commit 3a3b10e87a10dd0bc355618dbfc4a0a6c828aad7
author Bram Moolenaar <Bram@vim.org> Sat Jun 26 15:00:59 2021 +0200
committer Bram Moolenaar <Bram@vim.org> Sat Jun 26 15:00:59 2021 +0200
tree e74e88f7d0cbf28ff9d9af3ae9a371348656cdfa
parent 4d5dfe20839e9d13c95eaf4254467f952653b042

patch 8.2.3055: strange error for assigning to "x.key" on non-dictionary

Problem:    Strange error for assigning to "x.key" on non-dictionary.
Solution:   Add a specific error message. (closes #8451)

src/eval.c

diff --git a/src/eval.c b/src/eval.c
index 33ea850..7704d46 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -924,8 +924,14 @@
     lp->ll_tv = &v->di_tv;
     var1.v_type = VAR_UNKNOWN;
     var2.v_type = VAR_UNKNOWN;
-    while (*p == '[' || (*p == '.' && lp->ll_tv->v_type == VAR_DICT))
+    while (*p == '[' || (*p == '.' && p[1] != '=' && p[1] != '.'))
     {
+	if (*p == '.' && lp->ll_tv->v_type != VAR_DICT)
+	{
+	    if (!quiet)
+		semsg(_(e_dot_can_only_be_used_on_dictionary_str), name);
+	    return NULL;
+	}
 	if (!(lp->ll_tv->v_type == VAR_LIST && lp->ll_tv->vval.v_list != NULL)
 		&& !(lp->ll_tv->v_type == VAR_DICT)
 		&& !(lp->ll_tv->v_type == VAR_BLOB