vim-patch:8.1.1820: using expr->FuncRef() does not work

Problem:    Using expr->FuncRef() does not work.
Solution:   Make FuncRef work as a method.
https://github.com/vim/vim/commit/761fdf01c6e307c448cec2684f8b315ba6d1f454

1 files changed, 7 insertions, 4 deletions

diff --git a/src/nvim/eval/userfunc.c b/src/nvim/eval/userfunc.c
index 3c0c0091f2..9ecde327de 100644
--- a/src/nvim/eval/userfunc.c
+++ b/src/nvim/eval/userfunc.c
@@ -1450,6 +1450,7 @@ call_func(
   typval_T argv[MAX_FUNC_ARGS + 1];  // used when "partial" or
                                      // "funcexe->basetv" is not NULL
   int argv_clear = 0;
+  int argv_base = 0;
   partial_T *partial = funcexe->partial;
 
   // Initialize rettv so that it is safe for caller to invoke clear_tv(rettv)
@@ -1550,8 +1551,8 @@ call_func(
           memmove(&argv[1], argvars, sizeof(typval_T) * argcount);
           argv[0] = *funcexe->basetv;
           argcount++;
-        } else {
-          memcpy(argv, argvars, sizeof(typval_T) * argcount);
+          argvars = argv;
+          argv_base = 1;
         }
 
         if (fp->uf_flags & FC_RANGE && funcexe->doesrange != NULL) {
@@ -1565,7 +1566,7 @@ call_func(
           error = ERROR_DICT;
         } else {
           // Call the user function.
-          call_user_func(fp, argcount, argv, rettv, funcexe->firstline,
+          call_user_func(fp, argcount, argvars, rettv, funcexe->firstline,
                          funcexe->lastline,
                          (fp->uf_flags & FC_DICT) ? selfdict : NULL);
           error = ERROR_NONE;
@@ -1602,9 +1603,11 @@ theend:
     user_func_error(error, (name != NULL) ? name : funcname);
   }
 
+  // clear the copies made from the partial
   while (argv_clear > 0) {
-    tv_clear(&argv[--argv_clear]);
+    tv_clear(&argv[--argv_clear + argv_base]);
   }
+
   xfree(tofree);
   xfree(name);