vue-i18n-bridge/dist/vue-i18n-bridge.runtime.esm-browser.js

/*!
  * vue-i18n-bridge v9.2.0-beta.6
  * (c) 2021 kazuya kawaguchi
  * Released under the MIT License.
  */
import { ref, getCurrentInstance, computed, watch, onBeforeMount, onUnmounted } from '@vue/composition-api';

/**
 * Original Utilities
 * written by kazuya kawaguchi
 */
const inBrowser = typeof window !== 'undefined';
let mark;
{
    const perf = inBrowser && window.performance;
    if (perf &&
        perf.mark &&
        perf.measure &&
        perf.clearMarks &&
        perf.clearMeasures) {
        mark = (tag) => perf.mark(tag);
    }
}
const RE_ARGS = /\{([0-9a-zA-Z]+)\}/g;
/* eslint-disable */
function format(message, ...args) {
    if (args.length === 1 && isObject(args[0])) {
        args = args[0];
    }
    if (!args || !args.hasOwnProperty) {
        args = {};
    }
    return message.replace(RE_ARGS, (match, identifier) => {
        return args.hasOwnProperty(identifier) ? args[identifier] : '';
    });
}
const hasSymbol = typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol';
const makeSymbol = (name) => hasSymbol ? Symbol(name) : name;
const generateFormatCacheKey = (locale, key, source) => friendlyJSONstringify({ l: locale, k: key, s: source });
const friendlyJSONstringify = (json) => JSON.stringify(json)
    .replace(/\u2028/g, '\\u2028')
    .replace(/\u2029/g, '\\u2029')
    .replace(/\u0027/g, '\\u0027');
const isNumber = (val) => typeof val === 'number' && isFinite(val);
const isDate = (val) => toTypeString(val) === '[object Date]';
const isRegExp = (val) => toTypeString(val) === '[object RegExp]';
const isEmptyObject = (val) => isPlainObject(val) && Object.keys(val).length === 0;
function warn(msg, err) {
    if (typeof console !== 'undefined') {
        console.warn(`[intlify] ` + msg);
        /* istanbul ignore if */
        if (err) {
            console.warn(err.stack);
        }
    }
}
const assign = Object.assign;
let _globalThis;
const getGlobalThis = () => {
    // prettier-ignore
    return (_globalThis ||
        (_globalThis =
            typeof globalThis !== 'undefined'
                ? globalThis
                : typeof self !== 'undefined'
                    ? self
                    : typeof window !== 'undefined'
                        ? window
                        : typeof global !== 'undefined'
                            ? global
                            : {}));
};
function escapeHtml(rawText) {
    return rawText
        .replace(/</g, '&lt;')
        .replace(/>/g, '&gt;')
        .replace(/"/g, '&quot;')
        .replace(/'/g, '&apos;');
}
const hasOwnProperty = Object.prototype.hasOwnProperty;
function hasOwn(obj, key) {
    return hasOwnProperty.call(obj, key);
}
/* eslint-enable */
/**
 * Useful Utilities By Evan you
 * Modified by kazuya kawaguchi
 * MIT License
 * https://github.com/vuejs/vue-next/blob/master/packages/shared/src/index.ts
 * https://github.com/vuejs/vue-next/blob/master/packages/shared/src/codeframe.ts
 */
const isArray = Array.isArray;
const isFunction = (val) => typeof val === 'function';
const isString = (val) => typeof val === 'string';
const isBoolean = (val) => typeof val === 'boolean';
const isObject = (val) => // eslint-disable-line
 val !== null && typeof val === 'object';
const objectToString = Object.prototype.toString;
const toTypeString = (value) => objectToString.call(value);
const isPlainObject = (val) => toTypeString(val) === '[object Object]';
// for converting list and named values to displayed strings.
const toDisplayString = (val) => {
    return val == null
        ? ''
        : isArray(val) || (isPlainObject(val) && val.toString === objectToString)
            ? JSON.stringify(val, null, 2)
            : String(val);
};

const CompileErrorCodes = {
    // tokenizer error codes
    EXPECTED_TOKEN: 1,
    INVALID_TOKEN_IN_PLACEHOLDER: 2,
    UNTERMINATED_SINGLE_QUOTE_IN_PLACEHOLDER: 3,
    UNKNOWN_ESCAPE_SEQUENCE: 4,
    INVALID_UNICODE_ESCAPE_SEQUENCE: 5,
    UNBALANCED_CLOSING_BRACE: 6,
    UNTERMINATED_CLOSING_BRACE: 7,
    EMPTY_PLACEHOLDER: 8,
    NOT_ALLOW_NEST_PLACEHOLDER: 9,
    INVALID_LINKED_FORMAT: 10,
    // parser error codes
    MUST_HAVE_MESSAGES_IN_PLURAL: 11,
    UNEXPECTED_EMPTY_LINKED_MODIFIER: 12,
    UNEXPECTED_EMPTY_LINKED_KEY: 13,
    UNEXPECTED_LEXICAL_ANALYSIS: 14,
    // Special value for higher-order compilers to pick up the last code
    // to avoid collision of error codes. This should always be kept as the last
    // item.
    __EXTEND_POINT__: 15
};
/** @internal */
const errorMessages$2 = {
    // tokenizer error messages
    [CompileErrorCodes.EXPECTED_TOKEN]: `Expected token: '{0}'`,
    [CompileErrorCodes.INVALID_TOKEN_IN_PLACEHOLDER]: `Invalid token in placeholder: '{0}'`,
    [CompileErrorCodes.UNTERMINATED_SINGLE_QUOTE_IN_PLACEHOLDER]: `Unterminated single quote in placeholder`,
    [CompileErrorCodes.UNKNOWN_ESCAPE_SEQUENCE]: `Unknown escape sequence: \\{0}`,
    [CompileErrorCodes.INVALID_UNICODE_ESCAPE_SEQUENCE]: `Invalid unicode escape sequence: {0}`,
    [CompileErrorCodes.UNBALANCED_CLOSING_BRACE]: `Unbalanced closing brace`,
    [CompileErrorCodes.UNTERMINATED_CLOSING_BRACE]: `Unterminated closing brace`,
    [CompileErrorCodes.EMPTY_PLACEHOLDER]: `Empty placeholder`,
    [CompileErrorCodes.NOT_ALLOW_NEST_PLACEHOLDER]: `Not allowed nest placeholder`,
    [CompileErrorCodes.INVALID_LINKED_FORMAT]: `Invalid linked format`,
    // parser error messages
    [CompileErrorCodes.MUST_HAVE_MESSAGES_IN_PLURAL]: `Plural must have messages`,
    [CompileErrorCodes.UNEXPECTED_EMPTY_LINKED_MODIFIER]: `Unexpected empty linked modifier`,
    [CompileErrorCodes.UNEXPECTED_EMPTY_LINKED_KEY]: `Unexpected empty linked key`,
    [CompileErrorCodes.UNEXPECTED_LEXICAL_ANALYSIS]: `Unexpected lexical analysis in token: '{0}'`
};
function createCompileError(code, loc, options = {}) {
    const { domain, messages, args } = options;
    const msg = format((messages || errorMessages$2)[code] || '', ...(args || []))
        ;
    const error = new SyntaxError(String(msg));
    error.code = code;
    if (loc) {
        error.location = loc;
    }
    error.domain = domain;
    return error;
}

const pathStateMachine =  [];
pathStateMachine[0 /* BEFORE_PATH */] = {
    ["w" /* WORKSPACE */]: [0 /* BEFORE_PATH */],
    ["i" /* IDENT */]: [3 /* IN_IDENT */, 0 /* APPEND */],
    ["[" /* LEFT_BRACKET */]: [4 /* IN_SUB_PATH */],
    ["o" /* END_OF_FAIL */]: [7 /* AFTER_PATH */]
};
pathStateMachine[1 /* IN_PATH */] = {
    ["w" /* WORKSPACE */]: [1 /* IN_PATH */],
    ["." /* DOT */]: [2 /* BEFORE_IDENT */],
    ["[" /* LEFT_BRACKET */]: [4 /* IN_SUB_PATH */],
    ["o" /* END_OF_FAIL */]: [7 /* AFTER_PATH */]
};
pathStateMachine[2 /* BEFORE_IDENT */] = {
    ["w" /* WORKSPACE */]: [2 /* BEFORE_IDENT */],
    ["i" /* IDENT */]: [3 /* IN_IDENT */, 0 /* APPEND */],
    ["0" /* ZERO */]: [3 /* IN_IDENT */, 0 /* APPEND */]
};
pathStateMachine[3 /* IN_IDENT */] = {
    ["i" /* IDENT */]: [3 /* IN_IDENT */, 0 /* APPEND */],
    ["0" /* ZERO */]: [3 /* IN_IDENT */, 0 /* APPEND */],
    ["w" /* WORKSPACE */]: [1 /* IN_PATH */, 1 /* PUSH */],
    ["." /* DOT */]: [2 /* BEFORE_IDENT */, 1 /* PUSH */],
    ["[" /* LEFT_BRACKET */]: [4 /* IN_SUB_PATH */, 1 /* PUSH */],
    ["o" /* END_OF_FAIL */]: [7 /* AFTER_PATH */, 1 /* PUSH */]
};
pathStateMachine[4 /* IN_SUB_PATH */] = {
    ["'" /* SINGLE_QUOTE */]: [5 /* IN_SINGLE_QUOTE */, 0 /* APPEND */],
    ["\"" /* DOUBLE_QUOTE */]: [6 /* IN_DOUBLE_QUOTE */, 0 /* APPEND */],
    ["[" /* LEFT_BRACKET */]: [
        4 /* IN_SUB_PATH */,
        2 /* INC_SUB_PATH_DEPTH */
    ],
    ["]" /* RIGHT_BRACKET */]: [1 /* IN_PATH */, 3 /* PUSH_SUB_PATH */],
    ["o" /* END_OF_FAIL */]: 8 /* ERROR */,
    ["l" /* ELSE */]: [4 /* IN_SUB_PATH */, 0 /* APPEND */]
};
pathStateMachine[5 /* IN_SINGLE_QUOTE */] = {
    ["'" /* SINGLE_QUOTE */]: [4 /* IN_SUB_PATH */, 0 /* APPEND */],
    ["o" /* END_OF_FAIL */]: 8 /* ERROR */,
    ["l" /* ELSE */]: [5 /* IN_SINGLE_QUOTE */, 0 /* APPEND */]
};
pathStateMachine[6 /* IN_DOUBLE_QUOTE */] = {
    ["\"" /* DOUBLE_QUOTE */]: [4 /* IN_SUB_PATH */, 0 /* APPEND */],
    ["o" /* END_OF_FAIL */]: 8 /* ERROR */,
    ["l" /* ELSE */]: [6 /* IN_DOUBLE_QUOTE */, 0 /* APPEND */]
};
/**
 * Check if an expression is a literal value.
 */
const literalValueRE = /^\s?(?:true|false|-?[\d.]+|'[^']*'|"[^"]*")\s?$/;
function isLiteral(exp) {
    return literalValueRE.test(exp);
}
/**
 * Strip quotes from a string
 */
function stripQuotes(str) {
    const a = str.charCodeAt(0);
    const b = str.charCodeAt(str.length - 1);
    return a === b && (a === 0x22 || a === 0x27) ? str.slice(1, -1) : str;
}
/**
 * Determine the type of a character in a keypath.
 */
function getPathCharType(ch) {
    if (ch === undefined || ch === null) {
        return "o" /* END_OF_FAIL */;
    }
    const code = ch.charCodeAt(0);
    switch (code) {
        case 0x5b: // [
        case 0x5d: // ]
        case 0x2e: // .
        case 0x22: // "
        case 0x27: // '
            return ch;
        case 0x5f: // _
        case 0x24: // $
        case 0x2d: // -
            return "i" /* IDENT */;
        case 0x09: // Tab (HT)
        case 0x0a: // Newline (LF)
        case 0x0d: // Return (CR)
        case 0xa0: // No-break space (NBSP)
        case 0xfeff: // Byte Order Mark (BOM)
        case 0x2028: // Line Separator (LS)
        case 0x2029: // Paragraph Separator (PS)
            return "w" /* WORKSPACE */;
    }
    return "i" /* IDENT */;
}
/**
 * Format a subPath, return its plain form if it is
 * a literal string or number. Otherwise prepend the
 * dynamic indicator (*).
 */
function formatSubPath(path) {
    const trimmed = path.trim();
    // invalid leading 0
    if (path.charAt(0) === '0' && isNaN(parseInt(path))) {
        return false;
    }
    return isLiteral(trimmed)
        ? stripQuotes(trimmed)
        : "*" /* ASTARISK */ + trimmed;
}
/**
 * Parse a string path into an array of segments
 */
function parse(path) {
    const keys = [];
    let index = -1;
    let mode = 0 /* BEFORE_PATH */;
    let subPathDepth = 0;
    let c;
    let key; // eslint-disable-line
    let newChar;
    let type;
    let transition;
    let action;
    let typeMap;
    const actions = [];
    actions[0 /* APPEND */] = () => {
        if (key === undefined) {
            key = newChar;
        }
        else {
            key += newChar;
        }
    };
    actions[1 /* PUSH */] = () => {
        if (key !== undefined) {
            keys.push(key);
            key = undefined;
        }
    };
    actions[2 /* INC_SUB_PATH_DEPTH */] = () => {
        actions[0 /* APPEND */]();
        subPathDepth++;
    };
    actions[3 /* PUSH_SUB_PATH */] = () => {
        if (subPathDepth > 0) {
            subPathDepth--;
            mode = 4 /* IN_SUB_PATH */;
            actions[0 /* APPEND */]();
        }
        else {
            subPathDepth = 0;
            if (key === undefined) {
                return false;
            }
            key = formatSubPath(key);
            if (key === false) {
                return false;
            }
            else {
                actions[1 /* PUSH */]();
            }
        }
    };
    function maybeUnescapeQuote() {
        const nextChar = path[index + 1];
        if ((mode === 5 /* IN_SINGLE_QUOTE */ &&
            nextChar === "'" /* SINGLE_QUOTE */) ||
            (mode === 6 /* IN_DOUBLE_QUOTE */ &&
                nextChar === "\"" /* DOUBLE_QUOTE */)) {
            index++;
            newChar = '\\' + nextChar;
            actions[0 /* APPEND */]();
            return true;
        }
    }
    while (mode !== null) {
        index++;
        c = path[index];
        if (c === '\\' && maybeUnescapeQuote()) {
            continue;
        }
        type = getPathCharType(c);
        typeMap = pathStateMachine[mode];
        transition = typeMap[type] || typeMap["l" /* ELSE */] || 8 /* ERROR */;
        // check parse error
        if (transition === 8 /* ERROR */) {
            return;
        }
        mode = transition[0];
        if (transition[1] !== undefined) {
            action = actions[transition[1]];
            if (action) {
                newChar = c;
                if (action() === false) {
                    return;
                }
            }
        }
        // check parse finish
        if (mode === 7 /* AFTER_PATH */) {
            return keys;
        }
    }
}
// path token cache
const cache = new Map();
/**
 * key-value message resolver
 *
 * @remarks
 * Resolves messages with the key-value structure. Note that messages with a hierarchical structure such as objects cannot be resolved
 *
 * @param obj - A target object to be resolved with path
 * @param path - A {@link Path | path} to resolve the value of message
 *
 * @returns A resolved {@link PathValue | path value}
 *
 * @VueI18nGeneral
 */
function resolveWithKeyValue(obj, path) {
    return isObject(obj) ? obj[path] : null;
}
/**
 * message resolver
 *
 * @remarks
 * Resolves messages. messages with a hierarchical structure such as objects can be resolved. This resolver is used in VueI18n as default.
 *
 * @param obj - A target object to be resolved with path
 * @param path - A {@link Path | path} to resolve the value of message
 *
 * @returns A resolved {@link PathValue | path value}
 *
 * @VueI18nGeneral
 */
function resolveValue(obj, path) {
    // check object
    if (!isObject(obj)) {
        return null;
    }
    // parse path
    let hit = cache.get(path);
    if (!hit) {
        hit = parse(path);
        if (hit) {
            cache.set(path, hit);
        }
    }
    // check hit
    if (!hit) {
        return null;
    }
    // resolve path value
    const len = hit.length;
    let last = obj;
    let i = 0;
    while (i < len) {
        const val = last[hit[i]];
        if (val === undefined) {
            return null;
        }
        last = val;
        i++;
    }
    return last;
}

const DEFAULT_MODIFIER = (str) => str;
const DEFAULT_MESSAGE = (ctx) => ''; // eslint-disable-line
const DEFAULT_MESSAGE_DATA_TYPE = 'text';
const DEFAULT_NORMALIZE = (values) => values.length === 0 ? '' : values.join('');
const DEFAULT_INTERPOLATE = toDisplayString;
function pluralDefault(choice, choicesLength) {
    choice = Math.abs(choice);
    if (choicesLength === 2) {
        // prettier-ignore
        return choice
            ? choice > 1
                ? 1
                : 0
            : 1;
    }
    return choice ? Math.min(choice, 2) : 0;
}
function getPluralIndex(options) {
    // prettier-ignore
    const index = isNumber(options.pluralIndex)
        ? options.pluralIndex
        : -1;
    // prettier-ignore
    return options.named && (isNumber(options.named.count) || isNumber(options.named.n))
        ? isNumber(options.named.count)
            ? options.named.count
            : isNumber(options.named.n)
                ? options.named.n
                : index
        : index;
}
function normalizeNamed(pluralIndex, props) {
    if (!props.count) {
        props.count = pluralIndex;
    }
    if (!props.n) {
        props.n = pluralIndex;
    }
}
function createMessageContext(options = {}) {
    const locale = options.locale;
    const pluralIndex = getPluralIndex(options);
    const pluralRule = isObject(options.pluralRules) &&
        isString(locale) &&
        isFunction(options.pluralRules[locale])
        ? options.pluralRules[locale]
        : pluralDefault;
    const orgPluralRule = isObject(options.pluralRules) &&
        isString(locale) &&
        isFunction(options.pluralRules[locale])
        ? pluralDefault
        : undefined;
    const plural = (messages) => messages[pluralRule(pluralIndex, messages.length, orgPluralRule)];
    const _list = options.list || [];
    const list = (index) => _list[index];
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    const _named = options.named || {};
    isNumber(options.pluralIndex) && normalizeNamed(pluralIndex, _named);
    const named = (key) => _named[key];
    // TODO: need to design resolve message function?
    function message(key) {
        // prettier-ignore
        const msg = isFunction(options.messages)
            ? options.messages(key)
            : isObject(options.messages)
                ? options.messages[key]
                : false;
        return !msg
            ? options.parent
                ? options.parent.message(key) // resolve from parent messages
                : DEFAULT_MESSAGE
            : msg;
    }
    const _modifier = (name) => options.modifiers
        ? options.modifiers[name]
        : DEFAULT_MODIFIER;
    const normalize = isPlainObject(options.processor) && isFunction(options.processor.normalize)
        ? options.processor.normalize
        : DEFAULT_NORMALIZE;
    const interpolate = isPlainObject(options.processor) &&
        isFunction(options.processor.interpolate)
        ? options.processor.interpolate
        : DEFAULT_INTERPOLATE;
    const type = isPlainObject(options.processor) && isString(options.processor.type)
        ? options.processor.type
        : DEFAULT_MESSAGE_DATA_TYPE;
    const ctx = {
        ["list" /* LIST */]: list,
        ["named" /* NAMED */]: named,
        ["plural" /* PLURAL */]: plural,
        ["linked" /* LINKED */]: (key, modifier) => {
            // TODO: should check `key`
            const msg = message(key)(ctx);
            return isString(modifier) ? _modifier(modifier)(msg) : msg;
        },
        ["message" /* MESSAGE */]: message,
        ["type" /* TYPE */]: type,
        ["interpolate" /* INTERPOLATE */]: interpolate,
        ["normalize" /* NORMALIZE */]: normalize
    };
    return ctx;
}

const IntlifyDevToolsHooks =  {
    I18nInit: 'i18n:init',
    FunctionTranslate: 'function:translate'
};

let devtools = null;
function setDevToolsHook(hook) {
    devtools = hook;
}
function initI18nDevTools(i18n, version, meta) {
    // TODO: queue if devtools is undefined
    devtools &&
        devtools.emit(IntlifyDevToolsHooks.I18nInit, {
            timestamp: Date.now(),
            i18n,
            version,
            meta
        });
}
const translateDevTools = /* #__PURE__*/ createDevToolsHook(IntlifyDevToolsHooks.FunctionTranslate);
function createDevToolsHook(hook) {
    return (payloads) => devtools && devtools.emit(hook, payloads);
}

const CoreWarnCodes = {
    NOT_FOUND_KEY: 1,
    FALLBACK_TO_TRANSLATE: 2,
    CANNOT_FORMAT_NUMBER: 3,
    FALLBACK_TO_NUMBER_FORMAT: 4,
    CANNOT_FORMAT_DATE: 5,
    FALLBACK_TO_DATE_FORMAT: 6,
    __EXTEND_POINT__: 7
};
/** @internal */
const warnMessages$1 = {
    [CoreWarnCodes.NOT_FOUND_KEY]: `Not found '{key}' key in '{locale}' locale messages.`,
    [CoreWarnCodes.FALLBACK_TO_TRANSLATE]: `Fall back to translate '{key}' key with '{target}' locale.`,
    [CoreWarnCodes.CANNOT_FORMAT_NUMBER]: `Cannot format a number value due to not supported Intl.NumberFormat.`,
    [CoreWarnCodes.FALLBACK_TO_NUMBER_FORMAT]: `Fall back to number format '{key}' key with '{target}' locale.`,
    [CoreWarnCodes.CANNOT_FORMAT_DATE]: `Cannot format a date value due to not supported Intl.DateTimeFormat.`,
    [CoreWarnCodes.FALLBACK_TO_DATE_FORMAT]: `Fall back to datetime format '{key}' key with '{target}' locale.`
};
function getWarnMessage$1(code, ...args) {
    return format(warnMessages$1[code], ...args);
}

/**
 * Fallback with simple implemenation
 *
 * @remarks
 * A fallback locale function implemented with a simple fallback algorithm.
 *
 * Basically, it returns the value as specified in the `fallbackLocale` props, and is processed with the fallback inside intlify.
 *
 * @param ctx - A {@link CoreContext | context}
 * @param fallback - A {@link FallbackLocale | fallback locale}
 * @param start - A starting {@link Locale | locale}
 *
 * @returns Fallback locales
 *
 * @VueI18nGeneral
 */
function fallbackWithSimple(ctx, fallback, start // eslint-disable-line @typescript-eslint/no-unused-vars
) {
    // prettier-ignore
    return [...new Set([
            start,
            ...(isArray(fallback)
                ? fallback
                : isObject(fallback)
                    ? Object.keys(fallback)
                    : isString(fallback)
                        ? [fallback]
                        : [start])
        ])];
}
/**
 * Fallback with locale chain
 *
 * @remarks
 * A fallback locale function implemented with a fallback chain algorithm. It's used in VueI18n as default.
 *
 * @param ctx - A {@link CoreContext | context}
 * @param fallback - A {@link FallbackLocale | fallback locale}
 * @param start - A starting {@link Locale | locale}
 *
 * @returns Fallback locales
 *
 * @VueI18nSee [Fallbacking](../guide/essentials/fallback)
 *
 * @VueI18nGeneral
 */
function fallbackWithLocaleChain(ctx, fallback, start) {
    const startLocale = isString(start) ? start : DEFAULT_LOCALE;
    const context = ctx;
    if (!context.__localeChainCache) {
        context.__localeChainCache = new Map();
    }
    let chain = context.__localeChainCache.get(startLocale);
    if (!chain) {
        chain = [];
        // first block defined by start
        let block = [start];
        // while any intervening block found
        while (isArray(block)) {
            block = appendBlockToChain(chain, block, fallback);
        }
        // prettier-ignore
        // last block defined by default
        const defaults = isArray(fallback) || !isPlainObject(fallback)
            ? fallback
            : fallback['default']
                ? fallback['default']
                : null;
        // convert defaults to array
        block = isString(defaults) ? [defaults] : defaults;
        if (isArray(block)) {
            appendBlockToChain(chain, block, false);
        }
        context.__localeChainCache.set(startLocale, chain);
    }
    return chain;
}
function appendBlockToChain(chain, block, blocks) {
    let follow = true;
    for (let i = 0; i < block.length && isBoolean(follow); i++) {
        const locale = block[i];
        if (isString(locale)) {
            follow = appendLocaleToChain(chain, block[i], blocks);
        }
    }
    return follow;
}
function appendLocaleToChain(chain, locale, blocks) {
    let follow;
    const tokens = locale.split('-');
    do {
        const target = tokens.join('-');
        follow = appendItemToChain(chain, target, blocks);
        tokens.splice(-1, 1);
    } while (tokens.length && follow === true);
    return follow;
}
function appendItemToChain(chain, target, blocks) {
    let follow = false;
    if (!chain.includes(target)) {
        follow = true;
        if (target) {
            follow = target[target.length - 1] !== '!';
            const locale = target.replace(/!/g, '');
            chain.push(locale);
            if ((isArray(blocks) || isPlainObject(blocks)) &&
                blocks[locale] // eslint-disable-line @typescript-eslint/no-explicit-any
            ) {
                // eslint-disable-next-line @typescript-eslint/no-explicit-any
                follow = blocks[locale];
            }
        }
    }
    return follow;
}

/* eslint-disable @typescript-eslint/no-explicit-any */
/**
 * Intlify core-base version
 * @internal
 */
const VERSION$1 = '9.2.0-beta.6';
const NOT_REOSLVED = -1;
const DEFAULT_LOCALE = 'en-US';
const MISSING_RESOLVE_VALUE = '';
function getDefaultLinkedModifiers() {
    return {
        upper: (val) => (isString(val) ? val.toUpperCase() : val),
        lower: (val) => (isString(val) ? val.toLowerCase() : val),
        // prettier-ignore
        capitalize: (val) => (isString(val)
            ? `${val.charAt(0).toLocaleUpperCase()}${val.substr(1)}`
            : val)
    };
}
let _compiler;
let _resolver;
/**
 * Register the message resolver
 *
 * @param resolver - A {@link MessageResolver} function
 *
 * @VueI18nGeneral
 */
function registerMessageResolver(resolver) {
    _resolver = resolver;
}
let _fallbacker;
/**
 * Register the locale fallbacker
 *
 * @param fallbacker - A {@link LocaleFallbacker} function
 *
 * @VueI18nGeneral
 */
function registerLocaleFallbacker(fallbacker) {
    _fallbacker = fallbacker;
}
// Additional Meta for Intlify DevTools
let _additionalMeta = null;
const setAdditionalMeta =  (meta) => {
    _additionalMeta = meta;
};
const getAdditionalMeta =  () => _additionalMeta;
// ID for CoreContext
let _cid = 0;
function createCoreContext(options = {}) {
    // setup options
    const version = isString(options.version) ? options.version : VERSION$1;
    const locale = isString(options.locale) ? options.locale : DEFAULT_LOCALE;
    const fallbackLocale = isArray(options.fallbackLocale) ||
        isPlainObject(options.fallbackLocale) ||
        isString(options.fallbackLocale) ||
        options.fallbackLocale === false
        ? options.fallbackLocale
        : locale;
    const messages = isPlainObject(options.messages)
        ? options.messages
        : { [locale]: {} };
    const datetimeFormats = isPlainObject(options.datetimeFormats)
            ? options.datetimeFormats
            : { [locale]: {} }
        ;
    const numberFormats = isPlainObject(options.numberFormats)
            ? options.numberFormats
            : { [locale]: {} }
        ;
    const modifiers = assign({}, options.modifiers || {}, getDefaultLinkedModifiers());
    const pluralRules = options.pluralRules || {};
    const missing = isFunction(options.missing) ? options.missing : null;
    const missingWarn = isBoolean(options.missingWarn) || isRegExp(options.missingWarn)
        ? options.missingWarn
        : true;
    const fallbackWarn = isBoolean(options.fallbackWarn) || isRegExp(options.fallbackWarn)
        ? options.fallbackWarn
        : true;
    const fallbackFormat = !!options.fallbackFormat;
    const unresolving = !!options.unresolving;
    const postTranslation = isFunction(options.postTranslation)
        ? options.postTranslation
        : null;
    const processor = isPlainObject(options.processor) ? options.processor : null;
    const warnHtmlMessage = isBoolean(options.warnHtmlMessage)
        ? options.warnHtmlMessage
        : true;
    const escapeParameter = !!options.escapeParameter;
    const messageCompiler = isFunction(options.messageCompiler)
        ? options.messageCompiler
        : _compiler;
    const messageResolver = isFunction(options.messageResolver)
        ? options.messageResolver
        : _resolver || resolveWithKeyValue;
    const localeFallbacker = isFunction(options.localeFallbacker)
        ? options.localeFallbacker
        : _fallbacker || fallbackWithSimple;
    const onWarn = isFunction(options.onWarn) ? options.onWarn : warn;
    // setup internal options
    const internalOptions = options;
    const __datetimeFormatters = isObject(internalOptions.__datetimeFormatters)
            ? internalOptions.__datetimeFormatters
            : new Map()
        ;
    const __numberFormatters = isObject(internalOptions.__numberFormatters)
            ? internalOptions.__numberFormatters
            : new Map()
        ;
    const __meta = isObject(internalOptions.__meta) ? internalOptions.__meta : {};
    _cid++;
    const context = {
        version,
        cid: _cid,
        locale,
        fallbackLocale,
        messages,
        modifiers,
        pluralRules,
        missing,
        missingWarn,
        fallbackWarn,
        fallbackFormat,
        unresolving,
        postTranslation,
        processor,
        warnHtmlMessage,
        escapeParameter,
        messageCompiler,
        messageResolver,
        localeFallbacker,
        onWarn,
        __meta
    };
    {
        context.datetimeFormats = datetimeFormats;
        context.numberFormats = numberFormats;
        context.__datetimeFormatters = __datetimeFormatters;
        context.__numberFormatters = __numberFormatters;
    }
    // NOTE: experimental !!
    {
        initI18nDevTools(context, version, __meta);
    }
    return context;
}
/** @internal */
function isTranslateFallbackWarn(fallback, key) {
    return fallback instanceof RegExp ? fallback.test(key) : fallback;
}
/** @internal */
function isTranslateMissingWarn(missing, key) {
    return missing instanceof RegExp ? missing.test(key) : missing;
}
/** @internal */
function handleMissing(context, key, locale, missingWarn, type) {
    const { missing, onWarn } = context;
    if (missing !== null) {
        const ret = missing(context, locale, key, type);
        return isString(ret) ? ret : key;
    }
    else {
        if (isTranslateMissingWarn(missingWarn, key)) {
            onWarn(getWarnMessage$1(CoreWarnCodes.NOT_FOUND_KEY, { key, locale }));
        }
        return key;
    }
}
/** @internal */
function updateFallbackLocale(ctx, locale, fallback) {
    const context = ctx;
    context.__localeChainCache = new Map();
    ctx.localeFallbacker(ctx, fallback, locale);
}
/* eslint-enable @typescript-eslint/no-explicit-any */

let code$2 = CompileErrorCodes.__EXTEND_POINT__;
const inc$2 = () => code$2++;
const CoreErrorCodes = {
    INVALID_ARGUMENT: code$2,
    INVALID_DATE_ARGUMENT: inc$2(),
    INVALID_ISO_DATE_ARGUMENT: inc$2(),
    __EXTEND_POINT__: inc$2() // 18
};
function createCoreError(code) {
    return createCompileError(code, null, { messages: errorMessages$1 } );
}
/** @internal */
const errorMessages$1 = {
    [CoreErrorCodes.INVALID_ARGUMENT]: 'Invalid arguments',
    [CoreErrorCodes.INVALID_DATE_ARGUMENT]: 'The date provided is an invalid Date object.' +
        'Make sure your Date represents a valid date.',
    [CoreErrorCodes.INVALID_ISO_DATE_ARGUMENT]: 'The argument provided is not a valid ISO date string'
};

const NOOP_MESSAGE_FUNCTION = () => '';
const isMessageFunction = (val) => isFunction(val);
// implementation of `translate` function
function translate(context, ...args) {
    const { fallbackFormat, postTranslation, unresolving, fallbackLocale, messages } = context;
    const [key, options] = parseTranslateArgs(...args);
    const missingWarn = isBoolean(options.missingWarn)
        ? options.missingWarn
        : context.missingWarn;
    const fallbackWarn = isBoolean(options.fallbackWarn)
        ? options.fallbackWarn
        : context.fallbackWarn;
    const escapeParameter = isBoolean(options.escapeParameter)
        ? options.escapeParameter
        : context.escapeParameter;
    const resolvedMessage = !!options.resolvedMessage;
    // prettier-ignore
    const defaultMsgOrKey = isString(options.default) || isBoolean(options.default) // default by function option
        ? !isBoolean(options.default)
            ? options.default
            : key
        : fallbackFormat // default by `fallbackFormat` option
            ? key
            : '';
    const enableDefaultMsg = fallbackFormat || defaultMsgOrKey !== '';
    const locale = isString(options.locale) ? options.locale : context.locale;
    // escape params
    escapeParameter && escapeParams(options);
    // resolve message format
    // eslint-disable-next-line prefer-const
    let [format, targetLocale, message] = !resolvedMessage
        ? resolveMessageFormat(context, key, locale, fallbackLocale, fallbackWarn, missingWarn)
        : [
            key,
            locale,
            messages[locale] || {}
        ];
    // if you use default message, set it as message format!
    let cacheBaseKey = key;
    if (!resolvedMessage &&
        !(isString(format) || isMessageFunction(format))) {
        if (enableDefaultMsg) {
            format = defaultMsgOrKey;
            cacheBaseKey = format;
        }
    }
    // checking message format and target locale
    if (!resolvedMessage &&
        (!(isString(format) || isMessageFunction(format)) ||
            !isString(targetLocale))) {
        return unresolving ? NOT_REOSLVED : key;
    }
    if (isString(format) && context.messageCompiler == null) {
        warn(`The message format compilation is not supported in this build. ` +
            `Because message compiler isn't included. ` +
            `You need to pre-compilation all message format. ` +
            `So translate function return '${key}'.`);
        return key;
    }
    // setup compile error detecting
    let occurred = false;
    const errorDetector = () => {
        occurred = true;
    };
    // compile message format
    const msg = !isMessageFunction(format)
        ? compileMessageFormat(context, key, targetLocale, format, cacheBaseKey, errorDetector)
        : format;
    // if occurred compile error, return the message format
    if (occurred) {
        return format;
    }
    // evaluate message with context
    const ctxOptions = getMessageContextOptions(context, targetLocale, message, options);
    const msgContext = createMessageContext(ctxOptions);
    const messaged = evaluateMessage(context, msg, msgContext);
    // if use post translation option, proceed it with handler
    const ret = postTranslation ? postTranslation(messaged) : messaged;
    // NOTE: experimental !!
    {
        // prettier-ignore
        const payloads = {
            timestamp: Date.now(),
            key: isString(key)
                ? key
                : isMessageFunction(format)
                    ? format.key
                    : '',
            locale: targetLocale || (isMessageFunction(format)
                ? format.locale
                : ''),
            format: isString(format)
                ? format
                : isMessageFunction(format)
                    ? format.source
                    : '',
            message: ret
        };
        payloads.meta = assign({}, context.__meta, getAdditionalMeta() || {});
        translateDevTools(payloads);
    }
    return ret;
}
function escapeParams(options) {
    if (isArray(options.list)) {
        options.list = options.list.map(item => isString(item) ? escapeHtml(item) : item);
    }
    else if (isObject(options.named)) {
        Object.keys(options.named).forEach(key => {
            if (isString(options.named[key])) {
                options.named[key] = escapeHtml(options.named[key]);
            }
        });
    }
}
function resolveMessageFormat(context, key, locale, fallbackLocale, fallbackWarn, missingWarn) {
    const { messages, onWarn, messageResolver: resolveValue, localeFallbacker } = context;
    const locales = localeFallbacker(context, fallbackLocale, locale); // eslint-disable-line @typescript-eslint/no-explicit-any
    let message = {};
    let targetLocale;
    let format = null;
    const type = 'translate';
    for (let i = 0; i < locales.length; i++) {
        targetLocale = locales[i];
        if (locale !== targetLocale &&
            isTranslateFallbackWarn(fallbackWarn, key)) {
            onWarn(getWarnMessage$1(CoreWarnCodes.FALLBACK_TO_TRANSLATE, {
                key,
                target: targetLocale
            }));
        }
        message =
            messages[targetLocale] || {};
        let startTag;
        if (inBrowser) {
            window.performance.now();
            startTag = 'intlify-message-resolve-start';
            mark && mark(startTag);
        }
        if ((format = resolveValue(message, key)) === null) {
            // if null, resolve with object key path
            format = message[key]; // eslint-disable-line @typescript-eslint/no-explicit-any
        }
        if (isString(format) || isFunction(format))
            break;
        const missingRet = handleMissing(context, // eslint-disable-line @typescript-eslint/no-explicit-any
        key, targetLocale, missingWarn, type);
        if (missingRet !== key) {
            format = missingRet;
        }
    }
    return [format, targetLocale, message];
}
function compileMessageFormat(context, key, targetLocale, format, cacheBaseKey, errorDetector) {
    const { messageCompiler, warnHtmlMessage } = context;
    if (isMessageFunction(format)) {
        const msg = format;
        msg.locale = msg.locale || targetLocale;
        msg.key = msg.key || key;
        return msg;
    }
    let startTag;
    if (inBrowser) {
        window.performance.now();
        startTag = 'intlify-message-compilation-start';
        mark && mark(startTag);
    }
    const msg = messageCompiler(format, getCompileOptions(context, targetLocale, cacheBaseKey, format, warnHtmlMessage, errorDetector));
    msg.locale = targetLocale;
    msg.key = key;
    msg.source = format;
    return msg;
}
function evaluateMessage(context, msg, msgCtx) {
    let startTag;
    if (inBrowser) {
        window.performance.now();
        startTag = 'intlify-message-evaluation-start';
        mark && mark(startTag);
    }
    const messaged = msg(msgCtx);
    return messaged;
}
/** @internal */
function parseTranslateArgs(...args) {
    const [arg1, arg2, arg3] = args;
    const options = {};
    if (!isString(arg1) && !isNumber(arg1) && !isMessageFunction(arg1)) {
        throw createCoreError(CoreErrorCodes.INVALID_ARGUMENT);
    }
    // prettier-ignore
    const key = isNumber(arg1)
        ? String(arg1)
        : isMessageFunction(arg1)
            ? arg1
            : arg1;
    if (isNumber(arg2)) {
        options.plural = arg2;
    }
    else if (isString(arg2)) {
        options.default = arg2;
    }
    else if (isPlainObject(arg2) && !isEmptyObject(arg2)) {
        options.named = arg2;
    }
    else if (isArray(arg2)) {
        options.list = arg2;
    }
    if (isNumber(arg3)) {
        options.plural = arg3;
    }
    else if (isString(arg3)) {
        options.default = arg3;
    }
    else if (isPlainObject(arg3)) {
        assign(options, arg3);
    }
    return [key, options];
}
function getCompileOptions(context, locale, key, source, warnHtmlMessage, errorDetector) {
    return {
        warnHtmlMessage,
        onError: (err) => {
            errorDetector && errorDetector(err);
            {
                throw err;
            }
        },
        onCacheKey: (source) => generateFormatCacheKey(locale, key, source)
    };
}
function getMessageContextOptions(context, locale, message, options) {
    const { modifiers, pluralRules, messageResolver: resolveValue } = context;
    const resolveMessage = (key) => {
        const val = resolveValue(message, key);
        if (isString(val)) {
            let occurred = false;
            const errorDetector = () => {
                occurred = true;
            };
            const msg = compileMessageFormat(context, key, locale, val, key, errorDetector);
            return !occurred
                ? msg
                : NOOP_MESSAGE_FUNCTION;
        }
        else if (isMessageFunction(val)) {
            return val;
        }
        else {
            // TODO: should be implemented warning message
            return NOOP_MESSAGE_FUNCTION;
        }
    };
    const ctxOptions = {
        locale,
        modifiers,
        pluralRules,
        messages: resolveMessage
    };
    if (context.processor) {
        ctxOptions.processor = context.processor;
    }
    if (options.list) {
        ctxOptions.list = options.list;
    }
    if (options.named) {
        ctxOptions.named = options.named;
    }
    if (isNumber(options.plural)) {
        ctxOptions.pluralIndex = options.plural;
    }
    return ctxOptions;
}

const intlDefined = typeof Intl !== 'undefined';
const Availabilities = {
    dateTimeFormat: intlDefined && typeof Intl.DateTimeFormat !== 'undefined',
    numberFormat: intlDefined && typeof Intl.NumberFormat !== 'undefined'
};

// implementation of `datetime` function
function datetime(context, ...args) {
    const { datetimeFormats, unresolving, fallbackLocale, onWarn, localeFallbacker } = context;
    const { __datetimeFormatters } = context;
    if (!Availabilities.dateTimeFormat) {
        onWarn(getWarnMessage$1(CoreWarnCodes.CANNOT_FORMAT_DATE));
        return MISSING_RESOLVE_VALUE;
    }
    const [key, value, options, overrides] = parseDateTimeArgs(...args);
    const missingWarn = isBoolean(options.missingWarn)
        ? options.missingWarn
        : context.missingWarn;
    const fallbackWarn = isBoolean(options.fallbackWarn)
        ? options.fallbackWarn
        : context.fallbackWarn;
    const part = !!options.part;
    const locale = isString(options.locale) ? options.locale : context.locale;
    const locales = localeFallbacker(context, // eslint-disable-line @typescript-eslint/no-explicit-any
    fallbackLocale, locale);
    if (!isString(key) || key === '') {
        return new Intl.DateTimeFormat(locale).format(value);
    }
    // resolve format
    let datetimeFormat = {};
    let targetLocale;
    let format = null;
    const type = 'datetime format';
    for (let i = 0; i < locales.length; i++) {
        targetLocale = locales[i];
        if (locale !== targetLocale &&
            isTranslateFallbackWarn(fallbackWarn, key)) {
            onWarn(getWarnMessage$1(CoreWarnCodes.FALLBACK_TO_DATE_FORMAT, {
                key,
                target: targetLocale
            }));
        }
        datetimeFormat =
            datetimeFormats[targetLocale] || {};
        format = datetimeFormat[key];
        if (isPlainObject(format))
            break;
        handleMissing(context, key, targetLocale, missingWarn, type); // eslint-disable-line @typescript-eslint/no-explicit-any
    }
    // checking format and target locale
    if (!isPlainObject(format) || !isString(targetLocale)) {
        return unresolving ? NOT_REOSLVED : key;
    }
    let id = `${targetLocale}__${key}`;
    if (!isEmptyObject(overrides)) {
        id = `${id}__${JSON.stringify(overrides)}`;
    }
    let formatter = __datetimeFormatters.get(id);
    if (!formatter) {
        formatter = new Intl.DateTimeFormat(targetLocale, assign({}, format, overrides));
        __datetimeFormatters.set(id, formatter);
    }
    return !part ? formatter.format(value) : formatter.formatToParts(value);
}
/** @internal */
function parseDateTimeArgs(...args) {
    const [arg1, arg2, arg3, arg4] = args;
    let options = {};
    let overrides = {};
    let value;
    if (isString(arg1)) {
        // Only allow ISO strings - other date formats are often supported,
        // but may cause different results in different browsers.
        const matches = arg1.match(/(\d{4}-\d{2}-\d{2})(T|\s)?(.*)/);
        if (!matches) {
            throw createCoreError(CoreErrorCodes.INVALID_ISO_DATE_ARGUMENT);
        }
        // Some browsers can not parse the iso datetime separated by space,
        // this is a compromise solution by replace the 'T'/' ' with 'T'
        const dateTime = matches[3]
            ? matches[3].trim().startsWith('T')
                ? `${matches[1].trim()}${matches[3].trim()}`
                : `${matches[1].trim()}T${matches[3].trim()}`
            : matches[1].trim();
        value = new Date(dateTime);
        try {
            // This will fail if the date is not valid
            value.toISOString();
        }
        catch (e) {
            throw createCoreError(CoreErrorCodes.INVALID_ISO_DATE_ARGUMENT);
        }
    }
    else if (isDate(arg1)) {
        if (isNaN(arg1.getTime())) {
            throw createCoreError(CoreErrorCodes.INVALID_DATE_ARGUMENT);
        }
        value = arg1;
    }
    else if (isNumber(arg1)) {
        value = arg1;
    }
    else {
        throw createCoreError(CoreErrorCodes.INVALID_ARGUMENT);
    }
    if (isString(arg2)) {
        options.key = arg2;
    }
    else if (isPlainObject(arg2)) {
        options = arg2;
    }
    if (isString(arg3)) {
        options.locale = arg3;
    }
    else if (isPlainObject(arg3)) {
        overrides = arg3;
    }
    if (isPlainObject(arg4)) {
        overrides = arg4;
    }
    return [options.key || '', value, options, overrides];
}
/** @internal */
function clearDateTimeFormat(ctx, locale, format) {
    const context = ctx;
    for (const key in format) {
        const id = `${locale}__${key}`;
        if (!context.__datetimeFormatters.has(id)) {
            continue;
        }
        context.__datetimeFormatters.delete(id);
    }
}

// implementation of `number` function
function number(context, ...args) {
    const { numberFormats, unresolving, fallbackLocale, onWarn, localeFallbacker } = context;
    const { __numberFormatters } = context;
    if (!Availabilities.numberFormat) {
        onWarn(getWarnMessage$1(CoreWarnCodes.CANNOT_FORMAT_NUMBER));
        return MISSING_RESOLVE_VALUE;
    }
    const [key, value, options, overrides] = parseNumberArgs(...args);
    const missingWarn = isBoolean(options.missingWarn)
        ? options.missingWarn
        : context.missingWarn;
    const fallbackWarn = isBoolean(options.fallbackWarn)
        ? options.fallbackWarn
        : context.fallbackWarn;
    const part = !!options.part;
    const locale = isString(options.locale) ? options.locale : context.locale;
    const locales = localeFallbacker(context, // eslint-disable-line @typescript-eslint/no-explicit-any
    fallbackLocale, locale);
    if (!isString(key) || key === '') {
        return new Intl.NumberFormat(locale).format(value);
    }
    // resolve format
    let numberFormat = {};
    let targetLocale;
    let format = null;
    const type = 'number format';
    for (let i = 0; i < locales.length; i++) {
        targetLocale = locales[i];
        if (locale !== targetLocale &&
            isTranslateFallbackWarn(fallbackWarn, key)) {
            onWarn(getWarnMessage$1(CoreWarnCodes.FALLBACK_TO_NUMBER_FORMAT, {
                key,
                target: targetLocale
            }));
        }
        numberFormat =
            numberFormats[targetLocale] || {};
        format = numberFormat[key];
        if (isPlainObject(format))
            break;
        handleMissing(context, key, targetLocale, missingWarn, type); // eslint-disable-line @typescript-eslint/no-explicit-any
    }
    // checking format and target locale
    if (!isPlainObject(format) || !isString(targetLocale)) {
        return unresolving ? NOT_REOSLVED : key;
    }
    let id = `${targetLocale}__${key}`;
    if (!isEmptyObject(overrides)) {
        id = `${id}__${JSON.stringify(overrides)}`;
    }
    let formatter = __numberFormatters.get(id);
    if (!formatter) {
        formatter = new Intl.NumberFormat(targetLocale, assign({}, format, overrides));
        __numberFormatters.set(id, formatter);
    }
    return !part ? formatter.format(value) : formatter.formatToParts(value);
}
/** @internal */
function parseNumberArgs(...args) {
    const [arg1, arg2, arg3, arg4] = args;
    let options = {};
    let overrides = {};
    if (!isNumber(arg1)) {
        throw createCoreError(CoreErrorCodes.INVALID_ARGUMENT);
    }
    const value = arg1;
    if (isString(arg2)) {
        options.key = arg2;
    }
    else if (isPlainObject(arg2)) {
        options = arg2;
    }
    if (isString(arg3)) {
        options.locale = arg3;
    }
    else if (isPlainObject(arg3)) {
        overrides = arg3;
    }
    if (isPlainObject(arg4)) {
        overrides = arg4;
    }
    return [options.key || '', value, options, overrides];
}
/** @internal */
function clearNumberFormat(ctx, locale, format) {
    const context = ctx;
    for (const key in format) {
        const id = `${locale}__${key}`;
        if (!context.__numberFormatters.has(id)) {
            continue;
        }
        context.__numberFormatters.delete(id);
    }
}

/**
 * Vue I18n Version
 *
 * @remarks
 * Semver format. Same format as the package.json `version` field.
 *
 * @VueI18nGeneral
 */
const VERSION = '9.2.0-beta.6';
/**
 * This is only called development env
 * istanbul-ignore-next
 */
function initDev() {
    {
        {
            console.info(`You are running a development build of vue-i18n.\n` +
                `Make sure to use the production build (*.prod.js) when deploying for production.`);
        }
    }
}

let code$1 = CoreWarnCodes.__EXTEND_POINT__;
const inc$1 = () => code$1++;
const I18nWarnCodes = {
    FALLBACK_TO_ROOT: code$1,
    NOT_SUPPORTED_PRESERVE: inc$1(),
    NOT_SUPPORTED_FORMATTER: inc$1(),
    NOT_SUPPORTED_PRESERVE_DIRECTIVE: inc$1(),
    NOT_SUPPORTED_GET_CHOICE_INDEX: inc$1(),
    COMPONENT_NAME_LEGACY_COMPATIBLE: inc$1(),
    NOT_FOUND_PARENT_SCOPE: inc$1(),
    NOT_SUPPORT_MULTI_I18N_INSTANCE: inc$1() // 14
};
const warnMessages = {
    [I18nWarnCodes.FALLBACK_TO_ROOT]: `Fall back to {type} '{key}' with root locale.`,
    [I18nWarnCodes.NOT_SUPPORTED_PRESERVE]: `Not supported 'preserve'.`,
    [I18nWarnCodes.NOT_SUPPORTED_FORMATTER]: `Not supported 'formatter'.`,
    [I18nWarnCodes.NOT_SUPPORTED_PRESERVE_DIRECTIVE]: `Not supported 'preserveDirectiveContent'.`,
    [I18nWarnCodes.NOT_SUPPORTED_GET_CHOICE_INDEX]: `Not supported 'getChoiceIndex'.`,
    [I18nWarnCodes.COMPONENT_NAME_LEGACY_COMPATIBLE]: `Component name legacy compatible: '{name}' -> 'i18n'`,
    [I18nWarnCodes.NOT_FOUND_PARENT_SCOPE]: `Not found parent scope. use the global scope.`,
    [I18nWarnCodes.NOT_SUPPORT_MULTI_I18N_INSTANCE]: `Not support multi i18n instance.`
};
function getWarnMessage(code, ...args) {
    return format(warnMessages[code], ...args);
}

let code = CompileErrorCodes.__EXTEND_POINT__;
const inc = () => code++;
const I18nErrorCodes = {
    // composer module errors
    UNEXPECTED_RETURN_TYPE: code,
    // legacy module errors
    INVALID_ARGUMENT: inc(),
    // i18n module errors
    MUST_BE_CALL_SETUP_TOP: inc(),
    NOT_INSLALLED: inc(),
    NOT_AVAILABLE_IN_LEGACY_MODE: inc(),
    // directive module errors
    REQUIRED_VALUE: inc(),
    INVALID_VALUE: inc(),
    // vue-devtools errors
    CANNOT_SETUP_VUE_DEVTOOLS_PLUGIN: inc(),
    NOT_INSLALLED_WITH_PROVIDE: inc(),
    // unexpected error
    UNEXPECTED_ERROR: inc(),
    // not compatible legacy vue-i18n constructor
    NOT_COMPATIBLE_LEGACY_VUE_I18N: inc(),
    // bridge support vue 2.x only
    BRIDGE_SUPPORT_VUE_2_ONLY: inc(),
    // for enhancement
    __EXTEND_POINT__: inc() // 27
};
function createI18nError(code, ...args) {
    return createCompileError(code, null, { messages: errorMessages, args } );
}
const errorMessages = {
    [I18nErrorCodes.UNEXPECTED_RETURN_TYPE]: 'Unexpected return type in composer',
    [I18nErrorCodes.INVALID_ARGUMENT]: 'Invalid argument',
    [I18nErrorCodes.MUST_BE_CALL_SETUP_TOP]: 'Must be called at the top of a `setup` function',
    [I18nErrorCodes.NOT_INSLALLED]: 'Need to install with `app.use` function',
    [I18nErrorCodes.UNEXPECTED_ERROR]: 'Unexpected error',
    [I18nErrorCodes.NOT_AVAILABLE_IN_LEGACY_MODE]: 'Not available in legacy mode',
    [I18nErrorCodes.REQUIRED_VALUE]: `Required in value: {0}`,
    [I18nErrorCodes.INVALID_VALUE]: `Invalid value`,
    [I18nErrorCodes.CANNOT_SETUP_VUE_DEVTOOLS_PLUGIN]: `Cannot setup vue-devtools plugin`,
    [I18nErrorCodes.NOT_INSLALLED_WITH_PROVIDE]: 'Need to install with `provide` function',
    [I18nErrorCodes.NOT_COMPATIBLE_LEGACY_VUE_I18N]: 'Not compatible legacy VueI18n.',
    [I18nErrorCodes.BRIDGE_SUPPORT_VUE_2_ONLY]: 'vue-i18n-bridge support Vue 2.x only'
};

const SetPluralRulesSymbol = makeSymbol('__setPluralRules');
const LegacyInstanceSymbol = /* #__PURE__*/ makeSymbol('__legacyVueI18n');

/* eslint-disable @typescript-eslint/no-explicit-any */
// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
function isLegacyVueI18n(VueI18n) {
    if (VueI18n == null || VueI18n.version == null) {
        return false;
    }
    return (Number(VueI18n.version.split('.')[0]) || -1) >= 8;
}
/**
 * Transform flat json in obj to normal json in obj
 */
function handleFlatJson(obj) {
    // check obj
    if (!isObject(obj)) {
        return obj;
    }
    for (const key in obj) {
        // check key
        if (!hasOwn(obj, key)) {
            continue;
        }
        // handle for normal json
        if (!key.includes('.')) {
            // recursive process value if value is also a object
            if (isObject(obj[key])) {
                handleFlatJson(obj[key]);
            }
        }
        // handle for flat json, transform to normal json
        else {
            // go to the last object
            const subKeys = key.split('.');
            const lastIndex = subKeys.length - 1;
            let currentObj = obj;
            for (let i = 0; i < lastIndex; i++) {
                if (!(subKeys[i] in currentObj)) {
                    currentObj[subKeys[i]] = {};
                }
                currentObj = currentObj[subKeys[i]];
            }
            // update last object value, delete old property
            currentObj[subKeys[lastIndex]] = obj[key];
            delete obj[key];
            // recursive process value if value is also a object
            if (isObject(currentObj[subKeys[lastIndex]])) {
                handleFlatJson(currentObj[subKeys[lastIndex]]);
            }
        }
    }
    return obj;
}
function getLocaleMessages(locale, options) {
    const { messages, __i18n, messageResolver, flatJson } = options;
    // prettier-ignore
    const ret = isPlainObject(messages)
        ? messages
        : isArray(__i18n)
            ? {}
            : { [locale]: {} };
    // merge locale messages of i18n custom block
    if (isArray(__i18n)) {
        __i18n.forEach(({ locale, resource }) => {
            if (locale) {
                ret[locale] = ret[locale] || {};
                deepCopy(resource, ret[locale]);
            }
            else {
                deepCopy(resource, ret);
            }
        });
    }
    // handle messages for flat json
    if (messageResolver == null && flatJson) {
        for (const key in ret) {
            if (hasOwn(ret, key)) {
                handleFlatJson(ret[key]);
            }
        }
    }
    return ret;
}
const isNotObjectOrIsArray = (val) => !isObject(val) || isArray(val);
// eslint-disable-next-line @typescript-eslint/no-explicit-any, @typescript-eslint/explicit-module-boundary-types
function deepCopy(src, des) {
    // src and des should both be objects, and non of then can be a array
    if (isNotObjectOrIsArray(src) || isNotObjectOrIsArray(des)) {
        throw createI18nError(I18nErrorCodes.INVALID_VALUE);
    }
    for (const key in src) {
        if (hasOwn(src, key)) {
            if (isNotObjectOrIsArray(src[key]) || isNotObjectOrIsArray(des[key])) {
                // replace with src[key] when:
                // src[key] or des[key] is not a object, or
                // src[key] or des[key] is a array
                des[key] = src[key];
            }
            else {
                // src[key] and des[key] are both object, merge them
                deepCopy(src[key], des[key]);
            }
        }
    }
}
/* eslint-enable @typescript-eslint/no-explicit-any */

/* eslint-disable @typescript-eslint/no-explicit-any */
const DEVTOOLS_META = '__INTLIFY_META__';
let composerID = 0;
function defineCoreMissingHandler(missing) {
    return ((ctx, locale, key, type) => {
        return missing(locale, key, getCurrentInstance() || undefined, type);
    });
}
// for Intlify DevTools
const getMetaInfo =  () => {
    const instance = getCurrentInstance();
    return instance && instance.type[DEVTOOLS_META] // eslint-disable-line @typescript-eslint/no-explicit-any
        ? { [DEVTOOLS_META]: instance.type[DEVTOOLS_META] } // eslint-disable-line @typescript-eslint/no-explicit-any
        : null;
};
/**
 * Create composer interface factory
 *
 * @internal
 */
// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
function createComposer(options = {}, VueI18nLegacy) {
    const { __root } = options;
    const _isGlobal = __root === undefined;
    let _inheritLocale = isBoolean(options.inheritLocale)
        ? options.inheritLocale
        : true;
    const _locale = ref(
    // prettier-ignore
    __root && _inheritLocale
        ? __root.locale.value
        : isString(options.locale)
            ? options.locale
            : DEFAULT_LOCALE);
    const _fallbackLocale = ref(
    // prettier-ignore
    __root && _inheritLocale
        ? __root.fallbackLocale.value
        : isString(options.fallbackLocale) ||
            isArray(options.fallbackLocale) ||
            isPlainObject(options.fallbackLocale) ||
            options.fallbackLocale === false
            ? options.fallbackLocale
            : _locale.value);
    const _messages = ref(getLocaleMessages(_locale.value, options));
    // prettier-ignore
    const _datetimeFormats = ref(isPlainObject(options.datetimeFormats)
            ? options.datetimeFormats
            : { [_locale.value]: {} })
        ;
    // prettier-ignore
    const _numberFormats = ref(isPlainObject(options.numberFormats)
            ? options.numberFormats
            : { [_locale.value]: {} })
        ;
    // warning suppress options
    // prettier-ignore
    let _missingWarn = __root
        ? __root.missingWarn
        : isBoolean(options.missingWarn) || isRegExp(options.missingWarn)
            ? options.missingWarn
            : true;
    // prettier-ignore
    let _fallbackWarn = __root
        ? __root.fallbackWarn
        : isBoolean(options.fallbackWarn) || isRegExp(options.fallbackWarn)
            ? options.fallbackWarn
            : true;
    // prettier-ignore
    let _fallbackRoot = __root
        ? __root.fallbackRoot
        : isBoolean(options.fallbackRoot)
            ? options.fallbackRoot
            : true;
    // configure fall back to root
    let _fallbackFormat = !!options.fallbackFormat;
    // runtime missing
    let _missing = isFunction(options.missing) ? options.missing : null;
    let _runtimeMissing = isFunction(options.missing)
        ? defineCoreMissingHandler(options.missing)
        : null;
    // postTranslation handler
    let _postTranslation = isFunction(options.postTranslation)
        ? options.postTranslation
        : null;
    let _warnHtmlMessage = isBoolean(options.warnHtmlMessage)
        ? options.warnHtmlMessage
        : true;
    let _escapeParameter = !!options.escapeParameter;
    // custom linked modifiers
    // prettier-ignore
    const _modifiers = __root
        ? __root.modifiers
        : isPlainObject(options.modifiers)
            ? options.modifiers
            : {};
    // pluralRules
    let _pluralRules = options.pluralRules || (__root && __root.pluralRules);
    // for bridge
    let __legacy;
    {
        if (!isLegacyVueI18n(VueI18nLegacy)) {
            createI18nError(I18nErrorCodes.NOT_COMPATIBLE_LEGACY_VUE_I18N);
        }
        const legacyOptions = {
            locale: _locale.value,
            fallbackLocale: _fallbackLocale.value,
            messages: _messages.value,
            dateTimeFormats: _datetimeFormats.value,
            numberFormats: _numberFormats.value,
            modifiers: _modifiers,
            missing: _missing,
            fallbackRoot: _fallbackRoot,
            postTranslation: _postTranslation,
            pluralizationRules: _pluralRules,
            escapeParameterHtml: _escapeParameter,
            sync: _inheritLocale,
            silentFallbackWarn: isBoolean(_fallbackWarn)
                ? !_fallbackWarn
                : _fallbackWarn,
            silentTranslationWarn: isBoolean(_missingWarn)
                ? !_missingWarn
                : _missingWarn,
            formatFallbackMessages: isBoolean(_fallbackFormat)
                ? !_fallbackFormat
                : _fallbackFormat,
            warnHtmlInMessage: isBoolean(_warnHtmlMessage)
                ? _warnHtmlMessage
                    ? 'warn'
                    : 'off'
                : 'off'
        };
        __legacy = new VueI18nLegacy(legacyOptions);
    }
    // runtime context
    // eslint-disable-next-line prefer-const
    let _context;
    function getCoreContext() {
        const ctxOptions = {
            version: VERSION,
            locale: _locale.value,
            fallbackLocale: _fallbackLocale.value,
            messages: _messages.value,
            modifiers: _modifiers,
            pluralRules: _pluralRules,
            missing: _runtimeMissing === null ? undefined : _runtimeMissing,
            missingWarn: _missingWarn,
            fallbackWarn: _fallbackWarn,
            fallbackFormat: _fallbackFormat,
            unresolving: true,
            postTranslation: _postTranslation === null ? undefined : _postTranslation,
            warnHtmlMessage: _warnHtmlMessage,
            escapeParameter: _escapeParameter,
            messageResolver: options.messageResolver,
            __meta: { framework: 'vue' }
        };
        {
            ctxOptions.datetimeFormats = _datetimeFormats.value;
            ctxOptions.numberFormats = _numberFormats.value;
            ctxOptions.__datetimeFormatters = isPlainObject(_context)
                ? _context.__datetimeFormatters
                : undefined;
            ctxOptions.__numberFormatters = isPlainObject(_context)
                ? _context.__numberFormatters
                : undefined;
        }
        return createCoreContext(ctxOptions);
    }
    _context = getCoreContext();
    updateFallbackLocale(_context, _locale.value, _fallbackLocale.value);
    // track reactivity
    function trackReactivityValues() {
        return [
                _locale.value,
                _fallbackLocale.value,
                _messages.value,
                _datetimeFormats.value,
                _numberFormats.value
            ]
            ;
    }
    // locale
    const locale = computed({
        get: () => _locale.value,
        set: val => {
            _locale.value = val;
            {
                if (__legacy) {
                    __legacy.locale = val;
                }
            }
            _context.locale = _locale.value;
        }
    });
    // fallbackLocale
    const fallbackLocale = computed({
        get: () => _fallbackLocale.value,
        set: val => {
            _fallbackLocale.value = val;
            {
                if (__legacy) {
                    __legacy.fallbackLocale = val;
                }
            }
            _context.fallbackLocale = _fallbackLocale.value;
            updateFallbackLocale(_context, _locale.value, val);
        }
    });
    // messages
    const messages = computed(() => _messages.value);
    // datetimeFormats
    const datetimeFormats = /* #__PURE__*/ computed(() => _datetimeFormats.value);
    // numberFormats
    const numberFormats = /* #__PURE__*/ computed(() => _numberFormats.value);
    // getPostTranslationHandler
    function getPostTranslationHandler() {
        return isFunction(_postTranslation) ? _postTranslation : null;
    }
    // setPostTranslationHandler
    function setPostTranslationHandler(handler) {
        _postTranslation = handler;
        _context.postTranslation = handler;
    }
    // getMissingHandler
    function getMissingHandler() {
        return _missing;
    }
    // setMissingHandler
    function setMissingHandler(handler) {
        if (handler !== null) {
            _runtimeMissing = defineCoreMissingHandler(handler);
        }
        _missing = handler;
        _context.missing = _runtimeMissing;
    }
    function isResolvedTranslateMessage(type, arg // eslint-disable-line @typescript-eslint/no-explicit-any
    ) {
        return type !== 'translate' || !arg.resolvedMessage;
    }
    function wrapWithDeps(fn, argumentParser, warnType, fallbackSuccess, fallbackFail, successCondition) {
        trackReactivityValues(); // track reactive dependency
        // NOTE: experimental !!
        let ret;
        {
            try {
                setAdditionalMeta(getMetaInfo());
                ret = fn(_context);
            }
            finally {
                setAdditionalMeta(null);
            }
        }
        if (isNumber(ret) && ret === NOT_REOSLVED) {
            const [key, arg2] = argumentParser();
            if (__root &&
                isString(key) &&
                isResolvedTranslateMessage(warnType, arg2)) {
                if (_fallbackRoot &&
                    (isTranslateFallbackWarn(_fallbackWarn, key) ||
                        isTranslateMissingWarn(_missingWarn, key))) {
                    warn(getWarnMessage(I18nWarnCodes.FALLBACK_TO_ROOT, {
                        key,
                        type: warnType
                    }));
                }
            }
            return __root && _fallbackRoot
                ? fallbackSuccess(__root)
                : fallbackFail(key);
        }
        else if (successCondition(ret)) {
            return ret;
        }
        else {
            /* istanbul ignore next */
            throw createI18nError(I18nErrorCodes.UNEXPECTED_RETURN_TYPE);
        }
    }
    // t
    function t(...args) {
        return wrapWithDeps(context => Reflect.apply(translate, null, [context, ...args]), () => parseTranslateArgs(...args), 'translate', root => Reflect.apply(root.t, root, [...args]), key => key, val => isString(val));
    }
    // rt
    function rt(...args) {
        const [arg1, arg2, arg3] = args;
        if (arg3 && !isObject(arg3)) {
            throw createI18nError(I18nErrorCodes.INVALID_ARGUMENT);
        }
        return t(...[arg1, arg2, assign({ resolvedMessage: true }, arg3 || {})]);
    }
    // d
    function d(...args) {
        return wrapWithDeps(context => Reflect.apply(datetime, null, [context, ...args]), () => parseDateTimeArgs(...args), 'datetime format', root => Reflect.apply(root.d, root, [...args]), () => MISSING_RESOLVE_VALUE, val => isString(val));
    }
    // n
    function n(...args) {
        return wrapWithDeps(context => Reflect.apply(number, null, [context, ...args]), () => parseNumberArgs(...args), 'number format', root => Reflect.apply(root.n, root, [...args]), () => MISSING_RESOLVE_VALUE, val => isString(val));
    }
    function setPluralRules(rules) {
        _pluralRules = rules;
        _context.pluralRules = _pluralRules;
    }
    // te
    function te(key, locale) {
        const targetLocale = isString(locale) ? locale : _locale.value;
        const message = getLocaleMessage(targetLocale);
        return _context.messageResolver(message, key) !== null;
    }
    function resolveMessages(key) {
        let messages = null;
        const locales = fallbackWithLocaleChain(_context, _fallbackLocale.value, _locale.value);
        for (let i = 0; i < locales.length; i++) {
            const targetLocaleMessages = _messages.value[locales[i]] || {};
            const messageValue = _context.messageResolver(targetLocaleMessages, key);
            if (messageValue != null) {
                messages = messageValue;
                break;
            }
        }
        return messages;
    }
    // tm
    function tm(key) {
        const messages = resolveMessages(key);
        // prettier-ignore
        return messages != null
            ? messages
            : __root
                ? __root.tm(key) || {}
                : {};
    }
    // getLocaleMessage
    function getLocaleMessage(locale) {
        return (_messages.value[locale] || {});
    }
    // setLocaleMessage
    function setLocaleMessage(locale, message) {
        _messages.value[locale] = message;
        {
            __legacy && __legacy.setLocaleMessage(locale, message);
        }
        _context.messages = _messages.value;
    }
    // mergeLocaleMessage
    function mergeLocaleMessage(locale, message) {
        _messages.value[locale] = _messages.value[locale] || {};
        {
            __legacy && __legacy.mergeLocaleMessage(locale, message);
        }
        deepCopy(message, _messages.value[locale]);
        _context.messages = _messages.value;
    }
    // getDateTimeFormat
    function getDateTimeFormat(locale) {
        return _datetimeFormats.value[locale] || {};
    }
    // setDateTimeFormat
    function setDateTimeFormat(locale, format) {
        _datetimeFormats.value[locale] = format;
        {
            __legacy && __legacy.setDateTimeFormat(locale, format);
        }
        _context.datetimeFormats = _datetimeFormats.value;
        clearDateTimeFormat(_context, locale, format);
    }
    // mergeDateTimeFormat
    function mergeDateTimeFormat(locale, format) {
        _datetimeFormats.value[locale] = assign(_datetimeFormats.value[locale] || {}, format);
        {
            __legacy && __legacy.mergeDateTimeFormat(locale, format);
        }
        _context.datetimeFormats = _datetimeFormats.value;
        clearDateTimeFormat(_context, locale, format);
    }
    // getNumberFormat
    function getNumberFormat(locale) {
        return _numberFormats.value[locale] || {};
    }
    // setNumberFormat
    function setNumberFormat(locale, format) {
        _numberFormats.value[locale] = format;
        {
            __legacy && __legacy.setNumberFormat(locale, format);
        }
        _context.numberFormats = _numberFormats.value;
        clearNumberFormat(_context, locale, format);
    }
    // mergeNumberFormat
    function mergeNumberFormat(locale, format) {
        _numberFormats.value[locale] = assign(_numberFormats.value[locale] || {}, format);
        {
            __legacy && __legacy.mergeNumberFormat(locale, format);
        }
        _context.numberFormats = _numberFormats.value;
        clearNumberFormat(_context, locale, format);
    }
    // for debug
    composerID++;
    // watch root locale & fallbackLocale
    if (__root) {
        watch(__root.locale, (val) => {
            if (_inheritLocale) {
                _locale.value = val;
                {
                    if (__legacy) {
                        __legacy.locale = val;
                    }
                }
                _context.locale = val;
                updateFallbackLocale(_context, _locale.value, _fallbackLocale.value);
            }
        });
        watch(__root.fallbackLocale, (val) => {
            if (_inheritLocale) {
                _fallbackLocale.value = val;
                {
                    if (__legacy) {
                        __legacy.fallbackLocale = val;
                    }
                }
                _context.fallbackLocale = val;
                updateFallbackLocale(_context, _locale.value, _fallbackLocale.value);
            }
        });
    }
    // define basic composition API!
    const composer = {
        id: composerID,
        locale,
        fallbackLocale,
        get inheritLocale() {
            return _inheritLocale;
        },
        set inheritLocale(val) {
            _inheritLocale = val;
            {
                if (__legacy) {
                    __legacy._sync = val;
                }
            }
            if (val && __root) {
                _locale.value = __root.locale.value;
                _fallbackLocale.value = __root.fallbackLocale.value;
                {
                    if (__legacy) {
                        __legacy.locale = __root.locale.value;
                        __legacy.fallbackLocale = __root.fallbackLocale.value;
                    }
                }
                updateFallbackLocale(_context, _locale.value, _fallbackLocale.value);
            }
        },
        get availableLocales() {
            return Object.keys(_messages.value).sort();
        },
        messages,
        get modifiers() {
            return _modifiers;
        },
        get pluralRules() {
            return _pluralRules || {};
        },
        get isGlobal() {
            return _isGlobal;
        },
        get missingWarn() {
            return _missingWarn;
        },
        set missingWarn(val) {
            _missingWarn = val;
            _context.missingWarn = _missingWarn;
        },
        get fallbackWarn() {
            return _fallbackWarn;
        },
        set fallbackWarn(val) {
            _fallbackWarn = val;
            _context.fallbackWarn = _fallbackWarn;
        },
        get fallbackRoot() {
            return _fallbackRoot;
        },
        set fallbackRoot(val) {
            _fallbackRoot = val;
        },
        get fallbackFormat() {
            return _fallbackFormat;
        },
        set fallbackFormat(val) {
            _fallbackFormat = val;
            _context.fallbackFormat = _fallbackFormat;
        },
        get warnHtmlMessage() {
            return _warnHtmlMessage;
        },
        set warnHtmlMessage(val) {
            _warnHtmlMessage = val;
            _context.warnHtmlMessage = val;
        },
        get escapeParameter() {
            return _escapeParameter;
        },
        set escapeParameter(val) {
            _escapeParameter = val;
            _context.escapeParameter = val;
        },
        t,
        getLocaleMessage,
        setLocaleMessage,
        mergeLocaleMessage,
        getPostTranslationHandler,
        setPostTranslationHandler,
        getMissingHandler,
        setMissingHandler,
        [SetPluralRulesSymbol]: setPluralRules
    };
    {
        composer.datetimeFormats = datetimeFormats;
        composer.numberFormats = numberFormats;
        composer.rt = rt;
        composer.te = te;
        composer.tm = tm;
        composer.d = d;
        composer.n = n;
        composer.getDateTimeFormat = getDateTimeFormat;
        composer.setDateTimeFormat = setDateTimeFormat;
        composer.mergeDateTimeFormat = mergeDateTimeFormat;
        composer.getNumberFormat = getNumberFormat;
        composer.setNumberFormat = setNumberFormat;
        composer.mergeNumberFormat = mergeNumberFormat;
    }
    {
        composer[LegacyInstanceSymbol] = __legacy;
    }
    return composer;
}
/* eslint-enable @typescript-eslint/no-explicit-any */

/**
 * Port from vue-i18n@v8.x
 * This mixin is used when we use vue-i18n-bridge
 */
function defineMixin(i18n, VueI18n // eslint-disable-line @typescript-eslint/no-explicit-any, @typescript-eslint/explicit-module-boundary-types
) {
    return {
        beforeCreate() {
            const options = this.$options; // eslint-disable-line @typescript-eslint/no-explicit-any
            if (options.__VUE18N__INSTANCE__) {
                return;
            }
            options.i18n = options.i18n || (options.__i18n ? {} : null);
            this._i18nBridgeRoot = i18n;
            if (i18n.mode === 'composition') {
                this._i18n = i18n;
                return;
            }
            if (options.i18n) {
                if (options.i18n instanceof VueI18n) {
                    // init locale messages via custom blocks
                    if (options.__i18n) {
                        try {
                            const localeMessages = options.i18n && options.i18n.messages
                                ? options.i18n.messages
                                : {};
                            options.__i18n.forEach(resource => deepCopy(localeMessages, JSON.parse(resource)));
                            Object.keys(localeMessages).forEach((locale) => {
                                options.i18n.mergeLocaleMessage(locale, localeMessages[locale]);
                            });
                        }
                        catch (e) {
                            {
                                console.error(`Cannot parse locale messages via custom blocks.`, e);
                            }
                        }
                    }
                    this._i18n = options.i18n;
                    this._i18nWatcher = this._i18n.watchI18nData();
                }
                else if (isPlainObject(options.i18n)) {
                    const rootI18n = this.$root &&
                        this.$root.$i18n &&
                        this.$root.$i18n instanceof VueI18n
                        ? this.$root.$i18n
                        : null;
                    // component local i18n
                    if (rootI18n) {
                        options.i18n.root = this.$root;
                        options.i18n.formatter = rootI18n.formatter;
                        options.i18n.fallbackLocale = rootI18n.fallbackLocale;
                        options.i18n.formatFallbackMessages =
                            rootI18n.formatFallbackMessages;
                        options.i18n.silentTranslationWarn = rootI18n.silentTranslationWarn;
                        options.i18n.silentFallbackWarn = rootI18n.silentFallbackWarn;
                        options.i18n.pluralizationRules = rootI18n.pluralizationRules;
                        options.i18n.preserveDirectiveContent =
                            rootI18n.preserveDirectiveContent;
                    }
                    // init locale messages via custom blocks
                    if (options.__i18n) {
                        try {
                            const localeMessages = options.i18n && options.i18n.messages
                                ? options.i18n.messages
                                : {};
                            options.__i18n.forEach(resource => deepCopy(localeMessages, JSON.parse(resource)));
                            options.i18n.messages = localeMessages;
                        }
                        catch (e) {
                            {
                                warn(`Cannot parse locale messages via custom blocks.`, e);
                            }
                        }
                    }
                    const { sharedMessages } = options.i18n;
                    if (sharedMessages && isPlainObject(sharedMessages)) {
                        deepCopy(options.i18n.messages, sharedMessages);
                    }
                    this._i18n = new VueI18n(options.i18n);
                    this._i18nWatcher = this._i18n.watchI18nData();
                    if (options.i18n.sync === undefined || !!options.i18n.sync) {
                        this._localeWatcher = this.$i18n.watchLocale();
                    }
                    if (rootI18n) {
                        rootI18n.onComponentInstanceCreated(this._i18n);
                    }
                }
                else {
                    {
                        warn(`Cannot be interpreted 'i18n' option.`);
                    }
                }
            }
            else if (this.$root &&
                this.$root.$i18n &&
                this.$root.$i18n instanceof VueI18n) {
                // root i18n
                this._i18n = this.$root.$i18n;
            }
            else if (options.parent &&
                options.parent.$i18n &&
                options.parent.$i18n instanceof VueI18n) {
                // parent i18n
                this._i18n = options.parent.$i18n;
            }
        },
        beforeMount() {
            const options = this.$options; // eslint-disable-line @typescript-eslint/no-explicit-any
            if (options.__VUE18N__INSTANCE__) {
                return;
            }
            options.i18n = options.i18n || (options.__i18n ? {} : null);
            if (options.i18n) {
                if (options.i18n instanceof VueI18n) {
                    // init locale messages via custom blocks
                    this._i18n.subscribeDataChanging(this);
                    this._subscribing = true;
                }
                else if (isPlainObject(options.i18n)) {
                    this._i18n.subscribeDataChanging(this);
                    this._subscribing = true;
                }
                else {
                    {
                        warn(`Cannot be interpreted 'i18n' option.`);
                    }
                }
            }
            else if (this.$root &&
                this.$root.$i18n &&
                this.$root.$i18n instanceof VueI18n) {
                this._i18n.subscribeDataChanging(this);
                this._subscribing = true;
            }
            else if (options.parent &&
                options.parent.$i18n &&
                options.parent.$i18n instanceof VueI18n) {
                this._i18n.subscribeDataChanging(this);
                this._subscribing = true;
            }
        },
        beforeDestroy() {
            const options = this.$options; // eslint-disable-line @typescript-eslint/no-explicit-any
            if (options.__VUE18N__INSTANCE__) {
                return;
            }
            if (this._i18nBridgeRoot) {
                delete this._i18nBridgeRoot;
                return;
            }
            if (i18n.mode === 'composition') {
                delete this._i18n;
                return;
            }
            if (!this._i18n) {
                return;
            }
            const self = this; // eslint-disable-line @typescript-eslint/no-explicit-any
            this.$nextTick(() => {
                if (self._subscribing) {
                    self._i18n.unsubscribeDataChanging(self);
                    delete self._subscribing;
                }
                if (self._i18nWatcher) {
                    self._i18nWatcher();
                    self._i18n.destroyVM();
                    delete self._i18nWatcher;
                }
                if (self._localeWatcher) {
                    self._localeWatcher();
                    delete self._localeWatcher;
                }
            });
        }
    };
}

// for bridge
let _legacyVueI18n = null; // eslint-disable-line @typescript-eslint/no-explicit-any
let _legacyI18n = null; // eslint-disable-line @typescript-eslint/no-explicit-any
/**
 * Injection key for {@link useI18n}
 *
 * @remarks
 * The global injection key for I18n instances with `useI18n`. this injection key is used in Web Components.
 * Specify the i18n instance created by {@link createI18n} together with `provide` function.
 *
 * @VueI18nGeneral
 */
const I18nInjectionKey = 
/* #__PURE__*/ makeSymbol('global-vue-i18n');
// eslint-disable-next-line @typescript-eslint/no-explicit-any, @typescript-eslint/explicit-module-boundary-types
function createI18n(options = {}, VueI18nLegacy) {
    if (_legacyI18n) {
        warn(getWarnMessage(I18nWarnCodes.NOT_SUPPORT_MULTI_I18N_INSTANCE));
        return _legacyI18n;
    }
    {
        _legacyVueI18n = VueI18nLegacy;
    }
    // prettier-ignore
    const __legacyMode = isBoolean(options.legacy)
            ? options.legacy
            : true;
     !!options.globalInjection;
    const __instances = new Map();
    const __global = createGlobal(options, __legacyMode, VueI18nLegacy);
    function __getInstance(component) {
        return __instances.get(component) || null;
    }
    function __setInstance(component, instance) {
        __instances.set(component, instance);
    }
    function __deleteInstance(component) {
        __instances.delete(component);
    }
    {
        // extend legacy VueI18n instance
        const i18n = __global[LegacyInstanceSymbol]; // eslint-disable-line @typescript-eslint/no-explicit-any
        Object.defineProperty(i18n, 'global', {
            get() {
                return __global;
            }
        });
        Object.defineProperty(i18n, 'mode', {
            get() {
                return __legacyMode ? 'legacy' : 'composition';
            }
        });
        Object.defineProperty(i18n, '__instances', {
            get() {
                return __instances;
            }
        });
        Object.defineProperty(i18n, 'install', {
            // eslint-disable-next-line @typescript-eslint/no-explicit-any
            value: (Vue) => {
                const version = (Vue && Vue.version && Number(Vue.version.split('.')[0])) || -1;
                if (version !== 2) {
                    throw createI18nError(I18nErrorCodes.BRIDGE_SUPPORT_VUE_2_ONLY);
                }
                Vue.mixin(defineMixin(i18n, _legacyVueI18n));
            }
        });
        const methodMap = {
            __getInstance,
            __setInstance,
            __deleteInstance
        };
        Object.keys(methodMap).forEach(key => Object.defineProperty(i18n, key, { value: methodMap[key] }) // eslint-disable-line @typescript-eslint/no-explicit-any
        );
        _legacyI18n = i18n;
        return i18n;
    }
}
// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
function useI18n(options = {}) {
    const instance = getCurrentInstance();
    if (instance == null) {
        throw createI18nError(I18nErrorCodes.MUST_BE_CALL_SETUP_TOP);
    }
    {
        if (_legacyVueI18n == null || _legacyI18n == null) {
            throw createI18nError(I18nErrorCodes.NOT_INSLALLED);
        }
    }
    const i18n = getI18nInstance(instance);
    const global = getGlobalComposer(i18n);
    const componentOptions = getComponentOptions(instance);
    const scope = getScope(options, componentOptions);
    if (scope === 'global') {
        adjustI18nResources(global, options, componentOptions);
        return global;
    }
    if (scope === 'parent') {
        let composer = getComposer(i18n, instance);
        if (composer == null) {
            {
                warn(getWarnMessage(I18nWarnCodes.NOT_FOUND_PARENT_SCOPE));
            }
            composer = global;
        }
        return composer;
    }
    // scope 'local' case
    if (i18n.mode === 'legacy') {
        throw createI18nError(I18nErrorCodes.NOT_AVAILABLE_IN_LEGACY_MODE);
    }
    const i18nInternal = i18n;
    let composer = i18nInternal.__getInstance(instance);
    if (composer == null) {
        const composerOptions = assign({}, options);
        if ('__i18n' in componentOptions) {
            composerOptions.__i18n = componentOptions.__i18n;
        }
        if (global) {
            composerOptions.__root = global;
        }
        composer = createComposer(composerOptions, _legacyVueI18n);
        setupLifeCycle(i18nInternal, instance, composer);
        i18nInternal.__setInstance(instance, composer);
    }
    return composer;
}
function createGlobal(options, legacyMode, VueI18nLegacy // eslint-disable-line @typescript-eslint/no-explicit-any
) {
    {
        if (!isLegacyVueI18n(VueI18nLegacy)) {
            throw createI18nError(I18nErrorCodes.NOT_COMPATIBLE_LEGACY_VUE_I18N);
        }
        return createComposer(options, VueI18nLegacy);
    }
}
function getI18nInstance(instance) {
    {
        const vm = instance.proxy;
        /* istanbul ignore if */
        if (vm == null) {
            throw createI18nError(I18nErrorCodes.UNEXPECTED_ERROR);
        }
        const i18n = vm._i18nBridgeRoot; // eslint-disable-line @typescript-eslint/no-explicit-any
        /* istanbul ignore if */
        if (!i18n) {
            throw createI18nError(I18nErrorCodes.NOT_INSLALLED);
        }
        return i18n;
    }
}
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function getComponentOptions(instance) {
    return instance.proxy.$options;
}
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function getScope(options, componentOptions) {
    // prettier-ignore
    return isEmptyObject(options)
        ? ('__i18n' in componentOptions)
            ? 'local'
            : 'global'
        : !options.useScope
            ? 'local'
            : options.useScope;
}
function getGlobalComposer(i18n) {
    // prettier-ignore
    return i18n.global;
}
function adjustI18nResources(global, options, componentOptions // eslint-disable-line @typescript-eslint/no-explicit-any
) {
    let messages = isObject(options.messages) ? options.messages : {};
    if ('__i18nGlobal' in componentOptions) {
        messages = getLocaleMessages(global.locale.value, {
            messages,
            __i18n: componentOptions.__i18nGlobal
        });
    }
    // merge locale messages
    const locales = Object.keys(messages);
    if (locales.length) {
        locales.forEach(locale => {
            global.mergeLocaleMessage(locale, messages[locale]);
        });
    }
    {
        // merge datetime formats
        if (isObject(options.datetimeFormats)) {
            const locales = Object.keys(options.datetimeFormats);
            if (locales.length) {
                locales.forEach(locale => {
                    global.mergeDateTimeFormat(locale, options.datetimeFormats[locale]);
                });
            }
        }
        // merge number formats
        if (isObject(options.numberFormats)) {
            const locales = Object.keys(options.numberFormats);
            if (locales.length) {
                locales.forEach(locale => {
                    global.mergeNumberFormat(locale, options.numberFormats[locale]);
                });
            }
        }
    }
}
function getComposer(i18n, target) {
    let composer = null;
    const root = target.root;
    let current = target.parent;
    while (current != null) {
        const i18nInternal = i18n;
        if (i18n.mode === 'composition') {
            composer = i18nInternal.__getInstance(current);
        }
        else {
            {
                const vueI18n = i18nInternal.__getInstance(current);
                if (vueI18n != null) {
                    composer = vueI18n
                        .__composer;
                }
            }
        }
        if (composer != null) {
            break;
        }
        if (root === current) {
            break;
        }
        current = current.parent;
    }
    return composer;
}
function setupLifeCycle(i18n, target, composer) {
    {
        // assign legacy VueI18n instance to Vue2 instance
        // eslint-disable-next-line @typescript-eslint/no-explicit-any
        const vm = target.proxy;
        if (vm == null) {
            throw createI18nError(I18nErrorCodes.UNEXPECTED_ERROR);
        }
        // eslint-disable-next-line @typescript-eslint/no-explicit-any
        const _i18n = composer[LegacyInstanceSymbol];
        if (_i18n === i18n) {
            throw createI18nError(I18nErrorCodes.UNEXPECTED_ERROR);
        }
        vm._i18n = _i18n;
        vm._i18n_bridge = true;
        vm._i18nWatcher = vm._i18n.watchI18nData();
        if (vm._i18n._sync) {
            vm._localeWatcher = vm._i18n.watchLocale();
        }
        let subscribing = false;
        onBeforeMount(() => {
            vm._i18n.subscribeDataChanging(vm);
            subscribing = true;
        }, target);
        onUnmounted(() => {
            if (subscribing) {
                vm._i18n.unsubscribeDataChanging(vm);
                subscribing = false;
            }
            if (vm._i18nWatcher) {
                vm._i18nWatcher();
                vm._i18n.destroyVM();
                delete vm._i18nWatcher;
            }
            if (vm._localeWatcher) {
                vm._localeWatcher();
                delete vm._localeWatcher;
            }
            delete vm._i18n_bridge;
            delete vm._i18n;
        }, target);
    }
}

// register message resolver at vue-i18n
registerMessageResolver(resolveValue);
// register fallback locale at vue-i18n
registerLocaleFallbacker(fallbackWithLocaleChain);
// NOTE: experimental !!
{
    const target = getGlobalThis();
    target.__INTLIFY__ = true;
    setDevToolsHook(target.__INTLIFY_DEVTOOLS_GLOBAL_HOOK__);
}
{
    initDev();
}

export { I18nInjectionKey, VERSION, createI18n, useI18n };