libsyntax: Implement `deriving` for struct-like enum variants. r=brson

1 files changed, 12 insertions, 0 deletions

diff --git a/src/test/run-pass/deriving-via-extension-struct-like-enum-variant.rs b/src/test/run-pass/deriving-via-extension-struct-like-enum-variant.rs
new file mode 100644
index 00000000000..c5e41826a35
--- /dev/null
+++ b/src/test/run-pass/deriving-via-extension-struct-like-enum-variant.rs
@@ -0,0 +1,12 @@
+#[deriving_eq]
+enum S {
+    X { x: int, y: int },
+    Y
+}
+
+fn main() {
+    let x = X { x: 1, y: 2 };
+    assert x == x;
+    assert !(x != x);
+}
+