From 1aa708f9a89f9d552c8dd4dbbfabedf897eb6bf2 Mon Sep 17 00:00:00 2001
From: andyning <andyning@tencent.com>
Date: Thu, 21 Nov 2019 23:02:35 +0800
Subject: [PATCH] fix the bug reflect on zero Value
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fix the bug ：reflect: call of reflect.Value.Type on zero Value

if the slice is nil， or len==0， will be panic.
the case:

type Foo struct{
	Bar[]int
}

func TestGoFunk(t *testing.T) {
	Log.InitLog()
	foo := []Foo{}
	bars := funk.Get(foo, "Bar") //panic !!
	fmt.Print(bars)
}
---
 retrieve.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/retrieve.go b/retrieve.go
index e1daeb8..e2fe751 100644
--- a/retrieve.go
+++ b/retrieve.go
@@ -21,7 +21,11 @@ func get(value reflect.Value, path string) reflect.Value {
 		var resultSlice reflect.Value
 
 		length := value.Len()
-
+		
+		if length == 0 {
+			return resultSlice
+		}
+		
 		for i := 0; i < length; i++ {
 			item := value.Index(i)