type String string

type PtrInterfaceItem struct {
	Str1 any // basic
	Str2 any // derived
}

// We'll send pointers; should receive values.
// Also check that we can register T but send *T.
func TestInterfacePointer(t *testing.T) {
	b := new(bytes.Buffer)
	str1 := "howdy"
	str2 := String("kiddo")
	item1 := &PtrInterfaceItem{
		&str1,
		&str2,
	}
	// Register the type.
	Register(str2)

}

func (b *Buffer) baz() { // ERROR "b does not escape$"
	b.str1 = b.str1[1:2] // ERROR "\(\*Buffer\).baz ignoring self-assignment in b.str1 = b.str1\[1:2\]$"
	b.str1 = b.str2[1:2] // ERROR "\(\*Buffer\).baz ignoring self-assignment in b.str1 = b.str2\[1:2\]$"
}

func (b *Buffer) bat() { // ERROR "leaking param content: b$"

}

func (b *Buffer) baz() { // ERROR "b does not escape$"
	b.str1 = b.str1[1:2] // ERROR "\(\*Buffer\).baz ignoring self-assignment in b.str1 = b.str1\[1:2\]$"
	b.str1 = b.str2[1:2] // ERROR "\(\*Buffer\).baz ignoring self-assignment in b.str1 = b.str2\[1:2\]$"
}

func (b *Buffer) bat() { // ERROR "leaking param content: b$"

	m.Set("map1", &m1)
	m1.Add("a", 1)
	m1.Add("z", 2)
	m.Set("map2", &m2)
	for i := 0; i < 9; i++ {
		m2.Add(strconv.Itoa(i), int64(i))
	}
	var s1, s2 String
	m.Set("str1", &s1)
	s1.Set("hello, world!")
	m.Set("str2", &s2)
	s2.Set("fizz buzz")
	b.ResetTimer()

	b.ReportAllocs()
	for i := 0; i < b.N; i++ {
		_ = m.String()
	}
}

func BenchmarkRealworldExpvarUsage(b *testing.B) {

func lcpSuffix(strs []string) string {
	return lcp(strs, false)
}

func lcp(strs []string, pre bool) string {
	// short-circuit empty list
	if len(strs) == 0 {
		return ""
	}
	xfix := strs[0]
	// short-circuit single-element list
	if len(strs) == 1 {
		return xfix
	}
	// compare first to rest
	for _, str := range strs[1:] {
		xfixl := len(xfix)
		strl := len(str)

			Valu("sb", OpSB, c.config.Types.Uintptr, 0, nil),
			Goto("checkPtr")),
		Bloc("checkPtr",
			Valu("ptr1", OpLoad, ptrType, 0, nil, "sb", "mem"),
			Valu("bool1", OpIsNonNil, c.config.Types.Bool, 0, nil, "ptr1"),
			If("bool1", "secondCheck", "exit")),
		Bloc("secondCheck",
			Valu("bool2", OpIsNonNil, c.config.Types.Bool, 0, nil, "ptr1"),
			If("bool2", "extra", "exit")),
		Bloc("extra",
			Goto("exit")),
		Bloc("exit",

				args[1] = fmt.Sprintf("$%s(SB)", s)
			}
		}
	}

	// Move addressing mode into opcode suffix.
	suffix := ""
	switch inst.Op {
	case LDR, LDRB, LDRH, LDRSB, LDRSH, LDRSW, STR, STRB, STRH, STUR, STURB, STURH, LD1, ST1:
		switch mem := inst.Args[1].(type) {
		case MemImmediate:
			switch mem.Mode {
			case AddrOffset:
				// no suffix
			case AddrPreIndex:
				suffix = ".W"
			case AddrPostIndex, AddrPostReg:

	}
	memberMatcher := regexp.MustCompile(EntryMemberPattern)
	list := memberMatcher.ReplaceAllString(string(out[:]), "")
	strs := strings.Split(list, "\n")
	results := make([]string, 0)
	for i := range strs {
		if len(strs[i]) > 0 {
			results = append(results, strs[i])
		}
	}
	return results, nil
}

// GetVersion returns the version string.
func (runner *runner) GetVersion() (string, error) {

		// float since we got here, so we convert.
		flV, _ := v.ToFloat()
		flA, _ := a.ToFloat()
		return floatCompare(op, flV, flA), nil
	}

	strV, ok1s := v.ToString()
	strA, ok2s := a.ToString()
	if ok1s && ok2s {
		return stringCompare(op, strV, strA), nil
	}

	boolV, ok1b := v.ToBool()
	boolA, ok2b := a.ToBool()
	if ok1b && ok2b {
		return boolCompare(op, boolV, boolA)
	}

}

// Get the server port from server.URL (e.g., https://127.0.0.1:36253)
func getServerPort(server *httptest.Server) (int, error) {
	strs := strings.Split(server.URL, ":")
	if len(strs) < 2 {
		return 0, fmt.Errorf("server.URL is invalid: %v", server.URL)
	}
	port, err := strconv.Atoi(strs[len(strs)-1])
	if err != nil {
		return 0, fmt.Errorf("error to extract port from URL: %v", server.URL)
	}
	return port, nil
}