use std::borrow::Cow;
+use std::cell::Cell;
use std::collections::TryReserveError::*;
use std::fmt::Debug;
use std::iter::InPlaceIterable;
assert_partial_eq_valid!(vec2,vec3; array2,array3);
assert_partial_eq_valid!(vec2,vec3; arrayref2,arrayref3);
}
+
+#[test]
+fn test_vec_cycle() {
+ #[derive(Debug)]
+ struct C<'a> {
+ v: Vec<Cell<Option<&'a C<'a>>>>,
+ }
+
+ impl<'a> C<'a> {
+ fn new() -> C<'a> {
+ C { v: Vec::new() }
+ }
+ }
+
+ let mut c1 = C::new();
+ let mut c2 = C::new();
+ let mut c3 = C::new();
+
+ // Push
+ c1.v.push(Cell::new(None));
+ c1.v.push(Cell::new(None));
+
+ c2.v.push(Cell::new(None));
+ c2.v.push(Cell::new(None));
+
+ c3.v.push(Cell::new(None));
+ c3.v.push(Cell::new(None));
+
+ // Set
+ c1.v[0].set(Some(&c2));
+ c1.v[1].set(Some(&c3));
+
+ c2.v[0].set(Some(&c2));
+ c2.v[1].set(Some(&c3));
+
+ c3.v[0].set(Some(&c1));
+ c3.v[1].set(Some(&c2));
+}
+++ /dev/null
-// run-pass
-
-use std::cell::Cell;
-
-#[derive(Debug)]
-struct C<'a> {
- v: Vec<Cell<Option<&'a C<'a>>>>,
-}
-
-impl<'a> C<'a> {
- fn new() -> C<'a> {
- C { v: Vec::new() }
- }
-}
-
-fn f() {
- let (mut c1, mut c2, mut c3);
- c1 = C::new();
- c2 = C::new();
- c3 = C::new();
-
- c1.v.push(Cell::new(None));
- c1.v.push(Cell::new(None));
- c2.v.push(Cell::new(None));
- c2.v.push(Cell::new(None));
- c3.v.push(Cell::new(None));
- c3.v.push(Cell::new(None));
-
- c1.v[0].set(Some(&c2));
- c1.v[1].set(Some(&c3));
- c2.v[0].set(Some(&c2));
- c2.v[1].set(Some(&c3));
- c3.v[0].set(Some(&c1));
- c3.v[1].set(Some(&c2));
-}
-
-fn main() {
- f();
-}