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-rw-r--r--src/test/ui/resource-destruct.rs31
1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/ui/resource-destruct.rs b/src/test/ui/resource-destruct.rs
new file mode 100644
index 000000000..c4756a21a
--- /dev/null
+++ b/src/test/ui/resource-destruct.rs
@@ -0,0 +1,31 @@
+// run-pass
+
+#![allow(non_camel_case_types)]
+use std::cell::Cell;
+
+struct shrinky_pointer<'a> {
+ i: &'a Cell<isize>,
+}
+
+impl<'a> Drop for shrinky_pointer<'a> {
+ fn drop(&mut self) {
+ println!("Hello!"); self.i.set(self.i.get() - 1);
+ }
+}
+
+impl<'a> shrinky_pointer<'a> {
+ pub fn look_at(&self) -> isize { return self.i.get(); }
+}
+
+fn shrinky_pointer(i: &Cell<isize>) -> shrinky_pointer {
+ shrinky_pointer {
+ i: i
+ }
+}
+
+pub fn main() {
+ let my_total = &Cell::new(10);
+ { let pt = shrinky_pointer(my_total); assert_eq!(pt.look_at(), 10); }
+ println!("my_total = {}", my_total.get());
+ assert_eq!(my_total.get(), 9);
+}