How to use WithCancel method of rod Package

Best Rod code snippet using rod.WithCancel

context.go

Source:context.go Github

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...29 val := b.ctx.Value(timeoutContextKey{}).(*timeoutContextVal)30 val.cancel()31 return b.Context(val.parent)32}33// WithCancel 返回带有上下文取消函数的克隆34func (b *Browser) WithCancel() (*Browser, func()) {35 ctx, cancel := context.WithCancel(b.ctx)36 return b.Context(ctx), cancel37}38// Sleeper 为链式子操作返回具有指定Sleeper的克隆39func (b *Browser) Sleeper(sleeper func() utils.Sleeper) *Browser {40 newObj := *b41 newObj.sleeper = sleeper42 return &newObj43}44// Context 返回具有指定ctx的克隆，用于链式子操作45func (p *Page) Context(ctx context.Context) *Page {46 newObj := *p47 newObj.ctx = ctx48 return &newObj49}50// GetContext 获取当前ctx实例51func (p *Page) GetContext() context.Context {52 return p.ctx53}54// Timeout 返回一个克隆，其中包含所有链接子操作的指定总超时55func (p *Page) Timeout(d time.Duration) *Page {56 ctx, cancel := context.WithTimeout(p.ctx, d)57 return p.Context(context.WithValue(ctx, timeoutContextKey{}, &timeoutContextVal{p.ctx, cancel}))58}59// CancelTimeout 取消当前超时上下文，并返回具有父上下文的克隆60func (p *Page) CancelTimeout() *Page {61 val := p.ctx.Value(timeoutContextKey{}).(*timeoutContextVal)62 val.cancel()63 return p.Context(val.parent)64}65// WithCancel 返回带有上下文取消函数的克隆66func (p *Page) WithCancel() (*Page, func()) {67 ctx, cancel := context.WithCancel(p.ctx)68 return p.Context(ctx), cancel69}70// Sleeper 为链式子操作返回具有指定Sleeper的克隆71func (p *Page) Sleeper(sleeper func() utils.Sleeper) *Page {72 newObj := *p73 newObj.sleeper = sleeper74 return &newObj75}76// Context 返回具有指定ctx的克隆，用于链式子操作77func (el *Element) Context(ctx context.Context) *Element {78 newObj := *el79 newObj.ctx = ctx80 return &newObj81}82// GetContext 获取当前ctx的实例83func (el *Element) GetContext() context.Context {84 return el.ctx85}86// Timeout 返回一个克隆，其中包含所有链接子操作的指定总超时87func (el *Element) Timeout(d time.Duration) *Element {88 ctx, cancel := context.WithTimeout(el.ctx, d)89 return el.Context(context.WithValue(ctx, timeoutContextKey{}, &timeoutContextVal{el.ctx, cancel}))90}91// CancelTimeout 取消当前超时上下文，并返回具有父上下文的克隆92func (el *Element) CancelTimeout() *Element {93 val := el.ctx.Value(timeoutContextKey{}).(*timeoutContextVal)94 val.cancel()95 return el.Context(val.parent)96}97// WithCancel 返回带有上下文取消函数的克隆98func (el *Element) WithCancel() (*Element, func()) {99 ctx, cancel := context.WithCancel(el.ctx)100 return el.Context(ctx), cancel101}102// Sleeper 为链式子操作返回具有指定Sleeper的克隆103func (el *Element) Sleeper(sleeper func() utils.Sleeper) *Element {104 newObj := *el105 newObj.sleeper = sleeper106 return &newObj107}...

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WithCancel

Using AI Code Generation

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1import (2func main() {3 ctx, cancel := context.WithCancel(context.Background())4 go func() {5 time.Sleep(5 * time.Second)6 fmt.Println("Canceling context")7 cancel()8 }()9 select {10 case <-ctx.Done():11 fmt.Println("Context canceled")12 }13}14import (15func main() {16 deadline := time.Now().Add(10 * time.Second)17 ctx, cancel := context.WithDeadline(context.Background(), deadline)18 defer cancel()19 select {20 case <-time.After(15 * time.Second):21 fmt.Println("overslept")22 case <-ctx.Done():23 fmt.Println(ctx.Err())24 }25}26import (27func main() {28 ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)29 defer cancel()30 select {31 case <-time.After(10 * time.Second):32 fmt.Println("overslept")33 case <-ctx.Done():34 fmt.Println(ctx.Err())35 }36}37import (38func main() {39 ctx := context.WithValue(context.Background(), "language", "Golang")40 fmt.Println(ctx.Value("language"))41 fmt.Println(ctx.Value("color"))42}43import (44func main() {45 ctx := context.WithValue(context.Background(), "language", "Golang")46 ctx = context.WithValue(ctx, "color", "blue")47 fmt.Println(ctx.Value("language"))48 fmt.Println(ctx.Value("color"))49}

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WithCancel

Using AI Code Generation

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1import (2func main() {3 ctx, cancel := context.WithCancel(context.Background())4 defer cancel()5 for n := range gen(ctx) {6 fmt.Println(n)7 if n == 5 {8 }9 }10}11func gen(ctx context.Context) <-chan int {12 dst := make(chan int)13 go func() {14 for {15 select {16 case <-ctx.Done():17 time.Sleep(time.Second)18 }19 }20 }()21}22import (23func main() {24 d := time.Now().Add(50 * time.Millisecond)25 ctx, cancel := context.WithDeadline(context.Background(), d)26 defer cancel()27 select {28 case <-time.After(1 * time.Second):29 fmt.Println("overslept")30 case <-ctx.Done():31 fmt.Println(ctx.Err())32 }33}34import (35func main() {36 ctx, cancel := context.WithTimeout(context.Background(), 50*time.Millisecond)37 defer cancel()38 select {39 case <-time.After(1 * time.Second):40 fmt.Println("overslept")41 case <-ctx.Done():42 fmt.Println(ctx.Err())43 }44}45import (46func main() {47 func(ctx context.Context, k favContextKey) {48 v := ctx.Value(k)49 if v == nil {50 fmt.Println("no value for key:", k)51 }52 fmt.Printf("value of %s is %s53 }(context.WithValue(context.Background(), favContextKey("animal"), "giraffe").WithValue(context.Background(), favContextKey("color"), "blue"), favContextKey("animal"))54}55import (

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WithCancel

Using AI Code Generation

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1import (2func main() {3 ctx, cancel := context.WithCancel(context.Background())4 go func() {5 time.Sleep(time.Second * 2)6 cancel()7 }()8 select {9 case <-time.After(time.Second * 3):10 fmt.Println("3 seconds passed")11 case <-ctx.Done():12 fmt.Println("Context done")13 }14}15import (16func main() {17 d := time.Now().Add(time.Second * 3)18 ctx, cancel := context.WithDeadline(context.Background(), d)19 go func() {20 time.Sleep(time.Second * 2)21 cancel()22 }()23 select {24 case <-time.After(time.Second * 5):25 fmt.Println("5 seconds passed")26 case <-ctx.Done():27 fmt.Println("Context done")28 }29}30import (31func main() {32 ctx, cancel := context.WithTimeout(context.Background(), time.Second*3)33 go func() {34 time.Sleep(time.Second * 2)35 cancel()36 }()37 select {38 case <-time.After(time.Second * 5):39 fmt.Println("5 seconds passed")40 case <-ctx.Done():41 fmt.Println("Context done")42 }43}

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WithCancel

Using AI Code Generation

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1import (2func main() {3 ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)4 browser.MustElement("input[name=q]").MustInput("rod").MustPress("Enter")5 time.Sleep(time.Second)6 cancel()7 browser.MustWaitClosed()8 _, err := browser.Element("input[name=q]").Do(ctx)9 fmt.Println(err)10}

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