1 files changed, 25 insertions, 0 deletions
diff --git a/src/test/ui/autoderef-full-lval.rs b/src/test/ui/autoderef-full-lval.rs
new file mode 100644
index 000000000..0fadc5c98
--- /dev/null
+++ b/src/test/ui/autoderef-full-lval.rs
@@ -0,0 +1,25 @@
+struct Clam {
+    x: Box<isize>,
+    y: Box<isize>,
+}
+
+
+
+struct Fish {
+    a: Box<isize>,
+}
+
+fn main() {
+    let a: Clam = Clam{ x: Box::new(1), y: Box::new(2) };
+    let b: Clam = Clam{ x: Box::new(10), y: Box::new(20) };
+    let z: isize = a.x + b.y;
+    //~^ ERROR cannot add `Box<isize>` to `Box<isize>`
+    println!("{}", z);
+    assert_eq!(z, 21);
+    let forty: Fish = Fish{ a: Box::new(40) };
+    let two: Fish = Fish{ a: Box::new(2) };
+    let answer: isize = forty.a + two.a;
+    //~^ ERROR cannot add `Box<isize>` to `Box<isize>`
+    println!("{}", answer);
+    assert_eq!(answer, 42);
+}