fix: 切片为空时过滤结果：{}->[]

Author: liu-cn

filter/parser.go

@@ -305,14 +305,13 @@ func parserSliceOrArray(typeOf reflect.Type, valueOf reflect.Value, t *fieldNode
 			return
 		}
 	}
-
+	t.IsSlice = true
 	l := valueOf.Len()
 	if l == 0 {
 		t.Val = emptySlice
 		return
 	}
 
-	t.IsSlice = true
 	for i := 0; i < l; i++ {
 		sliceIsNil := false
 		node := &fieldNodeTree{

test/main.go

@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"github.com/liu-cn/json-filter/filter"
-	"time"
 )
 
 func mustJson(v interface{}) string {
@@ -88,10 +87,13 @@ func goSelect() {
 }
 
 func main() {
-
+	//var testSlice = []int{}
+	var testSlice = []Article{}
+	j, _ := json.Marshal(filter.Select("t", testSlice))
+	fmt.Println(string(j))
 	//goOmit()
-	goSelect()
-	time.Sleep(time.Second * 10)
+	//goSelect()
+	//time.Sleep(time.Second * 10)
 	//var bb = []byte(`{"a":"1"}`)
 	//u := Us{
 	//	BB:         [3]byte{1, 2, 4},