first commit

app_vue/node_modules/@discoveryjs/json-ext/LICENSE

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+MIT License
+
+Copyright (c) 2020 Roman Dvornov <rdvornov@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

app_vue/node_modules/@discoveryjs/json-ext/README.md

@@ -0,0 +1,256 @@
+# json-ext
+
+[![NPM version](https://img.shields.io/npm/v/@discoveryjs/json-ext.svg)](https://www.npmjs.com/package/@discoveryjs/json-ext)
+[![Build Status](https://github.com/discoveryjs/json-ext/actions/workflows/ci.yml/badge.svg)](https://github.com/discoveryjs/json-ext/actions/workflows/ci.yml)
+[![Coverage Status](https://coveralls.io/repos/github/discoveryjs/json-ext/badge.svg?branch=master)](https://coveralls.io/github/discoveryjs/json-ext?)
+[![NPM Downloads](https://img.shields.io/npm/dm/@discoveryjs/json-ext.svg)](https://www.npmjs.com/package/@discoveryjs/json-ext)
+
+A set of utilities that extend the use of JSON. Designed to be fast and memory efficient
+
+Features:
+
+- [x] `parseChunked()` – Parse JSON that comes by chunks (e.g. FS readable stream or fetch response stream)
+- [x] `stringifyStream()` – Stringify stream (Node.js)
+- [x] `stringifyInfo()` – Get estimated size and other facts of JSON.stringify() without converting a value to string
+- [ ] **TBD** Support for circular references
+- [ ] **TBD** Binary representation [branch](https://github.com/discoveryjs/json-ext/tree/binary)
+- [ ] **TBD** WHATWG [Streams](https://streams.spec.whatwg.org/) support
+
+## Install
+
+```bash
+npm install @discoveryjs/json-ext
+```
+
+## API
+
+- [parseChunked(chunkEmitter)](#parsechunkedchunkemitter)
+- [stringifyStream(value[, replacer[, space]])](#stringifystreamvalue-replacer-space)
+- [stringifyInfo(value[, replacer[, space[, options]]])](#stringifyinfovalue-replacer-space-options)
+    - [Options](#options)
+        - [async](#async)
+        - [continueOnCircular](#continueoncircular)
+- [version](#version)
+
+### parseChunked(chunkEmitter)
+
+Works the same as [`JSON.parse()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse) but takes `chunkEmitter` instead of string and returns [Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise).
+
+> NOTE: `reviver` parameter is not supported yet, but will be added in next releases.
+> NOTE: WHATWG streams aren't supported yet
+
+When to use:
+- It's required to avoid freezing the main thread during big JSON parsing, since this process can be distributed in time
+- Huge JSON needs to be parsed (e.g. >500MB on Node.js)
+- Needed to reduce memory pressure. `JSON.parse()` needs to receive the entire JSON before parsing it. With `parseChunked()` you may parse JSON as first bytes of it comes. This approach helps to avoid storing a huge string in the memory at a single time point and following GC.
+
+[Benchmark](https://github.com/discoveryjs/json-ext/tree/master/benchmarks#parse-chunked)
+
+Usage:
+
+```js
+const { parseChunked } = require('@discoveryjs/json-ext');
+
+// as a regular Promise
+parseChunked(chunkEmitter)
+    .then(data => {
+        /* data is parsed JSON */
+    });
+
+// using await (keep in mind that not every runtime has a support for top level await)
+const data = await parseChunked(chunkEmitter);
+```
+
+Parameter `chunkEmitter` can be:
+- [`ReadableStream`](https://nodejs.org/dist/latest-v14.x/docs/api/stream.html#stream_readable_streams) (Node.js only)
+```js
+const fs = require('fs');
+const { parseChunked } = require('@discoveryjs/json-ext');
+
+parseChunked(fs.createReadStream('path/to/file.json'))
+```
+- Generator, async generator or function that returns iterable (chunks). Chunk might be a `string`, `Uint8Array` or `Buffer` (Node.js only):
+```js
+const { parseChunked } = require('@discoveryjs/json-ext');
+const encoder = new TextEncoder();
+
+// generator
+parseChunked(function*() {
+    yield '{ "hello":';
+    yield Buffer.from(' "wor');    // Node.js only
+    yield encoder.encode('ld" }'); // returns Uint8Array(5) [ 108, 100, 34, 32, 125 ]
+});
+
+// async generator
+parseChunked(async function*() {
+    for await (const chunk of someAsyncSource) {
+        yield chunk;
+    }
+});
+
+// function that returns iterable
+parseChunked(() => ['{ "hello":', ' "world"}'])
+```
+
+Using with [fetch()](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API):
+
+```js
+async function loadData(url) {
+    const response = await fetch(url);
+    const reader = response.body.getReader();
+
+    return parseChunked(async function*() {
+        while (true) {
+            const { done, value } = await reader.read();
+
+            if (done) {
+                break;
+            }
+
+            yield value;
+        }
+    });
+}
+
+loadData('https://example.com/data.json')
+    .then(data => {
+        /* data is parsed JSON */
+    })
+```
+
+### stringifyStream(value[, replacer[, space]])
+
+Works the same as [`JSON.stringify()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify), but returns an instance of [`ReadableStream`](https://nodejs.org/dist/latest-v14.x/docs/api/stream.html#stream_readable_streams) instead of string.
+
+> NOTE: WHATWG Streams aren't supported yet, so function available for Node.js only for now
+
+Departs from JSON.stringify():
+- Outputs `null` when `JSON.stringify()` returns `undefined` (since streams may not emit `undefined`)
+- A promise is resolving and the resulting value is stringifying as a regular one
+- A stream in non-object mode is piping to output as is
+- A stream in object mode is piping to output as an array of objects
+
+When to use:
+- Huge JSON needs to be generated (e.g. >500MB on Node.js)
+- Needed to reduce memory pressure. `JSON.stringify()` needs to generate the entire JSON before send or write it to somewhere. With `stringifyStream()` you may send a result to somewhere as first bytes of the result appears. This approach helps to avoid storing a huge string in the memory at a single time point.
+- The object being serialized contains Promises or Streams (see Usage for examples)
+
+[Benchmark](https://github.com/discoveryjs/json-ext/tree/master/benchmarks#stream-stringifying)
+
+Usage:
+
+```js
+const { stringifyStream } = require('@discoveryjs/json-ext');
+
+// handle events
+stringifyStream(data)
+    .on('data', chunk => console.log(chunk))
+    .on('error', error => consold.error(error))
+    .on('finish', () => console.log('DONE!'));
+
+// pipe into a stream
+stringifyStream(data)
+    .pipe(writableStream);
+```
+
+Using Promise or ReadableStream in serializing object:
+
+```js
+const fs = require('fs');
+const { stringifyStream } = require('@discoveryjs/json-ext');
+
+// output will be
+// {"name":"example","willSerializeResolvedValue":42,"fromFile":[1, 2, 3],"at":{"any":{"level":"promise!"}}}
+stringifyStream({
+    name: 'example',
+    willSerializeResolvedValue: Promise.resolve(42),
+    fromFile: fs.createReadStream('path/to/file.json'), // support file content is "[1, 2, 3]", it'll be inserted as it
+    at: {
+        any: {
+            level: new Promise(resolve => setTimeout(() => resolve('promise!'), 100))
+        }
+    }
+})
+
+// in case several async requests are used in object, it's prefered
+// to put fastest requests first, because in this case
+stringifyStream({
+    foo: fetch('http://example.com/request_takes_2s').then(req => req.json()),
+    bar: fetch('http://example.com/request_takes_5s').then(req => req.json())
+});
+```
+
+Using with [`WritableStream`](https://nodejs.org/dist/latest-v14.x/docs/api/stream.html#stream_writable_streams) (Node.js only):
+
+```js
+const fs = require('fs');
+const { stringifyStream } = require('@discoveryjs/json-ext');
+
+// pipe into a console
+stringifyStream(data)
+    .pipe(process.stdout);
+
+// pipe into a file
+stringifyStream(data)
+    .pipe(fs.createWriteStream('path/to/file.json'));
+
+// wrapping into a Promise
+new Promise((resolve, reject) => {
+    stringifyStream(data)
+        .on('error', reject)
+        .pipe(stream)
+        .on('error', reject)
+        .on('finish', resolve);
+});
+```
+
+### stringifyInfo(value[, replacer[, space[, options]]])
+
+`value`, `replacer` and `space` arguments are the same as for `JSON.stringify()`.
+
+Result is an object:
+
+```js
+{
+    minLength: Number,  // minimal bytes when values is stringified
+    circular: [...],    // list of circular references
+    duplicate: [...],   // list of objects that occur more than once
+    async: [...]        // list of async values, i.e. promises and streams
+}
+```
+
+Example:
+
+```js
+const { stringifyInfo } = require('@discoveryjs/json-ext');
+
+console.log(
+    stringifyInfo({ test: true }).minLength
+);
+// > 13
+// that equals '{"test":true}'.length
+```
+
+#### Options
+
+##### async
+
+Type: `Boolean`  
+Default: `false`
+
+Collect async values (promises and streams) or not.
+
+##### continueOnCircular
+
+Type: `Boolean`  
+Default: `false`
+
+Stop collecting info for a value or not whenever circular reference is found. Setting option to `true` allows to find all circular references.
+
+### version
+
+The version of library, e.g. `"0.3.1"`.
+
+## License
+
+MIT

app_vue/node_modules/@discoveryjs/json-ext/dist/json-ext.js

@@ -0,0 +1,791 @@
+(function (global, factory) {
+    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+    typeof define === 'function' && define.amd ? define(factory) :
+    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.jsonExt = factory());
+})(this, (function () { 'use strict';
+
+    var version = "0.5.7";
+
+    const PrimitiveType = 1;
+    const ObjectType = 2;
+    const ArrayType = 3;
+    const PromiseType = 4;
+    const ReadableStringType = 5;
+    const ReadableObjectType = 6;
+    // https://tc39.es/ecma262/#table-json-single-character-escapes
+    const escapableCharCodeSubstitution$1 = { // JSON Single Character Escape Sequences
+        0x08: '\\b',
+        0x09: '\\t',
+        0x0a: '\\n',
+        0x0c: '\\f',
+        0x0d: '\\r',
+        0x22: '\\\"',
+        0x5c: '\\\\'
+    };
+
+    function isLeadingSurrogate$1(code) {
+        return code >= 0xD800 && code <= 0xDBFF;
+    }
+
+    function isTrailingSurrogate$1(code) {
+        return code >= 0xDC00 && code <= 0xDFFF;
+    }
+
+    function isReadableStream$1(value) {
+        return (
+            typeof value.pipe === 'function' &&
+            typeof value._read === 'function' &&
+            typeof value._readableState === 'object' && value._readableState !== null
+        );
+    }
+
+    function replaceValue$1(holder, key, value, replacer) {
+        if (value && typeof value.toJSON === 'function') {
+            value = value.toJSON();
+        }
+
+        if (replacer !== null) {
+            value = replacer.call(holder, String(key), value);
+        }
+
+        switch (typeof value) {
+            case 'function':
+            case 'symbol':
+                value = undefined;
+                break;
+
+            case 'object':
+                if (value !== null) {
+                    const cls = value.constructor;
+                    if (cls === String || cls === Number || cls === Boolean) {
+                        value = value.valueOf();
+                    }
+                }
+                break;
+        }
+
+        return value;
+    }
+
+    function getTypeNative$1(value) {
+        if (value === null || typeof value !== 'object') {
+            return PrimitiveType;
+        }
+
+        if (Array.isArray(value)) {
+            return ArrayType;
+        }
+
+        return ObjectType;
+    }
+
+    function getTypeAsync$1(value) {
+        if (value === null || typeof value !== 'object') {
+            return PrimitiveType;
+        }
+
+        if (typeof value.then === 'function') {
+            return PromiseType;
+        }
+
+        if (isReadableStream$1(value)) {
+            return value._readableState.objectMode ? ReadableObjectType : ReadableStringType;
+        }
+
+        if (Array.isArray(value)) {
+            return ArrayType;
+        }
+
+        return ObjectType;
+    }
+
+    function normalizeReplacer$1(replacer) {
+        if (typeof replacer === 'function') {
+            return replacer;
+        }
+
+        if (Array.isArray(replacer)) {
+            const allowlist = new Set(replacer
+                .map(item => {
+                    const cls = item && item.constructor;
+                    return cls === String || cls === Number ? String(item) : null;
+                })
+                .filter(item => typeof item === 'string')
+            );
+
+            return [...allowlist];
+        }
+
+        return null;
+    }
+
+    function normalizeSpace$1(space) {
+        if (typeof space === 'number') {
+            if (!Number.isFinite(space) || space < 1) {
+                return false;
+            }
+
+            return ' '.repeat(Math.min(space, 10));
+        }
+
+        if (typeof space === 'string') {
+            return space.slice(0, 10) || false;
+        }
+
+        return false;
+    }
+
+    var utils = {
+        escapableCharCodeSubstitution: escapableCharCodeSubstitution$1,
+        isLeadingSurrogate: isLeadingSurrogate$1,
+        isTrailingSurrogate: isTrailingSurrogate$1,
+        type: {
+            PRIMITIVE: PrimitiveType,
+            PROMISE: PromiseType,
+            ARRAY: ArrayType,
+            OBJECT: ObjectType,
+            STRING_STREAM: ReadableStringType,
+            OBJECT_STREAM: ReadableObjectType
+        },
+
+        isReadableStream: isReadableStream$1,
+        replaceValue: replaceValue$1,
+        getTypeNative: getTypeNative$1,
+        getTypeAsync: getTypeAsync$1,
+        normalizeReplacer: normalizeReplacer$1,
+        normalizeSpace: normalizeSpace$1
+    };
+
+    const {
+        normalizeReplacer,
+        normalizeSpace,
+        replaceValue,
+        getTypeNative,
+        getTypeAsync,
+        isLeadingSurrogate,
+        isTrailingSurrogate,
+        escapableCharCodeSubstitution,
+        type: {
+            PRIMITIVE,
+            OBJECT,
+            ARRAY,
+            PROMISE,
+            STRING_STREAM,
+            OBJECT_STREAM
+        }
+    } = utils;
+    const charLength2048 = Array.from({ length: 2048 }).map((_, code) => {
+        if (escapableCharCodeSubstitution.hasOwnProperty(code)) {
+            return 2; // \X
+        }
+
+        if (code < 0x20) {
+            return 6; // \uXXXX
+        }
+
+        return code < 128 ? 1 : 2; // UTF8 bytes
+    });
+
+    function stringLength(str) {
+        let len = 0;
+        let prevLeadingSurrogate = false;
+
+        for (let i = 0; i < str.length; i++) {
+            const code = str.charCodeAt(i);
+
+            if (code < 2048) {
+                len += charLength2048[code];
+            } else if (isLeadingSurrogate(code)) {
+                len += 6; // \uXXXX since no pair with trailing surrogate yet
+                prevLeadingSurrogate = true;
+                continue;
+            } else if (isTrailingSurrogate(code)) {
+                len = prevLeadingSurrogate
+                    ? len - 2  // surrogate pair (4 bytes), since we calculate prev leading surrogate as 6 bytes, substruct 2 bytes
+                    : len + 6; // \uXXXX
+            } else {
+                len += 3; // code >= 2048 is 3 bytes length for UTF8
+            }
+
+            prevLeadingSurrogate = false;
+        }
+
+        return len + 2; // +2 for quotes
+    }
+
+    function primitiveLength(value) {
+        switch (typeof value) {
+            case 'string':
+                return stringLength(value);
+
+            case 'number':
+                return Number.isFinite(value) ? String(value).length : 4 /* null */;
+
+            case 'boolean':
+                return value ? 4 /* true */ : 5 /* false */;
+
+            case 'undefined':
+            case 'object':
+                return 4; /* null */
+
+            default:
+                return 0;
+        }
+    }
+
+    function spaceLength(space) {
+        space = normalizeSpace(space);
+        return typeof space === 'string' ? space.length : 0;
+    }
+
+    var stringifyInfo = function jsonStringifyInfo(value, replacer, space, options) {
+        function walk(holder, key, value) {
+            if (stop) {
+                return;
+            }
+
+            value = replaceValue(holder, key, value, replacer);
+
+            let type = getType(value);
+
+            // check for circular structure
+            if (type !== PRIMITIVE && stack.has(value)) {
+                circular.add(value);
+                length += 4; // treat as null
+
+                if (!options.continueOnCircular) {
+                    stop = true;
+                }
+
+                return;
+            }
+
+            switch (type) {
+                case PRIMITIVE:
+                    if (value !== undefined || Array.isArray(holder)) {
+                        length += primitiveLength(value);
+                    } else if (holder === root) {
+                        length += 9; // FIXME: that's the length of undefined, should we normalize behaviour to convert it to null?
+                    }
+                    break;
+
+                case OBJECT: {
+                    if (visited.has(value)) {
+                        duplicate.add(value);
+                        length += visited.get(value);
+                        break;
+                    }
+
+                    const valueLength = length;
+                    let entries = 0;
+
+                    length += 2; // {}
+
+                    stack.add(value);
+
+                    for (const key in value) {
+                        if (hasOwnProperty.call(value, key) && (allowlist === null || allowlist.has(key))) {
+                            const prevLength = length;
+                            walk(value, key, value[key]);
+
+                            if (prevLength !== length) {
+                                // value is printed
+                                length += stringLength(key) + 1; // "key":
+                                entries++;
+                            }
+                        }
+                    }
+
+                    if (entries > 1) {
+                        length += entries - 1; // commas
+                    }
+
+                    stack.delete(value);
+
+                    if (space > 0 && entries > 0) {
+                        length += (1 + (stack.size + 1) * space + 1) * entries; // for each key-value: \n{space}
+                        length += 1 + stack.size * space; // for }
+                    }
+
+                    visited.set(value, length - valueLength);
+
+                    break;
+                }
+
+                case ARRAY: {
+                    if (visited.has(value)) {
+                        duplicate.add(value);
+                        length += visited.get(value);
+                        break;
+                    }
+
+                    const valueLength = length;
+
+                    length += 2; // []
+
+                    stack.add(value);
+
+                    for (let i = 0; i < value.length; i++) {
+                        walk(value, i, value[i]);
+                    }
+
+                    if (value.length > 1) {
+                        length += value.length - 1; // commas
+                    }
+
+                    stack.delete(value);
+
+                    if (space > 0 && value.length > 0) {
+                        length += (1 + (stack.size + 1) * space) * value.length; // for each element: \n{space}
+                        length += 1 + stack.size * space; // for ]
+                    }
+
+                    visited.set(value, length - valueLength);
+
+                    break;
+                }
+
+                case PROMISE:
+                case STRING_STREAM:
+                    async.add(value);
+                    break;
+
+                case OBJECT_STREAM:
+                    length += 2; // []
+                    async.add(value);
+                    break;
+            }
+        }
+
+        let allowlist = null;
+        replacer = normalizeReplacer(replacer);
+
+        if (Array.isArray(replacer)) {
+            allowlist = new Set(replacer);
+            replacer = null;
+        }
+
+        space = spaceLength(space);
+        options = options || {};
+
+        const visited = new Map();
+        const stack = new Set();
+        const duplicate = new Set();
+        const circular = new Set();
+        const async = new Set();
+        const getType = options.async ? getTypeAsync : getTypeNative;
+        const root = { '': value };
+        let stop = false;
+        let length = 0;
+
+        walk(root, '', value);
+
+        return {
+            minLength: isNaN(length) ? Infinity : length,
+            circular: [...circular],
+            duplicate: [...duplicate],
+            async: [...async]
+        };
+    };
+
+    var stringifyStreamBrowser = () => {
+        throw new Error('Method is not supported');
+    };
+
+    var textDecoderBrowser = TextDecoder;
+
+    const { isReadableStream } = utils;
+
+
+    const STACK_OBJECT = 1;
+    const STACK_ARRAY = 2;
+    const decoder = new textDecoderBrowser();
+
+    function isObject(value) {
+        return value !== null && typeof value === 'object';
+    }
+
+    function adjustPosition(error, parser) {
+        if (error.name === 'SyntaxError' && parser.jsonParseOffset) {
+            error.message = error.message.replace(/at position (\d+)/, (_, pos) =>
+                'at position ' + (Number(pos) + parser.jsonParseOffset)
+            );
+        }
+
+        return error;
+    }
+
+    function append(array, elements) {
+        // Note: Avoid to use array.push(...elements) since it may lead to
+        // "RangeError: Maximum call stack size exceeded" for a long arrays
+        const initialLength = array.length;
+        array.length += elements.length;
+
+        for (let i = 0; i < elements.length; i++) {
+            array[initialLength + i] = elements[i];
+        }
+    }
+
+    var parseChunked = function(chunkEmitter) {
+        let parser = new ChunkParser();
+
+        if (isObject(chunkEmitter) && isReadableStream(chunkEmitter)) {
+            return new Promise((resolve, reject) => {
+                chunkEmitter
+                    .on('data', chunk => {
+                        try {
+                            parser.push(chunk);
+                        } catch (e) {
+                            reject(adjustPosition(e, parser));
+                            parser = null;
+                        }
+                    })
+                    .on('error', (e) => {
+                        parser = null;
+                        reject(e);
+                    })
+                    .on('end', () => {
+                        try {
+                            resolve(parser.finish());
+                        } catch (e) {
+                            reject(adjustPosition(e, parser));
+                        } finally {
+                            parser = null;
+                        }
+                    });
+            });
+        }
+
+        if (typeof chunkEmitter === 'function') {
+            const iterator = chunkEmitter();
+
+            if (isObject(iterator) && (Symbol.iterator in iterator || Symbol.asyncIterator in iterator)) {
+                return new Promise(async (resolve, reject) => {
+                    try {
+                        for await (const chunk of iterator) {
+                            parser.push(chunk);
+                        }
+
+                        resolve(parser.finish());
+                    } catch (e) {
+                        reject(adjustPosition(e, parser));
+                    } finally {
+                        parser = null;
+                    }
+                });
+            }
+        }
+
+        throw new Error(
+            'Chunk emitter should be readable stream, generator, ' +
+            'async generator or function returning an iterable object'
+        );
+    };
+
+    class ChunkParser {
+        constructor() {
+            this.value = undefined;
+            this.valueStack = null;
+
+            this.stack = new Array(100);
+            this.lastFlushDepth = 0;
+            this.flushDepth = 0;
+            this.stateString = false;
+            this.stateStringEscape = false;
+            this.pendingByteSeq = null;
+            this.pendingChunk = null;
+            this.chunkOffset = 0;
+            this.jsonParseOffset = 0;
+        }
+
+        parseAndAppend(fragment, wrap) {
+            // Append new entries or elements
+            if (this.stack[this.lastFlushDepth - 1] === STACK_OBJECT) {
+                if (wrap) {
+                    this.jsonParseOffset--;
+                    fragment = '{' + fragment + '}';
+                }
+
+                Object.assign(this.valueStack.value, JSON.parse(fragment));
+            } else {
+                if (wrap) {
+                    this.jsonParseOffset--;
+                    fragment = '[' + fragment + ']';
+                }
+
+                append(this.valueStack.value, JSON.parse(fragment));
+            }
+        }
+
+        prepareAddition(fragment) {
+            const { value } = this.valueStack;
+            const expectComma = Array.isArray(value)
+                ? value.length !== 0
+                : Object.keys(value).length !== 0;
+
+            if (expectComma) {
+                // Skip a comma at the beginning of fragment, otherwise it would
+                // fail to parse
+                if (fragment[0] === ',') {
+                    this.jsonParseOffset++;
+                    return fragment.slice(1);
+                }
+
+                // When value (an object or array) is not empty and a fragment
+                // doesn't start with a comma, a single valid fragment starting
+                // is a closing bracket. If it's not, a prefix is adding to fail
+                // parsing. Otherwise, the sequence of chunks can be successfully
+                // parsed, although it should not, e.g. ["[{}", "{}]"]
+                if (fragment[0] !== '}' && fragment[0] !== ']') {
+                    this.jsonParseOffset -= 3;
+                    return '[[]' + fragment;
+                }
+            }
+
+            return fragment;
+        }
+
+        flush(chunk, start, end) {
+            let fragment = chunk.slice(start, end);
+
+            // Save position correction an error in JSON.parse() if any
+            this.jsonParseOffset = this.chunkOffset + start;
+
+            // Prepend pending chunk if any
+            if (this.pendingChunk !== null) {
+                fragment = this.pendingChunk + fragment;
+                this.jsonParseOffset -= this.pendingChunk.length;
+                this.pendingChunk = null;
+            }
+
+            if (this.flushDepth === this.lastFlushDepth) {
+                // Depth didn't changed, so it's a root value or entry/element set
+                if (this.flushDepth > 0) {
+                    this.parseAndAppend(this.prepareAddition(fragment), true);
+                } else {
+                    // That's an entire value on a top level
+                    this.value = JSON.parse(fragment);
+                    this.valueStack = {
+                        value: this.value,
+                        prev: null
+                    };
+                }
+            } else if (this.flushDepth > this.lastFlushDepth) {
+                // Add missed closing brackets/parentheses
+                for (let i = this.flushDepth - 1; i >= this.lastFlushDepth; i--) {
+                    fragment += this.stack[i] === STACK_OBJECT ? '}' : ']';
+                }
+
+                if (this.lastFlushDepth === 0) {
+                    // That's a root value
+                    this.value = JSON.parse(fragment);
+                    this.valueStack = {
+                        value: this.value,
+                        prev: null
+                    };
+                } else {
+                    this.parseAndAppend(this.prepareAddition(fragment), true);
+                }
+
+                // Move down to the depths to the last object/array, which is current now
+                for (let i = this.lastFlushDepth || 1; i < this.flushDepth; i++) {
+                    let value = this.valueStack.value;
+
+                    if (this.stack[i - 1] === STACK_OBJECT) {
+                        // find last entry
+                        let key;
+                        // eslint-disable-next-line curly
+                        for (key in value);
+                        value = value[key];
+                    } else {
+                        // last element
+                        value = value[value.length - 1];
+                    }
+
+                    this.valueStack = {
+                        value,
+                        prev: this.valueStack
+                    };
+                }
+            } else /* this.flushDepth < this.lastFlushDepth */ {
+                fragment = this.prepareAddition(fragment);
+
+                // Add missed opening brackets/parentheses
+                for (let i = this.lastFlushDepth - 1; i >= this.flushDepth; i--) {
+                    this.jsonParseOffset--;
+                    fragment = (this.stack[i] === STACK_OBJECT ? '{' : '[') + fragment;
+                }
+
+                this.parseAndAppend(fragment, false);
+
+                for (let i = this.lastFlushDepth - 1; i >= this.flushDepth; i--) {
+                    this.valueStack = this.valueStack.prev;
+                }
+            }
+
+            this.lastFlushDepth = this.flushDepth;
+        }
+
+        push(chunk) {
+            if (typeof chunk !== 'string') {
+                // Suppose chunk is Buffer or Uint8Array
+
+                // Prepend uncompleted byte sequence if any
+                if (this.pendingByteSeq !== null) {
+                    const origRawChunk = chunk;
+                    chunk = new Uint8Array(this.pendingByteSeq.length + origRawChunk.length);
+                    chunk.set(this.pendingByteSeq);
+                    chunk.set(origRawChunk, this.pendingByteSeq.length);
+                    this.pendingByteSeq = null;
+                }
+
+                // In case Buffer/Uint8Array, an input is encoded in UTF8
+                // Seek for parts of uncompleted UTF8 symbol on the ending
+                // This makes sense only if we expect more chunks and last char is not multi-bytes
+                if (chunk[chunk.length - 1] > 127) {
+                    for (let seqLength = 0; seqLength < chunk.length; seqLength++) {
+                        const byte = chunk[chunk.length - 1 - seqLength];
+
+                        // 10xxxxxx - 2nd, 3rd or 4th byte
+                        // 110xxxxx – first byte of 2-byte sequence
+                        // 1110xxxx - first byte of 3-byte sequence
+                        // 11110xxx - first byte of 4-byte sequence
+                        if (byte >> 6 === 3) {
+                            seqLength++;
+
+                            // If the sequence is really incomplete, then preserve it
+                            // for the future chunk and cut off it from the current chunk
+                            if ((seqLength !== 4 && byte >> 3 === 0b11110) ||
+                                (seqLength !== 3 && byte >> 4 === 0b1110) ||
+                                (seqLength !== 2 && byte >> 5 === 0b110)) {
+                                this.pendingByteSeq = chunk.slice(chunk.length - seqLength);
+                                chunk = chunk.slice(0, -seqLength);
+                            }
+
+                            break;
+                        }
+                    }
+                }
+
+                // Convert chunk to a string, since single decode per chunk
+                // is much effective than decode multiple small substrings
+                chunk = decoder.decode(chunk);
+            }
+
+            const chunkLength = chunk.length;
+            let lastFlushPoint = 0;
+            let flushPoint = 0;
+
+            // Main scan loop
+            scan: for (let i = 0; i < chunkLength; i++) {
+                if (this.stateString) {
+                    for (; i < chunkLength; i++) {
+                        if (this.stateStringEscape) {
+                            this.stateStringEscape = false;
+                        } else {
+                            switch (chunk.charCodeAt(i)) {
+                                case 0x22: /* " */
+                                    this.stateString = false;
+                                    continue scan;
+
+                                case 0x5C: /* \ */
+                                    this.stateStringEscape = true;
+                            }
+                        }
+                    }
+
+                    break;
+                }
+
+                switch (chunk.charCodeAt(i)) {
+                    case 0x22: /* " */
+                        this.stateString = true;
+                        this.stateStringEscape = false;
+                        break;
+
+                    case 0x2C: /* , */
+                        flushPoint = i;
+                        break;
+
+                    case 0x7B: /* { */
+                        // Open an object
+                        flushPoint = i + 1;
+                        this.stack[this.flushDepth++] = STACK_OBJECT;
+                        break;
+
+                    case 0x5B: /* [ */
+                        // Open an array
+                        flushPoint = i + 1;
+                        this.stack[this.flushDepth++] = STACK_ARRAY;
+                        break;
+
+                    case 0x5D: /* ] */
+                    case 0x7D: /* } */
+                        // Close an object or array
+                        flushPoint = i + 1;
+                        this.flushDepth--;
+
+                        if (this.flushDepth < this.lastFlushDepth) {
+                            this.flush(chunk, lastFlushPoint, flushPoint);
+                            lastFlushPoint = flushPoint;
+                        }
+
+                        break;
+
+                    case 0x09: /* \t */
+                    case 0x0A: /* \n */
+                    case 0x0D: /* \r */
+                    case 0x20: /* space */
+                        // Move points forward when they points on current position and it's a whitespace
+                        if (lastFlushPoint === i) {
+                            lastFlushPoint++;
+                        }
+
+                        if (flushPoint === i) {
+                            flushPoint++;
+                        }
+
+                        break;
+                }
+            }
+
+            if (flushPoint > lastFlushPoint) {
+                this.flush(chunk, lastFlushPoint, flushPoint);
+            }
+
+            // Produce pendingChunk if something left
+            if (flushPoint < chunkLength) {
+                if (this.pendingChunk !== null) {
+                    // When there is already a pending chunk then no flush happened,
+                    // appending entire chunk to pending one
+                    this.pendingChunk += chunk;
+                } else {
+                    // Create a pending chunk, it will start with non-whitespace since
+                    // flushPoint was moved forward away from whitespaces on scan
+                    this.pendingChunk = chunk.slice(flushPoint, chunkLength);
+                }
+            }
+
+            this.chunkOffset += chunkLength;
+        }
+
+        finish() {
+            if (this.pendingChunk !== null) {
+                this.flush('', 0, 0);
+                this.pendingChunk = null;
+            }
+
+            return this.value;
+        }
+    }
+
+    var src = {
+        version: version,
+        stringifyInfo: stringifyInfo,
+        stringifyStream: stringifyStreamBrowser,
+        parseChunked: parseChunked
+    };
+
+    return src;
+
+}));

app_vue/node_modules/@discoveryjs/json-ext/dist/version.js

@@ -0,0 +1 @@
+module.exports = "0.5.7";

app_vue/node_modules/@discoveryjs/json-ext/index.d.ts

@@ -0,0 +1,31 @@
+declare module '@discoveryjs/json-ext' {
+    import { Readable } from 'stream';
+
+    type TReplacer =
+        | ((this: any, key: string, value: any) => any)
+        | string[]
+        | number[]
+        | null;
+    type TSpace = string | number | null;
+    type TChunk = string | Buffer | Uint8Array;
+
+    export function parseChunked(input: Readable): Promise<any>;
+    export function parseChunked(input: () => (Iterable<TChunk> | AsyncIterable<TChunk>)): Promise<any>;
+
+    export function stringifyStream(value: any, replacer?: TReplacer, space?: TSpace): Readable;
+
+    export function stringifyInfo(
+        value: any,
+        replacer?: TReplacer,
+        space?: TSpace,
+        options?: {
+            async?: boolean;
+            continueOnCircular?: boolean;
+        }
+    ): {
+        minLength: number;
+        circular: any[];
+        duplicate: any[];
+        async: any[];
+    };
+}

app_vue/node_modules/@discoveryjs/json-ext/package.json

@@ -0,0 +1,56 @@
+{
+    "name": "@discoveryjs/json-ext",
+    "version": "0.5.7",
+    "description": "A set of utilities that extend the use of JSON",
+    "keywords": [
+        "json",
+        "utils",
+        "stream",
+        "async",
+        "promise",
+        "stringify",
+        "info"
+    ],
+    "author": "Roman Dvornov <rdvornov@gmail.com> (https://github.com/lahmatiy)",
+    "license": "MIT",
+    "repository": "discoveryjs/json-ext",
+    "main": "./src/index",
+    "browser": {
+        "./src/stringify-stream.js": "./src/stringify-stream-browser.js",
+        "./src/text-decoder.js": "./src/text-decoder-browser.js",
+        "./src/version.js": "./dist/version.js"
+    },
+    "types": "./index.d.ts",
+    "scripts": {
+        "test": "mocha --reporter progress",
+        "lint": "eslint src test",
+        "lint-and-test": "npm run lint && npm test",
+        "build": "rollup --config",
+        "test:all": "npm run test:src && npm run test:dist",
+        "test:src": "npm test",
+        "test:dist": "cross-env MODE=dist npm test && cross-env MODE=dist-min npm test",
+        "build-and-test": "npm run build && npm run test:dist",
+        "coverage": "c8 --reporter=lcovonly npm test",
+        "prepublishOnly": "npm run lint && npm test && npm run build-and-test"
+    },
+    "devDependencies": {
+        "@rollup/plugin-commonjs": "^15.1.0",
+        "@rollup/plugin-json": "^4.1.0",
+        "@rollup/plugin-node-resolve": "^9.0.0",
+        "c8": "^7.10.0",
+        "chalk": "^4.1.0",
+        "cross-env": "^7.0.3",
+        "eslint": "^8.10.0",
+        "mocha": "^8.4.0",
+        "rollup": "^2.28.2",
+        "rollup-plugin-terser": "^7.0.2"
+    },
+    "engines": {
+        "node": ">=10.0.0"
+    },
+    "files": [
+        "dist",
+        "src",
+        "index.d.ts"
+    ]
+}

app_vue/node_modules/@discoveryjs/json-ext/src/index.js

@@ -0,0 +1,6 @@
+module.exports = {
+    version: require('./version'),
+    stringifyInfo: require('./stringify-info'),
+    stringifyStream: require('./stringify-stream'),
+    parseChunked: require('./parse-chunked')
+};

app_vue/node_modules/@discoveryjs/json-ext/src/parse-chunked.js

@@ -0,0 +1,384 @@
+const { isReadableStream } = require('./utils');
+const TextDecoder = require('./text-decoder');
+
+const STACK_OBJECT = 1;
+const STACK_ARRAY = 2;
+const decoder = new TextDecoder();
+
+function isObject(value) {
+    return value !== null && typeof value === 'object';
+}
+
+function adjustPosition(error, parser) {
+    if (error.name === 'SyntaxError' && parser.jsonParseOffset) {
+        error.message = error.message.replace(/at position (\d+)/, (_, pos) =>
+            'at position ' + (Number(pos) + parser.jsonParseOffset)
+        );
+    }
+
+    return error;
+}
+
+function append(array, elements) {
+    // Note: Avoid to use array.push(...elements) since it may lead to
+    // "RangeError: Maximum call stack size exceeded" for a long arrays
+    const initialLength = array.length;
+    array.length += elements.length;
+
+    for (let i = 0; i < elements.length; i++) {
+        array[initialLength + i] = elements[i];
+    }
+}
+
+module.exports = function(chunkEmitter) {
+    let parser = new ChunkParser();
+
+    if (isObject(chunkEmitter) && isReadableStream(chunkEmitter)) {
+        return new Promise((resolve, reject) => {
+            chunkEmitter
+                .on('data', chunk => {
+                    try {
+                        parser.push(chunk);
+                    } catch (e) {
+                        reject(adjustPosition(e, parser));
+                        parser = null;
+                    }
+                })
+                .on('error', (e) => {
+                    parser = null;
+                    reject(e);
+                })
+                .on('end', () => {
+                    try {
+                        resolve(parser.finish());
+                    } catch (e) {
+                        reject(adjustPosition(e, parser));
+                    } finally {
+                        parser = null;
+                    }
+                });
+        });
+    }
+
+    if (typeof chunkEmitter === 'function') {
+        const iterator = chunkEmitter();
+
+        if (isObject(iterator) && (Symbol.iterator in iterator || Symbol.asyncIterator in iterator)) {
+            return new Promise(async (resolve, reject) => {
+                try {
+                    for await (const chunk of iterator) {
+                        parser.push(chunk);
+                    }
+
+                    resolve(parser.finish());
+                } catch (e) {
+                    reject(adjustPosition(e, parser));
+                } finally {
+                    parser = null;
+                }
+            });
+        }
+    }
+
+    throw new Error(
+        'Chunk emitter should be readable stream, generator, ' +
+        'async generator or function returning an iterable object'
+    );
+};
+
+class ChunkParser {
+    constructor() {
+        this.value = undefined;
+        this.valueStack = null;
+
+        this.stack = new Array(100);
+        this.lastFlushDepth = 0;
+        this.flushDepth = 0;
+        this.stateString = false;
+        this.stateStringEscape = false;
+        this.pendingByteSeq = null;
+        this.pendingChunk = null;
+        this.chunkOffset = 0;
+        this.jsonParseOffset = 0;
+    }
+
+    parseAndAppend(fragment, wrap) {
+        // Append new entries or elements
+        if (this.stack[this.lastFlushDepth - 1] === STACK_OBJECT) {
+            if (wrap) {
+                this.jsonParseOffset--;
+                fragment = '{' + fragment + '}';
+            }
+
+            Object.assign(this.valueStack.value, JSON.parse(fragment));
+        } else {
+            if (wrap) {
+                this.jsonParseOffset--;
+                fragment = '[' + fragment + ']';
+            }
+
+            append(this.valueStack.value, JSON.parse(fragment));
+        }
+    }
+
+    prepareAddition(fragment) {
+        const { value } = this.valueStack;
+        const expectComma = Array.isArray(value)
+            ? value.length !== 0
+            : Object.keys(value).length !== 0;
+
+        if (expectComma) {
+            // Skip a comma at the beginning of fragment, otherwise it would
+            // fail to parse
+            if (fragment[0] === ',') {
+                this.jsonParseOffset++;
+                return fragment.slice(1);
+            }
+
+            // When value (an object or array) is not empty and a fragment
+            // doesn't start with a comma, a single valid fragment starting
+            // is a closing bracket. If it's not, a prefix is adding to fail
+            // parsing. Otherwise, the sequence of chunks can be successfully
+            // parsed, although it should not, e.g. ["[{}", "{}]"]
+            if (fragment[0] !== '}' && fragment[0] !== ']') {
+                this.jsonParseOffset -= 3;
+                return '[[]' + fragment;
+            }
+        }
+
+        return fragment;
+    }
+
+    flush(chunk, start, end) {
+        let fragment = chunk.slice(start, end);
+
+        // Save position correction an error in JSON.parse() if any
+        this.jsonParseOffset = this.chunkOffset + start;
+
+        // Prepend pending chunk if any
+        if (this.pendingChunk !== null) {
+            fragment = this.pendingChunk + fragment;
+            this.jsonParseOffset -= this.pendingChunk.length;
+            this.pendingChunk = null;
+        }
+
+        if (this.flushDepth === this.lastFlushDepth) {
+            // Depth didn't changed, so it's a root value or entry/element set
+            if (this.flushDepth > 0) {
+                this.parseAndAppend(this.prepareAddition(fragment), true);
+            } else {
+                // That's an entire value on a top level
+                this.value = JSON.parse(fragment);
+                this.valueStack = {
+                    value: this.value,
+                    prev: null
+                };
+            }
+        } else if (this.flushDepth > this.lastFlushDepth) {
+            // Add missed closing brackets/parentheses
+            for (let i = this.flushDepth - 1; i >= this.lastFlushDepth; i--) {
+                fragment += this.stack[i] === STACK_OBJECT ? '}' : ']';
+            }
+
+            if (this.lastFlushDepth === 0) {
+                // That's a root value
+                this.value = JSON.parse(fragment);
+                this.valueStack = {
+                    value: this.value,
+                    prev: null
+                };
+            } else {
+                this.parseAndAppend(this.prepareAddition(fragment), true);
+            }
+
+            // Move down to the depths to the last object/array, which is current now
+            for (let i = this.lastFlushDepth || 1; i < this.flushDepth; i++) {
+                let value = this.valueStack.value;
+
+                if (this.stack[i - 1] === STACK_OBJECT) {
+                    // find last entry
+                    let key;
+                    // eslint-disable-next-line curly
+                    for (key in value);
+                    value = value[key];
+                } else {
+                    // last element
+                    value = value[value.length - 1];
+                }
+
+                this.valueStack = {
+                    value,
+                    prev: this.valueStack
+                };
+            }
+        } else /* this.flushDepth < this.lastFlushDepth */ {
+            fragment = this.prepareAddition(fragment);
+
+            // Add missed opening brackets/parentheses
+            for (let i = this.lastFlushDepth - 1; i >= this.flushDepth; i--) {
+                this.jsonParseOffset--;
+                fragment = (this.stack[i] === STACK_OBJECT ? '{' : '[') + fragment;
+            }
+
+            this.parseAndAppend(fragment, false);
+
+            for (let i = this.lastFlushDepth - 1; i >= this.flushDepth; i--) {
+                this.valueStack = this.valueStack.prev;
+            }
+        }
+
+        this.lastFlushDepth = this.flushDepth;
+    }
+
+    push(chunk) {
+        if (typeof chunk !== 'string') {
+            // Suppose chunk is Buffer or Uint8Array
+
+            // Prepend uncompleted byte sequence if any
+            if (this.pendingByteSeq !== null) {
+                const origRawChunk = chunk;
+                chunk = new Uint8Array(this.pendingByteSeq.length + origRawChunk.length);
+                chunk.set(this.pendingByteSeq);
+                chunk.set(origRawChunk, this.pendingByteSeq.length);
+                this.pendingByteSeq = null;
+            }
+
+            // In case Buffer/Uint8Array, an input is encoded in UTF8
+            // Seek for parts of uncompleted UTF8 symbol on the ending
+            // This makes sense only if we expect more chunks and last char is not multi-bytes
+            if (chunk[chunk.length - 1] > 127) {
+                for (let seqLength = 0; seqLength < chunk.length; seqLength++) {
+                    const byte = chunk[chunk.length - 1 - seqLength];
+
+                    // 10xxxxxx - 2nd, 3rd or 4th byte
+                    // 110xxxxx – first byte of 2-byte sequence
+                    // 1110xxxx - first byte of 3-byte sequence
+                    // 11110xxx - first byte of 4-byte sequence
+                    if (byte >> 6 === 3) {
+                        seqLength++;
+
+                        // If the sequence is really incomplete, then preserve it
+                        // for the future chunk and cut off it from the current chunk
+                        if ((seqLength !== 4 && byte >> 3 === 0b11110) ||
+                            (seqLength !== 3 && byte >> 4 === 0b1110) ||
+                            (seqLength !== 2 && byte >> 5 === 0b110)) {
+                            this.pendingByteSeq = chunk.slice(chunk.length - seqLength);
+                            chunk = chunk.slice(0, -seqLength);
+                        }
+
+                        break;
+                    }
+                }
+            }
+
+            // Convert chunk to a string, since single decode per chunk
+            // is much effective than decode multiple small substrings
+            chunk = decoder.decode(chunk);
+        }
+
+        const chunkLength = chunk.length;
+        let lastFlushPoint = 0;
+        let flushPoint = 0;
+
+        // Main scan loop
+        scan: for (let i = 0; i < chunkLength; i++) {
+            if (this.stateString) {
+                for (; i < chunkLength; i++) {
+                    if (this.stateStringEscape) {
+                        this.stateStringEscape = false;
+                    } else {
+                        switch (chunk.charCodeAt(i)) {
+                            case 0x22: /* " */
+                                this.stateString = false;
+                                continue scan;
+
+                            case 0x5C: /* \ */
+                                this.stateStringEscape = true;
+                        }
+                    }
+                }
+
+                break;
+            }
+
+            switch (chunk.charCodeAt(i)) {
+                case 0x22: /* " */
+                    this.stateString = true;
+                    this.stateStringEscape = false;
+                    break;
+
+                case 0x2C: /* , */
+                    flushPoint = i;
+                    break;
+
+                case 0x7B: /* { */
+                    // Open an object
+                    flushPoint = i + 1;
+                    this.stack[this.flushDepth++] = STACK_OBJECT;
+                    break;
+
+                case 0x5B: /* [ */
+                    // Open an array
+                    flushPoint = i + 1;
+                    this.stack[this.flushDepth++] = STACK_ARRAY;
+                    break;
+
+                case 0x5D: /* ] */
+                case 0x7D: /* } */
+                    // Close an object or array
+                    flushPoint = i + 1;
+                    this.flushDepth--;
+
+                    if (this.flushDepth < this.lastFlushDepth) {
+                        this.flush(chunk, lastFlushPoint, flushPoint);
+                        lastFlushPoint = flushPoint;
+                    }
+
+                    break;
+
+                case 0x09: /* \t */
+                case 0x0A: /* \n */
+                case 0x0D: /* \r */
+                case 0x20: /* space */
+                    // Move points forward when they points on current position and it's a whitespace
+                    if (lastFlushPoint === i) {
+                        lastFlushPoint++;
+                    }
+
+                    if (flushPoint === i) {
+                        flushPoint++;
+                    }
+
+                    break;
+            }
+        }
+
+        if (flushPoint > lastFlushPoint) {
+            this.flush(chunk, lastFlushPoint, flushPoint);
+        }
+
+        // Produce pendingChunk if something left
+        if (flushPoint < chunkLength) {
+            if (this.pendingChunk !== null) {
+                // When there is already a pending chunk then no flush happened,
+                // appending entire chunk to pending one
+                this.pendingChunk += chunk;
+            } else {
+                // Create a pending chunk, it will start with non-whitespace since
+                // flushPoint was moved forward away from whitespaces on scan
+                this.pendingChunk = chunk.slice(flushPoint, chunkLength);
+            }
+        }
+
+        this.chunkOffset += chunkLength;
+    }
+
+    finish() {
+        if (this.pendingChunk !== null) {
+            this.flush('', 0, 0);
+            this.pendingChunk = null;
+        }
+
+        return this.value;
+    }
+};

app_vue/node_modules/@discoveryjs/json-ext/src/stringify-info.js

@@ -0,0 +1,231 @@
+const {
+    normalizeReplacer,
+    normalizeSpace,
+    replaceValue,
+    getTypeNative,
+    getTypeAsync,
+    isLeadingSurrogate,
+    isTrailingSurrogate,
+    escapableCharCodeSubstitution,
+    type: {
+        PRIMITIVE,
+        OBJECT,
+        ARRAY,
+        PROMISE,
+        STRING_STREAM,
+        OBJECT_STREAM
+    }
+} = require('./utils');
+const charLength2048 = Array.from({ length: 2048 }).map((_, code) => {
+    if (escapableCharCodeSubstitution.hasOwnProperty(code)) {
+        return 2; // \X
+    }
+
+    if (code < 0x20) {
+        return 6; // \uXXXX
+    }
+
+    return code < 128 ? 1 : 2; // UTF8 bytes
+});
+
+function stringLength(str) {
+    let len = 0;
+    let prevLeadingSurrogate = false;
+
+    for (let i = 0; i < str.length; i++) {
+        const code = str.charCodeAt(i);
+
+        if (code < 2048) {
+            len += charLength2048[code];
+        } else if (isLeadingSurrogate(code)) {
+            len += 6; // \uXXXX since no pair with trailing surrogate yet
+            prevLeadingSurrogate = true;
+            continue;
+        } else if (isTrailingSurrogate(code)) {
+            len = prevLeadingSurrogate
+                ? len - 2  // surrogate pair (4 bytes), since we calculate prev leading surrogate as 6 bytes, substruct 2 bytes
+                : len + 6; // \uXXXX
+        } else {
+            len += 3; // code >= 2048 is 3 bytes length for UTF8
+        }
+
+        prevLeadingSurrogate = false;
+    }
+
+    return len + 2; // +2 for quotes
+}
+
+function primitiveLength(value) {
+    switch (typeof value) {
+        case 'string':
+            return stringLength(value);
+
+        case 'number':
+            return Number.isFinite(value) ? String(value).length : 4 /* null */;
+
+        case 'boolean':
+            return value ? 4 /* true */ : 5 /* false */;
+
+        case 'undefined':
+        case 'object':
+            return 4; /* null */
+
+        default:
+            return 0;
+    }
+}
+
+function spaceLength(space) {
+    space = normalizeSpace(space);
+    return typeof space === 'string' ? space.length : 0;
+}
+
+module.exports = function jsonStringifyInfo(value, replacer, space, options) {
+    function walk(holder, key, value) {
+        if (stop) {
+            return;
+        }
+
+        value = replaceValue(holder, key, value, replacer);
+
+        let type = getType(value);
+
+        // check for circular structure
+        if (type !== PRIMITIVE && stack.has(value)) {
+            circular.add(value);
+            length += 4; // treat as null
+
+            if (!options.continueOnCircular) {
+                stop = true;
+            }
+
+            return;
+        }
+
+        switch (type) {
+            case PRIMITIVE:
+                if (value !== undefined || Array.isArray(holder)) {
+                    length += primitiveLength(value);
+                } else if (holder === root) {
+                    length += 9; // FIXME: that's the length of undefined, should we normalize behaviour to convert it to null?
+                }
+                break;
+
+            case OBJECT: {
+                if (visited.has(value)) {
+                    duplicate.add(value);
+                    length += visited.get(value);
+                    break;
+                }
+
+                const valueLength = length;
+                let entries = 0;
+
+                length += 2; // {}
+
+                stack.add(value);
+
+                for (const key in value) {
+                    if (hasOwnProperty.call(value, key) && (allowlist === null || allowlist.has(key))) {
+                        const prevLength = length;
+                        walk(value, key, value[key]);
+
+                        if (prevLength !== length) {
+                            // value is printed
+                            length += stringLength(key) + 1; // "key":
+                            entries++;
+                        }
+                    }
+                }
+
+                if (entries > 1) {
+                    length += entries - 1; // commas
+                }
+
+                stack.delete(value);
+
+                if (space > 0 && entries > 0) {
+                    length += (1 + (stack.size + 1) * space + 1) * entries; // for each key-value: \n{space}
+                    length += 1 + stack.size * space; // for }
+                }
+
+                visited.set(value, length - valueLength);
+
+                break;
+            }
+
+            case ARRAY: {
+                if (visited.has(value)) {
+                    duplicate.add(value);
+                    length += visited.get(value);
+                    break;
+                }
+
+                const valueLength = length;
+
+                length += 2; // []
+
+                stack.add(value);
+
+                for (let i = 0; i < value.length; i++) {
+                    walk(value, i, value[i]);
+                }
+
+                if (value.length > 1) {
+                    length += value.length - 1; // commas
+                }
+
+                stack.delete(value);
+
+                if (space > 0 && value.length > 0) {
+                    length += (1 + (stack.size + 1) * space) * value.length; // for each element: \n{space}
+                    length += 1 + stack.size * space; // for ]
+                }
+
+                visited.set(value, length - valueLength);
+
+                break;
+            }
+
+            case PROMISE:
+            case STRING_STREAM:
+                async.add(value);
+                break;
+
+            case OBJECT_STREAM:
+                length += 2; // []
+                async.add(value);
+                break;
+        }
+    }
+
+    let allowlist = null;
+    replacer = normalizeReplacer(replacer);
+
+    if (Array.isArray(replacer)) {
+        allowlist = new Set(replacer);
+        replacer = null;
+    }
+
+    space = spaceLength(space);
+    options = options || {};
+
+    const visited = new Map();
+    const stack = new Set();
+    const duplicate = new Set();
+    const circular = new Set();
+    const async = new Set();
+    const getType = options.async ? getTypeAsync : getTypeNative;
+    const root = { '': value };
+    let stop = false;
+    let length = 0;
+
+    walk(root, '', value);
+
+    return {
+        minLength: isNaN(length) ? Infinity : length,
+        circular: [...circular],
+        duplicate: [...duplicate],
+        async: [...async]
+    };
+};

app_vue/node_modules/@discoveryjs/json-ext/src/stringify-stream-browser.js

@@ -0,0 +1,3 @@
+module.exports = () => {
+    throw new Error('Method is not supported');
+};

app_vue/node_modules/@discoveryjs/json-ext/src/stringify-stream.js

@@ -0,0 +1,408 @@
+const { Readable } = require('stream');
+const {
+    normalizeReplacer,
+    normalizeSpace,
+    replaceValue,
+    getTypeAsync,
+    type: {
+        PRIMITIVE,
+        OBJECT,
+        ARRAY,
+        PROMISE,
+        STRING_STREAM,
+        OBJECT_STREAM
+    }
+} = require('./utils');
+const noop = () => {};
+const hasOwnProperty = Object.prototype.hasOwnProperty;
+
+// TODO: Remove when drop support for Node.js 10
+// Node.js 10 has no well-formed JSON.stringify()
+// https://github.com/tc39/proposal-well-formed-stringify
+// Adopted code from https://bugs.chromium.org/p/v8/issues/detail?id=7782#c12
+const wellformedStringStringify = JSON.stringify('\ud800') === '"\\ud800"'
+    ? JSON.stringify
+    : s => JSON.stringify(s).replace(
+        /\p{Surrogate}/gu,
+        m => `\\u${m.charCodeAt(0).toString(16)}`
+    );
+
+function push() {
+    this.push(this._stack.value);
+    this.popStack();
+}
+
+function pushPrimitive(value) {
+    switch (typeof value) {
+        case 'string':
+            this.push(this.encodeString(value));
+            break;
+
+        case 'number':
+            this.push(Number.isFinite(value) ? this.encodeNumber(value) : 'null');
+            break;
+
+        case 'boolean':
+            this.push(value ? 'true' : 'false');
+            break;
+
+        case 'undefined':
+        case 'object': // typeof null === 'object'
+            this.push('null');
+            break;
+
+        default:
+            this.destroy(new TypeError(`Do not know how to serialize a ${value.constructor && value.constructor.name || typeof value}`));
+    }
+}
+
+function processObjectEntry(key) {
+    const current = this._stack;
+
+    if (!current.first) {
+        current.first = true;
+    } else {
+        this.push(',');
+    }
+
+    if (this.space) {
+        this.push(`\n${this.space.repeat(this._depth)}${this.encodeString(key)}: `);
+    } else {
+        this.push(this.encodeString(key) + ':');
+    }
+}
+
+function processObject() {
+    const current = this._stack;
+
+    // when no keys left, remove obj from stack
+    if (current.index === current.keys.length) {
+        if (this.space && current.first) {
+            this.push(`\n${this.space.repeat(this._depth - 1)}}`);
+        } else {
+            this.push('}');
+        }
+
+        this.popStack();
+        return;
+    }
+
+    const key = current.keys[current.index];
+
+    this.processValue(current.value, key, current.value[key], processObjectEntry);
+    current.index++;
+}
+
+function processArrayItem(index) {
+    if (index !== 0) {
+        this.push(',');
+    }
+
+    if (this.space) {
+        this.push(`\n${this.space.repeat(this._depth)}`);
+    }
+}
+
+function processArray() {
+    const current = this._stack;
+
+    if (current.index === current.value.length) {
+        if (this.space && current.index > 0) {
+            this.push(`\n${this.space.repeat(this._depth - 1)}]`);
+        } else {
+            this.push(']');
+        }
+
+        this.popStack();
+        return;
+    }
+
+    this.processValue(current.value, current.index, current.value[current.index], processArrayItem);
+    current.index++;
+}
+
+function createStreamReader(fn) {
+    return function() {
+        const current = this._stack;
+        const data = current.value.read(this._readSize);
+
+        if (data !== null) {
+            current.first = false;
+            fn.call(this, data, current);
+        } else {
+            if ((current.first && !current.value._readableState.reading) || current.ended) {
+                this.popStack();
+            } else {
+                current.first = true;
+                current.awaiting = true;
+            }
+        }
+    };
+}
+
+const processReadableObject = createStreamReader(function(data, current) {
+    this.processValue(current.value, current.index, data, processArrayItem);
+    current.index++;
+});
+
+const processReadableString = createStreamReader(function(data) {
+    this.push(data);
+});
+
+class JsonStringifyStream extends Readable {
+    constructor(value, replacer, space) {
+        super({
+            autoDestroy: true
+        });
+
+        this.getKeys = Object.keys;
+        this.replacer = normalizeReplacer(replacer);
+
+        if (Array.isArray(this.replacer)) {
+            const allowlist = this.replacer;
+
+            this.getKeys = (value) => allowlist.filter(key => hasOwnProperty.call(value, key));
+            this.replacer = null;
+        }
+
+        this.space = normalizeSpace(space);
+        this._depth = 0;
+
+        this.error = null;
+        this._processing = false;
+        this._ended = false;
+
+        this._readSize = 0;
+        this._buffer = '';
+
+        this._stack = null;
+        this._visited = new WeakSet();
+
+        this.pushStack({
+            handler: () => {
+                this.popStack();
+                this.processValue({ '': value }, '', value, noop);
+            }
+        });
+    }
+
+    encodeString(value) {
+        if (/[^\x20-\uD799]|[\x22\x5c]/.test(value)) {
+            return wellformedStringStringify(value);
+        }
+
+        return '"' + value + '"';
+    }
+
+    encodeNumber(value) {
+        return value;
+    }
+
+    processValue(holder, key, value, callback) {
+        value = replaceValue(holder, key, value, this.replacer);
+
+        let type = getTypeAsync(value);
+
+        switch (type) {
+            case PRIMITIVE:
+                if (callback !== processObjectEntry || value !== undefined) {
+                    callback.call(this, key);
+                    pushPrimitive.call(this, value);
+                }
+                break;
+
+            case OBJECT:
+                callback.call(this, key);
+
+                // check for circular structure
+                if (this._visited.has(value)) {
+                    return this.destroy(new TypeError('Converting circular structure to JSON'));
+                }
+
+                this._visited.add(value);
+                this._depth++;
+                this.push('{');
+                this.pushStack({
+                    handler: processObject,
+                    value,
+                    index: 0,
+                    first: false,
+                    keys: this.getKeys(value)
+                });
+                break;
+
+            case ARRAY:
+                callback.call(this, key);
+
+                // check for circular structure
+                if (this._visited.has(value)) {
+                    return this.destroy(new TypeError('Converting circular structure to JSON'));
+                }
+
+                this._visited.add(value);
+
+                this.push('[');
+                this.pushStack({
+                    handler: processArray,
+                    value,
+                    index: 0
+                });
+                this._depth++;
+                break;
+
+            case PROMISE:
+                this.pushStack({
+                    handler: noop,
+                    awaiting: true
+                });
+
+                Promise.resolve(value)
+                    .then(resolved => {
+                        this.popStack();
+                        this.processValue(holder, key, resolved, callback);
+                        this.processStack();
+                    })
+                    .catch(error => {
+                        this.destroy(error);
+                    });
+                break;
+
+            case STRING_STREAM:
+            case OBJECT_STREAM:
+                callback.call(this, key);
+
+                // TODO: Remove when drop support for Node.js 10
+                // Used `_readableState.endEmitted` as fallback, since Node.js 10 has no `readableEnded` getter
+                if (value.readableEnded || value._readableState.endEmitted) {
+                    return this.destroy(new Error('Readable Stream has ended before it was serialized. All stream data have been lost'));
+                }
+
+                if (value.readableFlowing) {
+                    return this.destroy(new Error('Readable Stream is in flowing mode, data may have been lost. Trying to pause stream.'));
+                }
+
+                if (type === OBJECT_STREAM) {
+                    this.push('[');
+                    this.pushStack({
+                        handler: push,
+                        value: this.space ? '\n' + this.space.repeat(this._depth) + ']' : ']'
+                    });
+                    this._depth++;
+                }
+
+                const self = this.pushStack({
+                    handler: type === OBJECT_STREAM ? processReadableObject : processReadableString,
+                    value,
+                    index: 0,
+                    first: false,
+                    ended: false,
+                    awaiting: !value.readable || value.readableLength === 0
+                });
+                const continueProcessing = () => {
+                    if (self.awaiting) {
+                        self.awaiting = false;
+                        this.processStack();
+                    }
+                };
+
+                value.once('error', error => this.destroy(error));
+                value.once('end', () => {
+                    self.ended = true;
+                    continueProcessing();
+                });
+                value.on('readable', continueProcessing);
+                break;
+        }
+    }
+
+    pushStack(node) {
+        node.prev = this._stack;
+        return this._stack = node;
+    }
+
+    popStack() {
+        const { handler, value } = this._stack;
+
+        if (handler === processObject || handler === processArray || handler === processReadableObject) {
+            this._visited.delete(value);
+            this._depth--;
+        }
+
+        this._stack = this._stack.prev;
+    }
+
+    processStack() {
+        if (this._processing || this._ended) {
+            return;
+        }
+
+        try {
+            this._processing = true;
+
+            while (this._stack !== null && !this._stack.awaiting) {
+                this._stack.handler.call(this);
+
+                if (!this._processing) {
+                    return;
+                }
+            }
+
+            this._processing = false;
+        } catch (error) {
+            this.destroy(error);
+            return;
+        }
+
+        if (this._stack === null && !this._ended) {
+            this._finish();
+            this.push(null);
+        }
+    }
+
+    push(data) {
+        if (data !== null) {
+            this._buffer += data;
+
+            // check buffer overflow
+            if (this._buffer.length < this._readSize) {
+                return;
+            }
+
+            // flush buffer
+            data = this._buffer;
+            this._buffer = '';
+            this._processing = false;
+        }
+
+        super.push(data);
+    }
+
+    _read(size) {
+        // start processing
+        this._readSize = size || this.readableHighWaterMark;
+        this.processStack();
+    }
+
+    _finish() {
+        this._ended = true;
+        this._processing = false;
+        this._stack = null;
+        this._visited = null;
+
+        if (this._buffer && this._buffer.length) {
+            super.push(this._buffer); // flush buffer
+        }
+
+        this._buffer = '';
+    }
+
+    _destroy(error, cb) {
+        this.error = this.error || error;
+        this._finish();
+        cb(error);
+    }
+}
+
+module.exports = function createJsonStringifyStream(value, replacer, space) {
+    return new JsonStringifyStream(value, replacer, space);
+};

app_vue/node_modules/@discoveryjs/json-ext/src/text-decoder-browser.js

@@ -0,0 +1 @@
+module.exports = TextDecoder;

app_vue/node_modules/@discoveryjs/json-ext/src/text-decoder.js

@@ -0,0 +1 @@
+module.exports = require('util').TextDecoder;

app_vue/node_modules/@discoveryjs/json-ext/src/utils.js

@@ -0,0 +1,149 @@
+const PrimitiveType = 1;
+const ObjectType = 2;
+const ArrayType = 3;
+const PromiseType = 4;
+const ReadableStringType = 5;
+const ReadableObjectType = 6;
+// https://tc39.es/ecma262/#table-json-single-character-escapes
+const escapableCharCodeSubstitution = { // JSON Single Character Escape Sequences
+    0x08: '\\b',
+    0x09: '\\t',
+    0x0a: '\\n',
+    0x0c: '\\f',
+    0x0d: '\\r',
+    0x22: '\\\"',
+    0x5c: '\\\\'
+};
+
+function isLeadingSurrogate(code) {
+    return code >= 0xD800 && code <= 0xDBFF;
+}
+
+function isTrailingSurrogate(code) {
+    return code >= 0xDC00 && code <= 0xDFFF;
+}
+
+function isReadableStream(value) {
+    return (
+        typeof value.pipe === 'function' &&
+        typeof value._read === 'function' &&
+        typeof value._readableState === 'object' && value._readableState !== null
+    );
+}
+
+function replaceValue(holder, key, value, replacer) {
+    if (value && typeof value.toJSON === 'function') {
+        value = value.toJSON();
+    }
+
+    if (replacer !== null) {
+        value = replacer.call(holder, String(key), value);
+    }
+
+    switch (typeof value) {
+        case 'function':
+        case 'symbol':
+            value = undefined;
+            break;
+
+        case 'object':
+            if (value !== null) {
+                const cls = value.constructor;
+                if (cls === String || cls === Number || cls === Boolean) {
+                    value = value.valueOf();
+                }
+            }
+            break;
+    }
+
+    return value;
+}
+
+function getTypeNative(value) {
+    if (value === null || typeof value !== 'object') {
+        return PrimitiveType;
+    }
+
+    if (Array.isArray(value)) {
+        return ArrayType;
+    }
+
+    return ObjectType;
+}
+
+function getTypeAsync(value) {
+    if (value === null || typeof value !== 'object') {
+        return PrimitiveType;
+    }
+
+    if (typeof value.then === 'function') {
+        return PromiseType;
+    }
+
+    if (isReadableStream(value)) {
+        return value._readableState.objectMode ? ReadableObjectType : ReadableStringType;
+    }
+
+    if (Array.isArray(value)) {
+        return ArrayType;
+    }
+
+    return ObjectType;
+}
+
+function normalizeReplacer(replacer) {
+    if (typeof replacer === 'function') {
+        return replacer;
+    }
+
+    if (Array.isArray(replacer)) {
+        const allowlist = new Set(replacer
+            .map(item => {
+                const cls = item && item.constructor;
+                return cls === String || cls === Number ? String(item) : null;
+            })
+            .filter(item => typeof item === 'string')
+        );
+
+        return [...allowlist];
+    }
+
+    return null;
+}
+
+function normalizeSpace(space) {
+    if (typeof space === 'number') {
+        if (!Number.isFinite(space) || space < 1) {
+            return false;
+        }
+
+        return ' '.repeat(Math.min(space, 10));
+    }
+
+    if (typeof space === 'string') {
+        return space.slice(0, 10) || false;
+    }
+
+    return false;
+}
+
+module.exports = {
+    escapableCharCodeSubstitution,
+    isLeadingSurrogate,
+    isTrailingSurrogate,
+    type: {
+        PRIMITIVE: PrimitiveType,
+        PROMISE: PromiseType,
+        ARRAY: ArrayType,
+        OBJECT: ObjectType,
+        STRING_STREAM: ReadableStringType,
+        OBJECT_STREAM: ReadableObjectType
+    },
+
+    isReadableStream,
+    replaceValue,
+    getTypeNative,
+    getTypeAsync,
+    normalizeReplacer,
+    normalizeSpace
+};

app_vue/node_modules/@discoveryjs/json-ext/src/version.js

@@ -0,0 +1 @@
+module.exports = require('../package.json').version;