func (m *mstate) BeginPackage(pd *decodemeta.CoverageMetaDataDecoder, pkgIdx uint32) {
	dbgtrace(3, "VisitPackage(pk=%d path=%s)", pkgIdx, pd.PackagePath())
	m.mm.visitPackage(pd, pkgIdx, *pcombineflag)
}

func (m *mstate) EndPackage(pd *decodemeta.CoverageMetaDataDecoder, pkgIdx uint32) {
}

func (m *mstate) VisitFunc(pkgIdx uint32, fnIdx uint32, fd *coverage.FuncDesc) {
	m.mm.visitFunc(pkgIdx, fnIdx, fd, mergeMode, *pcombineflag)
}

	np := uint32(mfr.NumPackages())
	payload := []byte{}
	for pkIdx := uint32(0); pkIdx < np; pkIdx++ {
		var pd *decodemeta.CoverageMetaDataDecoder
		pd, payload, err = mfr.GetPackageDecoder(pkIdx, payload)
		if err != nil {
			return r.fatal("reading pkg %d from meta-file %s: %s", pkIdx, p.MetaFile, err)
		}
		r.processPackage(p.MetaFile, pd, pkIdx)
	}
	r.vis.EndPod(p)

	return nil
}

}

func (s *sstate) BeginPackage(pd *decodemeta.CoverageMetaDataDecoder, pkgIdx uint32) {
	s.mm.visitPackage(pd, pkgIdx, false)
}

func (s *sstate) EndPackage(pd *decodemeta.CoverageMetaDataDecoder, pkgIdx uint32) {
}

func (s *sstate) VisitFunc(pkgIdx uint32, fnIdx uint32, fd *coverage.FuncDesc) {
	s.mm.visitFunc(pkgIdx, fnIdx, fd, s.mode, false)
}

func (s *sstate) Finish() {

func (v *visitor) BeginPackage(pd *decodemeta.CoverageMetaDataDecoder, pkgIdx uint32)              {}
func (v *visitor) EndPackage(pd *decodemeta.CoverageMetaDataDecoder, pkgIdx uint32)                {}
func (v *visitor) VisitFunc(pkgIdx uint32, fnIdx uint32, fd *coverage.FuncDesc)                    { v.metaFuncCount++ }

func (v *ctrVis) VisitFuncs(f encodecounter.CounterVisitorFn) error {
	for _, fn := range v.funcs {
		if err := f(fn.PkgIdx, fn.FuncIdx, fn.Counters); err != nil {
			return err
		}
	}
	return nil
}

func mkfunc(p uint32, f uint32, c []uint32) decodecounter.FuncPayload {
	return decodecounter.FuncPayload{
		PkgIdx:   p,
		FuncIdx:  f,
		Counters: c,
	}
}

func TestCounterDataWriterReader(t *testing.T) {

		var ver int
		if abi == goobj.SymABIstatic {
			// Static symbol
			ver = 1
		}
		return ver
	}

	resolveSymRef := func(s goobj.SymRef) string {
		var i uint32
		switch p := s.PkgIdx; p {
		case goobj.PkgIdxInvalid:
			if s.SymIdx != 0 {
				panic("bad sym ref")
			}
			return ""
		case goobj.PkgIdxHashed64:
			i = s.SymIdx + uint32(r.NSym())
		case goobj.PkgIdxHashed:

	writeUint32 := func(x uint32) {
		binary.LittleEndian.PutUint32(b[:], x)
		w.Write(b[:])
	}
	writeUint32(uint32(inl.Parent))
	writeUint32(uint32(inl.File))
	writeUint32(uint32(inl.Line))
	writeUint32(inl.Func.PkgIdx)
	writeUint32(inl.Func.SymIdx)
	writeUint32(uint32(inl.ParentPC))
}

// Read an InlTreeNode from b, return the remaining bytes.
func (inl *InlTreeNode) Read(b []byte) []byte {
	readUint32 := func() uint32 {

		&LSym{P: []byte("")},            // 4
		&LSym{P: []byte("")},            // 5
		&LSym{P: []byte("")},            // 6
	}
	for _, s := range syms {
		s.Set(AttrContentAddressable, true)
		s.PkgIdx = goobj.PkgIdxHashed
	}
	// s3 references s0
	r := Addrel(syms[3])
	r.Sym = syms[0]
	// s4 references s0
	r = Addrel(syms[4])
	r.Sym = syms[0]
	// s5 references s1
	r = Addrel(syms[5])
	r.Sym = syms[1]

		}
	}

	// Visit meta-data file.
	np := uint32(mfr.NumPackages())
	payload := []byte{}
	for pkIdx := uint32(0); pkIdx < np; pkIdx++ {
		var pd *decodemeta.CoverageMetaDataDecoder
		pd, payload, err = mfr.GetPackageDecoder(pkIdx, payload)
		if err != nil {
			return fmt.Errorf("reading pkg %d from meta-file %s: %s", pkIdx, p.MetaFile, err)
		}
		ts.cf.SetPackage(pd.PackagePath())
		importpaths[pd.PackagePath()] = struct{}{}

	slot := len(Meta.List)
	Meta.List = append(Meta.List, CovMetaBlob{
		P:                  (*byte)(p),
		Len:                dlen,
		Hash:               hash,
		PkgPath:            pkgpath,
		PkgID:              pkgid,
		CounterMode:        cmode,
		CounterGranularity: cgran,
	})
	if pkgid != -1 {
		if Meta.PkgMap == nil {