diff options
author | Yegappan Lakshmanan <yegappan@yahoo.com> | 2023-10-07 22:03:18 +0200 |
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committer | Christian Brabandt <cb@256bit.org> | 2023-10-07 22:03:18 +0200 |
commit | 1087b8c29ab521106c5b6cc85d5b38244f0d9c1d (patch) | |
tree | 115f15c629ccea8411ef839b4c184502bc2cf8ca /src/testdir/test_vim9_class.vim | |
parent | 2a281ccca017fb5e8ffd20a86aa390431224a2fd (diff) |
patch 9.0.2000: Vim9: use-after-free in deep call stackv9.0.2000
Problem: Vim9: use-after-free in deep call stack
Solution: Get the objct pointer from execution stack
closes: #13296
Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Diffstat (limited to 'src/testdir/test_vim9_class.vim')
-rw-r--r-- | src/testdir/test_vim9_class.vim | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/testdir/test_vim9_class.vim b/src/testdir/test_vim9_class.vim index 0c8fd7057a..0e70c9f6fe 100644 --- a/src/testdir/test_vim9_class.vim +++ b/src/testdir/test_vim9_class.vim @@ -6989,4 +6989,44 @@ func Test_object_variable_complex_type_check() call v9.CheckSourceSuccess(lines) endfunc +" Test for recursively calling an object method. This used to cause an +" use-after-free error. +def Test_recursive_object_method_call() + var lines =<< trim END + vim9script + class A + this.val: number = 0 + def Foo(): number + if this.val >= 90 + return this.val + endif + this.val += 1 + return this.Foo() + enddef + endclass + var a = A.new() + assert_equal(90, a.Foo()) + END + v9.CheckSourceSuccess(lines) +enddef + +" Test for recursively calling a class method. +def Test_recursive_class_method_call() + var lines =<< trim END + vim9script + class A + static val: number = 0 + static def Foo(): number + if val >= 90 + return val + endif + val += 1 + return Foo() + enddef + endclass + assert_equal(90, A.Foo()) + END + v9.CheckSourceSuccess(lines) +enddef + " vim: ts=8 sw=2 sts=2 expandtab tw=80 fdm=marker |