/*!
  * vue-i18n v9.2.0-beta.23
  * (c) 2021 kazuya kawaguchi
  * Released under the MIT License.
  */
import { createVNode, Text, ref, getCurrentInstance, computed, watch, Fragment, h, nextTick, inject, onMounted, onUnmounted, isRef } from 'vue';

/**
 * Original Utilities
 * written by kazuya kawaguchi
 */
const inBrowser = typeof window !== 'undefined';
let mark;
let measure;
{
    const perf = inBrowser && window.performance;
    if (perf &&
        perf.mark &&
        perf.measure &&
        perf.clearMarks &&
        perf.clearMeasures) {
        mark = (tag) => perf.mark(tag);
        measure = (name, startTag, endTag) => {
            perf.measure(name, startTag, endTag);
            perf.clearMarks(startTag);
            perf.clearMarks(endTag);
        };
    }
}
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 RANGE = 2;
function generateCodeFrame(source, start = 0, end = source.length) {
    const lines = source.split(/\r?\n/);
    let count = 0;
    const res = [];
    for (let i = 0; i < lines.length; i++) {
        count += lines[i].length + 1;
        if (count >= start) {
            for (let j = i - RANGE; j <= i + RANGE || end > count; j++) {
                if (j < 0 || j >= lines.length)
                    continue;
                const line = j + 1;
                res.push(`${line}${' '.repeat(3 - String(line).length)}|  ${lines[j]}`);
                const lineLength = lines[j].length;
                if (j === i) {
                    // push underline
                    const pad = start - (count - lineLength) + 1;
                    const length = Math.max(1, end > count ? lineLength - pad : end - start);
                    res.push(`   |  ` + ' '.repeat(pad) + '^'.repeat(length));
                }
                else if (j > i) {
                    if (end > count) {
                        const length = Math.max(Math.min(end - count, lineLength), 1);
                        res.push(`   |  ` + '^'.repeat(length));
                    }
                    count += lineLength + 1;
                }
            }
            break;
        }
    }
    return res.join('\n');
}

/**
 * Event emitter, forked from the below:
 * - original repository url: https://github.com/developit/mitt
 * - code url: https://github.com/developit/mitt/blob/master/src/index.ts
 * - author: Jason Miller (https://github.com/developit)
 * - license: MIT
 */
/**
 * Create a event emitter
 *
 * @returns An event emitter
 */
function createEmitter() {
    const events = new Map();
    const emitter = {
        events,
        on(event, handler) {
            const handlers = events.get(event);
            const added = handlers && handlers.push(handler);
            if (!added) {
                events.set(event, [handler]);
            }
        },
        off(event, handler) {
            const handlers = events.get(event);
            if (handlers) {
                handlers.splice(handlers.indexOf(handler) >>> 0, 1);
            }
        },
        emit(event, payload) {
            (events.get(event) || [])
                .slice()
                .map(handler => handler(payload));
            (events.get('*') || [])
                .slice()
                .map(handler => handler(event, payload));
        }
    };
    return emitter;
}

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;
}
/** @internal */
function defaultOnError(error) {
    throw error;
}

function createPosition(line, column, offset) {
    return { line, column, offset };
}
function createLocation(start, end, source) {
    const loc = { start, end };
    if (source != null) {
        loc.source = source;
    }
    return loc;
}

const CHAR_SP = ' ';
const CHAR_CR = '\r';
const CHAR_LF = '\n';
const CHAR_LS = String.fromCharCode(0x2028);
const CHAR_PS = String.fromCharCode(0x2029);
function createScanner(str) {
    const _buf = str;
    let _index = 0;
    let _line = 1;
    let _column = 1;
    let _peekOffset = 0;
    const isCRLF = (index) => _buf[index] === CHAR_CR && _buf[index + 1] === CHAR_LF;
    const isLF = (index) => _buf[index] === CHAR_LF;
    const isPS = (index) => _buf[index] === CHAR_PS;
    const isLS = (index) => _buf[index] === CHAR_LS;
    const isLineEnd = (index) => isCRLF(index) || isLF(index) || isPS(index) || isLS(index);
    const index = () => _index;
    const line = () => _line;
    const column = () => _column;
    const peekOffset = () => _peekOffset;
    const charAt = (offset) => isCRLF(offset) || isPS(offset) || isLS(offset) ? CHAR_LF : _buf[offset];
    const currentChar = () => charAt(_index);
    const currentPeek = () => charAt(_index + _peekOffset);
    function next() {
        _peekOffset = 0;
        if (isLineEnd(_index)) {
            _line++;
            _column = 0;
        }
        if (isCRLF(_index)) {
            _index++;
        }
        _index++;
        _column++;
        return _buf[_index];
    }
    function peek() {
        if (isCRLF(_index + _peekOffset)) {
            _peekOffset++;
        }
        _peekOffset++;
        return _buf[_index + _peekOffset];
    }
    function reset() {
        _index = 0;
        _line = 1;
        _column = 1;
        _peekOffset = 0;
    }
    function resetPeek(offset = 0) {
        _peekOffset = offset;
    }
    function skipToPeek() {
        const target = _index + _peekOffset;
        // eslint-disable-next-line no-unmodified-loop-condition
        while (target !== _index) {
            next();
        }
        _peekOffset = 0;
    }
    return {
        index,
        line,
        column,
        peekOffset,
        charAt,
        currentChar,
        currentPeek,
        next,
        peek,
        reset,
        resetPeek,
        skipToPeek
    };
}

const EOF = undefined;
const LITERAL_DELIMITER = "'";
const ERROR_DOMAIN$1 = 'tokenizer';
function createTokenizer(source, options = {}) {
    const location = options.location !== false;
    const _scnr = createScanner(source);
    const currentOffset = () => _scnr.index();
    const currentPosition = () => createPosition(_scnr.line(), _scnr.column(), _scnr.index());
    const _initLoc = currentPosition();
    const _initOffset = currentOffset();
    const _context = {
        currentType: 14 /* EOF */,
        offset: _initOffset,
        startLoc: _initLoc,
        endLoc: _initLoc,
        lastType: 14 /* EOF */,
        lastOffset: _initOffset,
        lastStartLoc: _initLoc,
        lastEndLoc: _initLoc,
        braceNest: 0,
        inLinked: false,
        text: ''
    };
    const context = () => _context;
    const { onError } = options;
    function emitError(code, pos, offset, ...args) {
        const ctx = context();
        pos.column += offset;
        pos.offset += offset;
        if (onError) {
            const loc = createLocation(ctx.startLoc, pos);
            const err = createCompileError(code, loc, {
                domain: ERROR_DOMAIN$1,
                args
            });
            onError(err);
        }
    }
    function getToken(context, type, value) {
        context.endLoc = currentPosition();
        context.currentType = type;
        const token = { type };
        if (location) {
            token.loc = createLocation(context.startLoc, context.endLoc);
        }
        if (value != null) {
            token.value = value;
        }
        return token;
    }
    const getEndToken = (context) => getToken(context, 14 /* EOF */);
    function eat(scnr, ch) {
        if (scnr.currentChar() === ch) {
            scnr.next();
            return ch;
        }
        else {
            emitError(CompileErrorCodes.EXPECTED_TOKEN, currentPosition(), 0, ch);
            return '';
        }
    }
    function peekSpaces(scnr) {
        let buf = '';
        while (scnr.currentPeek() === CHAR_SP || scnr.currentPeek() === CHAR_LF) {
            buf += scnr.currentPeek();
            scnr.peek();
        }
        return buf;
    }
    function skipSpaces(scnr) {
        const buf = peekSpaces(scnr);
        scnr.skipToPeek();
        return buf;
    }
    function isIdentifierStart(ch) {
        if (ch === EOF) {
            return false;
        }
        const cc = ch.charCodeAt(0);
        return ((cc >= 97 && cc <= 122) || // a-z
            (cc >= 65 && cc <= 90) || // A-Z
            cc === 95 // _
        );
    }
    function isNumberStart(ch) {
        if (ch === EOF) {
            return false;
        }
        const cc = ch.charCodeAt(0);
        return cc >= 48 && cc <= 57; // 0-9
    }
    function isNamedIdentifierStart(scnr, context) {
        const { currentType } = context;
        if (currentType !== 2 /* BraceLeft */) {
            return false;
        }
        peekSpaces(scnr);
        const ret = isIdentifierStart(scnr.currentPeek());
        scnr.resetPeek();
        return ret;
    }
    function isListIdentifierStart(scnr, context) {
        const { currentType } = context;
        if (currentType !== 2 /* BraceLeft */) {
            return false;
        }
        peekSpaces(scnr);
        const ch = scnr.currentPeek() === '-' ? scnr.peek() : scnr.currentPeek();
        const ret = isNumberStart(ch);
        scnr.resetPeek();
        return ret;
    }
    function isLiteralStart(scnr, context) {
        const { currentType } = context;
        if (currentType !== 2 /* BraceLeft */) {
            return false;
        }
        peekSpaces(scnr);
        const ret = scnr.currentPeek() === LITERAL_DELIMITER;
        scnr.resetPeek();
        return ret;
    }
    function isLinkedDotStart(scnr, context) {
        const { currentType } = context;
        if (currentType !== 8 /* LinkedAlias */) {
            return false;
        }
        peekSpaces(scnr);
        const ret = scnr.currentPeek() === "." /* LinkedDot */;
        scnr.resetPeek();
        return ret;
    }
    function isLinkedModifierStart(scnr, context) {
        const { currentType } = context;
        if (currentType !== 9 /* LinkedDot */) {
            return false;
        }
        peekSpaces(scnr);
        const ret = isIdentifierStart(scnr.currentPeek());
        scnr.resetPeek();
        return ret;
    }
    function isLinkedDelimiterStart(scnr, context) {
        const { currentType } = context;
        if (!(currentType === 8 /* LinkedAlias */ ||
            currentType === 12 /* LinkedModifier */)) {
            return false;
        }
        peekSpaces(scnr);
        const ret = scnr.currentPeek() === ":" /* LinkedDelimiter */;
        scnr.resetPeek();
        return ret;
    }
    function isLinkedReferStart(scnr, context) {
        const { currentType } = context;
        if (currentType !== 10 /* LinkedDelimiter */) {
            return false;
        }
        const fn = () => {
            const ch = scnr.currentPeek();
            if (ch === "{" /* BraceLeft */) {
                return isIdentifierStart(scnr.peek());
            }
            else if (ch === "@" /* LinkedAlias */ ||
                ch === "%" /* Modulo */ ||
                ch === "|" /* Pipe */ ||
                ch === ":" /* LinkedDelimiter */ ||
                ch === "." /* LinkedDot */ ||
                ch === CHAR_SP ||
                !ch) {
                return false;
            }
            else if (ch === CHAR_LF) {
                scnr.peek();
                return fn();
            }
            else {
                // other characters
                return isIdentifierStart(ch);
            }
        };
        const ret = fn();
        scnr.resetPeek();
        return ret;
    }
    function isPluralStart(scnr) {
        peekSpaces(scnr);
        const ret = scnr.currentPeek() === "|" /* Pipe */;
        scnr.resetPeek();
        return ret;
    }
    function isTextStart(scnr, reset = true) {
        const fn = (hasSpace = false, prev = '', detectModulo = false) => {
            const ch = scnr.currentPeek();
            if (ch === "{" /* BraceLeft */) {
                return prev === "%" /* Modulo */ ? false : hasSpace;
            }
            else if (ch === "@" /* LinkedAlias */ || !ch) {
                return prev === "%" /* Modulo */ ? true : hasSpace;
            }
            else if (ch === "%" /* Modulo */) {
                scnr.peek();
                return fn(hasSpace, "%" /* Modulo */, true);
            }
            else if (ch === "|" /* Pipe */) {
                return prev === "%" /* Modulo */ || detectModulo
                    ? true
                    : !(prev === CHAR_SP || prev === CHAR_LF);
            }
            else if (ch === CHAR_SP) {
                scnr.peek();
                return fn(true, CHAR_SP, detectModulo);
            }
            else if (ch === CHAR_LF) {
                scnr.peek();
                return fn(true, CHAR_LF, detectModulo);
            }
            else {
                return true;
            }
        };
        const ret = fn();
        reset && scnr.resetPeek();
        return ret;
    }
    function takeChar(scnr, fn) {
        const ch = scnr.currentChar();
        if (ch === EOF) {
            return EOF;
        }
        if (fn(ch)) {
            scnr.next();
            return ch;
        }
        return null;
    }
    function takeIdentifierChar(scnr) {
        const closure = (ch) => {
            const cc = ch.charCodeAt(0);
            return ((cc >= 97 && cc <= 122) || // a-z
                (cc >= 65 && cc <= 90) || // A-Z
                (cc >= 48 && cc <= 57) || // 0-9
                cc === 95 || // _
                cc === 36 // $
            );
        };
        return takeChar(scnr, closure);
    }
    function takeDigit(scnr) {
        const closure = (ch) => {
            const cc = ch.charCodeAt(0);
            return cc >= 48 && cc <= 57; // 0-9
        };
        return takeChar(scnr, closure);
    }
    function takeHexDigit(scnr) {
        const closure = (ch) => {
            const cc = ch.charCodeAt(0);
            return ((cc >= 48 && cc <= 57) || // 0-9
                (cc >= 65 && cc <= 70) || // A-F
                (cc >= 97 && cc <= 102)); // a-f
        };
        return takeChar(scnr, closure);
    }
    function getDigits(scnr) {
        let ch = '';
        let num = '';
        while ((ch = takeDigit(scnr))) {
            num += ch;
        }
        return num;
    }
    function readText(scnr) {
        let buf = '';
        while (true) {
            const ch = scnr.currentChar();
            if (ch === "{" /* BraceLeft */ ||
                ch === "}" /* BraceRight */ ||
                ch === "@" /* LinkedAlias */ ||
                ch === "|" /* Pipe */ ||
                !ch) {
                break;
            }
            else if (ch === "%" /* Modulo */) {
                if (isTextStart(scnr)) {
                    buf += ch;
                    scnr.next();
                }
                else {
                    break;
                }
            }
            else if (ch === CHAR_SP || ch === CHAR_LF) {
                if (isTextStart(scnr)) {
                    buf += ch;
                    scnr.next();
                }
                else if (isPluralStart(scnr)) {
                    break;
                }
                else {
                    buf += ch;
                    scnr.next();
                }
            }
            else {
                buf += ch;
                scnr.next();
            }
        }
        return buf;
    }
    function readNamedIdentifier(scnr) {
        skipSpaces(scnr);
        let ch = '';
        let name = '';
        while ((ch = takeIdentifierChar(scnr))) {
            name += ch;
        }
        if (scnr.currentChar() === EOF) {
            emitError(CompileErrorCodes.UNTERMINATED_CLOSING_BRACE, currentPosition(), 0);
        }
        return name;
    }
    function readListIdentifier(scnr) {
        skipSpaces(scnr);
        let value = '';
        if (scnr.currentChar() === '-') {
            scnr.next();
            value += `-${getDigits(scnr)}`;
        }
        else {
            value += getDigits(scnr);
        }
        if (scnr.currentChar() === EOF) {
            emitError(CompileErrorCodes.UNTERMINATED_CLOSING_BRACE, currentPosition(), 0);
        }
        return value;
    }
    function readLiteral(scnr) {
        skipSpaces(scnr);
        eat(scnr, `\'`);
        let ch = '';
        let literal = '';
        const fn = (x) => x !== LITERAL_DELIMITER && x !== CHAR_LF;
        while ((ch = takeChar(scnr, fn))) {
            if (ch === '\\') {
                literal += readEscapeSequence(scnr);
            }
            else {
                literal += ch;
            }
        }
        const current = scnr.currentChar();
        if (current === CHAR_LF || current === EOF) {
            emitError(CompileErrorCodes.UNTERMINATED_SINGLE_QUOTE_IN_PLACEHOLDER, currentPosition(), 0);
            // TODO: Is it correct really?
            if (current === CHAR_LF) {
                scnr.next();
                eat(scnr, `\'`);
            }
            return literal;
        }
        eat(scnr, `\'`);
        return literal;
    }
    function readEscapeSequence(scnr) {
        const ch = scnr.currentChar();
        switch (ch) {
            case '\\':
            case `\'`:
                scnr.next();
                return `\\${ch}`;
            case 'u':
                return readUnicodeEscapeSequence(scnr, ch, 4);
            case 'U':
                return readUnicodeEscapeSequence(scnr, ch, 6);
            default:
                emitError(CompileErrorCodes.UNKNOWN_ESCAPE_SEQUENCE, currentPosition(), 0, ch);
                return '';
        }
    }
    function readUnicodeEscapeSequence(scnr, unicode, digits) {
        eat(scnr, unicode);
        let sequence = '';
        for (let i = 0; i < digits; i++) {
            const ch = takeHexDigit(scnr);
            if (!ch) {
                emitError(CompileErrorCodes.INVALID_UNICODE_ESCAPE_SEQUENCE, currentPosition(), 0, `\\${unicode}${sequence}${scnr.currentChar()}`);
                break;
            }
            sequence += ch;
        }
        return `\\${unicode}${sequence}`;
    }
    function readInvalidIdentifier(scnr) {
        skipSpaces(scnr);
        let ch = '';
        let identifiers = '';
        const closure = (ch) => ch !== "{" /* BraceLeft */ &&
            ch !== "}" /* BraceRight */ &&
            ch !== CHAR_SP &&
            ch !== CHAR_LF;
        while ((ch = takeChar(scnr, closure))) {
            identifiers += ch;
        }
        return identifiers;
    }
    function readLinkedModifier(scnr) {
        let ch = '';
        let name = '';
        while ((ch = takeIdentifierChar(scnr))) {
            name += ch;
        }
        return name;
    }
    function readLinkedRefer(scnr) {
        const fn = (detect = false, buf) => {
            const ch = scnr.currentChar();
            if (ch === "{" /* BraceLeft */ ||
                ch === "%" /* Modulo */ ||
                ch === "@" /* LinkedAlias */ ||
                ch === "|" /* Pipe */ ||
                !ch) {
                return buf;
            }
            else if (ch === CHAR_SP) {
                return buf;
            }
            else if (ch === CHAR_LF) {
                buf += ch;
                scnr.next();
                return fn(detect, buf);
            }
            else {
                buf += ch;
                scnr.next();
                return fn(true, buf);
            }
        };
        return fn(false, '');
    }
    function readPlural(scnr) {
        skipSpaces(scnr);
        const plural = eat(scnr, "|" /* Pipe */);
        skipSpaces(scnr);
        return plural;
    }
    // TODO: We need refactoring of token parsing ...
    function readTokenInPlaceholder(scnr, context) {
        let token = null;
        const ch = scnr.currentChar();
        switch (ch) {
            case "{" /* BraceLeft */:
                if (context.braceNest >= 1) {
                    emitError(CompileErrorCodes.NOT_ALLOW_NEST_PLACEHOLDER, currentPosition(), 0);
                }
                scnr.next();
                token = getToken(context, 2 /* BraceLeft */, "{" /* BraceLeft */);
                skipSpaces(scnr);
                context.braceNest++;
                return token;
            case "}" /* BraceRight */:
                if (context.braceNest > 0 &&
                    context.currentType === 2 /* BraceLeft */) {
                    emitError(CompileErrorCodes.EMPTY_PLACEHOLDER, currentPosition(), 0);
                }
                scnr.next();
                token = getToken(context, 3 /* BraceRight */, "}" /* BraceRight */);
                context.braceNest--;
                context.braceNest > 0 && skipSpaces(scnr);
                if (context.inLinked && context.braceNest === 0) {
                    context.inLinked = false;
                }
                return token;
            case "@" /* LinkedAlias */:
                if (context.braceNest > 0) {
                    emitError(CompileErrorCodes.UNTERMINATED_CLOSING_BRACE, currentPosition(), 0);
                }
                token = readTokenInLinked(scnr, context) || getEndToken(context);
                context.braceNest = 0;
                return token;
            default:
                let validNamedIdentifier = true;
                let validListIdentifier = true;
                let validLiteral = true;
                if (isPluralStart(scnr)) {
                    if (context.braceNest > 0) {
                        emitError(CompileErrorCodes.UNTERMINATED_CLOSING_BRACE, currentPosition(), 0);
                    }
                    token = getToken(context, 1 /* Pipe */, readPlural(scnr));
                    // reset
                    context.braceNest = 0;
                    context.inLinked = false;
                    return token;
                }
                if (context.braceNest > 0 &&
                    (context.currentType === 5 /* Named */ ||
                        context.currentType === 6 /* List */ ||
                        context.currentType === 7 /* Literal */)) {
                    emitError(CompileErrorCodes.UNTERMINATED_CLOSING_BRACE, currentPosition(), 0);
                    context.braceNest = 0;
                    return readToken(scnr, context);
                }
                if ((validNamedIdentifier = isNamedIdentifierStart(scnr, context))) {
                    token = getToken(context, 5 /* Named */, readNamedIdentifier(scnr));
                    skipSpaces(scnr);
                    return token;
                }
                if ((validListIdentifier = isListIdentifierStart(scnr, context))) {
                    token = getToken(context, 6 /* List */, readListIdentifier(scnr));
                    skipSpaces(scnr);
                    return token;
                }
                if ((validLiteral = isLiteralStart(scnr, context))) {
                    token = getToken(context, 7 /* Literal */, readLiteral(scnr));
                    skipSpaces(scnr);
                    return token;
                }
                if (!validNamedIdentifier && !validListIdentifier && !validLiteral) {
                    // TODO: we should be re-designed invalid cases, when we will extend message syntax near the future ...
                    token = getToken(context, 13 /* InvalidPlace */, readInvalidIdentifier(scnr));
                    emitError(CompileErrorCodes.INVALID_TOKEN_IN_PLACEHOLDER, currentPosition(), 0, token.value);
                    skipSpaces(scnr);
                    return token;
                }
                break;
        }
        return token;
    }
    // TODO: We need refactoring of token parsing ...
    function readTokenInLinked(scnr, context) {
        const { currentType } = context;
        let token = null;
        const ch = scnr.currentChar();
        if ((currentType === 8 /* LinkedAlias */ ||
            currentType === 9 /* LinkedDot */ ||
            currentType === 12 /* LinkedModifier */ ||
            currentType === 10 /* LinkedDelimiter */) &&
            (ch === CHAR_LF || ch === CHAR_SP)) {
            emitError(CompileErrorCodes.INVALID_LINKED_FORMAT, currentPosition(), 0);
        }
        switch (ch) {
            case "@" /* LinkedAlias */:
                scnr.next();
                token = getToken(context, 8 /* LinkedAlias */, "@" /* LinkedAlias */);
                context.inLinked = true;
                return token;
            case "." /* LinkedDot */:
                skipSpaces(scnr);
                scnr.next();
                return getToken(context, 9 /* LinkedDot */, "." /* LinkedDot */);
            case ":" /* LinkedDelimiter */:
                skipSpaces(scnr);
                scnr.next();
                return getToken(context, 10 /* LinkedDelimiter */, ":" /* LinkedDelimiter */);
            default:
                if (isPluralStart(scnr)) {
                    token = getToken(context, 1 /* Pipe */, readPlural(scnr));
                    // reset
                    context.braceNest = 0;
                    context.inLinked = false;
                    return token;
                }
                if (isLinkedDotStart(scnr, context) ||
                    isLinkedDelimiterStart(scnr, context)) {
                    skipSpaces(scnr);
                    return readTokenInLinked(scnr, context);
                }
                if (isLinkedModifierStart(scnr, context)) {
                    skipSpaces(scnr);
                    return getToken(context, 12 /* LinkedModifier */, readLinkedModifier(scnr));
                }
                if (isLinkedReferStart(scnr, context)) {
                    skipSpaces(scnr);
                    if (ch === "{" /* BraceLeft */) {
                        // scan the placeholder
                        return readTokenInPlaceholder(scnr, context) || token;
                    }
                    else {
                        return getToken(context, 11 /* LinkedKey */, readLinkedRefer(scnr));
                    }
                }
                if (currentType === 8 /* LinkedAlias */) {
                    emitError(CompileErrorCodes.INVALID_LINKED_FORMAT, currentPosition(), 0);
                }
                context.braceNest = 0;
                context.inLinked = false;
                return readToken(scnr, context);
        }
    }
    // TODO: We need refactoring of token parsing ...
    function readToken(scnr, context) {
        let token = { type: 14 /* EOF */ };
        if (context.braceNest > 0) {
            return readTokenInPlaceholder(scnr, context) || getEndToken(context);
        }
        if (context.inLinked) {
            return readTokenInLinked(scnr, context) || getEndToken(context);
        }
        const ch = scnr.currentChar();
        switch (ch) {
            case "{" /* BraceLeft */:
                return readTokenInPlaceholder(scnr, context) || getEndToken(context);
            case "}" /* BraceRight */:
                emitError(CompileErrorCodes.UNBALANCED_CLOSING_BRACE, currentPosition(), 0);
                scnr.next();
                return getToken(context, 3 /* BraceRight */, "}" /* BraceRight */);
            case "@" /* LinkedAlias */:
                return readTokenInLinked(scnr, context) || getEndToken(context);
            default:
                if (isPluralStart(scnr)) {
                    token = getToken(context, 1 /* Pipe */, readPlural(scnr));
                    // reset
                    context.braceNest = 0;
                    context.inLinked = false;
                    return token;
                }
                if (isTextStart(scnr)) {
                    return getToken(context, 0 /* Text */, readText(scnr));
                }
                if (ch === "%" /* Modulo */) {
                    scnr.next();
                    return getToken(context, 4 /* Modulo */, "%" /* Modulo */);
                }
                break;
        }
        return token;
    }
    function nextToken() {
        const { currentType, offset, startLoc, endLoc } = _context;
        _context.lastType = currentType;
        _context.lastOffset = offset;
        _context.lastStartLoc = startLoc;
        _context.lastEndLoc = endLoc;
        _context.offset = currentOffset();
        _context.startLoc = currentPosition();
        if (_scnr.currentChar() === EOF) {
            return getToken(_context, 14 /* EOF */);
        }
        return readToken(_scnr, _context);
    }
    return {
        nextToken,
        currentOffset,
        currentPosition,
        context
    };
}

const ERROR_DOMAIN = 'parser';
// Backslash backslash, backslash quote, uHHHH, UHHHHHH.
const KNOWN_ESCAPES = /(?:\\\\|\\'|\\u([0-9a-fA-F]{4})|\\U([0-9a-fA-F]{6}))/g;
function fromEscapeSequence(match, codePoint4, codePoint6) {
    switch (match) {
        case `\\\\`:
            return `\\`;
        case `\\\'`:
            return `\'`;
        default: {
            const codePoint = parseInt(codePoint4 || codePoint6, 16);
            if (codePoint <= 0xd7ff || codePoint >= 0xe000) {
                return String.fromCodePoint(codePoint);
            }
            // invalid ...
            // Replace them with U+FFFD REPLACEMENT CHARACTER.
            return '�';
        }
    }
}
function createParser(options = {}) {
    const location = options.location !== false;
    const { onError } = options;
    function emitError(tokenzer, code, start, offset, ...args) {
        const end = tokenzer.currentPosition();
        end.offset += offset;
        end.column += offset;
        if (onError) {
            const loc = createLocation(start, end);
            const err = createCompileError(code, loc, {
                domain: ERROR_DOMAIN,
                args
            });
            onError(err);
        }
    }
    function startNode(type, offset, loc) {
        const node = {
            type,
            start: offset,
            end: offset
        };
        if (location) {
            node.loc = { start: loc, end: loc };
        }
        return node;
    }
    function endNode(node, offset, pos, type) {
        node.end = offset;
        if (type) {
            node.type = type;
        }
        if (location && node.loc) {
            node.loc.end = pos;
        }
    }
    function parseText(tokenizer, value) {
        const context = tokenizer.context();
        const node = startNode(3 /* Text */, context.offset, context.startLoc);
        node.value = value;
        endNode(node, tokenizer.currentOffset(), tokenizer.currentPosition());
        return node;
    }
    function parseList(tokenizer, index) {
        const context = tokenizer.context();
        const { lastOffset: offset, lastStartLoc: loc } = context; // get brace left loc
        const node = startNode(5 /* List */, offset, loc);
        node.index = parseInt(index, 10);
        tokenizer.nextToken(); // skip brach right
        endNode(node, tokenizer.currentOffset(), tokenizer.currentPosition());
        return node;
    }
    function parseNamed(tokenizer, key) {
        const context = tokenizer.context();
        const { lastOffset: offset, lastStartLoc: loc } = context; // get brace left loc
        const node = startNode(4 /* Named */, offset, loc);
        node.key = key;
        tokenizer.nextToken(); // skip brach right
        endNode(node, tokenizer.currentOffset(), tokenizer.currentPosition());
        return node;
    }
    function parseLiteral(tokenizer, value) {
        const context = tokenizer.context();
        const { lastOffset: offset, lastStartLoc: loc } = context; // get brace left loc
        const node = startNode(9 /* Literal */, offset, loc);
        node.value = value.replace(KNOWN_ESCAPES, fromEscapeSequence);
        tokenizer.nextToken(); // skip brach right
        endNode(node, tokenizer.currentOffset(), tokenizer.currentPosition());
        return node;
    }
    function parseLinkedModifier(tokenizer) {
        const token = tokenizer.nextToken();
        const context = tokenizer.context();
        const { lastOffset: offset, lastStartLoc: loc } = context; // get linked dot loc
        const node = startNode(8 /* LinkedModifier */, offset, loc);
        if (token.type !== 12 /* LinkedModifier */) {
            // empty modifier
            emitError(tokenizer, CompileErrorCodes.UNEXPECTED_EMPTY_LINKED_MODIFIER, context.lastStartLoc, 0);
            node.value = '';
            endNode(node, offset, loc);
            return {
                nextConsumeToken: token,
                node
            };
        }
        // check token
        if (token.value == null) {
            emitError(tokenizer, CompileErrorCodes.UNEXPECTED_LEXICAL_ANALYSIS, context.lastStartLoc, 0, getTokenCaption(token));
        }
        node.value = token.value || '';
        endNode(node, tokenizer.currentOffset(), tokenizer.currentPosition());
        return {
            node
        };
    }
    function parseLinkedKey(tokenizer, value) {
        const context = tokenizer.context();
        const node = startNode(7 /* LinkedKey */, context.offset, context.startLoc);
        node.value = value;
        endNode(node, tokenizer.currentOffset(), tokenizer.currentPosition());
        return node;
    }
    function parseLinked(tokenizer) {
        const context = tokenizer.context();
        const linkedNode = startNode(6 /* Linked */, context.offset, context.startLoc);
        let token = tokenizer.nextToken();
        if (token.type === 9 /* LinkedDot */) {
            const parsed = parseLinkedModifier(tokenizer);
            linkedNode.modifier = parsed.node;
            token = parsed.nextConsumeToken || tokenizer.nextToken();
        }
        // asset check token
        if (token.type !== 10 /* LinkedDelimiter */) {
            emitError(tokenizer, CompileErrorCodes.UNEXPECTED_LEXICAL_ANALYSIS, context.lastStartLoc, 0, getTokenCaption(token));
        }
        token = tokenizer.nextToken();
        // skip brace left
        if (token.type === 2 /* BraceLeft */) {
            token = tokenizer.nextToken();
        }
        switch (token.type) {
            case 11 /* LinkedKey */:
                if (token.value == null) {
                    emitError(tokenizer, CompileErrorCodes.UNEXPECTED_LEXICAL_ANALYSIS, context.lastStartLoc, 0, getTokenCaption(token));
                }
                linkedNode.key = parseLinkedKey(tokenizer, token.value || '');
                break;
            case 5 /* Named */:
                if (token.value == null) {
                    emitError(tokenizer, CompileErrorCodes.UNEXPECTED_LEXICAL_ANALYSIS, context.lastStartLoc, 0, getTokenCaption(token));
                }
                linkedNode.key = parseNamed(tokenizer, token.value || '');
                break;
            case 6 /* List */:
                if (token.value == null) {
                    emitError(tokenizer, CompileErrorCodes.UNEXPECTED_LEXICAL_ANALYSIS, context.lastStartLoc, 0, getTokenCaption(token));
                }
                linkedNode.key = parseList(tokenizer, token.value || '');
                break;
            case 7 /* Literal */:
                if (token.value == null) {
                    emitError(tokenizer, CompileErrorCodes.UNEXPECTED_LEXICAL_ANALYSIS, context.lastStartLoc, 0, getTokenCaption(token));
                }
                linkedNode.key = parseLiteral(tokenizer, token.value || '');
                break;
            default:
                // empty key
                emitError(tokenizer, CompileErrorCodes.UNEXPECTED_EMPTY_LINKED_KEY, context.lastStartLoc, 0);
                const nextContext = tokenizer.context();
                const emptyLinkedKeyNode = startNode(7 /* LinkedKey */, nextContext.offset, nextContext.startLoc);
                emptyLinkedKeyNode.value = '';
                endNode(emptyLinkedKeyNode, nextContext.offset, nextContext.startLoc);
                linkedNode.key = emptyLinkedKeyNode;
                endNode(linkedNode, nextContext.offset, nextContext.startLoc);
                return {
                    nextConsumeToken: token,
                    node: linkedNode
                };
        }
        endNode(linkedNode, tokenizer.currentOffset(), tokenizer.currentPosition());
        return {
            node: linkedNode
        };
    }
    function parseMessage(tokenizer) {
        const context = tokenizer.context();
        const startOffset = context.currentType === 1 /* Pipe */
            ? tokenizer.currentOffset()
            : context.offset;
        const startLoc = context.currentType === 1 /* Pipe */
            ? context.endLoc
            : context.startLoc;
        const node = startNode(2 /* Message */, startOffset, startLoc);
        node.items = [];
        let nextToken = null;
        do {
            const token = nextToken || tokenizer.nextToken();
            nextToken = null;
            switch (token.type) {
                case 0 /* Text */:
                    if (token.value == null) {
                        emitError(tokenizer, CompileErrorCodes.UNEXPECTED_LEXICAL_ANALYSIS, context.lastStartLoc, 0, getTokenCaption(token));
                    }
                    node.items.push(parseText(tokenizer, token.value || ''));
                    break;
                case 6 /* List */:
                    if (token.value == null) {
                        emitError(tokenizer, CompileErrorCodes.UNEXPECTED_LEXICAL_ANALYSIS, context.lastStartLoc, 0, getTokenCaption(token));
                    }
                    node.items.push(parseList(tokenizer, token.value || ''));
                    break;
                case 5 /* Named */:
                    if (token.value == null) {
                        emitError(tokenizer, CompileErrorCodes.UNEXPECTED_LEXICAL_ANALYSIS, context.lastStartLoc, 0, getTokenCaption(token));
                    }
                    node.items.push(parseNamed(tokenizer, token.value || ''));
                    break;
                case 7 /* Literal */:
                    if (token.value == null) {
                        emitError(tokenizer, CompileErrorCodes.UNEXPECTED_LEXICAL_ANALYSIS, context.lastStartLoc, 0, getTokenCaption(token));
                    }
                    node.items.push(parseLiteral(tokenizer, token.value || ''));
                    break;
                case 8 /* LinkedAlias */:
                    const parsed = parseLinked(tokenizer);
                    node.items.push(parsed.node);
                    nextToken = parsed.nextConsumeToken || null;
                    break;
            }
        } while (context.currentType !== 14 /* EOF */ &&
            context.currentType !== 1 /* Pipe */);
        // adjust message node loc
        const endOffset = context.currentType === 1 /* Pipe */
            ? context.lastOffset
            : tokenizer.currentOffset();
        const endLoc = context.currentType === 1 /* Pipe */
            ? context.lastEndLoc
            : tokenizer.currentPosition();
        endNode(node, endOffset, endLoc);
        return node;
    }
    function parsePlural(tokenizer, offset, loc, msgNode) {
        const context = tokenizer.context();
        let hasEmptyMessage = msgNode.items.length === 0;
        const node = startNode(1 /* Plural */, offset, loc);
        node.cases = [];
        node.cases.push(msgNode);
        do {
            const msg = parseMessage(tokenizer);
            if (!hasEmptyMessage) {
                hasEmptyMessage = msg.items.length === 0;
            }
            node.cases.push(msg);
        } while (context.currentType !== 14 /* EOF */);
        if (hasEmptyMessage) {
            emitError(tokenizer, CompileErrorCodes.MUST_HAVE_MESSAGES_IN_PLURAL, loc, 0);
        }
        endNode(node, tokenizer.currentOffset(), tokenizer.currentPosition());
        return node;
    }
    function parseResource(tokenizer) {
        const context = tokenizer.context();
        const { offset, startLoc } = context;
        const msgNode = parseMessage(tokenizer);
        if (context.currentType === 14 /* EOF */) {
            return msgNode;
        }
        else {
            return parsePlural(tokenizer, offset, startLoc, msgNode);
        }
    }
    function parse(source) {
        const tokenizer = createTokenizer(source, assign({}, options));
        const context = tokenizer.context();
        const node = startNode(0 /* Resource */, context.offset, context.startLoc);
        if (location && node.loc) {
            node.loc.source = source;
        }
        node.body = parseResource(tokenizer);
        // assert whether achieved to EOF
        if (context.currentType !== 14 /* EOF */) {
            emitError(tokenizer, CompileErrorCodes.UNEXPECTED_LEXICAL_ANALYSIS, context.lastStartLoc, 0, source[context.offset] || '');
        }
        endNode(node, tokenizer.currentOffset(), tokenizer.currentPosition());
        return node;
    }
    return { parse };
}
function getTokenCaption(token) {
    if (token.type === 14 /* EOF */) {
        return 'EOF';
    }
    const name = (token.value || '').replace(/\r?\n/gu, '\\n');
    return name.length > 10 ? name.slice(0, 9) + '…' : name;
}

function createTransformer(ast, options = {} // eslint-disable-line
) {
    const _context = {
        ast,
        helpers: new Set()
    };
    const context = () => _context;
    const helper = (name) => {
        _context.helpers.add(name);
        return name;
    };
    return { context, helper };
}
function traverseNodes(nodes, transformer) {
    for (let i = 0; i < nodes.length; i++) {
        traverseNode(nodes[i], transformer);
    }
}
function traverseNode(node, transformer) {
    // TODO: if we need pre-hook of transform, should be implemented to here
    switch (node.type) {
        case 1 /* Plural */:
            traverseNodes(node.cases, transformer);
            transformer.helper("plural" /* PLURAL */);
            break;
        case 2 /* Message */:
            traverseNodes(node.items, transformer);
            break;
        case 6 /* Linked */:
            const linked = node;
            traverseNode(linked.key, transformer);
            transformer.helper("linked" /* LINKED */);
            break;
        case 5 /* List */:
            transformer.helper("interpolate" /* INTERPOLATE */);
            transformer.helper("list" /* LIST */);
            break;
        case 4 /* Named */:
            transformer.helper("interpolate" /* INTERPOLATE */);
            transformer.helper("named" /* NAMED */);
            break;
    }
    // TODO: if we need post-hook of transform, should be implemented to here
}
// transform AST
function transform(ast, options = {} // eslint-disable-line
) {
    const transformer = createTransformer(ast);
    transformer.helper("normalize" /* NORMALIZE */);
    // traverse
    ast.body && traverseNode(ast.body, transformer);
    // set meta information
    const context = transformer.context();
    ast.helpers = Array.from(context.helpers);
}

function createCodeGenerator(ast, options) {
    const { sourceMap, filename, breakLineCode, needIndent: _needIndent } = options;
    const _context = {
        source: ast.loc.source,
        filename,
        code: '',
        column: 1,
        line: 1,
        offset: 0,
        map: undefined,
        breakLineCode,
        needIndent: _needIndent,
        indentLevel: 0
    };
    const context = () => _context;
    function push(code, node) {
        _context.code += code;
    }
    function _newline(n, withBreakLine = true) {
        const _breakLineCode = withBreakLine ? breakLineCode : '';
        push(_needIndent ? _breakLineCode + `  `.repeat(n) : _breakLineCode);
    }
    function indent(withNewLine = true) {
        const level = ++_context.indentLevel;
        withNewLine && _newline(level);
    }
    function deindent(withNewLine = true) {
        const level = --_context.indentLevel;
        withNewLine && _newline(level);
    }
    function newline() {
        _newline(_context.indentLevel);
    }
    const helper = (key) => `_${key}`;
    const needIndent = () => _context.needIndent;
    return {
        context,
        push,
        indent,
        deindent,
        newline,
        helper,
        needIndent
    };
}
function generateLinkedNode(generator, node) {
    const { helper } = generator;
    generator.push(`${helper("linked" /* LINKED */)}(`);
    generateNode(generator, node.key);
    if (node.modifier) {
        generator.push(`, `);
        generateNode(generator, node.modifier);
    }
    generator.push(`)`);
}
function generateMessageNode(generator, node) {
    const { helper, needIndent } = generator;
    generator.push(`${helper("normalize" /* NORMALIZE */)}([`);
    generator.indent(needIndent());
    const length = node.items.length;
    for (let i = 0; i < length; i++) {
        generateNode(generator, node.items[i]);
        if (i === length - 1) {
            break;
        }
        generator.push(', ');
    }
    generator.deindent(needIndent());
    generator.push('])');
}
function generatePluralNode(generator, node) {
    const { helper, needIndent } = generator;
    if (node.cases.length > 1) {
        generator.push(`${helper("plural" /* PLURAL */)}([`);
        generator.indent(needIndent());
        const length = node.cases.length;
        for (let i = 0; i < length; i++) {
            generateNode(generator, node.cases[i]);
            if (i === length - 1) {
                break;
            }
            generator.push(', ');
        }
        generator.deindent(needIndent());
        generator.push(`])`);
    }
}
function generateResource(generator, node) {
    if (node.body) {
        generateNode(generator, node.body);
    }
    else {
        generator.push('null');
    }
}
function generateNode(generator, node) {
    const { helper } = generator;
    switch (node.type) {
        case 0 /* Resource */:
            generateResource(generator, node);
            break;
        case 1 /* Plural */:
            generatePluralNode(generator, node);
            break;
        case 2 /* Message */:
            generateMessageNode(generator, node);
            break;
        case 6 /* Linked */:
            generateLinkedNode(generator, node);
            break;
        case 8 /* LinkedModifier */:
            generator.push(JSON.stringify(node.value), node);
            break;
        case 7 /* LinkedKey */:
            generator.push(JSON.stringify(node.value), node);
            break;
        case 5 /* List */:
            generator.push(`${helper("interpolate" /* INTERPOLATE */)}(${helper("list" /* LIST */)}(${node.index}))`, node);
            break;
        case 4 /* Named */:
            generator.push(`${helper("interpolate" /* INTERPOLATE */)}(${helper("named" /* NAMED */)}(${JSON.stringify(node.key)}))`, node);
            break;
        case 9 /* Literal */:
            generator.push(JSON.stringify(node.value), node);
            break;
        case 3 /* Text */:
            generator.push(JSON.stringify(node.value), node);
            break;
        default:
            {
                throw new Error(`unhandled codegen node type: ${node.type}`);
            }
    }
}
// generate code from AST
const generate = (ast, options = {} // eslint-disable-line
) => {
    const mode = isString(options.mode) ? options.mode : 'normal';
    const filename = isString(options.filename)
        ? options.filename
        : 'message.intl';
    const sourceMap = !!options.sourceMap;
    // prettier-ignore
    const breakLineCode = options.breakLineCode != null
        ? options.breakLineCode
        : mode === 'arrow'
            ? ';'
            : '\n';
    const needIndent = options.needIndent ? options.needIndent : mode !== 'arrow';
    const helpers = ast.helpers || [];
    const generator = createCodeGenerator(ast, {
        mode,
        filename,
        sourceMap,
        breakLineCode,
        needIndent
    });
    generator.push(mode === 'normal' ? `function __msg__ (ctx) {` : `(ctx) => {`);
    generator.indent(needIndent);
    if (helpers.length > 0) {
        generator.push(`const { ${helpers.map(s => `${s}: _${s}`).join(', ')} } = ctx`);
        generator.newline();
    }
    generator.push(`return `);
    generateNode(generator, ast);
    generator.deindent(needIndent);
    generator.push(`}`);
    const { code, map } = generator.context();
    return {
        ast,
        code,
        map: map ? map.toJSON() : undefined // eslint-disable-line @typescript-eslint/no-explicit-any
    };
};

function baseCompile(source, options = {}) {
    const assignedOptions = assign({}, options);
    // parse source codes
    const parser = createParser(assignedOptions);
    const ast = parser.parse(source);
    // transform ASTs
    transform(ast, assignedOptions);
    // generate javascript codes
    return generate(ast, assignedOptions);
}

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$1 = '9.2.0-beta.23';
const NOT_REOSLVED = -1;
const DEFAULT_LOCALE = 'en-US';
const MISSING_RESOLVE_VALUE = '';
function getDefaultLinkedModifiers() {
    return {
        upper: (val) => (isString(val) ? val.toUpperCase() : val),
        lower: (val) => (isString(val) ? val.toLowerCase() : val),
        // prettier-ignore
        capitalize: (val) => (isString(val)
            ? `${val.charAt(0).toLocaleUpperCase()}${val.substr(1)}`
            : val)
    };
}
let _compiler;
function registerMessageCompiler(compiler) {
    _compiler = 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;
    }
    // for vue-devtools timeline event
    {
        context.__v_emitter =
            internalOptions.__v_emitter != null
                ? internalOptions.__v_emitter
                : undefined;
    }
    // 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;
    // for vue-devtools timeline event
    {
        const emitter = context.__v_emitter;
        if (emitter) {
            emitter.emit("missing" /* MISSING */, {
                locale,
                key,
                type,
                groupId: `${type}:${key}`
            });
        }
    }
    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 */

const RE_HTML_TAG = /<\/?[\w\s="/.':;#-\/]+>/;
const WARN_MESSAGE = `Detected HTML in '{source}' message. Recommend not using HTML messages to avoid XSS.`;
function checkHtmlMessage(source, options) {
    const warnHtmlMessage = isBoolean(options.warnHtmlMessage)
        ? options.warnHtmlMessage
        : true;
    if (warnHtmlMessage && RE_HTML_TAG.test(source)) {
        warn(format(WARN_MESSAGE, { source }));
    }
}
const defaultOnCacheKey = (source) => source;
let compileCache = Object.create(null);
function compileToFunction(source, options = {}) {
    {
        // check HTML message
        checkHtmlMessage(source, options);
        // check caches
        const onCacheKey = options.onCacheKey || defaultOnCacheKey;
        const key = onCacheKey(source);
        const cached = compileCache[key];
        if (cached) {
            return cached;
        }
        // compile error detecting
        let occurred = false;
        const onError = options.onError || defaultOnError;
        options.onError = (err) => {
            occurred = true;
            onError(err);
        };
        // compile
        const { code } = baseCompile(source, options);
        // evaluate function
        const msg = new Function(`return ${code}`)();
        // if occurred compile error, don't cache
        return !occurred ? (compileCache[key] = msg) : msg;
    }
}

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, messageCompiler, 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
            ? (!messageCompiler ? () => key : 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 [formatScope, targetLocale, message] = !resolvedMessage
        ? resolveMessageFormat(context, key, locale, fallbackLocale, fallbackWarn, missingWarn)
        : [
            key,
            locale,
            messages[locale] || {}
        ];
    // NOTE:
    //  Fix to work around `ssrTransfrom` bug in Vite.
    //  https://github.com/vitejs/vite/issues/4306
    //  To get around this, use temporary variables.
    //  https://github.com/nuxt/framework/issues/1461#issuecomment-954606243
    let format = formatScope;
    // 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;
    let from = locale;
    let to = null;
    const type = 'translate';
    for (let i = 0; i < locales.length; i++) {
        targetLocale = to = locales[i];
        if (locale !== targetLocale &&
            isTranslateFallbackWarn(fallbackWarn, key)) {
            onWarn(getWarnMessage$1(CoreWarnCodes.FALLBACK_TO_TRANSLATE, {
                key,
                target: targetLocale
            }));
        }
        // for vue-devtools timeline event
        if (locale !== targetLocale) {
            const emitter = context.__v_emitter;
            if (emitter) {
                emitter.emit("fallback" /* FALBACK */, {
                    type,
                    key,
                    from,
                    to,
                    groupId: `${type}:${key}`
                });
            }
        }
        message =
            messages[targetLocale] || {};
        // for vue-devtools timeline event
        let start = null;
        let startTag;
        let endTag;
        if (inBrowser) {
            start = window.performance.now();
            startTag = 'intlify-message-resolve-start';
            endTag = 'intlify-message-resolve-end';
            mark && mark(startTag);
        }
        if ((format = resolveValue(message, key)) === null) {
            // if null, resolve with object key path
            format = message[key]; // eslint-disable-line @typescript-eslint/no-explicit-any
        }
        // for vue-devtools timeline event
        if (inBrowser) {
            const end = window.performance.now();
            const emitter = context.__v_emitter;
            if (emitter && start && format) {
                emitter.emit("message-resolve" /* MESSAGE_RESOLVE */, {
                    type: "message-resolve" /* MESSAGE_RESOLVE */,
                    key,
                    message: format,
                    time: end - start,
                    groupId: `${type}:${key}`
                });
            }
            if (startTag && endTag && mark && measure) {
                mark(endTag);
                measure('intlify message resolve', startTag, endTag);
            }
        }
        if (isString(format) || isFunction(format))
            break;
        const missingRet = handleMissing(context, // eslint-disable-line @typescript-eslint/no-explicit-any
        key, targetLocale, missingWarn, type);
        if (missingRet !== key) {
            format = missingRet;
        }
        from = to;
    }
    return [format, targetLocale, message];
}
function compileMessageFormat(context, key, targetLocale, format, cacheBaseKey, errorDetector) {
    const { messageCompiler, warnHtmlMessage } = context;
    if (isMessageFunction(format)) {
        const msg = format;
        msg.locale = msg.locale || targetLocale;
        msg.key = msg.key || key;
        return msg;
    }
    // for vue-devtools timeline event
    let start = null;
    let startTag;
    let endTag;
    if (inBrowser) {
        start = window.performance.now();
        startTag = 'intlify-message-compilation-start';
        endTag = 'intlify-message-compilation-end';
        mark && mark(startTag);
    }
    const msg = messageCompiler(format, getCompileOptions(context, targetLocale, cacheBaseKey, format, warnHtmlMessage, errorDetector));
    // for vue-devtools timeline event
    if (inBrowser) {
        const end = window.performance.now();
        const emitter = context.__v_emitter;
        if (emitter && start) {
            emitter.emit("message-compilation" /* MESSAGE_COMPILATION */, {
                type: "message-compilation" /* MESSAGE_COMPILATION */,
                message: format,
                time: end - start,
                groupId: `${'translate'}:${key}`
            });
        }
        if (startTag && endTag && mark && measure) {
            mark(endTag);
            measure('intlify message compilation', startTag, endTag);
        }
    }
    msg.locale = targetLocale;
    msg.key = key;
    msg.source = format;
    return msg;
}
function evaluateMessage(context, msg, msgCtx) {
    // for vue-devtools timeline event
    let start = null;
    let startTag;
    let endTag;
    if (inBrowser) {
        start = window.performance.now();
        startTag = 'intlify-message-evaluation-start';
        endTag = 'intlify-message-evaluation-end';
        mark && mark(startTag);
    }
    const messaged = msg(msgCtx);
    // for vue-devtools timeline event
    if (inBrowser) {
        const end = window.performance.now();
        const emitter = context.__v_emitter;
        if (emitter && start) {
            emitter.emit("message-evaluation" /* MESSAGE_EVALUATION */, {
                type: "message-evaluation" /* MESSAGE_EVALUATION */,
                value: messaged,
                time: end - start,
                groupId: `${'translate'}:${msg.key}`
            });
        }
        if (startTag && endTag && mark && measure) {
            mark(endTag);
            measure('intlify message evaluation', startTag, endTag);
        }
    }
    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);
            {
                const message = `Message compilation error: ${err.message}`;
                const codeFrame = err.location &&
                    generateCodeFrame(source, err.location.start.offset, err.location.end.offset);
                const emitter = context.__v_emitter;
                if (emitter) {
                    emitter.emit("compile-error" /* COMPILE_ERROR */, {
                        message: source,
                        error: err.message,
                        start: err.location && err.location.start.offset,
                        end: err.location && err.location.end.offset,
                        groupId: `${'translate'}:${key}`
                    });
                }
                console.error(codeFrame ? `${message}\n${codeFrame}` : message);
            }
        },
        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;
    let from = locale;
    let to = null;
    const type = 'datetime format';
    for (let i = 0; i < locales.length; i++) {
        targetLocale = to = locales[i];
        if (locale !== targetLocale &&
            isTranslateFallbackWarn(fallbackWarn, key)) {
            onWarn(getWarnMessage$1(CoreWarnCodes.FALLBACK_TO_DATE_FORMAT, {
                key,
                target: targetLocale
            }));
        }
        // for vue-devtools timeline event
        if (locale !== targetLocale) {
            const emitter = context.__v_emitter;
            if (emitter) {
                emitter.emit("fallback" /* FALBACK */, {
                    type,
                    key,
                    from,
                    to,
                    groupId: `${type}:${key}`
                });
            }
        }
        datetimeFormat =
            datetimeFormats[targetLocale] || {};
        format = datetimeFormat[key];
        if (isPlainObject(format))
            break;
        handleMissing(context, key, targetLocale, missingWarn, type); // eslint-disable-line @typescript-eslint/no-explicit-any
        from = to;
    }
    // checking format and target locale
    if (!isPlainObject(format) || !isString(targetLocale)) {
        return unresolving ? NOT_REOSLVED : key;
    }
    let id = `${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;
    let from = locale;
    let to = null;
    const type = 'number format';
    for (let i = 0; i < locales.length; i++) {
        targetLocale = to = locales[i];
        if (locale !== targetLocale &&
            isTranslateFallbackWarn(fallbackWarn, key)) {
            onWarn(getWarnMessage$1(CoreWarnCodes.FALLBACK_TO_NUMBER_FORMAT, {
                key,
                target: targetLocale
            }));
        }
        // for vue-devtools timeline event
        if (locale !== targetLocale) {
            const emitter = context.__v_emitter;
            if (emitter) {
                emitter.emit("fallback" /* FALBACK */, {
                    type,
                    key,
                    from,
                    to,
                    groupId: `${type}:${key}`
                });
            }
        }
        numberFormat =
            numberFormats[targetLocale] || {};
        format = numberFormat[key];
        if (isPlainObject(format))
            break;
        handleMissing(context, key, targetLocale, missingWarn, type); // eslint-disable-line @typescript-eslint/no-explicit-any
        from = to;
    }
    // checking format and target locale
    if (!isPlainObject(format) || !isString(targetLocale)) {
        return unresolving ? NOT_REOSLVED : key;
    }
    let id = `${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.23';
/**
 * 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 TransrateVNodeSymbol = 
/* #__PURE__*/ makeSymbol('__transrateVNode');
const DatetimePartsSymbol = /* #__PURE__*/ makeSymbol('__datetimeParts');
const NumberPartsSymbol = /* #__PURE__*/ makeSymbol('__numberParts');
const EnableEmitter = /* #__PURE__*/ makeSymbol('__enableEmitter');
const DisableEmitter = /* #__PURE__*/ makeSymbol('__disableEmitter');
const SetPluralRulesSymbol = makeSymbol('__setPluralRules');
const InejctWithOption = /* #__PURE__*/ makeSymbol('__injectWithOption');

/* eslint-disable @typescript-eslint/no-explicit-any */
/**
 * 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(custom => {
            if ('locale' in custom && 'resource' in custom) {
                const { locale, resource } = custom;
                if (locale) {
                    ret[locale] = ret[locale] || {};
                    deepCopy(resource, ret[locale]);
                }
                else {
                    deepCopy(resource, ret);
                }
            }
            else {
                isString(custom) && deepCopy(JSON.parse(custom), 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-disable-next-line @typescript-eslint/no-explicit-any
function getComponentOptions(instance) {
    return instance.type ;
}
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 createTextNode(key) {
    return createVNode(Text, null, key, 0)
        ;
}
/* eslint-enable @typescript-eslint/no-explicit-any */

/* eslint-disable @typescript-eslint/no-explicit-any */
// extend VNode interface
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();
    let meta = null; // eslint-disable-line @typescript-eslint/no-explicit-any
    return instance && (meta = getComponentOptions(instance)[DEVTOOLS_META])
        ? { [DEVTOOLS_META]: 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);
    // 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;
        }
        {
            ctxOptions.__v_emitter = isPlainObject(_context)
                ? _context.__v_emitter
                : 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;
            _context.locale = _locale.value;
        }
    });
    // fallbackLocale
    const fallbackLocale = computed({
        get: () => _fallbackLocale.value,
        set: val => {
            _fallbackLocale.value = 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
                    }));
                }
                // for vue-devtools timeline event
                {
                    const { __v_emitter: emitter } = _context;
                    if (emitter && _fallbackRoot) {
                        emitter.emit("fallback" /* FALBACK */, {
                            type: warnType,
                            key,
                            to: 'global',
                            groupId: `${warnType}:${key}`
                        });
                    }
                }
            }
            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));
    }
    // for custom processor
    function normalize(values) {
        return values.map(val => (isString(val) ? createTextNode(val) : val));
    }
    const interpolate = (val) => val;
    const processor = {
        normalize,
        interpolate,
        type: 'vnode'
    };
    // transrateVNode, using for `i18n-t` component
    function transrateVNode(...args) {
        return wrapWithDeps(context => {
            let ret;
            const _context = context;
            try {
                _context.processor = processor;
                ret = Reflect.apply(translate, null, [_context, ...args]);
            }
            finally {
                _context.processor = null;
            }
            return ret;
        }, () => parseTranslateArgs(...args), 'translate', 
        // eslint-disable-next-line @typescript-eslint/no-explicit-any
        root => root[TransrateVNodeSymbol](...args), key => [createTextNode(key)], val => isArray(val));
    }
    // numberParts, using for `i18n-n` component
    function numberParts(...args) {
        return wrapWithDeps(context => Reflect.apply(number, null, [context, ...args]), () => parseNumberArgs(...args), 'number format', 
        // eslint-disable-next-line @typescript-eslint/no-explicit-any
        root => root[NumberPartsSymbol](...args), () => [], val => isString(val) || isArray(val));
    }
    // datetimeParts, using for `i18n-d` component
    function datetimeParts(...args) {
        return wrapWithDeps(context => Reflect.apply(datetime, null, [context, ...args]), () => parseDateTimeArgs(...args), 'datetime format', 
        // eslint-disable-next-line @typescript-eslint/no-explicit-any
        root => root[DatetimePartsSymbol](...args), () => [], val => isString(val) || isArray(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;
        _context.messages = _messages.value;
    }
    // mergeLocaleMessage
    function mergeLocaleMessage(locale, message) {
        _messages.value[locale] = _messages.value[locale] || {};
        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;
        _context.datetimeFormats = _datetimeFormats.value;
        clearDateTimeFormat(_context, locale, format);
    }
    // mergeDateTimeFormat
    function mergeDateTimeFormat(locale, format) {
        _datetimeFormats.value[locale] = assign(_datetimeFormats.value[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;
        _context.numberFormats = _numberFormats.value;
        clearNumberFormat(_context, locale, format);
    }
    // mergeNumberFormat
    function mergeNumberFormat(locale, format) {
        _numberFormats.value[locale] = assign(_numberFormats.value[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;
                _context.locale = val;
                updateFallbackLocale(_context, _locale.value, _fallbackLocale.value);
            }
        });
        watch(__root.fallbackLocale, (val) => {
            if (_inheritLocale) {
                _fallbackLocale.value = 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 (val && __root) {
                _locale.value = __root.locale.value;
                _fallbackLocale.value = __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[InejctWithOption] = options.__injectWithOption;
        composer[TransrateVNodeSymbol] = transrateVNode;
        composer[DatetimePartsSymbol] = datetimeParts;
        composer[NumberPartsSymbol] = numberParts;
    }
    // for vue-devtools timeline event
    {
        composer[EnableEmitter] = (emitter) => {
            _context.__v_emitter = emitter;
        };
        composer[DisableEmitter] = () => {
            _context.__v_emitter = undefined;
        };
    }
    return composer;
}
/* eslint-enable @typescript-eslint/no-explicit-any */

/* eslint-disable @typescript-eslint/no-explicit-any */
/**
 * Convert to I18n Composer Options from VueI18n Options
 *
 * @internal
 */
function convertComposerOptions(options) {
    const locale = isString(options.locale) ? options.locale : DEFAULT_LOCALE;
    const fallbackLocale = isString(options.fallbackLocale) ||
        isArray(options.fallbackLocale) ||
        isPlainObject(options.fallbackLocale) ||
        options.fallbackLocale === false
        ? options.fallbackLocale
        : locale;
    const missing = isFunction(options.missing) ? options.missing : undefined;
    const missingWarn = isBoolean(options.silentTranslationWarn) ||
        isRegExp(options.silentTranslationWarn)
        ? !options.silentTranslationWarn
        : true;
    const fallbackWarn = isBoolean(options.silentFallbackWarn) ||
        isRegExp(options.silentFallbackWarn)
        ? !options.silentFallbackWarn
        : true;
    const fallbackRoot = isBoolean(options.fallbackRoot)
        ? options.fallbackRoot
        : true;
    const fallbackFormat = !!options.formatFallbackMessages;
    const modifiers = isPlainObject(options.modifiers) ? options.modifiers : {};
    const pluralizationRules = options.pluralizationRules;
    const postTranslation = isFunction(options.postTranslation)
        ? options.postTranslation
        : undefined;
    const warnHtmlMessage = isString(options.warnHtmlInMessage)
        ? options.warnHtmlInMessage !== 'off'
        : true;
    const escapeParameter = !!options.escapeParameterHtml;
    const inheritLocale = isBoolean(options.sync) ? options.sync : true;
    if (options.formatter) {
        warn(getWarnMessage(I18nWarnCodes.NOT_SUPPORTED_FORMATTER));
    }
    if (options.preserveDirectiveContent) {
        warn(getWarnMessage(I18nWarnCodes.NOT_SUPPORTED_PRESERVE_DIRECTIVE));
    }
    let messages = options.messages;
    if (isPlainObject(options.sharedMessages)) {
        const sharedMessages = options.sharedMessages;
        const locales = Object.keys(sharedMessages);
        messages = locales.reduce((messages, locale) => {
            const message = messages[locale] || (messages[locale] = {});
            assign(message, sharedMessages[locale]);
            return messages;
        }, (messages || {}));
    }
    const { __i18n, __root, __injectWithOption } = options;
    const datetimeFormats = options.datetimeFormats;
    const numberFormats = options.numberFormats;
    const flatJson = options.flatJson;
    return {
        locale,
        fallbackLocale,
        messages,
        flatJson,
        datetimeFormats,
        numberFormats,
        missing,
        missingWarn,
        fallbackWarn,
        fallbackRoot,
        fallbackFormat,
        modifiers,
        pluralRules: pluralizationRules,
        postTranslation,
        warnHtmlMessage,
        escapeParameter,
        messageResolver: options.messageResolver,
        inheritLocale,
        __i18n,
        __root,
        __injectWithOption
    };
}
/**
 * create VueI18n interface factory
 *
 * @internal
 */
// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
function createVueI18n(options = {}, VueI18nLegacy) {
    {
        const composer = createComposer(convertComposerOptions(options));
        // defines VueI18n
        const vueI18n = {
            // id
            id: composer.id,
            // locale
            get locale() {
                return composer.locale.value;
            },
            set locale(val) {
                composer.locale.value = val;
            },
            // fallbackLocale
            get fallbackLocale() {
                return composer.fallbackLocale.value;
            },
            set fallbackLocale(val) {
                composer.fallbackLocale.value = val;
            },
            // messages
            get messages() {
                return composer.messages.value;
            },
            // datetimeFormats
            get datetimeFormats() {
                return composer.datetimeFormats.value;
            },
            // numberFormats
            get numberFormats() {
                return composer.numberFormats.value;
            },
            // availableLocales
            get availableLocales() {
                return composer.availableLocales;
            },
            // formatter
            get formatter() {
                warn(getWarnMessage(I18nWarnCodes.NOT_SUPPORTED_FORMATTER));
                // dummy
                return {
                    interpolate() {
                        return [];
                    }
                };
            },
            set formatter(val) {
                warn(getWarnMessage(I18nWarnCodes.NOT_SUPPORTED_FORMATTER));
            },
            // missing
            get missing() {
                return composer.getMissingHandler();
            },
            set missing(handler) {
                composer.setMissingHandler(handler);
            },
            // silentTranslationWarn
            get silentTranslationWarn() {
                return isBoolean(composer.missingWarn)
                    ? !composer.missingWarn
                    : composer.missingWarn;
            },
            set silentTranslationWarn(val) {
                composer.missingWarn = isBoolean(val) ? !val : val;
            },
            // silentFallbackWarn
            get silentFallbackWarn() {
                return isBoolean(composer.fallbackWarn)
                    ? !composer.fallbackWarn
                    : composer.fallbackWarn;
            },
            set silentFallbackWarn(val) {
                composer.fallbackWarn = isBoolean(val) ? !val : val;
            },
            // modifiers
            get modifiers() {
                return composer.modifiers;
            },
            // formatFallbackMessages
            get formatFallbackMessages() {
                return composer.fallbackFormat;
            },
            set formatFallbackMessages(val) {
                composer.fallbackFormat = val;
            },
            // postTranslation
            get postTranslation() {
                return composer.getPostTranslationHandler();
            },
            set postTranslation(handler) {
                composer.setPostTranslationHandler(handler);
            },
            // sync
            get sync() {
                return composer.inheritLocale;
            },
            set sync(val) {
                composer.inheritLocale = val;
            },
            // warnInHtmlMessage
            get warnHtmlInMessage() {
                return composer.warnHtmlMessage ? 'warn' : 'off';
            },
            set warnHtmlInMessage(val) {
                composer.warnHtmlMessage = val !== 'off';
            },
            // escapeParameterHtml
            get escapeParameterHtml() {
                return composer.escapeParameter;
            },
            set escapeParameterHtml(val) {
                composer.escapeParameter = val;
            },
            // preserveDirectiveContent
            get preserveDirectiveContent() {
                warn(getWarnMessage(I18nWarnCodes.NOT_SUPPORTED_PRESERVE_DIRECTIVE));
                return true;
            },
            set preserveDirectiveContent(val) {
                warn(getWarnMessage(I18nWarnCodes.NOT_SUPPORTED_PRESERVE_DIRECTIVE));
            },
            // pluralizationRules
            get pluralizationRules() {
                return composer.pluralRules || {};
            },
            // for internal
            __composer: composer,
            // t
            t(...args) {
                const [arg1, arg2, arg3] = args;
                const options = {};
                let list = null;
                let named = null;
                if (!isString(arg1)) {
                    throw createI18nError(I18nErrorCodes.INVALID_ARGUMENT);
                }
                const key = arg1;
                if (isString(arg2)) {
                    options.locale = arg2;
                }
                else if (isArray(arg2)) {
                    list = arg2;
                }
                else if (isPlainObject(arg2)) {
                    named = arg2;
                }
                if (isArray(arg3)) {
                    list = arg3;
                }
                else if (isPlainObject(arg3)) {
                    named = arg3;
                }
                // return composer.t(key, (list || named || {}) as any, options)
                return Reflect.apply(composer.t, composer, [
                    key,
                    (list || named || {}),
                    options
                ]);
            },
            rt(...args) {
                return Reflect.apply(composer.rt, composer, [...args]);
            },
            // tc
            tc(...args) {
                const [arg1, arg2, arg3] = args;
                const options = { plural: 1 };
                let list = null;
                let named = null;
                if (!isString(arg1)) {
                    throw createI18nError(I18nErrorCodes.INVALID_ARGUMENT);
                }
                const key = arg1;
                if (isString(arg2)) {
                    options.locale = arg2;
                }
                else if (isNumber(arg2)) {
                    options.plural = arg2;
                }
                else if (isArray(arg2)) {
                    list = arg2;
                }
                else if (isPlainObject(arg2)) {
                    named = arg2;
                }
                if (isString(arg3)) {
                    options.locale = arg3;
                }
                else if (isArray(arg3)) {
                    list = arg3;
                }
                else if (isPlainObject(arg3)) {
                    named = arg3;
                }
                // return composer.t(key, (list || named || {}) as any, options)
                return Reflect.apply(composer.t, composer, [
                    key,
                    (list || named || {}),
                    options
                ]);
            },
            // te
            te(key, locale) {
                return composer.te(key, locale);
            },
            // tm
            tm(key) {
                return composer.tm(key);
            },
            // getLocaleMessage
            getLocaleMessage(locale) {
                return composer.getLocaleMessage(locale);
            },
            // setLocaleMessage
            setLocaleMessage(locale, message) {
                composer.setLocaleMessage(locale, message);
            },
            // mergeLocaleMessage
            mergeLocaleMessage(locale, message) {
                composer.mergeLocaleMessage(locale, message);
            },
            // d
            d(...args) {
                return Reflect.apply(composer.d, composer, [...args]);
            },
            // getDateTimeFormat
            getDateTimeFormat(locale) {
                return composer.getDateTimeFormat(locale);
            },
            // setDateTimeFormat
            setDateTimeFormat(locale, format) {
                composer.setDateTimeFormat(locale, format);
            },
            // mergeDateTimeFormat
            mergeDateTimeFormat(locale, format) {
                composer.mergeDateTimeFormat(locale, format);
            },
            // n
            n(...args) {
                return Reflect.apply(composer.n, composer, [...args]);
            },
            // getNumberFormat
            getNumberFormat(locale) {
                return composer.getNumberFormat(locale);
            },
            // setNumberFormat
            setNumberFormat(locale, format) {
                composer.setNumberFormat(locale, format);
            },
            // mergeNumberFormat
            mergeNumberFormat(locale, format) {
                composer.mergeNumberFormat(locale, format);
            },
            // getChoiceIndex
            // eslint-disable-next-line @typescript-eslint/no-unused-vars
            getChoiceIndex(choice, choicesLength) {
                warn(getWarnMessage(I18nWarnCodes.NOT_SUPPORTED_GET_CHOICE_INDEX));
                return -1;
            },
            // for internal
            __onComponentInstanceCreated(target) {
                const { componentInstanceCreatedListener } = options;
                if (componentInstanceCreatedListener) {
                    componentInstanceCreatedListener(target, vueI18n);
                }
            }
        };
        // for vue-devtools timeline event
        {
            vueI18n.__enableEmitter = (emitter) => {
                const __composer = composer;
                __composer[EnableEmitter] && __composer[EnableEmitter](emitter);
            };
            vueI18n.__disableEmitter = () => {
                const __composer = composer;
                __composer[DisableEmitter] && __composer[DisableEmitter]();
            };
        }
        return vueI18n;
    }
}
/* eslint-enable @typescript-eslint/no-explicit-any */

const baseFormatProps = {
    tag: {
        type: [String, Object]
    },
    locale: {
        type: String
    },
    scope: {
        type: String,
        // NOTE: avoid https://github.com/microsoft/rushstack/issues/1050
        validator: (val /* ComponetI18nScope */) => val === 'parent' || val === 'global',
        default: 'parent' /* ComponetI18nScope */
    },
    i18n: {
        type: Object
    }
};

function getInterpolateArg(
// eslint-disable-next-line @typescript-eslint/no-explicit-any
{ slots }, // SetupContext,
keys) {
    if (keys.length === 1 && keys[0] === 'default') {
        // default slot with list
        const ret = slots.default ? slots.default() : [];
        // eslint-disable-next-line @typescript-eslint/no-explicit-any
        return ret.reduce((slot, current) => {
            return (slot = [
                ...slot,
                ...(isArray(current.children) ? current.children : [current])
            ]);
        }, []);
    }
    else {
        // named slots
        return keys.reduce((arg, key) => {
            const slot = slots[key];
            if (slot) {
                arg[key] = slot();
            }
            return arg;
        }, {});
    }
}
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function getFragmentableTag(tag) {
    return Fragment ;
}

/**
 * Translation Component
 *
 * @remarks
 * See the following items for property about details
 *
 * @VueI18nSee [TranslationProps](component#translationprops)
 * @VueI18nSee [BaseFormatProps](component#baseformatprops)
 * @VueI18nSee [Component Interpolation](../guide/advanced/component)
 *
 * @example
 * ```html
 * <div id="app">
 *   <!-- ... -->
 *   <i18n path="term" tag="label" for="tos">
 *     <a :href="url" target="_blank">{{ $t('tos') }}</a>
 *   </i18n>
 *   <!-- ... -->
 * </div>
 * ```
 * ```js
 * import { createApp } from 'vue'
 * import { createI18n } from 'vue-i18n'
 *
 * const messages = {
 *   en: {
 *     tos: 'Term of Service',
 *     term: 'I accept xxx {0}.'
 *   },
 *   ja: {
 *     tos: '利用規約',
 *     term: '私は xxx の{0}に同意します。'
 *   }
 * }
 *
 * const i18n = createI18n({
 *   locale: 'en',
 *   messages
 * })
 *
 * const app = createApp({
 *   data: {
 *     url: '/term'
 *   }
 * }).use(i18n).mount('#app')
 * ```
 *
 * @VueI18nComponent
 */
const Translation =  /* defineComponent */ {
    /* eslint-disable */
    name: 'i18n-t',
    props: assign({
        keypath: {
            type: String,
            required: true
        },
        plural: {
            type: [Number, String],
            // eslint-disable-next-line @typescript-eslint/no-explicit-any
            validator: (val) => isNumber(val) || !isNaN(val)
        }
    }, baseFormatProps),
    /* eslint-enable */
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    setup(props, context) {
        const { slots, attrs } = context;
        // NOTE: avoid https://github.com/microsoft/rushstack/issues/1050
        const i18n = props.i18n ||
            useI18n({
                useScope: props.scope,
                __useComponent: true
            });
        const keys = Object.keys(slots).filter(key => key !== '_');
        return () => {
            const options = {};
            if (props.locale) {
                options.locale = props.locale;
            }
            if (props.plural !== undefined) {
                options.plural = isString(props.plural) ? +props.plural : props.plural;
            }
            const arg = getInterpolateArg(context, keys);
            // eslint-disable-next-line @typescript-eslint/no-explicit-any
            const children = i18n[TransrateVNodeSymbol](props.keypath, arg, options);
            const assignedAttrs = assign({}, attrs);
            const tag = isString(props.tag) || isObject(props.tag)
                ? props.tag
                : getFragmentableTag();
            return h(tag, assignedAttrs, children);
        };
    }
};

function renderFormatter(props, context, slotKeys, partFormatter) {
    const { slots, attrs } = context;
    return () => {
        const options = { part: true };
        let overrides = {};
        if (props.locale) {
            options.locale = props.locale;
        }
        if (isString(props.format)) {
            options.key = props.format;
        }
        else if (isObject(props.format)) {
            // eslint-disable-next-line @typescript-eslint/no-explicit-any
            if (isString(props.format.key)) {
                // eslint-disable-next-line @typescript-eslint/no-explicit-any
                options.key = props.format.key;
            }
            // Filter out number format options only
            overrides = Object.keys(props.format).reduce((options, prop) => {
                return slotKeys.includes(prop)
                    ? assign({}, options, { [prop]: props.format[prop] }) // eslint-disable-line @typescript-eslint/no-explicit-any
                    : options;
            }, {});
        }
        const parts = partFormatter(...[props.value, options, overrides]);
        let children = [options.key];
        if (isArray(parts)) {
            children = parts.map((part, index) => {
                const slot = slots[part.type];
                return slot
                    ? slot({ [part.type]: part.value, index, parts })
                    : [part.value];
            });
        }
        else if (isString(parts)) {
            children = [parts];
        }
        const assignedAttrs = assign({}, attrs);
        const tag = isString(props.tag) || isObject(props.tag)
            ? props.tag
            : getFragmentableTag();
        return h(tag, assignedAttrs, children);
    };
}

const NUMBER_FORMAT_KEYS = [
    'localeMatcher',
    'style',
    'unit',
    'unitDisplay',
    'currency',
    'currencyDisplay',
    'useGrouping',
    'numberingSystem',
    'minimumIntegerDigits',
    'minimumFractionDigits',
    'maximumFractionDigits',
    'minimumSignificantDigits',
    'maximumSignificantDigits',
    'notation',
    'formatMatcher'
];
/**
 * Number Format Component
 *
 * @remarks
 * See the following items for property about details
 *
 * @VueI18nSee [FormattableProps](component#formattableprops)
 * @VueI18nSee [BaseFormatProps](component#baseformatprops)
 * @VueI18nSee [Custom Formatting](../guide/essentials/number#custom-formatting)
 *
 * @VueI18nDanger
 * Not supported IE, due to no support `Intl.NumberFormat#formatToParts` in [IE](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/formatToParts)
 *
 * If you want to use it, you need to use [polyfill](https://github.com/formatjs/formatjs/tree/main/packages/intl-numberformat)
 *
 * @VueI18nComponent
 */
const NumberFormat =  /* defineComponent */ {
    /* eslint-disable */
    name: 'i18n-n',
    props: assign({
        value: {
            type: Number,
            required: true
        },
        format: {
            type: [String, Object]
        }
    }, baseFormatProps),
    /* eslint-enable */
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    setup(props, context) {
        const i18n = props.i18n ||
            useI18n({ useScope: 'parent', __useComponent: true });
        return renderFormatter(props, context, NUMBER_FORMAT_KEYS, (...args) => 
        // eslint-disable-next-line @typescript-eslint/no-explicit-any
        i18n[NumberPartsSymbol](...args));
    }
};

const DATETIME_FORMAT_KEYS = [
    'dateStyle',
    'timeStyle',
    'fractionalSecondDigits',
    'calendar',
    'dayPeriod',
    'numberingSystem',
    'localeMatcher',
    'timeZone',
    'hour12',
    'hourCycle',
    'formatMatcher',
    'weekday',
    'era',
    'year',
    'month',
    'day',
    'hour',
    'minute',
    'second',
    'timeZoneName'
];
/**
 * Datetime Format Component
 *
 * @remarks
 * See the following items for property about details
 *
 * @VueI18nSee [FormattableProps](component#formattableprops)
 * @VueI18nSee [BaseFormatProps](component#baseformatprops)
 * @VueI18nSee [Custom Formatting](../guide/essentials/datetime#custom-formatting)
 *
 * @VueI18nDanger
 * Not supported IE, due to no support `Intl.DateTimeFormat#formatToParts` in [IE](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/formatToParts)
 *
 * If you want to use it, you need to use [polyfill](https://github.com/formatjs/formatjs/tree/main/packages/intl-datetimeformat)
 *
 * @VueI18nComponent
 */
const DatetimeFormat =  /*defineComponent */ {
    /* eslint-disable */
    name: 'i18n-d',
    props: assign({
        value: {
            type: [Number, Date],
            required: true
        },
        format: {
            type: [String, Object]
        }
    }, baseFormatProps),
    /* eslint-enable */
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    setup(props, context) {
        const i18n = props.i18n ||
            useI18n({ useScope: 'parent', __useComponent: true });
        return renderFormatter(props, context, DATETIME_FORMAT_KEYS, (...args) => 
        // eslint-disable-next-line @typescript-eslint/no-explicit-any
        i18n[DatetimePartsSymbol](...args));
    }
};

function getComposer$2(i18n, instance) {
    const i18nInternal = i18n;
    if (i18n.mode === 'composition') {
        return (i18nInternal.__getInstance(instance) || i18n.global);
    }
    else {
        const vueI18n = i18nInternal.__getInstance(instance);
        return vueI18n != null
            ? vueI18n.__composer
            : i18n.global.__composer;
    }
}
function vTDirective(i18n) {
    const bind = (el, { instance, value, modifiers }) => {
        /* istanbul ignore if */
        if (!instance || !instance.$) {
            throw createI18nError(I18nErrorCodes.UNEXPECTED_ERROR);
        }
        const composer = getComposer$2(i18n, instance.$);
        if (modifiers.preserve) {
            warn(getWarnMessage(I18nWarnCodes.NOT_SUPPORTED_PRESERVE));
        }
        const parsedValue = parseValue(value);
        // el.textContent = composer.t(...makeParams(parsedValue))
        el.textContent = Reflect.apply(composer.t, composer, [
            ...makeParams(parsedValue)
        ]);
    };
    return {
        beforeMount: bind,
        beforeUpdate: bind
    };
}
function parseValue(value) {
    if (isString(value)) {
        return { path: value };
    }
    else if (isPlainObject(value)) {
        if (!('path' in value)) {
            throw createI18nError(I18nErrorCodes.REQUIRED_VALUE, 'path');
        }
        return value;
    }
    else {
        throw createI18nError(I18nErrorCodes.INVALID_VALUE);
    }
}
function makeParams(value) {
    const { path, locale, args, choice, plural } = value;
    const options = {};
    const named = args || {};
    if (isString(locale)) {
        options.locale = locale;
    }
    if (isNumber(choice)) {
        options.plural = choice;
    }
    if (isNumber(plural)) {
        options.plural = plural;
    }
    return [path, named, options];
}

function apply(app, i18n, ...options) {
    const pluginOptions = isPlainObject(options[0])
        ? options[0]
        : {};
    const useI18nComponentName = !!pluginOptions.useI18nComponentName;
    const globalInstall = isBoolean(pluginOptions.globalInstall)
        ? pluginOptions.globalInstall
        : true;
    if (globalInstall && useI18nComponentName) {
        warn(getWarnMessage(I18nWarnCodes.COMPONENT_NAME_LEGACY_COMPATIBLE, {
            name: Translation.name
        }));
    }
    if (globalInstall) {
        // install components
        app.component(!useI18nComponentName ? Translation.name : 'i18n', Translation);
        app.component(NumberFormat.name, NumberFormat);
        app.component(DatetimeFormat.name, DatetimeFormat);
    }
    // install directive
    {
        app.directive('t', vTDirective(i18n));
    }
}

var global$1 = (typeof global !== "undefined" ? global :
            typeof self !== "undefined" ? self :
            typeof window !== "undefined" ? window : {});

function getDevtoolsGlobalHook() {
    return getTarget().__VUE_DEVTOOLS_GLOBAL_HOOK__;
}
function getTarget() {
    // @ts-ignore
    return (typeof navigator !== 'undefined' && typeof window !== 'undefined')
        ? window
        : typeof global$1 !== 'undefined'
            ? global$1
            : {};
}
const isProxyAvailable = typeof Proxy === 'function';

const HOOK_SETUP = 'devtools-plugin:setup';
const HOOK_PLUGIN_SETTINGS_SET = 'plugin:settings:set';

class ApiProxy {
    constructor(plugin, hook) {
        this.target = null;
        this.targetQueue = [];
        this.onQueue = [];
        this.plugin = plugin;
        this.hook = hook;
        const defaultSettings = {};
        if (plugin.settings) {
            for (const id in plugin.settings) {
                const item = plugin.settings[id];
                defaultSettings[id] = item.defaultValue;
            }
        }
        const localSettingsSaveId = `__vue-devtools-plugin-settings__${plugin.id}`;
        let currentSettings = { ...defaultSettings };
        try {
            const raw = localStorage.getItem(localSettingsSaveId);
            const data = JSON.parse(raw);
            Object.assign(currentSettings, data);
        }
        catch (e) {
            // noop
        }
        this.fallbacks = {
            getSettings() {
                return currentSettings;
            },
            setSettings(value) {
                try {
                    localStorage.setItem(localSettingsSaveId, JSON.stringify(value));
                }
                catch (e) {
                    // noop
                }
                currentSettings = value;
            }
        };
        hook.on(HOOK_PLUGIN_SETTINGS_SET, (pluginId, value) => {
            if (pluginId === this.plugin.id) {
                this.fallbacks.setSettings(value);
            }
        });
        this.proxiedOn = new Proxy({}, {
            get: (_target, prop) => {
                if (this.target) {
                    return this.target.on[prop];
                }
                else {
                    return (...args) => {
                        this.onQueue.push({
                            method: prop,
                            args
                        });
                    };
                }
            }
        });
        this.proxiedTarget = new Proxy({}, {
            get: (_target, prop) => {
                if (this.target) {
                    return this.target[prop];
                }
                else if (prop === 'on') {
                    return this.proxiedOn;
                }
                else if (Object.keys(this.fallbacks).includes(prop)) {
                    return (...args) => {
                        this.targetQueue.push({
                            method: prop,
                            args,
                            resolve: () => { }
                        });
                        return this.fallbacks[prop](...args);
                    };
                }
                else {
                    return (...args) => {
                        return new Promise(resolve => {
                            this.targetQueue.push({
                                method: prop,
                                args,
                                resolve
                            });
                        });
                    };
                }
            }
        });
    }
    async setRealTarget(target) {
        this.target = target;
        for (const item of this.onQueue) {
            this.target.on[item.method](...item.args);
        }
        for (const item of this.targetQueue) {
            item.resolve(await this.target[item.method](...item.args));
        }
    }
}

function setupDevtoolsPlugin(pluginDescriptor, setupFn) {
    const target = getTarget();
    const hook = getDevtoolsGlobalHook();
    const enableProxy = isProxyAvailable && pluginDescriptor.enableEarlyProxy;
    if (hook && (target.__VUE_DEVTOOLS_PLUGIN_API_AVAILABLE__ || !enableProxy)) {
        hook.emit(HOOK_SETUP, pluginDescriptor, setupFn);
    }
    else {
        const proxy = enableProxy ? new ApiProxy(pluginDescriptor, hook) : null;
        const list = target.__VUE_DEVTOOLS_PLUGINS__ = target.__VUE_DEVTOOLS_PLUGINS__ || [];
        list.push({
            pluginDescriptor,
            setupFn,
            proxy
        });
        if (proxy)
            setupFn(proxy.proxiedTarget);
    }
}

const VueDevToolsLabels = {
    ["vue-devtools-plugin-vue-i18n" /* PLUGIN */]: 'Vue I18n devtools',
    ["vue-i18n-resource-inspector" /* CUSTOM_INSPECTOR */]: 'I18n Resources',
    ["vue-i18n-timeline" /* TIMELINE */]: 'Vue I18n'
};
const VueDevToolsPlaceholders = {
    ["vue-i18n-resource-inspector" /* CUSTOM_INSPECTOR */]: 'Search for scopes ...'
};
const VueDevToolsTimelineColors = {
    ["vue-i18n-timeline" /* TIMELINE */]: 0xffcd19
};

const VUE_I18N_COMPONENT_TYPES = 'vue-i18n: composer properties';
let devtoolsApi;
async function enableDevTools(app, i18n) {
    return new Promise((resolve, reject) => {
        try {
            setupDevtoolsPlugin({
                id: "vue-devtools-plugin-vue-i18n" /* PLUGIN */,
                label: VueDevToolsLabels["vue-devtools-plugin-vue-i18n" /* PLUGIN */],
                packageName: 'vue-i18n',
                homepage: 'https://vue-i18n.intlify.dev',
                logo: 'https://vue-i18n.intlify.dev/vue-i18n-devtools-logo.png',
                componentStateTypes: [VUE_I18N_COMPONENT_TYPES],
                app
            }, api => {
                devtoolsApi = api;
                api.on.visitComponentTree(({ componentInstance, treeNode }) => {
                    updateComponentTreeTags(componentInstance, treeNode, i18n);
                });
                api.on.inspectComponent(({ componentInstance, instanceData }) => {
                    if (componentInstance.vnode.el &&
                        componentInstance.vnode.el.__VUE_I18N__ &&
                        instanceData) {
                        if (i18n.mode === 'legacy') {
                            // ignore global scope on legacy mode
                            if (componentInstance.vnode.el.__VUE_I18N__ !==
                                i18n.global.__composer) {
                                inspectComposer(instanceData, componentInstance.vnode.el.__VUE_I18N__);
                            }
                        }
                        else {
                            inspectComposer(instanceData, componentInstance.vnode.el.__VUE_I18N__);
                        }
                    }
                });
                api.addInspector({
                    id: "vue-i18n-resource-inspector" /* CUSTOM_INSPECTOR */,
                    label: VueDevToolsLabels["vue-i18n-resource-inspector" /* CUSTOM_INSPECTOR */],
                    icon: 'language',
                    treeFilterPlaceholder: VueDevToolsPlaceholders["vue-i18n-resource-inspector" /* CUSTOM_INSPECTOR */]
                });
                api.on.getInspectorTree(payload => {
                    if (payload.app === app &&
                        payload.inspectorId === "vue-i18n-resource-inspector" /* CUSTOM_INSPECTOR */) {
                        registerScope(payload, i18n);
                    }
                });
                const roots = new Map();
                api.on.getInspectorState(async (payload) => {
                    if (payload.app === app &&
                        payload.inspectorId === "vue-i18n-resource-inspector" /* CUSTOM_INSPECTOR */) {
                        api.unhighlightElement();
                        inspectScope(payload, i18n);
                        if (payload.nodeId === 'global') {
                            if (!roots.has(payload.app)) {
                                const [root] = await api.getComponentInstances(payload.app);
                                roots.set(payload.app, root);
                            }
                            api.highlightElement(roots.get(payload.app));
                        }
                        else {
                            const instance = getComponentInstance(payload.nodeId, i18n);
                            instance && api.highlightElement(instance);
                        }
                    }
                });
                api.on.editInspectorState(payload => {
                    if (payload.app === app &&
                        payload.inspectorId === "vue-i18n-resource-inspector" /* CUSTOM_INSPECTOR */) {
                        editScope(payload, i18n);
                    }
                });
                api.addTimelineLayer({
                    id: "vue-i18n-timeline" /* TIMELINE */,
                    label: VueDevToolsLabels["vue-i18n-timeline" /* TIMELINE */],
                    color: VueDevToolsTimelineColors["vue-i18n-timeline" /* TIMELINE */]
                });
                resolve(true);
            });
        }
        catch (e) {
            console.error(e);
            reject(false);
        }
    });
}
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function getI18nScopeLable(instance) {
    return (instance.type.name ||
        instance.type.displayName ||
        instance.type.__file ||
        'Anonymous');
}
function updateComponentTreeTags(instance, // eslint-disable-line @typescript-eslint/no-explicit-any
treeNode, i18n) {
    // prettier-ignore
    const global = i18n.mode === 'composition'
        ? i18n.global
        : i18n.global.__composer;
    if (instance && instance.vnode.el && instance.vnode.el.__VUE_I18N__) {
        // add custom tags local scope only
        if (instance.vnode.el.__VUE_I18N__ !== global) {
            const tag = {
                label: `i18n (${getI18nScopeLable(instance)} Scope)`,
                textColor: 0x000000,
                backgroundColor: 0xffcd19
            };
            treeNode.tags.push(tag);
        }
    }
}
function inspectComposer(instanceData, composer) {
    const type = VUE_I18N_COMPONENT_TYPES;
    instanceData.state.push({
        type,
        key: 'locale',
        editable: true,
        value: composer.locale.value
    });
    instanceData.state.push({
        type,
        key: 'availableLocales',
        editable: false,
        value: composer.availableLocales
    });
    instanceData.state.push({
        type,
        key: 'fallbackLocale',
        editable: true,
        value: composer.fallbackLocale.value
    });
    instanceData.state.push({
        type,
        key: 'inheritLocale',
        editable: true,
        value: composer.inheritLocale
    });
    instanceData.state.push({
        type,
        key: 'messages',
        editable: false,
        value: getLocaleMessageValue(composer.messages.value)
    });
    {
        instanceData.state.push({
            type,
            key: 'datetimeFormats',
            editable: false,
            value: composer.datetimeFormats.value
        });
        instanceData.state.push({
            type,
            key: 'numberFormats',
            editable: false,
            value: composer.numberFormats.value
        });
    }
}
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function getLocaleMessageValue(messages) {
    const value = {};
    Object.keys(messages).forEach((key) => {
        const v = messages[key];
        if (isFunction(v) && 'source' in v) {
            value[key] = getMessageFunctionDetails(v);
        }
        else if (isObject(v)) {
            value[key] = getLocaleMessageValue(v);
        }
        else {
            value[key] = v;
        }
    });
    return value;
}
const ESC = {
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    '&': '&amp;'
};
function escape(s) {
    return s.replace(/[<>"&]/g, escapeChar);
}
function escapeChar(a) {
    return ESC[a] || a;
}
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function getMessageFunctionDetails(func) {
    const argString = func.source ? `("${escape(func.source)}")` : `(?)`;
    return {
        _custom: {
            type: 'function',
            display: `<span>ƒ</span> ${argString}`
        }
    };
}
function registerScope(payload, i18n) {
    payload.rootNodes.push({
        id: 'global',
        label: 'Global Scope'
    });
    // prettier-ignore
    const global = i18n.mode === 'composition'
        ? i18n.global
        : i18n.global.__composer;
    for (const [keyInstance, instance] of i18n.__instances) {
        // prettier-ignore
        const composer = i18n.mode === 'composition'
            ? instance
            : instance.__composer;
        if (global === composer) {
            continue;
        }
        payload.rootNodes.push({
            id: composer.id.toString(),
            label: `${getI18nScopeLable(keyInstance)} Scope`
        });
    }
}
function getComponentInstance(nodeId, i18n) {
    let instance = null;
    if (nodeId !== 'global') {
        for (const [component, composer] of i18n.__instances.entries()) {
            if (composer.id.toString() === nodeId) {
                instance = component;
                break;
            }
        }
    }
    return instance;
}
function getComposer$1(nodeId, i18n) {
    if (nodeId === 'global') {
        return i18n.mode === 'composition'
            ? i18n.global
            : i18n.global.__composer;
    }
    else {
        const instance = Array.from(i18n.__instances.values()).find(item => item.id.toString() === nodeId);
        if (instance) {
            return i18n.mode === 'composition'
                ? instance
                : instance.__composer;
        }
        else {
            return null;
        }
    }
}
function inspectScope(payload, i18n
// eslint-disable-next-line @typescript-eslint/no-explicit-any
) {
    const composer = getComposer$1(payload.nodeId, i18n);
    if (composer) {
        // TODO:
        // eslint-disable-next-line @typescript-eslint/no-explicit-any
        payload.state = makeScopeInspectState(composer);
    }
    return null;
}
function makeScopeInspectState(composer) {
    const state = {};
    const localeType = 'Locale related info';
    const localeStates = [
        {
            type: localeType,
            key: 'locale',
            editable: true,
            value: composer.locale.value
        },
        {
            type: localeType,
            key: 'fallbackLocale',
            editable: true,
            value: composer.fallbackLocale.value
        },
        {
            type: localeType,
            key: 'availableLocales',
            editable: false,
            value: composer.availableLocales
        },
        {
            type: localeType,
            key: 'inheritLocale',
            editable: true,
            value: composer.inheritLocale
        }
    ];
    state[localeType] = localeStates;
    const localeMessagesType = 'Locale messages info';
    const localeMessagesStates = [
        {
            type: localeMessagesType,
            key: 'messages',
            editable: false,
            value: getLocaleMessageValue(composer.messages.value)
        }
    ];
    state[localeMessagesType] = localeMessagesStates;
    {
        const datetimeFormatsType = 'Datetime formats info';
        const datetimeFormatsStates = [
            {
                type: datetimeFormatsType,
                key: 'datetimeFormats',
                editable: false,
                value: composer.datetimeFormats.value
            }
        ];
        state[datetimeFormatsType] = datetimeFormatsStates;
        const numberFormatsType = 'Datetime formats info';
        const numberFormatsStates = [
            {
                type: numberFormatsType,
                key: 'numberFormats',
                editable: false,
                value: composer.numberFormats.value
            }
        ];
        state[numberFormatsType] = numberFormatsStates;
    }
    return state;
}
function addTimelineEvent(event, payload) {
    if (devtoolsApi) {
        let groupId;
        if (payload && 'groupId' in payload) {
            groupId = payload.groupId;
            delete payload.groupId;
        }
        devtoolsApi.addTimelineEvent({
            layerId: "vue-i18n-timeline" /* TIMELINE */,
            event: {
                title: event,
                groupId,
                time: Date.now(),
                meta: {},
                data: payload || {},
                logType: event === "compile-error" /* COMPILE_ERROR */
                    ? 'error'
                    : event === "fallback" /* FALBACK */ ||
                        event === "missing" /* MISSING */
                        ? 'warning'
                        : 'default'
            }
        });
    }
}
function editScope(payload, i18n) {
    const composer = getComposer$1(payload.nodeId, i18n);
    if (composer) {
        const [field] = payload.path;
        if (field === 'locale' && isString(payload.state.value)) {
            composer.locale.value = payload.state.value;
        }
        else if (field === 'fallbackLocale' &&
            (isString(payload.state.value) ||
                isArray(payload.state.value) ||
                isObject(payload.state.value))) {
            composer.fallbackLocale.value = payload.state.value;
        }
        else if (field === 'inheritLocale' && isBoolean(payload.state.value)) {
            composer.inheritLocale = payload.state.value;
        }
    }
}

/**
 * Supports compatibility for legacy vue-i18n APIs
 * This mixin is used when we use vue-i18n@v9.x or later
 */
function defineMixin(vuei18n, composer, i18n) {
    return {
        beforeCreate() {
            const instance = getCurrentInstance();
            /* istanbul ignore if */
            if (!instance) {
                throw createI18nError(I18nErrorCodes.UNEXPECTED_ERROR);
            }
            const options = this.$options;
            if (options.i18n) {
                const optionsI18n = options.i18n;
                if (options.__i18n) {
                    optionsI18n.__i18n = options.__i18n;
                }
                optionsI18n.__root = composer;
                if (this === this.$root) {
                    this.$i18n = mergeToRoot(vuei18n, optionsI18n);
                }
                else {
                    optionsI18n.__injectWithOption = true;
                    this.$i18n = createVueI18n(optionsI18n);
                }
            }
            else if (options.__i18n) {
                if (this === this.$root) {
                    this.$i18n = mergeToRoot(vuei18n, options);
                }
                else {
                    this.$i18n = createVueI18n({
                        __i18n: options.__i18n,
                        __injectWithOption: true,
                        __root: composer
                    });
                }
            }
            else {
                // set global
                this.$i18n = vuei18n;
            }
            if (options.__i18nGlobal) {
                adjustI18nResources(composer, options, options);
            }
            vuei18n.__onComponentInstanceCreated(this.$i18n);
            i18n.__setInstance(instance, this.$i18n);
            // defines vue-i18n legacy APIs
            this.$t = (...args) => this.$i18n.t(...args);
            this.$rt = (...args) => this.$i18n.rt(...args);
            this.$tc = (...args) => this.$i18n.tc(...args);
            this.$te = (key, locale) => this.$i18n.te(key, locale);
            this.$d = (...args) => this.$i18n.d(...args);
            this.$n = (...args) => this.$i18n.n(...args);
            this.$tm = (key) => this.$i18n.tm(key);
        },
        mounted() {
            /* istanbul ignore if */
            {
                this.$el.__VUE_I18N__ = this.$i18n.__composer;
                const emitter = (this.__v_emitter =
                    createEmitter());
                const _vueI18n = this.$i18n;
                _vueI18n.__enableEmitter && _vueI18n.__enableEmitter(emitter);
                emitter.on('*', addTimelineEvent);
            }
        },
        unmounted() {
            const instance = getCurrentInstance();
            /* istanbul ignore if */
            if (!instance) {
                throw createI18nError(I18nErrorCodes.UNEXPECTED_ERROR);
            }
            nextTick(() => {
                /* istanbul ignore if */
                {
                    if (this.__v_emitter) {
                        this.__v_emitter.off('*', addTimelineEvent);
                        delete this.__v_emitter;
                    }
                    const _vueI18n = this.$i18n;
                    _vueI18n.__disableEmitter && _vueI18n.__disableEmitter();
                    delete this.$el.__VUE_I18N__;
                }
                delete this.$t;
                delete this.$rt;
                delete this.$tc;
                delete this.$te;
                delete this.$d;
                delete this.$n;
                delete this.$tm;
                i18n.__deleteInstance(instance);
                delete this.$i18n;
            });
        }
    };
}
function mergeToRoot(root, options) {
    root.locale = options.locale || root.locale;
    root.fallbackLocale = options.fallbackLocale || root.fallbackLocale;
    root.missing = options.missing || root.missing;
    root.silentTranslationWarn =
        options.silentTranslationWarn || root.silentFallbackWarn;
    root.silentFallbackWarn =
        options.silentFallbackWarn || root.silentFallbackWarn;
    root.formatFallbackMessages =
        options.formatFallbackMessages || root.formatFallbackMessages;
    root.postTranslation = options.postTranslation || root.postTranslation;
    root.warnHtmlInMessage = options.warnHtmlInMessage || root.warnHtmlInMessage;
    root.escapeParameterHtml =
        options.escapeParameterHtml || root.escapeParameterHtml;
    root.sync = options.sync || root.sync;
    root.__composer[SetPluralRulesSymbol](options.pluralizationRules || root.pluralizationRules);
    const messages = getLocaleMessages(root.locale, {
        messages: options.messages,
        __i18n: options.__i18n
    });
    Object.keys(messages).forEach(locale => root.mergeLocaleMessage(locale, messages[locale]));
    if (options.datetimeFormats) {
        Object.keys(options.datetimeFormats).forEach(locale => root.mergeDateTimeFormat(locale, options.datetimeFormats[locale]));
    }
    if (options.numberFormats) {
        Object.keys(options.numberFormats).forEach(locale => root.mergeNumberFormat(locale, options.numberFormats[locale]));
    }
    return root;
}

/**
 * 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) {
    // prettier-ignore
    const __legacyMode = isBoolean(options.legacy)
            ? options.legacy
            : true;
    // prettier-ignore
    const __globalInjection =  !!options.globalInjection
        ;
    const __instances = new Map();
    const __global = createGlobal(options, __legacyMode);
    const symbol = makeSymbol('vue-i18n' );
    function __getInstance(component) {
        return __instances.get(component) || null;
    }
    function __setInstance(component, instance) {
        __instances.set(component, instance);
    }
    function __deleteInstance(component) {
        __instances.delete(component);
    }
    {
        const i18n = {
            // mode
            get mode() {
                return __legacyMode
                    ? 'legacy'
                    : 'composition';
            },
            // install plugin
            async install(app, ...options) {
                {
                    app.__VUE_I18N__ = i18n;
                }
                // setup global provider
                app.__VUE_I18N_SYMBOL__ = symbol;
                app.provide(app.__VUE_I18N_SYMBOL__, i18n);
                // global method and properties injection for Composition API
                if (!__legacyMode && __globalInjection) {
                    injectGlobalFields(app, i18n.global);
                }
                // install built-in components and directive
                {
                    apply(app, i18n, ...options);
                }
                // setup mixin for Legacy API
                if (__legacyMode) {
                    app.mixin(defineMixin(__global, __global.__composer, i18n));
                }
                // setup vue-devtools plugin
                {
                    const ret = await enableDevTools(app, i18n);
                    if (!ret) {
                        throw createI18nError(I18nErrorCodes.CANNOT_SETUP_VUE_DEVTOOLS_PLUGIN);
                    }
                    const emitter = createEmitter();
                    if (__legacyMode) {
                        const _vueI18n = __global;
                        _vueI18n.__enableEmitter && _vueI18n.__enableEmitter(emitter);
                    }
                    else {
                        // eslint-disable-next-line @typescript-eslint/no-explicit-any
                        const _composer = __global;
                        _composer[EnableEmitter] && _composer[EnableEmitter](emitter);
                    }
                    emitter.on('*', addTimelineEvent);
                }
            },
            // global accessor
            get global() {
                return __global;
            },
            // @internal
            __instances,
            // @internal
            __getInstance,
            // @internal
            __setInstance,
            // @internal
            __deleteInstance
        };
        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 (!instance.isCE &&
        instance.appContext.app != null &&
        !instance.appContext.app.__VUE_I18N_SYMBOL__) {
        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') {
        // eslint-disable-next-line @typescript-eslint/no-explicit-any
        let composer = getComposer(i18n, instance, options.__useComponent);
        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);
        setupLifeCycle(i18nInternal, instance, composer);
        i18nInternal.__setInstance(instance, composer);
    }
    return composer;
}
function createGlobal(options, legacyMode, VueI18nLegacy // eslint-disable-line @typescript-eslint/no-explicit-any
) {
    {
        return legacyMode
            ? createVueI18n(options)
            : createComposer(options);
    }
}
function getI18nInstance(instance) {
    {
        const i18n = inject(!instance.isCE
            ? instance.appContext.app.__VUE_I18N_SYMBOL__
            : I18nInjectionKey);
        /* istanbul ignore if */
        if (!i18n) {
            throw createI18nError(!instance.isCE
                ? I18nErrorCodes.UNEXPECTED_ERROR
                : I18nErrorCodes.NOT_INSLALLED_WITH_PROVIDE);
        }
        return i18n;
    }
}
// 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.mode === 'composition'
            ? i18n.global
            : i18n.global.__composer
        ;
}
function getComposer(i18n, target, useComponent = false) {
    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 (useComponent &&
                        composer &&
                        !composer[InejctWithOption] // eslint-disable-line @typescript-eslint/no-explicit-any
                    ) {
                        composer = null;
                    }
                }
            }
        }
        if (composer != null) {
            break;
        }
        if (root === current) {
            break;
        }
        current = current.parent;
    }
    return composer;
}
function setupLifeCycle(i18n, target, composer) {
    let emitter = null;
    {
        onMounted(() => {
            // inject composer instance to DOM for intlify-devtools
            if (target.vnode.el) {
                target.vnode.el.__VUE_I18N__ = composer;
                emitter = createEmitter();
                // eslint-disable-next-line @typescript-eslint/no-explicit-any
                const _composer = composer;
                _composer[EnableEmitter] && _composer[EnableEmitter](emitter);
                emitter.on('*', addTimelineEvent);
            }
        }, target);
        onUnmounted(() => {
            // remove composer instance from DOM for intlify-devtools
            if (target.vnode.el &&
                target.vnode.el.__VUE_I18N__) {
                emitter && emitter.off('*', addTimelineEvent);
                // eslint-disable-next-line @typescript-eslint/no-explicit-any
                const _composer = composer;
                _composer[DisableEmitter] && _composer[DisableEmitter]();
                delete target.vnode.el.__VUE_I18N__;
            }
            i18n.__deleteInstance(target);
        }, target);
    }
}
const globalExportProps = [
    'locale',
    'fallbackLocale',
    'availableLocales'
];
const globalExportMethods = ['t', 'rt', 'd', 'n', 'tm'] ;
function injectGlobalFields(app, composer) {
    const i18n = Object.create(null);
    globalExportProps.forEach(prop => {
        const desc = Object.getOwnPropertyDescriptor(composer, prop);
        if (!desc) {
            throw createI18nError(I18nErrorCodes.UNEXPECTED_ERROR);
        }
        const wrap = isRef(desc.value) // check computed props
            ? {
                get() {
                    return desc.value.value;
                },
                // eslint-disable-next-line @typescript-eslint/no-explicit-any
                set(val) {
                    desc.value.value = val;
                }
            }
            : {
                get() {
                    return desc.get && desc.get();
                }
            };
        Object.defineProperty(i18n, prop, wrap);
    });
    app.config.globalProperties.$i18n = i18n;
    globalExportMethods.forEach(method => {
        const desc = Object.getOwnPropertyDescriptor(composer, method);
        if (!desc || !desc.value) {
            throw createI18nError(I18nErrorCodes.UNEXPECTED_ERROR);
        }
        Object.defineProperty(app.config.globalProperties, `$${method}`, desc);
    });
}

// register message compiler at vue-i18n
registerMessageCompiler(compileToFunction);
// 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 { DatetimeFormat, I18nInjectionKey, NumberFormat, Translation, VERSION, createI18n, useI18n, vTDirective };
