How to use SetAnchorsPersist method of anchors Package

Best Go-testdeep code snippet using anchors.SetAnchorsPersist

t_anchor.go

Source:t_anchor.go Github

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...38// It panics if the provided fn is not a function or if it has not the39// expected signature (see above).40//41// See also [T.Anchor], [T.AnchorsPersistTemporarily],42// [T.DoAnchorsPersist], [T.ResetAnchors] and [T.SetAnchorsPersist].43func AddAnchorableStructType(fn any) {44 err := anchors.AddAnchorableStructType(fn)45 if err != nil {46 panic(color.Bad(err.Error()))47 }48}49// Anchor returns a typed value allowing to anchor the TestDeep50// operator operator in a go classic literal like a struct, slice,51// array or map value.52//53// If the TypeBehind method of operator returns non-nil, model can be54// omitted (like with [Between] operator in the example55// below). Otherwise, model should contain only one value56// corresponding to the returning type. It can be:57// - a go value: returning type is the type of the value,58// whatever the value is;59// - a [reflect.Type].60//61// It returns a typed value ready to be embed in a go data structure to62// be compared using [T.Cmp] or [T.CmpLax]:63//64// import (65// "testing"66//67// "github.com/maxatome/go-testdeep/td"68// )69//70// func TestFunc(tt *testing.T) {71// got := Func()72//73// t := td.NewT(tt)74// t.Cmp(got, &MyStruct{75// Name: "Bob",76// Details: &MyDetails{77// Nick: t.Anchor(td.HasPrefix("Bobby"), "").(string),78// Age: t.Anchor(td.Between(40, 50)).(int),79// },80// })81// }82//83// In this example:84//85// - [HasPrefix] operates on several input types (string,86// [fmt.Stringer], error, …), so its TypeBehind method returns always87// nil as it can not guess in advance on which type it operates. In88// this case, we must pass "" as model parameter in order to tell it89// to return the string type. Note that the .(string) type assertion90// is then mandatory to conform to the strict type checking.91// - [Between], on its side, knows the type on which it operates, as92// it is the same as the one of its parameters. So its TypeBehind93// method returns the right type, and so no need to pass it as model94// parameter. Note that the .(int) type assertion is still mandatory95// to conform to the strict type checking.96//97// Without operator anchoring feature, the previous example would have98// been:99//100// import (101// "testing"102//103// "github.com/maxatome/go-testdeep/td"104// )105//106// func TestFunc(tt *testing.T) {107// got := Func()108//109// t := td.NewT(tt)110// t.Cmp(got, td.Struct(&MyStruct{Name: "Bob"},111// td.StructFields{112// "Details": td.Struct(&MyDetails{},113// td.StructFields{114// "Nick": td.HasPrefix("Bobby"),115// "Age": td.Between(40, 50),116// }),117// }))118// }119//120// using two times the [Struct] operator to work around the strict type121// checking of golang.122//123// By default, the value returned by Anchor can only be used in the124// next [T.Cmp] or [T.CmpLax] call. To make it persistent across calls,125// see [T.SetAnchorsPersist] and [T.AnchorsPersistTemporarily] methods.126//127// See [T.A] method for a shorter synonym of Anchor.128//129// See also [T.AnchorsPersistTemporarily], [T.DoAnchorsPersist],130// [T.ResetAnchors], [T.SetAnchorsPersist] and [AddAnchorableStructType].131func (t *T) Anchor(operator TestDeep, model ...any) any {132 if operator == nil {133 t.Helper()134 t.Fatal(color.Bad("Cannot anchor a nil TestDeep operator"))135 }136 var typ reflect.Type137 if len(model) > 0 {138 if len(model) != 1 {139 t.Helper()140 t.Fatal(color.TooManyParams("Anchor(OPERATOR[, MODEL])"))141 }142 var ok bool143 typ, ok = model[0].(reflect.Type)144 if !ok {145 typ = reflect.TypeOf(model[0])146 if typ == nil {147 t.Helper()148 t.Fatal(color.Bad("Untyped nil value is not valid as model for an anchor"))149 }150 }151 typeBehind := operator.TypeBehind()152 if typeBehind != nil && typeBehind != typ {153 t.Helper()154 t.Fatal(color.Bad("Operator %s TypeBehind() returned %s which differs from model type %s. Omit model or ensure its type is %[2]s",155 operator.GetLocation().Func, typeBehind, typ))156 }157 } else {158 typ = operator.TypeBehind()159 if typ == nil {160 t.Helper()161 t.Fatal(color.Bad("Cannot anchor operator %s as TypeBehind() returned nil. Use model parameter to specify the type to return",162 operator.GetLocation().Func))163 }164 }165 nvm, err := t.Config.anchors.AddAnchor(typ, reflect.ValueOf(operator))166 if err != nil {167 t.Helper()168 t.Fatal(color.Bad(err.Error()))169 }170 return nvm.Interface()171}172// A is a synonym for [T.Anchor].173//174// import (175// "testing"176//177// "github.com/maxatome/go-testdeep/td"178// )179//180// func TestFunc(tt *testing.T) {181// got := Func()182//183// t := td.NewT(tt)184// t.Cmp(got, &MyStruct{185// Name: "Bob",186// Details: &MyDetails{187// Nick: t.A(td.HasPrefix("Bobby"), "").(string),188// Age: t.A(td.Between(40, 50)).(int),189// },190// })191// }192//193// See also [T.AnchorsPersistTemporarily], [T.DoAnchorsPersist],194// [T.ResetAnchors], [T.SetAnchorsPersist] and [AddAnchorableStructType].195func (t *T) A(operator TestDeep, model ...any) any {196 t.Helper()197 return t.Anchor(operator, model...)198}199func (t *T) resetNonPersistentAnchors() {200 t.Config.anchors.ResetAnchors(false)201}202// ResetAnchors frees all operators anchored with [T.Anchor]203// method. Unless operators anchoring persistence has been enabled204// with [T.SetAnchorsPersist], there is no need to call this205// method. Anchored operators are automatically freed after each [Cmp],206// [CmpDeeply] and [CmpPanic] call (or others methods calling them behind207// the scene).208//209// See also [T.Anchor], [T.AnchorsPersistTemporarily],210// [T.DoAnchorsPersist], [T.SetAnchorsPersist] and [AddAnchorableStructType].211func (t *T) ResetAnchors() {212 t.Config.anchors.ResetAnchors(true)213}214// AnchorsPersistTemporarily is used by helpers to temporarily enable215// anchors persistence. See [tdhttp] package for an example of use. It216// returns a function to be deferred, to restore the normal behavior217// (clear anchored operators if persistence was false, do nothing218// otherwise).219//220// Typically used as:221//222// defer t.AnchorsPersistTemporarily()()223// // or224// t.Cleanup(t.AnchorsPersistTemporarily())225//226// See also [T.Anchor], [T.DoAnchorsPersist], [T.ResetAnchors],227// [T.SetAnchorsPersist] and [AddAnchorableStructType].228//229// [tdhttp]: https://pkg.go.dev/github.com/maxatome/go-testdeep/helpers/tdhttp230func (t *T) AnchorsPersistTemporarily() func() {231 // If already persistent, do nothing on defer232 if t.DoAnchorsPersist() {233 return func() {}234 }235 t.SetAnchorsPersist(true)236 return func() {237 t.SetAnchorsPersist(false)238 t.Config.anchors.ResetAnchors(true)239 }240}241// DoAnchorsPersist returns true if anchors persistence is enabled,242// false otherwise.243//244// See also [T.Anchor], [T.AnchorsPersistTemporarily],245// [T.ResetAnchors], [T.SetAnchorsPersist] and [AddAnchorableStructType].246func (t *T) DoAnchorsPersist() bool {247 return t.Config.anchors.DoAnchorsPersist()248}249// SetAnchorsPersist allows to enable or disable anchors persistence.250//251// See also [T.Anchor], [T.AnchorsPersistTemporarily],252// [T.DoAnchorsPersist], [T.ResetAnchors] and [AddAnchorableStructType].253func (t *T) SetAnchorsPersist(persist bool) {254 t.Config.anchors.SetAnchorsPersist(persist)255}256func (t *T) initAnchors() {257 if t.Config.anchors != nil {258 return259 }260 name := t.Name()261 allAnchorsMu.Lock()262 defer allAnchorsMu.Unlock()263 t.Config.anchors = allAnchors[name]264 if t.Config.anchors == nil {265 t.Config.anchors = anchors.NewInfo()266 allAnchors[name] = t.Config.anchors267 // Do not record a finalizer if no name (should not happen268 // except perhaps in tests)...

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anchor.go

Source:anchor.go Github

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...51 i.Lock()52 defer i.Unlock()53 return i.persist54}55// SetAnchorsPersist enables or disables anchors persistence.56func (i *Info) SetAnchorsPersist(persist bool) {57 i.Lock()58 defer i.Unlock()59 i.persist = persist60}61// ResetAnchors removes all anchors if persistence is disabled or62// force is true.63func (i *Info) ResetAnchors(force bool) {64 i.Lock()65 defer i.Unlock()66 if !i.persist || force {67 for k := range i.anchors {68 delete(i.anchors, k)69 }70 i.index = 0...

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anchor_test.go

Source:anchor_test.go Github

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...13)14func TestInfo(t *testing.T) {15 i := anchors.NewInfo()16 test.IsFalse(t, i.DoAnchorsPersist())17 i.SetAnchorsPersist(true)18 test.IsTrue(t, i.DoAnchorsPersist())19 i.SetAnchorsPersist(false)20 test.IsFalse(t, i.DoAnchorsPersist())21}22func TestBuildResolveAnchor(t *testing.T) {23 var i anchors.Info24 checkResolveAnchor := func(t *testing.T, val any, opName string) {25 t.Helper()26 v1, err := i.AddAnchor(reflect.TypeOf(val), reflect.ValueOf(opName+" (1)"))27 if !test.NoError(t, err, "first anchor") {28 return29 }30 v2, err := i.AddAnchor(reflect.TypeOf(val), reflect.ValueOf(opName+" (2)"))31 if !test.NoError(t, err, "second anchor") {32 return33 }34 op, found := i.ResolveAnchor(v1)35 test.IsTrue(t, found, "first anchor found")36 test.EqualStr(t, op.String(), opName+" (1)", "first anchor operator OK")37 op, found = i.ResolveAnchor(v2)38 test.IsTrue(t, found, "second anchor found")39 test.EqualStr(t, op.String(), opName+" (2)", "second anchor operator OK")40 }41 t.Run("AddAnchor basic types", func(t *testing.T) {42 checkResolveAnchor(t, 0, "int")43 checkResolveAnchor(t, int8(0), "int8")44 checkResolveAnchor(t, int16(0), "int16")45 checkResolveAnchor(t, int32(0), "int32")46 checkResolveAnchor(t, int64(0), "int64")47 checkResolveAnchor(t, uint(0), "uint")48 checkResolveAnchor(t, uint8(0), "uint8")49 checkResolveAnchor(t, uint16(0), "uint16")50 checkResolveAnchor(t, uint32(0), "uint32")51 checkResolveAnchor(t, uint64(0), "uint64")52 checkResolveAnchor(t, uintptr(0), "uintptr")53 checkResolveAnchor(t, float32(0), "float32")54 checkResolveAnchor(t, float64(0), "float64")55 checkResolveAnchor(t, complex(float32(0), 0), "complex64")56 checkResolveAnchor(t, complex(float64(0), 0), "complex128")57 checkResolveAnchor(t, "", "string")58 checkResolveAnchor(t, (chan int)(nil), "chan")59 checkResolveAnchor(t, (map[string]bool)(nil), "map")60 checkResolveAnchor(t, ([]int)(nil), "slice")61 checkResolveAnchor(t, (*time.Time)(nil), "pointer")62 })63 t.Run("AddAnchor", func(t *testing.T) {64 oldAnchorableTypes := anchors.AnchorableTypes65 defer func() { anchors.AnchorableTypes = oldAnchorableTypes }()66 type ok struct{ index int }67 // AddAnchor for ok type68 err := anchors.AddAnchorableStructType(func(nextAnchor int) ok {69 return ok{index: 1000 + nextAnchor}70 })71 if err != nil {72 t.Fatalf("AddAnchorableStructType failed: %s", err)73 }74 checkResolveAnchor(t, ok{}, "ok{}")75 // AddAnchor for ok convertible type76 type okConvert ok77 checkResolveAnchor(t, okConvert{}, "okConvert{}")78 // Replace ok type79 err = anchors.AddAnchorableStructType(func(nextAnchor int) ok {80 return ok{index: 2000 + nextAnchor}81 })82 if err != nil {83 t.Fatalf("AddAnchorableStructType failed: %s", err)84 }85 if len(anchors.AnchorableTypes) != 2 {86 t.Fatalf("Bad number of anchored type: got=%d expected=2",87 len(anchors.AnchorableTypes))88 }89 checkResolveAnchor(t, ok{}, "ok{}")90 // AddAnchor for builtin time.Time type91 checkResolveAnchor(t, time.Time{}, "time.Time{}")92 // AddAnchor for unknown type93 _, err = i.AddAnchor(reflect.TypeOf(func() {}), reflect.ValueOf(123))94 if test.Error(t, err) {95 test.EqualStr(t, err.Error(), "func kind is not supported as an anchor")96 }97 // AddAnchor for unknown struct type98 _, err = i.AddAnchor(reflect.TypeOf(struct{}{}), reflect.ValueOf(123))99 if test.Error(t, err) {100 test.EqualStr(t,101 err.Error(),102 "struct {} struct type is not supported as an anchor. Try AddAnchorableStructType")103 }104 // Struct not comparable105 type notComparable struct{ s []int }106 v := reflect.ValueOf(notComparable{s: []int{42}})107 op, found := i.ResolveAnchor(v)108 test.IsFalse(t, found)109 if !reflect.DeepEqual(v.Interface(), op.Interface()) {110 test.EqualErrorMessage(t, op.Interface(), v.Interface())111 }112 // Struct comparable but not anchored113 v = reflect.ValueOf(struct{}{})114 op, found = i.ResolveAnchor(v)115 test.IsFalse(t, found)116 if !reflect.DeepEqual(v.Interface(), op.Interface()) {117 test.EqualErrorMessage(t, op.Interface(), v.Interface())118 }119 // Struct anchored once, but not for this value120 v = reflect.ValueOf(ok{index: 42424242})121 op, found = i.ResolveAnchor(v)122 test.IsFalse(t, found)123 if !reflect.DeepEqual(v.Interface(), op.Interface()) {124 test.EqualErrorMessage(t, op.Interface(), v.Interface())125 }126 // Kind not supported127 v = reflect.ValueOf(true)128 op, found = i.ResolveAnchor(v)129 test.IsFalse(t, found)130 if !reflect.DeepEqual(v.Interface(), op.Interface()) {131 test.EqualErrorMessage(t, op.Interface(), v.Interface())132 }133 })134 t.Run("ResetAnchors", func(t *testing.T) {135 v, err := i.AddAnchor(reflect.TypeOf(12), reflect.ValueOf("zip"))136 if !test.NoError(t, err) {137 return138 }139 op, found := i.ResolveAnchor(v)140 test.IsTrue(t, found)141 test.EqualStr(t, op.String(), "zip")142 i.SetAnchorsPersist(true)143 i.ResetAnchors(false)144 op, found = i.ResolveAnchor(v)145 test.IsTrue(t, found)146 test.EqualStr(t, op.String(), "zip")147 i.ResetAnchors(true)148 _, found = i.ResolveAnchor(reflect.ValueOf(42))149 test.IsFalse(t, found)150 i.SetAnchorsPersist(false)151 v, err = i.AddAnchor(reflect.TypeOf(12), reflect.ValueOf("xxx"))152 if !test.NoError(t, err) {153 return154 }155 op, found = i.ResolveAnchor(v)156 test.IsTrue(t, found)157 test.EqualStr(t, op.String(), "xxx")158 i.ResetAnchors(false)159 _, found = i.ResolveAnchor(reflect.ValueOf(42))160 test.IsFalse(t, found)161 })162 t.Run("skip", func(t *testing.T) {163 var i *anchors.Info164 _, found := i.ResolveAnchor(reflect.ValueOf(42))...

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SetAnchorsPersist

Using AI Code Generation

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1import (2func main() {3 f, err := excelize.OpenFile("Book1.xlsx")4 if err != nil {5 fmt.Println(err)6 }7 f.SetAnchorsPersist("Sheet1", "A1", true)8 err = f.SaveAs("Book1.xlsx")9 if err != nil {10 fmt.Println(err)11 }12}

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SetAnchorsPersist

Using AI Code Generation

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1import (2func main() {3 f, err := excelize.OpenFile("Book1.xlsx")4 if err != nil {5 fmt.Println(err)6 }7 f.SetAnchorsPersist("Sheet1", "A1", "C3", true)8 if err := f.SaveAs("Book1.xlsx"); err != nil {9 fmt.Println(err)10 }11}12import (13func main() {14 f, err := excelize.OpenFile("Book1.xlsx")15 if err != nil {16 fmt.Println(err)17 }18 f.SetAnchorsPersist("Sheet1", "A1", "C3", false)19 if err := f.SaveAs("Book1.xlsx"); err != nil {20 fmt.Println(err)21 }22}23import (24func main() {25 f, err := excelize.OpenFile("Book1.xlsx")26 if err != nil {27 fmt.Println(err)28 }29 f.SetAnchorsPersist("Sheet1", "A1", "C3", true)30 if err := f.SaveAs("Book1.xlsx"); err != nil {31 fmt.Println(err)32 }33}

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SetAnchorsPersist

Using AI Code Generation

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1import (2func main() {3 xlsx := excelize.NewFile()4 index := xlsx.NewSheet("Sheet2")5 xlsx.SetCellValue("Sheet2", "A2", "Hello world.")6 xlsx.SetCellValue("Sheet2", "B2", 100)7 xlsx.SetActiveSheet(index)8 err := xlsx.SaveAs("Book2.xlsx")9 if err != nil {10 fmt.Println(err)11 }12}

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SetAnchorsPersist

Using AI Code Generation

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1import (2func main() {3 f := excelize.NewFile()4 index := f.NewSheet("Sheet2")5 f.SetCellValue("Sheet2", "A2", "Hello world.")6 f.SetCellValue("Sheet2", "B2", 100)7 f.SetActiveSheet(index)8 err := f.SaveAs("Book2.xlsx")9 if err != nil {10 fmt.Println(err)11 }12}13import (14func main() {15 f, err := excelize.OpenFile("Book1.xlsx")16 if err != nil {17 fmt.Println(err)18 }19 cell, err := f.GetCellValue("Sheet1", "B2")20 if err != nil {21 fmt.Println(err)22 }23 fmt.Println(cell)24 index := f.GetSheetIndex("Sheet1")25 fmt.Println(index)26 rows, err := f.GetRows("Sheet1")27 for _, row := range rows {28 for _, colCell := range row {29 fmt.Print(colCell, "\t")30 }31 fmt.Println()32 }33}34import (35func main() {36 f, err := excelize.OpenFile("Book1.xlsx")37 if err != nil {38 fmt.Println(err)39 }40 cell, err := f.GetCellValue("Sheet1", "B2")41 if err != nil {42 fmt.Println(err)43 }44 fmt.Println(cell)

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SetAnchorsPersist

Using AI Code Generation

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1import (2func main() {3 xlsx, err := excelize.OpenFile("Book1.xlsx")4 if err != nil {5 fmt.Println(err)6 os.Exit(1)7 }8 xlsx.SetAnchorsPersist("Sheet1", "A1", true)9 err = xlsx.Save()10 if err != nil {11 fmt.Println(err)12 }13}14import (15func main() {16 xlsx, err := excelize.OpenFile("Book1.xlsx")17 if err != nil {18 fmt.Println(err)19 os.Exit(1)20 }21 xlsx.SetAnchorsPersist("Sheet1", "A1", false)22 err = xlsx.Save()23 if err != nil {24 fmt.Println(err)25 }26}27import (28func main() {29 xlsx, err := excelize.OpenFile("Book1.xlsx")30 if err != nil {31 fmt.Println(err)32 os.Exit(1)33 }34 xlsx.SetAnchorsPersist("Sheet1", "A1", true)35 err = xlsx.SaveAs("Book1.xlsx")36 if err != nil {37 fmt.Println(err)38 }39}40import (41func main() {42 xlsx, err := excelize.OpenFile("Book1.xlsx")43 if err != nil {44 fmt.Println(err)45 os.Exit(1)46 }47 xlsx.SetAnchorsPersist("Sheet

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SetAnchorsPersist

Using AI Code Generation

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1import (2func main() {3 f := excelize.NewFile()4 index := f.NewSheet("Sheet2")5 f.SetCellValue("Sheet2", "A2", "Hello world.")6 f.SetCellValue("Sheet2", "B2", 100)7 f.SetActiveSheet(index)8 err := f.SaveAs("Book2.xlsx")9 if err != nil {10 fmt.Println(err)11 }12 f.SetAnchorsPersist("Sheet2")13 err = f.SaveAs("Book2.xlsx")14 if err != nil {15 fmt.Println(err)16 }17}18import (19func main() {20 f := excelize.NewFile()21 index := f.NewSheet("Sheet2")22 f.SetCellValue("Sheet2", "A2", "Hello world.")23 f.SetCellValue("Sheet2", "B2", 100)24 f.SetActiveSheet(index)25 err := f.SaveAs("Book2.xlsx")26 if err != nil {27 fmt.Println(err)28 }29 f.SetColWidth("Sheet2", "A", "B", 20)30 err = f.SaveAs("Book2.xlsx")31 if err != nil {32 fmt.Println(err)33 }34}35import (36func main() {37 f := excelize.NewFile()38 index := f.NewSheet("Sheet2")39 f.SetCellValue("Sheet2", "A2", "Hello world.")40 f.SetCellValue("Sheet

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SetAnchorsPersist

Using AI Code Generation

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1import (2func main() {3 xlsx := excelize.NewFile()4 xlsx.SetAnchorsPersist("Sheet1", "A1", true)5 if err := xlsx.SaveAs("Book1.xlsx"); err != nil {6 fmt.Println(err)7 }8}9import (10func main() {11 xlsx := excelize.NewFile()12 xlsx.SetAnchorsPersist("Sheet1", "A1", false)13 if err := xlsx.SaveAs("Book1.xlsx"); err != nil {14 fmt.Println(err)15 }16}17import (18func main() {19 xlsx := excelize.NewFile()20 xlsx.SetAnchorsPersist("Sheet1", "A1", true)21 if err := xlsx.SaveAs("Book1.xlsx"); err != nil {22 fmt.Println(err)23 }24}25import (26func main() {27 xlsx := excelize.NewFile()28 xlsx.SetAnchorsPersist("Sheet1", "A1", false)29 if err := xlsx.SaveAs("Book1.xlsx"); err != nil {30 fmt.Println(err)31 }32}

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SetAnchorsPersist

Using AI Code Generation

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1import (2func main() {3 doc, err := document.Open("test.docx")4 if err != nil {5 fmt.Println("Error reading document:", err)6 }7 para := doc.AddParagraph()8 para.SetAnchorsPersist(true)9 run := para.AddRun()10 run.AddText("This is a paragraph with anchors persist property set to true")11 doc.SaveToFile("test.docx")12}13import (14func main() {15 doc, err := document.Open("test.docx")16 if err != nil {17 fmt.Println("Error reading document:", err)18 }19 para := doc.AddParagraph()20 para.SetAnchorsPersist(false)21 run := para.AddRun()22 run.AddText("This is a paragraph with anchors persist property set to false")23 doc.SaveToFile("test.docx")24}25import (26func main() {27 doc, err := document.Open("test.docx")28 if err != nil {29 fmt.Println("Error reading document:", err)30 }31 para := doc.AddParagraph()32 para.SetAnchorsPersist(true)33 run := para.AddRun()34 run.AddText("This is a paragraph with anchors persist property set to true")35 doc.SaveToFile("test.docx")36 para = doc.AddParagraph()37 para.SetAnchorsPersist(false)38 run = para.AddRun()39 run.AddText("This is a paragraph with anchors persist property set to false")40 doc.SaveToFile("test.docx")41 para = doc.AddParagraph()42 para.SetAnchorsPersist(true)43 run = para.AddRun()44 run.AddText("This is a paragraph

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SetAnchorsPersist

Using AI Code Generation

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1import (2func main() {3 file, err := os.Open("index.html")4 if err != nil {5 log.Fatal(err)6 }7 defer file.Close()8 doc, err := htmlquery.Parse(file)9 if err != nil {10 log.Fatal(err)11 }12 if err != nil {13 log.Fatal(err)14 }15 results := expr.Evaluate(htmlquery.CreateXPathNavigator(doc))16 for results.MoveNext() {17 fmt.Println(results.Current().Value())18 }19}20import (21func main() {22 file, err := os.Open("index.html")23 if err != nil {24 log.Fatal(err)25 }26 defer file.Close()27 doc, err := htmlquery.Parse(file)28 if err != nil {29 log.Fatal(err)30 }31 if err != nil {32 log.Fatal(err)33 }34 results := expr.Evaluate(htmlquery.CreateXPathNavigator(doc))35 for results.MoveNext() {36 fmt.Println(results.Current().Value())37 }38}39import (40func main() {41 file, err := os.Open("index.html")42 if err != nil {43 log.Fatal(err)44 }45 defer file.Close()46 doc, err := htmlquery.Parse(file)47 if err != nil {48 log.Fatal(err)49 }

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