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-rw-r--r--src/test/ui/macros/macro-interpolation.rs33
1 files changed, 33 insertions, 0 deletions
diff --git a/src/test/ui/macros/macro-interpolation.rs b/src/test/ui/macros/macro-interpolation.rs
new file mode 100644
index 000000000..35003a79a
--- /dev/null
+++ b/src/test/ui/macros/macro-interpolation.rs
@@ -0,0 +1,33 @@
+// run-pass
+
+macro_rules! overly_complicated {
+ ($fnname:ident, $arg:ident, $ty:ty, $body:block, $val:expr, $pat:pat, $res:path) =>
+ ({
+ fn $fnname($arg: $ty) -> Option<$ty> $body
+ match $fnname($val) {
+ Some($pat) => {
+ $res
+ }
+ _ => { panic!(); }
+ }
+ })
+
+}
+
+macro_rules! qpath {
+ (path, <$type:ty as $trait:path>::$name:ident) => {
+ <$type as $trait>::$name
+ };
+
+ (ty, <$type:ty as $trait:ty>::$name:ident) => {
+ <$type as $trait>::$name
+ };
+}
+
+pub fn main() {
+ let _: qpath!(path, <str as ToOwned>::Owned);
+ let _: qpath!(ty, <str as ToOwned>::Owned);
+
+ assert!(overly_complicated!(f, x, Option<usize>, { return Some(x); },
+ Some(8), Some(y), y) == 8)
+}