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patch 9.0.1977: Vim9: object members can change type

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Problem:  Vim9: object members can change type
Solution: Check type during assignment to object/class var

closes: #13127
closes: #13262

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
This commit is contained in:
Yegappan Lakshmanan
2023-10-04 19:47:52 +02:00
committed by Christian Brabandt
parent b9a974df9e
commit fe7b20a1a3
6 changed files with 462 additions and 11 deletions
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13
src/vim9compile.c
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@@ -1766,6 +1766,9 @@ compile_lhs(
}
lhs->lhs_dest = dest_class_member;
lhs->lhs_class = cctx->ctx_ufunc->uf_class;
lhs->lhs_type =
class_member_type_by_idx(cctx->ctx_ufunc->uf_class,
FALSE, lhs->lhs_classmember_idx);
}
else
{
@@ -3308,7 +3311,15 @@ compile_def_function(
}
type_T *type = get_type_on_stack(&cctx, 0);
if (m->ocm_type->tt_type != type->tt_type)
if (m->ocm_type->tt_type == VAR_ANY
&& !m->ocm_has_type
&& type->tt_type != VAR_SPECIAL)
{
// If the member variable type is not yet set, then use
// the initialization expression type.
m->ocm_type = type;
}
else if (m->ocm_type->tt_type != type->tt_type)
{
// The type of the member initialization expression is
// determined at run time. Add a runtime type check.