update:use builtin cmp func (#4879)

core/breaker/breaker.go

@@ -8,7 +8,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/zeromicro/go-zero/core/mathx"
 	"github.com/zeromicro/go-zero/core/proc"
 	"github.com/zeromicro/go-zero/core/stat"
 	"github.com/zeromicro/go-zero/core/stringx"
@@ -264,7 +263,7 @@ func (ew *errorWindow) add(reason string) {
 	ew.lock.Lock()
 	ew.reasons[ew.index] = fmt.Sprintf("%s %s", time.Now().Format(timeFormat), reason)
 	ew.index = (ew.index + 1) % numHistoryReasons
-	ew.count = mathx.MinInt(ew.count+1, numHistoryReasons)
+	ew.count = min(ew.count+1, numHistoryReasons)
 	ew.lock.Unlock()
 }
 

core/mathx/int.go

@@ -1,19 +1,13 @@
 package mathx
 
 // MaxInt returns the larger one of a and b.
+// Deprecated: use builtin max instead.
 func MaxInt(a, b int) int {
-	if a > b {
-		return a
-	}
-
-	return b
+	return max(a, b)
 }
 
 // MinInt returns the smaller one of a and b.
+// Deprecated: use builtin min instead.
 func MinInt(a, b int) int {
-	if a < b {
-		return a
-	}
-
-	return b
+	return min(a, b)
 }

core/utils/version.go

@@ -1,10 +1,10 @@
 package utils
 
 import (
+	"cmp"
 	"strconv"
 	"strings"
 
-	"github.com/zeromicro/go-zero/core/mathx"
 	"github.com/zeromicro/go-zero/core/stringx"
 )
 
@@ -39,7 +39,7 @@ func compare(v1, v2 string) int {
 	fields1, fields2 := strings.Split(v1, "."), strings.Split(v2, ".")
 	ver1, ver2 := strsToInts(fields1), strsToInts(fields2)
 	ver1len, ver2len := len(ver1), len(ver2)
-	shorter := mathx.MinInt(ver1len, ver2len)
+	shorter := min(ver1len, ver2len)
 
 	for i := 0; i < shorter; i++ {
 		if ver1[i] == ver2[i] {
@@ -50,14 +50,7 @@ func compare(v1, v2 string) int {
 			return 1
 		}
 	}
-
-	if ver1len < ver2len {
-		return -1
-	} else if ver1len == ver2len {
-		return 0
-	} else {
-		return 1
-	}
+	return cmp.Compare(ver1len, ver2len)
 }
 
 func strsToInts(strs []string) []int64 {

zrpc/resolver/internal/directbuilder_test.go

@@ -10,7 +10,6 @@ import (
 
 	"github.com/stretchr/testify/assert"
 	"github.com/zeromicro/go-zero/core/lang"
-	"github.com/zeromicro/go-zero/core/mathx"
 	"google.golang.org/grpc/resolver"
 )
 
@@ -47,7 +46,7 @@ func TestDirectBuilder_Build(t *testing.T) {
 			}, cc, resolver.BuildOptions{})
 			assert.NoError(t, err)
 
-			size := mathx.MinInt(test, subsetSize)
+			size := min(test, subsetSize)
 			assert.Equal(t, size, len(cc.state.Addresses))
 			m := make(map[string]lang.PlaceholderType)
 			for _, each := range cc.state.Addresses {