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-rw-r--r--tests/ui/macros/issue-8851.rs30
1 files changed, 30 insertions, 0 deletions
diff --git a/tests/ui/macros/issue-8851.rs b/tests/ui/macros/issue-8851.rs
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+++ b/tests/ui/macros/issue-8851.rs
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+// run-pass
+#![allow(dead_code)]
+// after fixing #9384 and implementing hygiene for match bindings,
+// this now fails because the insertion of the 'y' into the match
+// doesn't cause capture. Making this macro hygienic (as I've done)
+// could very well make this test case completely pointless....
+
+// pretty-expanded FIXME #23616
+
+enum T {
+ A(isize),
+ B(usize)
+}
+
+macro_rules! test {
+ ($id:ident, $e:expr) => (
+ fn foo(t: T) -> isize {
+ match t {
+ T::A($id) => $e,
+ T::B($id) => $e
+ }
+ }
+ )
+}
+
+test!(y, 10 + (y as isize));
+
+pub fn main() {
+ foo(T::A(20));
+}