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patch 8.2.0973: Vim9: type is not checked when assigning to a script variable

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Problem:    Vim9: type is not checked when assigning to a script variable.
Solution:   Check the type.
This commit is contained in:
Bram Moolenaar
2020-06-13 19:00:10 +02:00
parent c82a5b5da5
commit 34db91f7a4
7 changed files with 51 additions and 8 deletions
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25
src/vim9script.c
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@@ -488,5 +488,30 @@ vim9_declare_scriptvar(exarg_T *eap, char_u *arg)
return p;
}
/*
* Check if the type of script variable "dest" allows assigning "value".
*/
void
check_script_var_type(typval_T *dest, typval_T *value, char_u *name)
{
scriptitem_T *si = SCRIPT_ITEM(current_sctx.sc_sid);
int idx;
// Find the svar_T in sn_var_vals.
for (idx = 0; idx < si->sn_var_vals.ga_len; ++idx)
{
svar_T *sv = ((svar_T *)si->sn_var_vals.ga_data) + idx;
if (sv->sv_tv == dest)
{
if (sv->sv_const)
semsg(_(e_readonlyvar), name);
else
check_type(sv->sv_type, typval2type(value), TRUE);
return;
}
}
iemsg("check_script_var_type(): not found");
}
#endif // FEAT_EVAL