diff --git a/vendor/github.com/modern-go/reflect2/unsafe_array.go b/vendor/github.com/modern-go/reflect2/unsafe_array.go
new file mode 100644
index 0000000..76cbdba
--- /dev/null
+++ b/vendor/github.com/modern-go/reflect2/unsafe_array.go
@@ -0,0 +1,65 @@
+package reflect2
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+type UnsafeArrayType struct {
+	unsafeType
+	elemRType  unsafe.Pointer
+	pElemRType unsafe.Pointer
+	elemSize   uintptr
+	likePtr    bool
+}
+
+func newUnsafeArrayType(cfg *frozenConfig, type1 reflect.Type) *UnsafeArrayType {
+	return &UnsafeArrayType{
+		unsafeType: *newUnsafeType(cfg, type1),
+		elemRType:  unpackEFace(type1.Elem()).data,
+		pElemRType: unpackEFace(reflect.PtrTo(type1.Elem())).data,
+		elemSize:   type1.Elem().Size(),
+		likePtr:    likePtrType(type1),
+	}
+}
+
+func (type2 *UnsafeArrayType) LikePtr() bool {
+	return type2.likePtr
+}
+
+func (type2 *UnsafeArrayType) Indirect(obj interface{}) interface{} {
+	objEFace := unpackEFace(obj)
+	assertType("Type.Indirect argument 1", type2.ptrRType, objEFace.rtype)
+	return type2.UnsafeIndirect(objEFace.data)
+}
+
+func (type2 *UnsafeArrayType) UnsafeIndirect(ptr unsafe.Pointer) interface{} {
+	if type2.likePtr {
+		return packEFace(type2.rtype, *(*unsafe.Pointer)(ptr))
+	}
+	return packEFace(type2.rtype, ptr)
+}
+
+func (type2 *UnsafeArrayType) SetIndex(obj interface{}, index int, elem interface{}) {
+	objEFace := unpackEFace(obj)
+	assertType("ArrayType.SetIndex argument 1", type2.ptrRType, objEFace.rtype)
+	elemEFace := unpackEFace(elem)
+	assertType("ArrayType.SetIndex argument 3", type2.pElemRType, elemEFace.rtype)
+	type2.UnsafeSetIndex(objEFace.data, index, elemEFace.data)
+}
+
+func (type2 *UnsafeArrayType) UnsafeSetIndex(obj unsafe.Pointer, index int, elem unsafe.Pointer) {
+	elemPtr := arrayAt(obj, index, type2.elemSize, "i < s.Len")
+	typedmemmove(type2.elemRType, elemPtr, elem)
+}
+
+func (type2 *UnsafeArrayType) GetIndex(obj interface{}, index int) interface{} {
+	objEFace := unpackEFace(obj)
+	assertType("ArrayType.GetIndex argument 1", type2.ptrRType, objEFace.rtype)
+	elemPtr := type2.UnsafeGetIndex(objEFace.data, index)
+	return packEFace(type2.pElemRType, elemPtr)
+}
+
+func (type2 *UnsafeArrayType) UnsafeGetIndex(obj unsafe.Pointer, index int) unsafe.Pointer {
+	return arrayAt(obj, index, type2.elemSize, "i < s.Len")
+}