case *ast.MapType:
		return &Type{Size: p.PtrSize, Align: p.PtrSize, C: c("GoMap")}
	case *ast.ChanType:
		return &Type{Size: p.PtrSize, Align: p.PtrSize, C: c("GoChan")}
	case *ast.Ident:
		goTypesFixup := func(r *Type) *Type {
			if r.Size == 0 { // int or uint
				rr := new(Type)
				*rr = *r
				rr.Size = p.IntSize
				rr.Align = p.IntSize
				r = rr

	}
	c := new(call)
	c.wg.Add(1)
	g.m[key] = c
	g.mu.Unlock()

	g.doCall(c, key, fn)
	return c.val, c.err, c.dups > 0
}

// DoChan is like Do but returns a channel that will receive the
// results when they are ready.
func (g *Group) DoChan(key string, fn func() (any, error)) <-chan Result {
	ch := make(chan Result, 1)
	g.mu.Lock()
	if g.m == nil {
		g.m = make(map[string]*call)
	}

	"os/exec"
	"strconv"
	"time"
)

var (
	v         = flag.Bool("v", false, "verbose")
	doMaps    = flag.Bool("maps", true, "stress maps")
	doExec    = flag.Bool("exec", true, "stress exec")
	doChan    = flag.Bool("chan", true, "stress channels")
	doNet     = flag.Bool("net", true, "stress networking")
	doParseGo = flag.Bool("parsego", true, "stress parsing Go (generates garbage)")
)

func Println(a ...interface{}) {

	go func() {
		g.Do(key, func() (i interface{}, e error) {
			// Notify that we started
			secondCh <- struct{}{}
			<-secondCh
			return 2, nil
		})
	}()

	<-secondCh

	resultCh := g.DoChan(key, func() (i interface{}, e error) {
		panic("third must not be started")
	})

	if g.ForgetUnshared(key) {
		t.Errorf("Before first goroutine finished, key %q is shared, should return false", key)
	}

		doneAuthenticating(true)
		return record
	}

	// Record cache miss
	doneBlocking := stats.blocking(ctx)
	defer doneBlocking()
	defer doneAuthenticating(false)

	c := a.group.DoChan(key, func() (val interface{}, _ error) {
		// always use one place to read and write the output of AuthenticateToken
		record := &cacheRecord{}

		doneFetching := stats.fetching(ctx)

github.com/mitchellh/go-testing-interface v1.0.0 h1:fzU/JVNcaqHQEcVFAKeR41fkiLdIPrefOvVG1VZ96U0=
github.com/mitchellh/gox v0.4.0 h1:lfGJxY7ToLJQjHHwi0EX6uYBdK78egf954SQl13PQJc=
github.com/mitchellh/iochan v1.0.0 h1:C+X3KsSTLFVBr/tK1eYN/vs4rJcvsiLU338UhYPJWeY=
github.com/mitchellh/mapstructure v1.1.2 h1:fmNYVwqnSfB9mZU6OS2O6GsXM+wcskZDuKQzvN1EDeE=
github.com/morikuni/aec v1.0.0 h1:nP9CBfwrvYnBRgY6qfDQkygYDmYwOilePFkwzv4dU8A=

	lookupGroupCtx, lookupGroupCancel := context.WithCancel(withUnexpiredValuesPreserved(ctx))

	lookupKey := network + "\000" + host
	dnsWaitGroup.Add(1)
	ch := r.getLookupGroup().DoChan(lookupKey, func() (any, error) {
		return testHookLookupIP(lookupGroupCtx, resolverFunc, network, host)
	})

	dnsWaitGroupDone := func(ch <-chan singleflight.Result, cancelFn context.CancelFunc) {
		<-ch

			withJSON:   `{ "person": [ { "Id": 1, "Name": "Anshu", "Address": "Templestowe", "Car": "Jeep" }, { "Id": 2, "Name": "Ben Mostafa", "Address": "Las Vegas", "Car": "Mustang" }, { "Id": 3, "Name": "Rohan Wood", "Address": "Wooddon", "Car": "VW" } ] }`,
		},
		{
			name:       "lower-case-is",
			query:      `select * from s3object[*] as s where s.request.header['User-Agent'] is not null`,

github.com/mitchellh/go-wordwrap v1.0.1/go.mod h1:R62XHJLzvMFRBbcrT7m7WgmE1eOyTSsCt+hzestvNj0=
github.com/mitchellh/gox v0.4.0/go.mod h1:Sd9lOJ0+aimLBi73mGofS1ycjY8lL3uZM3JPS42BGNg=
github.com/mitchellh/iochan v1.0.0/go.mod h1:JwYml1nuB7xOzsp52dPpHFffvOCDupsG0QubkSMEySY=
github.com/mitchellh/mapstructure v0.0.0-20160808181253-ca63d7c062ee/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=

Frederic Bastien, gadagashwini, Gauri1 Deshpande, Georgiy Manuilov, Guilherme De
Lázari, Guozhong Zhuang, H1Gdev, homuler, Hongxu Jia, Jacky_Yin, jayfurmanek,
jgehw, Jhalak Patel, Jinzhe Zeng, Johan Gunnarsson, Jonathan Dekhtiar, Kaixi
Hou, Kanvi Khanna, Kevin Cheng, Koan-Sin Tan, Kruglov-Dmitry, Kun Lu, Lemo,
Lequn Chen, long.chen, Louis Sugy, Mahmoud Abuzaina, Mao, Marius Brehler, Mark