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patch 9.0.2085: Vim9: abstract can be used in interface

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Problem:  Vim9: abstract can be used in interface
Solution: Disallow the use of abstract in an interface

fixes: #13456
closes: #13464

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Yegappan Lakshmanan
2023-11-02 20:57:32 +01:00
committed by Christian Brabandt
parent ef9e3f8924
commit 2b358adde0
4 changed files with 44 additions and 20 deletions
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37
src/vim9class.c
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@@ -1557,26 +1557,27 @@ early_ret:
break;
}
if (!is_class)
// ignore "abstract" in an interface (as all the methods in an
// interface are abstract.
p = skipwhite(pa + 8);
else
p = skipwhite(pa + 8);
if (STRNCMP(p, "def", 3) != 0 && STRNCMP(p, "static", 6) != 0)
{
if (!is_abstract)
{
semsg(_(e_abstract_method_in_concrete_class), pa);
break;
}
abstract_method = TRUE;
p = skipwhite(pa + 8);
if (STRNCMP(p, "def", 3) != 0)
{
emsg(_(e_abstract_must_be_followed_by_def));
break;
}
emsg(_(e_abstract_must_be_followed_by_def_or_static));
break;
}
if (!is_class)
{
// "abstract" not supported in an interface
emsg(_(e_abstract_cannot_be_used_in_interface));
break;
}
if (!is_abstract)
{
semsg(_(e_abstract_method_in_concrete_class), pa);
break;
}
abstract_method = TRUE;
}
int has_static = FALSE;