svga-web-forked/dist/svga-web-forked.umd.cjs.map

A SVGA player for modern Web (forked from svga-web)

{"version":3,"file":"svga-web-forked.umd.cjs","sources":["../src/downloader.ts","../src/parser/version.ts","../node_modules/.pnpm/@protobufjs+aspromise@1.1.2/node_modules/@protobufjs/aspromise/index.js","../node_modules/.pnpm/@protobufjs+base64@1.1.2/node_modules/@protobufjs/base64/index.js","../node_modules/.pnpm/@protobufjs+eventemitter@1.1.0/node_modules/@protobufjs/eventemitter/index.js","../node_modules/.pnpm/@protobufjs+float@1.0.2/node_modules/@protobufjs/float/index.js","../node_modules/.pnpm/@protobufjs+inquire@1.1.0/node_modules/@protobufjs/inquire/index.js","../node_modules/.pnpm/@protobufjs+utf8@1.1.0/node_modules/@protobufjs/utf8/index.js","../node_modules/.pnpm/@protobufjs+pool@1.1.0/node_modules/@protobufjs/pool/index.js","../node_modules/.pnpm/protobufjs@7.3.2/node_modules/protobufjs/src/util/longbits.js","../node_modules/.pnpm/protobufjs@7.3.2/node_modules/protobufjs/src/util/minimal.js","../node_modules/.pnpm/protobufjs@7.3.2/node_modules/protobufjs/src/writer.js","../node_modules/.pnpm/protobufjs@7.3.2/node_modules/protobufjs/src/writer_buffer.js","../node_modules/.pnpm/protobufjs@7.3.2/node_modules/protobufjs/src/reader.js","../node_modules/.pnpm/protobufjs@7.3.2/node_modules/protobufjs/src/reader_buffer.js","../node_modules/.pnpm/protobufjs@7.3.2/node_modules/protobufjs/src/rpc/service.js","../node_modules/.pnpm/protobufjs@7.3.2/node_modules/protobufjs/src/rpc.js","../node_modules/.pnpm/protobufjs@7.3.2/node_modules/protobufjs/src/roots.js","../node_modules/.pnpm/protobufjs@7.3.2/node_modules/protobufjs/src/index-minimal.js","../node_modules/.pnpm/protobufjs@7.3.2/node_modules/protobufjs/minimal.js","../src/proto/svga.js","../src/parser/frame-entity.ts","../src/parser/video-entity.ts","../src/parser/index.ts","../src/player/path/index.ts","../src/player/path/ellipse-path.ts","../src/player/path/rect-path.ts","../src/player/path/bezier-path.ts","../src/player/offscreen.canvas.render.ts","../src/player/renderer.ts","../src/player/noop.ts","../src/player/animator.ts","../src/player/index.ts","../src/db.ts"],"sourcesContent":["export default class Downloader {\n  request: XMLHttpRequest | null\n\n  constructor() {\n    this.request = null\n  }\n\n  get(svgaResourceLink: string): Promise<ArrayBuffer> {\n    if (!svgaResourceLink) {\n      throw new Error('download link undefined')\n    }\n\n    return new Promise((resolve, reject) => {\n      const request = new XMLHttpRequest()\n\n      request.open('GET', svgaResourceLink, true)\n      request.responseType = 'arraybuffer'\n      request.onloadend = () => {\n        if (\n          request.response &&\n          (request.status === 200 || request.status === 304)\n        ) {\n          resolve(request.response)\n        } else {\n          reject(request)\n        }\n      }\n      request.onerror = () => reject(request.response)\n      request.send()\n\n      this.request = request\n    })\n  }\n\n  cancel(): void {\n    this.request && this.request.abort()\n  }\n\n  destroy(): void {\n    this.request && this.request.abort()\n  }\n}\n","export enum Version {\n  VERSION_1 = 1,\n  VERSION_2 = 2,\n}\n\nexport function getVersion(dataHeader: Uint8Array): Version {\n  if (\n    dataHeader[0] == 80 &&\n    dataHeader[1] == 75 &&\n    dataHeader[2] == 3 &&\n    dataHeader[3] == 4\n  ) {\n    return Version.VERSION_1\n  } else {\n    return Version.VERSION_2\n  }\n}\n","\"use strict\";\r\nmodule.exports = asPromise;\r\n\r\n/**\r\n * Callback as used by {@link util.asPromise}.\r\n * @typedef asPromiseCallback\r\n * @type {function}\r\n * @param {Error|null} error Error, if any\r\n * @param {...*} params Additional arguments\r\n * @returns {undefined}\r\n */\r\n\r\n/**\r\n * Returns a promise from a node-style callback function.\r\n * @memberof util\r\n * @param {asPromiseCallback} fn Function to call\r\n * @param {*} ctx Function context\r\n * @param {...*} params Function arguments\r\n * @returns {Promise<*>} Promisified function\r\n */\r\nfunction asPromise(fn, ctx/*, varargs */) {\r\n    var params  = new Array(arguments.length - 1),\r\n        offset  = 0,\r\n        index   = 2,\r\n        pending = true;\r\n    while (index < arguments.length)\r\n        params[offset++] = arguments[index++];\r\n    return new Promise(function executor(resolve, reject) {\r\n        params[offset] = function callback(err/*, varargs */) {\r\n            if (pending) {\r\n                pending = false;\r\n                if (err)\r\n                    reject(err);\r\n                else {\r\n                    var params = new Array(arguments.length - 1),\r\n                        offset = 0;\r\n                    while (offset < params.length)\r\n                        params[offset++] = arguments[offset];\r\n                    resolve.apply(null, params);\r\n                }\r\n            }\r\n        };\r\n        try {\r\n            fn.apply(ctx || null, params);\r\n        } catch (err) {\r\n            if (pending) {\r\n                pending = false;\r\n                reject(err);\r\n            }\r\n        }\r\n    });\r\n}\r\n","\"use strict\";\r\n\r\n/**\r\n * A minimal base64 implementation for number arrays.\r\n * @memberof util\r\n * @namespace\r\n */\r\nvar base64 = exports;\r\n\r\n/**\r\n * Calculates the byte length of a base64 encoded string.\r\n * @param {string} string Base64 encoded string\r\n * @returns {number} Byte length\r\n */\r\nbase64.length = function length(string) {\r\n    var p = string.length;\r\n    if (!p)\r\n        return 0;\r\n    var n = 0;\r\n    while (--p % 4 > 1 && string.charAt(p) === \"=\")\r\n        ++n;\r\n    return Math.ceil(string.length * 3) / 4 - n;\r\n};\r\n\r\n// Base64 encoding table\r\nvar b64 = new Array(64);\r\n\r\n// Base64 decoding table\r\nvar s64 = new Array(123);\r\n\r\n// 65..90, 97..122, 48..57, 43, 47\r\nfor (var i = 0; i < 64;)\r\n    s64[b64[i] = i < 26 ? i + 65 : i < 52 ? i + 71 : i < 62 ? i - 4 : i - 59 | 43] = i++;\r\n\r\n/**\r\n * Encodes a buffer to a base64 encoded string.\r\n * @param {Uint8Array} buffer Source buffer\r\n * @param {number} start Source start\r\n * @param {number} end Source end\r\n * @returns {string} Base64 encoded string\r\n */\r\nbase64.encode = function encode(buffer, start, end) {\r\n    var parts = null,\r\n        chunk = [];\r\n    var i = 0, // output index\r\n        j = 0, // goto index\r\n        t;     // temporary\r\n    while (start < end) {\r\n        var b = buffer[start++];\r\n        switch (j) {\r\n            case 0:\r\n                chunk[i++] = b64[b >> 2];\r\n                t = (b & 3) << 4;\r\n                j = 1;\r\n                break;\r\n            case 1:\r\n                chunk[i++] = b64[t | b >> 4];\r\n                t = (b & 15) << 2;\r\n                j = 2;\r\n                break;\r\n            case 2:\r\n                chunk[i++] = b64[t | b >> 6];\r\n                chunk[i++] = b64[b & 63];\r\n                j = 0;\r\n                break;\r\n        }\r\n        if (i > 8191) {\r\n            (parts || (parts = [])).push(String.fromCharCode.apply(String, chunk));\r\n            i = 0;\r\n        }\r\n    }\r\n    if (j) {\r\n        chunk[i++] = b64[t];\r\n        chunk[i++] = 61;\r\n        if (j === 1)\r\n            chunk[i++] = 61;\r\n    }\r\n    if (parts) {\r\n        if (i)\r\n            parts.push(String.fromCharCode.apply(String, chunk.slice(0, i)));\r\n        return parts.join(\"\");\r\n    }\r\n    return String.fromCharCode.apply(String, chunk.slice(0, i));\r\n};\r\n\r\nvar invalidEncoding = \"invalid encoding\";\r\n\r\n/**\r\n * Decodes a base64 encoded string to a buffer.\r\n * @param {string} string Source string\r\n * @param {Uint8Array} buffer Destination buffer\r\n * @param {number} offset Destination offset\r\n * @returns {number} Number of bytes written\r\n * @throws {Error} If encoding is invalid\r\n */\r\nbase64.decode = function decode(string, buffer, offset) {\r\n    var start = offset;\r\n    var j = 0, // goto index\r\n        t;     // temporary\r\n    for (var i = 0; i < string.length;) {\r\n        var c = string.charCodeAt(i++);\r\n        if (c === 61 && j > 1)\r\n            break;\r\n        if ((c = s64[c]) === undefined)\r\n            throw Error(invalidEncoding);\r\n        switch (j) {\r\n            case 0:\r\n                t = c;\r\n                j = 1;\r\n                break;\r\n            case 1:\r\n                buffer[offset++] = t << 2 | (c & 48) >> 4;\r\n                t = c;\r\n                j = 2;\r\n                break;\r\n            case 2:\r\n                buffer[offset++] = (t & 15) << 4 | (c & 60) >> 2;\r\n                t = c;\r\n                j = 3;\r\n                break;\r\n            case 3:\r\n                buffer[offset++] = (t & 3) << 6 | c;\r\n                j = 0;\r\n                break;\r\n        }\r\n    }\r\n    if (j === 1)\r\n        throw Error(invalidEncoding);\r\n    return offset - start;\r\n};\r\n\r\n/**\r\n * Tests if the specified string appears to be base64 encoded.\r\n * @param {string} string String to test\r\n * @returns {boolean} `true` if probably base64 encoded, otherwise false\r\n */\r\nbase64.test = function test(string) {\r\n    return /^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$/.test(string);\r\n};\r\n","\"use strict\";\r\nmodule.exports = EventEmitter;\r\n\r\n/**\r\n * Constructs a new event emitter instance.\r\n * @classdesc A minimal event emitter.\r\n * @memberof util\r\n * @constructor\r\n */\r\nfunction EventEmitter() {\r\n\r\n    /**\r\n     * Registered listeners.\r\n     * @type {Object.<string,*>}\r\n     * @private\r\n     */\r\n    this._listeners = {};\r\n}\r\n\r\n/**\r\n * Registers an event listener.\r\n * @param {string} evt Event name\r\n * @param {function} fn Listener\r\n * @param {*} [ctx] Listener context\r\n * @returns {util.EventEmitter} `this`\r\n */\r\nEventEmitter.prototype.on = function on(evt, fn, ctx) {\r\n    (this._listeners[evt] || (this._listeners[evt] = [])).push({\r\n        fn  : fn,\r\n        ctx : ctx || this\r\n    });\r\n    return this;\r\n};\r\n\r\n/**\r\n * Removes an event listener or any matching listeners if arguments are omitted.\r\n * @param {string} [evt] Event name. Removes all listeners if omitted.\r\n * @param {function} [fn] Listener to remove. Removes all listeners of `evt` if omitted.\r\n * @returns {util.EventEmitter} `this`\r\n */\r\nEventEmitter.prototype.off = function off(evt, fn) {\r\n    if (evt === undefined)\r\n        this._listeners = {};\r\n    else {\r\n        if (fn === undefined)\r\n            this._listeners[evt] = [];\r\n        else {\r\n            var listeners = this._listeners[evt];\r\n            for (var i = 0; i < listeners.length;)\r\n                if (listeners[i].fn === fn)\r\n                    listeners.splice(i, 1);\r\n                else\r\n                    ++i;\r\n        }\r\n    }\r\n    return this;\r\n};\r\n\r\n/**\r\n * Emits an event by calling its listeners with the specified arguments.\r\n * @param {string} evt Event name\r\n * @param {...*} args Arguments\r\n * @returns {util.EventEmitter} `this`\r\n */\r\nEventEmitter.prototype.emit = function emit(evt) {\r\n    var listeners = this._listeners[evt];\r\n    if (listeners) {\r\n        var args = [],\r\n            i = 1;\r\n        for (; i < arguments.length;)\r\n            args.push(arguments[i++]);\r\n        for (i = 0; i < listeners.length;)\r\n            listeners[i].fn.apply(listeners[i++].ctx, args);\r\n    }\r\n    return this;\r\n};\r\n","\"use strict\";\r\n\r\nmodule.exports = factory(factory);\r\n\r\n/**\r\n * Reads / writes floats / doubles from / to buffers.\r\n * @name util.float\r\n * @namespace\r\n */\r\n\r\n/**\r\n * Writes a 32 bit float to a buffer using little endian byte order.\r\n * @name util.float.writeFloatLE\r\n * @function\r\n * @param {number} val Value to write\r\n * @param {Uint8Array} buf Target buffer\r\n * @param {number} pos Target buffer offset\r\n * @returns {undefined}\r\n */\r\n\r\n/**\r\n * Writes a 32 bit float to a buffer using big endian byte order.\r\n * @name util.float.writeFloatBE\r\n * @function\r\n * @param {number} val Value to write\r\n * @param {Uint8Array} buf Target buffer\r\n * @param {number} pos Target buffer offset\r\n * @returns {undefined}\r\n */\r\n\r\n/**\r\n * Reads a 32 bit float from a buffer using little endian byte order.\r\n * @name util.float.readFloatLE\r\n * @function\r\n * @param {Uint8Array} buf Source buffer\r\n * @param {number} pos Source buffer offset\r\n * @returns {number} Value read\r\n */\r\n\r\n/**\r\n * Reads a 32 bit float from a buffer using big endian byte order.\r\n * @name util.float.readFloatBE\r\n * @function\r\n * @param {Uint8Array} buf Source buffer\r\n * @param {number} pos Source buffer offset\r\n * @returns {number} Value read\r\n */\r\n\r\n/**\r\n * Writes a 64 bit double to a buffer using little endian byte order.\r\n * @name util.float.writeDoubleLE\r\n * @function\r\n * @param {number} val Value to write\r\n * @param {Uint8Array} buf Target buffer\r\n * @param {number} pos Target buffer offset\r\n * @returns {undefined}\r\n */\r\n\r\n/**\r\n * Writes a 64 bit double to a buffer using big endian byte order.\r\n * @name util.float.writeDoubleBE\r\n * @function\r\n * @param {number} val Value to write\r\n * @param {Uint8Array} buf Target buffer\r\n * @param {number} pos Target buffer offset\r\n * @returns {undefined}\r\n */\r\n\r\n/**\r\n * Reads a 64 bit double from a buffer using little endian byte order.\r\n * @name util.float.readDoubleLE\r\n * @function\r\n * @param {Uint8Array} buf Source buffer\r\n * @param {number} pos Source buffer offset\r\n * @returns {number} Value read\r\n */\r\n\r\n/**\r\n * Reads a 64 bit double from a buffer using big endian byte order.\r\n * @name util.float.readDoubleBE\r\n * @function\r\n * @param {Uint8Array} buf Source buffer\r\n * @param {number} pos Source buffer offset\r\n * @returns {number} Value read\r\n */\r\n\r\n// Factory function for the purpose of node-based testing in modified global environments\r\nfunction factory(exports) {\r\n\r\n    // float: typed array\r\n    if (typeof Float32Array !== \"undefined\") (function() {\r\n\r\n        var f32 = new Float32Array([ -0 ]),\r\n            f8b = new Uint8Array(f32.buffer),\r\n            le  = f8b[3] === 128;\r\n\r\n        function writeFloat_f32_cpy(val, buf, pos) {\r\n            f32[0] = val;\r\n            buf[pos    ] = f8b[0];\r\n            buf[pos + 1] = f8b[1];\r\n            buf[pos + 2] = f8b[2];\r\n            buf[pos + 3] = f8b[3];\r\n        }\r\n\r\n        function writeFloat_f32_rev(val, buf, pos) {\r\n            f32[0] = val;\r\n            buf[pos    ] = f8b[3];\r\n            buf[pos + 1] = f8b[2];\r\n            buf[pos + 2] = f8b[1];\r\n            buf[pos + 3] = f8b[0];\r\n        }\r\n\r\n        /* istanbul ignore next */\r\n        exports.writeFloatLE = le ? writeFloat_f32_cpy : writeFloat_f32_rev;\r\n        /* istanbul ignore next */\r\n        exports.writeFloatBE = le ? writeFloat_f32_rev : writeFloat_f32_cpy;\r\n\r\n        function readFloat_f32_cpy(buf, pos) {\r\n            f8b[0] = buf[pos    ];\r\n            f8b[1] = buf[pos + 1];\r\n            f8b[2] = buf[pos + 2];\r\n            f8b[3] = buf[pos + 3];\r\n            return f32[0];\r\n        }\r\n\r\n        function readFloat_f32_rev(buf, pos) {\r\n            f8b[3] = buf[pos    ];\r\n            f8b[2] = buf[pos + 1];\r\n            f8b[1] = buf[pos + 2];\r\n            f8b[0] = buf[pos + 3];\r\n            return f32[0];\r\n        }\r\n\r\n        /* istanbul ignore next */\r\n        exports.readFloatLE = le ? readFloat_f32_cpy : readFloat_f32_rev;\r\n        /* istanbul ignore next */\r\n        exports.readFloatBE = le ? readFloat_f32_rev : readFloat_f32_cpy;\r\n\r\n    // float: ieee754\r\n    })(); else (function() {\r\n\r\n        function writeFloat_ieee754(writeUint, val, buf, pos) {\r\n            var sign = val < 0 ? 1 : 0;\r\n            if (sign)\r\n                val = -val;\r\n            if (val === 0)\r\n                writeUint(1 / val > 0 ? /* positive */ 0 : /* negative 0 */ 2147483648, buf, pos);\r\n            else if (isNaN(val))\r\n                writeUint(2143289344, buf, pos);\r\n            else if (val > 3.4028234663852886e+38) // +-Infinity\r\n                writeUint((sign << 31 | 2139095040) >>> 0, buf, pos);\r\n            else if (val < 1.1754943508222875e-38) // denormal\r\n                writeUint((sign << 31 | Math.round(val / 1.401298464324817e-45)) >>> 0, buf, pos);\r\n            else {\r\n                var exponent = Math.floor(Math.log(val) / Math.LN2),\r\n                    mantissa = Math.round(val * Math.pow(2, -exponent) * 8388608) & 8388607;\r\n                writeUint((sign << 31 | exponent + 127 << 23 | mantissa) >>> 0, buf, pos);\r\n            }\r\n        }\r\n\r\n        exports.writeFloatLE = writeFloat_ieee754.bind(null, writeUintLE);\r\n        exports.writeFloatBE = writeFloat_ieee754.bind(null, writeUintBE);\r\n\r\n        function readFloat_ieee754(readUint, buf, pos) {\r\n            var uint = readUint(buf, pos),\r\n                sign = (uint >> 31) * 2 + 1,\r\n                exponent = uint >>> 23 & 255,\r\n                mantissa = uint & 8388607;\r\n            return exponent === 255\r\n                ? mantissa\r\n                ? NaN\r\n                : sign * Infinity\r\n                : exponent === 0 // denormal\r\n                ? sign * 1.401298464324817e-45 * mantissa\r\n                : sign * Math.pow(2, exponent - 150) * (mantissa + 8388608);\r\n        }\r\n\r\n        exports.readFloatLE = readFloat_ieee754.bind(null, readUintLE);\r\n        exports.readFloatBE = readFloat_ieee754.bind(null, readUintBE);\r\n\r\n    })();\r\n\r\n    // double: typed array\r\n    if (typeof Float64Array !== \"undefined\") (function() {\r\n\r\n        var f64 = new Float64Array([-0]),\r\n            f8b = new Uint8Array(f64.buffer),\r\n            le  = f8b[7] === 128;\r\n\r\n        function writeDouble_f64_cpy(val, buf, pos) {\r\n            f64[0] = val;\r\n            buf[pos    ] = f8b[0];\r\n            buf[pos + 1] = f8b[1];\r\n            buf[pos + 2] = f8b[2];\r\n            buf[pos + 3] = f8b[3];\r\n            buf[pos + 4] = f8b[4];\r\n            buf[pos + 5] = f8b[5];\r\n            buf[pos + 6] = f8b[6];\r\n            buf[pos + 7] = f8b[7];\r\n        }\r\n\r\n        function writeDouble_f64_rev(val, buf, pos) {\r\n            f64[0] = val;\r\n            buf[pos    ] = f8b[7];\r\n            buf[pos + 1] = f8b[6];\r\n            buf[pos + 2] = f8b[5];\r\n            buf[pos + 3] = f8b[4];\r\n            buf[pos + 4] = f8b[3];\r\n            buf[pos + 5] = f8b[2];\r\n            buf[pos + 6] = f8b[1];\r\n            buf[pos + 7] = f8b[0];\r\n        }\r\n\r\n        /* istanbul ignore next */\r\n        exports.writeDoubleLE = le ? writeDouble_f64_cpy : writeDouble_f64_rev;\r\n        /* istanbul ignore next */\r\n        exports.writeDoubleBE = le ? writeDouble_f64_rev : writeDouble_f64_cpy;\r\n\r\n        function readDouble_f64_cpy(buf, pos) {\r\n            f8b[0] = buf[pos    ];\r\n            f8b[1] = buf[pos + 1];\r\n            f8b[2] = buf[pos + 2];\r\n            f8b[3] = buf[pos + 3];\r\n            f8b[4] = buf[pos + 4];\r\n            f8b[5] = buf[pos + 5];\r\n            f8b[6] = buf[pos + 6];\r\n            f8b[7] = buf[pos + 7];\r\n            return f64[0];\r\n        }\r\n\r\n        function readDouble_f64_rev(buf, pos) {\r\n            f8b[7] = buf[pos    ];\r\n            f8b[6] = buf[pos + 1];\r\n            f8b[5] = buf[pos + 2];\r\n            f8b[4] = buf[pos + 3];\r\n            f8b[3] = buf[pos + 4];\r\n            f8b[2] = buf[pos + 5];\r\n            f8b[1] = buf[pos + 6];\r\n            f8b[0] = buf[pos + 7];\r\n            return f64[0];\r\n        }\r\n\r\n        /* istanbul ignore next */\r\n        exports.readDoubleLE = le ? readDouble_f64_cpy : readDouble_f64_rev;\r\n        /* istanbul ignore next */\r\n        exports.readDoubleBE = le ? readDouble_f64_rev : readDouble_f64_cpy;\r\n\r\n    // double: ieee754\r\n    })(); else (function() {\r\n\r\n        function writeDouble_ieee754(writeUint, off0, off1, val, buf, pos) {\r\n            var sign = val < 0 ? 1 : 0;\r\n            if (sign)\r\n                val = -val;\r\n            if (val === 0) {\r\n                writeUint(0, buf, pos + off0);\r\n                writeUint(1 / val > 0 ? /* positive */ 0 : /* negative 0 */ 2147483648, buf, pos + off1);\r\n            } else if (isNaN(val)) {\r\n                writeUint(0, buf, pos + off0);\r\n                writeUint(2146959360, buf, pos + off1);\r\n            } else if (val > 1.7976931348623157e+308) { // +-Infinity\r\n                writeUint(0, buf, pos + off0);\r\n                writeUint((sign << 31 | 2146435072) >>> 0, buf, pos + off1);\r\n            } else {\r\n                var mantissa;\r\n                if (val < 2.2250738585072014e-308) { // denormal\r\n                    mantissa = val / 5e-324;\r\n                    writeUint(mantissa >>> 0, buf, pos + off0);\r\n                    writeUint((sign << 31 | mantissa / 4294967296) >>> 0, buf, pos + off1);\r\n                } else {\r\n                    var exponent = Math.floor(Math.log(val) / Math.LN2);\r\n                    if (exponent === 1024)\r\n                        exponent = 1023;\r\n                    mantissa = val * Math.pow(2, -exponent);\r\n                    writeUint(mantissa * 4503599627370496 >>> 0, buf, pos + off0);\r\n                    writeUint((sign << 31 | exponent + 1023 << 20 | mantissa * 1048576 & 1048575) >>> 0, buf, pos + off1);\r\n                }\r\n            }\r\n        }\r\n\r\n        exports.writeDoubleLE = writeDouble_ieee754.bind(null, writeUintLE, 0, 4);\r\n        exports.writeDoubleBE = writeDouble_ieee754.bind(null, writeUintBE, 4, 0);\r\n\r\n        function readDouble_ieee754(readUint, off0, off1, buf, pos) {\r\n            var lo = readUint(buf, pos + off0),\r\n                hi = readUint(buf, pos + off1);\r\n            var sign = (hi >> 31) * 2 + 1,\r\n                exponent = hi >>> 20 & 2047,\r\n                mantissa = 4294967296 * (hi & 1048575) + lo;\r\n            return exponent === 2047\r\n                ? mantissa\r\n                ? NaN\r\n                : sign * Infinity\r\n                : exponent === 0 // denormal\r\n                ? sign * 5e-324 * mantissa\r\n                : sign * Math.pow(2, exponent - 1075) * (mantissa + 4503599627370496);\r\n        }\r\n\r\n        exports.readDoubleLE = readDouble_ieee754.bind(null, readUintLE, 0, 4);\r\n        exports.readDoubleBE = readDouble_ieee754.bind(null, readUintBE, 4, 0);\r\n\r\n    })();\r\n\r\n    return exports;\r\n}\r\n\r\n// uint helpers\r\n\r\nfunction writeUintLE(val, buf, pos) {\r\n    buf[pos    ] =  val        & 255;\r\n    buf[pos + 1] =  val >>> 8  & 255;\r\n    buf[pos + 2] =  val >>> 16 & 255;\r\n    buf[pos + 3] =  val >>> 24;\r\n}\r\n\r\nfunction writeUintBE(val, buf, pos) {\r\n    buf[pos    ] =  val >>> 24;\r\n    buf[pos + 1] =  val >>> 16 & 255;\r\n    buf[pos + 2] =  val >>> 8  & 255;\r\n    buf[pos + 3] =  val        & 255;\r\n}\r\n\r\nfunction readUintLE(buf, pos) {\r\n    return (buf[pos    ]\r\n          | buf[pos + 1] << 8\r\n          | buf[pos + 2] << 16\r\n          | buf[pos + 3] << 24) >>> 0;\r\n}\r\n\r\nfunction readUintBE(buf, pos) {\r\n    return (buf[pos    ] << 24\r\n          | buf[pos + 1] << 16\r\n          | buf[pos + 2] << 8\r\n          | buf[pos + 3]) >>> 0;\r\n}\r\n","\"use strict\";\r\nmodule.exports = inquire;\r\n\r\n/**\r\n * Requires a module only if available.\r\n * @memberof util\r\n * @param {string} moduleName Module to require\r\n * @returns {?Object} Required module if available and not empty, otherwise `null`\r\n */\r\nfunction inquire(moduleName) {\r\n    try {\r\n        var mod = eval(\"quire\".replace(/^/,\"re\"))(moduleName); // eslint-disable-line no-eval\r\n        if (mod && (mod.length || Object.keys(mod).length))\r\n            return mod;\r\n    } catch (e) {} // eslint-disable-line no-empty\r\n    return null;\r\n}\r\n","\"use strict\";\r\n\r\n/**\r\n * A minimal UTF8 implementation for number arrays.\r\n * @memberof util\r\n * @namespace\r\n */\r\nvar utf8 = exports;\r\n\r\n/**\r\n * Calculates the UTF8 byte length of a string.\r\n * @param {string} string String\r\n * @returns {number} Byte length\r\n */\r\nutf8.length = function utf8_length(string) {\r\n    var len = 0,\r\n        c = 0;\r\n    for (var i = 0; i < string.length; ++i) {\r\n        c = string.charCodeAt(i);\r\n        if (c < 128)\r\n            len += 1;\r\n        else if (c < 2048)\r\n            len += 2;\r\n        else if ((c & 0xFC00) === 0xD800 && (string.charCodeAt(i + 1) & 0xFC00) === 0xDC00) {\r\n            ++i;\r\n            len += 4;\r\n        } else\r\n            len += 3;\r\n    }\r\n    return len;\r\n};\r\n\r\n/**\r\n * Reads UTF8 bytes as a string.\r\n * @param {Uint8Array} buffer Source buffer\r\n * @param {number} start Source start\r\n * @param {number} end Source end\r\n * @returns {string} String read\r\n */\r\nutf8.read = function utf8_read(buffer, start, end) {\r\n    var len = end - start;\r\n    if (len < 1)\r\n        return \"\";\r\n    var parts = null,\r\n        chunk = [],\r\n        i = 0, // char offset\r\n        t;     // temporary\r\n    while (start < end) {\r\n        t = buffer[start++];\r\n        if (t < 128)\r\n            chunk[i++] = t;\r\n        else if (t > 191 && t < 224)\r\n            chunk[i++] = (t & 31) << 6 | buffer[start++] & 63;\r\n        else if (t > 239 && t < 365) {\r\n            t = ((t & 7) << 18 | (buffer[start++] & 63) << 12 | (buffer[start++] & 63) << 6 | buffer[start++] & 63) - 0x10000;\r\n            chunk[i++] = 0xD800 + (t >> 10);\r\n            chunk[i++] = 0xDC00 + (t & 1023);\r\n        } else\r\n            chunk[i++] = (t & 15) << 12 | (buffer[start++] & 63) << 6 | buffer[start++] & 63;\r\n        if (i > 8191) {\r\n            (parts || (parts = [])).push(String.fromCharCode.apply(String, chunk));\r\n            i = 0;\r\n        }\r\n    }\r\n    if (parts) {\r\n        if (i)\r\n            parts.push(String.fromCharCode.apply(String, chunk.slice(0, i)));\r\n        return parts.join(\"\");\r\n    }\r\n    return String.fromCharCode.apply(String, chunk.slice(0, i));\r\n};\r\n\r\n/**\r\n * Writes a string as UTF8 bytes.\r\n * @param {string} string Source string\r\n * @param {Uint8Array} buffer Destination buffer\r\n * @param {number} offset Destination offset\r\n * @returns {number} Bytes written\r\n */\r\nutf8.write = function utf8_write(string, buffer, offset) {\r\n    var start = offset,\r\n        c1, // character 1\r\n        c2; // character 2\r\n    for (var i = 0; i < string.length; ++i) {\r\n        c1 = string.charCodeAt(i);\r\n        if (c1 < 128) {\r\n            buffer[offset++] = c1;\r\n        } else if (c1 < 2048) {\r\n            buffer[offset++] = c1 >> 6       | 192;\r\n            buffer[offset++] = c1       & 63 | 128;\r\n        } else if ((c1 & 0xFC00) === 0xD800 && ((c2 = string.charCodeAt(i + 1)) & 0xFC00) === 0xDC00) {\r\n            c1 = 0x10000 + ((c1 & 0x03FF) << 10) + (c2 & 0x03FF);\r\n            ++i;\r\n            buffer[offset++] = c1 >> 18      | 240;\r\n            buffer[offset++] = c1 >> 12 & 63 | 128;\r\n            buffer[offset++] = c1 >> 6  & 63 | 128;\r\n            buffer[offset++] = c1       & 63 | 128;\r\n        } else {\r\n            buffer[offset++] = c1 >> 12      | 224;\r\n            buffer[offset++] = c1 >> 6  & 63 | 128;\r\n            buffer[offset++] = c1       & 63 | 128;\r\n        }\r\n    }\r\n    return offset - start;\r\n};\r\n","\"use strict\";\r\nmodule.exports = pool;\r\n\r\n/**\r\n * An allocator as used by {@link util.pool}.\r\n * @typedef PoolAllocator\r\n * @type {function}\r\n * @param {number} size Buffer size\r\n * @returns {Uint8Array} Buffer\r\n */\r\n\r\n/**\r\n * A slicer as used by {@link util.pool}.\r\n * @typedef PoolSlicer\r\n * @type {function}\r\n * @param {number} start Start offset\r\n * @param {number} end End offset\r\n * @returns {Uint8Array} Buffer slice\r\n * @this {Uint8Array}\r\n */\r\n\r\n/**\r\n * A general purpose buffer pool.\r\n * @memberof util\r\n * @function\r\n * @param {PoolAllocator} alloc Allocator\r\n * @param {PoolSlicer} slice Slicer\r\n * @param {number} [size=8192] Slab size\r\n * @returns {PoolAllocator} Pooled allocator\r\n */\r\nfunction pool(alloc, slice, size) {\r\n    var SIZE   = size || 8192;\r\n    var MAX    = SIZE >>> 1;\r\n    var slab   = null;\r\n    var offset = SIZE;\r\n    return function pool_alloc(size) {\r\n        if (size < 1 || size > MAX)\r\n            return alloc(size);\r\n        if (offset + size > SIZE) {\r\n            slab = alloc(SIZE);\r\n            offset = 0;\r\n        }\r\n        var buf = slice.call(slab, offset, offset += size);\r\n        if (offset & 7) // align to 32 bit\r\n            offset = (offset | 7) + 1;\r\n        return buf;\r\n    };\r\n}\r\n","\"use strict\";\r\nmodule.exports = LongBits;\r\n\r\nvar util = require(\"../util/minimal\");\r\n\r\n/**\r\n * Constructs new long bits.\r\n * @classdesc Helper class for working with the low and high bits of a 64 bit value.\r\n * @memberof util\r\n * @constructor\r\n * @param {number} lo Low 32 bits, unsigned\r\n * @param {number} hi High 32 bits, unsigned\r\n */\r\nfunction LongBits(lo, hi) {\r\n\r\n    // note that the casts below are theoretically unnecessary as of today, but older statically\r\n    // generated converter code might still call the ctor with signed 32bits. kept for compat.\r\n\r\n    /**\r\n     * Low bits.\r\n     * @type {number}\r\n     */\r\n    this.lo = lo >>> 0;\r\n\r\n    /**\r\n     * High bits.\r\n     * @type {number}\r\n     */\r\n    this.hi = hi >>> 0;\r\n}\r\n\r\n/**\r\n * Zero bits.\r\n * @memberof util.LongBits\r\n * @type {util.LongBits}\r\n */\r\nvar zero = LongBits.zero = new LongBits(0, 0);\r\n\r\nzero.toNumber = function() { return 0; };\r\nzero.zzEncode = zero.zzDecode = function() { return this; };\r\nzero.length = function() { return 1; };\r\n\r\n/**\r\n * Zero hash.\r\n * @memberof util.LongBits\r\n * @type {string}\r\n */\r\nvar zeroHash = LongBits.zeroHash = \"\\0\\0\\0\\0\\0\\0\\0\\0\";\r\n\r\n/**\r\n * Constructs new long bits from the specified number.\r\n * @param {number} value Value\r\n * @returns {util.LongBits} Instance\r\n */\r\nLongBits.fromNumber = function fromNumber(value) {\r\n    if (value === 0)\r\n        return zero;\r\n    var sign = value < 0;\r\n    if (sign)\r\n        value = -value;\r\n    var lo = value >>> 0,\r\n        hi = (value - lo) / 4294967296 >>> 0;\r\n    if (sign) {\r\n        hi = ~hi >>> 0;\r\n        lo = ~lo >>> 0;\r\n        if (++lo > 4294967295) {\r\n            lo = 0;\r\n            if (++hi > 4294967295)\r\n                hi = 0;\r\n        }\r\n    }\r\n    return new LongBits(lo, hi);\r\n};\r\n\r\n/**\r\n * Constructs new long bits from a number, long or string.\r\n * @param {Long|number|string} value Value\r\n * @returns {util.LongBits} Instance\r\n */\r\nLongBits.from = function from(value) {\r\n    if (typeof value === \"number\")\r\n        return LongBits.fromNumber(value);\r\n    if (util.isString(value)) {\r\n        /* istanbul ignore else */\r\n        if (util.Long)\r\n            value = util.Long.fromString(value);\r\n        else\r\n            return LongBits.fromNumber(parseInt(value, 10));\r\n    }\r\n    return value.low || value.high ? new LongBits(value.low >>> 0, value.high >>> 0) : zero;\r\n};\r\n\r\n/**\r\n * Converts this long bits to a possibly unsafe JavaScript number.\r\n * @param {boolean} [unsigned=false] Whether unsigned or not\r\n * @returns {number} Possibly unsafe number\r\n */\r\nLongBits.prototype.toNumber = function toNumber(unsigned) {\r\n    if (!unsigned && this.hi >>> 31) {\r\n        var lo = ~this.lo + 1 >>> 0,\r\n            hi = ~this.hi     >>> 0;\r\n        if (!lo)\r\n            hi = hi + 1 >>> 0;\r\n        return -(lo + hi * 4294967296);\r\n    }\r\n    return this.lo + this.hi * 4294967296;\r\n};\r\n\r\n/**\r\n * Converts this long bits to a long.\r\n * @param {boolean} [unsigned=false] Whether unsigned or not\r\n * @returns {Long} Long\r\n */\r\nLongBits.prototype.toLong = function toLong(unsigned) {\r\n    return util.Long\r\n        ? new util.Long(this.lo | 0, this.hi | 0, Boolean(unsigned))\r\n        /* istanbul ignore next */\r\n        : { low: this.lo | 0, high: this.hi | 0, unsigned: Boolean(unsigned) };\r\n};\r\n\r\nvar charCodeAt = String.prototype.charCodeAt;\r\n\r\n/**\r\n * Constructs new long bits from the specified 8 characters long hash.\r\n * @param {string} hash Hash\r\n * @returns {util.LongBits} Bits\r\n */\r\nLongBits.fromHash = function fromHash(hash) {\r\n    if (hash === zeroHash)\r\n        return zero;\r\n    return new LongBits(\r\n        ( charCodeAt.call(hash, 0)\r\n        | charCodeAt.call(hash, 1) << 8\r\n        | charCodeAt.call(hash, 2) << 16\r\n        | charCodeAt.call(hash, 3) << 24) >>> 0\r\n    ,\r\n        ( charCodeAt.call(hash, 4)\r\n        | charCodeAt.call(hash, 5) << 8\r\n        | charCodeAt.call(hash, 6) << 16\r\n        | charCodeAt.call(hash, 7) << 24) >>> 0\r\n    );\r\n};\r\n\r\n/**\r\n * Converts this long bits to a 8 characters long hash.\r\n * @returns {string} Hash\r\n */\r\nLongBits.prototype.toHash = function toHash() {\r\n    return String.fromCharCode(\r\n        this.lo        & 255,\r\n        this.lo >>> 8  & 255,\r\n        this.lo >>> 16 & 255,\r\n        this.lo >>> 24      ,\r\n        this.hi        & 255,\r\n        this.hi >>> 8  & 255,\r\n        this.hi >>> 16 & 255,\r\n        this.hi >>> 24\r\n    );\r\n};\r\n\r\n/**\r\n * Zig-zag encodes this long bits.\r\n * @returns {util.LongBits} `this`\r\n */\r\nLongBits.prototype.zzEncode = function zzEncode() {\r\n    var mask =   this.hi >> 31;\r\n    this.hi  = ((this.hi << 1 | this.lo >>> 31) ^ mask) >>> 0;\r\n    this.lo  = ( this.lo << 1                   ^ mask) >>> 0;\r\n    return this;\r\n};\r\n\r\n/**\r\n * Zig-zag decodes this long bits.\r\n * @returns {util.LongBits} `this`\r\n */\r\nLongBits.prototype.zzDecode = function zzDecode() {\r\n    var mask = -(this.lo & 1);\r\n    this.lo  = ((this.lo >>> 1 | this.hi << 31) ^ mask) >>> 0;\r\n    this.hi  = ( this.hi >>> 1                  ^ mask) >>> 0;\r\n    return this;\r\n};\r\n\r\n/**\r\n * Calculates the length of this longbits when encoded as a varint.\r\n * @returns {number} Length\r\n */\r\nLongBits.prototype.length = function length() {\r\n    var part0 =  this.lo,\r\n        part1 = (this.lo >>> 28 | this.hi << 4) >>> 0,\r\n        part2 =  this.hi >>> 24;\r\n    return part2 === 0\r\n         ? part1 === 0\r\n           ? part0 < 16384\r\n             ? part0 < 128 ? 1 : 2\r\n             : part0 < 2097152 ? 3 : 4\r\n           : part1 < 16384\r\n             ? part1 < 128 ? 5 : 6\r\n             : part1 < 2097152 ? 7 : 8\r\n         : part2 < 128 ? 9 : 10;\r\n};\r\n","\"use strict\";\r\nvar util = exports;\r\n\r\n// used to return a Promise where callback is omitted\r\nutil.asPromise = require(\"@protobufjs/aspromise\");\r\n\r\n// converts to / from base64 encoded strings\r\nutil.base64 = require(\"@protobufjs/base64\");\r\n\r\n// base class of rpc.Service\r\nutil.EventEmitter = require(\"@protobufjs/eventemitter\");\r\n\r\n// float handling accross browsers\r\nutil.float = require(\"@protobufjs/float\");\r\n\r\n// requires modules optionally and hides the call from bundlers\r\nutil.inquire = require(\"@protobufjs/inquire\");\r\n\r\n// converts to / from utf8 encoded strings\r\nutil.utf8 = require(\"@protobufjs/utf8\");\r\n\r\n// provides a node-like buffer pool in the browser\r\nutil.pool = require(\"@protobufjs/pool\");\r\n\r\n// utility to work with the low and high bits of a 64 bit value\r\nutil.LongBits = require(\"./longbits\");\r\n\r\n/**\r\n * Whether running within node or not.\r\n * @memberof util\r\n * @type {boolean}\r\n */\r\nutil.isNode = Boolean(typeof global !== \"undefined\"\r\n                   && global\r\n                   && global.process\r\n                   && global.process.versions\r\n                   && global.process.versions.node);\r\n\r\n/**\r\n * Global object reference.\r\n * @memberof util\r\n * @type {Object}\r\n */\r\nutil.global = util.isNode && global\r\n           || typeof window !== \"undefined\" && window\r\n           || typeof self   !== \"undefined\" && self\r\n           || this; // eslint-disable-line no-invalid-this\r\n\r\n/**\r\n * An immuable empty array.\r\n * @memberof util\r\n * @type {Array.<*>}\r\n * @const\r\n */\r\nutil.emptyArray = Object.freeze ? Object.freeze([]) : /* istanbul ignore next */ []; // used on prototypes\r\n\r\n/**\r\n * An immutable empty object.\r\n * @type {Object}\r\n * @const\r\n */\r\nutil.emptyObject = Object.freeze ? Object.freeze({}) : /* istanbul ignore next */ {}; // used on prototypes\r\n\r\n/**\r\n * Tests if the specified value is an integer.\r\n * @function\r\n * @param {*} value Value to test\r\n * @returns {boolean} `true` if the value is an integer\r\n */\r\nutil.isInteger = Number.isInteger || /* istanbul ignore next */ function isInteger(value) {\r\n    return typeof value === \"number\" && isFinite(value) && Math.floor(value) === value;\r\n};\r\n\r\n/**\r\n * Tests if the specified value is a string.\r\n * @param {*} value Value to test\r\n * @returns {boolean} `true` if the value is a string\r\n */\r\nutil.isString = function isString(value) {\r\n    return typeof value === \"string\" || value instanceof String;\r\n};\r\n\r\n/**\r\n * Tests if the specified value is a non-null object.\r\n * @param {*} value Value to test\r\n * @returns {boolean} `true` if the value is a non-null object\r\n */\r\nutil.isObject = function isObject(value) {\r\n    return value && typeof value === \"object\";\r\n};\r\n\r\n/**\r\n * Checks if a property on a message is considered to be present.\r\n * This is an alias of {@link util.isSet}.\r\n * @function\r\n * @param {Object} obj Plain object or message instance\r\n * @param {string} prop Property name\r\n * @returns {boolean} `true` if considered to be present, otherwise `false`\r\n */\r\nutil.isset =\r\n\r\n/**\r\n * Checks if a property on a message is considered to be present.\r\n * @param {Object} obj Plain object or message instance\r\n * @param {string} prop Property name\r\n * @returns {boolean} `true` if considered to be present, otherwise `false`\r\n */\r\nutil.isSet = function isSet(obj, prop) {\r\n    var value = obj[prop];\r\n    if (value != null && obj.hasOwnProperty(prop)) // eslint-disable-line eqeqeq, no-prototype-builtins\r\n        return typeof value !== \"object\" || (Array.isArray(value) ? value.length : Object.keys(value).length) > 0;\r\n    return false;\r\n};\r\n\r\n/**\r\n * Any compatible Buffer instance.\r\n * This is a minimal stand-alone definition of a Buffer instance. The actual type is that exported by node's typings.\r\n * @interface Buffer\r\n * @extends Uint8Array\r\n */\r\n\r\n/**\r\n * Node's Buffer class if available.\r\n * @type {Constructor<Buffer>}\r\n */\r\nutil.Buffer = (function() {\r\n    try {\r\n        var Buffer = util.inquire(\"buffer\").Buffer;\r\n        // refuse to use non-node buffers if not explicitly assigned (perf reasons):\r\n        return Buffer.prototype.utf8Write ? Buffer : /* istanbul ignore next */ null;\r\n    } catch (e) {\r\n        /* istanbul ignore next */\r\n        return null;\r\n    }\r\n})();\r\n\r\n// Internal alias of or polyfull for Buffer.from.\r\nutil._Buffer_from = null;\r\n\r\n// Internal alias of or polyfill for Buffer.allocUnsafe.\r\nutil._Buffer_allocUnsafe = null;\r\n\r\n/**\r\n * Creates a new buffer of whatever type supported by the environment.\r\n * @param {number|number[]} [sizeOrArray=0] Buffer size or number array\r\n * @returns {Uint8Array|Buffer} Buffer\r\n */\r\nutil.newBuffer = function newBuffer(sizeOrArray) {\r\n    /* istanbul ignore next */\r\n    return typeof sizeOrArray === \"number\"\r\n        ? util.Buffer\r\n            ? util._Buffer_allocUnsafe(sizeOrArray)\r\n            : new util.Array(sizeOrArray)\r\n        : util.Buffer\r\n            ? util._Buffer_from(sizeOrArray)\r\n            : typeof Uint8Array === \"undefined\"\r\n                ? sizeOrArray\r\n                : new Uint8Array(sizeOrArray);\r\n};\r\n\r\n/**\r\n * Array implementation used in the browser. `Uint8Array` if supported, otherwise `Array`.\r\n * @type {Constructor<Uint8Array>}\r\n */\r\nutil.Array = typeof Uint8Array !== \"undefined\" ? Uint8Array /* istanbul ignore next */ : Array;\r\n\r\n/**\r\n * Any compatible Long instance.\r\n * This is a minimal stand-alone definition of a Long instance. The actual type is that exported by long.js.\r\n * @interface Long\r\n * @property {number} low Low bits\r\n * @property {number} high High bits\r\n * @property {boolean} unsigned Whether unsigned or not\r\n */\r\n\r\n/**\r\n * Long.js's Long class if available.\r\n * @type {Constructor<Long>}\r\n */\r\nutil.Long = /* istanbul ignore next */ util.global.dcodeIO && /* istanbul ignore next */ util.global.dcodeIO.Long\r\n         || /* istanbul ignore next */ util.global.Long\r\n         || util.inquire(\"long\");\r\n\r\n/**\r\n * Regular expression used to verify 2 bit (`bool`) map keys.\r\n * @type {RegExp}\r\n * @const\r\n */\r\nutil.key2Re = /^true|false|0|1$/;\r\n\r\n/**\r\n * Regular expression used to verify 32 bit (`int32` etc.) map keys.\r\n * @type {RegExp}\r\n * @const\r\n */\r\nutil.key32Re = /^-?(?:0|[1-9][0-9]*)$/;\r\n\r\n/**\r\n * Regular expression used to verify 64 bit (`int64` etc.) map keys.\r\n * @type {RegExp}\r\n * @const\r\n */\r\nutil.key64Re = /^(?:[\\\\x00-\\\\xff]{8}|-?(?:0|[1-9][0-9]*))$/;\r\n\r\n/**\r\n * Converts a number or long to an 8 characters long hash string.\r\n * @param {Long|number} value Value to convert\r\n * @returns {string} Hash\r\n */\r\nutil.longToHash = function longToHash(value) {\r\n    return value\r\n        ? util.LongBits.from(value).toHash()\r\n        : util.LongBits.zeroHash;\r\n};\r\n\r\n/**\r\n * Converts an 8 characters long hash string to a long or number.\r\n * @param {string} hash Hash\r\n * @param {boolean} [unsigned=false] Whether unsigned or not\r\n * @returns {Long|number} Original value\r\n */\r\nutil.longFromHash = function longFromHash(hash, unsigned) {\r\n    var bits = util.LongBits.fromHash(hash);\r\n    if (util.Long)\r\n        return util.Long.fromBits(bits.lo, bits.hi, unsigned);\r\n    return bits.toNumber(Boolean(unsigned));\r\n};\r\n\r\n/**\r\n * Merges the properties of the source object into the destination object.\r\n * @memberof util\r\n * @param {Object.<string,*>} dst Destination object\r\n * @param {Object.<string,*>} src Source object\r\n * @param {boolean} [ifNotSet=false] Merges only if the key is not already set\r\n * @returns {Object.<string,*>} Destination object\r\n */\r\nfunction merge(dst, src, ifNotSet) { // used by converters\r\n    for (var keys = Object.keys(src), i = 0; i < keys.length; ++i)\r\n        if (dst[keys[i]] === undefined || !ifNotSet)\r\n            dst[keys[i]] = src[keys[i]];\r\n    return dst;\r\n}\r\n\r\nutil.merge = merge;\r\n\r\n/**\r\n * Converts the first character of a string to lower case.\r\n * @param {string} str String to convert\r\n * @returns {string} Converted string\r\n */\r\nutil.lcFirst = function lcFirst(str) {\r\n    return str.charAt(0).toLowerCase() + str.substring(1);\r\n};\r\n\r\n/**\r\n * Creates a custom error constructor.\r\n * @memberof util\r\n * @param {string} name Error name\r\n * @returns {Constructor<Error>} Custom error constructor\r\n */\r\nfunction newError(name) {\r\n\r\n    function CustomError(message, properties) {\r\n\r\n        if (!(this instanceof CustomError))\r\n            return new CustomError(message, properties);\r\n\r\n        // Error.call(this, message);\r\n        // ^ just returns a new error instance because the ctor can be called as a function\r\n\r\n        Object.defineProperty(this, \"message\", { get: function() { return message; } });\r\n\r\n        /* istanbul ignore next */\r\n        if (Error.captureStackTrace) // node\r\n            Error.captureStackTrace(this, CustomError);\r\n        else\r\n            Object.defineProperty(this, \"stack\", { value: new Error().stack || \"\" });\r\n\r\n        if (properties)\r\n            merge(this, properties);\r\n    }\r\n\r\n    CustomError.prototype = Object.create(Error.prototype, {\r\n        constructor: {\r\n            value: CustomError,\r\n            writable: true,\r\n            enumerable: false,\r\n            configurable: true,\r\n        },\r\n        name: {\r\n            get: function get() { return name; },\r\n            set: undefined,\r\n            enumerable: false,\r\n            // configurable: false would accurately preserve the behavior of\r\n            // the original, but I'm guessing that was not intentional.\r\n            // For an actual error subclass, this property would\r\n            // be configurable.\r\n            configurable: true,\r\n        },\r\n        toString: {\r\n            value: function value() { return this.name + \": \" + this.message; },\r\n            writable: true,\r\n            enumerable: false,\r\n            configurable: true,\r\n        },\r\n    });\r\n\r\n    return CustomError;\r\n}\r\n\r\nutil.newError = newError;\r\n\r\n/**\r\n * Constructs a new protocol error.\r\n * @classdesc Error subclass indicating a protocol specifc error.\r\n * @memberof util\r\n * @extends Error\r\n * @template T extends Message<T>\r\n * @constructor\r\n * @param {string} message Error message\r\n * @param {Object.<string,*>} [properties] Additional properties\r\n * @example\r\n * try {\r\n *     MyMessage.decode(someBuffer); // throws if required fields are missing\r\n * } catch (e) {\r\n *     if (e instanceof ProtocolError && e.instance)\r\n *         console.log(\"decoded so far: \" + JSON.stringify(e.instance));\r\n * }\r\n */\r\nutil.ProtocolError = newError(\"ProtocolError\");\r\n\r\n/**\r\n * So far decoded message instance.\r\n * @name util.ProtocolError#instance\r\n * @type {Message<T>}\r\n */\r\n\r\n/**\r\n * A OneOf getter as returned by {@link util.oneOfGetter}.\r\n * @typedef OneOfGetter\r\n * @type {function}\r\n * @returns {string|undefined} Set field name, if any\r\n */\r\n\r\n/**\r\n * Builds a getter for a oneof's present field name.\r\n * @param {string[]} fieldNames Field names\r\n * @returns {OneOfGetter} Unbound getter\r\n */\r\nutil.oneOfGetter = function getOneOf(fieldNames) {\r\n    var fieldMap = {};\r\n    for (var i = 0; i < fieldNames.length; ++i)\r\n        fieldMap[fieldNames[i]] = 1;\r\n\r\n    /**\r\n     * @returns {string|undefined} Set field name, if any\r\n     * @this Object\r\n     * @ignore\r\n     */\r\n    return function() { // eslint-disable-line consistent-return\r\n        for (var keys = Object.keys(this), i = keys.length - 1; i > -1; --i)\r\n            if (fieldMap[keys[i]] === 1 && this[keys[i]] !== undefined && this[keys[i]] !== null)\r\n                return keys[i];\r\n    };\r\n};\r\n\r\n/**\r\n * A OneOf setter as returned by {@link util.oneOfSetter}.\r\n * @typedef OneOfSetter\r\n * @type {function}\r\n * @param {string|undefined} value Field name\r\n * @returns {undefined}\r\n */\r\n\r\n/**\r\n * Builds a setter for a oneof's present field name.\r\n * @param {string[]} fieldNames Field names\r\n * @returns {OneOfSetter} Unbound setter\r\n */\r\nutil.oneOfSetter = function setOneOf(fieldNames) {\r\n\r\n    /**\r\n     * @param {string} name Field name\r\n     * @returns {undefined}\r\n     * @this Object\r\n     * @ignore\r\n     */\r\n    return function(name) {\r\n        for (var i = 0; i < fieldNames.length; ++i)\r\n            if (fieldNames[i] !== name)\r\n                delete this[fieldNames[i]];\r\n    };\r\n};\r\n\r\n/**\r\n * Default conversion options used for {@link Message#toJSON} implementations.\r\n *\r\n * These options are close to proto3's JSON mapping with the exception that internal types like Any are handled just like messages. More precisely:\r\n *\r\n * - Longs become strings\r\n * - Enums become string keys\r\n * - Bytes become base64 encoded strings\r\n * - (Sub-)Messages become plain objects\r\n * - Maps become plain objects with all string keys\r\n * - Repeated fields become arrays\r\n * - NaN and Infinity for float and double fields become strings\r\n *\r\n * @type {IConversionOptions}\r\n * @see https://developers.google.com/protocol-buffers/docs/proto3?hl=en#json\r\n */\r\nutil.toJSONOptions = {\r\n    longs: String,\r\n    enums: String,\r\n    bytes: String,\r\n    json: true\r\n};\r\n\r\n// Sets up buffer utility according to the environment (called in index-minimal)\r\nutil._configure = function() {\r\n    var Buffer = util.Buffer;\r\n    /* istanbul ignore if */\r\n    if (!Buffer) {\r\n        util._Buffer_from = util._Buffer_allocUnsafe = null;\r\n        return;\r\n    }\r\n    // because node 4.x buffers are incompatible & immutable\r\n    // see: https://github.com/dcodeIO/protobuf.js/pull/665\r\n    util._Buffer_from = Buffer.from !== Uint8Array.from && Buffer.from ||\r\n        /* istanbul ignore next */\r\n        function Buffer_from(value, encoding) {\r\n            return new Buffer(value, encoding);\r\n        };\r\n    util._Buffer_allocUnsafe = Buffer.allocUnsafe ||\r\n        /* istanbul ignore next */\r\n        function Buffer_allocUnsafe(size) {\r\n            return new Buffer(size);\r\n        };\r\n};\r\n","\"use strict\";\r\nmodule.exports = Writer;\r\n\r\nvar util      = require(\"./util/minimal\");\r\n\r\nvar BufferWriter; // cyclic\r\n\r\nvar LongBits  = uti