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list.go
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list.go
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package funcmaps
import (
"container/list"
"reflect"
"github.com/ikeikeikeike/shuffler"
)
func List(l *list.List) chan interface{} {
e := l.Front()
c := make(chan interface{})
go func() {
for e != nil {
c <- e.Value
e = e.Next()
}
close(c)
}()
return c
}
func Shuffle(in interface{}) (list []interface{}) {
elems := shuffler.Shuffler(in).(reflect.Value)
for i := 0; i < elems.Len(); i++ {
list = append(list, elems.Index(i).Interface())
}
return list
}
func Reverse(in interface{}) (list []interface{}) {
elems := reverser(in).(reflect.Value)
for i := 0; i < elems.Len(); i++ {
list = append(list, elems.Index(i).Interface())
}
return list
}
func Slice(in interface{}, from, to int) (list []interface{}) {
elems := slicer(in, from, to).(reflect.Value)
for i := 0; i < elems.Len(); i++ {
list = append(list, elems.Index(i).Interface())
}
return list
}
func slicer(src interface{}, from, to int) interface{} {
s := reflect.ValueOf(src)
t := reflect.TypeOf(src)
dest := reflect.MakeSlice(reflect.SliceOf(t.Elem()), 0, 0)
for i := s.Len() - 1; i >= 0; i-- {
if from <= i && i <= to {
dest = reflect.Append(dest, s.Index(i))
}
}
return dest
}
func reverser(src interface{}) interface{} {
s := reflect.ValueOf(src)
t := reflect.TypeOf(src)
dest := reflect.MakeSlice(reflect.SliceOf(t.Elem()), 0, 0)
for i := s.Len() - 1; i >= 0; i-- {
dest = reflect.Append(dest, s.Index(i))
}
return dest
}