@shutter-network/shutter-sdk/dist/blst.js

TypeScript SDK for interacting with the Shutter crypto library, providing encryption, decryption, and utilities.

// 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 blst = {}; ..generated code..
// 4. External script tag defines var blst.
// We need to check if blst 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 blst
// after the generated code, you will need to define   var blst = {};
// before the code. Then that object will be used in the code, and you
// can continue to use blst afterwards as well.
var blst = typeof blst != 'undefined' ? blst : {};

// 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 importScripts == 'function';
// 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';
var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;

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

if (ENVIRONMENT_IS_NODE) {
    // `require()` is no-op in an ESM module, use `createRequire()` to construct
    // the require()` function.  This is only necessary for multi-environment
    // builds, `-sENVIRONMENT=node` emits a static import declaration instead.
    // TODO: Swap all `require()`'s with `import()`'s?
}

// --pre-jses are emitted after the blst integration code, so that they can
// refer to blst (if they choose; they can also define blst)

// Sometimes an existing blst 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 = Object.assign({}, blst);

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 (blst['locateFile']) {
        return blst['locateFile'](path, scriptDirectory);
    }
    return scriptDirectory + path;
}

// Hooks that are implemented differently in different runtime environments.
var read_, 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
    read_ = (filename, binary) => {
        // We need to re-wrap `file://` strings to URLs. Normalizing isn't
        // necessary in that case, the path should already be absolute.
        filename = isFileURI(filename) ? new URL(filename) : nodePath.normalize(filename);
        return fs.readFileSync(filename, binary ? undefined : 'utf8');
    };

    readBinary = (filename) => {
        var ret = read_(filename, true);
        if (!ret.buffer) {
            ret = new Uint8Array(ret);
        }
        assert(ret.buffer);
        return ret;
    };

    readAsync = (filename, onload, onerror, binary = true) => {
        // See the comment in the `read_` function.
        filename = isFileURI(filename) ? new URL(filename) : nodePath.normalize(filename);
        fs.readFile(filename, binary ? undefined : 'utf8', (err, data) => {
            if (err) onerror(err);
            else onload(binary ? data.buffer : data);
        });
    };
    // end include: node_shell_read.js
    if (!blst['thisProgram'] && process.argv.length > 1) {
        thisProgram = process.argv[1].replace(/\\/g, '/');
    }

    arguments_ = process.argv.slice(2);

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

    process.on('uncaughtException', (ex) => {
        // suppress ExitStatus exceptions from showing an error
        if (ex !== 'unwind' && !(ex instanceof ExitStatus) && !(ex.context instanceof ExitStatus)) {
            throw ex;
        }
    });

    quit_ = (status, toThrow) => {
        process.exitCode = status;
        throw toThrow;
    };
} else if (ENVIRONMENT_IS_SHELL) {
    if (
        (typeof process == 'object' && typeof require === 'function') ||
        typeof window == 'object' ||
        typeof importScripts == 'function'
    )
        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?)',
        );
}

// 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.
else 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.substr(
            0,
            scriptDirectory.replace(/[?#].*/, '').lastIndexOf('/') + 1,
        );
    }

    if (!(typeof window == 'object' || typeof importScripts == 'function'))
        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
        read_ = (url) => {
            var xhr = new XMLHttpRequest();
            xhr.open('GET', url, false);
            xhr.send(null);
            return xhr.responseText;
        };

        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 = (url, onload, onerror) => {
            // 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)) {
                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
                        onload(xhr.response);
                        return;
                    }
                    onerror();
                };
                xhr.onerror = onerror;
                xhr.send(null);
                return;
            }
            fetch(url, { credentials: 'same-origin' })
                .then((response) => {
                    if (response.ok) {
                        return response.arrayBuffer();
                    }
                    return Promise.reject(new Error(response.status + ' : ' + response.url));
                })
                .then(onload, onerror);
        };
        // end include: web_or_worker_shell_read.js
    }
} else {
    throw new Error('environment detection error');
}

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

// Merge back in the overrides
Object.assign(blst, 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 blst object. This applies blst.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 (blst['arguments']) arguments_ = blst['arguments'];
legacyModuleProp('arguments', 'arguments_');

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

if (blst['quit']) quit_ = blst['quit'];
legacyModuleProp('quit', 'quit_');

// 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 blst JS APIs.
assert(
    typeof blst['memoryInitializerPrefixURL'] == 'undefined',
    'blst.memoryInitializerPrefixURL option was removed, use blst.locateFile instead',
);
assert(
    typeof blst['pthreadMainPrefixURL'] == 'undefined',
    'blst.pthreadMainPrefixURL option was removed, use blst.locateFile instead',
);
assert(
    typeof blst['cdInitializerPrefixURL'] == 'undefined',
    'blst.cdInitializerPrefixURL option was removed, use blst.locateFile instead',
);
assert(
    typeof blst['filePackagePrefixURL'] == 'undefined',
    'blst.filePackagePrefixURL option was removed, use blst.locateFile instead',
);
assert(typeof blst['read'] == 'undefined', 'blst.read option was removed (modify read_ in JS)');
assert(
    typeof blst['readAsync'] == 'undefined',
    'blst.readAsync option was removed (modify readAsync in JS)',
);
assert(
    typeof blst['readBinary'] == 'undefined',
    'blst.readBinary option was removed (modify readBinary in JS)',
);
assert(
    typeof blst['setWindowTitle'] == 'undefined',
    'blst.setWindowTitle option was removed (modify emscripten_set_window_title in JS)',
);
assert(
    typeof blst['TOTAL_MEMORY'] == 'undefined',
    'blst.TOTAL_MEMORY has been renamed blst.INITIAL_MEMORY',
);
legacyModuleProp('asm', 'wasmExports');
legacyModuleProp('read', 'read_');
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;
if (blst['wasmBinary']) wasmBinary = blst['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,
    /** @type {!Float64Array} */
    HEAPF64;

// include: runtime_shared.js
function updateMemoryViews() {
    var b = wasmMemory.buffer;
    blst['HEAP8'] = HEAP8 = new Int8Array(b);
    blst['HEAP16'] = HEAP16 = new Int16Array(b);
    blst['HEAPU8'] = HEAPU8 = new Uint8Array(b);
    blst['HEAPU16'] = HEAPU16 = new Uint16Array(b);
    blst['HEAP32'] = HEAP32 = new Int32Array(b);
    blst['HEAPU32'] = HEAPU32 = new Uint32Array(b);
    blst['HEAPF32'] = HEAPF32 = new Float32Array(b);
    blst['HEAPF64'] = HEAPF64 = new Float64Array(b);
}
// end include: runtime_shared.js
assert(
    !blst['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(
    !blst['wasmMemory'],
    'Use of `wasmMemory` detected.  Use -sIMPORTED_MEMORY to define wasmMemory externally',
);
assert(
    !blst['INITIAL_MEMORY'],
    'Detected runtime INITIAL_MEMORY setting.  Use -sIMPORTED_MEMORY to define wasmMemory dynamically',
);

// 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;
    HEAPU32[(max + 4) >> 2] = 0x89bacdfe;
    // Also test the global address 0 for integrity.
    HEAPU32[0 >> 2] = 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_assertions.js
// Endianness check
(function () {
    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)';
})();

// end include: runtime_assertions.js
var __ATPRERUN__ = []; // functions called before the runtime is initialized
var __ATINIT__ = []; // functions called during startup
var __ATEXIT__ = []; // functions called during shutdown
var __ATPOSTRUN__ = []; // functions called after the main() is called

var runtimeInitialized = false;

function preRun() {
    if (blst['preRun']) {
        if (typeof blst['preRun'] == 'function') blst['preRun'] = [blst['preRun']];
        while (blst['preRun'].length) {
            addOnPreRun(blst['preRun'].shift());
        }
    }
    callRuntimeCallbacks(__ATPRERUN__);
}

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

    checkStackCookie();

    callRuntimeCallbacks(__ATINIT__);
}

function postRun() {
    checkStackCookie();

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

    callRuntimeCallbacks(__ATPOSTRUN__);
}

function addOnPreRun(cb) {
    __ATPRERUN__.unshift(cb);
}

function addOnInit(cb) {
    __ATINIT__.unshift(cb);
}

function addOnExit(cb) { }

function addOnPostRun(cb) {
    __ATPOSTRUN__.unshift(cb);
}

// include: runtime_math.js
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc

assert(
    Math.imul,
    'This browser does not support Math.imul(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill',
);
assert(
    Math.fround,
    'This browser does not support Math.fround(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill',
);
assert(
    Math.clz32,
    'This browser does not support Math.clz32(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill',
);
assert(
    Math.trunc,
    'This browser does not support Math.trunc(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill',
);
// end include: runtime_math.js
// 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
// blst.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 runDependencyWatcher = null;
var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled
var runDependencyTracking = {};

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

function addRunDependency(id) {
    runDependencies++;

    blst['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--;

    blst['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) {
    blst['onAbort']?.(what);

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

    ABORT = true;
    EXITSTATUS = 1;

    // 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;
}

// include: memoryprofiler.js
// end include: memoryprofiler.js
// show errors on likely calls to FS when it was not included
var FS = {
    error() {
        abort(
            'Filesystem support (FS) was not included. The problem is that you are using files from JS, but files were not used from C/C++, so filesystem support was not auto-included. You can force-include filesystem support with -sFORCE_FILESYSTEM',
        );
    },
    init() {
        FS.error();
    },
    createDataFile() {
        FS.error();
    },
    createPreloadedFile() {
        FS.error();
    },
    createLazyFile() {
        FS.error();
    },
    open() {
        FS.error();
    },
    mkdev() {
        FS.error();
    },
    registerDevice() {
        FS.error();
    },
    analyzePath() {
        FS.error();
    },

    ErrnoError() {
        FS.error();
    },
};
blst['FS_createDataFile'] = FS.createDataFile;
blst['FS_createPreloadedFile'] = FS.createPreloadedFile;

// include: URIUtils.js
// Prefix of data URIs emitted by SINGLE_FILE and related options.
var dataURIPrefix = 'data:application/octet-stream;base64,';

/**
 * Indicates whether filename is a base64 data URI.
 * @noinline
 */
var isDataURI = (filename) => filename.startsWith(dataURIPrefix);

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

// include: runtime_exceptions.js
// Base Emscripten EH error class
class EmscriptenEH extends Error { }

class EmscriptenSjLj extends EmscriptenEH { }

class CppException extends EmscriptenEH {
    constructor(excPtr) {
        super(excPtr);
        this.excPtr = excPtr;
        const excInfo = getExceptionMessage(excPtr);
        this.name = excInfo[0];
        this.message = excInfo[1];
    }
}
// end include: runtime_exceptions.js
function findWasmBinary() {
    var f = 'blst.wasm';
    if (!isDataURI(f)) {
        return locateFile(f);
    }
    return f;
}

var wasmBinaryFile;

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';
}

function getBinaryPromise(binaryFile) {
    // If we don't have the binary yet, load it asynchronously using readAsync.
    if (!wasmBinary) {
        // Fetch the binary use readAsync
        return new Promise((resolve, reject) => {
            readAsync(
                binaryFile,
                (response) => resolve(new Uint8Array(/** @type{!ArrayBuffer} */(response))),
                (error) => {
                    try {
                        resolve(getBinarySync(binaryFile));
                    } catch (e) {
                        reject(e);
                    }
                },
            );
        });
    }

    // Otherwise, getBinarySync should be able to get it synchronously
    return Promise.resolve().then(() => getBinarySync(binaryFile));
}

function instantiateArrayBuffer(binaryFile, imports, receiver) {
    return getBinaryPromise(binaryFile)
        .then((binary) => {
            return WebAssembly.instantiate(binary, imports);
        })
        .then(receiver, (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);
        });
}

function instantiateAsync(binary, binaryFile, imports, callback) {
    if (
        !binary &&
        typeof WebAssembly.instantiateStreaming == 'function' &&
        !isDataURI(binaryFile) &&
        // 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 &&
        typeof fetch == 'function'
    ) {
        return fetch(binaryFile, { credentials: 'same-origin' }).then((response) => {
            // Suppress closure warning here since the upstream definition for
            // instantiateStreaming only allows Promise<Repsponse> rather than
            // an actual Response.
            // TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure is fixed.
            /** @suppress {checkTypes} */
            var result = WebAssembly.instantiateStreaming(response, imports);

            return result.then(callback, function (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');
                return instantiateArrayBuffer(binaryFile, imports, callback);
            });
        });
    }
    return instantiateArrayBuffer(binaryFile, imports, callback);
}

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

// Create the wasm instance.
// Receives the wasm imports, returns the exports.
function createWasm() {
    var info = getWasmImports();
    // 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.blst=} 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');

        addOnInit(wasmExports['__wasm_call_ctors']);

        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 blst
    // (for example, if the order of elements is wrong, and the one defining blst is
    // later), so we save blst and check it later.
    var trueModule = blst;
    function receiveInstantiationResult(result) {
        // 'result' is a ResultObject object which has both the module and instance.
        // receiveInstance() will swap in the exports (to blst.asm) so they can be called
        assert(
            blst === trueModule,
            'the blst 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.
        receiveInstance(result['instance']);
    }

    // User shell pages can write their own blst.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 (blst['instantiateWasm']) {
        try {
            return blst['instantiateWasm'](info, receiveInstance);
        } catch (e) {
            err(`blst.instantiateWasm callback failed with error: ${e}`);
            return false;
        }
    }

    if (!wasmBinaryFile) wasmBinaryFile = findWasmBinary();

    instantiateAsync(wasmBinary, wasmBinaryFile, info, receiveInstantiationResult);
    return {}; // no exports yet; we'll fill them in later
}

// Globals used by JS i64 conversions (see makeSetValue)
var tempDouble;
var tempI64;

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

function ignoredModuleProp(prop) {
    if (Object.getOwnPropertyDescriptor(blst, prop)) {
        abort(`\`blst.${prop}\` was supplied but \`${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'
    );
}

function missingGlobal(sym, msg) {
    if (typeof globalThis != 'undefined') {
        Object.defineProperty(globalThis, sym, {
            configurable: true,
            get() {
                warnOnce(`\`${sym}\` is not longer defined by emscripten. ${msg}`);
                return undefined;
            },
        });
    }
}

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

function missingLibrarySymbol(sym) {
    if (typeof globalThis != 'undefined' && !Object.getOwnPropertyDescriptor(globalThis, sym)) {
        Object.defineProperty(globalThis, sym, {
            configurable: true,
            get() {
                // 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);
                return undefined;
            },
        });
    }
    // Any symbol that is not included from the JS library is also (by definition)
    // not exported on the blst object.
    unexportedRuntimeSymbol(sym);
}

function unexportedRuntimeSymbol(sym) {
    if (!Object.getOwnPropertyDescriptor(blst, sym)) {
        Object.defineProperty(blst, 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);
            },
        });
    }
}

// Used by XXXXX_DEBUG settings to output debug messages.
function dbg(...args) {
    // 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
// === Body ===

function blst_exception(code) {
    throw new Error(BLST_ERROR_str[code]);
}

// end include: preamble.js

/** @constructor */
function ExitStatus(status) {
    this.name = 'ExitStatus';
    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()(blst);
    }
};

/**
 * @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':
            abort('to do getValue(i64) use WASM_BIGINT');
        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 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=)} */
function 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 noExitRuntime = blst['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');
};

/**
 * @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;
            break;
        case 'i8':
            HEAP8[ptr] = value;
            break;
        case 'i16':
            HEAP16[ptr >> 1] = value;
            break;
        case 'i32':
            HEAP32[ptr >> 2] = value;
            break;
        case 'i64':
            abort('to do setValue(i64) use WASM_BIGINT');
        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('utf8') : 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, maxBytesToRead) => {
    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 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 exceptionCaught = [];

var uncaughtExceptionCount = 0;
var ___cxa_begin_catch = (ptr) => {
    var info = new ExceptionInfo(ptr);
    if (!info.get_caught()) {
        info.set_caught(true);
        uncaughtExceptionCount--;
    }
    info.set_rethrown(false);
    exceptionCaught.push(info);
    ___cxa_increment_exception_refcount(info.excPtr);
    return info.get_exception_ptr();
};

var exceptionLast = 0;

var ___cxa_end_catch = () => {
    // Clear state flag.
    _setThrew(0, 0);
    assert(exceptionCaught.length > 0);
    // Call destructor if one is registered then clear it.
    var info = exceptionCaught.pop();

    ___cxa_decrement_exception_refcount(info.excPtr);
    exceptionLast = 0; // XXX in decRef?
};

class ExceptionInfo {
    // excPtr - Thrown object pointer to wrap. Metadata pointer is calculated from it.
    constructor(excPtr) {
        this.excPtr = excPtr;
        this.ptr = excPtr - 24;
    }

    set_type(type) {
        HEAPU32[(this.ptr + 4) >> 2] = type;
    }

    get_type() {
        return HEAPU32[(this.ptr + 4) >> 2];
    }

    set_destructor(destructor) {
        HEAPU32[(this.ptr + 8) >> 2] = destructor;
    }

    get_destructor() {
        return HEAPU32[(this.ptr + 8) >> 2];
    }

    set_caught(caught) {
        caught = caught ? 1 : 0;
        HEAP8[this.ptr + 12] = caught;
    }

    get_caught() {
        return HEAP8[this.ptr + 12] != 0;
    }

    set_rethrown(rethrown) {
        rethrown = rethrown ? 1 : 0;
        HEAP8[this.ptr + 13] = rethrown;
    }

    get_rethrown() {
        return HEAP8[this.ptr + 13] != 0;
    }

    // Initialize native structure fields. Should be called once after allocated.
    init(type, destructor) {
        this.set_adjusted_ptr(0);
        this.set_type(type);
        this.set_destructor(destructor);
    }

    set_adjusted_ptr(adjustedPtr) {
        HEAPU32[(this.ptr + 16) >> 2] = adjustedPtr