How to use init method of anchors Package

Best Go-testdeep code snippet using anchors.init

decay.go

Source:decay.go Github

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1package main2import (3 "fmt"4 "math"5 "sort"6)7// ================== current decay ==================8func GetExponentialDecayScore(bookedDays int) float64 {9 return 1 * math.Exp(-1*0.001*float64(bookedDays))10}11func testLessThan(val float64, upper float64) string {12 if val >= upper {13 return fmt.Sprintf("ERROR: value %f not less than %f", val, upper)14 }15 return fmt.Sprintf("SUCCESS: value %f less than %f", val, upper)16}17func testGreaterThan(val float64, lower float64) string {18 if val <= lower {19 return fmt.Sprintf("ERROR: value %f not greater than %f", val, lower)20 }21 return fmt.Sprintf("SUCCESS: value %f greater than %f", val, lower)22}23func testIsBetween(val float64, lower float64, upper float64) string {24 if val <= lower || val >= upper {25 return fmt.Sprintf("ERROR: value %f not between %f and %f", val, lower, upper)26 }27 return fmt.Sprintf("SUCCESS: value %f between %f and %f", val, lower, upper)28}29type Decayer interface {30 decay(t float64) float6431}32// ================== exponential decay ==================33type ExponentialDecay struct {34 minValue float6435 factor float6436}37func InitExponentialDecay(anchorTime uint16, anchorValue float64) ExponentialDecay {38 decay := ExponentialDecay{}39 decay.factor = math.Log(anchorValue) / float64(anchorTime)40 return decay41}42func InitExponentialDecayWithMinConstraint(anchorTime uint16, anchorValue float64, minConstraint float64) ExponentialDecay {43 decay := InitExponentialDecay(anchorTime, anchorValue)44 decay.minValue = minConstraint45 return decay46}47func (d ExponentialDecay) decay(t float64) float64 {48 return math.Min(1, math.Max(math.Exp(d.factor*t), d.minValue))49}50func testExponentialDecay() {51 exponentialDecay := InitExponentialDecayWithMinConstraint(2, 0.5, 0.2)52 fmt.Println("exponentialDecay.decay(1)", testIsBetween(exponentialDecay.decay(1), 0.70, 0.71))53}54// ================== logistic decay ==================55type Anchor struct {56 t float6457 x float6458 y float6459}60type LogisticDecay struct {61 anchors []Anchor62 maxTime float6463}64func InitLogisticDecay(anchors ...Anchor) LogisticDecay {65 decay := LogisticDecay{}66 decay.maxTime = 999967 decay.anchors = make([]Anchor, len(anchors)+2)68 decay.anchors[0] = Anchor{69 t: 0,70 x: -11.5, // log(1/.99999 - 1)71 y: 1}72 for i := 0; i < len(anchors); i++ {73 anchor := anchors[i]74 if anchor.x == 0 {75 anchor.x = math.Log(1/anchor.y - 1)76 }77 decay.anchors[i+1] = anchor78 }79 decay.anchors[len(decay.anchors)-1] = Anchor{80 t: decay.maxTime,81 x: 11.5, // log(1/.00001 - 1)82 y: 0}83 return decay84}85func InitLogisticDecayWithMaxTime(maxTime float64, anchors ...Anchor) LogisticDecay {86 decay := InitLogisticDecay(anchors...)87 decay.maxTime = maxTime88 return decay89}90func (d LogisticDecay) decay(t float64) float64 {91 T := math.Min(t, d.maxTime)92 i := 193 for i < len(d.anchors) {94 if T <= d.anchors[i].t {95 break96 }97 i += 198 }99 anchor_l := d.anchors[i-1]100 anchor_h := d.anchors[i]101 x := anchor_l.x + (T-anchor_l.t)/(anchor_h.t-anchor_l.t)*(anchor_h.x-anchor_l.x)102 return 1 / (1 + math.Exp(x))103}104func testLogisticDecay() {105 logisticDecay := InitLogisticDecay(Anchor{t: 365, y: 0.9}, Anchor{t: 730, y: 0.7}, Anchor{t: 1825, y: 0.25})106 fmt.Println("logisticDecay.decay(0)", testGreaterThan(logisticDecay.decay(0), 0.9999))107 fmt.Println("logisticDecay.decay(180)", testIsBetween(logisticDecay.decay(180), 0.9, 0.9999))108 fmt.Println("logisticDecay.decay(365)", testIsBetween(logisticDecay.decay(365), 0.89, 0.91))109 fmt.Println("logisticDecay.decay(500)", testIsBetween(logisticDecay.decay(500), 0.7, 0.9))110 fmt.Println("logisticDecay.decay(730)", testIsBetween(logisticDecay.decay(730), 0.69, 0.71))111 fmt.Println("logisticDecay.decay(1000)", testIsBetween(logisticDecay.decay(1000), 0.25, 0.7))112 fmt.Println("logisticDecay.decay(1825)", testIsBetween(logisticDecay.decay(1825), 0.24, 0.26))113 fmt.Println("logisticDecay.decay(2000)", testIsBetween(logisticDecay.decay(2000), 0, 0.25))114}115// ================== piecewise linear decay ==================116type LinearFunction struct {117 m float64118 c float64119}120func (l LinearFunction) compute(x float64) float64 {121 return l.m*x + l.c122}123type PiecewiseRange struct {124 lower float64125 upper float64126 function LinearFunction127}128type PiecewiseLinearDecay struct {129 ranges []PiecewiseRange130}131func InitPiecewiseLinearDecay(anchors ...Anchor) PiecewiseLinearDecay {132 if anchors[0].x != 0 {133 anchors = append([]Anchor{Anchor{x: 0, y: 1}}, anchors...)134 }135 sort.Slice(anchors, func(i, j int) bool {136 return anchors[i].x < anchors[j].x137 })138 ranges := make([]PiecewiseRange, len(anchors))139 var anchor_l, anchor_h Anchor140 i := 0141 for ; i < (len(anchors) - 1); i++ {142 anchor_l = anchors[i]143 anchor_h = anchors[i+1]144 ranges[i] = getPiecewiseRange(anchor_l, anchor_h)145 }146 ranges[i] = getPiecewiseRange(anchor_h, Anchor{x: math.Inf(0), y: anchor_h.y})147 return PiecewiseLinearDecay{ranges}148}149func getPiecewiseRange(anchor_l Anchor, anchor_h Anchor) PiecewiseRange {150 r := PiecewiseRange{}151 r.lower = anchor_l.x152 r.upper = anchor_h.x153 r.function = getLinearFunction(anchor_l, anchor_h)154 return r155}156func getLinearFunction(anchor_l Anchor, anchor_h Anchor) LinearFunction {157 lf := LinearFunction{}158 lf.m = (anchor_h.y - anchor_l.y) / (anchor_h.x - anchor_l.x)159 lf.c = anchor_l.y - (lf.m * anchor_l.x)160 return lf161}162func (d PiecewiseLinearDecay) decay(t float64) float64 {163 for i := 0; i < len(d.ranges); i++ {164 if t >= d.ranges[i].lower && t <= d.ranges[i].upper {165 return d.ranges[i].function.compute(t)166 }167 }168 return 0169}170func testPiecewiseLinearDecay() {171 piecewiseLinearDecay := InitPiecewiseLinearDecay(Anchor{x: 90, y: 0.99}, Anchor{x: 180, y: 0.5}, Anchor{x: 270, y: 0.5}, Anchor{x: 365, y: 0.75}, Anchor{x: 366, y: 0.1})172 fmt.Println("piecewiseLinearDecay.decay(0)", testGreaterThan(piecewiseLinearDecay.decay(0), 0.9999))173 fmt.Println("piecewiseLinearDecay.decay(45)", testIsBetween(piecewiseLinearDecay.decay(45), 0.99, 1))174 fmt.Println("piecewiseLinearDecay.decay(90)", testIsBetween(piecewiseLinearDecay.decay(90), 0.98, 0.999))175 fmt.Println("piecewiseLinearDecay.decay(100)", testIsBetween(piecewiseLinearDecay.decay(100), 0.5, 0.99))176 fmt.Println("piecewiseLinearDecay.decay(180)", testIsBetween(piecewiseLinearDecay.decay(180), 0.49, 0.51))177 fmt.Println("piecewiseLinearDecay.decay(300)", testIsBetween(piecewiseLinearDecay.decay(300), 0.5, 0.75))178 fmt.Println("piecewiseLinearDecay.decay(365)", testIsBetween(piecewiseLinearDecay.decay(365), 0.749, 0.751))179 fmt.Println("piecewiseLinearDecay.decay(400)", testIsBetween(piecewiseLinearDecay.decay(400), 0.09, 0.11))180}181// ================== main ==================182var piecewiseLinearDecay = InitPiecewiseLinearDecay(Anchor{x: 1, y: 0.95}, Anchor{x: 2, y: 0.9}, Anchor{x: 7, y: 0.3}, Anchor{x: 8, y: 0.01})183func decay(t float64, algo string) float64 {184 switch algo {185 case "current":186 return GetExponentialDecayScore(int(t))187 case "pld":188 return piecewiseLinearDecay.decay(t)189 default:190 return GetExponentialDecayScore(int(t))191 }192}193func main() {194 testExponentialDecay()195 testLogisticDecay()196 testPiecewiseLinearDecay()197 fmt.Println("current decay", decay(2, "current"))198 fmt.Println("new decay", decay(2, "pld"))199}...

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trackers.go

Source:trackers.go Github

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...14 sync.RWMutex15 anchors map[string][]*fields.QualifiedHash16 hidden IDSet17}18// init initializes the underlying data structures.19func (h *HiddenTracker) init() {20 if h.anchors == nil {21 h.anchors = make(map[string][]*fields.QualifiedHash)22 }23}24// IsHidden returns whether the provided node should be hidden.25func (h *HiddenTracker) IsHidden(id *fields.QualifiedHash) bool {26 h.RLock()27 defer h.RUnlock()28 return h.isHidden(id)29}30func (h *HiddenTracker) isHidden(id *fields.QualifiedHash) bool {31 return h.hidden.Contains(id)32}33// IsAnchor returns whether the provided node is serving as an anchor34// that hides its descendants.35func (h *HiddenTracker) IsAnchor(id *fields.QualifiedHash) bool {36 h.RLock()37 defer h.RUnlock()38 return h.isAnchor(id)39}40func (h *HiddenTracker) isAnchor(id *fields.QualifiedHash) bool {41 _, ok := h.anchors[id.String()]42 return ok43}44// NumDescendants returns the number of hidden descendants for the given anchor45// node.46func (h *HiddenTracker) NumDescendants(id *fields.QualifiedHash) int {47 h.RLock()48 defer h.RUnlock()49 return h.numDescendants(id)50}51func (h *HiddenTracker) numDescendants(id *fields.QualifiedHash) int {52 return len(h.anchors[id.String()])53}54// ToggleAnchor switches the anchor state of the given ID.55func (h *HiddenTracker) ToggleAnchor(id *fields.QualifiedHash, s store.ExtendedStore) error {56 h.Lock()57 defer h.Unlock()58 return h.toggleAnchor(id, s)59}60func (h *HiddenTracker) toggleAnchor(id *fields.QualifiedHash, s store.ExtendedStore) error {61 if h.isAnchor(id) {62 h.reveal(id)63 return nil64 }65 return h.hide(id, s)66}67// Hide makes the given ID into an anchor and hides its descendants.68func (h *HiddenTracker) Hide(id *fields.QualifiedHash, s store.ExtendedStore) error {69 h.Lock()70 defer h.Unlock()71 return h.hide(id, s)72}73func (h *HiddenTracker) hide(id *fields.QualifiedHash, s store.ExtendedStore) error {74 h.init()75 descendants, err := s.DescendantsOf(id)76 if err != nil {77 return fmt.Errorf("failed looking up descendants of %s: %w", id.String(), err)78 }79 // ensure that any descendants that were previously hidden are subsumed by80 // hiding their ancestor.81 for _, d := range descendants {82 if _, ok := h.anchors[d.String()]; ok {83 delete(h.anchors, d.String())84 }85 }86 h.anchors[id.String()] = descendants87 h.hidden.Add(descendants...)88 return nil89}90// Process ensures that the internal state of the HiddenTracker accounts91// for the provided node. This is primarily useful for nodes that were inserted92// into the store *after* their ancestor was made into an anchor. Each time93// a new node is received, it should be Process()ed.94func (h *HiddenTracker) Process(node forest.Node) {95 h.Lock()96 defer h.Unlock()97 h.process(node)98}99func (h *HiddenTracker) process(node forest.Node) {100 if h.isHidden(node.ParentID()) || h.isAnchor(node.ParentID()) {101 h.hidden.Add(node.ID())102 }103}104// Reveal makes the given node no longer an anchor, thereby un-hiding all105// of its children.106func (h *HiddenTracker) Reveal(id *fields.QualifiedHash) {107 h.Lock()108 defer h.Unlock()109 h.Reveal(id)110}111func (h *HiddenTracker) reveal(id *fields.QualifiedHash) {112 h.init()113 descendants, ok := h.anchors[id.String()]114 if !ok {115 return116 }117 h.hidden.Remove(descendants...)118 delete(h.anchors, id.String())119}120// IDSet implements basic set operations on node IDs. It is not safe for121// concurrent use.122type IDSet struct {123 contents map[string]struct{}124}125// init allocates the underlying map type.126func (h *IDSet) init() {127 h.contents = make(map[string]struct{})128}129// Add inserts the list of IDs into the set.130func (h *IDSet) Add(ids ...*fields.QualifiedHash) {131 if h.contents == nil {132 h.init()133 }134 for _, id := range ids {135 h.contents[id.String()] = struct{}{}136 }137}138// Contains returns whether the given ID is in the set.139func (h *IDSet) Contains(id *fields.QualifiedHash) bool {140 if h.contents == nil {141 h.init()142 }143 _, contains := h.contents[id.String()]144 return contains145}146// Remove deletes the provided IDs from the set.147func (h *IDSet) Remove(ids ...*fields.QualifiedHash) {148 if h.contents == nil {149 h.init()150 }151 for _, id := range ids {152 if h.Contains(id) {153 delete(h.contents, id.String())154 }155 }156}...

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casing_of_anchors.go

Source:casing_of_anchors.go Github

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...5import (6 "regexp"7 "go.fuchsia.dev/fuchsia/tools/mdlint/core"8)9func init() {10 core.RegisterLintRuleOverTokens(casingOfAnchorsName, newCasingOfAnchors)11}12const casingOfAnchorsName = "casing-of-anchors"13type casingOfAnchors struct {14 core.DefaultLintRuleOverTokens15 reporter core.Reporter16}17var _ core.LintRuleOverTokens = (*casingOfAnchors)(nil)18func newCasingOfAnchors(reporter core.Reporter) core.LintRuleOverTokens {19 return &casingOfAnchors{reporter: reporter}20}21var casingOfAnchorsRe = regexp.MustCompile("{#[a-zA-Z0-9]+([a-zA-Z0-9-]*[a-zA-Z0-9])?}")22func (rule *casingOfAnchors) OnNext(tok core.Token) {23 if tok.Kind == core.Anchor {...

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init

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1func main() {2 anchors.Init()3 fmt.Println(anchors.A)4}5func main() {6 anchors.Init()7 fmt.Println(anchors.B)8}9func main() {10 anchors.Init()11 fmt.Println(anchors.A)12}13func main() {14 anchors.Init()15 fmt.Println(anchors.B)16}17func main() {18 anchors.Init()19 fmt.Println(anchors.C)20}21func main() {22 anchors.Init()23 fmt.Println(anchors.A)24}25func main() {26 anchors.Init()27 fmt.Println(anchors.B)28}29func main() {30 anchors.Init()31 fmt.Println(anchors.C)32}

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init

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1import (2func main() {3 fmt.Println("main")4}5import (6func init() {7 fmt.Println("init")8}9import (10func main() {11 fmt.Println("main")12}13The init() function cannot be

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init

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1import (2func main() {3 fmt.Println("Hello, playground")4 anchors := new(Anchor)5 anchors.init()6}7import (8func main() {9 fmt.Println("Hello, playground")10 anchors := new(Anchor)11 anchors.init()12}13import (14func main() {15 fmt.Println("Hello, playground")16 anchors := new(Anchor)17 anchors.init()18}19import (20func main() {21 fmt.Println("Hello, playground")22 anchors := new(Anchor)23 anchors.init()24}25import (26func main() {27 fmt.Println("Hello, playground")28 anchors := new(Anchor)29 anchors.init()30}31import (32func main() {33 fmt.Println("Hello, playground")34 anchors := new(Anchor)35 anchors.init()36}37import (38func main() {39 fmt.Println("Hello, playground")40 anchors := new(Anchor)41 anchors.init()42}43import (44func main() {45 fmt.Println("Hello, playground")46 anchors := new(Anchor)47 anchors.init()48}49import (50func main() {51 fmt.Println("Hello, playground")52 anchors := new(Anchor)53 anchors.init()54}55import (56func main() {57 fmt.Println("Hello, playground")58 anchors := new(Anchor)59 anchors.init()60}61import (

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init

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1import (2func main() {3 fmt.Println("Hello, Anchors!")4 anchors.Init()5}6import (7func Init() {8 fmt.Println("Anchors Initialized")9}

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init

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1import (2func main() {3 anchors.Init()4 fmt.Println("hello")5}6import (7func Init() {8 fmt.Println("anchors init")9}10import (11func Init() {12 fmt.Println("anchors init")13}14import (15func Init() {16 fmt.Println("anchors init")17}18import (19func Init() {20 fmt.Println("anchors init")21}22import (23func Init() {24 fmt.Println("anchors init")25}26import (27func Init() {28 fmt.Println("anchors init")29}30import (31func Init() {32 fmt.Println("anchors init")33}34import (35func Init() {36 fmt.Println("anchors init")37}38import (39func Init() {40 fmt.Println("anchors init")41}42import (43func Init() {44 fmt.Println("anchors init")45}46import (47func Init() {48 fmt.Println("anchors init")49}50import (51func Init() {52 fmt.Println("anchors init")53}54import (55func Init() {56 fmt.Println("anchors init")57}58import (59func Init() {60 fmt.Println("anchors init")61}62import (63func Init() {64 fmt.Println("anchors init")65}

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init

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1import "fmt"2import "github.com/anchors/anchors"3func main() {4 fmt.Println("Hello, Anchors!")5 fmt.Println(anchors.GetAnchors())6}7import "fmt"8import "github.com/anchors/anchors"9func init() {10 fmt.Println("Hello, Anchors!")11}12func GetAnchors() string {13}

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init

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1anchors.init()2anchors.init()3“anchors.init undefined (type *anchors has no field or method init)”4I am trying to build a simple go server, and I am trying to use the http.HandleFunc() function to handle the request. I am getting the following error:5import (6func main() {7 http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {8 fmt.Fprintf(w, "Hello World!")9 })10 http.ListenAndServe(":8080", nil)11}12I am trying to create a simple Go server, and I am trying to use the http.HandleFunc() function to handle the request. I am getting the following error:13import (14func main() {15 http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {16 fmt.Fprintf(w, "Hello World!")17 })18 http.ListenAndServe(":8080", nil)19}20I am trying to create a simple Go server, and I am trying to use the http.HandleFunc() function to handle the request. I am getting the following error:21import (22func main() {23 http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {24 fmt.Fprintf(w, "Hello World!")25 })26 http.ListenAndServe(":8080", nil)27}28I am trying to create a simple Go server, and I am trying to use the http.HandleFunc() function to handle the request. I am getting the following error:

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init

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1import "fmt"2import "anchors"3func main() {4 anchors.InitAnchors()5 fmt.Println(anchors.Anchors)6}7import "fmt"8import "io/ioutil"9import "strings"10import "strconv"11func InitAnchors() {12 data, err := ioutil.ReadFile("anchors.txt")13 if err != nil {14 fmt.Println("File reading error", err)15 }16 lines := strings.Split(string(data), "17 for i := 0; i < len(lines); i++ {18 line := strings.Split(lines[i], ",")19 x, err := strconv.Atoi(line[0])20 if err != nil {21 fmt.Println("Error converting to integer", err)22 }23 y, err := strconv.Atoi(line[1])24 if err != nil {25 fmt.Println("Error converting to integer", err)26 }27 Anchors = append(Anchors, [2]int{x, y})28 }29}

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