this, val, byteOffset, encoding, false);\n };\n\n function hexWrite(buf, string, offset, length) {\n offset = Number(offset) || 0;\n const remaining = buf.length - offset;\n\n if (!length) {\n length = remaining;\n } else {\n length = Number(length);\n\n if (length > remaining) {\n length = remaining;\n }\n }\n\n const strLen = string.length;\n\n if (length > strLen / 2) {\n length = strLen / 2;\n }\n\n let i;\n\n for (i = 0; i < length; ++i) {\n const parsed = parseInt(string.substr(i * 2, 2), 16);\n if (numberIsNaN(parsed)) return i;\n buf[offset + i] = parsed;\n }\n\n return i;\n }\n\n function utf8Write(buf, string, offset, length) {\n return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length);\n }\n\n function asciiWrite(buf, string, offset, length) {\n return blitBuffer(asciiToBytes(string), buf, offset, length);\n }\n\n function base64Write(buf, string, offset, length) {\n return blitBuffer(base64ToBytes(string), buf, offset, length);\n }\n\n function ucs2Write(buf, string, offset, length) {\n return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length);\n }\n\n Buffer.prototype.write = function write(string, offset, length, encoding) {\n // Buffer#write(string)\n if (offset === undefined) {\n encoding = \"utf8\";\n length = this.length;\n offset = 0; // Buffer#write(string, encoding)\n } else if (length === undefined && typeof offset === \"string\") {\n encoding = offset;\n length = this.length;\n offset = 0; // Buffer#write(string, offset[, length][, encoding])\n } else if (isFinite(offset)) {\n offset = offset >>> 0;\n\n if (isFinite(length)) {\n length = length >>> 0;\n if (encoding === undefined) encoding = \"utf8\";\n } else {\n encoding = length;\n length = undefined;\n }\n } else {\n throw new Error(\"Buffer.write(string, encoding, offset[, length]) is no longer supported\");\n }\n\n const remaining = this.length - offset;\n if (length === undefined || length > remaining) length = remaining;\n\n if (string.length > 0 && (length < 0 || offset < 0) || offset > this.length) {\n throw new RangeError(\"Attempt to write outside buffer bounds\");\n }\n\n if (!encoding) encoding = \"utf8\";\n let loweredCase = false;\n\n for (;;) {\n switch (encoding) {\n case \"hex\":\n return hexWrite(this, string, offset, length);\n\n case \"utf8\":\n case \"utf-8\":\n return utf8Write(this, string, off