@duckdb/duckdb-wasm/dist/duckdb-browser-mvp.worker.js

DuckDB powered by WebAssembly

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init&&(runtimeInitialized?init():__ATINIT__.push(init)),moduleExports}if(flags.loadAsync){if(binary instanceof WebAssembly.Module){var instance=new WebAssembly.Instance(binary,info);return Promise.resolve(postInstantiation(binary,instance))}return WebAssembly.instantiate(binary,info).then(e=>postInstantiation(e.module,e.instance))}var module=binary instanceof WebAssembly.Module?binary:new WebAssembly.Module(binary),instance=new WebAssembly.Instance(module,info);return postInstantiation(module,instance)}return flags.loadAsync?metadata.neededDynlibs.reduce((e,t)=>e.then(()=>loadDynamicLibrary(t,flags,localScope)),Promise.resolve()).then(loadModule):(metadata.neededDynlibs.forEach(e=>loadDynamicLibrary(e,flags,localScope)),loadModule())},mergeLibSymbols=(e,t)=>{registerDynCallSymbols(e);for(var[r,n]of Object.entries(e))(o=>{isSymbolDefined(o)||(wasmImports[o]=n)})(r)},asyncLoad=(e,t,r,n)=>{var a=n?"":"al ".concat(e);readAsync(e).then(o=>{t(new 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t.global?a.global||(a.global=!0,mergeLibSymbols(a.exports,e)):(r&&Object.assign(r,a.exports),registerDynCallSymbols(a.exports)),t.nodelete&&a.refcount!==1/0&&(a.refcount=1/0),a.refcount++,n&&(LDSO.loadedLibsByHandle[n]=a),t.loadAsync?Promise.resolve(!0):!0;a=newDSO(e,n,"loading"),a.refcount=t.nodelete?1/0:1,a.global=t.global;function o(){if(n){var _=HEAPU32[n+28>>>2>>>0],d=HEAPU32[n+32>>>2>>>0];if(_&&d){var f=HEAP8.slice(_,_+d);return t.loadAsync?Promise.resolve(f):f}}var p=locateFile(e);if(t.loadAsync)return new Promise((m,h)=>asyncLoad(p,m,h));if(!readBinary)throw new Error("".concat(p,": file not found, and synchronous loading of external files is not available"));return readBinary(p)}function l(){var _=preloadedWasm[e];return _?t.loadAsync?Promise.resolve(_):_:t.loadAsync?o().then(d=>loadWebAssemblyModule(d,t,e,r,n)):loadWebAssemblyModule(o(),t,e,r,n)}function u(_){a.global?mergeLibSymbols(_,e):r&&(Object.assign(r,_),registerDynCallSymbols(_)),a.exports=_}return t.loadAsync?l().then(_=>(u(_),!0)):(u(l()),!0)}var reportUndefinedSymbols=()=>{for(var[e,t]of Object.entries(GOT))if(t.value==0){var r=resolveGlobalSymbol(e,!0).sym;if(!r&&!t.required)continue;if(typeof r=="function")t.value=addFunction(r,r.sig);else if(typeof r=="number")t.value=r;else throw new Error("bad export type for '".concat(e,"': ").concat(typeof r))}},loadDylibs=()=>{if(!dynamicLibraries.length){reportUndefinedSymbols();return}addRunDependency("loadDylibs"),dynamicLibraries.reduce((e,t)=>e.then(()=>loadDynamicLibrary(t,{loadAsync:!0,global:!0,nodelete:!0,allowUndefined:!0})),Promise.resolve()).then(()=>{reportUndefinedSymbols(),removeRunDependency("loadDylibs")})},noExitRuntime=Module.noExitRuntime||!0;function setValue(e,t,r="i8"){switch(r.endsWith("*")&&(r="*"),r){case"i1":HEAP8[e>>>0]=t;break;case"i8":HEAP8[e>>>0]=t;break;case"i16":HEAP16[e>>>1>>>0]=t;break;case"i32":HEAP32[e>>>2>>>0]=t;break;case"i64":abort("to do setValue(i64) use 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e=exceptionCaught[exceptionCaught.length-1];return ___cxa_increment_exception_refcount(e.excPtr),e.excPtr}___cxa_current_primary_exception.sig="p";var exceptionLast=0,___cxa_end_catch=()=>{_setThrew(0,0);var e=exceptionCaught.pop();___cxa_decrement_exception_refcount(e.excPtr),exceptionLast=0};___cxa_end_catch.sig="v";class ExceptionInfo{constructor(t){this.excPtr=t,this.ptr=t-24}set_type(t){HEAPU32[this.ptr+4>>>2>>>0]=t}get_type(){return HEAPU32[this.ptr+4>>>2>>>0]}set_destructor(t){HEAPU32[this.ptr+8>>>2>>>0]=t}get_destructor(){return HEAPU32[this.ptr+8>>>2>>>0]}set_caught(t){t=t?1:0,HEAP8[this.ptr+12>>>0]=t}get_caught(){return HEAP8[this.ptr+12>>>0]!=0}set_rethrown(t){t=t?1:0,HEAP8[this.ptr+13>>>0]=t}get_rethrown(){return HEAP8[this.ptr+13>>>0]!=0}init(t,r){this.set_adjusted_ptr(0),this.set_type(t),this.set_destructor(r)}set_adjusted_ptr(t){HEAPU32[this.ptr+16>>>2>>>0]=t}get_adjusted_ptr(){return HEAPU32[this.ptr+16>>>2>>>0]}}function ___resumeException(e){throw e>>>=0,exceptionLast||(exceptionLast=e),exceptionLast}___resumeException.sig="vp";var findMatchingCatch=e=>{var t=exceptionLast;if(!t)return setTempRet0(0),0;var r=new ExceptionInfo(t);r.set_adjusted_ptr(t);var n=r.get_type();if(!n)return setTempRet0(0),t;for(var a of e){if(a===0||a===n)break;var o=r.ptr+16;if(___cxa_can_catch(a,n,o))return setTempRet0(a),t}return setTempRet0(n),t};function ___cxa_find_matching_catch_2(){return findMatchingCatch([])}___cxa_find_matching_catch_2.sig="p";function ___cxa_find_matching_catch_3(e){return e>>>=0,findMatchingCatch([e])}___cxa_find_matching_catch_3.sig="pp";function ___cxa_find_matching_catch_4(e,t){return e>>>=0,t>>>=0,findMatchingCatch([e,t])}___cxa_find_matching_catch_4.sig="ppp";var ___cxa_rethrow=()=>{var e=exceptionCaught.pop();e||abort("no exception to throw");var t=e.excPtr;throw 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r=0,n=e.length-1;n>=0;n--){var a=e[n];a==="."?e.splice(n,1):a===".."?(e.splice(n,1),r++):r&&(e.splice(n,1),r--)}if(t)for(;r;r--)e.unshift("..");return e},normalize:e=>{var t=PATH.isAbs(e),r=e.substr(-1)==="/";return e=PATH.normalizeArray(e.split("/").filter(n=>!!n),!t).join("/"),!e&&!t&&(e="."),e&&r&&(e+="/"),(t?"/":"")+e},dirname:e=>{var t=PATH.splitPath(e),r=t[0],n=t[1];return!r&&!n?".":(n&&(n=n.substr(0,n.length-1)),r+n)},basename:e=>{if(e==="/")return"/";e=PATH.normalize(e),e=e.replace(/\/$/,"");var t=e.lastIndexOf("/");return t===-1?e:e.substr(t+1)},join:(...e)=>PATH.normalize(e.join("/")),join2:(e,t)=>PATH.normalize(e+"/"+t)},initRandomFill=()=>{if(typeof crypto=="object"&&typeof crypto.getRandomValues=="function")return n=>crypto.getRandomValues(n);if(ENVIRONMENT_IS_NODE)try{var e=xi("crypto"),t=e.randomFillSync;if(t)return n=>e.randomFillSync(n);var r=e.randomBytes;return n=>(n.set(r(n.byteLength)),n)}catch(n){}abort("initRandomDevice")},randomFill=e=>(randomFill=initRandomFill())(e),PATH_FS={resolve:(...e)=>{for(var t="",r=!1,n=e.length-1;n>=-1&&!r;n--){var a=n>=0?e[n]:FS.cwd();if(typeof a!="string")throw new TypeError("Arguments to path.resolve must be strings");if(!a)return"";t=a+"/"+t,r=PATH.isAbs(a)}return t=PATH.normalizeArray(t.split("/").filter(o=>!!o),!r).join("/"),(r?"/":"")+t||"."},relative:(e,t)=>{e=PATH_FS.resolve(e).substr(1),t=PATH_FS.resolve(t).substr(1);function r(d){for(var f=0;f<d.length&&d[f]==="";f++);for(var p=d.length-1;p>=0&&d[p]==="";p--);return f>p?[]:d.slice(f,p-f+1)}for(var n=r(e.split("/")),a=r(t.split("/")),o=Math.min(n.length,a.length),l=o,u=0;u<o;u++)if(n[u]!==a[u]){l=u;break}for(var _=[],u=l;u<n.length;u++)_.push("..");return _=_.concat(a.slice(l)),_.join("/")}},FS_stdin_getChar_buffer=[],lengthBytesUTF8=e=>{for(var t=0,r=0;r<e.length;++r){var 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MEMFS.createNode(null,"/",16895,0)},createNode(e,t,r,n){if(FS.isBlkdev(r)||FS.isFIFO(r))throw new FS.ErrnoError(63);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 a=FS.createNode(e,t,r,n);return FS.isDir(a.mode)?(a.node_ops=MEMFS.ops_table.dir.node,a.stream_ops=MEMFS.ops_table.dir.stream,a.contents={}):FS.isFile(a.mode)?(a.node_ops=MEMFS.ops_table.file.node,a.stream_ops=MEMFS.ops_table.file.stream,a.usedBytes=0,a.contents=null):FS.isLink(a.mode)?(a.node_ops=MEMFS.ops_table.link.node,a.stream_ops=MEMFS.ops_table.link.stream):FS.isChrdev(a.mode)&&(a.node_ops=MEMFS.ops_table.chrdev.node,a.stream_ops=MEMFS.ops_table.chrdev.stream),a.timestamp=Date.now(),e&&(e.contents[t]=a,e.timestamp=a.timestamp),a},getFileDataAsTypedArray(e){return e.contents?e.contents.subarray?e.contents.subarray(0,e.usedBytes):new Uint8Array(e.contents):new Uint8Array(0)},expandFileStorage(e,t){var r=e.contents?e.contents.length:0;if(!(r>=t)){var n=1024*1024;t=Math.max(t,r*(r<n?2:1.125)>>>0),r!=0&&(t=Math.max(t,256));var a=e.contents;e.contents=new Uint8Array(t),e.usedBytes>0&&e.contents.set(a.subarray(0,e.usedBytes),0)}},resizeFileStorage(e,t){if(e.usedBytes!=t)if(t==0)e.contents=null,e.usedBytes=0;else{var r=e.contents;e.contents=new Uint8Array(t),r&&e.contents.set(r.subarray(0,Math.min(t,e.usedBytes))),e.usedBytes=t}},node_ops:{getattr(e){var t={};return t.dev=FS.isChrdev(e.mode)?e.id:1,t.ino=e.id,t.mode=e.mode,t.nlink=1,t.uid=0,t.gid=0,t.rdev=e.rdev,FS.isDir(e.mode)?t.size=4096:FS.isFile(e.mode)?t.size=e.usedBytes:FS.isLink(e.mode)?t.size=e.link.length:t.size=0,t.atime=new Date(e.timestamp),t.mtime=new Date(e.timestamp),t.ctime=new Date(e.timestamp),t.blksize=4096,t.blocks=Math.ceil(t.size/t.blksize),t},setattr(e,t){t.mode!==void 0&&(e.mode=t.mode),t.timestamp!==void 0&&(e.timestamp=t.timestamp),t.size!==void 0&&MEMFS.resizeFileStorage(e,t.size)},lookup(e,t){throw FS.genericErrors[44]},mknod(e,t,r,n){return MEMFS.createNode(e,t,r,n)},rename(e,t,r){if(FS.isDir(e.mode)){var n;try{n=FS.lookupNode(t,r)}catch(o){}if(n)for(var a in n.contents)throw new FS.ErrnoError(55)}delete e.parent.contents[e.name],e.parent.timestamp=Date.now(),e.name=r,t.contents[r]=e,t.timestamp=e.parent.timestamp},unlink(e,t){delete e.contents[t],e.timestamp=Date.now()},rmdir(e,t){var r=FS.lookupNode(e,t);for(var n in r.contents)throw new FS.ErrnoError(55);delete e.contents[t],e.timestamp=Date.now()},readdir(e){var t=[".",".."];for(var r of Object.keys(e.contents))t.push(r);return t},symlink(e,t,r){var n=MEMFS.createNode(e,t,41471,0);return n.link=r,n},readlink(e){if(!FS.isLink(e.mode))throw new FS.ErrnoError(28);return e.link}},stream_ops:{read(e,t,r,n,a){var o=e.node.contents;if(a>=e.node.usedBytes)return 0;var l=Math.min(e.node.usedBytes-a,n);if(l>8&&o.subarray)t.set(o.subarray(a,a+l),r);else for(var u=0;u<l;u++)t[r+u]=o[a+u];return l},write(e,t,r,n,a,o){if(t.buffer===HEAP8.buffer&&(o=!1),!n)return 0;var l=e.node;if(l.timestamp=Date.now(),t.subarray&&(!l.contents||l.contents.subarray)){if(o)return l.contents=t.subarray(r,r+n),l.usedBytes=n,n;if(l.usedBytes===0&&a===0)return l.contents=t.slice(r,r+n),l.usedBytes=n,n;if(a+n<=l.usedBytes)return l.contents.set(t.subarray(r,r+n),a),n}if(MEMFS.expandFileStorage(l,a+n),l.contents.subarray&&t.subarray)l.contents.set(t.subarray(r,r+n),a);else for(var u=0;u<n;u++)l.contents[a+u]=t[r+u];return l.usedBytes=Math.max(l.usedBytes,a+n),n},llseek(e,t,r){var n=t;if(r===1?n+=e.position:r===2&&FS.isFile(e.node.mode)&&(n+=e.node.usedBytes),n<0)throw new FS.ErrnoError(28);return n},allocate(e,t,r){MEMFS.expandFileStorage(e.node,t+r),e.node.usedBytes=Math.max(e.node.usedBytes,t+r)},mmap(e,t,r,n,a){if(!FS.isFile(e.node.mode))throw new FS.ErrnoError(43);var o,l,u=e.node.contents;if(!(a&2)&&u&&u.buffer===HEAP8.buffer)l=!1,o=u.byteOffset;else{if(l=!0,o=mmapAlloc(t),!o)throw new FS.ErrnoError(48);u&&((r>0||r+t<u.length)&&(u.subarray?u=u.subarray(r,r+t):u=Array.prototype.slice.call(u,r,r+t)),HEAP8.set(u,o>>>0))}return{ptr:o,allocated:l}},msync(e,t,r,n,a){return MEMFS.stream_ops.write(e,t,0,n,r,!1),0}}},FS_createDataFile=(e,t,r,n,a,o)=>{FS.createDataFile(e,t,r,n,a,o)},FS_handledByPreloadPlugin=(e,t,r,n)=>{typeof Browser<"u"&&Browser.init();var a=!1;return preloadPlugins.forEach(o=>{a||o.canHandle(t)&&(o.handle(e,t,r,n),a=!0)}),a},FS_createPreloadedFile=(e,t,r,n,a,o,l,u,_,d)=>{var f=t?PATH_FS.resolve(PATH.join2(e,t)):e,p="cp ".concat(f);function m(h){function g(v){d==null||d(),u||FS_createDataFile(e,t,v,n,a,_),o==null||o(),removeRunDependency(p)}FS_handledByPreloadPlugin(h,f,g,()=>{l==null||l(),removeRunDependency(p)})||g(h)}addRunDependency(p),typeof r=="string"?asyncLoad(r,m,l):m(r)},FS_modeStringToFlags=e=>{var t={r:0,"r+":2,w:577,"w+":578,a:1089,"a+":1090},r=t[e];if(typeof r>"u")throw new Error("Unknown file open mode: ".concat(e));return r},FS_getMode=(e,t)=>{var r=0;return e&&(r|=365),t&&(r|=146),r},FS={root:null,mounts:[],devices:{},streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:!1,ignorePermissions:!0,ErrnoError:class{constructor(e){Qe(this,"name","ErrnoError");this.errno=e}},genericErrors:{},filesystems:null,syncFSRequests:0,readFiles:{},FSStream:class{constructor(){Qe(this,"shared",{})}get object(){return this.node}set object(e){this.node=e}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(e){this.shared.flags=e}get position(){return this.shared.position}set position(e){this.shared.position=e}},FSNode:class{constructor(e,t,r,n){Qe(this,"node_ops",{});Qe(this,"stream_ops",{});Qe(this,"readMode",365);Qe(this,"writeMode",146);Qe(this,"mounted",null);e||(e=this),this.parent=e,this.mount=e.mount,this.id=FS.nextInode++,this.name=t,this.mode=r,this.rdev=n}get read(){return(this.mode&this.readMode)===this.readMode}set read(e){e?this.mode|=this.readMode:this.mode&=~this.readMode}get write(){return(this.mode&this.writeMode)===this.writeMode}set write(e){e?this.mode|=this.writeMode:this.mode&=~this.writeMode}get isFolder(){return FS.isDir(this.mode)}get isDevice(){return FS.isChrdev(this.mode)}},lookupPath(e,t={}){if(e=PATH_FS.resolve(e),!e)return{path:"",node:null};var r={follow_mount:!0,recurse_count:0};if(t=Object.assign(r,t),t.recurse_count>8)throw new FS.ErrnoError(32);for(var n=e.split("/").filter(p=>!!p),a=FS.root,o="/",l=0;l<n.length;l++){var u=l===n.length-1;if(u&&t.parent)break;if(a=FS.lookupNode(a,n[l]),o=PATH.join2(o,n[l]),FS.isMountpoint(a)&&(!u||u&&t.follow_mount)&&(a=a.mounted.root),!u||t.follow)for(var _=0;FS.isLink(a.mode);){var d=FS.readlink(o);o=PATH_FS.resolve(PATH.dirname(o),d);var f=FS.lookupPath(o,{recurse_count:t.recurse_count+1});if(a=f.node,_++>40)throw new FS.ErrnoError(32)}}return{path:o,node:a}},getPath(e){for(var t;;){if(FS.isRoot(e)){var r=e.mount.mountpoint;return t?r[r.length-1]!=="/"?"".concat(r,"/").concat(t):r+t:r}t=t?"".concat(e.name,"/").concat(t):e.name,e=e.parent}},hashName(e,t){for(var r=0,n=0;n<t.length;n++)r=(r<<5)-r+t.charCodeAt(n)|0;return(e+r>>>0)%FS.nameTable.length},hashAddNode(e){var t=FS.hashName(e.parent.id,e.name);e.name_next=FS.nameTable[t],FS.nameTable[t]=e},hashRemoveNode(e){var t=FS.hashName(e.parent.id,e.name);if(FS.nameTable[t]===e)FS.nameTable[t]=e.name_next;else for(var r=FS.nameTable[t];r;){if(r.name_next===e){r.name_next=e.name_next;break}r=r.name_next}},lookupNode(e,t){var r=FS.mayLookup(e);if(r)throw new FS.ErrnoError(r);for(var n=FS.hashName(e.id,t),a=FS.nameTable[n];a;a=a.name_next){var o=a.name;if(a.parent.id===e.id&&o===t)return a}return FS.lookup(e,t)},createNode(e,t,r,n){var a=new FS.FSNode(e,t,r,n);return FS.hashAddNode(a),a},destroyNode(e){FS.hashRemoveNode(e)},isRoot(e){return e===e.parent},isMountpoint(e){return!!e.mounted},isFile(e){return(e&61440)===32768},isDir(e){return(e&61440)===16384},isLink(e){return(e&61440)===40960},isChrdev(e){return(e&61440)===8192},isBlkdev(e){return(e&61440)===24576},isFIFO(e){return(e&61440)===4096},isSocket(e){return(e&49152)===49152},flagsToPermissionString(e){var t=["r","w","rw"][e&3];return e&512&&(t+="w"),t},nodePermissions(e,t){return FS.ignorePermissions?0:t.includes("r")&&!(e.mode&292)||t.includes("w")&&!(e.mode&146)||t.includes("x")&&!(e.mode&73)?2:0},mayLookup(e){if(!FS.isDir(e.mode))return 54;var t=FS.nodePermissions(e,"x");return t||(e.node_ops.lookup?0:2)},mayCreate(e,t){try{var r=FS.lookupNode(e,t);return 20}catch(n){}return FS.nodePermissions(e,"wx")},mayDelete(e,t,r){var n;try{n=FS.lookupNode(e,t)}catch(o){return o.errno}var a=FS.nodePermissions(e,"wx");if(a)return a;if(r){if(!FS.isDir(n.mode))return 54;if(FS.isRoot(n)||FS.getPath(n)===FS.cwd())return 10}else if(FS.isDir(n.mode))return 31;return 0},mayOpen(e,t){return e?FS.isLink(e.mode)?32:FS.isDir(e.mode)&&(FS.flagsToPermissionString(t)!=="r"||t&512)?31:FS.nodePermissions(e,FS.flagsToPermissionString(t)):44},MAX_OPEN_FDS:4096,nextfd(){for(var e=0;e<=FS.MAX_OPEN_FDS;e++)if(!FS.streams[e])return e;throw new FS.ErrnoError(33)},getStreamChecked(e){var t=FS.getStream(e);if(!t)throw new FS.ErrnoError(8);return t},getStream:e=>FS.streams[e],createStream(e,t=-1){return e=Object.assign(new FS.FSStream,e),t==-1&&(t=FS.nextfd()),e.fd=t,FS.streams[t]=e,e},closeStream(e){FS.streams[e]=null},dupStream(e,t=-1){var n,a;var r=FS.createStream(e,t);return(a=(n=r.stream_ops)==null?void 0:n.dup)==null||a.call(n,r),r},chrdev_stream_ops:{open(e){var r,n;var t=FS.getDevice(e.node.rdev);e.stream_ops=t.stream_ops,(n=(r=e.stream_ops).open)==null||n.call(r,e)},llseek(){throw new FS.ErrnoError(70)}},major:e=>e>>8,minor:e=>e&255,makedev:(e,t)=>e<<8|t,registerDevice(e,t){FS.devices[e]={stream_ops:t}},getDevice:e=>FS.devices[e],getMounts(e){for(var t=[],r=[e];r.length;){var n=r.pop();t.push(n),r.push(...n.mounts)}return t},syncfs(e,t){typeof e=="function"&&(t=e,e=!1),FS.syncFSRequests++,FS.syncFSRequests>1&&err("warning: ".concat(FS.syncFSRequests," FS.syncfs operations in flight at once, probably just doing extra work"));var r=FS.getMounts(FS.root.mount),n=0;function a(l){return FS.syncFSRequests--,t(l)}function o(l){if(l)return o.errored?void 0:(o.errored=!0,a(l));++n>=r.length&&a(null)}r.forEach(l=>{if(!l.type.syncfs)return o(null);l.type.syncfs(l,e,o)})},mount(e,t,r){var n=r==="/",a=!r,o;if(n&&FS.root)throw new FS.ErrnoError(10);if(!n&&!a){var l=FS.lookupPath(r,{follow_mount:!1});if(r=l.path,o=l.node,FS.isMountpoint(o))throw new FS.ErrnoError(10);if(!FS.isDir(o.mode))throw new FS.ErrnoError(54)}var u={type:e,opts:t,mountpoint:r,mounts:[]},_=e.mount(u);return _.mount=u,u.root=_,n?FS.root=_:o&&(o.mounted=u,o.mount&&o.mount.mounts.push(u)),_},unmount(e){var t=FS.lookupPath(e,{follow_mount:!1});if(!FS.isMountpoint(t.node))throw new FS.ErrnoError(28);var r=t.node,n=r.mounted,a=FS.getMounts(n);Object.keys(FS.nameTable).forEach(l=>{for(var u=FS.nameTable[l];u;){var _=u.name_next;a.includes(u.mount)&&FS.destroyNode(u),u=_}}),r.mounted=null;var o=r.mount.mounts.indexOf(n);r.mount.mounts.splice(o,1)},lookup(e,t){return e.node_ops.lookup(e,t)},mknod(e,t,r){var n=FS.lookupPath(e,{parent:!0}),a=n.node,o=PATH.basename(e);if(!o||o==="."||o==="..")throw new FS.ErrnoError(28);var l=FS.mayCreate(a,o);if(l)throw new FS.ErrnoError(l);if(!a.node_ops.mknod)throw new FS.ErrnoError(63);return a.node_ops.mknod(a,o,t,r)},create(e,t){return t=t!==void 0?t:438,t&=4095,t|=32768,FS.mknod(e,t,0)},mkdir(e,t){return t=t!==void 0?t:511,t&=1023,t|=16384,FS.mknod(e,t,0)},mkdirTree(e,t){for(var r=e.split("/"),n="",a=0;a<r.length;++a)if(r[a]){n+="/"+r[a];try{FS.mkdir(n,t)}catch(o){if(o.errno!=20)throw o}}},mkdev(e,t,r){return typeof r>"u"&&(r=t,t=438),t|=8192,FS.mknod(e,t,r)},symlink(e,t){if(!PATH_FS.resolve(e))throw new FS.ErrnoError(44);var r=FS.lookupPath(t,{parent:!0}),n=r.node;if(!n)throw new FS.ErrnoError(44);var a=PATH.basename(t),o=FS.mayCreate(n,a);if(o)throw new FS.ErrnoError(o);if(!n.node_ops.symlink)throw new FS.ErrnoError(63);return n.node_ops.symlink(n,a,e)},rename(e,t){var r=PATH.dirname(e),n=PATH.dirname(t),a=PATH.basename(e),o=PATH.basename(t),l,u,_;if(l=FS.lookupPath(e,{parent:!0}),u=l.node,l=FS.lookupPath(t,{parent:!0}),_=l.node,!u||!_)throw new FS.ErrnoError(44);if(u.mount!==_.mount)throw new FS.ErrnoError(75);var d=FS.lookupNode(u,a),f=PATH_FS.relative(e,n);if(f.charAt(0)!==".")throw new FS.ErrnoError(28);if(f=PATH_FS.relative(t,r),f.charAt(0)!==".")throw new FS.ErrnoError(55);var p;try{p=FS.lookupNode(_,o)}catch(g){}if(d!==p){var m=FS.isDir(d.mode),h=FS.mayDelete(u,a,m);if(h)throw new FS.ErrnoError(h);if(h=p?FS.mayDelete(_,o,m):FS.mayCreate(_,o),h)throw new FS.ErrnoError(h);if(!u.node_ops.rename)throw new FS.ErrnoError(63);if(FS.isMountpoint(d)||p&&FS.isMountpoint(p))throw new FS.ErrnoError(10);if(_!==u&&(h=FS.nodePermissions(u,"w"),h))throw new FS.ErrnoError(h);FS.hashRemoveNode(d);try{u.node_ops.rename(d,_,o),d.parent=_}catch(g){throw g}finally{FS.hashAddNode(d)}}},rmdir(e){var t=FS.lookupPath(e,{parent:!0}),r=t.node,n=PATH.basename(e),a=FS.lookupNode(r,n),o=FS.mayDelete(r,n,!0);if(o)throw new FS.ErrnoError(o);if(!r.node_ops.rmdir)throw new FS.ErrnoError(63);if(FS.isMountpoint(a))throw new FS.ErrnoError(10);r.node_ops.rmdir(r,n),FS.destroyNode(a)},readdir(e){var t=FS.lookupPath(e,{follow:!0}),r=t.node;if(!r.node_ops.readdir)throw new FS.ErrnoError(54);return r.node_ops.readdir(r)},unlink(e){var t=FS.lookupPath(e,{parent:!0}),r=t.node;if(!r)throw new FS.ErrnoError(44);var n=PATH.basename(e),a=FS.lookupNode(r,n),o=FS.mayDelete(r,n,!1);if(o)throw new FS.ErrnoError(o);if(!r.node_ops.unlink)throw new FS.ErrnoError(63);if(FS.isMountpoint(a))throw new FS.ErrnoError(10);r.node_ops.unlink(r,n),FS.destroyNode(a)},readlink(e){var t=FS.lookupPath(e),r=t.node;if(!r)throw new FS.ErrnoError(44);if(!r.node_ops.readlink)throw new FS.ErrnoError(28);return PATH_FS.resolve(FS.getPath(r.parent),r.node_ops.readlink(r))},stat(e,t){var r=FS.lookupPath(e,{follow:!t}),n=r.node;if(!n)throw new FS.ErrnoError(44);if(!n.node_ops.getattr)throw new FS.ErrnoError(63);return n.node_ops.getattr(n)},lstat(e){return FS.stat(e,!0)},chmod(e,t,r){var n;if(typeof e=="string"){var a=FS.lookupPath(e,{follow:!r});n=a.node}else n=e;if(!n.node_ops.setattr)throw new FS.ErrnoError(63);n.node_ops.setattr(n,{mode:t&4095|n.mode&-4096,timestamp:Date.now()})},lchmod(e,t){FS.chmod(e,t,!0)},fchmod(e,t){var r=FS.getStreamChecked(e);FS.chmod(r.node,t)},chown(e,t,r,n){var a;if(typeof e=="string"){var o=FS.lookupPath(e,{follow:!n});a=o.node}else a=e;if(!a.node_ops.setattr)throw new FS.ErrnoError(63);a.node_ops.setattr(a,{timestamp:Date.now()})},lchown(e,t,r){FS.chown(e,t,r,!0)},fchown(e,t,r){var n=FS.getStreamChecked(e);FS.chown(n.node,t,r)},truncate(e,t){if(t<0)throw new FS.ErrnoError(28);var r;if(typeof e=="string"){var n=FS.lookupPath(e,{follow:!0});r=n.node}else r=e;if(!r.node_ops.setattr)throw new FS.ErrnoError(63);if(FS.isDir(r.mode))throw new FS.ErrnoError(31);if(!FS.isFile(r.mode))throw new FS.ErrnoError(28);var a=FS.nodePermissions(r,"w");if(a)throw new FS.ErrnoError(a);r.node_ops.setattr(r,{size:t,