
// We are modularizing this manually because the current modularize setting in Emscripten has some issues:
// https://github.com/kripken/emscripten/issues/5820
// In addition, When you use emcc's modularization, it still expects to export a global object called `Module`,
// which is able to be used/called before the WASM is loaded.
// The modularization below exports a promise that loads and resolves to the actual sql.js module.
// That way, this module can't be used before the WASM is finished loading.

// We are going to define a function that a user will call to start loading initializing our Sql.js library
// However, that function might be called multiple times, and on subsequent calls, we don't actually want it to instantiate a new instance of the Module
// Instead, we want to return the previously loaded module

// TODO: Make this not declare a global if used in the browser
var initSqlJsPromise = undefined;

var initSqlJs = function (moduleConfig) {

    if (initSqlJsPromise){
      return initSqlJsPromise;
    }
    // If we're here, we've never called this function before
    initSqlJsPromise = new Promise(function (resolveModule, reject) {

        // We are modularizing this manually because the current modularize setting in Emscripten has some issues:
        // https://github.com/kripken/emscripten/issues/5820

        // The way to affect the loading of emcc compiled modules is to create a variable called `Module` and add
        // properties to it, like `preRun`, `postRun`, etc
        // We are using that to get notified when the WASM has finished loading.
        // Only then will we return our promise

        // If they passed in a moduleConfig object, use that
        // Otherwise, initialize Module to the empty object
        var Module = typeof moduleConfig !== 'undefined' ? moduleConfig : {};

        // EMCC only allows for a single onAbort function (not an array of functions)
        // So if the user defined their own onAbort function, we remember it and call it
        var originalOnAbortFunction = Module['onAbort'];
        Module['onAbort'] = function (errorThatCausedAbort) {
            reject(new Error(errorThatCausedAbort));
            if (originalOnAbortFunction){
              originalOnAbortFunction(errorThatCausedAbort);
            }
        };

        Module['postRun'] = Module['postRun'] || [];
        Module['postRun'].push(function () {
            // When Emscripted calls postRun, this promise resolves with the built Module
            resolveModule(Module);
        });

        // There is a section of code in the emcc-generated code below that looks like this:
        // (Note that this is lowercase `module`)
        // if (typeof module !== 'undefined') {
        //     module['exports'] = Module;
        // }
        // When that runs, it's going to overwrite our own modularization export efforts in shell-post.js!
        // The only way to tell emcc not to emit it is to pass the MODULARIZE=1 or MODULARIZE_INSTANCE=1 flags,
        // but that carries with it additional unnecessary baggage/bugs we don't want either.
        // So, we have three options:
        // 1) We undefine `module`
        // 2) We remember what `module['exports']` was at the beginning of this function and we restore it later
        // 3) We write a script to remove those lines of code as part of the Make process.
        //
        // Since those are the only lines of code that care about module, we will undefine it. It's the most straightforward
        // of the options, and has the side effect of reducing emcc's efforts to modify the module if its output were to change in the future.
        // That's a nice side effect since we're handling the modularization efforts ourselves
        module = undefined;

        // The emcc-generated code and shell-post.js code goes below,
        // meaning that all of it runs inside of this promise. If anything throws an exception, our promise will abort
// include: shell.js
// The Module object: Our interface to the outside world. We import
// and export values on it. There are various ways Module can be used:
// 1. Not defined. We create it here
// 2. A function parameter, function(moduleArg) => Promise<Module>
// 3. pre-run appended it, var Module = {}; ..generated code..
// 4. External script tag defines var Module.
// We need to check if Module already exists (e.g. case 3 above).
// Substitution will be replaced with actual code on later stage of the build,
// this way Closure Compiler will not mangle it (e.g. case 4. above).
// Note that if you want to run closure, and also to use Module
// after the generated code, you will need to define   var Module = {};
// before the code. Then that object will be used in the code, and you
// can continue to use Module afterwards as well.
var Module = typeof Module != 'undefined' ? Module : {};

// Determine the runtime environment we are in. You can customize this by
// setting the ENVIRONMENT setting at compile time (see settings.js).

// Attempt to auto-detect the environment
var ENVIRONMENT_IS_WEB = typeof window == 'object';
var ENVIRONMENT_IS_WORKER = typeof WorkerGlobalScope != 'undefined';
// N.b. Electron.js environment is simultaneously a NODE-environment, but
// also a web environment.
var ENVIRONMENT_IS_NODE = typeof process == 'object' && typeof process.versions == 'object' && typeof process.versions.node == 'string' && process.type != 'renderer';
var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;

if (ENVIRONMENT_IS_NODE) {

}

// --pre-jses are emitted after the Module integration code, so that they can
// refer to Module (if they choose; they can also define Module)
// include: src/api.js
/* global
    FS
    HEAP8
    Module
    _malloc
    _free
    getValue
    intArrayFromString
    setValue
    stackAlloc
    stackRestore
    stackSave
    UTF8ToString
    stringToUTF8
    lengthBytesUTF8
    allocate
    ALLOC_NORMAL
    allocateUTF8OnStack
    removeFunction
    addFunction
*/

"use strict";

/**
 * @typedef {{Database:Database, Statement:Statement}} SqlJs
 * @property {Database} Database A class that represents an SQLite database
 * @property {Statement} Statement The prepared statement class
 */

/**
 * @typedef {{locateFile:function(string):string}} SqlJsConfig
 * @property {function(string):string} locateFile
 * a function that returns the full path to a resource given its file name
 * @see https://emscripten.org/docs/api_reference/module.html
 */

/**
 * Asynchronously initializes sql.js
 * @function initSqlJs
 * @param {SqlJsConfig} config module inititialization parameters
 * @returns {SqlJs}
 * @example
 * initSqlJs({
 *  locateFile: name => '/path/to/assets/' + name
 * }).then(SQL => {
 *  const db = new SQL.Database();
 *  const result = db.exec("select 'hello world'");
 *  console.log(result);
 * })
 */

/**
 * @module SqlJs
 */
// Wait for preRun to run, and then finish our initialization
Module["onRuntimeInitialized"] = function onRuntimeInitialized() {
    // Declare toplevel variables
    // register, used for temporary stack values
    var apiTemp = stackAlloc(4);
    var cwrap = Module["cwrap"];
    // Null pointer
    var NULL = 0;
    // SQLite enum
    var SQLITE_OK = 0;
    var SQLITE_ROW = 100;
    var SQLITE_DONE = 101;
    var SQLITE_INTEGER = 1;
    var SQLITE_FLOAT = 2;
    var SQLITE_TEXT = 3;
    var SQLITE_BLOB = 4;
    // var - Encodings, used for registering functions.
    var SQLITE_UTF8 = 1;
    // var - Authorizer Action Codes used to identify change types in updateHook
    var SQLITE_INSERT = 18;
    var SQLITE_UPDATE = 23;
    var SQLITE_DELETE = 9;
    // var - cwrap function
    var sqlite3_open = cwrap("sqlite3_open", "number", ["string", "number"]);
    var sqlite3_close_v2 = cwrap("sqlite3_close_v2", "number", ["number"]);
    var sqlite3_exec = cwrap(
        "sqlite3_exec",
        "number",
        ["number", "string", "number", "number", "number"]
    );
    var sqlite3_changes = cwrap("sqlite3_changes", "number", ["number"]);
    var sqlite3_prepare_v2 = cwrap(
        "sqlite3_prepare_v2",
        "number",
        ["number", "string", "number", "number", "number"]
    );
    var sqlite3_sql = cwrap("sqlite3_sql", "string", ["number"]);
    var sqlite3_normalized_sql = cwrap(
        "sqlite3_normalized_sql",
        "string",
        ["number"]
    );
    var sqlite3_prepare_v2_sqlptr = cwrap(
        "sqlite3_prepare_v2",
        "number",
        ["number", "number", "number", "number", "number"]
    );
    var sqlite3_bind_text = cwrap(
        "sqlite3_bind_text",
        "number",
        ["number", "number", "number", "number", "number"]
    );
    var sqlite3_bind_blob = cwrap(
        "sqlite3_bind_blob",
        "number",
        ["number", "number", "number", "number", "number"]
    );
    var sqlite3_bind_double = cwrap(
        "sqlite3_bind_double",
        "number",
        ["number", "number", "number"]
    );
    var sqlite3_bind_int = cwrap(
        "sqlite3_bind_int",
        "number",
        ["number", "number", "number"]
    );

    var sqlite3_bind_parameter_index = cwrap(
        "sqlite3_bind_parameter_index",
        "number",
        ["number", "string"]
    );
    var sqlite3_step = cwrap("sqlite3_step", "number", ["number"]);
    var sqlite3_errmsg = cwrap("sqlite3_errmsg", "string", ["number"]);
    var sqlite3_column_count = cwrap(
        "sqlite3_column_count",
        "number",
        ["number"]
    );
    var sqlite3_data_count = cwrap("sqlite3_data_count", "number", ["number"]);
    var sqlite3_column_double = cwrap(
        "sqlite3_column_double",
        "number",
        ["number", "number"]
    );
    var sqlite3_column_text = cwrap(
        "sqlite3_column_text",
        "string",
        ["number", "number"]
    );
    var sqlite3_column_blob = cwrap(
        "sqlite3_column_blob",
        "number",
        ["number", "number"]
    );
    var sqlite3_column_bytes = cwrap(
        "sqlite3_column_bytes",
        "number",
        ["number", "number"]
    );
    var sqlite3_column_type = cwrap(
        "sqlite3_column_type",
        "number",
        ["number", "number"]
    );
    var sqlite3_column_name = cwrap(
        "sqlite3_column_name",
        "string",
        ["number", "number"]
    );
    var sqlite3_reset = cwrap("sqlite3_reset", "number", ["number"]);
    var sqlite3_clear_bindings = cwrap(
        "sqlite3_clear_bindings",
        "number",
        ["number"]
    );
    var sqlite3_finalize = cwrap("sqlite3_finalize", "number", ["number"]);
    var sqlite3_create_function_v2 = cwrap(
        "sqlite3_create_function_v2",
        "number",
        [
            "number",
            "string",
            "number",
            "number",
            "number",
            "number",
            "number",
            "number",
            "number"
        ]
    );
    var sqlite3_value_type = cwrap("sqlite3_value_type", "number", ["number"]);
    var sqlite3_value_bytes = cwrap(
        "sqlite3_value_bytes",
        "number",
        ["number"]
    );
    var sqlite3_value_text = cwrap("sqlite3_value_text", "string", ["number"]);
    var sqlite3_value_blob = cwrap("sqlite3_value_blob", "number", ["number"]);
    var sqlite3_value_double = cwrap(
        "sqlite3_value_double",
        "number",
        ["number"]
    );
    var sqlite3_result_double = cwrap(
        "sqlite3_result_double",
        "",
        ["number", "number"]
    );
    var sqlite3_result_null = cwrap(
        "sqlite3_result_null",
        "",
        ["number"]
    );
    var sqlite3_result_text = cwrap(
        "sqlite3_result_text",
        "",
        ["number", "string", "number", "number"]
    );
    var sqlite3_result_blob = cwrap(
        "sqlite3_result_blob",
        "",
        ["number", "number", "number", "number"]
    );
    var sqlite3_result_int = cwrap(
        "sqlite3_result_int",
        "",
        ["number", "number"]
    );
    var sqlite3_result_error = cwrap(
        "sqlite3_result_error",
        "",
        ["number", "string", "number"]
    );

    // https://www.sqlite.org/c3ref/aggregate_context.html
    // void *sqlite3_aggregate_context(sqlite3_context*, int nBytes)
    var sqlite3_aggregate_context = cwrap(
        "sqlite3_aggregate_context",
        "number",
        ["number", "number"]
    );
    var registerExtensionFunctions = cwrap(
        "RegisterExtensionFunctions",
        "number",
        ["number"]
    );

    var sqlite3_update_hook = cwrap(
        "sqlite3_update_hook",
        "number",
        ["number", "number", "number"]
    );

    /**
    * @classdesc
    * Represents a prepared statement.
    * Prepared statements allow you to have a template sql string,
    * that you can execute multiple times with different parameters.
    *
    * You can't instantiate this class directly, you have to use a
    * {@link Database} object in order to create a statement.
    *
    * **Warnings**
    * 1. When you close a database (using db.close()), all
    * its statements are closed too and become unusable.
    * 1. After calling db.prepare() you must manually free the assigned memory
    * by calling Statement.free(). Failure to do this will cause subsequent
    * 'DROP TABLE ...' statements to fail with 'Uncaught Error: database table
    * is locked'.
    *
    * Statements can't be created by the API user directly, only by
    * Database::prepare
    *
    * @see Database.html#prepare-dynamic
    * @see https://en.wikipedia.org/wiki/Prepared_statement
    *
    * @constructs Statement
    * @memberof module:SqlJs
    * @param {number} stmt1 The SQLite statement reference
    * @param {Database} db The database from which this statement was created
     */
    function Statement(stmt1, db) {
        this.stmt = stmt1;
        this.db = db;
        // Index of the leftmost parameter is 1
        this.pos = 1;
        // Pointers to allocated memory, that need to be freed
        // when the statemend is destroyed
        this.allocatedmem = [];
    }

    /** @typedef {string|number|null|Uint8Array} Database.SqlValue */
    /** @typedef {
        Array<Database.SqlValue>|Object<string, Database.SqlValue>|null
    } Statement.BindParams
     */

    /** Bind values to the parameters, after having reseted the statement.
    * If values is null, do nothing and return true.
    *
    * SQL statements can have parameters,
    * named *'?', '?NNN', ':VVV', '@VVV', '$VVV'*,
    * where NNN is a number and VVV a string.
    * This function binds these parameters to the given values.
    *
    * *Warning*: ':', '@', and '$' are included in the parameters names
    *
    * ## Value types
    * Javascript type  | SQLite type
    * -----------------| -----------
    * number           | REAL, INTEGER
    * boolean          | INTEGER
    * string           | TEXT
    * Array, Uint8Array| BLOB
    * null             | NULL
    *
    * @example <caption>Bind values to named parameters</caption>
    *     var stmt = db.prepare(
    *         "UPDATE test SET a=@newval WHERE id BETWEEN $mini AND $maxi"
    *     );
    *     stmt.bind({$mini:10, $maxi:20, '@newval':5});
    *
    * @example <caption>Bind values to anonymous parameters</caption>
    * // Create a statement that contains parameters like '?', '?NNN'
    * var stmt = db.prepare("UPDATE test SET a=? WHERE id BETWEEN ? AND ?");
    * // Call Statement.bind with an array as parameter
    * stmt.bind([5, 10, 20]);
    *
    * @see http://www.sqlite.org/datatype3.html
    * @see http://www.sqlite.org/lang_expr.html#varparam

    * @param {Statement.BindParams} values The values to bind
    * @return {boolean} true if it worked
    * @throws {String} SQLite Error
    */
    Statement.prototype["bind"] = function bind(values) {
        if (!this.stmt) {
            throw "Statement closed";
        }
        this["reset"]();
        if (Array.isArray(values)) return this.bindFromArray(values);
        if (values != null && typeof values === "object") {
            return this.bindFromObject(values);
        }
        return true;
    };

    /** Execute the statement, fetching the the next line of result,
    that can be retrieved with {@link Statement.get}.

    @return {boolean} true if a row of result available
    @throws {String} SQLite Error
     */
    Statement.prototype["step"] = function step() {
        if (!this.stmt) {
            throw "Statement closed";
        }
        this.pos = 1;
        var ret = sqlite3_step(this.stmt);
        switch (ret) {
            case SQLITE_ROW:
                return true;
            case SQLITE_DONE:
                return false;
            default:
                throw this.db.handleError(ret);
        }
    };

    /*
    Internal methods to retrieve data from the results of a statement
    that has been executed
     */
    Statement.prototype.getNumber = function getNumber(pos) {
        if (pos == null) {
            pos = this.pos;
            this.pos += 1;
        }
        return sqlite3_column_double(this.stmt, pos);
    };

    Statement.prototype.getBigInt = function getBigInt(pos) {
        if (pos == null) {
            pos = this.pos;
            this.pos += 1;
        }
        var text = sqlite3_column_text(this.stmt, pos);
        if (typeof BigInt !== "function") {
            throw new Error("BigInt is not supported");
        }
        /* global BigInt */
        return BigInt(text);
    };

    Statement.prototype.getString = function getString(pos) {
        if (pos == null) {
            pos = this.pos;
            this.pos += 1;
        }
        return sqlite3_column_text(this.stmt, pos);
    };

    Statement.prototype.getBlob = function getBlob(pos) {
        if (pos == null) {
            pos = this.pos;
            this.pos += 1;
        }
        var size = sqlite3_column_bytes(this.stmt, pos);
        var ptr = sqlite3_column_blob(this.stmt, pos);
        var result = new Uint8Array(size);
        for (var i = 0; i < size; i += 1) {
            result[i] = HEAP8[ptr + i];
        }
        return result;
    };

    /** Get one row of results of a statement.
    If the first parameter is not provided, step must have been called before.
    @param {Statement.BindParams} [params] If set, the values will be bound
    to the statement before it is executed
    @return {Array<Database.SqlValue>} One row of result

    @example
    <caption>Print all the rows of the table test to the console</caption>
    var stmt = db.prepare("SELECT * FROM test");
    while (stmt.step()) console.log(stmt.get());

    <caption>Enable BigInt support</caption>
    var stmt = db.prepare("SELECT * FROM test");
    while (stmt.step()) console.log(stmt.get(null, {useBigInt: true}));
     */
    Statement.prototype["get"] = function get(params, config) {
        config = config || {};
        if (params != null && this["bind"](params)) {
            this["step"]();
        }
        var results1 = [];
        var ref = sqlite3_data_count(this.stmt);
        for (var field = 0; field < ref; field += 1) {
            switch (sqlite3_column_type(this.stmt, field)) {
                case SQLITE_INTEGER:
                    var getfunc = config["useBigInt"]
                        ? this.getBigInt(field)
                        : this.getNumber(field);
                    results1.push(getfunc);
                    break;
                case SQLITE_FLOAT:
                    results1.push(this.getNumber(field));
                    break;
                case SQLITE_TEXT:
                    results1.push(this.getString(field));
                    break;
                case SQLITE_BLOB:
                    results1.push(this.getBlob(field));
                    break;
                default:
                    results1.push(null);
            }
        }
        return results1;
    };

    /** Get the list of column names of a row of result of a statement.
    @return {Array<string>} The names of the columns
    @example
    var stmt = db.prepare(
        "SELECT 5 AS nbr, x'616200' AS data, NULL AS null_value;"
    );
    stmt.step(); // Execute the statement
    console.log(stmt.getColumnNames());
    // Will print ['nbr','data','null_value']
     */
    Statement.prototype["getColumnNames"] = function getColumnNames() {
        var results1 = [];
        var ref = sqlite3_column_count(this.stmt);
        for (var i = 0; i < ref; i += 1) {
            results1.push(sqlite3_column_name(this.stmt, i));
        }
        return results1;
    };

    /** Get one row of result as a javascript object, associating column names
    with their value in the current row.
    @param {Statement.BindParams} [params] If set, the values will be bound
    to the statement, and it will be executed
    @return {Object<string, Database.SqlValue>} The row of result
    @see {@link Statement.get}

    @example

        var stmt = db.prepare(
            "SELECT 5 AS nbr, x'010203' AS data, NULL AS null_value;"
        );
        stmt.step(); // Execute the statement
        console.log(stmt.getAsObject());
        // Will print {nbr:5, data: Uint8Array([1,2,3]), null_value:null}
     */
    Statement.prototype["getAsObject"] = function getAsObject(params, config) {
        var values = this["get"](params, config);
        var names = this["getColumnNames"]();
        var rowObject = {};
        for (var i = 0; i < names.length; i += 1) {
            var name = names[i];
            rowObject[name] = values[i];
        }
        return rowObject;
    };

    /** Get the SQL string used in preparing this statement.
     @return {string} The SQL string
     */
    Statement.prototype["getSQL"] = function getSQL() {
        return sqlite3_sql(this.stmt);
    };

    /** Get the SQLite's normalized version of the SQL string used in
    preparing this statement.  The meaning of "normalized" is not
    well-defined: see {@link https://sqlite.org/c3ref/expanded_sql.html
    the SQLite documentation}.

     @example
     db.run("create table test (x integer);");
     stmt = db.prepare("select * from test where x = 42");
     // returns "SELECT*FROM test WHERE x=?;"

     @return {string} The normalized SQL string
     */
    Statement.prototype["getNormalizedSQL"] = function getNormalizedSQL() {
        return sqlite3_normalized_sql(this.stmt);
    };

    /** Shorthand for bind + step + reset
    Bind the values, execute the statement, ignoring the rows it returns,
    and resets it
    @param {Statement.BindParams} [values] Value to bind to the statement
     */
    Statement.prototype["run"] = function run(values) {
        if (values != null) {
            this["bind"](values);
        }
        this["step"]();
        return this["reset"]();
    };

    Statement.prototype.bindString = function bindString(string, pos) {
        if (pos == null) {
            pos = this.pos;
            this.pos += 1;
        }
        var bytes = intArrayFromString(string);
        var strptr = allocate(bytes, ALLOC_NORMAL);
        this.allocatedmem.push(strptr);
        this.db.handleError(sqlite3_bind_text(
            this.stmt,
            pos,
            strptr,
            bytes.length - 1,
            0
        ));
        return true;
    };

    Statement.prototype.bindBlob = function bindBlob(array, pos) {
        if (pos == null) {
            pos = this.pos;
            this.pos += 1;
        }
        var blobptr = allocate(array, ALLOC_NORMAL);
        this.allocatedmem.push(blobptr);
        this.db.handleError(sqlite3_bind_blob(
            this.stmt,
            pos,
            blobptr,
            array.length,
            0
        ));
        return true;
    };

    Statement.prototype.bindNumber = function bindNumber(num, pos) {
        if (pos == null) {
            pos = this.pos;
            this.pos += 1;
        }
        var bindfunc = (
            num === (num | 0)
                ? sqlite3_bind_int
                : sqlite3_bind_double
        );
        this.db.handleError(bindfunc(this.stmt, pos, num));
        return true;
    };

    Statement.prototype.bindNull = function bindNull(pos) {
        if (pos == null) {
            pos = this.pos;
            this.pos += 1;
        }
        return sqlite3_bind_blob(this.stmt, pos, 0, 0, 0) === SQLITE_OK;
    };

    Statement.prototype.bindValue = function bindValue(val, pos) {
        if (pos == null) {
            pos = this.pos;
            this.pos += 1;
        }

        switch (typeof val) {
            case "string":
                return this.bindString(val, pos);
            case "number":
                return this.bindNumber(val + 0, pos);
            case "bigint":
                // BigInt is not fully supported yet at WASM level.
                return this.bindString(val.toString(), pos);
            case "boolean":
                return this.bindNumber(val + 0, pos);
            case "object":
                if (val === null) {
                    return this.bindNull(pos);
                }
                if (val.length != null) {
                    return this.bindBlob(val, pos);
                }
                break;
            default:
                break;
        }
        throw (
            "Wrong API use : tried to bind a value of an unknown type ("
            + val + ")."
        );
    };

    /** Bind names and values of an object to the named parameters of the
    statement
    @param {Object<string, Database.SqlValue>} valuesObj
    @private
    @nodoc
     */
    Statement.prototype.bindFromObject = function bindFromObject(valuesObj) {
        var that = this;
        Object.keys(valuesObj).forEach(function each(name) {
            var num = sqlite3_bind_parameter_index(that.stmt, name);
            if (num !== 0) {
                that.bindValue(valuesObj[name], num);
            }
        });
        return true;
    };

    /** Bind values to numbered parameters
    @param {Array<Database.SqlValue>} values
    @private
    @nodoc
     */
    Statement.prototype.bindFromArray = function bindFromArray(values) {
        for (var num = 0; num < values.length; num += 1) {
            this.bindValue(values[num], num + 1);
        }
        return true;
    };

    /** Reset a statement, so that its parameters can be bound to new values
    It also clears all previous bindings, freeing the memory used
    by bound parameters.
     */
    Statement.prototype["reset"] = function reset() {
        this["freemem"]();
        return (
            sqlite3_clear_bindings(this.stmt) === SQLITE_OK
            && sqlite3_reset(this.stmt) === SQLITE_OK
        );
    };

    /** Free the memory allocated during parameter binding */
    Statement.prototype["freemem"] = function freemem() {
        var mem;
        while ((mem = this.allocatedmem.pop()) !== undefined) {
            _free(mem);
        }
    };

    /** Free the memory used by the statement
    @return {boolean} true in case of success
     */
    Statement.prototype["free"] = function free() {
        var res;
        this["freemem"]();
        res = sqlite3_finalize(this.stmt) === SQLITE_OK;
        delete this.db.statements[this.stmt];
        this.stmt = NULL;
        return res;
    };

    /**
     * @classdesc
     * An iterator over multiple SQL statements in a string,
     * preparing and returning a Statement object for the next SQL
     * statement on each iteration.
     *
     * You can't instantiate this class directly, you have to use a
     * {@link Database} object in order to create a statement iterator
     *
     * {@see Database#iterateStatements}
     *
     * @example
     * // loop over and execute statements in string sql
     * for (let statement of db.iterateStatements(sql) {
     *     statement.step();
     *     // get results, etc.
     *     // do not call statement.free() manually, each statement is freed
     *     // before the next one is parsed
     * }
     *
     * // capture any bad query exceptions with feedback
     * // on the bad sql
     * let it = db.iterateStatements(sql);
     * try {
     *     for (let statement of it) {
     *         statement.step();
     *     }
     * } catch(e) {
     *     console.log(
     *         `The SQL string "${it.getRemainingSQL()}" ` +
     *         `contains the following error: ${e}`
     *     );
     * }
     *
     * @implements {Iterator<Statement>}
     * @implements {Iterable<Statement>}
     * @constructs StatementIterator
     * @memberof module:SqlJs
     * @param {string} sql A string containing multiple SQL statements
     * @param {Database} db The database from which this iterator was created
     */
    function StatementIterator(sql, db) {
        this.db = db;
        var sz = lengthBytesUTF8(sql) + 1;
        this.sqlPtr = _malloc(sz);
        if (this.sqlPtr === null) {
            throw new Error("Unable to allocate memory for the SQL string");
        }
        stringToUTF8(sql, this.sqlPtr, sz);
        this.nextSqlPtr = this.sqlPtr;
        this.nextSqlString = null;
        this.activeStatement = null;
    }

    /**
     * @typedef {{ done:true, value:undefined } |
     *           { done:false, value:Statement}}
     *           StatementIterator.StatementIteratorResult
     * @property {Statement} value the next available Statement
     * (as returned by {@link Database.prepare})
     * @property {boolean} done true if there are no more available statements
     */

    /** Prepare the next available SQL statement
     @return {StatementIterator.StatementIteratorResult}
     @throws {String} SQLite error or invalid iterator error
     */
    StatementIterator.prototype["next"] = function next() {
        if (this.sqlPtr === null) {
            return { done: true };
        }
        if (this.activeStatement !== null) {
            this.activeStatement["free"]();
            this.activeStatement = null;
        }
        if (!this.db.db) {
            this.finalize();
            throw new Error("Database closed");
        }
        var stack = stackSave();
        var pzTail = stackAlloc(4);
        setValue(apiTemp, 0, "i32");
        setValue(pzTail, 0, "i32");
        try {
            this.db.handleError(sqlite3_prepare_v2_sqlptr(
                this.db.db,
                this.nextSqlPtr,
                -1,
                apiTemp,
                pzTail
            ));
            this.nextSqlPtr = getValue(pzTail, "i32");
            var pStmt = getValue(apiTemp, "i32");
            if (pStmt === NULL) {
                this.finalize();
                return { done: true };
            }
            this.activeStatement = new Statement(pStmt, this.db);
            this.db.statements[pStmt] = this.activeStatement;
            return { value: this.activeStatement, done: false };
        } catch (e) {
            this.nextSqlString = UTF8ToString(this.nextSqlPtr);
            this.finalize();
            throw e;
        } finally {
            stackRestore(stack);
        }
    };

    StatementIterator.prototype.finalize = function finalize() {
        _free(this.sqlPtr);
        this.sqlPtr = null;
    };

    /** Get any un-executed portions remaining of the original SQL string
     @return {String}
     */
    StatementIterator.prototype["getRemainingSQL"] = function getRemainder() {
        // iff an exception occurred, we set the nextSqlString
        if (this.nextSqlString !== null) return this.nextSqlString;
        // otherwise, convert from nextSqlPtr
        return UTF8ToString(this.nextSqlPtr);
    };

    /* implement Iterable interface */

    if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
        StatementIterator.prototype[Symbol.iterator] = function iterator() {
            return this;
        };
    }

    /** @classdesc
    * Represents an SQLite database
    * @constructs Database
    * @memberof module:SqlJs
    * Open a new database either by creating a new one or opening an existing
    * one stored in the byte array passed in first argument
    * @param {Array<number>} data An array of bytes representing
    * an SQLite database file
    */
    function Database(data) {
        this.filename = "dbfile_" + (0xffffffff * Math.random() >>> 0);
        if (data != null) {
            FS.createDataFile("/", this.filename, data, true, true);
        }
        this.handleError(sqlite3_open(this.filename, apiTemp));
        this.db = getValue(apiTemp, "i32");
        registerExtensionFunctions(this.db);
        // A list of all prepared statements of the database
        this.statements = {};
        // A list of all user function of the database
        // (created by create_function call)
        this.functions = {};
    }

    /** Execute an SQL query, ignoring the rows it returns.
    @param {string} sql a string containing some SQL text to execute
    @param {Statement.BindParams} [params] When the SQL statement contains
    placeholders, you can pass them in here. They will be bound to the statement
    before it is executed. If you use the params argument, you **cannot**
    provide an sql string that contains several statements (separated by `;`)

    @example
    // Insert values in a table
    db.run(
        "INSERT INTO test VALUES (:age, :name)",
        { ':age' : 18, ':name' : 'John' }
    );

    @return {Database} The database object (useful for method chaining)
     */
    Database.prototype["run"] = function run(sql, params) {
        if (!this.db) {
            throw "Database closed";
        }
        if (params) {
            var stmt = this["prepare"](sql, params);
            try {
                stmt["step"]();
            } finally {
                stmt["free"]();
            }
        } else {
            this.handleError(sqlite3_exec(this.db, sql, 0, 0, apiTemp));
        }
        return this;
    };

    /**
     * @typedef {{
        columns:Array<string>,
        values:Array<Array<Database.SqlValue>>
    }} Database.QueryExecResult
     * @property {Array<string>} columns the name of the columns of the result
     * (as returned by {@link Statement.getColumnNames})
     * @property {
     *  Array<Array<Database.SqlValue>>
     * } values one array per row, containing
     * the column values
     */

    /** Execute an SQL query, and returns the result.
    *
    * This is a wrapper against
    * {@link Database.prepare},
    * {@link Statement.bind},
    * {@link Statement.step},
    * {@link Statement.get},
    * and {@link Statement.free}.
    *
    * The result is an array of result elements. There are as many result
    * elements as the number of statements in your sql string (statements are
    * separated by a semicolon)
    *
    * ## Example use
    * We will create the following table, named *test* and query it with a
    * multi-line statement using params:
    *
    * | id | age |  name  |
    * |:--:|:---:|:------:|
    * | 1  |  1  | Ling   |
    * | 2  |  18 | Paul   |
    *
    * We query it like that:
    * ```javascript
    * var db = new SQL.Database();
    * var res = db.exec(
    *     "DROP TABLE IF EXISTS test;\n"
    *     + "CREATE TABLE test (id INTEGER, age INTEGER, name TEXT);"
    *     + "INSERT INTO test VALUES ($id1, :age1, @name1);"
    *     + "INSERT INTO test VALUES ($id2, :age2, @name2);"
    *     + "SELECT id FROM test;"
    *     + "SELECT age,name FROM test WHERE id=$id1",
    *     {
    *         "$id1": 1, ":age1": 1, "@name1": "Ling",
    *         "$id2": 2, ":age2": 18, "@name2": "Paul"
    *     }
    * );
    * ```
    *
    * `res` is now :
    * ```javascript
    *     [
    *         {"columns":["id"],"values":[[1],[2]]},
    *         {"columns":["age","name"],"values":[[1,"Ling"]]}
    *     ]
    * ```
    *
    @param {string} sql a string containing some SQL text to execute
    @param {Statement.BindParams} [params] When the SQL statement contains
    placeholders, you can pass them in here. They will be bound to the statement
    before it is executed. If you use the params argument as an array,
    you **cannot** provide an sql string that contains several statements
    (separated by `;`). This limitation does not apply to params as an object.
    * @return {Array<Database.QueryExecResult>} The results of each statement
    */
    Database.prototype["exec"] = function exec(sql, params, config) {
        if (!this.db) {
            throw "Database closed";
        }
        var stack = stackSave();
        var stmt = null;
        try {
            var nextSqlPtr = allocateUTF8OnStack(sql);
            var pzTail = stackAlloc(4);
            var results = [];
            while (getValue(nextSqlPtr, "i8") !== NULL) {
                setValue(apiTemp, 0, "i32");
                setValue(pzTail, 0, "i32");
                this.handleError(sqlite3_prepare_v2_sqlptr(
                    this.db,
                    nextSqlPtr,
                    -1,
                    apiTemp,
                    pzTail
                ));
                // pointer to a statement, or null
                var pStmt = getValue(apiTemp, "i32");
                nextSqlPtr = getValue(pzTail, "i32");
                // Empty statement
                if (pStmt !== NULL) {
                    var curresult = null;
                    stmt = new Statement(pStmt, this);
                    if (params != null) {
                        stmt.bind(params);
                    }
                    while (stmt["step"]()) {
                        if (curresult === null) {
                            curresult = {
                                columns: stmt["getColumnNames"](),
                                values: [],
                            };
                            results.push(curresult);
                        }
                        curresult["values"].push(stmt["get"](null, config));
                    }
                    stmt["free"]();
                }
            }
            return results;
        } catch (errCaught) {
            if (stmt) stmt["free"]();
            throw errCaught;
        } finally {
            stackRestore(stack);
        }
    };

    /** Execute an sql statement, and call a callback for each row of result.

    Currently this method is synchronous, it will not return until the callback
    has been called on every row of the result. But this might change.

    @param {string} sql A string of SQL text. Can contain placeholders
    that will be bound to the parameters given as the second argument
    @param {Statement.BindParams=} [params=] Parameters to bind to the query
    @param {function(Object<string, Database.SqlValue>):void} callback
    Function to call on each row of result
    @param {function():void} done A function that will be called when
    all rows have been retrieved

    @return {Database} The database object. Useful for method chaining

    @example <caption>Read values from a table</caption>
    db.each("SELECT name,age FROM users WHERE age >= $majority", {$majority:18},
            function (row){console.log(row.name + " is a grown-up.")}
    );
     */
    // eslint-disable-next-line max-len
    Database.prototype["each"] = function each(sql, params, callback, done, config) {
        var stmt;
        if (typeof params === "function") {
            done = callback;
            callback = params;
            params = undefined;
        }
        stmt = this["prepare"](sql, params);
        try {
            while (stmt["step"]()) {
                callback(stmt["getAsObject"](null, config));
            }
        } finally {
            stmt["free"]();
        }
        if (typeof done === "function") {
            return done();
        }
        return undefined;
    };

    /** Prepare an SQL statement
    @param {string} sql a string of SQL, that can contain placeholders
    (`?`, `:VVV`, `:AAA`, `@AAA`)
    @param {Statement.BindParams} [params] values to bind to placeholders
    @return {Statement} the resulting statement
    @throws {String} SQLite error
     */
    Database.prototype["prepare"] = function prepare(sql, params) {
        setValue(apiTemp, 0, "i32");
        this.handleError(sqlite3_prepare_v2(this.db, sql, -1, apiTemp, NULL));
        // pointer to a statement, or null
        var pStmt = getValue(apiTemp, "i32");
        if (pStmt === NULL) {
            throw "Nothing to prepare";
        }
        var stmt = new Statement(pStmt, this);
        if (params != null) {
            stmt.bind(params);
        }
        this.statements[pStmt] = stmt;
        return stmt;
    };

    /** Iterate over multiple SQL statements in a SQL string.
     * This function returns an iterator over {@link Statement} objects.
     * You can use a for..of loop to execute the returned statements one by one.
     * @param {string} sql a string of SQL that can contain multiple statements
     * @return {StatementIterator} the resulting statement iterator
     * @example <caption>Get the results of multiple SQL queries</caption>
     * const sql_queries = "SELECT 1 AS x; SELECT '2' as y";
     * for (const statement of db.iterateStatements(sql_queries)) {
     *     const sql = statement.getSQL(); // Get the SQL source
     *     const result = statement.getAsObject({}); // Get the row of data
     *     console.log(sql, result);
     * }
     * // This will print:
     * // 'SELECT 1 AS x;' { x: 1 }
     * // " SELECT '2' as y" { y: '2' }
     */
    Database.prototype["iterateStatements"] = function iterateStatements(sql) {
        return new StatementIterator(sql, this);
    };

    /** Exports the contents of the database to a binary array. This
     * operation will close and re-open the database which will cause
     * any pragmas to be set back to their default values.
    @return {Uint8Array} An array of bytes of the SQLite3 database file
     */
    Database.prototype["export"] = function exportDatabase() {
        Object.values(this.statements).forEach(function each(stmt) {
            stmt["free"]();
        });
        Object.values(this.functions).forEach(removeFunction);
        this.functions = {};
        this.handleError(sqlite3_close_v2(this.db));
        var binaryDb = FS.readFile(this.filename, { encoding: "binary" });
        this.handleError(sqlite3_open(this.filename, apiTemp));
        this.db = getValue(apiTemp, "i32");
        registerExtensionFunctions(this.db);
        return binaryDb;
    };

    /** Close the database, and all associated prepared statements.
    * The memory associated to the database and all associated statements
    * will be freed.
    *
    * **Warning**: A statement belonging to a database that has been closed
    * cannot be used anymore.
    *
    * Databases **must** be closed when you're finished with them, or the
    * memory consumption will grow forever
     */
    Database.prototype["close"] = function close() {
        // do nothing if db is null or already closed
        if (this.db === null) {
            return;
        }
        Object.values(this.statements).forEach(function each(stmt) {
            stmt["free"]();
        });
        Object.values(this.functions).forEach(removeFunction);
        this.functions = {};

        if (this.updateHookFunctionPtr) {
            removeFunction(this.updateHookFunctionPtr);
            this.updateHookFunctionPtr = undefined;
        }

        this.handleError(sqlite3_close_v2(this.db));
        FS.unlink("/" + this.filename);
        this.db = null;
    };

    /** Analyze a result code, return null if no error occured, and throw
    an error with a descriptive message otherwise
    @nodoc
     */
    Database.prototype["handleError"] = function handleError(returnCode) {
        var errmsg;
        if (returnCode === SQLITE_OK) {
            return null;
        }
        errmsg = sqlite3_errmsg(this.db);
        throw new Error(errmsg);
    };

    /** Returns the number of changed rows (modified, inserted or deleted)
    by the latest completed INSERT, UPDATE or DELETE statement on the
    database. Executing any other type of SQL statement does not modify
    the value returned by this function.

    @return {number} the number of rows modified
    */
    Database.prototype["getRowsModified"] = function getRowsModified() {
        return sqlite3_changes(this.db);
    };

    var extract_blob = function extract_blob(ptr) {
        var size = sqlite3_value_bytes(ptr);
        var blob_ptr = sqlite3_value_blob(ptr);
        var blob_arg = new Uint8Array(size);
        for (var j = 0; j < size; j += 1) {
            blob_arg[j] = HEAP8[blob_ptr + j];
        }
        return blob_arg;
    };

    var parseFunctionArguments = function parseFunctionArguments(argc, argv) {
        var args = [];
        for (var i = 0; i < argc; i += 1) {
            var value_ptr = getValue(argv + (4 * i), "i32");
            var value_type = sqlite3_value_type(value_ptr);
            var arg;
            if (
                value_type === SQLITE_INTEGER
                || value_type === SQLITE_FLOAT
            ) {
                arg = sqlite3_value_double(value_ptr);
            } else if (value_type === SQLITE_TEXT) {
                arg = sqlite3_value_text(value_ptr);
            } else if (value_type === SQLITE_BLOB) {
                arg = extract_blob(value_ptr);
            } else arg = null;
            args.push(arg);
        }
        return args;
    };
    var setFunctionResult = function setFunctionResult(cx, result) {
        switch (typeof result) {
            case "boolean":
                sqlite3_result_int(cx, result ? 1 : 0);
                break;
            case "number":
                sqlite3_result_double(cx, result);
                break;
            case "string":
                sqlite3_result_text(cx, result, -1, -1);
                break;
            case "object":
                if (result === null) {
                    sqlite3_result_null(cx);
                } else if (result.length != null) {
                    var blobptr = allocate(result, ALLOC_NORMAL);
                    sqlite3_result_blob(cx, blobptr, result.length, -1);
                    _free(blobptr);
                } else {
                    sqlite3_result_error(
                        cx, (
                            "Wrong API use : tried to return a value "
                        + "of an unknown type (" + result + ")."
                        ), -1
                    );
                }
                break;
            default:
                sqlite3_result_null(cx);
        }
    };

    /** Register a custom function with SQLite
      @example <caption>Register a simple function</caption>
          db.create_function("addOne", function (x) {return x+1;})
          db.exec("SELECT addOne(1)") // = 2

      @param {string} name the name of the function as referenced in
      SQL statements.
      @param {function(any)} func the actual function to be executed.
      @return {Database} The database object. Useful for method chaining
       */
    Database.prototype["create_function"] = function create_function(
        name,
        func
    ) {
        function wrapped_func(cx, argc, argv) {
            var args = parseFunctionArguments(argc, argv);
            var result;
            try {
                result = func.apply(null, args);
            } catch (error) {
                sqlite3_result_error(cx, error, -1);
                return;
            }
            setFunctionResult(cx, result);
        }
        if (Object.prototype.hasOwnProperty.call(this.functions, name)) {
            removeFunction(this.functions[name]);
            delete this.functions[name];
        }
        // The signature of the wrapped function is :
        // void wrapped(sqlite3_context *db, int argc, sqlite3_value **argv)
        var func_ptr = addFunction(wrapped_func, "viii");
        this.functions[name] = func_ptr;
        this.handleError(sqlite3_create_function_v2(
            this.db,
            name,
            func.length,
            SQLITE_UTF8,
            0,
            func_ptr,
            0,
            0,
            0
        ));
        return this;
    };

    /** Register a custom aggregate with SQLite
      @example <caption>Register a custom sum function</caption>
        db.create_aggregate("js_sum", {
            init: () => 0,
            step: (state, value) => state + value,
            finalize: state => state
        });
        db.exec("SELECT js_sum(column1) FROM (VALUES (1), (2))"); // = 3

      @param {string} name the name of the aggregate as referenced in
      SQL statements.
      @param {object} aggregateFunctions
                      object containing at least a step function.
      @param {function(): T} [aggregateFunctions.init=]
            a function receiving no arguments and returning an initial
            value for the aggregate function. The initial value will be
            null if this key is omitted.
      @param {function(T, any) : T} aggregateFunctions.step
            a function receiving the current state and a value to aggregate
            and returning a new state.
            Will receive the value from init for the first step.
      @param {function(T): any} [aggregateFunctions.finalize=]
            a function returning the result of the aggregate function
            given its final state.
            If omitted, the value returned by the last step
            will be used as the final value.
      @return {Database} The database object. Useful for method chaining
      @template T
       */
    Database.prototype["create_aggregate"] = function create_aggregate(
        name,
        aggregateFunctions
    ) {
        // Default initializer and finalizer
        var init = aggregateFunctions["init"]
            || function init() { return null; };
        var finalize = aggregateFunctions["finalize"]
            || function finalize(state) { return state; };
        var step = aggregateFunctions["step"];

        if (!step) {
            throw "An aggregate function must have a step function in " + name;
        }

        // state is a state object; we'll use the pointer p to serve as the
        // key for where we hold our state so that multiple invocations of
        // this function never step on each other
        var state = {};

        function wrapped_step(cx, argc, argv) {
            // > The first time the sqlite3_aggregate_context(C,N) routine is
            // > called for a particular aggregate function, SQLite allocates N
            // > bytes of memory, zeroes out that memory, and returns a pointer
            // > to the new memory.
            //
            // We're going to use that pointer as a key to our state array,
            // since using sqlite3_aggregate_context as it's meant to be used
            // through webassembly seems to be very difficult. Just allocate
            // one byte.
            var p = sqlite3_aggregate_context(cx, 1);

            // If this is the first invocation of wrapped_step, call `init`
            //
            // Make sure that every path through the step and finalize
            // functions deletes the value state[p] when it's done so we don't
            // leak memory and possibly stomp the init value of future calls
            if (!Object.hasOwnProperty.call(state, p)) state[p] = init();

            var args = parseFunctionArguments(argc, argv);
            var mergedArgs = [state[p]].concat(args);
            try {
                state[p] = step.apply(null, mergedArgs);
            } catch (error) {
                delete state[p];
                sqlite3_result_error(cx, error, -1);
            }
        }

        function wrapped_finalize(cx) {
            var result;
            var p = sqlite3_aggregate_context(cx, 1);
            try {
                result = finalize(state[p]);
            } catch (error) {
                delete state[p];
                sqlite3_result_error(cx, error, -1);
                return;
            }
            setFunctionResult(cx, result);
            delete state[p];
        }

        if (Object.hasOwnProperty.call(this.functions, name)) {
            removeFunction(this.functions[name]);
            delete this.functions[name];
        }
        var finalize_name = name + "__finalize";
        if (Object.hasOwnProperty.call(this.functions, finalize_name)) {
            removeFunction(this.functions[finalize_name]);
            delete this.functions[finalize_name];
        }
        // The signature of the wrapped function is :
        // void wrapped(sqlite3_context *db, int argc, sqlite3_value **argv)
        var step_ptr = addFunction(wrapped_step, "viii");

        // The signature of the wrapped function is :
        // void wrapped(sqlite3_context *db)
        var finalize_ptr = addFunction(wrapped_finalize, "vi");
        this.functions[name] = step_ptr;
        this.functions[finalize_name] = finalize_ptr;

        // passing null to the sixth parameter defines this as an aggregate
        // function
        //
        // > An aggregate SQL function requires an implementation of xStep and
        // > xFinal and NULL pointer must be passed for xFunc.
        // - http://www.sqlite.org/c3ref/create_function.html
        this.handleError(sqlite3_create_function_v2(
            this.db,
            name,
            step.length - 1,
            SQLITE_UTF8,
            0,
            0,
            step_ptr,
            finalize_ptr,
            0
        ));
        return this;
    };

    /** Registers the update hook with SQLite
        @param {function(operation, database, table, rowId) | null} callback
             executed whenever a row in any rowid table is changed

        For each changed row, the callback is called once with the change
        ('insert', 'update' or 'delete'), the database name and table name
        where the change happened and the rowid of the row that has been
        changed.

        rowid is cast to a plain number, if it exceeds Number.MAX_SAFE_INTEGER
        an error will be thrown.

        The callback MUST NOT modify the database in any way.

        Only a single callback can be registered. Unregister the callback by
        passing null.

        Not called for some updates like ON REPLACE CONFLICT and TRUNCATE (a
        DELETE FROM without a WHERE clause).

        See sqlite docs on sqlite3_update_hook for more details.
       */
    Database.prototype["updateHook"] = function updateHook(callback) {
        if (this.updateHookFunctionPtr) {
            // unregister and cleanup a previously registered update hook
            sqlite3_update_hook(this.db, 0, 0);
            removeFunction(this.updateHookFunctionPtr);
            this.updateHookFunctionPtr = undefined;
        }

        if (!callback) {
            // no new callback to register
            return;
        }

        // void(*)(void *,int ,char const *,char const *,sqlite3_int64)
        function wrappedCallback(
            ignored,
            operationCode,
            databaseNamePtr,
            tableNamePtr,
            rowIdBigInt
        ) {
            var operation;

            switch (operationCode) {
                case SQLITE_INSERT:
                    operation = "insert";
                    break;
                case SQLITE_UPDATE:
                    operation = "update";
                    break;
                case SQLITE_DELETE:
                    operation = "delete";
                    break;
                default:
                    throw "unknown operationCode in updateHook callback: "
                        + operationCode;
            }

            var databaseName = UTF8ToString(databaseNamePtr);
            var tableName = UTF8ToString(tableNamePtr);

            if (rowIdBigInt > Number.MAX_SAFE_INTEGER) {
                throw "rowId too big to fit inside a Number";
            }

            var rowId = Number(rowIdBigInt);

            callback(operation, databaseName, tableName, rowId);
        }

        this.updateHookFunctionPtr = addFunction(wrappedCallback, "viiiij");

        sqlite3_update_hook(
            this.db,
            this.updateHookFunctionPtr,
            0 // passed as the first arg to wrappedCallback
        );
    };

    // export Database to Module
    Module.Database = Database;
};
// end include: src/api.js


// Sometimes an existing Module object exists with properties
// meant to overwrite the default module functionality. Here
// we collect those properties and reapply _after_ we configure
// the current environment's defaults to avoid having to be so
// defensive during initialization.
var moduleOverrides = {...Module};

var arguments_ = [];
var thisProgram = './this.program';
var quit_ = (status, toThrow) => {
  throw toThrow;
};

// `/` should be present at the end if `scriptDirectory` is not empty
var scriptDirectory = '';
function locateFile(path) {
  if (Module['locateFile']) {
    return Module['locateFile'](path, scriptDirectory);
  }
  return scriptDirectory + path;
}

// Hooks that are implemented differently in different runtime environments.
var readAsync, readBinary;

if (ENVIRONMENT_IS_NODE) {
  if (typeof process == 'undefined' || !process.release || process.release.name !== 'node') throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');

  var nodeVersion = process.versions.node;
  var numericVersion = nodeVersion.split('.').slice(0, 3);
  numericVersion = (numericVersion[0] * 10000) + (numericVersion[1] * 100) + (numericVersion[2].split('-')[0] * 1);
  var minVersion = 160000;
  if (numericVersion < 160000) {
    throw new Error('This emscripten-generated code requires node v16.0.0 (detected v' + nodeVersion + ')');
  }

  // These modules will usually be used on Node.js. Load them eagerly to avoid
  // the complexity of lazy-loading.
  var fs = require('fs');
  var nodePath = require('path');

  scriptDirectory = __dirname + '/';

// include: node_shell_read.js
readBinary = (filename) => {
  // We need to re-wrap `file://` strings to URLs.
  filename = isFileURI(filename) ? new URL(filename) : filename;
  var ret = fs.readFileSync(filename);
  assert(Buffer.isBuffer(ret));
  return ret;
};

readAsync = async (filename, binary = true) => {
  // See the comment in the `readBinary` function.
  filename = isFileURI(filename) ? new URL(filename) : filename;
  var ret = fs.readFileSync(filename, binary ? undefined : 'utf8');
  assert(binary ? Buffer.isBuffer(ret) : typeof ret == 'string');
  return ret;
};
// end include: node_shell_read.js
  if (!Module['thisProgram'] && process.argv.length > 1) {
    thisProgram = process.argv[1].replace(/\\/g, '/');
  }

  arguments_ = process.argv.slice(2);

  if (typeof module != 'undefined') {
    module['exports'] = Module;
  }

  quit_ = (status, toThrow) => {
    process.exitCode = status;
    throw toThrow;
  };

} else
if (ENVIRONMENT_IS_SHELL) {

  if ((typeof process == 'object' && typeof require === 'function') || typeof window == 'object' || typeof WorkerGlobalScope != 'undefined') throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');

} else

// Note that this includes Node.js workers when relevant (pthreads is enabled).
// Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and
// ENVIRONMENT_IS_NODE.
if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
  if (ENVIRONMENT_IS_WORKER) { // Check worker, not web, since window could be polyfilled
    scriptDirectory = self.location.href;
  } else if (typeof document != 'undefined' && document.currentScript) { // web
    scriptDirectory = document.currentScript.src;
  }
  // blob urls look like blob:http://site.com/etc/etc and we cannot infer anything from them.
  // otherwise, slice off the final part of the url to find the script directory.
  // if scriptDirectory does not contain a slash, lastIndexOf will return -1,
  // and scriptDirectory will correctly be replaced with an empty string.
  // If scriptDirectory contains a query (starting with ?) or a fragment (starting with #),
  // they are removed because they could contain a slash.
  if (scriptDirectory.startsWith('blob:')) {
    scriptDirectory = '';
  } else {
    scriptDirectory = scriptDirectory.slice(0, scriptDirectory.replace(/[?#].*/, '').lastIndexOf('/')+1);
  }

  if (!(typeof window == 'object' || typeof WorkerGlobalScope != 'undefined')) throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');

  {
// include: web_or_worker_shell_read.js
if (ENVIRONMENT_IS_WORKER) {
    readBinary = (url) => {
      var xhr = new XMLHttpRequest();
      xhr.open('GET', url, false);
      xhr.responseType = 'arraybuffer';
      xhr.send(null);
      return new Uint8Array(/** @type{!ArrayBuffer} */(xhr.response));
    };
  }

  readAsync = async (url) => {
    // Fetch has some additional restrictions over XHR, like it can't be used on a file:// url.
    // See https://github.com/github/fetch/pull/92#issuecomment-140665932
    // Cordova or Electron apps are typically loaded from a file:// url.
    // So use XHR on webview if URL is a file URL.
    if (isFileURI(url)) {
      return new Promise((resolve, reject) => {
        var xhr = new XMLHttpRequest();
        xhr.open('GET', url, true);
        xhr.responseType = 'arraybuffer';
        xhr.onload = () => {
          if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
            resolve(xhr.response);
            return;
          }
          reject(xhr.status);
        };
        xhr.onerror = reject;
        xhr.send(null);
      });
    }
    var response = await fetch(url, { credentials: 'same-origin' });
    if (response.ok) {
      return response.arrayBuffer();
    }
    throw new Error(response.status + ' : ' + response.url);
  };
// end include: web_or_worker_shell_read.js
  }
} else
{
  throw new Error('environment detection error');
}

var out = Module['print'] || console.log.bind(console);
var err = Module['printErr'] || console.error.bind(console);

// Merge back in the overrides
Object.assign(Module, moduleOverrides);
// Free the object hierarchy contained in the overrides, this lets the GC
// reclaim data used.
moduleOverrides = null;
checkIncomingModuleAPI();

// Emit code to handle expected values on the Module object. This applies Module.x
// to the proper local x. This has two benefits: first, we only emit it if it is
// expected to arrive, and second, by using a local everywhere else that can be
// minified.

if (Module['arguments']) arguments_ = Module['arguments'];legacyModuleProp('arguments', 'arguments_');

if (Module['thisProgram']) thisProgram = Module['thisProgram'];legacyModuleProp('thisProgram', 'thisProgram');

// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message
// Assertions on removed incoming Module JS APIs.
assert(typeof Module['memoryInitializerPrefixURL'] == 'undefined', 'Module.memoryInitializerPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['pthreadMainPrefixURL'] == 'undefined', 'Module.pthreadMainPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['cdInitializerPrefixURL'] == 'undefined', 'Module.cdInitializerPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['filePackagePrefixURL'] == 'undefined', 'Module.filePackagePrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['read'] == 'undefined', 'Module.read option was removed');
assert(typeof Module['readAsync'] == 'undefined', 'Module.readAsync option was removed (modify readAsync in JS)');
assert(typeof Module['readBinary'] == 'undefined', 'Module.readBinary option was removed (modify readBinary in JS)');
assert(typeof Module['setWindowTitle'] == 'undefined', 'Module.setWindowTitle option was removed (modify emscripten_set_window_title in JS)');
assert(typeof Module['TOTAL_MEMORY'] == 'undefined', 'Module.TOTAL_MEMORY has been renamed Module.INITIAL_MEMORY');
legacyModuleProp('asm', 'wasmExports');
legacyModuleProp('readAsync', 'readAsync');
legacyModuleProp('readBinary', 'readBinary');
legacyModuleProp('setWindowTitle', 'setWindowTitle');
var IDBFS = 'IDBFS is no longer included by default; build with -lidbfs.js';
var PROXYFS = 'PROXYFS is no longer included by default; build with -lproxyfs.js';
var WORKERFS = 'WORKERFS is no longer included by default; build with -lworkerfs.js';
var FETCHFS = 'FETCHFS is no longer included by default; build with -lfetchfs.js';
var ICASEFS = 'ICASEFS is no longer included by default; build with -licasefs.js';
var JSFILEFS = 'JSFILEFS is no longer included by default; build with -ljsfilefs.js';
var OPFS = 'OPFS is no longer included by default; build with -lopfs.js';

var NODEFS = 'NODEFS is no longer included by default; build with -lnodefs.js';

assert(!ENVIRONMENT_IS_SHELL, 'shell environment detected but not enabled at build time.  Add `shell` to `-sENVIRONMENT` to enable.');

// end include: shell.js

// include: preamble.js
// === Preamble library stuff ===

// Documentation for the public APIs defined in this file must be updated in:
//    site/source/docs/api_reference/preamble.js.rst
// A prebuilt local version of the documentation is available at:
//    site/build/text/docs/api_reference/preamble.js.txt
// You can also build docs locally as HTML or other formats in site/
// An online HTML version (which may be of a different version of Emscripten)
//    is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html

var wasmBinary = Module['wasmBinary'];legacyModuleProp('wasmBinary', 'wasmBinary');

if (typeof WebAssembly != 'object') {
  err('no native wasm support detected');
}

// Wasm globals

var wasmMemory;

//========================================
// Runtime essentials
//========================================

// whether we are quitting the application. no code should run after this.
// set in exit() and abort()
var ABORT = false;

// set by exit() and abort().  Passed to 'onExit' handler.
// NOTE: This is also used as the process return code code in shell environments
// but only when noExitRuntime is false.
var EXITSTATUS;

// In STRICT mode, we only define assert() when ASSERTIONS is set.  i.e. we
// don't define it at all in release modes.  This matches the behaviour of
// MINIMAL_RUNTIME.
// TODO(sbc): Make this the default even without STRICT enabled.
/** @type {function(*, string=)} */
function assert(condition, text) {
  if (!condition) {
    abort('Assertion failed' + (text ? ': ' + text : ''));
  }
}

// We used to include malloc/free by default in the past. Show a helpful error in
// builds with assertions.

// Memory management

var HEAP,
/** @type {!Int8Array} */
  HEAP8,
/** @type {!Uint8Array} */
  HEAPU8,
/** @type {!Int16Array} */
  HEAP16,
/** @type {!Uint16Array} */
  HEAPU16,
/** @type {!Int32Array} */
  HEAP32,
/** @type {!Uint32Array} */
  HEAPU32,
/** @type {!Float32Array} */
  HEAPF32,
/* BigInt64Array type is not correctly defined in closure
/** not-@type {!BigInt64Array} */
  HEAP64,
/* BigUint64Array type is not correctly defined in closure
/** not-t@type {!BigUint64Array} */
  HEAPU64,
/** @type {!Float64Array} */
  HEAPF64;

var runtimeInitialized = false;

/**
 * Indicates whether filename is delivered via file protocol (as opposed to http/https)
 * @noinline
 */
var isFileURI = (filename) => filename.startsWith('file://');

// include: runtime_shared.js
// include: runtime_stack_check.js
// Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode.
function writeStackCookie() {
  var max = _emscripten_stack_get_end();
  assert((max & 3) == 0);
  // If the stack ends at address zero we write our cookies 4 bytes into the
  // stack.  This prevents interference with SAFE_HEAP and ASAN which also
  // monitor writes to address zero.
  if (max == 0) {
    max += 4;
  }
  // The stack grow downwards towards _emscripten_stack_get_end.
  // We write cookies to the final two words in the stack and detect if they are
  // ever overwritten.
  HEAPU32[((max)>>2)] = 0x02135467;checkInt32(0x02135467);
  HEAPU32[(((max)+(4))>>2)] = 0x89BACDFE;checkInt32(0x89BACDFE);
  // Also test the global address 0 for integrity.
  HEAPU32[((0)>>2)] = 1668509029;checkInt32(1668509029);
}

function checkStackCookie() {
  if (ABORT) return;
  var max = _emscripten_stack_get_end();
  // See writeStackCookie().
  if (max == 0) {
    max += 4;
  }
  var cookie1 = HEAPU32[((max)>>2)];
  var cookie2 = HEAPU32[(((max)+(4))>>2)];
  if (cookie1 != 0x02135467 || cookie2 != 0x89BACDFE) {
    abort(`Stack overflow! Stack cookie has been overwritten at ${ptrToString(max)}, expected hex dwords 0x89BACDFE and 0x2135467, but received ${ptrToString(cookie2)} ${ptrToString(cookie1)}`);
  }
  // Also test the global address 0 for integrity.
  if (HEAPU32[((0)>>2)] != 0x63736d65 /* 'emsc' */) {
    abort('Runtime error: The application has corrupted its heap memory area (address zero)!');
  }
}
// end include: runtime_stack_check.js
// include: runtime_exceptions.js
// end include: runtime_exceptions.js
// include: runtime_debug.js
// Endianness check
(() => {
  var h16 = new Int16Array(1);
  var h8 = new Int8Array(h16.buffer);
  h16[0] = 0x6373;
  if (h8[0] !== 0x73 || h8[1] !== 0x63) throw 'Runtime error: expected the system to be little-endian! (Run with -sSUPPORT_BIG_ENDIAN to bypass)';
})();

if (Module['ENVIRONMENT']) {
  throw new Error('Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -sENVIRONMENT=web or -sENVIRONMENT=node)');
}

function legacyModuleProp(prop, newName, incoming=true) {
  if (!Object.getOwnPropertyDescriptor(Module, prop)) {
    Object.defineProperty(Module, prop, {
      configurable: true,
      get() {
        let extra = incoming ? ' (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)' : '';
        abort(`\`Module.${prop}\` has been replaced by \`${newName}\`` + extra);

      }
    });
  }
}

function consumedModuleProp(prop) {
  if (!Object.getOwnPropertyDescriptor(Module, prop)) {
    Object.defineProperty(Module, prop, {
      configurable: true,
      set() {
        abort(`Attempt to set \`Module.${prop}\` after it has already been processed.  This can happen, for example, when code is injected via '--post-js' rather than '--pre-js'`);

      }
    });
  }
}

function ignoredModuleProp(prop) {
  if (Object.getOwnPropertyDescriptor(Module, prop)) {
    abort(`\`Module.${prop}\` was supplied but \`${prop}\` not included in INCOMING_MODULE_JS_API`);
  }
}

// forcing the filesystem exports a few things by default
function isExportedByForceFilesystem(name) {
  return name === 'FS_createPath' ||
         name === 'FS_createDataFile' ||
         name === 'FS_createPreloadedFile' ||
         name === 'FS_unlink' ||
         name === 'addRunDependency' ||
         // The old FS has some functionality that WasmFS lacks.
         name === 'FS_createLazyFile' ||
         name === 'FS_createDevice' ||
         name === 'removeRunDependency';
}

/**
 * Intercept access to a global symbol.  This enables us to give informative
 * warnings/errors when folks attempt to use symbols they did not include in
 * their build, or no symbols that no longer exist.
 */
function hookGlobalSymbolAccess(sym, func) {
  if (typeof globalThis != 'undefined' && !Object.getOwnPropertyDescriptor(globalThis, sym)) {
    Object.defineProperty(globalThis, sym, {
      configurable: true,
      get() {
        func();
        return undefined;
      }
    });
  }
}

function missingGlobal(sym, msg) {
  hookGlobalSymbolAccess(sym, () => {
    warnOnce(`\`${sym}\` is not longer defined by emscripten. ${msg}`);
  });
}

missingGlobal('buffer', 'Please use HEAP8.buffer or wasmMemory.buffer');
missingGlobal('asm', 'Please use wasmExports instead');

function missingLibrarySymbol(sym) {
  hookGlobalSymbolAccess(sym, () => {
    // Can't `abort()` here because it would break code that does runtime
    // checks.  e.g. `if (typeof SDL === 'undefined')`.
    var msg = `\`${sym}\` is a library symbol and not included by default; add it to your library.js __deps or to DEFAULT_LIBRARY_FUNCS_TO_INCLUDE on the command line`;
    // DEFAULT_LIBRARY_FUNCS_TO_INCLUDE requires the name as it appears in
    // library.js, which means $name for a JS name with no prefix, or name
    // for a JS name like _name.
    var librarySymbol = sym;
    if (!librarySymbol.startsWith('_')) {
      librarySymbol = '$' + sym;
    }
    msg += ` (e.g. -sDEFAULT_LIBRARY_FUNCS_TO_INCLUDE='${librarySymbol}')`;
    if (isExportedByForceFilesystem(sym)) {
      msg += '. Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you';
    }
    warnOnce(msg);
  });

  // Any symbol that is not included from the JS library is also (by definition)
  // not exported on the Module object.
  unexportedRuntimeSymbol(sym);
}

function unexportedRuntimeSymbol(sym) {
  if (!Object.getOwnPropertyDescriptor(Module, sym)) {
    Object.defineProperty(Module, sym, {
      configurable: true,
      get() {
        var msg = `'${sym}' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the Emscripten FAQ)`;
        if (isExportedByForceFilesystem(sym)) {
          msg += '. Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you';
        }
        abort(msg);
      }
    });
  }
}

var MAX_UINT8  = (2 **  8) - 1;
var MAX_UINT16 = (2 ** 16) - 1;
var MAX_UINT32 = (2 ** 32) - 1;
var MAX_UINT53 = (2 ** 53) - 1;
var MAX_UINT64 = (2 ** 64) - 1;

var MIN_INT8  = - (2 ** ( 8 - 1));
var MIN_INT16 = - (2 ** (16 - 1));
var MIN_INT32 = - (2 ** (32 - 1));
var MIN_INT53 = - (2 ** (53 - 1));
var MIN_INT64 = - (2 ** (64 - 1));

function checkInt(value, bits, min, max) {
  assert(Number.isInteger(Number(value)), `attempt to write non-integer (${value}) into integer heap`);
  assert(value <= max, `value (${value}) too large to write as ${bits}-bit value`);
  assert(value >= min, `value (${value}) too small to write as ${bits}-bit value`);
}

var checkInt1 = (value) => checkInt(value, 1, 1);
var checkInt8 = (value) => checkInt(value, 8, MIN_INT8, MAX_UINT8);
var checkInt16 = (value) => checkInt(value, 16, MIN_INT16, MAX_UINT16);
var checkInt32 = (value) => checkInt(value, 32, MIN_INT32, MAX_UINT32);
var checkInt53 = (value) => checkInt(value, 53, MIN_INT53, MAX_UINT53);
var checkInt64 = (value) => checkInt(value, 64, MIN_INT64, MAX_UINT64);

var runtimeDebug = true; // Switch to false at runtime to disable logging at the right times

// Used by XXXXX_DEBUG settings to output debug messages.
function dbg(...args) {
  if (!runtimeDebug && typeof runtimeDebug != 'undefined') return;
  // TODO(sbc): Make this configurable somehow.  Its not always convenient for
  // logging to show up as warnings.
  console.warn(...args);
}
// end include: runtime_debug.js
// include: memoryprofiler.js
// end include: memoryprofiler.js


function updateMemoryViews() {
  var b = wasmMemory.buffer;
  Module['HEAP8'] = HEAP8 = new Int8Array(b);
  Module['HEAP16'] = HEAP16 = new Int16Array(b);
  Module['HEAPU8'] = HEAPU8 = new Uint8Array(b);
  Module['HEAPU16'] = HEAPU16 = new Uint16Array(b);
  Module['HEAP32'] = HEAP32 = new Int32Array(b);
  Module['HEAPU32'] = HEAPU32 = new Uint32Array(b);
  Module['HEAPF32'] = HEAPF32 = new Float32Array(b);
  Module['HEAPF64'] = HEAPF64 = new Float64Array(b);
  Module['HEAP64'] = HEAP64 = new BigInt64Array(b);
  Module['HEAPU64'] = HEAPU64 = new BigUint64Array(b);
}

// end include: runtime_shared.js
assert(!Module['STACK_SIZE'], 'STACK_SIZE can no longer be set at runtime.  Use -sSTACK_SIZE at link time')

assert(typeof Int32Array != 'undefined' && typeof Float64Array !== 'undefined' && Int32Array.prototype.subarray != undefined && Int32Array.prototype.set != undefined,
       'JS engine does not provide full typed array support');

// If memory is defined in wasm, the user can't provide it, or set INITIAL_MEMORY
assert(!Module['wasmMemory'], 'Use of `wasmMemory` detected.  Use -sIMPORTED_MEMORY to define wasmMemory externally');
assert(!Module['INITIAL_MEMORY'], 'Detected runtime INITIAL_MEMORY setting.  Use -sIMPORTED_MEMORY to define wasmMemory dynamically');

function preRun() {
  if (Module['preRun']) {
    if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']];
    while (Module['preRun'].length) {
      addOnPreRun(Module['preRun'].shift());
    }
  }
  consumedModuleProp('preRun');
  callRuntimeCallbacks(onPreRuns);
}

function initRuntime() {
  assert(!runtimeInitialized);
  runtimeInitialized = true;

  checkStackCookie();

  setStackLimits();

  if (!Module['noFSInit'] && !FS.initialized) FS.init();
TTY.init();

  wasmExports['__wasm_call_ctors']();

  FS.ignorePermissions = false;
}

function postRun() {
  checkStackCookie();

  if (Module['postRun']) {
    if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']];
    while (Module['postRun'].length) {
      addOnPostRun(Module['postRun'].shift());
    }
  }
  consumedModuleProp('postRun');

  callRuntimeCallbacks(onPostRuns);
}

// A counter of dependencies for calling run(). If we need to
// do asynchronous work before running, increment this and
// decrement it. Incrementing must happen in a place like
// Module.preRun (used by emcc to add file preloading).
// Note that you can add dependencies in preRun, even though
// it happens right before run - run will be postponed until
// the dependencies are met.
var runDependencies = 0;
var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled
var runDependencyTracking = {};
var runDependencyWatcher = null;

function getUniqueRunDependency(id) {
  var orig = id;
  while (1) {
    if (!runDependencyTracking[id]) return id;
    id = orig + Math.random();
  }
}

function addRunDependency(id) {
  runDependencies++;

  Module['monitorRunDependencies']?.(runDependencies);

  if (id) {
    assert(!runDependencyTracking[id]);
    runDependencyTracking[id] = 1;
    if (runDependencyWatcher === null && typeof setInterval != 'undefined') {
      // Check for missing dependencies every few seconds
      runDependencyWatcher = setInterval(() => {
        if (ABORT) {
          clearInterval(runDependencyWatcher);
          runDependencyWatcher = null;
          return;
        }
        var shown = false;
        for (var dep in runDependencyTracking) {
          if (!shown) {
            shown = true;
            err('still waiting on run dependencies:');
          }
          err(`dependency: ${dep}`);
        }
        if (shown) {
          err('(end of list)');
        }
      }, 10000);
    }
  } else {
    err('warning: run dependency added without ID');
  }
}

function removeRunDependency(id) {
  runDependencies--;

  Module['monitorRunDependencies']?.(runDependencies);

  if (id) {
    assert(runDependencyTracking[id]);
    delete runDependencyTracking[id];
  } else {
    err('warning: run dependency removed without ID');
  }
  if (runDependencies == 0) {
    if (runDependencyWatcher !== null) {
      clearInterval(runDependencyWatcher);
      runDependencyWatcher = null;
    }
    if (dependenciesFulfilled) {
      var callback = dependenciesFulfilled;
      dependenciesFulfilled = null;
      callback(); // can add another dependenciesFulfilled
    }
  }
}

/** @param {string|number=} what */
function abort(what) {
  Module['onAbort']?.(what);

  what = 'Aborted(' + what + ')';
  // TODO(sbc): Should we remove printing and leave it up to whoever
  // catches the exception?
  err(what);

  ABORT = true;

  // Use a wasm runtime error, because a JS error might be seen as a foreign
  // exception, which means we'd run destructors on it. We need the error to
  // simply make the program stop.
  // FIXME This approach does not work in Wasm EH because it currently does not assume
  // all RuntimeErrors are from traps; it decides whether a RuntimeError is from
  // a trap or not based on a hidden field within the object. So at the moment
  // we don't have a way of throwing a wasm trap from JS. TODO Make a JS API that
  // allows this in the wasm spec.

  // Suppress closure compiler warning here. Closure compiler's builtin extern
  // definition for WebAssembly.RuntimeError claims it takes no arguments even
  // though it can.
  // TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed.
  /** @suppress {checkTypes} */
  var e = new WebAssembly.RuntimeError(what);

  // Throw the error whether or not MODULARIZE is set because abort is used
  // in code paths apart from instantiation where an exception is expected
  // to be thrown when abort is called.
  throw e;
}

function createExportWrapper(name, nargs) {
  return (...args) => {
    assert(runtimeInitialized, `native function \`${name}\` called before runtime initialization`);
    var f = wasmExports[name];
    assert(f, `exported native function \`${name}\` not found`);
    // Only assert for too many arguments. Too few can be valid since the missing arguments will be zero filled.
    assert(args.length <= nargs, `native function \`${name}\` called with ${args.length} args but expects ${nargs}`);
    return f(...args);
  };
}

var wasmBinaryFile;

function findWasmBinary() {
    return locateFile('sql-wasm-debug.wasm');
}

function getBinarySync(file) {
  if (file == wasmBinaryFile && wasmBinary) {
    return new Uint8Array(wasmBinary);
  }
  if (readBinary) {
    return readBinary(file);
  }
  throw 'both async and sync fetching of the wasm failed';
}

async function getWasmBinary(binaryFile) {
  // If we don't have the binary yet, load it asynchronously using readAsync.
  if (!wasmBinary) {
    // Fetch the binary using readAsync
    try {
      var response = await readAsync(binaryFile);
      return new Uint8Array(response);
    } catch {
      // Fall back to getBinarySync below;
    }
  }

  // Otherwise, getBinarySync should be able to get it synchronously
  return getBinarySync(binaryFile);
}

async function instantiateArrayBuffer(binaryFile, imports) {
  try {
    var binary = await getWasmBinary(binaryFile);
    var instance = await WebAssembly.instantiate(binary, imports);
    return instance;
  } catch (reason) {
    err(`failed to asynchronously prepare wasm: ${reason}`);

    // Warn on some common problems.
    if (isFileURI(wasmBinaryFile)) {
      err(`warning: Loading from a file URI (${wasmBinaryFile}) is not supported in most browsers. See https://emscripten.org/docs/getting_started/FAQ.html#how-do-i-run-a-local-webserver-for-testing-why-does-my-program-stall-in-downloading-or-preparing`);
    }
    abort(reason);
  }
}

async function instantiateAsync(binary, binaryFile, imports) {
  if (!binary && typeof WebAssembly.instantiateStreaming == 'function'
      // Don't use streaming for file:// delivered objects in a webview, fetch them synchronously.
      && !isFileURI(binaryFile)
      // Avoid instantiateStreaming() on Node.js environment for now, as while
      // Node.js v18.1.0 implements it, it does not have a full fetch()
      // implementation yet.
      //
      // Reference:
      //   https://github.com/emscripten-core/emscripten/pull/16917
      && !ENVIRONMENT_IS_NODE
     ) {
    try {
      var response = fetch(binaryFile, { credentials: 'same-origin' });
      var instantiationResult = await WebAssembly.instantiateStreaming(response, imports);
      return instantiationResult;
    } catch (reason) {
      // We expect the most common failure cause to be a bad MIME type for the binary,
      // in which case falling back to ArrayBuffer instantiation should work.
      err(`wasm streaming compile failed: ${reason}`);
      err('falling back to ArrayBuffer instantiation');
      // fall back of instantiateArrayBuffer below
    };
  }
  return instantiateArrayBuffer(binaryFile, imports);
}

function getWasmImports() {
  // prepare imports
  return {
    'env': wasmImports,
    'wasi_snapshot_preview1': wasmImports,
  }
}

// Create the wasm instance.
// Receives the wasm imports, returns the exports.
async function createWasm() {
  // Load the wasm module and create an instance of using native support in the JS engine.
  // handle a generated wasm instance, receiving its exports and
  // performing other necessary setup
  /** @param {WebAssembly.Module=} module*/
  function receiveInstance(instance, module) {
    wasmExports = instance.exports;

    

    wasmMemory = wasmExports['memory'];
    
    assert(wasmMemory, 'memory not found in wasm exports');
    updateMemoryViews();

    wasmTable = wasmExports['__indirect_function_table'];
    
    assert(wasmTable, 'table not found in wasm exports');

    removeRunDependency('wasm-instantiate');
    return wasmExports;
  }
  // wait for the pthread pool (if any)
  addRunDependency('wasm-instantiate');

  // Prefer streaming instantiation if available.
  // Async compilation can be confusing when an error on the page overwrites Module
  // (for example, if the order of elements is wrong, and the one defining Module is
  // later), so we save Module and check it later.
  var trueModule = Module;
  function receiveInstantiationResult(result) {
    // 'result' is a ResultObject object which has both the module and instance.
    // receiveInstance() will swap in the exports (to Module.asm) so they can be called
    assert(Module === trueModule, 'the Module object should not be replaced during async compilation - perhaps the order of HTML elements is wrong?');
    trueModule = null;
    // TODO: Due to Closure regression https://github.com/google/closure-compiler/issues/3193, the above line no longer optimizes out down to the following line.
    // When the regression is fixed, can restore the above PTHREADS-enabled path.
    return receiveInstance(result['instance']);
  }

  var info = getWasmImports();

  // User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback
  // to manually instantiate the Wasm module themselves. This allows pages to
  // run the instantiation parallel to any other async startup actions they are
  // performing.
  // Also pthreads and wasm workers initialize the wasm instance through this
  // path.
  if (Module['instantiateWasm']) {
    return new Promise((resolve, reject) => {
      try {
        Module['instantiateWasm'](info, (mod, inst) => {
          receiveInstance(mod, inst);
          resolve(mod.exports);
        });
      } catch(e) {
        err(`Module.instantiateWasm callback failed with error: ${e}`);
        reject(e);
      }
    });
  }

  wasmBinaryFile ??= findWasmBinary();
    var result = await instantiateAsync(wasmBinary, wasmBinaryFile, info);
    var exports = receiveInstantiationResult(result);
    return exports;
}

// end include: preamble.js

// Begin JS library code


  class ExitStatus {
      name = 'ExitStatus';
      constructor(status) {
        this.message = `Program terminated with exit(${status})`;
        this.status = status;
      }
    }

  var callRuntimeCallbacks = (callbacks) => {
      while (callbacks.length > 0) {
        // Pass the module as the first argument.
        callbacks.shift()(Module);
      }
    };
  var onPostRuns = [];
  var addOnPostRun = (cb) => onPostRuns.unshift(cb);

  var onPreRuns = [];
  var addOnPreRun = (cb) => onPreRuns.unshift(cb);


  
    /**
     * @param {number} ptr
     * @param {string} type
     */
  function getValue(ptr, type = 'i8') {
    if (type.endsWith('*')) type = '*';
    switch (type) {
      case 'i1': return HEAP8[ptr];
      case 'i8': return HEAP8[ptr];
      case 'i16': return HEAP16[((ptr)>>1)];
      case 'i32': return HEAP32[((ptr)>>2)];
      case 'i64': return HEAP64[((ptr)>>3)];
      case 'float': return HEAPF32[((ptr)>>2)];
      case 'double': return HEAPF64[((ptr)>>3)];
      case '*': return HEAPU32[((ptr)>>2)];
      default: abort(`invalid type for getValue: ${type}`);
    }
  }

  var noExitRuntime = Module['noExitRuntime'] || true;

  var ptrToString = (ptr) => {
      assert(typeof ptr === 'number');
      // With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned.
      ptr >>>= 0;
      return '0x' + ptr.toString(16).padStart(8, '0');
    };

  var setStackLimits = () => {
      var stackLow = _emscripten_stack_get_base();
      var stackHigh = _emscripten_stack_get_end();
      ___set_stack_limits(stackLow, stackHigh);
    };

  
    /**
     * @param {number} ptr
     * @param {number} value
     * @param {string} type
     */
  function setValue(ptr, value, type = 'i8') {
    if (type.endsWith('*')) type = '*';
    switch (type) {
      case 'i1': HEAP8[ptr] = value;checkInt8(value); break;
      case 'i8': HEAP8[ptr] = value;checkInt8(value); break;
      case 'i16': HEAP16[((ptr)>>1)] = value;checkInt16(value); break;
      case 'i32': HEAP32[((ptr)>>2)] = value;checkInt32(value); break;
      case 'i64': HEAP64[((ptr)>>3)] = BigInt(value);checkInt64(value); break;
      case 'float': HEAPF32[((ptr)>>2)] = value; break;
      case 'double': HEAPF64[((ptr)>>3)] = value; break;
      case '*': HEAPU32[((ptr)>>2)] = value; break;
      default: abort(`invalid type for setValue: ${type}`);
    }
  }

  var stackRestore = (val) => __emscripten_stack_restore(val);

  var stackSave = () => _emscripten_stack_get_current();

  var warnOnce = (text) => {
      warnOnce.shown ||= {};
      if (!warnOnce.shown[text]) {
        warnOnce.shown[text] = 1;
        if (ENVIRONMENT_IS_NODE) text = 'warning: ' + text;
        err(text);
      }
    };

  var UTF8Decoder = typeof TextDecoder != 'undefined' ? new TextDecoder() : undefined;
  
    /**
     * Given a pointer 'idx' to a null-terminated UTF8-encoded string in the given
     * array that contains uint8 values, returns a copy of that string as a
     * Javascript String object.
     * heapOrArray is either a regular array, or a JavaScript typed array view.
     * @param {number=} idx
     * @param {number=} maxBytesToRead
     * @return {string}
     */
  var UTF8ArrayToString = (heapOrArray, idx = 0, maxBytesToRead = NaN) => {
      var endIdx = idx + maxBytesToRead;
      var endPtr = idx;
      // TextDecoder needs to know the byte length in advance, it doesn't stop on
      // null terminator by itself.  Also, use the length info to avoid running tiny
      // strings through TextDecoder, since .subarray() allocates garbage.
      // (As a tiny code save trick, compare endPtr against endIdx using a negation,
      // so that undefined/NaN means Infinity)
      while (heapOrArray[endPtr] && !(endPtr >= endIdx)) ++endPtr;
  
      if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) {
        return UTF8Decoder.decode(heapOrArray.subarray(idx, endPtr));
      }
      var str = '';
      // If building with TextDecoder, we have already computed the string length
      // above, so test loop end condition against that
      while (idx < endPtr) {
        // For UTF8 byte structure, see:
        // http://en.wikipedia.org/wiki/UTF-8#Description
        // https://www.ietf.org/rfc/rfc2279.txt
        // https://tools.ietf.org/html/rfc3629
        var u0 = heapOrArray[idx++];
        if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; }
        var u1 = heapOrArray[idx++] & 63;
        if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; }
        var u2 = heapOrArray[idx++] & 63;
        if ((u0 & 0xF0) == 0xE0) {
          u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;
        } else {
          if ((u0 & 0xF8) != 0xF0) warnOnce('Invalid UTF-8 leading byte ' + ptrToString(u0) + ' encountered when deserializing a UTF-8 string in wasm memory to a JS string!');
          u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (heapOrArray[idx++] & 63);
        }
  
        if (u0 < 0x10000) {
          str += String.fromCharCode(u0);
        } else {
          var ch = u0 - 0x10000;
          str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
        }
      }
      return str;
    };
  
    /**
     * Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the
     * emscripten HEAP, returns a copy of that string as a Javascript String object.
     *
     * @param {number} ptr
     * @param {number=} maxBytesToRead - An optional length that specifies the
     *   maximum number of bytes to read. You can omit this parameter to scan the
     *   string until the first 0 byte. If maxBytesToRead is passed, and the string
     *   at [ptr, ptr+maxBytesToReadr[ contains a null byte in the middle, then the
     *   string will cut short at that byte index (i.e. maxBytesToRead will not
     *   produce a string of exact length [ptr, ptr+maxBytesToRead[) N.B. mixing
     *   frequent uses of UTF8ToString() with and without maxBytesToRead may throw
     *   JS JIT optimizations off, so it is worth to consider consistently using one
     * @return {string}
     */
  var UTF8ToString = (ptr, maxBytesToRead) => {
      assert(typeof ptr == 'number', `UTF8ToString expects a number (got ${typeof ptr})`);
      return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : '';
    };
  var ___assert_fail = (condition, filename, line, func) =>
      abort(`Assertion failed: ${UTF8ToString(condition)}, at: ` + [filename ? UTF8ToString(filename) : 'unknown filename', line, func ? UTF8ToString(func) : 'unknown function']);

  
  
  var ___handle_stack_overflow = (requested) => {
      var base = _emscripten_stack_get_base();
      var end = _emscripten_stack_get_end();
      abort(`stack overflow (Attempt to set SP to ${ptrToString(requested)}` +
            `, with stack limits [${ptrToString(end)} - ${ptrToString(base)}` +
            ']). If you require more stack space build with -sSTACK_SIZE=<bytes>');
    };

  var PATH = {
  isAbs:(path) => path.charAt(0) === '/',
  splitPath:(filename) => {
        var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
        return splitPathRe.exec(filename).slice(1);
      },
  normalizeArray:(parts, allowAboveRoot) => {
        // if the path tries to go above the root, `up` ends up > 0
        var up = 0;
        for (var i = parts.length - 1; i >= 0; i--) {
          var last = parts[i];
          if (last === '.') {
            parts.splice(i, 1);
          } else if (last === '..') {
            parts.splice(i, 1);
            up++;
          } else if (up) {
            parts.splice(i, 1);
            up--;
          }
        }
        // if the path is allowed to go above the root, restore leading ..s
        if (allowAboveRoot) {
          for (; up; up--) {
            parts.unshift('..');
          }
        }
        return parts;
      },
  normalize:(path) => {
        var isAbsolute = PATH.isAbs(path),
            trailingSlash = path.slice(-1) === '/';
        // Normalize the path
        path = PATH.normalizeArray(path.split('/').filter((p) => !!p), !isAbsolute).join('/');
        if (!path && !isAbsolute) {
          path = '.';
        }
        if (path && trailingSlash) {
          path += '/';
        }
        return (isAbsolute ? '/' : '') + path;
      },
  dirname:(path) => {
        var result = PATH.splitPath(path),
            root = result[0],
            dir = result[1];
        if (!root && !dir) {
          // No dirname whatsoever
          return '.';
        }
        if (dir) {
          // It has a dirname, strip trailing slash
          dir = dir.slice(0, -1);
        }
        return root + dir;
      },
  basename:(path) => path && path.match(/([^\/]+|\/)\/*$/)[1],
  join:(...paths) => PATH.normalize(paths.join('/')),
  join2:(l, r) => PATH.normalize(l + '/' + r),
  };
  
  var initRandomFill = () => {
      // This block is not needed on v19+ since crypto.getRandomValues is builtin
      if (ENVIRONMENT_IS_NODE) {
        var nodeCrypto = require('crypto');
        return (view) => nodeCrypto.randomFillSync(view);
      }
  
      return (view) => crypto.getRandomValues(view);
    };
  var randomFill = (view) => {
      // Lazily init on the first invocation.
      (randomFill = initRandomFill())(view);
    };
  
  
  
  var PATH_FS = {
  resolve:(...args) => {
        var resolvedPath = '',
          resolvedAbsolute = false;
        for (var i = args.length - 1; i >= -1 && !resolvedAbsolute; i--) {
          var path = (i >= 0) ? args[i] : FS.cwd();
          // Skip empty and invalid entries
          if (typeof path != 'string') {
            throw new TypeError('Arguments to path.resolve must be strings');
          } else if (!path) {
            return ''; // an invalid portion invalidates the whole thing
          }
          resolvedPath = path + '/' + resolvedPath;
          resolvedAbsolute = PATH.isAbs(path);
        }
        // At this point the path should be resolved to a full absolute path, but
        // handle relative paths to be safe (might happen when process.cwd() fails)
        resolvedPath = PATH.normalizeArray(resolvedPath.split('/').filter((p) => !!p), !resolvedAbsolute).join('/');
        return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
      },
  relative:(from, to) => {
        from = PATH_FS.resolve(from).slice(1);
        to = PATH_FS.resolve(to).slice(1);
        function trim(arr) {
          var start = 0;
          for (; start < arr.length; start++) {
            if (arr[start] !== '') break;
          }
          var end = arr.length - 1;
          for (; end >= 0; end--) {
            if (arr[end] !== '') break;
          }
          if (start > end) return [];
          return arr.slice(start, end - start + 1);
        }
        var fromParts = trim(from.split('/'));
        var toParts = trim(to.split('/'));
        var length = Math.min(fromParts.length, toParts.length);
        var samePartsLength = length;
        for (var i = 0; i < length; i++) {
          if (fromParts[i] !== toParts[i]) {
            samePartsLength = i;
            break;
          }
        }
        var outputParts = [];
        for (var i = samePartsLength; i < fromParts.length; i++) {
          outputParts.push('..');
        }
        outputParts = outputParts.concat(toParts.slice(samePartsLength));
        return outputParts.join('/');
      },
  };
  
  
  
  var FS_stdin_getChar_buffer = [];
  
  var lengthBytesUTF8 = (str) => {
      var len = 0;
      for (var i = 0; i < str.length; ++i) {
        // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code
        // unit, not a Unicode code point of the character! So decode
        // UTF16->UTF32->UTF8.
        // See http://unicode.org/faq/utf_bom.html#utf16-3
        var c = str.charCodeAt(i); // possibly a lead surrogate
        if (c <= 0x7F) {
          len++;
        } else if (c <= 0x7FF) {
          len += 2;
        } else if (c >= 0xD800 && c <= 0xDFFF) {
          len += 4; ++i;
        } else {
          len += 3;
        }
      }
      return len;
    };
  
  var stringToUTF8Array = (str, heap, outIdx, maxBytesToWrite) => {
      assert(typeof str === 'string', `stringToUTF8Array expects a string (got ${typeof str})`);
      // Parameter maxBytesToWrite is not optional. Negative values, 0, null,
      // undefined and false each don't write out any bytes.
      if (!(maxBytesToWrite > 0))
        return 0;
  
      var startIdx = outIdx;
      var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator.
      for (var i = 0; i < str.length; ++i) {
        // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code
        // unit, not a Unicode code point of the character! So decode
        // UTF16->UTF32->UTF8.
        // See http://unicode.org/faq/utf_bom.html#utf16-3
        // For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description
        // and https://www.ietf.org/rfc/rfc2279.txt
        // and https://tools.ietf.org/html/rfc3629
        var u = str.charCodeAt(i); // possibly a lead surrogate
        if (u >= 0xD800 && u <= 0xDFFF) {
          var u1 = str.charCodeAt(++i);
          u = 0x10000 + ((u & 0x3FF) << 10) | (u1 & 0x3FF);
        }
        if (u <= 0x7F) {
          if (outIdx >= endIdx) break;
          heap[outIdx++] = u;
        } else if (u <= 0x7FF) {
          if (outIdx + 1 >= endIdx) break;
          heap[outIdx++] = 0xC0 | (u >> 6);
          heap[outIdx++] = 0x80 | (u & 63);
        } else if (u <= 0xFFFF) {
          if (outIdx + 2 >= endIdx) break;
          heap[outIdx++] = 0xE0 | (u >> 12);
          heap[outIdx++] = 0x80 | ((u >> 6) & 63);
          heap[outIdx++] = 0x80 | (u & 63);
        } else {
          if (outIdx + 3 >= endIdx) break;
          if (u > 0x10FFFF) warnOnce('Invalid Unicode code point ' + ptrToString(u) + ' encountered when serializing a JS string to a UTF-8 string in wasm memory! (Valid unicode code points should be in range 0-0x10FFFF).');
          heap[outIdx++] = 0xF0 | (u >> 18);
          heap[outIdx++] = 0x80 | ((u >> 12) & 63);
          heap[outIdx++] = 0x80 | ((u >> 6) & 63);
          heap[outIdx++] = 0x80 | (u & 63);
        }
      }
      // Null-terminate the pointer to the buffer.
      heap[outIdx] = 0;
      return outIdx - startIdx;
    };
  /** @type {function(string, boolean=, number=)} */
  var intArrayFromString = (stringy, dontAddNull, length) => {
      var len = length > 0 ? length : lengthBytesUTF8(stringy)+1;
      var u8array = new Array(len);
      var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length);
      if (dontAddNull) u8array.length = numBytesWritten;
      return u8array;
    };
  var FS_stdin_getChar = () => {
      if (!FS_stdin_getChar_buffer.length) {
        var result = null;
        if (ENVIRONMENT_IS_NODE) {
          // we will read data by chunks of BUFSIZE
          var BUFSIZE = 256;
          var buf = Buffer.alloc(BUFSIZE);
          var bytesRead = 0;
  
          // For some reason we must suppress a closure warning here, even though
          // fd definitely exists on process.stdin, and is even the proper way to
          // get the fd of stdin,
          // https://github.com/nodejs/help/issues/2136#issuecomment-523649904
          // This started to happen after moving this logic out of library_tty.js,
          // so it is related to the surrounding code in some unclear manner.
          /** @suppress {missingProperties} */
          var fd = process.stdin.fd;
  
          try {
            bytesRead = fs.readSync(fd, buf, 0, BUFSIZE);
          } catch(e) {
            // Cross-platform differences: on Windows, reading EOF throws an
            // exception, but on other OSes, reading EOF returns 0. Uniformize
            // behavior by treating the EOF exception to return 0.
            if (e.toString().includes('EOF')) bytesRead = 0;
            else throw e;
          }
  
          if (bytesRead > 0) {
            result = buf.slice(0, bytesRead).toString('utf-8');
          }
        } else
        if (typeof window != 'undefined' &&
          typeof window.prompt == 'function') {
          // Browser.
          result = window.prompt('Input: ');  // returns null on cancel
          if (result !== null) {
            result += '\n';
          }
        } else
        {}
        if (!result) {
          return null;
        }
        FS_stdin_getChar_buffer = intArrayFromString(result, true);
      }
      return FS_stdin_getChar_buffer.shift();
    };
  var TTY = {
  ttys:[],
  init() {
        // https://github.com/emscripten-core/emscripten/pull/1555
        // if (ENVIRONMENT_IS_NODE) {
        //   // currently, FS.init does not distinguish if process.stdin is a file or TTY
        //   // device, it always assumes it's a TTY device. because of this, we're forcing
        //   // process.stdin to UTF8 encoding to at least make stdin reading compatible
        //   // with text files until FS.init can be refactored.
        //   process.stdin.setEncoding('utf8');
        // }
      },
  shutdown() {
        // https://github.com/emscripten-core/emscripten/pull/1555
        // if (ENVIRONMENT_IS_NODE) {
        //   // inolen: any idea as to why node -e 'process.stdin.read()' wouldn't exit immediately (with process.stdin being a tty)?
        //   // isaacs: because now it's reading from the stream, you've expressed interest in it, so that read() kicks off a _read() which creates a ReadReq operation
        //   // inolen: I thought read() in that case was a synchronous operation that just grabbed some amount of buffered data if it exists?
        //   // isaacs: it is. but it also triggers a _read() call, which calls readStart() on the handle
        //   // isaacs: do process.stdin.pause() and i'd think it'd probably close the pending call
        //   process.stdin.pause();
        // }
      },
  register(dev, ops) {
        TTY.ttys[dev] = { input: [], output: [], ops: ops };
        FS.registerDevice(dev, TTY.stream_ops);
      },
  stream_ops:{
  open(stream) {
          var tty = TTY.ttys[stream.node.rdev];
          if (!tty) {
            throw new FS.ErrnoError(43);
          }
          stream.tty = tty;
          stream.seekable = false;
        },
  close(stream) {
          // flush any pending line data
          stream.tty.ops.fsync(stream.tty);
        },
  fsync(stream) {
          stream.tty.ops.fsync(stream.tty);
        },
  read(stream, buffer, offset, length, pos /* ignored */) {
          if (!stream.tty || !stream.tty.ops.get_char) {
            throw new FS.ErrnoError(60);
          }
          var bytesRead = 0;
          for (var i = 0; i < length; i++) {
            var result;
            try {
              result = stream.tty.ops.get_char(stream.tty);
            } catch (e) {
              throw new FS.ErrnoError(29);
            }
            if (result === undefined && bytesRead === 0) {
              throw new FS.ErrnoError(6);
            }
            if (result === null || result === undefined) break;
            bytesRead++;
            buffer[offset+i] = result;
          }
          if (bytesRead) {
            stream.node.atime = Date.now();
          }
          return bytesRead;
        },
  write(stream, buffer, offset, length, pos) {
          if (!stream.tty || !stream.tty.ops.put_char) {
            throw new FS.ErrnoError(60);
          }
          try {
            for (var i = 0; i < length; i++) {
              stream.tty.ops.put_char(stream.tty, buffer[offset+i]);
            }
          } catch (e) {
            throw new FS.ErrnoError(29);
          }
          if (length) {
            stream.node.mtime = stream.node.ctime = Date.now();
          }
          return i;
        },
  },
  default_tty_ops:{
  get_char(tty) {
          return FS_stdin_getChar();
        },
  put_char(tty, val) {
          if (val === null || val === 10) {
            out(UTF8ArrayToString(tty.output));
            tty.output = [];
          } else {
            if (val != 0) tty.output.push(val); // val == 0 would cut text output off in the middle.
          }
        },
  fsync(tty) {
          if (tty.output?.length > 0) {
            out(UTF8ArrayToString(tty.output));
            tty.output = [];
          }
        },
  ioctl_tcgets(tty) {
          // typical setting
          return {
            c_iflag: 25856,
            c_oflag: 5,
            c_cflag: 191,
            c_lflag: 35387,
            c_cc: [
              0x03, 0x1c, 0x7f, 0x15, 0x04, 0x00, 0x01, 0x00, 0x11, 0x13, 0x1a, 0x00,
              0x12, 0x0f, 0x17, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
              0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            ]
          };
        },
  ioctl_tcsets(tty, optional_actions, data) {
          // currently just ignore
          return 0;
        },
  ioctl_tiocgwinsz(tty) {
          return [24, 80];
        },
  },
  default_tty1_ops:{
  put_char(tty, val) {
          if (val === null || val === 10) {
            err(UTF8ArrayToString(tty.output));
            tty.output = [];
          } else {
            if (val != 0) tty.output.push(val);
          }
        },
  fsync(tty) {
          if (tty.output?.length > 0) {
            err(UTF8ArrayToString(tty.output));
            tty.output = [];
          }
        },
  },
  };
  
  
  var zeroMemory = (ptr, size) => HEAPU8.fill(0, ptr, ptr + size);
  
  var alignMemory = (size, alignment) => {
      assert(alignment, "alignment argument is required");
      return Math.ceil(size / alignment) * alignment;
    };
  var mmapAlloc = (size) => {
      size = alignMemory(size, 65536);
      var ptr = _emscripten_builtin_memalign(65536, size);
      if (ptr) zeroMemory(ptr, size);
      return ptr;
    };
  var MEMFS = {
  ops_table:null,
  mount(mount) {
        return MEMFS.createNode(null, '/', 16895, 0);
      },
  createNode(parent, name, mode, dev) {
        if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
          // no supported
          throw new FS.ErrnoError(63);
        }
        MEMFS.ops_table ||= {
          dir: {
            node: {
              getattr: MEMFS.node_ops.getattr,
              setattr: MEMFS.node_ops.setattr,
              lookup: MEMFS.node_ops.lookup,
              mknod: MEMFS.node_ops.mknod,
              rename: MEMFS.node_ops.rename,
              unlink: MEMFS.node_ops.unlink,
              rmdir: MEMFS.node_ops.rmdir,
              readdir: MEMFS.node_ops.readdir,
              symlink: MEMFS.node_ops.symlink
            },
            stream: {
              llseek: MEMFS.stream_ops.llseek
            }
          },
          file: {
            node: {
              getattr: MEMFS.node_ops.getattr,
              setattr: MEMFS.node_ops.setattr
            },
            stream: {
              llseek: MEMFS.stream_ops.llseek,
              read: MEMFS.stream_ops.read,
              write: MEMFS.stream_ops.write,
              mmap: MEMFS.stream_ops.mmap,
              msync: MEMFS.stream_ops.msync
            }
          },
          link: {
            node: {
              getattr: MEMFS.node_ops.getattr,
              setattr: MEMFS.node_ops.setattr,
              readlink: MEMFS.node_ops.readlink
            },
            stream: {}
          },
          chrdev: {
            node: {
              getattr: MEMFS.node_ops.getattr,
              setattr: MEMFS.node_ops.setattr
            },
            stream: FS.chrdev_stream_ops
          }
        };
        var node = FS.createNode(parent, name, mode, dev);
        if (FS.isDir(node.mode)) {
          node.node_ops = MEMFS.ops_table.dir.node;
          node.stream_ops = MEMFS.ops_table.dir.stream;
          node.contents = {};
        } else if (FS.isFile(node.mode)) {
          node.node_ops = MEMFS.ops_table.file.node;
          node.stream_ops = MEMFS.ops_table.file.stream;
          node.usedBytes = 0; // The actual number of bytes used in the typed array, as opposed to contents.length which gives the whole capacity.
          // When the byte data of the file is populated, this will point to either a typed array, or a normal JS array. Typed arrays are preferred
          // for performance, and used by default. However, typed arrays are not resizable like normal JS arrays are, so there is a small disk size
          // penalty involved for appending file writes that continuously grow a file similar to std::vector capacity vs used -scheme.
          node.contents = null; 
        } else if (FS.isLink(node.mode)) {
          node.node_ops = MEMFS.ops_table.link.node;
          node.stream_ops = MEMFS.ops_table.link.stream;
        } else if (FS.isChrdev(node.mode)) {
          node.node_ops = MEMFS.ops_table.chrdev.node;
          node.stream_ops = MEMFS.ops_table.chrdev.stream;
        }
        node.atime = node.mtime = node.ctime = Date.now();
        // add the new node to the parent
        if (parent) {
          parent.contents[name] = node;
          parent.atime = parent.mtime = parent.ctime = node.atime;
        }
        return node;
      },
  getFileDataAsTypedArray(node) {
        if (!node.contents) return new Uint8Array(0);
        if (node.contents.subarray) return node.contents.subarray(0, node.usedBytes); // Make sure to not return excess unused bytes.
        return new Uint8Array(node.contents);
      },
  expandFileStorage(node, newCapacity) {
        var prevCapacity = node.contents ? node.contents.length : 0;
        if (prevCapacity >= newCapacity) return; // No need to expand, the storage was already large enough.
        // Don't expand strictly to the given requested limit if it's only a very small increase, but instead geometrically grow capacity.
        // For small filesizes (<1MB), perform size*2 geometric increase, but for large sizes, do a much more conservative size*1.125 increase to
        // avoid overshooting the allocation cap by a very large margin.
        var CAPACITY_DOUBLING_MAX = 1024 * 1024;
        newCapacity = Math.max(newCapacity, (prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2.0 : 1.125)) >>> 0);
        if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256); // At minimum allocate 256b for each file when expanding.
        var oldContents = node.contents;
        node.contents = new Uint8Array(newCapacity); // Allocate new storage.
        if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0); // Copy old data over to the new storage.
      },
  resizeFileStorage(node, newSize) {
        if (node.usedBytes == newSize) return;
        if (newSize == 0) {
          node.contents = null; // Fully decommit when requesting a resize to zero.
          node.usedBytes = 0;
        } else {
          var oldContents = node.contents;
          node.contents = new Uint8Array(newSize); // Allocate new storage.
          if (oldContents) {
            node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes))); // Copy old data over to the new storage.
          }
          node.usedBytes = newSize;
        }
      },
  node_ops:{
  getattr(node) {
          var attr = {};
          // device numbers reuse inode numbers.
          attr.dev = FS.isChrdev(node.mode) ? node.id : 1;
          attr.ino = node.id;
          attr.mode = node.mode;
          attr.nlink = 1;
          attr.uid = 0;
          attr.gid = 0;
          attr.rdev = node.rdev;
          if (FS.isDir(node.mode)) {
            attr.size = 4096;
          } else if (FS.isFile(node.mode)) {
            attr.size = node.usedBytes;
          } else if (FS.isLink(node.mode)) {
            attr.size = node.link.length;
          } else {
            attr.size = 0;
          }
          attr.atime = new Date(node.atime);
          attr.mtime = new Date(node.mtime);
          attr.ctime = new Date(node.ctime);
          // NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize),
          //       but this is not required by the standard.
          attr.blksize = 4096;
          attr.blocks = Math.ceil(attr.size / attr.blksize);
          return attr;
        },
  setattr(node, attr) {
          for (const key of ["mode", "atime", "mtime", "ctime"]) {
            if (attr[key] != null) {
              node[key] = attr[key];
            }
          }
          if (attr.size !== undefined) {
            MEMFS.resizeFileStorage(node, attr.size);
          }
        },
  lookup(parent, name) {
          throw new FS.ErrnoError(44);
        },
  mknod(parent, name, mode, dev) {
          return MEMFS.createNode(parent, name, mode, dev);
        },
  rename(old_node, new_dir, new_name) {
          var new_node;
          try {
            new_node = FS.lookupNode(new_dir, new_name);
          } catch (e) {}
          if (new_node) {
            if (FS.isDir(old_node.mode)) {
              // if we're overwriting a directory at new_name, make sure it's empty.
              for (var i in new_node.contents) {
                throw new FS.ErrnoError(55);
              }
            }
            FS.hashRemoveNode(new_node);
          }
          // do the internal rewiring
          delete old_node.parent.contents[old_node.name];
          new_dir.contents[new_name] = old_node;
          old_node.name = new_name;
          new_dir.ctime = new_dir.mtime = old_node.parent.ctime = old_node.parent.mtime = Date.now();
        },
  unlink(parent, name) {
          delete parent.contents[name];
          parent.ctime = parent.mtime = Date.now();
        },
  rmdir(parent, name) {
          var node = FS.lookupNode(parent, name);
          for (var i in node.contents) {
            throw new FS.ErrnoError(55);
          }
          delete parent.contents[name];
          parent.ctime = parent.mtime = Date.now();
        },
  readdir(node) {
          return ['.', '..', ...Object.keys(node.contents)];
        },
  symlink(parent, newname, oldpath) {
          var node = MEMFS.createNode(parent, newname, 0o777 | 40960, 0);
          node.link = oldpath;
          return node;
        },
  readlink(node) {
          if (!FS.isLink(node.mode)) {
            throw new FS.ErrnoError(28);
          }
          return node.link;
        },
  },
  stream_ops:{
  read(stream, buffer, offset, length, position) {
          var contents = stream.node.contents;
          if (position >= stream.node.usedBytes) return 0;
          var size = Math.min(stream.node.usedBytes - position, length);
          assert(size >= 0);
          if (size > 8 && contents.subarray) { // non-trivial, and typed array
            buffer.set(contents.subarray(position, position + size), offset);
          } else {
            for (var i = 0; i < size; i++) buffer[offset + i] = contents[position + i];
          }
          return size;
        },
  write(stream, buffer, offset, length, position, canOwn) {
          // The data buffer should be a typed array view
          assert(!(buffer instanceof ArrayBuffer));
          // If the buffer is located in main memory (HEAP), and if
          // memory can grow, we can't hold on to references of the
          // memory buffer, as they may get invalidated. That means we
          // need to do copy its contents.
          if (buffer.buffer === HEAP8.buffer) {
            canOwn = false;
          }
  
          if (!length) return 0;
          var node = stream.node;
          node.mtime = node.ctime = Date.now();
  
          if (buffer.subarray && (!node.contents || node.contents.subarray)) { // This write is from a typed array to a typed array?
            if (canOwn) {
              assert(position === 0, 'canOwn must imply no weird position inside the file');
              node.contents = buffer.subarray(offset, offset + length);
              node.usedBytes = length;
              return length;
            } else if (node.usedBytes === 0 && position === 0) { // If this is a simple first write to an empty file, do a fast set since we don't need to care about old data.
              node.contents = buffer.slice(offset, offset + length);
              node.usedBytes = length;
              return length;
            } else if (position + length <= node.usedBytes) { // Writing to an already allocated and used subrange of the file?
              node.contents.set(buffer.subarray(offset, offset + length), position);
              return length;
            }
          }
  
          // Appending to an existing file and we need to reallocate, or source data did not come as a typed array.
          MEMFS.expandFileStorage(node, position+length);
          if (node.contents.subarray && buffer.subarray) {
            // Use typed array write which is available.
            node.contents.set(buffer.subarray(offset, offset + length), position);
          } else {
            for (var i = 0; i < length; i++) {
             node.contents[position + i] = buffer[offset + i]; // Or fall back to manual write if not.
            }
          }
          node.usedBytes = Math.max(node.usedBytes, position + length);
          return length;
        },
  llseek(stream, offset, whence) {
          var position = offset;
          if (whence === 1) {
            position += stream.position;
          } else if (whence === 2) {
            if (FS.isFile(stream.node.mode)) {
              position += stream.node.usedBytes;
            }
          }
          if (position < 0) {
            throw new FS.ErrnoError(28);
          }
          return position;
        },
  mmap(stream, length, position, prot, flags) {
          if (!FS.isFile(stream.node.mode)) {
            throw new FS.ErrnoError(43);
          }
          var ptr;
          var allocated;
          var contents = stream.node.contents;
          // Only make a new copy when MAP_PRIVATE is specified.
          if (!(flags & 2) && contents && contents.buffer === HEAP8.buffer) {
            // We can't emulate MAP_SHARED when the file is not backed by the
            // buffer we're mapping to (e.g. the HEAP buffer).
            allocated = false;
            ptr = contents.byteOffset;
          } else {
            allocated = true;
            ptr = mmapAlloc(length);
            if (!ptr) {
              throw new FS.ErrnoError(48);
            }
            if (contents) {
              // Try to avoid unnecessary slices.
              if (position > 0 || position + length < contents.length) {
                if (contents.subarray) {
                  contents = contents.subarray(position, position + length);
                } else {
                  contents = Array.prototype.slice.call(contents, position, position + length);
                }
              }
              HEAP8.set(contents, ptr);
            }
          }
          return { ptr, allocated };
        },
  msync(stream, buffer, offset, length, mmapFlags) {
          MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false);
          // should we check if bytesWritten and length are the same?
          return 0;
        },
  },
  };
  
  var asyncLoad = async (url) => {
      var arrayBuffer = await readAsync(url);
      assert(arrayBuffer, `Loading data file "${url}" failed (no arrayBuffer).`);
      return new Uint8Array(arrayBuffer);
    };
  
  
  var FS_createDataFile = (parent, name, fileData, canRead, canWrite, canOwn) => {
      FS.createDataFile(parent, name, fileData, canRead, canWrite, canOwn);
    };
  
  var preloadPlugins = Module['preloadPlugins'] || [];
  var FS_handledByPreloadPlugin = (byteArray, fullname, finish, onerror) => {
      // Ensure plugins are ready.
      if (typeof Browser != 'undefined') Browser.init();
  
      var handled = false;
      preloadPlugins.forEach((plugin) => {
        if (handled) return;
        if (plugin['canHandle'](fullname)) {
          plugin['handle'](byteArray, fullname, finish, onerror);
          handled = true;
        }
      });
      return handled;
    };
  var FS_createPreloadedFile = (parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) => {
      // TODO we should allow people to just pass in a complete filename instead
      // of parent and name being that we just join them anyways
      var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent;
      var dep = getUniqueRunDependency(`cp ${fullname}`); // might have several active requests for the same fullname
      function processData(byteArray) {
        function finish(byteArray) {
          preFinish?.();
          if (!dontCreateFile) {
            FS_createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
          }
          onload?.();
          removeRunDependency(dep);
        }
        if (FS_handledByPreloadPlugin(byteArray, fullname, finish, () => {
          onerror?.();
          removeRunDependency(dep);
        })) {
          return;
        }
        finish(byteArray);
      }
      addRunDependency(dep);
      if (typeof url == 'string') {
        asyncLoad(url).then(processData, onerror);
      } else {
        processData(url);
      }
    };
  
  var FS_modeStringToFlags = (str) => {
      var flagModes = {
        'r': 0,
        'r+': 2,
        'w': 512 | 64 | 1,
        'w+': 512 | 64 | 2,
        'a': 1024 | 64 | 1,
        'a+': 1024 | 64 | 2,
      };
      var flags = flagModes[str];
      if (typeof flags == 'undefined') {
        throw new Error(`Unknown file open mode: ${str}`);
      }
      return flags;
    };
  
  var FS_getMode = (canRead, canWrite) => {
      var mode = 0;
      if (canRead) mode |= 292 | 73;
      if (canWrite) mode |= 146;
      return mode;
    };
  
  
  
  
  
  
  var strError = (errno) => UTF8ToString(_strerror(errno));
  
  var ERRNO_CODES = {
      'EPERM': 63,
      'ENOENT': 44,
      'ESRCH': 71,
      'EINTR': 27,
      'EIO': 29,
      'ENXIO': 60,
      'E2BIG': 1,
      'ENOEXEC': 45,
      'EBADF': 8,
      'ECHILD': 12,
      'EAGAIN': 6,
      'EWOULDBLOCK': 6,
      'ENOMEM': 48,
      'EACCES': 2,
      'EFAULT': 21,
      'ENOTBLK': 105,
      'EBUSY': 10,
      'EEXIST': 20,
      'EXDEV': 75,
      'ENODEV': 43,
      'ENOTDIR': 54,
      'EISDIR': 31,
      'EINVAL': 28,
      'ENFILE': 41,
      'EMFILE': 33,
      'ENOTTY': 59,
      'ETXTBSY': 74,
      'EFBIG': 22,
      'ENOSPC': 51,
      'ESPIPE': 70,
      'EROFS': 69,
      'EMLINK': 34,
      'EPIPE': 64,
      'EDOM': 18,
      'ERANGE': 68,
      'ENOMSG': 49,
      'EIDRM': 24,
      'ECHRNG': 106,
      'EL2NSYNC': 156,
      'EL3HLT': 107,
      'EL3RST': 108,
      'ELNRNG': 109,
      'EUNATCH': 110,
      'ENOCSI': 111,
      'EL2HLT': 112,
      'EDEADLK': 16,
      'ENOLCK': 46,
      'EBADE': 113,
      'EBADR': 114,
      'EXFULL': 115,
      'ENOANO': 104,
      'EBADRQC': 103,
      'EBADSLT': 102,
      'EDEADLOCK': 16,
      'EBFONT': 101,
      'ENOSTR': 100,
      'ENODATA': 116,
      'ETIME': 117,
      'ENOSR': 118,
      'ENONET': 119,
      'ENOPKG': 120,
      'EREMOTE': 121,
      'ENOLINK': 47,
      'EADV': 122,
      'ESRMNT': 123,
      'ECOMM': 124,
      'EPROTO': 65,
      'EMULTIHOP': 36,
      'EDOTDOT': 125,
      'EBADMSG': 9,
      'ENOTUNIQ': 126,
      'EBADFD': 127,
      'EREMCHG': 128,
      'ELIBACC': 129,
      'ELIBBAD': 130,
      'ELIBSCN': 131,
      'ELIBMAX': 132,
      'ELIBEXEC': 133,
      'ENOSYS': 52,
      'ENOTEMPTY': 55,
      'ENAMETOOLONG': 37,
      'ELOOP': 32,
      'EOPNOTSUPP': 138,
      'EPFNOSUPPORT': 139,
      'ECONNRESET': 15,
      'ENOBUFS': 42,
      'EAFNOSUPPORT': 5,
      'EPROTOTYPE': 67,
      'ENOTSOCK': 57,
      'ENOPROTOOPT': 50,
      'ESHUTDOWN': 140,
      'ECONNREFUSED': 14,
      'EADDRINUSE': 3,
      'ECONNABORTED': 13,
      'ENETUNREACH': 40,
      'ENETDOWN': 38,
      'ETIMEDOUT': 73,
      'EHOSTDOWN': 142,
      'EHOSTUNREACH': 23,
      'EINPROGRESS': 26,
      'EALREADY': 7,
      'EDESTADDRREQ': 17,
      'EMSGSIZE': 35,
      'EPROTONOSUPPORT': 66,
      'ESOCKTNOSUPPORT': 137,
      'EADDRNOTAVAIL': 4,
      'ENETRESET': 39,
      'EISCONN': 30,
      'ENOTCONN': 53,
      'ETOOMANYREFS': 141,
      'EUSERS': 136,
      'EDQUOT': 19,
      'ESTALE': 72,
      'ENOTSUP': 138,
      'ENOMEDIUM': 148,
      'EILSEQ': 25,
      'EOVERFLOW': 61,
      'ECANCELED': 11,
      'ENOTRECOVERABLE': 56,
      'EOWNERDEAD': 62,
      'ESTRPIPE': 135,
    };
  var FS = {
  root:null,
  mounts:[],
  devices:{
  },
  streams:[],
  nextInode:1,
  nameTable:null,
  currentPath:"/",
  initialized:false,
  ignorePermissions:true,
  filesystems:null,
  syncFSRequests:0,
  readFiles:{
  },
  ErrnoError:class extends Error {
        name = 'ErrnoError';
        // We set the `name` property to be able to identify `FS.ErrnoError`
        // - the `name` is a standard ECMA-262 property of error objects. Kind of good to have it anyway.
        // - when using PROXYFS, an error can come from an underlying FS
        // as different FS objects have their own FS.ErrnoError each,
        // the test `err instanceof FS.ErrnoError` won't detect an error coming from another filesystem, causing bugs.
        // we'll use the reliable test `err.name == "ErrnoError"` instead
        constructor(errno) {
          super(runtimeInitialized ? strError(errno) : '');
          this.errno = errno;
          for (var key in ERRNO_CODES) {
            if (ERRNO_CODES[key] === errno) {
              this.code = key;
              break;
            }
          }
        }
      },
  FSStream:class {
        shared = {};
        get object() {
          return this.node;
        }
        set object(val) {
          this.node = val;
        }
        get isRead() {
          return (this.flags & 2097155) !== 1;
        }
        get isWrite() {
          return (this.flags & 2097155) !== 0;
        }
        get isAppend() {
          return (this.flags & 1024);
        }
        get flags() {
          return this.shared.flags;
        }
        set flags(val) {
          this.shared.flags = val;
        }
        get position() {
          return this.shared.position;
        }
        set position(val) {
          this.shared.position = val;
        }
      },
  FSNode:class {
        node_ops = {};
        stream_ops = {};
        readMode = 292 | 73;
        writeMode = 146;
        mounted = null;
        constructor(parent, name, mode, rdev) {
          if (!parent) {
            parent = this;  // root node sets parent to itself
          }
          this.parent = parent;
          this.mount = parent.mount;
          this.id = FS.nextInode++;
          this.name = name;
          this.mode = mode;
          this.rdev = rdev;
          this.atime = this.mtime = this.ctime = Date.now();
        }
        get read() {
          return (this.mode & this.readMode) === this.readMode;
        }
        set read(val) {
          val ? this.mode |= this.readMode : this.mode &= ~this.readMode;
        }
        get write() {
          return (this.mode & this.writeMode) === this.writeMode;
        }
        set write(val) {
          val ? this.mode |= this.writeMode : this.mode &= ~this.writeMode;
        }
        get isFolder() {
          return FS.isDir(this.mode);
        }
        get isDevice() {
          return FS.isChrdev(this.mode);
        }
      },
  lookupPath(path, opts = {}) {
        if (!path) {
          throw new FS.ErrnoError(44);
        }
        opts.follow_mount ??= true
  
        if (!PATH.isAbs(path)) {
          path = FS.cwd() + '/' + path;
        }
  
        // limit max consecutive symlinks to 40 (SYMLOOP_MAX).
        linkloop: for (var nlinks = 0; nlinks < 40; nlinks++) {
          // split the absolute path
          var parts = path.split('/').filter((p) => !!p);
  
          // start at the root
          var current = FS.root;
          var current_path = '/';
  
          for (var i = 0; i < parts.length; i++) {
            var islast = (i === parts.length-1);
            if (islast && opts.parent) {
              // stop resolving
              break;
            }
  
            if (parts[i] === '.') {
              continue;
            }
  
            if (parts[i] === '..') {
              current_path = PATH.dirname(current_path);
              current = current.parent;
              continue;
            }
  
            current_path = PATH.join2(current_path, parts[i]);
            try {
              current = FS.lookupNode(current, parts[i]);
            } catch (e) {
              // if noent_okay is true, suppress a ENOENT in the last component
              // and return an object with an undefined node. This is needed for
              // resolving symlinks in the path when creating a file.
              if ((e?.errno === 44) && islast && opts.noent_okay) {
                return { path: current_path };
              }
              throw e;
            }
  
            // jump to the mount's root node if this is a mountpoint
            if (FS.isMountpoint(current) && (!islast || opts.follow_mount)) {
              current = current.mounted.root;
            }
  
            // by default, lookupPath will not follow a symlink if it is the final path component.
            // setting opts.follow = true will override this behavior.
            if (FS.isLink(current.mode) && (!islast || opts.follow)) {
              if (!current.node_ops.readlink) {
                throw new FS.ErrnoError(52);
              }
              var link = current.node_ops.readlink(current);
              if (!PATH.isAbs(link)) {
                link = PATH.dirname(current_path) + '/' + link;
              }
              path = link + '/' + parts.slice(i + 1).join('/');
              continue linkloop;
            }
          }
          return { path: current_path, node: current };
        }
        throw new FS.ErrnoError(32);
      },
  getPath(node) {
        var path;
        while (true) {
          if (FS.isRoot(node)) {
            var mount = node.mount.mountpoint;
            if (!path) return mount;
            return mount[mount.length-1] !== '/' ? `${mount}/${path}` : mount + path;
          }
          path = path ? `${node.name}/${path}` : node.name;
          node = node.parent;
        }
      },
  hashName(parentid, name) {
        var hash = 0;
  
        for (var i = 0; i < name.length; i++) {
          hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0;
        }
        return ((parentid + hash) >>> 0) % FS.nameTable.length;
      },
  hashAddNode(node) {
        var hash = FS.hashName(node.parent.id, node.name);
        node.name_next = FS.nameTable[hash];
        FS.nameTable[hash] = node;
      },
  hashRemoveNode(node) {
        var hash = FS.hashName(node.parent.id, node.name);
        if (FS.nameTable[hash] === node) {
          FS.nameTable[hash] = node.name_next;
        } else {
          var current = FS.nameTable[hash];
          while (current) {
            if (current.name_next === node) {
              current.name_next = node.name_next;
              break;
            }
            current = current.name_next;
          }
        }
      },
  lookupNode(parent, name) {
        var errCode = FS.mayLookup(parent);
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        var hash = FS.hashName(parent.id, name);
        for (var node = FS.nameTable[hash]; node; node = node.name_next) {
          var nodeName = node.name;
          if (node.parent.id === parent.id && nodeName === name) {
            return node;
          }
        }
        // if we failed to find it in the cache, call into the VFS
        return FS.lookup(parent, name);
      },
  createNode(parent, name, mode, rdev) {
        assert(typeof parent == 'object')
        var node = new FS.FSNode(parent, name, mode, rdev);
  
        FS.hashAddNode(node);
  
        return node;
      },
  destroyNode(node) {
        FS.hashRemoveNode(node);
      },
  isRoot(node) {
        return node === node.parent;
      },
  isMountpoint(node) {
        return !!node.mounted;
      },
  isFile(mode) {
        return (mode & 61440) === 32768;
      },
  isDir(mode) {
        return (mode & 61440) === 16384;
      },
  isLink(mode) {
        return (mode & 61440) === 40960;
      },
  isChrdev(mode) {
        return (mode & 61440) === 8192;
      },
  isBlkdev(mode) {
        return (mode & 61440) === 24576;
      },
  isFIFO(mode) {
        return (mode & 61440) === 4096;
      },
  isSocket(mode) {
        return (mode & 49152) === 49152;
      },
  flagsToPermissionString(flag) {
        var perms = ['r', 'w', 'rw'][flag & 3];
        if ((flag & 512)) {
          perms += 'w';
        }
        return perms;
      },
  nodePermissions(node, perms) {
        if (FS.ignorePermissions) {
          return 0;
        }
        // return 0 if any user, group or owner bits are set.
        if (perms.includes('r') && !(node.mode & 292)) {
          return 2;
        } else if (perms.includes('w') && !(node.mode & 146)) {
          return 2;
        } else if (perms.includes('x') && !(node.mode & 73)) {
          return 2;
        }
        return 0;
      },
  mayLookup(dir) {
        if (!FS.isDir(dir.mode)) return 54;
        var errCode = FS.nodePermissions(dir, 'x');
        if (errCode) return errCode;
        if (!dir.node_ops.lookup) return 2;
        return 0;
      },
  mayCreate(dir, name) {
        if (!FS.isDir(dir.mode)) {
          return 54;
        }
        try {
          var node = FS.lookupNode(dir, name);
          return 20;
        } catch (e) {
        }
        return FS.nodePermissions(dir, 'wx');
      },
  mayDelete(dir, name, isdir) {
        var node;
        try {
          node = FS.lookupNode(dir, name);
        } catch (e) {
          return e.errno;
        }
        var errCode = FS.nodePermissions(dir, 'wx');
        if (errCode) {
          return errCode;
        }
        if (isdir) {
          if (!FS.isDir(node.mode)) {
            return 54;
          }
          if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) {
            return 10;
          }
        } else {
          if (FS.isDir(node.mode)) {
            return 31;
          }
        }
        return 0;
      },
  mayOpen(node, flags) {
        if (!node) {
          return 44;
        }
        if (FS.isLink(node.mode)) {
          return 32;
        } else if (FS.isDir(node.mode)) {
          if (FS.flagsToPermissionString(flags) !== 'r' // opening for write
              || (flags & (512 | 64))) { // TODO: check for O_SEARCH? (== search for dir only)
            return 31;
          }
        }
        return FS.nodePermissions(node, FS.flagsToPermissionString(flags));
      },
  checkOpExists(op, err) {
        if (!op) {
          throw new FS.ErrnoError(err);
        }
        return op;
      },
  MAX_OPEN_FDS:4096,
  nextfd() {
        for (var fd = 0; fd <= FS.MAX_OPEN_FDS; fd++) {
          if (!FS.streams[fd]) {
            return fd;
          }
        }
        throw new FS.ErrnoError(33);
      },
  getStreamChecked(fd) {
        var stream = FS.getStream(fd);
        if (!stream) {
          throw new FS.ErrnoError(8);
        }
        return stream;
      },
  getStream:(fd) => FS.streams[fd],
  createStream(stream, fd = -1) {
        assert(fd >= -1);
  
        // clone it, so we can return an instance of FSStream
        stream = Object.assign(new FS.FSStream(), stream);
        if (fd == -1) {
          fd = FS.nextfd();
        }
        stream.fd = fd;
        FS.streams[fd] = stream;
        return stream;
      },
  closeStream(fd) {
        FS.streams[fd] = null;
      },
  dupStream(origStream, fd = -1) {
        var stream = FS.createStream(origStream, fd);
        stream.stream_ops?.dup?.(stream);
        return stream;
      },
  doSetAttr(stream, node, attr) {
        var setattr = stream?.stream_ops.setattr;
        var arg = setattr ? stream : node;
        setattr ??= node.node_ops.setattr;
        FS.checkOpExists(setattr, 63)
        setattr(arg, attr);
      },
  chrdev_stream_ops:{
  open(stream) {
          var device = FS.getDevice(stream.node.rdev);
          // override node's stream ops with the device's
          stream.stream_ops = device.stream_ops;
          // forward the open call
          stream.stream_ops.open?.(stream);
        },
  llseek() {
          throw new FS.ErrnoError(70);
        },
  },
  major:(dev) => ((dev) >> 8),
  minor:(dev) => ((dev) & 0xff),
  makedev:(ma, mi) => ((ma) << 8 | (mi)),
  registerDevice(dev, ops) {
        FS.devices[dev] = { stream_ops: ops };
      },
  getDevice:(dev) => FS.devices[dev],
  getMounts(mount) {
        var mounts = [];
        var check = [mount];
  
        while (check.length) {
          var m = check.pop();
  
          mounts.push(m);
  
          check.push(...m.mounts);
        }
  
        return mounts;
      },
  syncfs(populate, callback) {
        if (typeof populate == 'function') {
          callback = populate;
          populate = false;
        }
  
        FS.syncFSRequests++;
  
        if (FS.syncFSRequests > 1) {
          err(`warning: ${FS.syncFSRequests} FS.syncfs operations in flight at once, probably just doing extra work`);
        }
  
        var mounts = FS.getMounts(FS.root.mount);
        var completed = 0;
  
        function doCallback(errCode) {
          assert(FS.syncFSRequests > 0);
          FS.syncFSRequests--;
          return callback(errCode);
        }
  
        function done(errCode) {
          if (errCode) {
            if (!done.errored) {
              done.errored = true;
              return doCallback(errCode);
            }
            return;
          }
          if (++completed >= mounts.length) {
            doCallback(null);
          }
        };
  
        // sync all mounts
        mounts.forEach((mount) => {
          if (!mount.type.syncfs) {
            return done(null);
          }
          mount.type.syncfs(mount, populate, done);
        });
      },
  mount(type, opts, mountpoint) {
        if (typeof type == 'string') {
          // The filesystem was not included, and instead we have an error
          // message stored in the variable.
          throw type;
        }
        var root = mountpoint === '/';
        var pseudo = !mountpoint;
        var node;
  
        if (root && FS.root) {
          throw new FS.ErrnoError(10);
        } else if (!root && !pseudo) {
          var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
  
          mountpoint = lookup.path;  // use the absolute path
          node = lookup.node;
  
          if (FS.isMountpoint(node)) {
            throw new FS.ErrnoError(10);
          }
  
          if (!FS.isDir(node.mode)) {
            throw new FS.ErrnoError(54);
          }
        }
  
        var mount = {
          type,
          opts,
          mountpoint,
          mounts: []
        };
  
        // create a root node for the fs
        var mountRoot = type.mount(mount);
        mountRoot.mount = mount;
        mount.root = mountRoot;
  
        if (root) {
          FS.root = mountRoot;
        } else if (node) {
          // set as a mountpoint
          node.mounted = mount;
  
          // add the new mount to the current mount's children
          if (node.mount) {
            node.mount.mounts.push(mount);
          }
        }
  
        return mountRoot;
      },
  unmount(mountpoint) {
        var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
  
        if (!FS.isMountpoint(lookup.node)) {
          throw new FS.ErrnoError(28);
        }
  
        // destroy the nodes for this mount, and all its child mounts
        var node = lookup.node;
        var mount = node.mounted;
        var mounts = FS.getMounts(mount);
  
        Object.keys(FS.nameTable).forEach((hash) => {
          var current = FS.nameTable[hash];
  
          while (current) {
            var next = current.name_next;
  
            if (mounts.includes(current.mount)) {
              FS.destroyNode(current);
            }
  
            current = next;
          }
        });
  
        // no longer a mountpoint
        node.mounted = null;
  
        // remove this mount from the child mounts
        var idx = node.mount.mounts.indexOf(mount);
        assert(idx !== -1);
        node.mount.mounts.splice(idx, 1);
      },
  lookup(parent, name) {
        return parent.node_ops.lookup(parent, name);
      },
  mknod(path, mode, dev) {
        var lookup = FS.lookupPath(path, { parent: true });
        var parent = lookup.node;
        var name = PATH.basename(path);
        if (!name) {
          throw new FS.ErrnoError(28);
        }
        if (name === '.' || name === '..') {
          throw new FS.ErrnoError(20);
        }
        var errCode = FS.mayCreate(parent, name);
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        if (!parent.node_ops.mknod) {
          throw new FS.ErrnoError(63);
        }
        return parent.node_ops.mknod(parent, name, mode, dev);
      },
  statfs(path) {
        return FS.statfsNode(FS.lookupPath(path, {follow: true}).node);
      },
  statfsStream(stream) {
        // We keep a separate statfsStream function because noderawfs overrides
        // it. In noderawfs, stream.node is sometimes null. Instead, we need to
        // look at stream.path.
        return FS.statfsNode(stream.node);
      },
  statfsNode(node) {
        // NOTE: None of the defaults here are true. We're just returning safe and
        //       sane values. Currently nodefs and rawfs replace these defaults,
        //       other file systems leave them alone.
        var rtn = {
          bsize: 4096,
          frsize: 4096,
          blocks: 1e6,
          bfree: 5e5,
          bavail: 5e5,
          files: FS.nextInode,
          ffree: FS.nextInode - 1,
          fsid: 42,
          flags: 2,
          namelen: 255,
        };
  
        if (node.node_ops.statfs) {
          Object.assign(rtn, node.node_ops.statfs(node.mount.opts.root));
        }
        return rtn;
      },
  create(path, mode = 0o666) {
        mode &= 4095;
        mode |= 32768;
        return FS.mknod(path, mode, 0);
      },
  mkdir(path, mode = 0o777) {
        mode &= 511 | 512;
        mode |= 16384;
        return FS.mknod(path, mode, 0);
      },
  mkdirTree(path, mode) {
        var dirs = path.split('/');
        var d = '';
        for (var dir of dirs) {
          if (!dir) continue;
          d += '/' + dir;
          try {
            FS.mkdir(d, mode);
          } catch(e) {
            if (e.errno != 20) throw e;
          }
        }
      },
  mkdev(path, mode, dev) {
        if (typeof dev == 'undefined') {
          dev = mode;
          mode = 0o666;
        }
        mode |= 8192;
        return FS.mknod(path, mode, dev);
      },
  symlink(oldpath, newpath) {
        if (!PATH_FS.resolve(oldpath)) {
          throw new FS.ErrnoError(44);
        }
        var lookup = FS.lookupPath(newpath, { parent: true });
        var parent = lookup.node;
        if (!parent) {
          throw new FS.ErrnoError(44);
        }
        var newname = PATH.basename(newpath);
        var errCode = FS.mayCreate(parent, newname);
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        if (!parent.node_ops.symlink) {
          throw new FS.ErrnoError(63);
        }
        return parent.node_ops.symlink(parent, newname, oldpath);
      },
  rename(old_path, new_path) {
        var old_dirname = PATH.dirname(old_path);
        var new_dirname = PATH.dirname(new_path);
        var old_name = PATH.basename(old_path);
        var new_name = PATH.basename(new_path);
        // parents must exist
        var lookup, old_dir, new_dir;
  
        // let the errors from non existent directories percolate up
        lookup = FS.lookupPath(old_path, { parent: true });
        old_dir = lookup.node;
        lookup = FS.lookupPath(new_path, { parent: true });
        new_dir = lookup.node;
  
        if (!old_dir || !new_dir) throw new FS.ErrnoError(44);
        // need to be part of the same mount
        if (old_dir.mount !== new_dir.mount) {
          throw new FS.ErrnoError(75);
        }
        // source must exist
        var old_node = FS.lookupNode(old_dir, old_name);
        // old path should not be an ancestor of the new path
        var relative = PATH_FS.relative(old_path, new_dirname);
        if (relative.charAt(0) !== '.') {
          throw new FS.ErrnoError(28);
        }
        // new path should not be an ancestor of the old path
        relative = PATH_FS.relative(new_path, old_dirname);
        if (relative.charAt(0) !== '.') {
          throw new FS.ErrnoError(55);
        }
        // see if the new path already exists
        var new_node;
        try {
          new_node = FS.lookupNode(new_dir, new_name);
        } catch (e) {
          // not fatal
        }
        // early out if nothing needs to change
        if (old_node === new_node) {
          return;
        }
        // we'll need to delete the old entry
        var isdir = FS.isDir(old_node.mode);
        var errCode = FS.mayDelete(old_dir, old_name, isdir);
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        // need delete permissions if we'll be overwriting.
        // need create permissions if new doesn't already exist.
        errCode = new_node ?
          FS.mayDelete(new_dir, new_name, isdir) :
          FS.mayCreate(new_dir, new_name);
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        if (!old_dir.node_ops.rename) {
          throw new FS.ErrnoError(63);
        }
        if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) {
          throw new FS.ErrnoError(10);
        }
        // if we are going to change the parent, check write permissions
        if (new_dir !== old_dir) {
          errCode = FS.nodePermissions(old_dir, 'w');
          if (errCode) {
            throw new FS.ErrnoError(errCode);
          }
        }
        // remove the node from the lookup hash
        FS.hashRemoveNode(old_node);
        // do the underlying fs rename
        try {
          old_dir.node_ops.rename(old_node, new_dir, new_name);
          // update old node (we do this here to avoid each backend
          // needing to)
          old_node.parent = new_dir;
        } catch (e) {
          throw e;
        } finally {
          // add the node back to the hash (in case node_ops.rename
          // changed its name)
          FS.hashAddNode(old_node);
        }
      },
  rmdir(path) {
        var lookup = FS.lookupPath(path, { parent: true });
        var parent = lookup.node;
        var name = PATH.basename(path);
        var node = FS.lookupNode(parent, name);
        var errCode = FS.mayDelete(parent, name, true);
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        if (!parent.node_ops.rmdir) {
          throw new FS.ErrnoError(63);
        }
        if (FS.isMountpoint(node)) {
          throw new FS.ErrnoError(10);
        }
        parent.node_ops.rmdir(parent, name);
        FS.destroyNode(node);
      },
  readdir(path) {
        var lookup = FS.lookupPath(path, { follow: true });
        var node = lookup.node;
        var readdir = FS.checkOpExists(node.node_ops.readdir, 54);
        return readdir(node);
      },
  unlink(path) {
        var lookup = FS.lookupPath(path, { parent: true });
        var parent = lookup.node;
        if (!parent) {
          throw new FS.ErrnoError(44);
        }
        var name = PATH.basename(path);
        var node = FS.lookupNode(parent, name);
        var errCode = FS.mayDelete(parent, name, false);
        if (errCode) {
          // According to POSIX, we should map EISDIR to EPERM, but
          // we instead do what Linux does (and we must, as we use
          // the musl linux libc).
          throw new FS.ErrnoError(errCode);
        }
        if (!parent.node_ops.unlink) {
          throw new FS.ErrnoError(63);
        }
        if (FS.isMountpoint(node)) {
          throw new FS.ErrnoError(10);
        }
        parent.node_ops.unlink(parent, name);
        FS.destroyNode(node);
      },
  readlink(path) {
        var lookup = FS.lookupPath(path);
        var link = lookup.node;
        if (!link) {
          throw new FS.ErrnoError(44);
        }
        if (!link.node_ops.readlink) {
          throw new FS.ErrnoError(28);
        }
        return link.node_ops.readlink(link);
      },
  stat(path, dontFollow) {
        var lookup = FS.lookupPath(path, { follow: !dontFollow });
        var node = lookup.node;
        var getattr = FS.checkOpExists(node.node_ops.getattr, 63);
        return getattr(node);
      },
  fstat(fd) {
        var stream = FS.getStreamChecked(fd);
        var node = stream.node;
        var getattr = stream.stream_ops.getattr;
        var arg = getattr ? stream : node;
        getattr ??= node.node_ops.getattr;
        FS.checkOpExists(getattr, 63)
        return getattr(arg);
      },
  lstat(path) {
        return FS.stat(path, true);
      },
  doChmod(stream, node, mode, dontFollow) {
        FS.doSetAttr(stream, node, {
          mode: (mode & 4095) | (node.mode & ~4095),
          ctime: Date.now(),
          dontFollow
        });
      },
  chmod(path, mode, dontFollow) {
        var node;
        if (typeof path == 'string') {
          var lookup = FS.lookupPath(path, { follow: !dontFollow });
          node = lookup.node;
        } else {
          node = path;
        }
        FS.doChmod(null, node, mode, dontFollow);
      },
  lchmod(path, mode) {
        FS.chmod(path, mode, true);
      },
  fchmod(fd, mode) {
        var stream = FS.getStreamChecked(fd);
        FS.doChmod(stream, stream.node, mode, false);
      },
  doChown(stream, node, dontFollow) {
        FS.doSetAttr(stream, node, {
          timestamp: Date.now(),
          dontFollow
          // we ignore the uid / gid for now
        });
      },
  chown(path, uid, gid, dontFollow) {
        var node;
        if (typeof path == 'string') {
          var lookup = FS.lookupPath(path, { follow: !dontFollow });
          node = lookup.node;
        } else {
          node = path;
        }
        FS.doChown(null, node, dontFollow);
      },
  lchown(path, uid, gid) {
        FS.chown(path, uid, gid, true);
      },
  fchown(fd, uid, gid) {
        var stream = FS.getStreamChecked(fd);
        FS.doChown(stream, stream.node, false);
      },
  doTruncate(stream, node, len) {
        if (FS.isDir(node.mode)) {
          throw new FS.ErrnoError(31);
        }
        if (!FS.isFile(node.mode)) {
          throw new FS.ErrnoError(28);
        }
        var errCode = FS.nodePermissions(node, 'w');
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        FS.doSetAttr(stream, node, {
          size: len,
          timestamp: Date.now()
        });
      },
  truncate(path, len) {
        if (len < 0) {
          throw new FS.ErrnoError(28);
        }
        var node;
        if (typeof path == 'string') {
          var lookup = FS.lookupPath(path, { follow: true });
          node = lookup.node;
        } else {
          node = path;
        }
        FS.doTruncate(null, node, len);
      },
  ftruncate(fd, len) {
        var stream = FS.getStreamChecked(fd);
        if (len < 0 || (stream.flags & 2097155) === 0) {
          throw new FS.ErrnoError(28);
        }
        FS.doTruncate(stream, stream.node, len);
      },
  utime(path, atime, mtime) {
        var lookup = FS.lookupPath(path, { follow: true });
        var node = lookup.node;
        var setattr = FS.checkOpExists(node.node_ops.setattr, 63);
        setattr(node, {
          atime: atime,
          mtime: mtime
        });
      },
  open(path, flags, mode = 0o666) {
        if (path === "") {
          throw new FS.ErrnoError(44);
        }
        flags = typeof flags == 'string' ? FS_modeStringToFlags(flags) : flags;
        if ((flags & 64)) {
          mode = (mode & 4095) | 32768;
        } else {
          mode = 0;
        }
        var node;
        var isDirPath;
        if (typeof path == 'object') {
          node = path;
        } else {
          isDirPath = path.endsWith("/");
          // noent_okay makes it so that if the final component of the path
          // doesn't exist, lookupPath returns `node: undefined`. `path` will be
          // updated to point to the target of all symlinks.
          var lookup = FS.lookupPath(path, {
            follow: !(flags & 131072),
            noent_okay: true
          });
          node = lookup.node;
          path = lookup.path;
        }
        // perhaps we need to create the node
        var created = false;
        if ((flags & 64)) {
          if (node) {
            // if O_CREAT and O_EXCL are set, error out if the node already exists
            if ((flags & 128)) {
              throw new FS.ErrnoError(20);
            }
          } else if (isDirPath) {
            throw new FS.ErrnoError(31);
          } else {
            // node doesn't exist, try to create it
            // Ignore the permission bits here to ensure we can `open` this new
            // file below. We use chmod below the apply the permissions once the
            // file is open.
            node = FS.mknod(path, mode | 0o777, 0);
            created = true;
          }
        }
        if (!node) {
          throw new FS.ErrnoError(44);
        }
        // can't truncate a device
        if (FS.isChrdev(node.mode)) {
          flags &= ~512;
        }
        // if asked only for a directory, then this must be one
        if ((flags & 65536) && !FS.isDir(node.mode)) {
          throw new FS.ErrnoError(54);
        }
        // check permissions, if this is not a file we just created now (it is ok to
        // create and write to a file with read-only permissions; it is read-only
        // for later use)
        if (!created) {
          var errCode = FS.mayOpen(node, flags);
          if (errCode) {
            throw new FS.ErrnoError(errCode);
          }
        }
        // do truncation if necessary
        if ((flags & 512) && !created) {
          FS.truncate(node, 0);
        }
        // we've already handled these, don't pass down to the underlying vfs
        flags &= ~(128 | 512 | 131072);
  
        // register the stream with the filesystem
        var stream = FS.createStream({
          node,
          path: FS.getPath(node),  // we want the absolute path to the node
          flags,
          seekable: true,
          position: 0,
          stream_ops: node.stream_ops,
          // used by the file family libc calls (fopen, fwrite, ferror, etc.)
          ungotten: [],
          error: false
        });
        // call the new stream's open function
        if (stream.stream_ops.open) {
          stream.stream_ops.open(stream);
        }
        if (created) {
          FS.chmod(node, mode & 0o777);
        }
        if (Module['logReadFiles'] && !(flags & 1)) {
          if (!(path in FS.readFiles)) {
            FS.readFiles[path] = 1;
          }
        }
        return stream;
      },
  close(stream) {
        if (FS.isClosed(stream)) {
          throw new FS.ErrnoError(8);
        }
        if (stream.getdents) stream.getdents = null; // free readdir state
        try {
          if (stream.stream_ops.close) {
            stream.stream_ops.close(stream);
          }
        } catch (e) {
          throw e;
        } finally {
          FS.closeStream(stream.fd);
        }
        stream.fd = null;
      },
  isClosed(stream) {
        return stream.fd === null;
      },
  llseek(stream, offset, whence) {
        if (FS.isClosed(stream)) {
          throw new FS.ErrnoError(8);
        }
        if (!stream.seekable || !stream.stream_ops.llseek) {
          throw new FS.ErrnoError(70);
        }
        if (whence != 0 && whence != 1 && whence != 2) {
          throw new FS.ErrnoError(28);
        }
        stream.position = stream.stream_ops.llseek(stream, offset, whence);
        stream.ungotten = [];
        return stream.position;
      },
  read(stream, buffer, offset, length, position) {
        assert(offset >= 0);
        if (length < 0 || position < 0) {
          throw new FS.ErrnoError(28);
        }
        if (FS.isClosed(stream)) {
          throw new FS.ErrnoError(8);
        }
        if ((stream.flags & 2097155) === 1) {
          throw new FS.ErrnoError(8);
        }
        if (FS.isDir(stream.node.mode)) {
          throw new FS.ErrnoError(31);
        }
        if (!stream.stream_ops.read) {
          throw new FS.ErrnoError(28);
        }
        var seeking = typeof position != 'undefined';
        if (!seeking) {
          position = stream.position;
        } else if (!stream.seekable) {
          throw new FS.ErrnoError(70);
        }
        var bytesRead = stream.stream_ops.read(stream, buffer, offset, length, position);
        if (!seeking) stream.position += bytesRead;
        return bytesRead;
      },
  write(stream, buffer, offset, length, position, canOwn) {
        assert(offset >= 0);
        if (length < 0 || position < 0) {
          throw new FS.ErrnoError(28);
        }
        if (FS.isClosed(stream)) {
          throw new FS.ErrnoError(8);
        }
        if ((stream.flags & 2097155) === 0) {
          throw new FS.ErrnoError(8);
        }
        if (FS.isDir(stream.node.mode)) {
          throw new FS.ErrnoError(31);
        }
        if (!stream.stream_ops.write) {
          throw new FS.ErrnoError(28);
        }
        if (stream.seekable && stream.flags & 1024) {
          // seek to the end before writing in append mode
          FS.llseek(stream, 0, 2);
        }
        var seeking = typeof position != 'undefined';
        if (!seeking) {
          position = stream.position;
        } else if (!stream.seekable) {
          throw new FS.ErrnoError(70);
        }
        var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn);
        if (!seeking) stream.position += bytesWritten;
        return bytesWritten;
      },
  mmap(stream, length, position, prot, flags) {
        // User requests writing to file (prot & PROT_WRITE != 0).
        // Checking if we have permissions to write to the file unless
        // MAP_PRIVATE flag is set. According to POSIX spec it is possible
        // to write to file opened in read-only mode with MAP_PRIVATE flag,
        // as all modifications will be visible only in the memory of
        // the current process.
        if ((prot & 2) !== 0
            && (flags & 2) === 0
            && (stream.flags & 2097155) !== 2) {
          throw new FS.ErrnoError(2);
        }
        if ((stream.flags & 2097155) === 1) {
          throw new FS.ErrnoError(2);
        }
        if (!stream.stream_ops.mmap) {
          throw new FS.ErrnoError(43);
        }
        if (!length) {
          throw new FS.ErrnoError(28);
        }
        return stream.stream_ops.mmap(stream, length, position, prot, flags);
      },
  msync(stream, buffer, offset, length, mmapFlags) {
        assert(offset >= 0);
        if (!stream.stream_ops.msync) {
          return 0;
        }
        return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags);
      },
  ioctl(stream, cmd, arg) {
        if (!stream.stream_ops.ioctl) {
          throw new FS.ErrnoError(59);
        }
        return stream.stream_ops.ioctl(stream, cmd, arg);
      },
  readFile(path, opts = {}) {
        opts.flags = opts.flags || 0;
        opts.encoding = opts.encoding || 'binary';
        if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
          throw new Error(`Invalid encoding type "${opts.encoding}"`);
        }
        var ret;
        var stream = FS.open(path, opts.flags);
        var stat = FS.stat(path);
        var length = stat.size;
        var buf = new Uint8Array(length);
        FS.read(stream, buf, 0, length, 0);
        if (opts.encoding === 'utf8') {
          ret = UTF8ArrayToString(buf);
        } else if (opts.encoding === 'binary') {
          ret = buf;
        }
        FS.close(stream);
        return ret;
      },
  writeFile(path, data, opts = {}) {
        opts.flags = opts.flags || 577;
        var stream = FS.open(path, opts.flags, opts.mode);
        if (typeof data == 'string') {
          var buf = new Uint8Array(lengthBytesUTF8(data)+1);
          var actualNumBytes = stringToUTF8Array(data, buf, 0, buf.length);
          FS.write(stream, buf, 0, actualNumBytes, undefined, opts.canOwn);
        } else if (ArrayBuffer.isView(data)) {
          FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn);
        } else {
          throw new Error('Unsupported data type');
        }
        FS.close(stream);
      },
  cwd:() => FS.currentPath,
  chdir(path) {
        var lookup = FS.lookupPath(path, { follow: true });
        if (lookup.node === null) {
          throw new FS.ErrnoError(44);
        }
        if (!FS.isDir(lookup.node.mode)) {
          throw new FS.ErrnoError(54);
        }
        var errCode = FS.nodePermissions(lookup.node, 'x');
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        FS.currentPath = lookup.path;
      },
  createDefaultDirectories() {
        FS.mkdir('/tmp');
        FS.mkdir('/home');
        FS.mkdir('/home/web_user');
      },
  createDefaultDevices() {
        // create /dev
        FS.mkdir('/dev');
        // setup /dev/null
        FS.registerDevice(FS.makedev(1, 3), {
          read: () => 0,
          write: (stream, buffer, offset, length, pos) => length,
          llseek: () => 0,
        });
        FS.mkdev('/dev/null', FS.makedev(1, 3));
        // setup /dev/tty and /dev/tty1
        // stderr needs to print output using err() rather than out()
        // so we register a second tty just for it.
        TTY.register(FS.makedev(5, 0), TTY.default_tty_ops);
        TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops);
        FS.mkdev('/dev/tty', FS.makedev(5, 0));
        FS.mkdev('/dev/tty1', FS.makedev(6, 0));
        // setup /dev/[u]random
        // use a buffer to avoid overhead of individual crypto calls per byte
        var randomBuffer = new Uint8Array(1024), randomLeft = 0;
        var randomByte = () => {
          if (randomLeft === 0) {
            randomFill(randomBuffer);
            randomLeft = randomBuffer.byteLength;
          }
          return randomBuffer[--randomLeft];
        };
        FS.createDevice('/dev', 'random', randomByte);
        FS.createDevice('/dev', 'urandom', randomByte);
        // we're not going to emulate the actual shm device,
        // just create the tmp dirs that reside in it commonly
        FS.mkdir('/dev/shm');
        FS.mkdir('/dev/shm/tmp');
      },
  createSpecialDirectories() {
        // create /proc/self/fd which allows /proc/self/fd/6 => readlink gives the
        // name of the stream for fd 6 (see test_unistd_ttyname)
        FS.mkdir('/proc');
        var proc_self = FS.mkdir('/proc/self');
        FS.mkdir('/proc/self/fd');
        FS.mount({
          mount() {
            var node = FS.createNode(proc_self, 'fd', 16895, 73);
            node.stream_ops = {
              llseek: MEMFS.stream_ops.llseek,
            };
            node.node_ops = {
              lookup(parent, name) {
                var fd = +name;
                var stream = FS.getStreamChecked(fd);
                var ret = {
                  parent: null,
                  mount: { mountpoint: 'fake' },
                  node_ops: { readlink: () => stream.path },
                  id: fd + 1,
                };
                ret.parent = ret; // make it look like a simple root node
                return ret;
              },
              readdir() {
                return Array.from(FS.streams.entries())
                  .filter(([k, v]) => v)
                  .map(([k, v]) => k.toString());
              }
            };
            return node;
          }
        }, {}, '/proc/self/fd');
      },
  createStandardStreams(input, output, error) {
        // TODO deprecate the old functionality of a single
        // input / output callback and that utilizes FS.createDevice
        // and instead require a unique set of stream ops
  
        // by default, we symlink the standard streams to the
        // default tty devices. however, if the standard streams
        // have been overwritten we create a unique device for
        // them instead.
        if (input) {
          FS.createDevice('/dev', 'stdin', input);
        } else {
          FS.symlink('/dev/tty', '/dev/stdin');
        }
        if (output) {
          FS.createDevice('/dev', 'stdout', null, output);
        } else {
          FS.symlink('/dev/tty', '/dev/stdout');
        }
        if (error) {
          FS.createDevice('/dev', 'stderr', null, error);
        } else {
          FS.symlink('/dev/tty1', '/dev/stderr');
        }
  
        // open default streams for the stdin, stdout and stderr devices
        var stdin = FS.open('/dev/stdin', 0);
        var stdout = FS.open('/dev/stdout', 1);
        var stderr = FS.open('/dev/stderr', 1);
        assert(stdin.fd === 0, `invalid handle for stdin (${stdin.fd})`);
        assert(stdout.fd === 1, `invalid handle for stdout (${stdout.fd})`);
        assert(stderr.fd === 2, `invalid handle for stderr (${stderr.fd})`);
      },
  staticInit() {
        FS.nameTable = new Array(4096);
  
        FS.mount(MEMFS, {}, '/');
  
        FS.createDefaultDirectories();
        FS.createDefaultDevices();
        FS.createSpecialDirectories();
  
        FS.filesystems = {
          'MEMFS': MEMFS,
        };
      },
  init(input, output, error) {
        assert(!FS.initialized, 'FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)');
        FS.initialized = true;
  
        // Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here
        input ??= Module['stdin'];
        output ??= Module['stdout'];
        error ??= Module['stderr'];
  
        FS.createStandardStreams(input, output, error);
      },
  quit() {
        FS.initialized = false;
        // force-flush all streams, so we get musl std streams printed out
        _fflush(0);
        // close all of our streams
        for (var stream of FS.streams) {
          if (stream) {
            FS.close(stream);
          }
        }
      },
  findObject(path, dontResolveLastLink) {
        var ret = FS.analyzePath(path, dontResolveLastLink);
        if (!ret.exists) {
          return null;
        }
        return ret.object;
      },
  analyzePath(path, dontResolveLastLink) {
        // operate from within the context of the symlink's target
        try {
          var lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
          path = lookup.path;
        } catch (e) {
        }
        var ret = {
          isRoot: false, exists: false, error: 0, name: null, path: null, object: null,
          parentExists: false, parentPath: null, parentObject: null
        };
        try {
          var lookup = FS.lookupPath(path, { parent: true });
          ret.parentExists = true;
          ret.parentPath = lookup.path;
          ret.parentObject = lookup.node;
          ret.name = PATH.basename(path);
          lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
          ret.exists = true;
          ret.path = lookup.path;
          ret.object = lookup.node;
          ret.name = lookup.node.name;
          ret.isRoot = lookup.path === '/';
        } catch (e) {
          ret.error = e.errno;
        };
        return ret;
      },
  createPath(parent, path, canRead, canWrite) {
        parent = typeof parent == 'string' ? parent : FS.getPath(parent);
        var parts = path.split('/').reverse();
        while (parts.length) {
          var part = parts.pop();
          if (!part) continue;
          var current = PATH.join2(parent, part);
          try {
            FS.mkdir(current);
          } catch (e) {
            if (e.errno != 20) throw e;
          }
          parent = current;
        }
        return current;
      },
  createFile(parent, name, properties, canRead, canWrite) {
        var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name);
        var mode = FS_getMode(canRead, canWrite);
        return FS.create(path, mode);
      },
  createDataFile(parent, name, data, canRead, canWrite, canOwn) {
        var path = name;
        if (parent) {
          parent = typeof parent == 'string' ? parent : FS.getPath(parent);
          path = name ? PATH.join2(parent, name) : parent;
        }
        var mode = FS_getMode(canRead, canWrite);
        var node = FS.create(path, mode);
        if (data) {
          if (typeof data == 'string') {
            var arr = new Array(data.length);
            for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i);
            data = arr;
          }
          // make sure we can write to the file
          FS.chmod(node, mode | 146);
          var stream = FS.open(node, 577);
          FS.write(stream, data, 0, data.length, 0, canOwn);
          FS.close(stream);
          FS.chmod(node, mode);
        }
      },
  createDevice(parent, name, input, output) {
        var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name);
        var mode = FS_getMode(!!input, !!output);
        FS.createDevice.major ??= 64;
        var dev = FS.makedev(FS.createDevice.major++, 0);
        // Create a fake device that a set of stream ops to emulate
        // the old behavior.
        FS.registerDevice(dev, {
          open(stream) {
            stream.seekable = false;
          },
          close(stream) {
            // flush any pending line data
            if (output?.buffer?.length) {
              output(10);
            }
          },
          read(stream, buffer, offset, length, pos /* ignored */) {
            var bytesRead = 0;
            for (var i = 0; i < length; i++) {
              var result;
              try {
                result = input();
              } catch (e) {
                throw new FS.ErrnoError(29);
              }
              if (result === undefined && bytesRead === 0) {
                throw new FS.ErrnoError(6);
              }
              if (result === null || result === undefined) break;
              bytesRead++;
              buffer[offset+i] = result;
            }
            if (bytesRead) {
              stream.node.atime = Date.now();
            }
            return bytesRead;
          },
          write(stream, buffer, offset, length, pos) {
            for (var i = 0; i < length; i++) {
              try {
                output(buffer[offset+i]);
              } catch (e) {
                throw new FS.ErrnoError(29);
              }
            }
            if (length) {
              stream.node.mtime = stream.node.ctime = Date.now();
            }
            return i;
          }
        });
        return FS.mkdev(path, mode, dev);
      },
  forceLoadFile(obj) {
        if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true;
        if (typeof XMLHttpRequest != 'undefined') {
          throw new Error("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.");
        } else { // Command-line.
          try {
            obj.contents = readBinary(obj.url);
            obj.usedBytes = obj.contents.length;
          } catch (e) {
            throw new FS.ErrnoError(29);
          }
        }
      },
  createLazyFile(parent, name, url, canRead, canWrite) {
        // Lazy chunked Uint8Array (implements get and length from Uint8Array).
        // Actual getting is abstracted away for eventual reuse.
        class LazyUint8Array {
          lengthKnown = false;
          chunks = []; // Loaded chunks. Index is the chunk number
          get(idx) {
            if (idx > this.length-1 || idx < 0) {
              return undefined;
            }
            var chunkOffset = idx % this.chunkSize;
            var chunkNum = (idx / this.chunkSize)|0;
            return this.getter(chunkNum)[chunkOffset];
          }
          setDataGetter(getter) {
            this.getter = getter;
          }
          cacheLength() {
            // Find length
            var xhr = new XMLHttpRequest();
            xhr.open('HEAD', url, false);
            xhr.send(null);
            if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
            var datalength = Number(xhr.getResponseHeader("Content-length"));
            var header;
            var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges")) && header === "bytes";
            var usesGzip = (header = xhr.getResponseHeader("Content-Encoding")) && header === "gzip";
  
            var chunkSize = 1024*1024; // Chunk size in bytes
  
            if (!hasByteServing) chunkSize = datalength;
  
            // Function to get a range from the remote URL.
            var doXHR = (from, to) => {
              if (from > to) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!");
              if (to > datalength-1) throw new Error("only " + datalength + " bytes available! programmer error!");
  
              // TODO: Use mozResponseArrayBuffer, responseStream, etc. if available.
              var xhr = new XMLHttpRequest();
              xhr.open('GET', url, false);
              if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to);
  
              // Some hints to the browser that we want binary data.
              xhr.responseType = 'arraybuffer';
              if (xhr.overrideMimeType) {
                xhr.overrideMimeType('text/plain; charset=x-user-defined');
              }
  
              xhr.send(null);
              if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
              if (xhr.response !== undefined) {
                return new Uint8Array(/** @type{Array<number>} */(xhr.response || []));
              }
              return intArrayFromString(xhr.responseText || '', true);
            };
            var lazyArray = this;
            lazyArray.setDataGetter((chunkNum) => {
              var start = chunkNum * chunkSize;
              var end = (chunkNum+1) * chunkSize - 1; // including this byte
              end = Math.min(end, datalength-1); // if datalength-1 is selected, this is the last block
              if (typeof lazyArray.chunks[chunkNum] == 'undefined') {
                lazyArray.chunks[chunkNum] = doXHR(start, end);
              }
              if (typeof lazyArray.chunks[chunkNum] == 'undefined') throw new Error('doXHR failed!');
              return lazyArray.chunks[chunkNum];
            });
  
            if (usesGzip || !datalength) {
              // if the server uses gzip or doesn't supply the length, we have to download the whole file to get the (uncompressed) length
              chunkSize = datalength = 1; // this will force getter(0)/doXHR do download the whole file
              datalength = this.getter(0).length;
              chunkSize = datalength;
              out("LazyFiles on gzip forces download of the whole file when length is accessed");
            }
  
            this._length = datalength;
            this._chunkSize = chunkSize;
            this.lengthKnown = true;
          }
          get length() {
            if (!this.lengthKnown) {
              this.cacheLength();
            }
            return this._length;
          }
          get chunkSize() {
            if (!this.lengthKnown) {
              this.cacheLength();
            }
            return this._chunkSize;
          }
        }
  
        if (typeof XMLHttpRequest != 'undefined') {
          if (!ENVIRONMENT_IS_WORKER) throw 'Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc';
          var lazyArray = new LazyUint8Array();
          var properties = { isDevice: false, contents: lazyArray };
        } else {
          var properties = { isDevice: false, url: url };
        }
  
        var node = FS.createFile(parent, name, properties, canRead, canWrite);
        // This is a total hack, but I want to get this lazy file code out of the
        // core of MEMFS. If we want to keep this lazy file concept I feel it should
        // be its own thin LAZYFS proxying calls to MEMFS.
        if (properties.contents) {
          node.contents = properties.contents;
        } else if (properties.url) {
          node.contents = null;
          node.url = properties.url;
        }
        // Add a function that defers querying the file size until it is asked the first time.
        Object.defineProperties(node, {
          usedBytes: {
            get: function() { return this.contents.length; }
          }
        });
        // override each stream op with one that tries to force load the lazy file first
        var stream_ops = {};
        var keys = Object.keys(node.stream_ops);
        keys.forEach((key) => {
          var fn = node.stream_ops[key];
          stream_ops[key] = (...args) => {
            FS.forceLoadFile(node);
            return fn(...args);
          };
        });
        function writeChunks(stream, buffer, offset, length, position) {
          var contents = stream.node.contents;
          if (position >= contents.length)
            return 0;
          var size = Math.min(contents.length - position, length);
          assert(size >= 0);
          if (contents.slice) { // normal array
            for (var i = 0; i < size; i++) {
              buffer[offset + i] = contents[position + i];
            }
          } else {
            for (var i = 0; i < size; i++) { // LazyUint8Array from sync binary XHR
              buffer[offset + i] = contents.get(position + i);
            }
          }
          return size;
        }
        // use a custom read function
        stream_ops.read = (stream, buffer, offset, length, position) => {
          FS.forceLoadFile(node);
          return writeChunks(stream, buffer, offset, length, position)
        };
        // use a custom mmap function
        stream_ops.mmap = (stream, length, position, prot, flags) => {
          FS.forceLoadFile(node);
          var ptr = mmapAlloc(length);
          if (!ptr) {
            throw new FS.ErrnoError(48);
          }
          writeChunks(stream, HEAP8, ptr, length, position);
          return { ptr, allocated: true };
        };
        node.stream_ops = stream_ops;
        return node;
      },
  absolutePath() {
        abort('FS.absolutePath has been removed; use PATH_FS.resolve instead');
      },
  createFolder() {
        abort('FS.createFolder has been removed; use FS.mkdir instead');
      },
  createLink() {
        abort('FS.createLink has been removed; use FS.symlink instead');
      },
  joinPath() {
        abort('FS.joinPath has been removed; use PATH.join instead');
      },
  mmapAlloc() {
        abort('FS.mmapAlloc has been replaced by the top level function mmapAlloc');
      },
  standardizePath() {
        abort('FS.standardizePath has been removed; use PATH.normalize instead');
      },
  };
  
  var SYSCALLS = {
  DEFAULT_POLLMASK:5,
  calculateAt(dirfd, path, allowEmpty) {
        if (PATH.isAbs(path)) {
          return path;
        }
        // relative path
        var dir;
        if (dirfd === -100) {
          dir = FS.cwd();
        } else {
          var dirstream = SYSCALLS.getStreamFromFD(dirfd);
          dir = dirstream.path;
        }
        if (path.length == 0) {
          if (!allowEmpty) {
            throw new FS.ErrnoError(44);;
          }
          return dir;
        }
        return dir + '/' + path;
      },
  writeStat(buf, stat) {
        HEAP32[((buf)>>2)] = stat.dev;checkInt32(stat.dev);
        HEAP32[(((buf)+(4))>>2)] = stat.mode;checkInt32(stat.mode);
        HEAPU32[(((buf)+(8))>>2)] = stat.nlink;checkInt32(stat.nlink);
        HEAP32[(((buf)+(12))>>2)] = stat.uid;checkInt32(stat.uid);
        HEAP32[(((buf)+(16))>>2)] = stat.gid;checkInt32(stat.gid);
        HEAP32[(((buf)+(20))>>2)] = stat.rdev;checkInt32(stat.rdev);
        HEAP64[(((buf)+(24))>>3)] = BigInt(stat.size);checkInt64(stat.size);
        HEAP32[(((buf)+(32))>>2)] = 4096;checkInt32(4096);
        HEAP32[(((buf)+(36))>>2)] = stat.blocks;checkInt32(stat.blocks);
        var atime = stat.atime.getTime();
        var mtime = stat.mtime.getTime();
        var ctime = stat.ctime.getTime();
        HEAP64[(((buf)+(40))>>3)] = BigInt(Math.floor(atime / 1000));checkInt64(Math.floor(atime / 1000));
        HEAPU32[(((buf)+(48))>>2)] = (atime % 1000) * 1000 * 1000;checkInt32((atime % 1000) * 1000 * 1000);
        HEAP64[(((buf)+(56))>>3)] = BigInt(Math.floor(mtime / 1000));checkInt64(Math.floor(mtime / 1000));
        HEAPU32[(((buf)+(64))>>2)] = (mtime % 1000) * 1000 * 1000;checkInt32((mtime % 1000) * 1000 * 1000);
        HEAP64[(((buf)+(72))>>3)] = BigInt(Math.floor(ctime / 1000));checkInt64(Math.floor(ctime / 1000));
        HEAPU32[(((buf)+(80))>>2)] = (ctime % 1000) * 1000 * 1000;checkInt32((ctime % 1000) * 1000 * 1000);
        HEAP64[(((buf)+(88))>>3)] = BigInt(stat.ino);checkInt64(stat.ino);
        return 0;
      },
  writeStatFs(buf, stats) {
        HEAP32[(((buf)+(4))>>2)] = stats.bsize;checkInt32(stats.bsize);
        HEAP32[(((buf)+(40))>>2)] = stats.bsize;checkInt32(stats.bsize);
        HEAP32[(((buf)+(8))>>2)] = stats.blocks;checkInt32(stats.blocks);
        HEAP32[(((buf)+(12))>>2)] = stats.bfree;checkInt32(stats.bfree);
        HEAP32[(((buf)+(16))>>2)] = stats.bavail;checkInt32(stats.bavail);
        HEAP32[(((buf)+(20))>>2)] = stats.files;checkInt32(stats.files);
        HEAP32[(((buf)+(24))>>2)] = stats.ffree;checkInt32(stats.ffree);
        HEAP32[(((buf)+(28))>>2)] = stats.fsid;checkInt32(stats.fsid);
        HEAP32[(((buf)+(44))>>2)] = stats.flags;checkInt32(stats.flags);  // ST_NOSUID
        HEAP32[(((buf)+(36))>>2)] = stats.namelen;checkInt32(stats.namelen);
      },
  doMsync(addr, stream, len, flags, offset) {
        if (!FS.isFile(stream.node.mode)) {
          throw new FS.ErrnoError(43);
        }
        if (flags & 2) {
          // MAP_PRIVATE calls need not to be synced back to underlying fs
          return 0;
        }
        var buffer = HEAPU8.slice(addr, addr + len);
        FS.msync(stream, buffer, offset, len, flags);
      },
  getStreamFromFD(fd) {
        var stream = FS.getStreamChecked(fd);
        return stream;
      },
  varargs:undefined,
  getStr(ptr) {
        var ret = UTF8ToString(ptr);
        return ret;
      },
  };
  function ___syscall_chmod(path, mode) {
  try {
  
      path = SYSCALLS.getStr(path);
      FS.chmod(path, mode);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  function ___syscall_faccessat(dirfd, path, amode, flags) {
  try {
  
      path = SYSCALLS.getStr(path);
      assert(flags === 0 || flags == 512);
      path = SYSCALLS.calculateAt(dirfd, path);
      if (amode & ~7) {
        // need a valid mode
        return -28;
      }
      var lookup = FS.lookupPath(path, { follow: true });
      var node = lookup.node;
      if (!node) {
        return -44;
      }
      var perms = '';
      if (amode & 4) perms += 'r';
      if (amode & 2) perms += 'w';
      if (amode & 1) perms += 'x';
      if (perms /* otherwise, they've just passed F_OK */ && FS.nodePermissions(node, perms)) {
        return -2;
      }
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  function ___syscall_fchmod(fd, mode) {
  try {
  
      FS.fchmod(fd, mode);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  function ___syscall_fchown32(fd, owner, group) {
  try {
  
      FS.fchown(fd, owner, group);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  /** @suppress {duplicate } */
  var syscallGetVarargI = () => {
      assert(SYSCALLS.varargs != undefined);
      // the `+` prepended here is necessary to convince the JSCompiler that varargs is indeed a number.
      var ret = HEAP32[((+SYSCALLS.varargs)>>2)];
      SYSCALLS.varargs += 4;
      return ret;
    };
  var syscallGetVarargP = syscallGetVarargI;
  
  
  function ___syscall_fcntl64(fd, cmd, varargs) {
  SYSCALLS.varargs = varargs;
  try {
  
      var stream = SYSCALLS.getStreamFromFD(fd);
      switch (cmd) {
        case 0: {
          var arg = syscallGetVarargI();
          if (arg < 0) {
            return -28;
          }
          while (FS.streams[arg]) {
            arg++;
          }
          var newStream;
          newStream = FS.dupStream(stream, arg);
          return newStream.fd;
        }
        case 1:
        case 2:
          return 0;  // FD_CLOEXEC makes no sense for a single process.
        case 3:
          return stream.flags;
        case 4: {
          var arg = syscallGetVarargI();
          stream.flags |= arg;
          return 0;
        }
        case 12: {
          var arg = syscallGetVarargP();
          var offset = 0;
          // We're always unlocked.
          HEAP16[(((arg)+(offset))>>1)] = 2;checkInt16(2);
          return 0;
        }
        case 13:
        case 14:
          // Pretend that the locking is successful. These are process-level locks,
          // and Emscripten programs are a single process. If we supported linking a
          // filesystem between programs, we'd need to do more here.
          // See https://github.com/emscripten-core/emscripten/issues/23697
          return 0;
      }
      return -28;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  function ___syscall_fstat64(fd, buf) {
  try {
  
      return SYSCALLS.writeStat(buf, FS.fstat(fd));
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  var INT53_MAX = 9007199254740992;
  
  var INT53_MIN = -9007199254740992;
  var bigintToI53Checked = (num) => (num < INT53_MIN || num > INT53_MAX) ? NaN : Number(num);
  function ___syscall_ftruncate64(fd, length) {
    length = bigintToI53Checked(length);
  
  
  try {
  
      if (isNaN(length)) return 61;
      FS.ftruncate(fd, length);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  ;
  }

  
  var stringToUTF8 = (str, outPtr, maxBytesToWrite) => {
      assert(typeof maxBytesToWrite == 'number', 'stringToUTF8(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
      return stringToUTF8Array(str, HEAPU8, outPtr, maxBytesToWrite);
    };
  function ___syscall_getcwd(buf, size) {
  try {
  
      if (size === 0) return -28;
      var cwd = FS.cwd();
      var cwdLengthInBytes = lengthBytesUTF8(cwd) + 1;
      if (size < cwdLengthInBytes) return -68;
      stringToUTF8(cwd, buf, size);
      return cwdLengthInBytes;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  function ___syscall_lstat64(path, buf) {
  try {
  
      path = SYSCALLS.getStr(path);
      return SYSCALLS.writeStat(buf, FS.lstat(path));
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  function ___syscall_mkdirat(dirfd, path, mode) {
  try {
  
      path = SYSCALLS.getStr(path);
      path = SYSCALLS.calculateAt(dirfd, path);
      FS.mkdir(path, mode, 0);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  function ___syscall_newfstatat(dirfd, path, buf, flags) {
  try {
  
      path = SYSCALLS.getStr(path);
      var nofollow = flags & 256;
      var allowEmpty = flags & 4096;
      flags = flags & (~6400);
      assert(!flags, `unknown flags in __syscall_newfstatat: ${flags}`);
      path = SYSCALLS.calculateAt(dirfd, path, allowEmpty);
      return SYSCALLS.writeStat(buf, nofollow ? FS.lstat(path) : FS.stat(path));
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  
  function ___syscall_openat(dirfd, path, flags, varargs) {
  SYSCALLS.varargs = varargs;
  try {
  
      path = SYSCALLS.getStr(path);
      path = SYSCALLS.calculateAt(dirfd, path);
      var mode = varargs ? syscallGetVarargI() : 0;
      return FS.open(path, flags, mode).fd;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  
  
  function ___syscall_readlinkat(dirfd, path, buf, bufsize) {
  try {
  
      path = SYSCALLS.getStr(path);
      path = SYSCALLS.calculateAt(dirfd, path);
      if (bufsize <= 0) return -28;
      var ret = FS.readlink(path);
  
      var len = Math.min(bufsize, lengthBytesUTF8(ret));
      var endChar = HEAP8[buf+len];
      stringToUTF8(ret, buf, bufsize+1);
      // readlink is one of the rare functions that write out a C string, but does never append a null to the output buffer(!)
      // stringToUTF8() always appends a null byte, so restore the character under the null byte after the write.
      HEAP8[buf+len] = endChar;
      return len;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  function ___syscall_rmdir(path) {
  try {
  
      path = SYSCALLS.getStr(path);
      FS.rmdir(path);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  function ___syscall_stat64(path, buf) {
  try {
  
      path = SYSCALLS.getStr(path);
      return SYSCALLS.writeStat(buf, FS.stat(path));
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  function ___syscall_unlinkat(dirfd, path, flags) {
  try {
  
      path = SYSCALLS.getStr(path);
      path = SYSCALLS.calculateAt(dirfd, path);
      if (flags === 0) {
        FS.unlink(path);
      } else if (flags === 512) {
        FS.rmdir(path);
      } else {
        abort('Invalid flags passed to unlinkat');
      }
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  var readI53FromI64 = (ptr) => {
      return HEAPU32[((ptr)>>2)] + HEAP32[(((ptr)+(4))>>2)] * 4294967296;
    };
  
  function ___syscall_utimensat(dirfd, path, times, flags) {
  try {
  
      path = SYSCALLS.getStr(path);
      assert(flags === 0);
      path = SYSCALLS.calculateAt(dirfd, path, true);
      var now = Date.now(), atime, mtime;
      if (!times) {
        atime = now;
        mtime = now;
      } else {
        var seconds = readI53FromI64(times);
        var nanoseconds = HEAP32[(((times)+(8))>>2)];
        if (nanoseconds == 1073741823) {
          atime = now;
        } else if (nanoseconds == 1073741822) {
          atime = null;
        } else {
          atime = (seconds*1000) + (nanoseconds/(1000*1000));
        }
        times += 16;
        seconds = readI53FromI64(times);
        nanoseconds = HEAP32[(((times)+(8))>>2)];
        if (nanoseconds == 1073741823) {
          mtime = now;
        } else if (nanoseconds == 1073741822) {
          mtime = null;
        } else {
          mtime = (seconds*1000) + (nanoseconds/(1000*1000));
        }
      }
      // null here means UTIME_OMIT was passed. If both were set to UTIME_OMIT then
      // we can skip the call completely.
      if ((mtime ?? atime) !== null) {
        FS.utime(path, atime, mtime);
      }
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  }

  var __abort_js = () =>
      abort('native code called abort()');

  var isLeapYear = (year) => year%4 === 0 && (year%100 !== 0 || year%400 === 0);
  
  var MONTH_DAYS_LEAP_CUMULATIVE = [0,31,60,91,121,152,182,213,244,274,305,335];
  
  var MONTH_DAYS_REGULAR_CUMULATIVE = [0,31,59,90,120,151,181,212,243,273,304,334];
  var ydayFromDate = (date) => {
      var leap = isLeapYear(date.getFullYear());
      var monthDaysCumulative = (leap ? MONTH_DAYS_LEAP_CUMULATIVE : MONTH_DAYS_REGULAR_CUMULATIVE);
      var yday = monthDaysCumulative[date.getMonth()] + date.getDate() - 1; // -1 since it's days since Jan 1
  
      return yday;
    };
  
  function __localtime_js(time, tmPtr) {
    time = bigintToI53Checked(time);
  
  
      var date = new Date(time*1000);
      HEAP32[((tmPtr)>>2)] = date.getSeconds();checkInt32(date.getSeconds());
      HEAP32[(((tmPtr)+(4))>>2)] = date.getMinutes();checkInt32(date.getMinutes());
      HEAP32[(((tmPtr)+(8))>>2)] = date.getHours();checkInt32(date.getHours());
      HEAP32[(((tmPtr)+(12))>>2)] = date.getDate();checkInt32(date.getDate());
      HEAP32[(((tmPtr)+(16))>>2)] = date.getMonth();checkInt32(date.getMonth());
      HEAP32[(((tmPtr)+(20))>>2)] = date.getFullYear()-1900;checkInt32(date.getFullYear()-1900);
      HEAP32[(((tmPtr)+(24))>>2)] = date.getDay();checkInt32(date.getDay());
  
      var yday = ydayFromDate(date)|0;
      HEAP32[(((tmPtr)+(28))>>2)] = yday;checkInt32(yday);
      HEAP32[(((tmPtr)+(36))>>2)] = -(date.getTimezoneOffset() * 60);checkInt32(-(date.getTimezoneOffset() * 60));
  
      // Attention: DST is in December in South, and some regions don't have DST at all.
      var start = new Date(date.getFullYear(), 0, 1);
      var summerOffset = new Date(date.getFullYear(), 6, 1).getTimezoneOffset();
      var winterOffset = start.getTimezoneOffset();
      var dst = (summerOffset != winterOffset && date.getTimezoneOffset() == Math.min(winterOffset, summerOffset))|0;
      HEAP32[(((tmPtr)+(32))>>2)] = dst;checkInt32(dst);
    ;
  }

  
  
  
  
  
  function __mmap_js(len, prot, flags, fd, offset, allocated, addr) {
    offset = bigintToI53Checked(offset);
  
  
  try {
  
      if (isNaN(offset)) return 61;
      var stream = SYSCALLS.getStreamFromFD(fd);
      var res = FS.mmap(stream, len, offset, prot, flags);
      var ptr = res.ptr;
      HEAP32[((allocated)>>2)] = res.allocated;checkInt32(res.allocated);
      HEAPU32[((addr)>>2)] = ptr;
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  ;
  }

  
  function __munmap_js(addr, len, prot, flags, fd, offset) {
    offset = bigintToI53Checked(offset);
  
  
  try {
  
      var stream = SYSCALLS.getStreamFromFD(fd);
      if (prot & 2) {
        SYSCALLS.doMsync(addr, stream, len, flags, offset);
      }
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
  ;
  }

  
  var __tzset_js = (timezone, daylight, std_name, dst_name) => {
      // TODO: Use (malleable) environment variables instead of system settings.
      var currentYear = new Date().getFullYear();
      var winter = new Date(currentYear, 0, 1);
      var summer = new Date(currentYear, 6, 1);
      var winterOffset = winter.getTimezoneOffset();
      var summerOffset = summer.getTimezoneOffset();
  
      // Local standard timezone offset. Local standard time is not adjusted for
      // daylight savings.  This code uses the fact that getTimezoneOffset returns
      // a greater value during Standard Time versus Daylight Saving Time (DST).
      // Thus it determines the expected output during Standard Time, and it
      // compares whether the output of the given date the same (Standard) or less
      // (DST).
      var stdTimezoneOffset = Math.max(winterOffset, summerOffset);
  
      // timezone is specified as seconds west of UTC ("The external variable
      // `timezone` shall be set to the difference, in seconds, between
      // Coordinated Universal Time (UTC) and local standard time."), the same
      // as returned by stdTimezoneOffset.
      // See http://pubs.opengroup.org/onlinepubs/009695399/functions/tzset.html
      HEAPU32[((timezone)>>2)] = stdTimezoneOffset * 60;checkInt32(stdTimezoneOffset * 60);
  
      HEAP32[((daylight)>>2)] = Number(winterOffset != summerOffset);checkInt32(Number(winterOffset != summerOffset));
  
      var extractZone = (timezoneOffset) => {
        // Why inverse sign?
        // Read here https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset
        var sign = timezoneOffset >= 0 ? "-" : "+";
  
        var absOffset = Math.abs(timezoneOffset)
        var hours = String(Math.floor(absOffset / 60)).padStart(2, "0");
        var minutes = String(absOffset % 60).padStart(2, "0");
  
        return `UTC${sign}${hours}${minutes}`;
      }
  
      var winterName = extractZone(winterOffset);
      var summerName = extractZone(summerOffset);
      assert(winterName);
      assert(summerName);
      assert(lengthBytesUTF8(winterName) <= 16, `timezone name truncated to fit in TZNAME_MAX (${winterName})`);
      assert(lengthBytesUTF8(summerName) <= 16, `timezone name truncated to fit in TZNAME_MAX (${summerName})`);
      if (summerOffset < winterOffset) {
        // Northern hemisphere
        stringToUTF8(winterName, std_name, 17);
        stringToUTF8(summerName, dst_name, 17);
      } else {
        stringToUTF8(winterName, dst_name, 17);
        stringToUTF8(summerName, std_name, 17);
      }
    };

  var _emscripten_get_now = () => performance.now();
  
  var _emscripten_date_now = () => Date.now();
  
  var nowIsMonotonic = 1;
  
  var checkWasiClock = (clock_id) => clock_id >= 0 && clock_id <= 3;
  
  function _clock_time_get(clk_id, ignored_precision, ptime) {
    ignored_precision = bigintToI53Checked(ignored_precision);
  
  
      if (!checkWasiClock(clk_id)) {
        return 28;
      }
      var now;
      // all wasi clocks but realtime are monotonic
      if (clk_id === 0) {
        now = _emscripten_date_now();
      } else if (nowIsMonotonic) {
        now = _emscripten_get_now();
      } else {
        return 52;
      }
      // "now" is in ms, and wasi times are in ns.
      var nsec = Math.round(now * 1000 * 1000);
      HEAP64[((ptime)>>3)] = BigInt(nsec);checkInt64(nsec);
      return 0;
    ;
  }


  var getHeapMax = () =>
      // Stay one Wasm page short of 4GB: while e.g. Chrome is able to allocate
      // full 4GB Wasm memories, the size will wrap back to 0 bytes in Wasm side
      // for any code that deals with heap sizes, which would require special
      // casing all heap size related code to treat 0 specially.
      2147483648;
  var _emscripten_get_heap_max = () => getHeapMax();


  
  
  
  var growMemory = (size) => {
      var b = wasmMemory.buffer;
      var pages = ((size - b.byteLength + 65535) / 65536) | 0;
      try {
        // round size grow request up to wasm page size (fixed 64KB per spec)
        wasmMemory.grow(pages); // .grow() takes a delta compared to the previous size
        updateMemoryViews();
        return 1 /*success*/;
      } catch(e) {
        err(`growMemory: Attempted to grow heap from ${b.byteLength} bytes to ${size} bytes, but got error: ${e}`);
      }
      // implicit 0 return to save code size (caller will cast "undefined" into 0
      // anyhow)
    };
  var _emscripten_resize_heap = (requestedSize) => {
      var oldSize = HEAPU8.length;
      // With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned.
      requestedSize >>>= 0;
      // With multithreaded builds, races can happen (another thread might increase the size
      // in between), so return a failure, and let the caller retry.
      assert(requestedSize > oldSize);
  
      // Memory resize rules:
      // 1.  Always increase heap size to at least the requested size, rounded up
      //     to next page multiple.
      // 2a. If MEMORY_GROWTH_LINEAR_STEP == -1, excessively resize the heap
      //     geometrically: increase the heap size according to
      //     MEMORY_GROWTH_GEOMETRIC_STEP factor (default +20%), At most
      //     overreserve by MEMORY_GROWTH_GEOMETRIC_CAP bytes (default 96MB).
      // 2b. If MEMORY_GROWTH_LINEAR_STEP != -1, excessively resize the heap
      //     linearly: increase the heap size by at least
      //     MEMORY_GROWTH_LINEAR_STEP bytes.
      // 3.  Max size for the heap is capped at 2048MB-WASM_PAGE_SIZE, or by
      //     MAXIMUM_MEMORY, or by ASAN limit, depending on which is smallest
      // 4.  If we were unable to allocate as much memory, it may be due to
      //     over-eager decision to excessively reserve due to (3) above.
      //     Hence if an allocation fails, cut down on the amount of excess
      //     growth, in an attempt to succeed to perform a smaller allocation.
  
      // A limit is set for how much we can grow. We should not exceed that
      // (the wasm binary specifies it, so if we tried, we'd fail anyhow).
      var maxHeapSize = getHeapMax();
      if (requestedSize > maxHeapSize) {
        err(`Cannot enlarge memory, requested ${requestedSize} bytes, but the limit is ${maxHeapSize} bytes!`);
        return false;
      }
  
      // Loop through potential heap size increases. If we attempt a too eager
      // reservation that fails, cut down on the attempted size and reserve a
      // smaller bump instead. (max 3 times, chosen somewhat arbitrarily)
      for (var cutDown = 1; cutDown <= 4; cutDown *= 2) {
        var overGrownHeapSize = oldSize * (1 + 0.2 / cutDown); // ensure geometric growth
        // but limit overreserving (default to capping at +96MB overgrowth at most)
        overGrownHeapSize = Math.min(overGrownHeapSize, requestedSize + 100663296 );
  
        var newSize = Math.min(maxHeapSize, alignMemory(Math.max(requestedSize, overGrownHeapSize), 65536));
  
        var t0 = _emscripten_get_now();
        var replacement = growMemory(newSize);
        var t1 = _emscripten_get_now();
        dbg(`Heap resize call from ${oldSize} to ${newSize} took ${(t1 - t0)} msecs. Success: ${!!replacement}`);
        if (replacement) {
  
          return true;
        }
      }
      err(`Failed to grow the heap from ${oldSize} bytes to ${newSize} bytes, not enough memory!`);
      return false;
    };

  var ENV = {
  };
  
  var getExecutableName = () => thisProgram || './this.program';
  var getEnvStrings = () => {
      if (!getEnvStrings.strings) {
        // Default values.
        // Browser language detection #8751
        var lang = ((typeof navigator == 'object' && navigator.languages && navigator.languages[0]) || 'C').replace('-', '_') + '.UTF-8';
        var env = {
          'USER': 'web_user',
          'LOGNAME': 'web_user',
          'PATH': '/',
          'PWD': '/',
          'HOME': '/home/web_user',
          'LANG': lang,
          '_': getExecutableName()
        };
        // Apply the user-provided values, if any.
        for (var x in ENV) {
          // x is a key in ENV; if ENV[x] is undefined, that means it was
          // explicitly set to be so. We allow user code to do that to
          // force variables with default values to remain unset.
          if (ENV[x] === undefined) delete env[x];
          else env[x] = ENV[x];
        }
        var strings = [];
        for (var x in env) {
          strings.push(`${x}=${env[x]}`);
        }
        getEnvStrings.strings = strings;
      }
      return getEnvStrings.strings;
    };
  
  var stringToAscii = (str, buffer) => {
      for (var i = 0; i < str.length; ++i) {
        assert(str.charCodeAt(i) === (str.charCodeAt(i) & 0xff));
        HEAP8[buffer++] = str.charCodeAt(i);checkInt8(str.charCodeAt(i));
      }
      // Null-terminate the string
      HEAP8[buffer] = 0;checkInt8(0);
    };
  var _environ_get = (__environ, environ_buf) => {
      var bufSize = 0;
      getEnvStrings().forEach((string, i) => {
        var ptr = environ_buf + bufSize;
        HEAPU32[(((__environ)+(i*4))>>2)] = ptr;checkInt32(ptr);
        stringToAscii(string, ptr);
        bufSize += string.length + 1;
      });
      return 0;
    };

  var _environ_sizes_get = (penviron_count, penviron_buf_size) => {
      var strings = getEnvStrings();
      HEAPU32[((penviron_count)>>2)] = strings.length;checkInt32(strings.length);
      var bufSize = 0;
      strings.forEach((string) => bufSize += string.length + 1);
      HEAPU32[((penviron_buf_size)>>2)] = bufSize;checkInt32(bufSize);
      return 0;
    };

  function _fd_close(fd) {
  try {
  
      var stream = SYSCALLS.getStreamFromFD(fd);
      FS.close(stream);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return e.errno;
  }
  }

  function _fd_fdstat_get(fd, pbuf) {
  try {
  
      var rightsBase = 0;
      var rightsInheriting = 0;
      var flags = 0;
      {
        var stream = SYSCALLS.getStreamFromFD(fd);
        // All character devices are terminals (other things a Linux system would
        // assume is a character device, like the mouse, we have special APIs for).
        var type = stream.tty ? 2 :
                   FS.isDir(stream.mode) ? 3 :
                   FS.isLink(stream.mode) ? 7 :
                   4;
      }
      HEAP8[pbuf] = type;checkInt8(type);
      HEAP16[(((pbuf)+(2))>>1)] = flags;checkInt16(flags);
      HEAP64[(((pbuf)+(8))>>3)] = BigInt(rightsBase);checkInt64(rightsBase);
      HEAP64[(((pbuf)+(16))>>3)] = BigInt(rightsInheriting);checkInt64(rightsInheriting);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return e.errno;
  }
  }

  /** @param {number=} offset */
  var doReadv = (stream, iov, iovcnt, offset) => {
      var ret = 0;
      for (var i = 0; i < iovcnt; i++) {
        var ptr = HEAPU32[((iov)>>2)];
        var len = HEAPU32[(((iov)+(4))>>2)];
        iov += 8;
        var curr = FS.read(stream, HEAP8, ptr, len, offset);
        if (curr < 0) return -1;
        ret += curr;
        if (curr < len) break; // nothing more to read
        if (typeof offset != 'undefined') {
          offset += curr;
        }
      }
      return ret;
    };
  
  function _fd_read(fd, iov, iovcnt, pnum) {
  try {
  
      var stream = SYSCALLS.getStreamFromFD(fd);
      var num = doReadv(stream, iov, iovcnt);
      HEAPU32[((pnum)>>2)] = num;checkInt32(num);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return e.errno;
  }
  }

  
  function _fd_seek(fd, offset, whence, newOffset) {
    offset = bigintToI53Checked(offset);
  
  
  try {
  
      if (isNaN(offset)) return 61;
      var stream = SYSCALLS.getStreamFromFD(fd);
      FS.llseek(stream, offset, whence);
      HEAP64[((newOffset)>>3)] = BigInt(stream.position);checkInt64(stream.position);
      if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null; // reset readdir state
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return e.errno;
  }
  ;
  }

  function _fd_sync(fd) {
  try {
  
      var stream = SYSCALLS.getStreamFromFD(fd);
      if (stream.stream_ops?.fsync) {
        return stream.stream_ops.fsync(stream);
      }
      return 0; // we can't do anything synchronously; the in-memory FS is already synced to
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return e.errno;
  }
  }

  /** @param {number=} offset */
  var doWritev = (stream, iov, iovcnt, offset) => {
      var ret = 0;
      for (var i = 0; i < iovcnt; i++) {
        var ptr = HEAPU32[((iov)>>2)];
        var len = HEAPU32[(((iov)+(4))>>2)];
        iov += 8;
        var curr = FS.write(stream, HEAP8, ptr, len, offset);
        if (curr < 0) return -1;
        ret += curr;
        if (curr < len) {
          // No more space to write.
          break;
        }
        if (typeof offset != 'undefined') {
          offset += curr;
        }
      }
      return ret;
    };
  
  function _fd_write(fd, iov, iovcnt, pnum) {
  try {
  
      var stream = SYSCALLS.getStreamFromFD(fd);
      var num = doWritev(stream, iov, iovcnt);
      HEAPU32[((pnum)>>2)] = num;checkInt32(num);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return e.errno;
  }
  }

  var getCFunc = (ident) => {
      var func = Module['_' + ident]; // closure exported function
      assert(func, 'Cannot call unknown function ' + ident + ', make sure it is exported');
      return func;
    };
  
  
  var writeArrayToMemory = (array, buffer) => {
      assert(array.length >= 0, 'writeArrayToMemory array must have a length (should be an array or typed array)')
      HEAP8.set(array, buffer);
    };
  
  
  
  var stackAlloc = (sz) => __emscripten_stack_alloc(sz);
  var stringToUTF8OnStack = (str) => {
      var size = lengthBytesUTF8(str) + 1;
      var ret = stackAlloc(size);
      stringToUTF8(str, ret, size);
      return ret;
    };
  
  
  
  
  
    /**
     * @param {string|null=} returnType
     * @param {Array=} argTypes
     * @param {Arguments|Array=} args
     * @param {Object=} opts
     */
  var ccall = (ident, returnType, argTypes, args, opts) => {
      // For fast lookup of conversion functions
      var toC = {
        'string': (str) => {
          var ret = 0;
          if (str !== null && str !== undefined && str !== 0) { // null string
            ret = stringToUTF8OnStack(str);
          }
          return ret;
        },
        'array': (arr) => {
          var ret = stackAlloc(arr.length);
          writeArrayToMemory(arr, ret);
          return ret;
        }
      };
  
      function convertReturnValue(ret) {
        if (returnType === 'string') {
          return UTF8ToString(ret);
        }
        if (returnType === 'boolean') return Boolean(ret);
        return ret;
      }
  
      var func = getCFunc(ident);
      var cArgs = [];
      var stack = 0;
      assert(returnType !== 'array', 'Return type should not be "array".');
      if (args) {
        for (var i = 0; i < args.length; i++) {
          var converter = toC[argTypes[i]];
          if (converter) {
            if (stack === 0) stack = stackSave();
            cArgs[i] = converter(args[i]);
          } else {
            cArgs[i] = args[i];
          }
        }
      }
      var ret = func(...cArgs);
      function onDone(ret) {
        if (stack !== 0) stackRestore(stack);
        return convertReturnValue(ret);
      }
  
      ret = onDone(ret);
      return ret;
    };
  
    /**
     * @param {string=} returnType
     * @param {Array=} argTypes
     * @param {Object=} opts
     */
  var cwrap = (ident, returnType, argTypes, opts) => {
      return (...args) => ccall(ident, returnType, argTypes, args, opts);
    };





  var ALLOC_NORMAL = 0;
  
  var ALLOC_STACK = 1;
  
  
  
  var allocate = (slab, allocator) => {
      var ret;
      assert(typeof allocator == 'number', 'allocate no longer takes a type argument')
      assert(typeof slab != 'number', 'allocate no longer takes a number as arg0')
  
      if (allocator == ALLOC_STACK) {
        ret = stackAlloc(slab.length);
      } else {
        ret = _malloc(slab.length);
      }
  
      if (!slab.subarray && !slab.slice) {
        slab = new Uint8Array(slab);
      }
      HEAPU8.set(slab, ret);
      return ret;
    };


  
  var allocateUTF8OnStack = stringToUTF8OnStack;

  var functionsInTableMap;
  
  var freeTableIndexes = [];
  
  var wasmTableMirror = [];
  
  /** @type {WebAssembly.Table} */
  var wasmTable;
  var getWasmTableEntry = (funcPtr) => {
      var func = wasmTableMirror[funcPtr];
      if (!func) {
        /** @suppress {checkTypes} */
        wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr);
      }
      /** @suppress {checkTypes} */
      assert(wasmTable.get(funcPtr) == func, 'JavaScript-side Wasm function table mirror is out of date!');
      return func;
    };
  
  
  var setWasmTableEntry = (idx, func) => {
      /** @suppress {checkTypes} */
      wasmTable.set(idx, func);
      // With ABORT_ON_WASM_EXCEPTIONS wasmTable.get is overridden to return wrapped
      // functions so we need to call it here to retrieve the potential wrapper correctly
      // instead of just storing 'func' directly into wasmTableMirror
      /** @suppress {checkTypes} */
      wasmTableMirror[idx] = wasmTable.get(idx);
    };
  
  var removeFunction = (index) => {
      functionsInTableMap.delete(getWasmTableEntry(index));
      setWasmTableEntry(index, null);
      freeTableIndexes.push(index);
    };

  var uleb128Encode = (n, target) => {
      assert(n < 16384);
      if (n < 128) {
        target.push(n);
      } else {
        target.push((n % 128) | 128, n >> 7);
      }
    };
  
  var sigToWasmTypes = (sig) => {
      var typeNames = {
        'i': 'i32',
        'j': 'i64',
        'f': 'f32',
        'd': 'f64',
        'e': 'externref',
        'p': 'i32',
      };
      var type = {
        parameters: [],
        results: sig[0] == 'v' ? [] : [typeNames[sig[0]]]
      };
      for (var i = 1; i < sig.length; ++i) {
        assert(sig[i] in typeNames, 'invalid signature char: ' + sig[i]);
        type.parameters.push(typeNames[sig[i]]);
      }
      return type;
    };
  
  var generateFuncType = (sig, target) => {
      var sigRet = sig.slice(0, 1);
      var sigParam = sig.slice(1);
      var typeCodes = {
        'i': 0x7f, // i32
        'p': 0x7f, // i32
        'j': 0x7e, // i64
        'f': 0x7d, // f32
        'd': 0x7c, // f64
        'e': 0x6f, // externref
      };
  
      // Parameters, length + signatures
      target.push(0x60 /* form: func */);
      uleb128Encode(sigParam.length, target);
      for (var paramType of sigParam) {
        assert(paramType in typeCodes, `invalid signature char: ${paramType}`);
        target.push(typeCodes[paramType]);
      }
  
      // Return values, length + signatures
      // With no multi-return in MVP, either 0 (void) or 1 (anything else)
      if (sigRet == 'v') {
        target.push(0x00);
      } else {
        target.push(0x01, typeCodes[sigRet]);
      }
    };
  var convertJsFunctionToWasm = (func, sig) => {
  
      // If the type reflection proposal is available, use the new
      // "WebAssembly.Function" constructor.
      // Otherwise, construct a minimal wasm module importing the JS function and
      // re-exporting it.
      if (typeof WebAssembly.Function == "function") {
        return new WebAssembly.Function(sigToWasmTypes(sig), func);
      }
  
      // The module is static, with the exception of the type section, which is
      // generated based on the signature passed in.
      var typeSectionBody = [
        0x01, // count: 1
      ];
      generateFuncType(sig, typeSectionBody);
  
      // Rest of the module is static
      var bytes = [
        0x00, 0x61, 0x73, 0x6d, // magic ("\0asm")
        0x01, 0x00, 0x00, 0x00, // version: 1
        0x01, // Type section code
      ];
      // Write the overall length of the type section followed by the body
      uleb128Encode(typeSectionBody.length, bytes);
      bytes.push(...typeSectionBody);
  
      // The rest of the module is static
      bytes.push(
        0x02, 0x07, // import section
          // (import "e" "f" (func 0 (type 0)))
          0x01, 0x01, 0x65, 0x01, 0x66, 0x00, 0x00,
        0x07, 0x05, // export section
          // (export "f" (func 0 (type 0)))
          0x01, 0x01, 0x66, 0x00, 0x00,
      );
  
      // We can compile this wasm module synchronously because it is very small.
      // This accepts an import (at "e.f"), that it reroutes to an export (at "f")
      var module = new WebAssembly.Module(new Uint8Array(bytes));
      var instance = new WebAssembly.Instance(module, { 'e': { 'f': func } });
      var wrappedFunc = instance.exports['f'];
      return wrappedFunc;
    };
  
  
  var updateTableMap = (offset, count) => {
      if (functionsInTableMap) {
        for (var i = offset; i < offset + count; i++) {
          var item = getWasmTableEntry(i);
          // Ignore null values.
          if (item) {
            functionsInTableMap.set(item, i);
          }
        }
      }
    };
  
  
  var getFunctionAddress = (func) => {
      // First, create the map if this is the first use.
      if (!functionsInTableMap) {
        functionsInTableMap = new WeakMap();
        updateTableMap(0, wasmTable.length);
      }
      return functionsInTableMap.get(func) || 0;
    };
  
  
  
  var getEmptyTableSlot = () => {
      // Reuse a free index if there is one, otherwise grow.
      if (freeTableIndexes.length) {
        return freeTableIndexes.pop();
      }
      // Grow the table
      try {
        /** @suppress {checkTypes} */
        wasmTable.grow(1);
      } catch (err) {
        if (!(err instanceof RangeError)) {
          throw err;
        }
        throw 'Unable to grow wasm table. Set ALLOW_TABLE_GROWTH.';
      }
      return wasmTable.length - 1;
    };
  
  
  
  
  /** @param {string=} sig */
  var addFunction = (func, sig) => {
      assert(typeof func != 'undefined');
      // Check if the function is already in the table, to ensure each function
      // gets a unique index.
      var rtn = getFunctionAddress(func);
      if (rtn) {
        return rtn;
      }
  
      // It's not in the table, add it now.
  
      // Make sure functionsInTableMap is actually up to date, that is, that this
      // function is not actually in the wasm Table despite not being tracked in
      // functionsInTableMap.
      for (var i = 0; i < wasmTable.length; i++) {
        assert(getWasmTableEntry(i) != func, 'function in Table but not functionsInTableMap');
      }
  
      var ret = getEmptyTableSlot();
  
      // Set the new value.
      try {
        // Attempting to call this with JS function will cause of table.set() to fail
        setWasmTableEntry(ret, func);
      } catch (err) {
        if (!(err instanceof TypeError)) {
          throw err;
        }
        assert(typeof sig != 'undefined', 'Missing signature argument to addFunction: ' + func);
        var wrapped = convertJsFunctionToWasm(func, sig);
        setWasmTableEntry(ret, wrapped);
      }
  
      functionsInTableMap.set(func, ret);
  
      return ret;
    };

  FS.createPreloadedFile = FS_createPreloadedFile;
  FS.staticInit();
  // Set module methods based on EXPORTED_RUNTIME_METHODS
  ;
// End JS library code

function checkIncomingModuleAPI() {
  ignoredModuleProp('fetchSettings');
}
var wasmImports = {
  /** @export */
  __assert_fail: ___assert_fail,
  /** @export */
  __handle_stack_overflow: ___handle_stack_overflow,
  /** @export */
  __syscall_chmod: ___syscall_chmod,
  /** @export */
  __syscall_faccessat: ___syscall_faccessat,
  /** @export */
  __syscall_fchmod: ___syscall_fchmod,
  /** @export */
  __syscall_fchown32: ___syscall_fchown32,
  /** @export */
  __syscall_fcntl64: ___syscall_fcntl64,
  /** @export */
  __syscall_fstat64: ___syscall_fstat64,
  /** @export */
  __syscall_ftruncate64: ___syscall_ftruncate64,
  /** @export */
  __syscall_getcwd: ___syscall_getcwd,
  /** @export */
  __syscall_lstat64: ___syscall_lstat64,
  /** @export */
  __syscall_mkdirat: ___syscall_mkdirat,
  /** @export */
  __syscall_newfstatat: ___syscall_newfstatat,
  /** @export */
  __syscall_openat: ___syscall_openat,
  /** @export */
  __syscall_readlinkat: ___syscall_readlinkat,
  /** @export */
  __syscall_rmdir: ___syscall_rmdir,
  /** @export */
  __syscall_stat64: ___syscall_stat64,
  /** @export */
  __syscall_unlinkat: ___syscall_unlinkat,
  /** @export */
  __syscall_utimensat: ___syscall_utimensat,
  /** @export */
  _abort_js: __abort_js,
  /** @export */
  _localtime_js: __localtime_js,
  /** @export */
  _mmap_js: __mmap_js,
  /** @export */
  _munmap_js: __munmap_js,
  /** @export */
  _tzset_js: __tzset_js,
  /** @export */
  clock_time_get: _clock_time_get,
  /** @export */
  emscripten_date_now: _emscripten_date_now,
  /** @export */
  emscripten_get_heap_max: _emscripten_get_heap_max,
  /** @export */
  emscripten_get_now: _emscripten_get_now,
  /** @export */
  emscripten_resize_heap: _emscripten_resize_heap,
  /** @export */
  environ_get: _environ_get,
  /** @export */
  environ_sizes_get: _environ_sizes_get,
  /** @export */
  fd_close: _fd_close,
  /** @export */
  fd_fdstat_get: _fd_fdstat_get,
  /** @export */
  fd_read: _fd_read,
  /** @export */
  fd_seek: _fd_seek,
  /** @export */
  fd_sync: _fd_sync,
  /** @export */
  fd_write: _fd_write
};
var wasmExports;
createWasm();
var ___wasm_call_ctors = createExportWrapper('__wasm_call_ctors', 0);
var _sqlite3_free = Module['_sqlite3_free'] = createExportWrapper('sqlite3_free', 1);
var _sqlite3_value_text = Module['_sqlite3_value_text'] = createExportWrapper('sqlite3_value_text', 1);
var _sqlite3_prepare_v2 = Module['_sqlite3_prepare_v2'] = createExportWrapper('sqlite3_prepare_v2', 5);
var _sqlite3_step = Module['_sqlite3_step'] = createExportWrapper('sqlite3_step', 1);
var _sqlite3_reset = Module['_sqlite3_reset'] = createExportWrapper('sqlite3_reset', 1);
var _sqlite3_exec = Module['_sqlite3_exec'] = createExportWrapper('sqlite3_exec', 5);
var _sqlite3_finalize = Module['_sqlite3_finalize'] = createExportWrapper('sqlite3_finalize', 1);
var _sqlite3_column_name = Module['_sqlite3_column_name'] = createExportWrapper('sqlite3_column_name', 2);
var _sqlite3_column_text = Module['_sqlite3_column_text'] = createExportWrapper('sqlite3_column_text', 2);
var _sqlite3_column_type = Module['_sqlite3_column_type'] = createExportWrapper('sqlite3_column_type', 2);
var _sqlite3_errmsg = Module['_sqlite3_errmsg'] = createExportWrapper('sqlite3_errmsg', 1);
var _sqlite3_clear_bindings = Module['_sqlite3_clear_bindings'] = createExportWrapper('sqlite3_clear_bindings', 1);
var _sqlite3_value_blob = Module['_sqlite3_value_blob'] = createExportWrapper('sqlite3_value_blob', 1);
var _sqlite3_value_bytes = Module['_sqlite3_value_bytes'] = createExportWrapper('sqlite3_value_bytes', 1);
var _sqlite3_value_double = Module['_sqlite3_value_double'] = createExportWrapper('sqlite3_value_double', 1);
var _sqlite3_value_int = Module['_sqlite3_value_int'] = createExportWrapper('sqlite3_value_int', 1);
var _sqlite3_value_type = Module['_sqlite3_value_type'] = createExportWrapper('sqlite3_value_type', 1);
var _sqlite3_result_blob = Module['_sqlite3_result_blob'] = createExportWrapper('sqlite3_result_blob', 4);
var _sqlite3_result_double = Module['_sqlite3_result_double'] = createExportWrapper('sqlite3_result_double', 2);
var _sqlite3_result_error = Module['_sqlite3_result_error'] = createExportWrapper('sqlite3_result_error', 3);
var _sqlite3_result_int = Module['_sqlite3_result_int'] = createExportWrapper('sqlite3_result_int', 2);
var _sqlite3_result_int64 = Module['_sqlite3_result_int64'] = createExportWrapper('sqlite3_result_int64', 2);
var _sqlite3_result_null = Module['_sqlite3_result_null'] = createExportWrapper('sqlite3_result_null', 1);
var _sqlite3_result_text = Module['_sqlite3_result_text'] = createExportWrapper('sqlite3_result_text', 4);
var _sqlite3_aggregate_context = Module['_sqlite3_aggregate_context'] = createExportWrapper('sqlite3_aggregate_context', 2);
var _sqlite3_column_count = Module['_sqlite3_column_count'] = createExportWrapper('sqlite3_column_count', 1);
var _sqlite3_data_count = Module['_sqlite3_data_count'] = createExportWrapper('sqlite3_data_count', 1);
var _sqlite3_column_blob = Module['_sqlite3_column_blob'] = createExportWrapper('sqlite3_column_blob', 2);
var _sqlite3_column_bytes = Module['_sqlite3_column_bytes'] = createExportWrapper('sqlite3_column_bytes', 2);
var _sqlite3_column_double = Module['_sqlite3_column_double'] = createExportWrapper('sqlite3_column_double', 2);
var _sqlite3_bind_blob = Module['_sqlite3_bind_blob'] = createExportWrapper('sqlite3_bind_blob', 5);
var _sqlite3_bind_double = Module['_sqlite3_bind_double'] = createExportWrapper('sqlite3_bind_double', 3);
var _sqlite3_bind_int = Module['_sqlite3_bind_int'] = createExportWrapper('sqlite3_bind_int', 3);
var _sqlite3_bind_text = Module['_sqlite3_bind_text'] = createExportWrapper('sqlite3_bind_text', 5);
var _sqlite3_bind_parameter_index = Module['_sqlite3_bind_parameter_index'] = createExportWrapper('sqlite3_bind_parameter_index', 2);
var _sqlite3_sql = Module['_sqlite3_sql'] = createExportWrapper('sqlite3_sql', 1);
var _sqlite3_normalized_sql = Module['_sqlite3_normalized_sql'] = createExportWrapper('sqlite3_normalized_sql', 1);
var _sqlite3_changes = Module['_sqlite3_changes'] = createExportWrapper('sqlite3_changes', 1);
var _sqlite3_close_v2 = Module['_sqlite3_close_v2'] = createExportWrapper('sqlite3_close_v2', 1);
var _sqlite3_create_function_v2 = Module['_sqlite3_create_function_v2'] = createExportWrapper('sqlite3_create_function_v2', 9);
var _sqlite3_update_hook = Module['_sqlite3_update_hook'] = createExportWrapper('sqlite3_update_hook', 3);
var _sqlite3_open = Module['_sqlite3_open'] = createExportWrapper('sqlite3_open', 2);
var _strerror = createExportWrapper('strerror', 1);
var _malloc = Module['_malloc'] = createExportWrapper('malloc', 1);
var _free = Module['_free'] = createExportWrapper('free', 1);
var _RegisterExtensionFunctions = Module['_RegisterExtensionFunctions'] = createExportWrapper('RegisterExtensionFunctions', 1);
var _fflush = createExportWrapper('fflush', 1);
var _emscripten_builtin_memalign = createExportWrapper('emscripten_builtin_memalign', 2);
var _emscripten_stack_init = () => (_emscripten_stack_init = wasmExports['emscripten_stack_init'])();
var _emscripten_stack_get_free = () => (_emscripten_stack_get_free = wasmExports['emscripten_stack_get_free'])();
var _emscripten_stack_get_base = () => (_emscripten_stack_get_base = wasmExports['emscripten_stack_get_base'])();
var _emscripten_stack_get_end = () => (_emscripten_stack_get_end = wasmExports['emscripten_stack_get_end'])();
var __emscripten_stack_restore = (a0) => (__emscripten_stack_restore = wasmExports['_emscripten_stack_restore'])(a0);
var __emscripten_stack_alloc = (a0) => (__emscripten_stack_alloc = wasmExports['_emscripten_stack_alloc'])(a0);
var _emscripten_stack_get_current = () => (_emscripten_stack_get_current = wasmExports['emscripten_stack_get_current'])();
var ___set_stack_limits = Module['___set_stack_limits'] = createExportWrapper('__set_stack_limits', 2);


// include: postamble.js
// === Auto-generated postamble setup entry stuff ===

Module['stackSave'] = stackSave;
Module['stackRestore'] = stackRestore;
Module['stackAlloc'] = stackAlloc;
Module['cwrap'] = cwrap;
Module['addFunction'] = addFunction;
Module['removeFunction'] = removeFunction;
Module['UTF8ToString'] = UTF8ToString;
Module['ALLOC_NORMAL'] = ALLOC_NORMAL;
Module['allocate'] = allocate;
Module['allocateUTF8OnStack'] = allocateUTF8OnStack;
var missingLibrarySymbols = [
  'writeI53ToI64',
  'writeI53ToI64Clamped',
  'writeI53ToI64Signaling',
  'writeI53ToU64Clamped',
  'writeI53ToU64Signaling',
  'readI53FromU64',
  'convertI32PairToI53',
  'convertI32PairToI53Checked',
  'convertU32PairToI53',
  'getTempRet0',
  'setTempRet0',
  'exitJS',
  'inetPton4',
  'inetNtop4',
  'inetPton6',
  'inetNtop6',
  'readSockaddr',
  'writeSockaddr',
  'emscriptenLog',
  'readEmAsmArgs',
  'jstoi_q',
  'listenOnce',
  'autoResumeAudioContext',
  'getDynCaller',
  'dynCall',
  'handleException',
  'keepRuntimeAlive',
  'runtimeKeepalivePush',
  'runtimeKeepalivePop',
  'callUserCallback',
  'maybeExit',
  'asmjsMangle',
  'HandleAllocator',
  'getNativeTypeSize',
  'addOnInit',
  'addOnPostCtor',
  'addOnPreMain',
  'addOnExit',
  'STACK_SIZE',
  'STACK_ALIGN',
  'POINTER_SIZE',
  'ASSERTIONS',
  'reallyNegative',
  'unSign',
  'strLen',
  'reSign',
  'formatString',
  'intArrayToString',
  'AsciiToString',
  'UTF16ToString',
  'stringToUTF16',
  'lengthBytesUTF16',
  'UTF32ToString',
  'stringToUTF32',
  'lengthBytesUTF32',
  'stringToNewUTF8',
  'registerKeyEventCallback',
  'maybeCStringToJsString',
  'findEventTarget',
  'getBoundingClientRect',
  'fillMouseEventData',
  'registerMouseEventCallback',
  'registerWheelEventCallback',
  'registerUiEventCallback',
  'registerFocusEventCallback',
  'fillDeviceOrientationEventData',
  'registerDeviceOrientationEventCallback',
  'fillDeviceMotionEventData',
  'registerDeviceMotionEventCallback',
  'screenOrientation',
  'fillOrientationChangeEventData',
  'registerOrientationChangeEventCallback',
  'fillFullscreenChangeEventData',
  'registerFullscreenChangeEventCallback',
  'JSEvents_requestFullscreen',
  'JSEvents_resizeCanvasForFullscreen',
  'registerRestoreOldStyle',
  'hideEverythingExceptGivenElement',
  'restoreHiddenElements',
  'setLetterbox',
  'softFullscreenResizeWebGLRenderTarget',
  'doRequestFullscreen',
  'fillPointerlockChangeEventData',
  'registerPointerlockChangeEventCallback',
  'registerPointerlockErrorEventCallback',
  'requestPointerLock',
  'fillVisibilityChangeEventData',
  'registerVisibilityChangeEventCallback',
  'registerTouchEventCallback',
  'fillGamepadEventData',
  'registerGamepadEventCallback',
  'registerBeforeUnloadEventCallback',
  'fillBatteryEventData',
  'battery',
  'registerBatteryEventCallback',
  'setCanvasElementSize',
  'getCanvasElementSize',
  'jsStackTrace',
  'getCallstack',
  'convertPCtoSourceLocation',
  'wasiRightsToMuslOFlags',
  'wasiOFlagsToMuslOFlags',
  'safeSetTimeout',
  'setImmediateWrapped',
  'safeRequestAnimationFrame',
  'clearImmediateWrapped',
  'registerPostMainLoop',
  'registerPreMainLoop',
  'getPromise',
  'makePromise',
  'idsToPromises',
  'makePromiseCallback',
  'ExceptionInfo',
  'findMatchingCatch',
  'Browser_asyncPrepareDataCounter',
  'arraySum',
  'addDays',
  'getSocketFromFD',
  'getSocketAddress',
  'FS_unlink',
  'FS_mkdirTree',
  '_setNetworkCallback',
  'heapObjectForWebGLType',
  'toTypedArrayIndex',
  'webgl_enable_ANGLE_instanced_arrays',
  'webgl_enable_OES_vertex_array_object',
  'webgl_enable_WEBGL_draw_buffers',
  'webgl_enable_WEBGL_multi_draw',
  'webgl_enable_EXT_polygon_offset_clamp',
  'webgl_enable_EXT_clip_control',
  'webgl_enable_WEBGL_polygon_mode',
  'emscriptenWebGLGet',
  'computeUnpackAlignedImageSize',
  'colorChannelsInGlTextureFormat',
  'emscriptenWebGLGetTexPixelData',
  'emscriptenWebGLGetUniform',
  'webglGetUniformLocation',
  'webglPrepareUniformLocationsBeforeFirstUse',
  'webglGetLeftBracePos',
  'emscriptenWebGLGetVertexAttrib',
  '__glGetActiveAttribOrUniform',
  'writeGLArray',
  'registerWebGlEventCallback',
  'runAndAbortIfError',
  'writeStringToMemory',
  'writeAsciiToMemory',
  'setErrNo',
  'demangle',
  'stackTrace',
];
missingLibrarySymbols.forEach(missingLibrarySymbol)

var unexportedSymbols = [
  'run',
  'addRunDependency',
  'removeRunDependency',
  'out',
  'err',
  'callMain',
  'abort',
  'wasmMemory',
  'wasmExports',
  'writeStackCookie',
  'checkStackCookie',
  'readI53FromI64',
  'INT53_MAX',
  'INT53_MIN',
  'bigintToI53Checked',
  'ptrToString',
  'zeroMemory',
  'getHeapMax',
  'growMemory',
  'ENV',
  'setStackLimits',
  'ERRNO_CODES',
  'strError',
  'DNS',
  'Protocols',
  'Sockets',
  'timers',
  'warnOnce',
  'readEmAsmArgsArray',
  'jstoi_s',
  'getExecutableName',
  'asyncLoad',
  'alignMemory',
  'mmapAlloc',
  'wasmTable',
  'noExitRuntime',
  'addOnPreRun',
  'addOnPostRun',
  'getCFunc',
  'ccall',
  'uleb128Encode',
  'sigToWasmTypes',
  'generateFuncType',
  'convertJsFunctionToWasm',
  'freeTableIndexes',
  'functionsInTableMap',
  'getEmptyTableSlot',
  'updateTableMap',
  'getFunctionAddress',
  'setValue',
  'getValue',
  'PATH',
  'PATH_FS',
  'UTF8Decoder',
  'UTF8ArrayToString',
  'stringToUTF8Array',
  'stringToUTF8',
  'lengthBytesUTF8',
  'intArrayFromString',
  'stringToAscii',
  'UTF16Decoder',
  'stringToUTF8OnStack',
  'writeArrayToMemory',
  'JSEvents',
  'specialHTMLTargets',
  'findCanvasEventTarget',
  'currentFullscreenStrategy',
  'restoreOldWindowedStyle',
  'UNWIND_CACHE',
  'ExitStatus',
  'getEnvStrings',
  'checkWasiClock',
  'doReadv',
  'doWritev',
  'initRandomFill',
  'randomFill',
  'emSetImmediate',
  'emClearImmediate_deps',
  'emClearImmediate',
  'promiseMap',
  'uncaughtExceptionCount',
  'exceptionLast',
  'exceptionCaught',
  'Browser',
  'getPreloadedImageData__data',
  'wget',
  'MONTH_DAYS_REGULAR',
  'MONTH_DAYS_LEAP',
  'MONTH_DAYS_REGULAR_CUMULATIVE',
  'MONTH_DAYS_LEAP_CUMULATIVE',
  'isLeapYear',
  'ydayFromDate',
  'SYSCALLS',
  'preloadPlugins',
  'FS_createPreloadedFile',
  'FS_modeStringToFlags',
  'FS_getMode',
  'FS_stdin_getChar_buffer',
  'FS_stdin_getChar',
  'FS_createPath',
  'FS_createDevice',
  'FS_readFile',
  'FS',
  'FS_createDataFile',
  'FS_createLazyFile',
  'MEMFS',
  'TTY',
  'PIPEFS',
  'SOCKFS',
  'tempFixedLengthArray',
  'miniTempWebGLFloatBuffers',
  'miniTempWebGLIntBuffers',
  'GL',
  'AL',
  'GLUT',
  'EGL',
  'GLEW',
  'IDBStore',
  'SDL',
  'SDL_gfx',
  'ALLOC_STACK',
  'allocateUTF8',
  'print',
  'printErr',
];
unexportedSymbols.forEach(unexportedRuntimeSymbol);



var calledRun;

function stackCheckInit() {
  // This is normally called automatically during __wasm_call_ctors but need to
  // get these values before even running any of the ctors so we call it redundantly
  // here.
  _emscripten_stack_init();
  // TODO(sbc): Move writeStackCookie to native to to avoid this.
  writeStackCookie();
}

function run() {

  if (runDependencies > 0) {
    dependenciesFulfilled = run;
    return;
  }

  stackCheckInit();

  preRun();

  // a preRun added a dependency, run will be called later
  if (runDependencies > 0) {
    dependenciesFulfilled = run;
    return;
  }

  function doRun() {
    // run may have just been called through dependencies being fulfilled just in this very frame,
    // or while the async setStatus time below was happening
    assert(!calledRun);
    calledRun = true;
    Module['calledRun'] = true;

    if (ABORT) return;

    initRuntime();

    Module['onRuntimeInitialized']?.();
    consumedModuleProp('onRuntimeInitialized');

    assert(!Module['_main'], 'compiled without a main, but one is present. if you added it from JS, use Module["onRuntimeInitialized"]');

    postRun();
  }

  if (Module['setStatus']) {
    Module['setStatus']('Running...');
    setTimeout(() => {
      setTimeout(() => Module['setStatus'](''), 1);
      doRun();
    }, 1);
  } else
  {
    doRun();
  }
  checkStackCookie();
}

function checkUnflushedContent() {
  // Compiler settings do not allow exiting the runtime, so flushing
  // the streams is not possible. but in ASSERTIONS mode we check
  // if there was something to flush, and if so tell the user they
  // should request that the runtime be exitable.
  // Normally we would not even include flush() at all, but in ASSERTIONS
  // builds we do so just for this check, and here we see if there is any
  // content to flush, that is, we check if there would have been
  // something a non-ASSERTIONS build would have not seen.
  // How we flush the streams depends on whether we are in SYSCALLS_REQUIRE_FILESYSTEM=0
  // mode (which has its own special function for this; otherwise, all
  // the code is inside libc)
  var oldOut = out;
  var oldErr = err;
  var has = false;
  out = err = (x) => {
    has = true;
  }
  try { // it doesn't matter if it fails
    _fflush(0);
    // also flush in the JS FS layer
    ['stdout', 'stderr'].forEach((name) => {
      var info = FS.analyzePath('/dev/' + name);
      if (!info) return;
      var stream = info.object;
      var rdev = stream.rdev;
      var tty = TTY.ttys[rdev];
      if (tty?.output?.length) {
        has = true;
      }
    });
  } catch(e) {}
  out = oldOut;
  err = oldErr;
  if (has) {
    warnOnce('stdio streams had content in them that was not flushed. you should set EXIT_RUNTIME to 1 (see the Emscripten FAQ), or make sure to emit a newline when you printf etc.');
  }
}

if (Module['preInit']) {
  if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']];
  while (Module['preInit'].length > 0) {
    Module['preInit'].pop()();
  }
}
consumedModuleProp('preInit');

run();

// end include: postamble.js



        // The shell-pre.js and emcc-generated code goes above
        return Module;
    }); // The end of the promise being returned

  return initSqlJsPromise;
} // The end of our initSqlJs function

// This bit below is copied almost exactly from what you get when you use the MODULARIZE=1 flag with emcc
// However, we don't want to use the emcc modularization. See shell-pre.js
if (typeof exports === 'object' && typeof module === 'object'){
    module.exports = initSqlJs;
    // This will allow the module to be used in ES6 or CommonJS
    module.exports.default = initSqlJs;
}
else if (typeof define === 'function' && define['amd']) {
    define([], function() { return initSqlJs; });
}
else if (typeof exports === 'object'){
    exports["Module"] = initSqlJs;
}
