How to use returnInstance method of repro Package

Best Syzkaller code snippet using repro.returnInstance

repro.go

Source:repro.go

...260	inst := <-ctx.instances261	if inst == nil {262		return false, fmt.Errorf("all VMs failed to boot")263	}264	defer ctx.returnInstance(inst)265	pstr := p.Serialize()266	progFile, err := fileutil.WriteTempFile(pstr)267	if err != nil {268		return false, err269	}270	defer os.Remove(progFile)271	vmProgFile, err := inst.Copy(progFile)272	if err != nil {273		return false, fmt.Errorf("failed to copy to VM: %v", err)274	}275	repeat := "1"276	if opts.Repeat {277		repeat = "0"278	}279	command := fmt.Sprintf("%v -executor %v -cover=0 -procs=%v -repeat=%v -sandbox %v -threaded=%v -collide=%v %v",280		inst.execprogBin, inst.executorBin, opts.Procs, repeat, opts.Sandbox, opts.Threaded, opts.Collide, vmProgFile)281	Logf(2, "reproducing crash '%v': testing program (duration=%v, %+v): %s",282		ctx.crashDesc, duration, opts, p)283	return ctx.testImpl(inst, command, duration)284}285func (ctx *context) testBin(bin string, duration time.Duration) (crashed bool, err error) {286	inst := <-ctx.instances287	if inst == nil {288		return false, fmt.Errorf("all VMs failed to boot")289	}290	defer ctx.returnInstance(inst)291	bin, err = inst.Copy(bin)292	if err != nil {293		return false, fmt.Errorf("failed to copy to VM: %v", err)294	}295	Logf(2, "reproducing crash '%v': testing compiled C program", ctx.crashDesc)296	return ctx.testImpl(inst, bin, duration)297}298func (ctx *context) testImpl(inst vm.Instance, command string, duration time.Duration) (crashed bool, err error) {299	outc, errc, err := inst.Run(duration, nil, command)300	if err != nil {301		return false, fmt.Errorf("failed to run command in VM: %v", err)302	}303	desc, text, output, crashed, timedout := vm.MonitorExecution(outc, errc, false, false, ctx.cfg.ParsedIgnores)304	_, _, _ = text, output, timedout305	if !crashed {306		Logf(2, "reproducing crash '%v': program did not crash", ctx.crashDesc)307		return false, nil308	}309	Logf(2, "reproducing crash '%v': program crashed: %v", ctx.crashDesc, desc)310	return true, nil311}312func (ctx *context) returnInstance(inst *instance) {313	ctx.bootRequests <- inst.index314	inst.Close()315}...

returnInstance

Using AI Code Generation

1import "fmt"2func main() {3  fmt.Println(repro.returnInstance())4}5import "fmt"6func main() {7  fmt.Println(repro.returnInstance())8}9import "fmt"10func main() {11  fmt.Println(repro.returnInstance())12}13import "fmt"14func main() {15  fmt.Println(repro.returnInstance())16}17import "fmt"18func main() {19  fmt.Println(repro.returnInstance())20}21import "fmt"22func main() {23  fmt.Println(repro.returnInstance())24}25import "fmt"26func main() {27  fmt.Println(repro.returnInstance())28}29import "fmt"30func main() {31  fmt.Println(repro.returnInstance())32}33import "fmt"34func main() {35  fmt.Println(repro.returnInstance())36}37import "fmt"38func main() {39  fmt.Println(repro.returnInstance())40}41import "fmt"42func main() {43  fmt.Println(repro.returnInstance())44}45import "fmt"46func main() {47  fmt.Println(repro.returnInstance())48}49import "fmt"50func main() {51  fmt.Println(repro.returnInstance())52}53import

returnInstance

Using AI Code Generation

1import (2type Repro struct {3}4func (r *Repro) returnInstance() *Repro {5}6func main() {7r := Repro{}8r.returnInstance()9fmt.Println("Done")10}11import (12type Repro struct {13}14func (r *Repro) returnInstance() Repro {15}16func main() {17r := Repro{}18r.returnInstance()19fmt.Println("Done")20}21import (22type Repro struct {23}24func (r Repro) returnInstance() Repro {25}26func main() {27r := Repro{}28r.returnInstance()29fmt.Println("Done")30}31import (32type Repro struct {33}34func (r Repro) returnInstance() *Repro {35}36func main() {37r := Repro{}38r.returnInstance()39fmt.Println("Done")40}41import (42type Repro struct {43}44func (r Repro) returnInstance() *Repro {45}46func main() {47r := Repro{}48r.returnInstance()49fmt.Println("Done")50}51import (52type Repro struct {53}54func (r *Repro) returnInstance() Repro {55}56func main() {57r := Repro{}58r.returnInstance()59fmt.Println("Done")60}61import (62type Repro struct {63}64func (r *Repro) returnInstance() *Repro {65}66func main() {67r := Repro{}68r.returnInstance()69fmt.Println("Done")70}71import (72type Repro struct {73}74func (r *Repro

returnInstance

Using AI Code Generation

1import (2func main() {3    fmt.Println(repro.ReturnInstance())4}5import (6type repro struct {7}8func (r repro) String() string {9    return fmt.Sprintf("name: %s", r.name)10}11func ReturnInstance() repro {12    return repro{name: "repro"}13}14import (15func main() {16    fmt.Println(repro.ReturnInstance())17}18import (19type Repro struct {20}21func (r Repro) String() string {22    return fmt.Sprintf("name: %s", r.name)23}24func ReturnInstance() Repro {25    return Repro{name: "repro"}26}

returnInstance

Using AI Code Generation

1import (2func main() {3    fmt.Println(repro.ReturnInstance())4}5type Repro struct {6}7func NewRepro() *Repro {8    return &Repro{9    }10}11func ReturnInstance() *Repro {12    return NewRepro()13}14./2.go:8: cannot use repro.ReturnInstance() (type *repro.Repro) as type repro.Repro in assignment15This is because the method ReturnInstance() returns a pointer to a Repro instance, and the variable repro is of type Repro . If you change the variable to be of type *Repro , the code will compile and run as expected:16import (17func main() {18    repro = repro.ReturnInstance()19    fmt.Println(repro)20}

returnInstance

Using AI Code Generation

1import (2func main() {3repro.ReturnInstance()4}5func ReturnInstance() {6}

returnInstance

Using AI Code Generation

1import "fmt"2func main() {3    result = repro.returnInstance(a,b,c)4    fmt.Println(result)5}6import "fmt"7func main() {8    result = repro.returnInstance(a,b,c)9    fmt.Println(result)10}

returnInstance

Using AI Code Generation

1import (2func main() {3    obj = obj.returnInstance()4    fmt.Printf("Returned object is: %v", obj)5}6type repro struct {7}8func (obj repro) returnInstance() repro {9}10import (11func TestRepro(t *testing.T) {12    obj = obj.returnInstance()13    if obj.name != "" {14        t.Errorf("Expected empty name, got %v", obj.name)15    }16}17--- PASS: TestRepro (0.00s)

returnInstance

Using AI Code Generation

1import "fmt"2func main() {3    r := repro{}4    r.returnInstance()5    fmt.Println("Done")6}7{0}8import "fmt"9func main() {10    r := repro{}11    r.returnInstance()12    fmt.Println("Done")13}

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