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patch 8.2.2157: Vim9: can delete a Vim9 script variable from a function

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Problem:    Vim9: can delete a Vim9 script variable from a function.
Solution:   Check the variable is defined in Vim9 script. (closes #7483)
This commit is contained in:
Bram Moolenaar
2020-12-18 15:38:00 +01:00
parent b5b77378bc
commit 9aed729fe9
3 changed files with 20 additions and 0 deletions
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10
src/evalvars.c
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@@ -1663,10 +1663,20 @@ do_unlet(char_u *name, int forceit)
dict_T *d;
dictitem_T *di;
// can't :unlet a script variable in Vim9 script
if (in_vim9script() && check_vim9_unlet(name) == FAIL)
return FAIL;
ht = find_var_ht(name, &varname);
// can't :unlet a script variable in Vim9 script from a function
if (ht == get_script_local_ht()
&& SCRIPT_ID_VALID(current_sctx.sc_sid)
&& SCRIPT_ITEM(current_sctx.sc_sid)->sn_version
== SCRIPT_VERSION_VIM9
&& check_vim9_unlet(name) == FAIL)
return FAIL;
if (ht != NULL && *varname != NUL)
{
d = get_current_funccal_dict(ht);