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/*
{4} ({1} and []{1})
--------------------------------------------------
*/
// {4} gets the value as a {1}, returns the optionalDefault
// value or a system default object if the value is the wrong type.
func (v *Value) {4}(optionalDefault ...{1}) {1} {
if s, ok := v.data.({1}); ok {
return s
}
if len(optionalDefault) == 1 {
return optionalDefault[0]
}
return {3}
}
// Must{4} gets the value as a {1}.
//
// Panics if the object is not a {1}.
func (v *Value) Must{4}() {1} {
return v.data.({1})
}
// {4}Slice gets the value as a []{1}, returns the optionalDefault
// value or nil if the value is not a []{1}.
func (v *Value) {4}Slice(optionalDefault ...[]{1}) []{1} {
if s, ok := v.data.([]{1}); ok {
return s
}
if len(optionalDefault) == 1 {
return optionalDefault[0]
}
return nil
}
// Must{4}Slice gets the value as a []{1}.
//
// Panics if the object is not a []{1}.
func (v *Value) Must{4}Slice() []{1} {
return v.data.([]{1})
}
// Is{4} gets whether the object contained is a {1} or not.
func (v *Value) Is{4}() bool {
_, ok := v.data.({1})
return ok
}
// Is{4}Slice gets whether the object contained is a []{1} or not.
func (v *Value) Is{4}Slice() bool {
_, ok := v.data.([]{1})
return ok
}
// Each{4} calls the specified callback for each object
// in the []{1}.
//
// Panics if the object is the wrong type.
func (v *Value) Each{4}(callback func(int, {1}) bool) *Value {
for index, val := range v.Must{4}Slice() {
carryon := callback(index, val)
if carryon == false {
break
}
}
return v
}
// Where{4} uses the specified decider function to select items
// from the []{1}. The object contained in the result will contain
// only the selected items.
func (v *Value) Where{4}(decider func(int, {1}) bool) *Value {
var selected []{1}
v.Each{4}(func(index int, val {1}) bool {
shouldSelect := decider(index, val)
if shouldSelect == false {
selected = append(selected, val)
}
return true
})
return &Value{data:selected}
}
// Group{4} uses the specified grouper function to group the items
// keyed by the return of the grouper. The object contained in the
// result will contain a map[string][]{1}.
func (v *Value) Group{4}(grouper func(int, {1}) string) *Value {
groups := make(map[string][]{1})
v.Each{4}(func(index int, val {1}) bool {
group := grouper(index, val)
if _, ok := groups[group]; !ok {
groups[group] = make([]{1}, 0)
}
groups[group] = append(groups[group], val)
return true
})
return &Value{data:groups}
}
// Replace{4} uses the specified function to replace each {1}s
// by iterating each item. The data in the returned result will be a
// []{1} containing the replaced items.
func (v *Value) Replace{4}(replacer func(int, {1}) {1}) *Value {
arr := v.Must{4}Slice()
replaced := make([]{1}, len(arr))
v.Each{4}(func(index int, val {1}) bool {
replaced[index] = replacer(index, val)
return true
})
return &Value{data:replaced}
}
// Collect{4} uses the specified collector function to collect a value
// for each of the {1}s in the slice. The data returned will be a
// []interface{}.
func (v *Value) Collect{4}(collector func(int, {1}) interface{}) *Value {
arr := v.Must{4}Slice()
collected := make([]interface{}, len(arr))
v.Each{4}(func(index int, val {1}) bool {
collected[index] = collector(index, val)
return true
})
return &Value{data:collected}
}
// ************************************************************
// TESTS
// ************************************************************
func Test{4}(t *testing.T) {
val := {1}( {2} )
m := map[string]interface{}{"value": val, "nothing": nil}
assert.Equal(t, val, New(m).Get("value").{4}())
assert.Equal(t, val, New(m).Get("value").Must{4}())
assert.Equal(t, {1}({3}), New(m).Get("nothing").{4}())
assert.Equal(t, val, New(m).Get("nothing").{4}({2}))
assert.Panics(t, func() {
New(m).Get("age").Must{4}()
})
}
func Test{4}Slice(t *testing.T) {
val := {1}( {2} )
m := map[string]interface{}{"value": []{1}{ val }, "nothing": nil}
assert.Equal(t, val, New(m).Get("value").{4}Slice()[0])
assert.Equal(t, val, New(m).Get("value").Must{4}Slice()[0])
assert.Equal(t, []{1}(nil), New(m).Get("nothing").{4}Slice())
assert.Equal(t, val, New(m).Get("nothing").{4}Slice( []{1}{ {1}({2}) } )[0])
assert.Panics(t, func() {
New(m).Get("nothing").Must{4}Slice()
})
}
func TestIs{4}(t *testing.T) {
var v *Value
v = &Value{data: {1}({2})}
assert.True(t, v.Is{4}())
v = &Value{data: []{1}{ {1}({2}) }}
assert.True(t, v.Is{4}Slice())
}
func TestEach{4}(t *testing.T) {
v := &Value{data: []{1}{ {1}({2}), {1}({2}), {1}({2}), {1}({2}), {1}({2}) }}
count := 0
replacedVals := make([]{1}, 0)
assert.Equal(t, v, v.Each{4}(func(i int, val {1}) bool {
count++
replacedVals = append(replacedVals, val)
// abort early
if i == 2 {
return false
}
return true
}))
assert.Equal(t, count, 3)
assert.Equal(t, replacedVals[0], v.Must{4}Slice()[0])
assert.Equal(t, replacedVals[1], v.Must{4}Slice()[1])
assert.Equal(t, replacedVals[2], v.Must{4}Slice()[2])
}
func TestWhere{4}(t *testing.T) {
v := &Value{data: []{1}{ {1}({2}), {1}({2}), {1}({2}), {1}({2}), {1}({2}), {1}({2}) }}
selected := v.Where{4}(func(i int, val {1}) bool {
return i%2==0
}).Must{4}Slice()
assert.Equal(t, 3, len(selected))
}
func TestGroup{4}(t *testing.T) {
v := &Value{data: []{1}{ {1}({2}), {1}({2}), {1}({2}), {1}({2}), {1}({2}), {1}({2}) }}
grouped := v.Group{4}(func(i int, val {1}) string {
return fmt.Sprintf("%v", i%2==0)
}).data.(map[string][]{1})
assert.Equal(t, 2, len(grouped))
assert.Equal(t, 3, len(grouped["true"]))
assert.Equal(t, 3, len(grouped["false"]))
}
func TestReplace{4}(t *testing.T) {
v := &Value{data: []{1}{ {1}({2}), {1}({2}), {1}({2}), {1}({2}), {1}({2}), {1}({2}) }}
rawArr := v.Must{4}Slice()
replaced := v.Replace{4}(func(index int, val {1}) {1} {
if index < len(rawArr)-1 {
return rawArr[index+1]
}
return rawArr[0]
})
replacedArr := replaced.Must{4}Slice()
if assert.Equal(t, 6, len(replacedArr)) {
assert.Equal(t, replacedArr[0], rawArr[1])
assert.Equal(t, replacedArr[1], rawArr[2])
assert.Equal(t, replacedArr[2], rawArr[3])
assert.Equal(t, replacedArr[3], rawArr[4])
assert.Equal(t, replacedArr[4], rawArr[5])
assert.Equal(t, replacedArr[5], rawArr[0])
}
}
func TestCollect{4}(t *testing.T) {
v := &Value{data: []{1}{ {1}({2}), {1}({2}), {1}({2}), {1}({2}), {1}({2}), {1}({2}) }}
collected := v.Collect{4}(func(index int, val {1}) interface{} {
return index
})
collectedArr := collected.MustInterSlice()
if assert.Equal(t, 6, len(collectedArr)) {
assert.Equal(t, collectedArr[0], 0)
assert.Equal(t, collectedArr[1], 1)
assert.Equal(t, collectedArr[2], 2)
assert.Equal(t, collectedArr[3], 3)
assert.Equal(t, collectedArr[4], 4)
assert.Equal(t, collectedArr[5], 5)
}
}
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