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vare=require("buffer").Buffer,r=require("es6-promisify"),t=r.promisify,n=require("../path.js"),s=require("../shared.js").nop,a=require("../constants.js"),o=a.FILE_SYSTEM_NAME,i=a.FS_FORMAT,u=a.FS_READY,m=a.FS_PENDING,c=a.FS_ERROR,f=a.FS_NODUPEIDCHECK,l=require("../providers/index.js"),h=require("../shell/shell.js"),p=require("../../lib/intercom.js"),d=require("../fs-watcher.js"),g=require("../errors.js"),b=require("../shared.js").guid,A=a.STDIN,P=a.STDOUT,v=a.STDERR,y=require("./implementation.js");functionE(e){return"function"==typeofe?e:function(e){if(e)throwe}}functionR(e){e&&console.error("Filer error: ",e)}functionw(e){if(!(e&&e.protocol&&e.pathname))returne;if("file:"!==e.protocol)thrownewg.EINVAL("only file: URLs are supported for paths",e);for(varr=e.pathname,t=0;t<r.length;t++)if("%"===r[t]){varn=32|r.codePointAt(t+2);if("2"===r[t+1]&&102===n)thrownewg.EINVAL("file: URLs must not include encoded / characters",e)}returndecodeURIComponent(r)}functionS(r){returne.isBuffer(r)?r.toString():r}functionO(e,r){returne?n.isNull(e)?newg.EINVAL("Path must be a string without null bytes.",e):r||n.isAbsolute(e)?void0:newg.EINVAL("Path must be absolute.",e):newg.EINVAL("Path must be a string",e)}functionx(e,r,t){varn=e[r],s=O(n=S(n=w(n)),t);if(s)throws;e[r]=n}functionF(e,r){r=r||R;varw=(e=e||{}).flags||[],S=e.guid?e.guid:b,O=e.provider||newl.Default(e.name||o),_=e.name||O.name,q=w.includes(i),C=this;C.readyState=m,C.name=_,C.error=null,C.stdin=A,C.stdout=P,C.stderr=v,C.constants=a.fsConstants,C.F_OK=a.fsConstants.F_OK,C.R_OK=a.fsConstants.R_OK,C.W_OK=a.fsConstants.W_OK,C.X_OK=a.fsConstants.X_OK,this.Shell=h.bind(void0,this);varI=[];functionN(e){returnfunction(r){w.includes(f)?r(null,S()):functionr(t){varn=S();e.getObject(n,function(e,s){e?t(e):s?r(t):t(null,n)})}(r)}}this.queueOrRun=function(e){varr;returnu===C.readyState?e.call(C):c===C.readyState?r=newg.EFILESYSTEMERROR("unknown error"):I.push(e),r},this.watch=function(e,r,t){if(n.isNull(e))thrownewError("Path must be a string without null bytes.");"function"==typeofr&&(t=r,r={}),r=r||{},t=t||s;vara=newd;returna.start(e,!1,r.recursive),a.on("change",t),a},O.open(function(e){functiont(e){functiont(e){varr=O[e]();returnr.name=_,r.flags=w,r.changes=[],r.guid=N(r),r.close=function(){vare=r.changes;!function(e){if(e.length){varr=p.getInstance();e.forEach(function(e){r.emit(e.event,e.path)})}}(e),e.length=0},r}C.provider={openReadWriteContext:function(){returnt("getReadWriteContext")},openReadOnlyContext:function(){returnt("getReadOnlyContext")}},C.readyState=e?c:u,I.forEach(function(e){e.call(this)}.bind(C)),I=null,r(e,C)}if(e)returnt(e);varn=O.getReadWriteContext();n.guid=N(n),q?n.clear(function(e){if(e)returnt(e);y.ensureRootDirectory(n,t)}):y.ensureRootDirectory(n,t)}),F.prototype.promises={},[{name:"appendFile",promises:!0,absPathArgs:[0]},{name:"access",promises:!0,absPathArgs:[0]},{name:"chown",promises:!0,absPathArgs:[0]},{name:"chmod",promises:!0,absPathArgs:[0]},{name:"close"},{name:"exists",absPathArgs:[0]},{name:"fchown"},{name:"fchmod"},{name:"fgetxattr"},{name:"fremovexattr"},{name:"fsetxattr"},{name:"fstat"},{name:"fsync"},{name:"ftruncate"},{name:"futimes"},{name:"getxattr",promises:!0,absPathArgs:[0]},{name:"link",promises:!0,absPathArgs:[0,1]},{name:"lseek"},{name:"lstat",promises:!0},{name:"mkdir",promises:!0,absPathArgs:[0]},{name:"mkdtemp",promises:!0},{name:"mknod",promises:!0,absPathArgs:[0]},{name:"open",promises:!0,absPathArgs:[0]},{name:"readdir",promises:!0,absPathArgs:[0]},{name:"read"},{name:"readFile",promises:!0,absPathArgs:[0]},{name:"readlink",promises:!0,absPathArgs:[0]},{name:"removexattr",promises:!0,absPathArgs:[0]},{name:"rename",promises:!0,absPathArgs:[0,1]},{name:"rmdir",promises:!0,absPathArgs:[0]},{name:"setxattr",promises:!0,absPathArgs:[0]},{name:"stat",promises:!0,absPathArgs:[0]},{name:"symlink",promises:!0,relPathArgs:[0],absPathArgs:[1]},{name:"truncate",promises:!0,absPathArgs:[0]},{name:"unlink",promises:!0,absPathArgs:[0]},{name:"utimes",promises:!0,absPathArgs:[0]},{name:"wr