patch 9.0.1093: using freed memory of object member
Problem: Using freed memory of object member. (Yegappan Lakshmanan)
Solution: Make a copy of the object member when getting it.
diff --git a/src/testdir/test_vim9_class.vim b/src/testdir/test_vim9_class.vim
index 88128e7..c73e80f 100644
--- a/src/testdir/test_vim9_class.vim
+++ b/src/testdir/test_vim9_class.vim
@@ -323,6 +323,32 @@
assert_fails('trip.four = 4', 'E1334')
END
v9.CheckScriptSuccess(lines)
+
+ lines =<< trim END
+ vim9script
+
+ class MyCar
+ this.make: string
+
+ def new(make_arg: string)
+ this.make = make_arg
+ enddef
+
+ def GetMake(): string
+ return $"make = {this.make}"
+ enddef
+ endclass
+
+ var c = MyCar.new("abc")
+ assert_equal('make = abc', c.GetMake())
+
+ c = MyCar.new("def")
+ assert_equal('make = def', c.GetMake())
+
+ var c2 = MyCar.new("123")
+ assert_equal('make = 123', c2.GetMake())
+ END
+ v9.CheckScriptSuccess(lines)
enddef
def Test_class_member_access()