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@ts-nocheck\n\n/**\n * Copyright (c) 2018 Endel Dreyer\n * Copyright (c) 2014 Ion Drive Software Ltd.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in all\n * copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n * SOFTWARE\n */\n\nimport type { TextEncoder } from \"util\";\nimport type { Iterator } from \"./decode\";\n\nexport type BufferLike = number[] | ArrayBufferLike | Buffer;\n\n/**\n * msgpack implementation highly based on notepack.io\n * https://github.com/darrachequesne/notepack\n */\n\nlet textEncoder: TextEncoder;\n// @ts-ignore\ntry { textEncoder = new TextEncoder(); } catch (e) { }\n\n// force little endian to facilitate decoding on multiple implementations\nconst _isLittleEndian = true; // new Uint16Array(new Uint8Array([1, 0]).buffer)[0] === 1;\nconst _convoBuffer = new ArrayBuffer(8);\nconst _int32 = new Int32Array(_convoBuffer);\nconst _float32 = new Float32Array(_convoBuffer);\nconst _float64 = new Float64Array(_convoBuffer);\nconst _int64 = new BigInt64Array(_convoBuffer);\n\nconst hasBufferByteLength = (typeof Buffer !== 'undefined' && Buffer.byteLength);\n\nconst utf8Length: (str: string, _?: any) => number = (hasBufferByteLength)\n ? Buffer.byteLength // node\n : function (str: string, _?: any) {\n var c = 0, length = 0;\n for (var i = 0, l = str.length; i < l; i++) {\n c = str.charCodeAt(i);\n if (c < 0x80) {\n length += 1;\n }\n else if (c < 0x800) {\n length += 2;\n }\n else if (c < 0xd800 || c >= 0xe000) {\n length += 3;\n }\n else {\n i++;\n length += 4;\n }\n }\n return length;\n }\n\nfunction utf8Write(view: BufferLike, str: string, it: Iterator) {\n var c = 0;\n for (var i = 0, l = str.length; i < l; i++) {\n c = str.charCodeAt(i);\n if (c < 0x80) {\n view[it.offset++] = c;\n }\n else if (c < 0x800) {\n view[it.offset] = 0xc0 | (c >> 6);\n view[it.offset + 1] = 0x80 | (c & 0x3f);\n it.offset += 2;\n }\n else if (c < 0xd800 || c >= 0xe000) {\n view[it.offset] = 0xe0 | (c >> 12);\n view[it.offset+1] = 0x80 | (c >> 6 & 0x3f);\n view[it.offset+2] = 0x80 | (c & 0x3f);\n it.offset += 3;\n }\n else {\n i++;\n c = 0x10000 + (((c & 0x3ff) << 10) | (str.charCodeAt(i) & 0x3ff));\n view[it.offset] = 0xf0 | (c >> 18);\n view[it.offset+1] = 0x80 | (c >> 12 & 0x3f);\n view[it.offset+2] = 0x80 | (c >> 6 & 0x3f);\n view[it.offset+3] = 0x80 | (c & 0x3f);\n it.offset += 4;\n }\n }\n}\n\nfunction int8(bytes: BufferLike, value: number, it: Iterator) {\n bytes[it.offset++] = value & 255;\n};\n\nfunction uint8(bytes: BufferLike, value: number, it: Iterator) {\n bytes[it.offset++] = value & 255;\n};\n\nfunction int16(bytes: BufferLike, value: number, it: Iterator) {\n bytes[it.offset++] = value & 255;\n bytes[it.offset++] = (value >> 8) & 255;\n};\n\nfunction uint16(bytes: BufferLike, value: number, it: Iterator) {\n bytes[it.offset++] = value & 255;\n bytes[it.offset++] = (value >> 8) & 255;\n};\n\nfunction int32(bytes: BufferLike, value: number, it: Iterator) {\n bytes[it.offset++] = value & 255;\n bytes[it.offset++] = (value >> 8) & 255;\n bytes[it.offset++] = (value >> 16) & 255;\n bytes[it.offset++] = (value >> 24) & 255;\n};\n\nfunction uint32(bytes: BufferLike, value: number, it: Iterator) {\n const b4 = value >> 24;\n const b3 = value >> 16;\n const b2 = value >> 8;\n const b1 = value;\n bytes[it.offset++] = b1 & 255;\n bytes[it.offset++] = b2 & 255;\n bytes[it.offset++] = b3 & 255;\n bytes[it.offset++] = b4 & 255;\n};\n\nfunction int64(bytes: BufferLike, value: number, it: Iterator) {\n const high = Math.floor(value / Math.pow(2, 32));\n const low = value >>> 0;\n uint32(bytes, low, it);\n uint32(bytes, high, it);\n};\n\nfunction uint64(bytes: BufferLike, value: number, it: Iterator) {\n const high = (value / Math.pow(2, 32)) >> 0;\n const low = value >>> 0;\n uint32(bytes, low, it);\n uint32(bytes, high, it);\n};\n\nfunction bigint64(bytes: BufferLike, value: bigint, it: Iterator) {\n _int64[0] = BigInt.asIntN(64, value);\n int32(bytes, _int32[0], it);\n int32(bytes, _int32[1], it);\n}\n\nfunction biguint64(bytes: BufferLike, value: bigint, it: Iterator) {\n _int64[0] = BigInt.asIntN(64, value);\n int32(bytes, _int32[0], it);\n int32(bytes, _int32[1], it);\n}\n\nfunction float32(bytes: BufferLike, value: number, it: Iterator) {\n _float32[0] = value;\n int32(bytes, _int32[0], it);\n}\n\nfunction float64(bytes: BufferLike, value: number, it: Iterator) {\n _float64[0] = value;\n int32(bytes, _int32[_isLittleEndian ? 0 : 1], it);\n int32(bytes, _int32[_isLittleEndian ? 1 : 0], it);\n}\n\nfunction boolean(bytes: BufferLike, value: number, it: Iterator) {\n bytes[it.offset++] = value ? 1 : 0; // uint8\n};\n\nfunction string(bytes: BufferLike, value: string, it: Iterator) {\n // encode `null` strings as empty.\n if (!value) { value = \"\"; }\n\n let length = utf8Length(value, \"utf8\");\n let size = 0;\n\n // fixstr\n if (length < 0x20) {\n bytes[it.offset++] = length | 0xa0;\n size = 1;\n }\n // str 8\n else if (length < 0x100) {\n bytes[it.offset++] = 0xd9;\n bytes[it.offset++] = length % 255;\n size = 2;\n }\n // str 16\n else if (length < 0x10000) {\n bytes[it.offset++] = 0xda;\n uint16(bytes, length, it);\n size = 3;\n }\n // str 32\n else if (length < 0x100000000) {\n bytes[it.offset++] = 0xdb;\n uint32(bytes, length, it);\n size = 5;\n } else {\n throw new Error('String too long');\n }\n\n utf8Write(bytes, value, it);\n\n return size + length;\n}\n\nfunction number(bytes: BufferLike, value: number, it: Iterator) {\n if (isNaN(value)) {\n return number(bytes, 0, it);\n\n } else if (!isFinite(value)) {\n return number(bytes, (value > 0) ? Number.MAX_SAFE_INTEGER : -Number.MAX_SAFE_INTEGER, it);\n\n } else if (value !== (value|0)) {\n if (Math.abs(value) <= 3.4028235e+38) { // range check\n _float32[0] = value;\n if (Math.abs(Math.abs(_float32[0]) - Math.abs(value)) < 1e-4) { // precision check; adjust 1e-n (n = precision) to in-/decrease acceptable precision loss\n // now we know value is in range for f32 and has acceptable precision for f32\n bytes[it.offset++] = 0xca;\n float32(bytes, value, it);\n return 5;\n }\n }\n\n bytes[it.offset++] = 0xcb;\n float64(bytes, value, it);\n return 9;\n }\n\n if (value >= 0) {\n // positive fixnum\n if (value < 0x80) {\n bytes[it.offset++] = value & 255; // uint8\n return 1;\n }\n\n // uint 8\n if (value < 0x100) {\n bytes[it.offset++] = 0xcc;\n bytes[it.offset++] = value & 255; // uint8\n return 2;\n }\n\n // uint 16\n if (value < 0x10000) {\n bytes[it.offset++] = 0xcd;\n uint16(bytes, value, it);\n return 3;\n }\n\n // uint 32\n if (value < 0x100000000) {\n bytes[it.offset++] = 0xce;\n uint32(bytes, value, it);\n return 5;\n }\n\n // uint 64\n bytes[it.offset++] = 0xcf;\n uint64(bytes, value, it);\n return 9;\n\n } else {\n\n // negative fixnum\n if (value >= -0x20) {\n bytes[it.offset++] = 0xe0 | (value + 0x20);\n return 1;\n }\n\n // int 8\n if (value >= -0x80) {\n bytes[it.offset++] = 0xd0;\n int8(bytes, value, it);\n return 2;\n }\n\n // int 16\n if (value >= -0x8000) {\n bytes[it.offset++] = 0xd1;\n int16(bytes, value, it);\n return 3;\n }\n\n // int 32\n if (value >= -0x80000000) {\n bytes[it.offset++] = 0xd2;\n int32(bytes, value, it);\n return 5;\n }\n\n // int 64\n bytes[it.offset++] = 0xd3;\n int64(bytes, value, it);\n return 9;\n }\n}\n\nexport const encode = {\n int8,\n uint8,\n int16,\n uint16,\n int32,\n uint32,\n int64,\n uint64,\n bigint64,\n biguint64,\n float32,\n float64,\n boolean,\n string,\n number,\n utf8Write,\n utf8Length,\n}"]}