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patch 9.0.1824: Vim9: private members may be modifiable

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Problem:  Vim9: private members may be modifiable
Solution: prevent modification for def function

closes: #12963

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
This commit is contained in:
Yegappan Lakshmanan
2023-08-30 16:38:26 +02:00
committed by Christian Brabandt
parent 9d8ef7cc43
commit 5bbcfbc4a2
3 changed files with 44 additions and 0 deletions
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9
src/vim9compile.c
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@@ -1866,6 +1866,15 @@ compile_lhs(
{
// for an object or class member get the type of the member
class_T *cl = lhs->lhs_type->tt_class;
// If it is private member variable, then accessing it outside the
// class is not allowed.
if (*(after + 1) == '_' && !inside_class(cctx, cl))
{
char_u *m_name = vim_strnsave(after + 1, lhs->lhs_end - after);
semsg(_(e_cannot_access_private_member_str), m_name);
vim_free(m_name);
return FAIL;
}
lhs->lhs_member_type = class_member_type(cl, after + 1,
lhs->lhs_end, &lhs->lhs_member_idx);
if (lhs->lhs_member_idx < 0)