1 files changed, 44 insertions, 0 deletions
diff --git a/tests/ui-fulldeps/deriving-encodable-decodable-cell-refcell.rs b/tests/ui-fulldeps/deriving-encodable-decodable-cell-refcell.rs
new file mode 100644
index 000000000..844d40f2e
--- /dev/null
+++ b/tests/ui-fulldeps/deriving-encodable-decodable-cell-refcell.rs
@@ -0,0 +1,44 @@
+// run-pass
+
+#![allow(unused_imports)]
+// This briefly tests the capability of `Cell` and `RefCell` to implement the
+// `Encodable` and `Decodable` traits via `#[derive(Encodable, Decodable)]`
+#![feature(rustc_private)]
+
+extern crate rustc_macros;
+extern crate rustc_serialize;
+
+// Necessary to pull in object code as the rest of the rustc crates are shipped only as rmeta
+// files.
+#[allow(unused_extern_crates)]
+extern crate rustc_driver;
+
+use rustc_macros::{Decodable, Encodable};
+use rustc_serialize::opaque::{MemDecoder, MemEncoder};
+use rustc_serialize::{Decodable, Encodable, Encoder};
+use std::cell::{Cell, RefCell};
+
+#[derive(Encodable, Decodable)]
+struct A {
+    baz: isize,
+}
+
+#[derive(Encodable, Decodable)]
+struct B {
+    foo: Cell<bool>,
+    bar: RefCell<A>,
+}
+
+fn main() {
+    let obj = B { foo: Cell::new(true), bar: RefCell::new(A { baz: 2 }) };
+
+    let mut encoder = MemEncoder::new();
+    obj.encode(&mut encoder);
+    let data = encoder.finish();
+
+    let mut decoder = MemDecoder::new(&data, 0);
+    let obj2 = B::decode(&mut decoder);
+
+    assert_eq!(obj.foo.get(), obj2.foo.get());
+    assert_eq!(obj.bar.borrow().baz, obj2.bar.borrow().baz);
+}