Merge pull request #23097 from zeertzjq/vim-8.2.0101

vim-patch:8.2.{0101,0102,0103,0104,0633,0634}: null typval tests

1 files changed, 10 insertions, 3 deletions

diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index 6a8b24ceed..f555d973e4 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -789,6 +789,9 @@ int eval_expr_typval(const typval_T *expr, typval_T *argv, int argc, typval_T *r
     }
   } else if (expr->v_type == VAR_PARTIAL) {
     partial_T *const partial = expr->vval.v_partial;
+    if (partial == NULL) {
+      return FAIL;
+    }
     const char *const s = partial_name(partial);
     if (s == NULL || *s == NUL) {
       return FAIL;
@@ -4056,7 +4059,10 @@ char *partial_name(partial_T *pt)
   if (pt->pt_name != NULL) {
     return pt->pt_name;
   }
-  return pt->pt_func->uf_name;
+  if (pt->pt_func != NULL) {
+    return pt->pt_func->uf_name;
+  }
+  return "";
 }
 
 static void partial_free(partial_T *pt)
@@ -8640,8 +8646,9 @@ int typval_compare(typval_T *typ1, typval_T *typ2, exprtype_T type, bool ic)
     }
     if ((typ1->v_type == VAR_PARTIAL && typ1->vval.v_partial == NULL)
         || (typ2->v_type == VAR_PARTIAL && typ2->vval.v_partial == NULL)) {
-      // when a partial is NULL assume not equal
-      n1 = false;
+      // When both partials are NULL, then they are equal.
+      // Otherwise they are not equal.
+      n1 = (typ1->vval.v_partial == typ2->vval.v_partial);
     } else if (type_is) {
       if (typ1->v_type == VAR_FUNC && typ2->v_type == VAR_FUNC) {
         // strings are considered the same if their value is