mirror of https://github.com/miguelmota/cointop
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
41 lines
1003 B
Go
41 lines
1003 B
Go
// Package slice provides a slice sorting function.
|
|
package slice
|
|
|
|
import (
|
|
"fmt"
|
|
"reflect"
|
|
"sort"
|
|
|
|
"go4.org/reflectutil"
|
|
)
|
|
|
|
// Sort sorts the provided slice using the function less.
|
|
// If slice is not a slice, Sort panics.
|
|
func Sort(slice interface{}, less func(i, j int) bool) {
|
|
sort.Sort(SortInterface(slice, less))
|
|
}
|
|
|
|
// SortInterface returns a sort.Interface to sort the provided slice
|
|
// using the function less.
|
|
func SortInterface(slice interface{}, less func(i, j int) bool) sort.Interface {
|
|
sv := reflect.ValueOf(slice)
|
|
if sv.Kind() != reflect.Slice {
|
|
panic(fmt.Sprintf("slice.Sort called with non-slice value of type %T", slice))
|
|
}
|
|
return &funcs{
|
|
length: sv.Len(),
|
|
less: less,
|
|
swap: reflectutil.Swapper(slice),
|
|
}
|
|
}
|
|
|
|
type funcs struct {
|
|
length int
|
|
less func(i, j int) bool
|
|
swap func(i, j int)
|
|
}
|
|
|
|
func (f *funcs) Len() int { return f.length }
|
|
func (f *funcs) Less(i, j int) bool { return f.less(i, j) }
|
|
func (f *funcs) Swap(i, j int) { f.swap(i, j) }
|