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n=we.basename(t),o=Ne.mayCreate(r,n);if(o)throw new Ne.ErrnoError(o);if(!r.node_ops.symlink)throw new Ne.ErrnoError(63);return r.node_ops.symlink(r,n,e)},rename:function(e,t){var r,n,o=we.dirname(e),i=we.dirname(t),a=we.basename(e),s=we.basename(t);if(r=Ne.lookupPath(e,{parent:!0}).node,n=Ne.lookupPath(t,{parent:!0}).node,!r||!n)throw new Ne.ErrnoError(44);if(r.mount!==n.mount)throw new Ne.ErrnoError(75);var u,c=Ne.lookupNode(r,a),f=_e.relative(e,i);if("."!==f.charAt(0))throw new Ne.ErrnoError(28);if("."!==(f=_e.relative(t,o)).charAt(0))throw new Ne.ErrnoError(55);try{u=Ne.lookupNode(n,s)}catch(e){}if(c!==u){var l=Ne.isDir(c.mode),d=Ne.mayDelete(r,a,l);if(d)throw new Ne.ErrnoError(d);if(d=u?Ne.mayDelete(n,s,l):Ne.mayCreate(n,s))throw new Ne.ErrnoError(d);if(!r.node_ops.rename)throw new Ne.ErrnoError(63);if(Ne.isMountpoint(c)||u&&Ne.isMountpoint(u))throw new Ne.ErrnoError(10);if(n!==r&&(d=Ne.nodePermissions(r,"w")))throw new 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