hunk.code_window: 	app.Srv.Store = app.newStore()
   	if err := app.ensureAsymmetricSigningKey(); err != nil {
   		return nil, errors.Wrapf(err, "unable to ensure asymmetric signing key")
   	}
   	app.initJobs()
   	app.AddLicenseListener(func() {
   		app.initJobs()
   	})
  
hunk.labels: keep keep keep keep add keep keep keep keep keep
hunk.after_edit: 	app.EnsureDiagnosticId()
   	app.regenerateClientConfig()
  
hunk.file_path: app/app.go
hunk.type: add
file: package dns
  
  import (
  	"fmt"
  	"strings"
  )
  
  // PrivateRdata is an interface used for implementing "Private Use" RR types, see
  // RFC 6895. This allows one to experiment with new RR types, without requesting an
  // official type code. Also see dns.PrivateHandle and dns.PrivateHandleRemove.
  type PrivateRdata interface {
  	// String returns the text presentaton of the Rdata of the Private RR.
  	String() string
  	// Parse parses the Rdata of the private RR.
  	Parse([]string) error
  	// Pack is used when packing a private RR into a buffer.
  	Pack([]byte) (int, error)
  	// Unpack is used when unpacking a private RR from a buffer.
  	// TODO(miek): diff. signature than Pack, see edns0.go for instance.
  	Unpack([]byte) (int, error)
  	// Copy copies the Rdata.
  	Copy(PrivateRdata) error
  	// Len returns the length in octets of the Rdata.
  	Len() int
  }
  
  // PrivateRR represents an RR that uses a PrivateRdata user-defined type.
  // It mocks normal RRs and implements dns.RR interface.
  type PrivateRR struct {
  	Hdr  RR_Header
  	Data PrivateRdata
  }
  
  func mkPrivateRR(rrtype uint16) *PrivateRR {
  	// Panics if RR is not an instance of PrivateRR.
  	rrfunc, ok := TypeToRR[rrtype]
  	if !ok {
  		panic(fmt.Sprintf("dns: invalid operation with Private RR type %d", rrtype))
  	}
  
  	anyrr := rrfunc()
  	switch rr := anyrr.(type) {
  	case *PrivateRR:
  		return rr
  	}
  	panic(fmt.Sprintf("dns: RR is not a PrivateRR, TypeToRR[%d] generator returned %T", rrtype, anyrr))
  }
  
  // Header return the RR header of r.
  func (r *PrivateRR) Header() *RR_Header { return &r.Hdr }
  
  func (r *PrivateRR) String() string { return r.Hdr.String() + r.Data.String() }
  
  // Private len and copy parts to satisfy RR interface.
  func (r *PrivateRR) len() int { return r.Hdr.len() + r.Data.Len() }
  func (r *PrivateRR) copy() RR {
  	// make new RR like this:
  	rr := mkPrivateRR(r.Hdr.Rrtype)
  	rr.Hdr = r.Hdr
  
  	err := r.Data.Copy(rr.Data)
  	if err != nil {
  		panic("dns: got value that could not be used to copy Private rdata")
  	}
  	return rr
  }
  func (r *PrivateRR) pack(msg []byte, off int, compression map[string]int, compress bool) (int, error) {
  	off, err := r.Hdr.pack(msg, off, compression, compress)
  	if err != nil {
  		return off, err
  	}
  	headerEnd := off
  	n, err := r.Data.Pack(msg[off:])
  	if err != nil {
  		return len(msg), err
  	}
  	off += n
  	r.Header().Rdlength = uint16(off - headerEnd)
  	return off, nil
  }
  
  // PrivateHandle registers a private resource record type. It requires
  // string and numeric representation of private RR type and generator function as argument.
  func PrivateHandle(rtypestr string, rtype uint16, generator func() PrivateRdata) {
  	rtypestr = strings.ToUpper(rtypestr)
  
  	TypeToRR[rtype] = func() RR { return &PrivateRR{RR_Header{}, generator()} }
  	TypeToString[rtype] = rtypestr
  	StringToType[rtypestr] = rtype
  
  	typeToUnpack[rtype] = func(h RR_Header, msg []byte, off int) (RR, int, error) {
  		if noRdata(h) {
  			return &h, off, nil
  		}
  		var err error
  
  		rr := mkPrivateRR(h.Rrtype)
  		rr.Hdr = h
  
  		off1, err := rr.Data.Unpack(msg[off:])
  		off += off1
  		if err != nil {
  			return rr, off, err
  		}
  		return rr, off, err
  	}
  
  	setPrivateRR := func(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
  		rr := mkPrivateRR(h.Rrtype)
  		rr.Hdr = h
  
  		var l lex
  		text := make([]string, 0, 2) // could be 0..N elements, median is probably 1
  	Fetch:
  		for {
  			// TODO(miek): we could also be returning _QUOTE, this might or might not
  			// be an issue (basically parsing TXT becomes hard)
  			switch l = <-c; l.value {
  			case zNewline, zEOF:
  				break Fetch
  			case zString:
  				text = append(text, l.token)
  			}
  		}
  
  		err := rr.Data.Parse(text)
  		if err != nil {
  			return nil, &ParseError{f, err.Error(), l}, ""
  		}
  
  		return rr, nil, ""
  	}
  
  	typeToparserFunc[rtype] = parserFunc{setPrivateRR, true}
  }
  
  // PrivateHandleRemove removes defenitions required to support private RR type.
  func PrivateHandleRemove(rtype uint16) {
  	rtypestr, ok := TypeToString[rtype]
  	if ok {
  		delete(TypeToRR, rtype)
  		delete(TypeToString, rtype)
  		delete(typeToparserFunc, rtype)
  		delete(StringToType, rtypestr)
  		delete(typeToUnpack, rtype)
  	}
  	return
  }
  