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patch 8.2.1924: Vim9: crash when indexing dict with NULL key

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Problem:    Vim9: crash when indexing dict with NULL key.
Solution:   Use empty string instead of NULL. (closes #7229)  Make error
            message more useful for empty string.
This commit is contained in:
Bram Moolenaar
2020-10-30 18:33:02 +01:00
parent 4f6b6ed208
commit 086fc9a585
4 changed files with 6 additions and 1 deletions
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2
src/vim9execute.c
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@@ -2607,6 +2607,8 @@ call_def_function(
tv = STACK_TV_BOT(-1);
// no need to check for VAR_STRING, 2STRING will check.
key = tv->vval.v_string;
if (key == NULL)
key = (char_u *)"";
if ((di = dict_find(dict, key, -1)) == NULL)
{