1 files changed, 9 insertions, 0 deletions
diff --git a/src/nvim/eval/typval.c b/src/nvim/eval/typval.c
index ba2c23ffe8..1ff90dd201 100644
--- a/src/nvim/eval/typval.c
+++ b/src/nvim/eval/typval.c
@@ -33,6 +33,7 @@
 #include "nvim/message.h"
 #include "nvim/os/input.h"
 #include "nvim/pos.h"
+#include "nvim/strings.h"
 #include "nvim/types.h"
 #include "nvim/vim.h"
 
@@ -49,6 +50,14 @@ typedef struct {
   bool item_compare_func_err;
 } sortinfo_T;
 
+/// Structure representing one list item, used for sort array.
+typedef struct {
+  listitem_T *item;  ///< Sorted list item.
+  int idx;  ///< Sorted list item index.
+} ListSortItem;
+
+typedef int (*ListSorter)(const void *, const void *);
+
 #ifdef INCLUDE_GENERATED_DECLARATIONS
 # include "eval/typval.c.generated.h"
 #endif