internal/cpu,
	internal/goarch,
	internal/godebugs,
	internal/goexperiment,
	internal/goos,
	internal/profilerecord,
	math/bits
	< internal/bytealg
	< internal/stringslite
	< internal/itoa
	< internal/unsafeheader
	< runtime/internal/sys
	< internal/runtime/syscall
	< internal/runtime/atomic
	< internal/runtime/exithook
	< runtime/internal/math
	< runtime
	< sync/atomic
	< internal/race

	for i, test := range nameConstraintsTests {
		t.Run(fmt.Sprintf("#%d", i), func(t *testing.T) {
			rootPool := NewCertPool()
			rootKey := privateKeys.Get().(*ecdsa.PrivateKey)
			rootName := "Root " + strconv.Itoa(i)

			// keys keeps track of all the private keys used in a given
			// test and puts them back in the privateKeys pool at the end.
			keys := []*ecdsa.PrivateKey{rootKey}

			w.byte(')')
		}

	case *Named:
		// If hashing, write a unique prefix for t to represent its identity, since
		// named type identity is pointer identity.
		if w.ctxt != nil {
			w.string(strconv.Itoa(w.ctxt.getID(t)))
		}
		w.typeName(t.obj) // when hashing written for readability of the hash only
		if t.inst != nil {
			// instantiated type
			w.typeList(t.inst.targs.list())

			w.byte(')')
		}

	case *Named:
		// If hashing, write a unique prefix for t to represent its identity, since
		// named type identity is pointer identity.
		if w.ctxt != nil {
			w.string(strconv.Itoa(w.ctxt.getID(t)))
		}
		w.typeName(t.obj) // when hashing written for readability of the hash only
		if t.inst != nil {
			// instantiated type
			w.typeList(t.inst.targs.list())

	//   counterVar[0] = <num_units>
	//   counterVar[1] = pkgId
	//   counterVar[2] = fnId
	//
	cv := f.fn.counterVar
	regHook := hookWrite(cv, 0, strconv.Itoa(len(f.fn.units))) + " ; " +
		hookWrite(cv, 1, mkPackageIdExpression()) + " ; " +
		hookWrite(cv, 2, strconv.Itoa(int(funcId))) + singleCtr

	// Insert the registration sequence into the function. We want this sequence to

		// These are all interruptible, they just encode a nonstandard
		// way of recovering when interrupted.
		return false
	default:
		var buf [20]byte
		panic("invalid unsafe point code " + string(itoa(buf[:], uint64(v))))
	}
}

type TraceMap struct {
	traceMap
}

func (m *TraceMap) PutString(s string) (uint64, bool) {

//	-                   invalid position without file name
func (pos Position) String() string {
	s := pos.Filename
	if pos.IsValid() {
		if s != "" {
			s += ":"
		}
		s += strconv.Itoa(pos.Line)
		if pos.Column != 0 {
			s += fmt.Sprintf(":%d", pos.Column)
		}
	}
	if s == "" {
		s = "-"
	}
	return s
}

// Pos is a compact encoding of a source position within a file set.

// package monkey-patches those variables before running tests).
func TestMain(m *testing.M) {
	flag.Parse()

	pid := os.Getpid()
	if os.Getenv("GO_EXEC_TEST_PID") == "" {
		os.Setenv("GO_EXEC_TEST_PID", strconv.Itoa(pid))

		if runtime.GOOS == "windows" {
			// Normalize environment so that test behavior is consistent.
			// (The behavior of LookPath varies depending on this variable.)
			//

	k := make([]string, n)
	for i := 0; i < len(k); i++ {
		k[i] = strconv.Itoa(i)
	}
	b.ResetTimer()
	a := make(map[string]int)
	for i := 0; i < b.N; i++ {
		a[k[i&(n-1)]] = i
	}
}

func benchmarkMapOperatorAssignStr(b *testing.B, n int) {
	k := make([]string, n)
	for i := 0; i < len(k); i++ {
		k[i] = strconv.Itoa(i)
	}
	b.ResetTimer()
	a := make(map[string]string)

}

func benchmarkSendFile(b *testing.B, proto string) {
	for i := 0; i <= 10; i++ {
		size := 1 << (i + 10)
		bench := sendFileBench{
			proto:     proto,
			chunkSize: size,
		}
		b.Run(strconv.Itoa(size), bench.benchSendFile)
	}
}

type sendFileBench struct {
	proto     string
	chunkSize int
}

func (bench sendFileBench) benchSendFile(b *testing.B) {
	fileSize := b.N * bench.chunkSize