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

func (m *mstate) Finish() {
	if *pcombineflag {
		finalHash := m.mm.emitMeta(*outdirflag, true)
		m.mm.emitCounters(*outdirflag, finalHash)
	}

	mm.pkgs = nil
	mm.pod = nil

	// Reset counter mode and granularity
	mm.ResetModeAndGranularity()
}

// emitMeta encodes and writes out a new coverage meta-data file as
// part of a merge operation, specifically a merge with the
// "-pcombine" flag.
func (mm *metaMerge) emitMeta(outdir string, pcombine bool) [16]byte {
	fh := md5.New()
	blobs := [][]byte{}
	tlen := uint64(unsafe.Sizeof(coverage.MetaFileHeader{}))