Merge pull request 'move sort.Uniq to dedicated package' (#327) from utilsort into v3

Reviewed-on: #327
This commit is contained in:
Василий Толстов 2024-03-27 11:25:50 +03:00
commit bf4a036652
2 changed files with 40 additions and 36 deletions

View File

@ -3,8 +3,6 @@ package tracer // import "go.unistack.org/micro/v3/tracer"
import (
"context"
"fmt"
"sort"
"go.unistack.org/micro/v3/logger"
)
@ -70,37 +68,3 @@ type Span interface {
// SpanID returns span id
SpanID() string
}
// sort labels alphabeticaly by label name
type byKey []interface{}
func (k byKey) Len() int { return len(k) / 2 }
func (k byKey) Less(i, j int) bool { return fmt.Sprintf("%s", k[i*2]) < fmt.Sprintf("%s", k[j*2]) }
func (k byKey) Swap(i, j int) {
k[i*2], k[j*2] = k[j*2], k[i*2]
k[i*2+1], k[j*2+1] = k[j*2+1], k[i*2+1]
}
func UniqLabels(labels []interface{}) []interface{} {
if len(labels)%2 == 1 {
labels = labels[:len(labels)-1]
}
if len(labels) > 2 {
sort.Sort(byKey(labels))
idx := 0
for {
if labels[idx] == labels[idx+2] {
copy(labels[idx:], labels[idx+2:])
labels = labels[:len(labels)-2]
} else {
idx += 2
}
if idx+2 >= len(labels) {
break
}
}
}
return labels
}

40
util/sort/sort.go Normal file
View File

@ -0,0 +1,40 @@
package sort
import (
"fmt"
"sort"
)
// sort labels alphabeticaly by label name
type byKey []interface{}
func (k byKey) Len() int { return len(k) / 2 }
func (k byKey) Less(i, j int) bool { return fmt.Sprintf("%s", k[i*2]) < fmt.Sprintf("%s", k[j*2]) }
func (k byKey) Swap(i, j int) {
k[i*2], k[j*2] = k[j*2], k[i*2]
k[i*2+1], k[j*2+1] = k[j*2+1], k[i*2+1]
}
func Uniq(labels []interface{}) []interface{} {
if len(labels)%2 == 1 {
labels = labels[:len(labels)-1]
}
if len(labels) > 2 {
sort.Sort(byKey(labels))
idx := 0
for {
if labels[idx] == labels[idx+2] {
copy(labels[idx:], labels[idx+2:])
labels = labels[:len(labels)-2]
} else {
idx += 2
}
if idx+2 >= len(labels) {
break
}
}
}
return labels
}