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diff src/eval.c @ 15762:dff66c4670b1 v8.1.0888

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patch 8.1.0888: the a: dict is not immutable as documented commit https://github.com/vim/vim/commit/31b816042fca879b11965ddd75287732563ba698 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Feb 10 22:14:27 2019 +0100 patch 8.1.0888: the a: dict is not immutable as documented Problem: The a: dict is not immutable as documented. Solution: Make the a:dict immutable, add a test. (Ozaki Kiichi, Yasuhiro Matsumoto, closes #3929)
author Bram Moolenaar <Bram@vim.org>
date Sun, 10 Feb 2019 22:15:05 +0100
parents 6f1c7e9a6393
children 77e97f159554
line wrap: on
line diff
--- a/src/eval.c
+++ b/src/eval.c
@@ -2092,14 +2092,15 @@ get_lval(
 
 	    if (lp->ll_di == NULL)
 	    {
-		/* Can't add "v:" variable. */
-		if (lp->ll_dict == &vimvardict)
+		// Can't add "v:" or "a:" variable.
+		if (lp->ll_dict == &vimvardict
+			 || &lp->ll_dict->dv_hashtab == get_funccal_args_ht())
 		{
 		    semsg(_(e_illvar), name);
 		    return NULL;
 		}
 
-		/* Key does not exist in dict: may need to add it. */
+		// Key does not exist in dict: may need to add it.
 		if (*p == '[' || *p == '.' || unlet)
 		{
 		    if (!quiet)
@@ -7919,14 +7920,14 @@ set_var(
     }
     else		    /* add a new variable */
     {
-	/* Can't add "v:" variable. */
-	if (ht == &vimvarht)
+	// Can't add "v:" or "a:" variable.
+	if (ht == &vimvarht || ht == get_funccal_args_ht())
 	{
 	    semsg(_(e_illvar), name);
 	    return;
 	}
 
-	/* Make sure the variable name is valid. */
+	// Make sure the variable name is valid.
 	if (!valid_varname(varname))
 	    return;