@livestore/sqlite-wasm
Version:
SQLite Wasm conveniently wrapped as an ES Module.
1,394 lines (1,283 loc) • 883 kB
JavaScript
/*
** LICENSE for the sqlite3 WebAssembly/JavaScript APIs.
**
** This bundle (typically released as sqlite3.js or sqlite3.mjs)
** is an amalgamation of JavaScript source code from two projects:
**
** 1) https://emscripten.org: the Emscripten "glue code" is covered by
** the terms of the MIT license and University of Illinois/NCSA
** Open Source License, as described at:
**
** https://emscripten.org/docs/introducing_emscripten/emscripten_license.html
**
** 2) https://sqlite.org: all code and documentation labeled as being
** from this source are released under the same terms as the sqlite3
** C library:
**
** 2022-10-16
**
** The author disclaims copyright to this source code. In place of a
** legal notice, here is a blessing:
**
** * May you do good and not evil.
** * May you find forgiveness for yourself and forgive others.
** * May you share freely, never taking more than you give.
*/
/*
** This code was built from sqlite3 version...
**
** SQLITE_VERSION "3.46.0"
** SQLITE_VERSION_NUMBER 3046000
** SQLITE_SOURCE_ID "2024-03-07 12:34:26 720ce06d93a9e4cc25c34c873c82165d8801f208c22701e51538f3210de8alt1"
**
** Using the Emscripten SDK version emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld) 3.1.47-git.
*/
var sqlite3InitModule = (() => {
var _scriptDir =
typeof document !== 'undefined' && document.currentScript
? document.currentScript.src
: undefined;
return function (moduleArg = {}) {
// 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(Module) { ..generated code.. }
// 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 = moduleArg;
// Set up the promise that indicates the Module is initialized
var readyPromiseResolve, readyPromiseReject;
Module['ready'] = new Promise((resolve, reject) => {
readyPromiseResolve = resolve;
readyPromiseReject = reject;
});
// --pre-jses are emitted after the Module integration code, so that they can
// refer to Module (if they choose; they can also define Module)
/**
* BEGIN FILE: api/pre-js.js
*
* This file is intended to be prepended to the sqlite3.js build using
* Emscripten's --pre-js=THIS_FILE flag (or equivalent).
*/
// See notes in extern-post-js.js
const sqlite3InitModuleState =
globalThis.sqlite3InitModuleState ||
Object.assign(Object.create(null), {
debugModule: () => {},
});
delete globalThis.sqlite3InitModuleState;
sqlite3InitModuleState.debugModule(
'globalThis.location =',
globalThis.location,
);
/**
* This custom locateFile() tries to figure out where to load `path` from.
* The intent is to provide a way for foo/bar/X.js loaded from a Worker
* constructor or importScripts() to be able to resolve foo/bar/X.wasm (in
* the latter case, with some help):
*
* 1. If URL param named the same as `path` is set, it is returned.
* 2. If sqlite3InitModuleState.sqlite3Dir is set, then (thatName + path) is
* returned (note that it's assumed to end with '/').
* 3. If this code is running in the main UI thread AND it was loaded from a
* SCRIPT tag, the directory part of that URL is used as the prefix.
* (This form of resolution unfortunately does not function for scripts
* loaded via importScripts().)
* 4. If none of the above apply, (prefix+path) is returned.
*/
Module['locateFile'] = function (path, prefix) {
'use strict';
let theFile;
const up = this.urlParams;
if (up.has(path)) {
theFile = up.get(path);
} else if (this.sqlite3Dir) {
theFile = this.sqlite3Dir + path;
} else if (this.scriptDir) {
theFile = this.scriptDir + path;
} else {
theFile = prefix + path;
}
sqlite3InitModuleState.debugModule(
'locateFile(',
arguments[0],
',',
arguments[1],
')',
'sqlite3InitModuleState.scriptDir =',
this.scriptDir,
'up.entries() =',
Array.from(up.entries()),
'result =',
theFile,
);
return theFile;
}.bind(sqlite3InitModuleState);
/**
* Bug warning: a custom Module.instantiateWasm() does not work in WASMFS
* builds:
*
* https://github.com/emscripten-core/emscripten/issues/17951
*
* In such builds we must disable this.
*/
const xNameOfInstantiateWasm = false
? 'instantiateWasm'
: 'emscripten-bug-17951';
Module[xNameOfInstantiateWasm] = function callee(imports, onSuccess) {
imports.env.foo = function () {};
const uri = Module.locateFile(
callee.uri,
'undefined' ===
typeof scriptDirectory /*var defined by Emscripten glue*/
? ''
: scriptDirectory,
);
sqlite3InitModuleState.debugModule('instantiateWasm() uri =', uri);
const wfetch = () => fetch(uri, { credentials: 'same-origin' });
const loadWasm = WebAssembly.instantiateStreaming
? async () => {
return WebAssembly.instantiateStreaming(wfetch(), imports).then(
(arg) => onSuccess(arg.instance, arg.module),
);
}
: async () => {
// Safari < v15
return wfetch()
.then((response) => response.arrayBuffer())
.then((bytes) => WebAssembly.instantiate(bytes, imports))
.then((arg) => onSuccess(arg.instance, arg.module));
};
loadWasm();
return {};
};
/*
It is literally impossible to reliably get the name of _this_ script
at runtime, so impossible to derive X.wasm from script name
X.js. Thus we need, at build-time, to redefine
Module[xNameOfInstantiateWasm].uri by appending it to a build-specific
copy of this file with the name of the wasm file. This is apparently
why Emscripten hard-codes the name of the wasm file into their glue
scripts.
*/
Module[xNameOfInstantiateWasm].uri = 'sqlite3.wasm';
/* END FILE: api/pre-js.js, noting that the build process may add a
line after this one to change the above .uri to a build-specific
one. */
// 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 = Object.assign({}, Module);
var arguments_ = [];
var thisProgram = './this.program';
var quit_ = (status, toThrow) => {
throw toThrow;
};
// 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;
// `/` 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 read_, readAsync, readBinary;
// 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;
}
// When MODULARIZE, this JS may be executed later, after document.currentScript
// is gone, so we saved it, and we use it here instead of any other info.
if (_scriptDir) {
scriptDirectory = _scriptDir;
}
// 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.indexOf('blob:') !== 0) {
scriptDirectory = scriptDirectory.substr(
0,
scriptDirectory.replace(/[?#].*/, '').lastIndexOf('/') + 1,
);
} else {
scriptDirectory = '';
}
// Differentiate the Web Worker from the Node Worker case, as reading must
// be done differently.
{
// 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) => {
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);
};
// end include: web_or_worker_shell_read.js
}
} else {
}
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 e.g. in memoryInitializerRequest, which is a large typed array.
moduleOverrides = null;
// 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'];
if (Module['thisProgram']) thisProgram = Module['thisProgram'];
if (Module['quit']) quit_ = Module['quit'];
// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message
// 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 (Module['wasmBinary']) wasmBinary = Module['wasmBinary'];
if (typeof WebAssembly != 'object') {
abort('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;
/** @type {function( any , string=)} */
function assert(condition, text) {
if (!condition) {
// This build was created without ASSERTIONS defined. `assert()` should not
// ever be called in this configuration but in case there are callers in
// the wild leave this simple abort() implemenation here for now.
abort(text);
}
}
// 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;
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);
}
// In non-standalone/normal mode, we create the memory here.
// include: runtime_init_memory.js
// Create the wasm memory. (Note: this only applies if IMPORTED_MEMORY is defined)
var INITIAL_MEMORY = Module['INITIAL_MEMORY'] || 16777216;
assert(
INITIAL_MEMORY >= 524288,
'INITIAL_MEMORY should be larger than STACK_SIZE, was ' +
INITIAL_MEMORY +
'! (STACK_SIZE=' +
524288 +
')',
);
// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
if (Module['wasmMemory']) {
wasmMemory = Module['wasmMemory'];
} else {
wasmMemory = new WebAssembly.Memory({
initial: INITIAL_MEMORY / 65536,
// In theory we should not need to emit the maximum if we want "unlimited"
// or 4GB of memory, but VMs error on that atm, see
// https://github.com/emscripten-core/emscripten/issues/14130
// And in the pthreads case we definitely need to emit a maximum. So
// always emit one.
maximum: 2147483648 / 65536,
});
}
updateMemoryViews();
// If the user provides an incorrect length, just use that length instead rather than providing the user to
// specifically provide the memory length with Module['INITIAL_MEMORY'].
INITIAL_MEMORY = wasmMemory.buffer.byteLength;
// end include: runtime_init_memory.js
// include: runtime_stack_check.js
// end include: runtime_stack_check.js
// include: runtime_assertions.js
// 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 (Module['preRun']) {
if (typeof Module['preRun'] == 'function')
Module['preRun'] = [Module['preRun']];
while (Module['preRun'].length) {
addOnPreRun(Module['preRun'].shift());
}
}
callRuntimeCallbacks(__ATPRERUN__);
}
function initRuntime() {
runtimeInitialized = true;
if (!Module['noFSInit'] && !FS.init.initialized) FS.init();
FS.ignorePermissions = false;
TTY.init();
callRuntimeCallbacks(__ATINIT__);
}
function postRun() {
if (Module['postRun']) {
if (typeof Module['postRun'] == 'function')
Module['postRun'] = [Module['postRun']];
while (Module['postRun'].length) {
addOnPostRun(Module['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
// 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
// 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 runDependencyWatcher = null;
var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled
function getUniqueRunDependency(id) {
return id;
}
function addRunDependency(id) {
runDependencies++;
if (Module['monitorRunDependencies']) {
Module['monitorRunDependencies'](runDependencies);
}
}
function removeRunDependency(id) {
runDependencies--;
if (Module['monitorRunDependencies']) {
Module['monitorRunDependencies'](runDependencies);
}
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) {
if (Module['onAbort']) {
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;
EXITSTATUS = 1;
what += '. Build with -sASSERTIONS for more info.';
// 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
// defintion 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);
readyPromiseReject(e);
// 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
// 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
// include: runtime_exceptions.js
// end include: runtime_exceptions.js
var wasmBinaryFile;
wasmBinaryFile = 'sqlite3.wasm';
if (!isDataURI(wasmBinaryFile)) {
wasmBinaryFile = locateFile(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, try to load it asynchronously.
// 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 fetch if it is available and the url is not a file, otherwise fall back to XHR.
if (!wasmBinary && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER)) {
if (typeof fetch == 'function') {
return fetch(binaryFile, { credentials: 'same-origin' })
.then((response) => {
if (!response['ok']) {
throw "failed to load wasm binary file at '" + binaryFile + "'";
}
return response['arrayBuffer']();
})
.catch(() => getBinarySync(binaryFile));
}
}
// 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((instance) => {
return instance;
})
.then(receiver, (reason) => {
err(`failed to asynchronously prepare wasm: ${reason}`);
abort(reason);
});
}
function instantiateAsync(binary, binaryFile, imports, callback) {
if (
!binary &&
typeof WebAssembly.instantiateStreaming == 'function' &&
!isDataURI(binaryFile) &&
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);
}
// Create the wasm instance.
// Receives the wasm imports, returns the exports.
function createWasm() {
// prepare imports
var info = {
env: wasmImports,
wasi_snapshot_preview1: wasmImports,
};
// 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;
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.
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
// 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 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']) {
try {
return Module['instantiateWasm'](info, receiveInstance);
} catch (e) {
err(`Module.instantiateWasm callback failed with error: ${e}`);
// If instantiation fails, reject the module ready promise.
readyPromiseReject(e);
}
}
// If instantiation fails, reject the module ready promise.
instantiateAsync(
wasmBinary,
wasmBinaryFile,
info,
receiveInstantiationResult,
).catch(readyPromiseReject);
return {}; // no exports yet; we'll fill them in later
}
// include: runtime_debug.js
// end include: runtime_debug.js
// === Body ===
// end include: preamble.js
/** @class */
function ExitStatus(status) {
this.name = 'ExitStatus';
this.message = `Program terminated with exit(${status})`;
this.status = status;
}
var callRuntimeCallbacks = (callbacks) => {
while (callbacks.length > 0) {
// Pass the module as the first argument.
callbacks.shift()(Module);
}
};
/**
* @param {number} ptr
* @param {string} type
*/
function getValue(ptr, type = 'i8') {
if (type.endsWith('*')) type = '*';
switch (type) {
case 'i1':
return HEAP8[ptr >> 0];
case 'i8':
return HEAP8[ptr >> 0];
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;
/**
* @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 >> 0] = value;
break;
case 'i8':
HEAP8[ptr >> 0] = value;
break;
case 'i16':
HEAP16[ptr >> 1] = value;
break;
case 'i32':
HEAP32[ptr >> 2] = value;
break;
case 'i64':
HEAP64[ptr >> 3] = BigInt(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: ${type}`);
}
}
var PATH = {
isAbs: (path) => path.charAt(0) === '/',
splitPath: (filename) => {
var splitPathRe =
/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
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.substr(-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.substr(0, dir.length - 1);
}
return root + dir;
},
basename: (path) => {
// EMSCRIPTEN return '/'' for '/', not an empty string
if (path === '/') return '/';
path = PATH.normalize(path);
path = path.replace(/\/$/, '');
var lastSlash = path.lastIndexOf('/');
if (lastSlash === -1) return path;
return path.substr(lastSlash + 1);
},
join: function () {
var paths = Array.prototype.slice.call(arguments);
return PATH.normalize(paths.join('/'));
},
join2: (l, r) => {
return PATH.normalize(l + '/' + r);
},
};
var initRandomFill = () => {
if (
typeof crypto == 'object' &&
typeof crypto['getRandomValues'] == 'function'
) {
// for modern web browsers
return (view) => crypto.getRandomValues(view);
}
// we couldn't find a proper implementation, as Math.random() is not suitable for /dev/random, see emscripten-core/emscripten/pull/7096
else abort('initRandomDevice');
};
var randomFill = (view) => {
// Lazily init on the first invocation.
return (randomFill = initRandomFill())(view);
};
var PATH_FS = {
resolve: function () {
var resolvedPath = '',
resolvedAbsolute = false;
for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
var path = i >= 0 ? arguments[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).substr(1);
to = PATH_FS.resolve(to).substr(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 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]
* @returns {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 {
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;
};
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) => {
// 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;
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 FS_stdin_getChar = () => {
if (!FS_stdin_getChar_buffer.length) {
var result = null;
if (
typeof window != 'undefined' &&
typeof window.prompt == 'function'
) {
// Browser.
result = window.prompt('Input: '); // returns null on cancel
if (result !== null) {
result += '\n';
}
} else if (typeof readline == 'function') {
// Command line.
result = readline();
if (result !== null) {
result += '\n';
}
}
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.timestamp = 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.timestamp = 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, 0));
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 && tty.output.length > 0) {
out(UTF8ArrayToString(tty.output, 0));
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, 0));
tty.output = [];
} else {
if (val != 0) tty.output.push(val);
}
},
fsync(tty) {
if (tty.output && tty.output.length > 0) {
err(UTF8ArrayToString(tty.output, 0));
tty.output = [];
}
},
},
};
var zeroMemory = (address, size) => {
HEAPU8.fill(0, address, address + size);
return address;
};
var alignMemory = (size, alignment) => {
return Math.ceil(size / alignment) * alignment;
};
var mmapAlloc = (size) => {
size = alignMemory(size, 65536);
var ptr = _emscripten_builtin_memalign(65536, size);
if (!ptr) return 0;
return zeroMemory(ptr, size);
};
var MEMFS = {
ops_table: null,
mount(mount) {
return MEMFS.createNode(null, '/', 16384 | 511 /* 0777 */, 0);
},
createNode(parent, name, mode, dev) {
if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
// no supported
throw new FS.ErrnoError(63);
}
if (!MEMFS.ops_table) {
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,
allocate: MEMFS.stream_ops.allocate,
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