commit 2b358adde079d7cc8a7f42fcd5627866641c9a59
author Yegappan Lakshmanan <yegappan@yahoo.com> Thu Nov 02 20:57:32 2023 +0100
committer Christian Brabandt <cb@256bit.org> Thu Nov 02 20:58:58 2023 +0100
tree cfd3290e4dc63d6866d779960b234c6c3989ca0b
parent ef9e3f8924363939ff45fa385f50f57146ff365c

patch 9.0.2085: Vim9: abstract can be used in interface

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>

src/testdir/test_vim9_class.vim

diff --git a/src/testdir/test_vim9_class.vim b/src/testdir/test_vim9_class.vim
index b3d9841..1f639e2 100644
--- a/src/testdir/test_vim9_class.vim
+++ b/src/testdir/test_vim9_class.vim
@@ -5567,7 +5567,26 @@
       enddef
     endclass
   END
-  v9.CheckSourceSuccess(lines)
+  v9.CheckSourceFailure(lines, 'E1404: Abstract cannot be used in an interface', 3)
+
+  # Use abstract static method in an interface
+  lines =<< trim END
+    vim9script
+    interface A
+      abstract static def Foo()
+      enddef
+    endinterface
+  END
+  v9.CheckSourceFailure(lines, 'E1404: Abstract cannot be used in an interface', 3)
+
+  # Use abstract static variable in an interface
+  lines =<< trim END
+    vim9script
+    interface A
+      abstract static foo: number = 10
+    endinterface
+  END
+  v9.CheckSourceFailure(lines, 'E1404: Abstract cannot be used in an interface', 3)
 
   # Abbreviate the "abstract" keyword
   lines =<< trim END