func SliceDelete(slice []interface{}, index int, count int) (result []interface{}) {
switch {
case count < 0:
panic(errs.Format("Negative count %d not allowed", count))
case count == 0:
return slice
}
length := len(slice)
errs.PanicIfErrIndexOutOfBounds("SliceDelete", index, length)
if index+count > length {
count = length - index
}
return append(slice[:index], slice[index+count:]...)
}
func SliceInsert(slice []interface{}, index int, count int, value interface{}) (result []interface{}) {
switch {
case count < 0:
panic(errs.Format("Negative count %d not allowed", count))
case count == 0:
return slice
}
length := len(slice)
errs.PanicIfErrIndexOutOfBounds("SliceInsert", index, length)
result = make([]interface{}, length+count)
copy(result, slice[:index])
copy(result[index+count:], slice[index:])
for i := index; i < index+count; i++ {
result[i] = value
}
return result
}