/*
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this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0

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MERCHANTABLITY OR NON-INFRINGEMENT.

See the Apache Version 2.0 License for specific language governing permissions
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**************************************************************************** https://mths.be/punycode v1.4.1 by @mathias */
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1).toString(36).substr(2,6);return 6===a.length?a:this.genRndStr()};a.prototype.getLink=function(a){return this.root.walk(a)};a.prototype.getLinkOrThrow=function(a,b){var c=v(a);c=this.getLink(c);if(!c)throw h("ENOENT",b,a);return c};a.prototype.getResolvedLink=function(a){a="string"===typeof a?v(a):a;for(var b=this.root,c=0;c<a.length;){b=b.getChild(a[c]);if(!b)return null;var d=b.getNode();d.isSymlink()?(a=d.symlink.concat(a.slice(c+1)),b=this.root,c=0):c++}return b};a.prototype.getResolvedLinkOrThrow=
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function(a,b,c){void 0===c&&(c=!0);if(this.openFiles>=this.maxFiles)throw h("EMFILE","open",a.getPath());var d=a;c&&(d=this.resolveSymlinks(a));if(!d)throw h("ENOENT","open",a.getPath());c=d.getNode();if(c.isDirectory()){if((b&(mb|na|Ka))!==mb)throw h("EISDIR","open",a.getPath());}else if(b&gf)throw h("ENOTDIR","open",a.getPath());if(!(b&Ka||c.canRead()))throw h("EACCES","open",a.getPath());a=new this.props.File(a,c,b,this.newFdNumber());this.fds[a.fd]=a;this.openFiles++;b&Za&&a.truncate();return a};
a.prototype.openFile=function(a,b,c,d){void 0===d&&(d=!0);var e=v(a),r=d?this.getResolvedLink(e):this.getLink(e);if(!r&&b&U){var D=this.getResolvedLink(e.slice(0,e.length-1));if(!D)throw h("ENOENT","open",S+e.join(S));b&U&&"number"===typeof c&&(r=this.createLink(D,e[e.length-1],!1,c))}if(r)return this.openLink(r,b,d);throw h("ENOENT","open",a);};a.prototype.openBase=function(a,b,c,d){void 0===d&&(d=!0);b=this.openFile(a,b,c,d);if(!b)throw h("ENOENT","open",a);return b.fd};a.prototype.openSync=function(a,
b,c){void 0===c&&(c=438);c=M(c);a=m(a);b=k(b);return this.openBase(a,b,c)};a.prototype.open=function(a,b,c,d){var e=c;"function"===typeof c&&(e=438,d=c);c=M(e||438);a=m(a);b=k(b);this.wrapAsync(this.openBase,[a,b,c],d)};a.prototype.closeFile=function(a){this.fds[a.fd]&&(this.openFiles--,delete this.fds[a.fd],this.releasedFds.push(a.fd))};a.prototype.closeSync=function(a){Ya(a);a=this.getFileByFdOrThrow(a,"close");this.closeFile(a)};a.prototype.close=function(a,b){Ya(a);this.wrapAsync(this.closeSync,
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b,c,d){var e="number"===typeof a;a=e?a:this.openBase(m(a),c,d);d=0;var r=b.length;c=c&$a?void 0:0;try{for(;0<r;){var D=this.writeSync(a,b,d,r,c);d+=D;r-=D;void 0!==c&&(c+=D)}}finally{e||this.closeSync(a)}};a.prototype.writeFileSync=function(a,b,c){var d=Bd(c);c=k(d.flag);var e=M(d.mode);b=La(b,d.encoding);this.writeFileBase(a,b,c,e)};a.prototype.writeFile=function(a,b,c,d){var e=c;"function"===typeof c&&(e=Ad,d=c);c=q(d);var r=Bd(e);e=k(r.flag);d=M(r.mode);b=La(b,r.encoding);this.wrapAsync(this.writeFileBase,
[a,b,e,d],c)};a.prototype.linkBase=function(a,b){var c=v(a),d=this.getLink(c);if(!d)throw h("ENOENT","link",a,b);var e=v(b);c=this.getLinkParent(e);if(!c)throw h("ENOENT","link",a,b);e=e[e.length-1];if(c.getChild(e))throw h("EEXIST","link",a,b);a=d.getNode();a.nlink++;c.createChild(e,a)};a.prototype.copyFileBase=function(a,b,c){var d=this.readFileSync(a);if(c&hf&&this.existsSync(b))throw h("EEXIST","copyFile",a,b);if(c&jf)throw h("ENOSYS","copyFile",a,b);this.writeFileBase(b,d,ua.w,438)};a.prototype.copyFileSync=
function(a,b,c){a=m(a);b=m(b);return this.copyFileBase(a,b,(c||0)|0)};a.prototype.copyFile=function(a,b,c,d){a=m(a);b=m(b);if("function"===typeof c)var e=0;else e=c,c=d;q(c);this.wrapAsync(this.copyFileBase,[a,b,e],c)};a.prototype.linkSync=function(a,b){a=m(a);b=m(b);this.linkBase(a,b)};a.prototype.link=function(a,b,c){a=m(a);b=m(b);this.wrapAsync(this.linkBase,[a,b],c)};a.prototype.unlinkBase=function(a){var b=v(a);b=this.getLink(b);if(!b)throw h("ENOENT","unlink",a);if(b.length)throw Error("Dir not empty...");
this.deleteLink(b);a=b.getNode();a.nlink--;0>=a.nlink&&this.deleteNode(a)};a.prototype.unlinkSync=function(a){a=m(a);this.unlinkBase(a)};a.prototype.unlink=function(a,b){a=m(a);this.wrapAsync(this.unlinkBase,[a],b)};a.prototype.symlinkBase=function(a,b){var c=v(b),d=this.getLinkParent(c);if(!d)throw h("ENOENT","symlink",a,b);c=c[c.length-1];if(d.getChild(c))throw h("EEXIST","symlink",a,b);b=d.createChild(c);b.getNode().makeSymlink(v(a));return b};a.prototype.symlinkSync=function(a,b){a=m(a);b=m(b);
this.symlinkBase(a,b)};a.prototype.symlink=function(a,b,c,d){c=q("function"===typeof c?c:d);a=m(a);b=m(b);this.wrapAsync(this.symlinkBase,[a,b],c)};a.prototype.realpathBase=function(a,b){var c=v(a);c=this.getResolvedLink(c);if(!c)throw h("ENOENT","realpath",a);return K.strToEncoding(c.getPath(),b)};a.prototype.realpathSync=function(a,b){return this.realpathBase(m(a),Ed(b).encoding)};a.prototype.realpath=function(a,b,c){c=lf(b,c);b=c[0];c=c[1];a=m(a);this.wrapAsync(this.realpathBase,[a,b.encoding],
c)};a.prototype.lstatBase=function(a,b){void 0===b&&(b=!1);var c=this.getLink(v(a));if(!c)throw h("ENOENT","lstat",a);return ka.default.build(c.getNode(),b)};a.prototype.lstatSync=function(a,b){return this.lstatBase(m(a),e(b).bigint)};a.prototype.lstat=function(a,b,c){c=d(b,c);b=c[0];c=c[1];this.wrapAsync(this.lstatBase,[m(a),b.bigint],c)};a.prototype.statBase=function(a,b){void 0===b&&(b=!1);var c=this.getResolvedLink(v(a));if(!c)throw h("ENOENT","stat",a);return ka.default.build(c.getNode(),b)};
a.prototype.statSync=function(a,b){return this.statBase(m(a),e(b).bigint)};a.prototype.stat=function(a,b,c){c=d(b,c);b=c[0];c=c[1];this.wrapAsync(this.statBase,[m(a),b.bigint],c)};a.prototype.fstatBase=function(a,b){void 0===b&&(b=!1);a=this.getFileByFd(a);if(!a)throw h("EBADF","fstat");return ka.default.build(a.node,b)};a.prototype.fstatSync=function(a,b){return this.fstatBase(a,e(b).bigint)};a.prototype.fstat=function(a,b,c){b=d(b,c);this.wrapAsync(this.fstatBase,[a,b[0].bigint],b[1])};a.prototype.renameBase=
function(a,b){var c=this.getLink(v(a));if(!c)throw h("ENOENT","rename",a,b);var d=v(b),e=this.getLinkParent(d);if(!e)throw h("ENOENT","rename",a,b);(a=c.parent)&&a.deleteChild(c);c.steps=Xb(e.steps,[d[d.length-1]]);e.setChild(c.getName(),c)};a.prototype.renameSync=function(a,b){a=m(a);b=m(b);this.renameBase(a,b)};a.prototype.rename=function(a,b,c){a=m(a);b=m(b);this.wrapAsync(this.renameBase,[a,b],c)};a.prototype.existsBase=function(a){return!!this.statBase(a)};a.prototype.existsSync=function(a){try{return this.existsBase(m(a))}catch(D){return!1}};
a.prototype.exists=function(a,b){var c=this,d=m(a);if("function"!==typeof b)throw Error(fa.CB);$c.default(function(){try{b(c.existsBase(d))}catch(va){b(!1)}})};a.prototype.accessBase=function(a){this.getLinkOrThrow(a,"access")};a.prototype.accessSync=function(a,b){void 0===b&&(b=wd);a=m(a);this.accessBase(a,b|0)};a.prototype.access=function(a,b,c){var d=wd;"function"!==typeof b&&(d=b|0,b=q(c));a=m(a);this.wrapAsync(this.accessBase,[a,d],b)};a.prototype.appendFileSync=function(a,b,c){void 0===c&&(c=
Cd);c=Dd(c);c.flag&&a>>>0!==a||(c.flag="a");this.writeFileSync(a,b,c)};a.prototype.appendFile=function(a,b,c,d){d=kf(c,d);c=d[0];d=d[1];c.flag&&a>>>0!==a||(c.flag="a");this.writeFile(a,b,c,d)};a.prototype.readdirBase=function(a,b){var c=v(a);c=this.getResolvedLink(c);if(!c)throw h("ENOENT","readdir",a);if(!c.getNode().isDirectory())throw h("ENOTDIR","scandir",a);if(b.withFileTypes){var d=[];for(e in c.children)(a=c.getChild(e))&&d.push(Qc.default.build(a,b.encoding));Yb||"buffer"===b.encoding||d.sort(function(a,
b){return a.name<b.name?-1:a.name>b.name?1:0});return d}var e=[];for(d in c.children)e.push(K.strToEncoding(d,b.encoding));Yb||"buffer"===b.encoding||e.sort();return e};a.prototype.readdirSync=function(a,b){b=Gd(b);a=m(a);return this.readdirBase(a,b)};a.prototype.readdir=function(a,b,c){c=mf(b,c);b=c[0];c=c[1];a=m(a);this.wrapAsync(this.readdirBase,[a,b],c)};a.prototype.readlinkBase=function(a,b){var c=this.getLinkOrThrow(a,"readlink").getNode();if(!c.isSymlink())throw h("EINVAL","readlink",a);a=
S+c.symlink.join(S);return K.strToEncoding(a,b)};a.prototype.readlinkSync=function(a,b){b=ob(b);a=m(a);return this.readlinkBase(a,b.encoding)};a.prototype.readlink=function(a,b,c){c=yd(b,c);b=c[0];c=c[1];a=m(a);this.wrapAsync(this.readlinkBase,[a,b.encoding],c)};a.prototype.fsyncBase=function(a){this.getFileByFdOrThrow(a,"fsync")};a.prototype.fsyncSync=function(a){this.fsyncBase(a)};a.prototype.fsync=function(a,b){this.wrapAsync(this.fsyncBase,[a],b)};a.prototype.fdatasyncBase=function(a){this.getFileByFdOrThrow(a,
"fdatasync")};a.prototype.fdatasyncSync=function(a){this.fdatasyncBase(a)};a.prototype.fdatasync=function(a,b){this.wrapAsync(this.fdatasyncBase,[a],b)};a.prototype.ftruncateBase=function(a,b){this.getFileByFdOrThrow(a,"ftruncate").truncate(b)};a.prototype.ftruncateSync=function(a,b){this.ftruncateBase(a,b)};a.prototype.ftruncate=function(a,b,c){var d="number"===typeof b?b:0;b=q("number"===typeof b?c:b);this.wrapAsync(this.ftruncateBase,[a,d],b)};a.prototype.truncateBase=function(a,b){a=this.openSync(a,
"r+");try{this.ftruncateSync(a,b)}finally{this.closeSync(a)}};a.prototype.truncateSync=function(a,b){if(a>>>0===a)return this.ftruncateSync(a,b);this.truncateBase(a,b)};a.prototype.truncate=function(a,b,c){var d="number"===typeof b?b:0;b=q("number"===typeof b?c:b);if(a>>>0===a)return this.ftruncate(a,d,b);this.wrapAsync(this.truncateBase,[a,d],b)};a.prototype.futimesBase=function(a,b,c){a=this.getFileByFdOrThrow(a,"futimes").node;a.atime=new Date(1E3*b);a.mtime=new Date(1E3*c)};a.prototype.futimesSync=
function(a,b,c){this.futimesBase(a,ha(b),ha(c))};a.prototype.futimes=function(a,b,c,d){this.wrapAsync(this.futimesBase,[a,ha(b),ha(c)],d)};a.prototype.utimesBase=function(a,b,c){a=this.openSync(a,"r+");try{this.futimesBase(a,b,c)}finally{this.closeSync(a)}};a.prototype.utimesSync=function(a,b,c){this.utimesBase(m(a),ha(b),ha(c))};a.prototype.utimes=function(a,b,c,d){this.wrapAsync(this.utimesBase,[m(a),ha(b),ha(c)],d)};a.prototype.mkdirBase=function(a,b){var c=v(a);if(!c.length)throw h("EISDIR","mkdir",
a);var d=this.getLinkParentAsDirOrThrow(a,"mkdir");c=c[c.length-1];if(d.getChild(c))throw h("EEXIST","mkdir",a);d.createChild(c,this.createNode(!0,b))};a.prototype.mkdirpBase=function(a,b){a=v(a);for(var c=this.root,d=0;d<a.length;d++){var e=a[d];if(!c.getNode().isDirectory())throw h("ENOTDIR","mkdir",c.getPath());var f=c.getChild(e);if(f)if(f.getNode().isDirectory())c=f;else throw h("ENOTDIR","mkdir",f.getPath());else c=c.createChild(e,this.createNode(!0,b))}};a.prototype.mkdirSync=function(a,b){b=
f(b);var c=M(b.mode,511);a=m(a);b.recursive?this.mkdirpBase(a,c):this.mkdirBase(a,c)};a.prototype.mkdir=function(a,b,c){var d=f(b);b=q("function"===typeof b?b:c);c=M(d.mode,511);a=m(a);d.recursive?this.wrapAsync(this.mkdirpBase,[a,c],b):this.wrapAsync(this.mkdirBase,[a,c],b)};a.prototype.mkdirpSync=function(a,b){this.mkdirSync(a,{mode:b,recursive:!0})};a.prototype.mkdirp=function(a,b,c){var d="function"===typeof b?void 0:b;b=q("function"===typeof b?b:c);this.mkdir(a,{mode:d,recursive:!0},b)};a.prototype.mkdtempBase=
function(a,b,c){void 0===c&&(c=5);var d=a+this.genRndStr();try{return this.mkdirBase(d,511),K.strToEncoding(d,b)}catch(va){if("EEXIST"===va.code){if(1<c)return this.mkdtempBase(a,b,c-1);throw Error("Could not create temp dir.");}throw va;}};a.prototype.mkdtempSync=function(a,b){b=ob(b).encoding;if(!a||"string"!==typeof a)throw new TypeError("filename prefix is required");qb(a);return this.mkdtempBase(a,b)};a.prototype.mkdtemp=function(a,b,c){c=yd(b,c);b=c[0].encoding;c=c[1];if(!a||"string"!==typeof a)throw new TypeError("filename prefix is required");
qb(a)&&this.wrapAsync(this.mkdtempBase,[a,b],c)};a.prototype.rmdirBase=function(a,b){b=aa({},Fd,b);var c=this.getLinkAsDirOrThrow(a,"rmdir");if(c.length&&!b.recursive)throw h("ENOTEMPTY","rmdir",a);this.deleteLink(c)};a.prototype.rmdirSync=function(a,b){this.rmdirBase(m(a),b)};a.prototype.rmdir=function(a,b,c){var d=aa({},Fd,b);b=q("function"===typeof b?b:c);this.wrapAsync(this.rmdirBase,[m(a),d],b)};a.prototype.fchmodBase=function(a,b){this.getFileByFdOrThrow(a,"fchmod").chmod(b)};a.prototype.fchmodSync=
function(a,b){this.fchmodBase(a,M(b))};a.prototype.fchmod=function(a,b,c){this.wrapAsync(this.fchmodBase,[a,M(b)],c)};a.prototype.chmodBase=function(a,b){a=this.openSync(a,"r+");try{this.fchmodBase(a,b)}finally{this.closeSync(a)}};a.prototype.chmodSync=function(a,b){b=M(b);a=m(a);this.chmodBase(a,b)};a.prototype.chmod=function(a,b,c){b=M(b);a=m(a);this.wrapAsync(this.chmodBase,[a,b],c)};a.prototype.lchmodBase=function(a,b){a=this.openBase(a,na,0,!1);try{this.fchmodBase(a,b)}finally{this.closeSync(a)}};
a.prototype.lchmodSync=function(a,b){b=M(b);a=m(a);this.lchmodBase(a,b)};a.prototype.lchmod=function(a,b,c){b=M(b);a=m(a);this.wrapAsync(this.lchmodBase,[a,b],c)};a.prototype.fchownBase=function(a,b,c){this.getFileByFdOrThrow(a,"fchown").chown(b,c)};a.prototype.fchownSync=function(a,b,c){Ha(b);Ia(c);this.fchownBase(a,b,c)};a.prototype.fchown=function(a,b,c,d){Ha(b);Ia(c);this.wrapAsync(this.fchownBase,[a,b,c],d)};a.prototype.chownBase=function(a,b,c){this.getResolvedLinkOrThrow(a,"chown").getNode().chown(b,
c)};a.prototype.chownSync=function(a,b,c){Ha(b);Ia(c);this.chownBase(m(a),b,c)};a.prototype.chown=function(a,b,c,d){Ha(b);Ia(c);this.wrapAsync(this.chownBase,[m(a),b,c],d)};a.prototype.lchownBase=function(a,b,c){this.getLinkOrThrow(a,"lchown").getNode().chown(b,c)};a.prototype.lchownSync=function(a,b,c){Ha(b);Ia(c);this.lchownBase(m(a),b,c)};a.prototype.lchown=function(a,b,c,d){Ha(b);Ia(c);this.wrapAsync(this.lchownBase,[m(a),b,c],d)};a.prototype.watchFile=function(a,b,c){a=m(a);var d=b;"function"===
typeof d&&(c=b,d=null);if("function"!==typeof c)throw Error('"watchFile()" requires a listener function');b=5007;var e=!0;d&&"object"===typeof d&&("number"===typeof d.interval&&(b=d.interval),"boolean"===typeof d.persistent&&(e=d.persistent));d=this.statWatchers[a];d||(d=new this.StatWatcher,d.start(a,e,b),this.statWatchers[a]=d);d.addListener("change",c);return d};a.prototype.unwatchFile=function(a,b){a=m(a);var c=this.statWatchers[a];c&&("function"===typeof b?c.removeListener("change",b):c.removeAllListeners("change"),
0===c.listenerCount("change")&&(c.stop(),delete this.statWatchers[a]))};a.prototype.createReadStream=function(a,b){return new this.ReadStream(a,b)};a.prototype.createWriteStream=function(a,b){return new this.WriteStream(a,b)};a.prototype.watch=function(a,b,c){a=m(a);var d=b;"function"===typeof b&&(c=b,d=null);var e=ob(d);b=e.persistent;d=e.recursive;e=e.encoding;void 0===b&&(b=!0);void 0===d&&(d=!1);var f=new this.FSWatcher;f.start(a,b,d,e);c&&f.addListener("change",c);return f};a.fd=2147483647;return a}();
b.Volume=a;var Hd=function(a){function b(b){var c=a.call(this)||this;c.onInterval=function(){try{var a=c.vol.statSync(c.filename);c.hasChanged(a)&&(c.emit("change",a,c.prev),c.prev=a)}finally{c.loop()}};c.vol=b;return c}Ja(b,a);b.prototype.loop=function(){this.timeoutRef=this.setTimeout(this.onInterval,this.interval)};b.prototype.hasChanged=function(a){return a.mtimeMs>this.prev.mtimeMs||a.nlink!==this.prev.nlink?!0:!1};b.prototype.start=function(a,b,c){void 0===b&&(b=!0);void 0===c&&(c=5007);this.filename=
m(a);this.setTimeout=b?setTimeout:hd.default;this.interval=c;this.prev=this.vol.statSync(this.filename);this.loop()};b.prototype.stop=function(){clearTimeout(this.timeoutRef);L.default.nextTick(ef,this)};return b}(O.EventEmitter);b.StatWatcher=Hd;var N;lc.inherits(T,Y.Readable);b.ReadStream=T;T.prototype.open=function(){var a=this;this._vol.open(this.path,this.flags,this.mode,function(b,c){b?(a.autoClose&&a.destroy&&a.destroy(),a.emit("error",b)):(a.fd=c,a.emit("open",c),a.read())})};T.prototype._read=
function(a){if("number"!==typeof this.fd)return this.once("open",function(){this._read(a)});if(!this.destroyed){if(!N||128>N.length-N.used)N=F.bufferAllocUnsafe(this._readableState.highWaterMark),N.used=0;var b=N,c=Math.min(N.length-N.used,a),d=N.used;void 0!==this.pos&&(c=Math.min(this.end-this.pos+1,c));if(0>=c)return this.push(null);var e=this;this._vol.read(this.fd,N,N.used,c,this.pos,function(a,c){a?(e.autoClose&&e.destroy&&e.destroy(),e.emit("error",a)):(a=null,0<c&&(e.bytesRead+=c,a=b.slice(d,
d+c)),e.push(a))});void 0!==this.pos&&(this.pos+=c);N.used+=c}};T.prototype._destroy=function(a,b){this.close(function(c){b(a||c)})};T.prototype.close=function(a){var b=this;if(a)this.once("close",a);if(this.closed||"number"!==typeof this.fd){if("number"!==typeof this.fd){this.once("open",ff);return}return L.default.nextTick(function(){return b.emit("close")})}this.closed=!0;this._vol.close(this.fd,function(a){a?b.emit("error",a):b.emit("close")});this.fd=null};lc.inherits(R,Y.Writable);b.WriteStream=
R;R.prototype.open=function(){this._vol.open(this.path,this.flags,this.mode,function(a,b){a?(this.autoClose&&this.destroy&&this.destroy(),this.emit("error",a)):(this.fd=b,this.emit("open",b))}.bind(this))};R.prototype._write=function(a,b,c){if(!(a instanceof F.Buffer))return this.emit("error",Error("Invalid data"));if("number"!==typeof this.fd)return this.once("open",function(){this._write(a,b,c)});var d=this;this._vol.write(this.fd,a,0,a.length,this.pos,function(a,b){if(a)return d.autoClose&&d.destroy&&
d.destroy(),c(a);d.bytesWritten+=b;c()});void 0!==this.pos&&(this.pos+=a.length)};R.prototype._writev=function(a,b){if("number"!==typeof this.fd)return this.once("open",function(){this._writev(a,b)});for(var c=this,d=a.length,e=Array(d),f=0,g=0;g<d;g++){var h=a[g].chunk;e[g]=h;f+=h.length}d=F.Buffer.concat(e);this._vol.write(this.fd,d,0,d.length,this.pos,function(a,d){if(a)return c.destroy&&c.destroy(),b(a);c.bytesWritten+=d;b()});void 0!==this.pos&&(this.pos+=f)};R.prototype._destroy=T.prototype._destroy;
R.prototype.close=T.prototype.close;R.prototype.destroySoon=R.prototype.end;var Id=function(a){function b(b){var c=a.call(this)||this;c._filename="";c._filenameEncoded="";c._recursive=!1;c._encoding=K.ENCODING_UTF8;c._onNodeChange=function(){c._emit("change")};c._onParentChild=function(a){a.getName()===c._getName()&&c._emit("rename")};c._emit=function(a){c.emit("change",a,c._filenameEncoded)};c._persist=function(){c._timer=setTimeout(c._persist,1E6)};c._vol=b;return c}Ja(b,a);b.prototype._getName=
function(){return this._steps[this._steps.length-1]};b.prototype.start=function(a,b,c,d){void 0===b&&(b=!0);void 0===c&&(c=!1);void 0===d&&(d=K.ENCODING_UTF8);this._filename=m(a);this._steps=v(this._filename);this._filenameEncoded=K.strToEncoding(this._filename);this._recursive=c;this._encoding=d;try{this._link=this._vol.getLinkOrThrow(this._filename,"FSWatcher")}catch(Wb){throw b=Error("watch "+this._filename+" "+Wb.code),b.code=Wb.code,b.errno=Wb.code,b;}this._link.getNode().on("change",this._onNodeChange);
this._link.on("child:add",this._onNodeChange);this._link.on("child:delete",this._onNodeChange);if(a=this._link.parent)a.setMaxListeners(a.getMaxListeners()+1),a.on("child:delete",this._onParentChild);b&&this._persist()};b.prototype.close=function(){clearTimeout(this._timer);this._link.getNode().removeListener("change",this._onNodeChange);var a=this._link.parent;a&&a.removeListener("child:delete",this._onParentChild)};return b}(O.EventEmitter);b.FSWatcher=Id});t(Xe);
var Ye=Xe.pathToFilename,Ze=Xe.filenameToSteps,$e=Xe.Volume,af=u(function(a,b){Object.defineProperty(b,"__esModule",{value:!0});b.fsProps="constants F_OK R_OK W_OK X_OK Stats".split(" ");b.fsSyncMethods="renameSync ftruncateSync truncateSync chownSync fchownSync lchownSync chmodSync fchmodSync lchmodSync statSync lstatSync fstatSync linkSync symlinkSync readlinkSync realpathSync unlinkSync rmdirSync mkdirSync mkdirpSync readdirSync closeSync openSync utimesSync futimesSync fsyncSync writeSync readSync readFileSync writeFileSync appendFileSync existsSync accessSync fdatasyncSync mkdtempSync copyFileSync createReadStream createWriteStream".split(" ");
b.fsAsyncMethods="rename ftruncate truncate chown fchown lchown chmod fchmod lchmod stat lstat fstat link symlink readlink realpath unlink rmdir mkdir mkdirp readdir close open utimes futimes fsync write read readFile writeFile appendFile exists access fdatasync mkdtemp copyFile watchFile unwatchFile watch".split(" ")});t(af);
var bf=u(function(a,b){function c(a){for(var b={F_OK:g,R_OK:h,W_OK:k,X_OK:p,constants:w.constants,Stats:ka.default,Dirent:Qc.default},c=0,d=e;c<d.length;c++){var n=d[c];"function"===typeof a[n]&&(b[n]=a[n].bind(a))}c=0;for(d=f;c<d.length;c++)n=d[c],"function"===typeof a[n]&&(b[n]=a[n].bind(a));b.StatWatcher=a.StatWatcher;b.FSWatcher=a.FSWatcher;b.WriteStream=a.WriteStream;b.ReadStream=a.ReadStream;b.promises=a.promises;b._toUnixTimestamp=Xe.toUnixTimestamp;return b}var d=l&&l.__assign||function(){d=
Object.assign||function(a){for(var b,c=1,d=arguments.length;c<d;c++){b=arguments[c];for(var e in b)Object.prototype.hasOwnProperty.call(b,e)&&(a[e]=b[e])}return a};return d.apply(this,arguments)};Object.defineProperty(b,"__esModule",{value:!0});var e=af.fsSyncMethods,f=af.fsAsyncMethods,g=w.constants.F_OK,h=w.constants.R_OK,k=w.constants.W_OK,p=w.constants.X_OK;b.Volume=Xe.Volume;b.vol=new Xe.Volume;b.createFsFromVolume=c;b.fs=c(b.vol);a.exports=d(d({},a.exports),b.fs);a.exports.semantic=!0});t(bf);
var rf=bf.createFsFromVolume;gd.prototype.emit=function(a){for(var b,c,d=[],e=1;e<arguments.length;e++)d[e-1]=arguments[e];e=this.listeners(a);try{for(var f=da(e),g=f.next();!g.done;g=f.next()){var h=g.value;try{h.apply(void 0,ia(d))}catch(k){console.error(k)}}}catch(k){b={error:k}}finally{try{g&&!g.done&&(c=f.return)&&c.call(f)}finally{if(b)throw b.error;}}return 0<e.length};
var sf=function(){function a(){this.volume=new $e;this.fs=rf(this.volume);this.fromJSON({"/dev/stdin":"","/dev/stdout":"","/dev/stderr":""})}a.prototype._toJSON=function(a,c,d){void 0===c&&(c={});var b=!0,f;for(f in a.children){b=!1;var g=a.getChild(f);if(g){var h=g.getNode();h&&h.isFile()?(g=g.getPath(),d&&(g=Yc(d,g)),c[g]=h.getBuffer()):h&&h.isDirectory()&&this._toJSON(g,c,d)}}a=a.getPath();d&&(a=Yc(d,a));a&&b&&(c[a]=null);return c};a.prototype.toJSON=function(a,c,d){var b,f;void 0===c&&(c={});
void 0===d&&(d=!1);var g=[];if(a){a instanceof Array||(a=[a]);try{for(var h=da(a),k=h.next();!k.done;k=h.next()){var p=Ye(k.value),n=this.volume.getResolvedLink(p);n&&g.push(n)}}catch(xa){var q={error:xa}}finally{try{k&&!k.done&&(b=h.return)&&b.call(h)}finally{if(q)throw q.error;}}}else g.push(this.volume.root);if(!g.length)return c;try{for(var B=da(g),m=B.next();!m.done;m=B.next())n=m.value,this._toJSON(n,c,d?n.getPath():"")}catch(xa){var v={error:xa}}finally{try{m&&!m.done&&(f=B.return)&&f.call(B)}finally{if(v)throw v.error;
}}return c};a.prototype.fromJSONFixed=function(a,c){for(var b in c){var e=c[b];if(e?null!==Object.getPrototypeOf(e):null!==e){var f=Ze(b);1<f.length&&(f="/"+f.slice(0,f.length-1).join("/"),a.mkdirpBase(f,511));a.writeFileSync(b,e||"")}else a.mkdirpBase(b,511)}};a.prototype.fromJSON=function(a){this.volume=new $e;this.fromJSONFixed(this.volume,a);this.fs=rf(this.volume);this.volume.releasedFds=[0,1,2];a=this.volume.openSync("/dev/stderr","w");var b=this.volume.openSync("/dev/stdout","w"),d=this.volume.openSync("/dev/stdin",
"r");if(2!==a)throw Error("invalid handle for stderr: "+a);if(1!==b)throw Error("invalid handle for stdout: "+b);if(0!==d)throw Error("invalid handle for stdin: "+d);};a.prototype.getStdOut=function(){return ba(this,void 0,void 0,function(){var a,c=this;return ca(this,function(){a=new Promise(function(a){a(c.fs.readFileSync("/dev/stdout","utf8"))});return[2,a]})})};return a}();export default sf;export{sf as WasmFs}