summaryrefslogtreecommitdiffstats
path: root/src/test/ui/never_type/impl-for-never.rs
diff options
context:
space:
mode:
Diffstat (limited to 'src/test/ui/never_type/impl-for-never.rs')
-rw-r--r--src/test/ui/never_type/impl-for-never.rs27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/test/ui/never_type/impl-for-never.rs b/src/test/ui/never_type/impl-for-never.rs
new file mode 100644
index 000000000..9423f0885
--- /dev/null
+++ b/src/test/ui/never_type/impl-for-never.rs
@@ -0,0 +1,27 @@
+// run-pass
+
+#![feature(never_type)]
+
+// Test that we can call static methods on ! both directly and when it appears in a generic
+
+trait StringifyType {
+ fn stringify_type() -> &'static str;
+}
+
+impl StringifyType for ! {
+ fn stringify_type() -> &'static str {
+ "!"
+ }
+}
+
+fn maybe_stringify<T: StringifyType>(opt: Option<T>) -> &'static str {
+ match opt {
+ Some(_) => T::stringify_type(),
+ None => "none",
+ }
+}
+
+fn main() {
+ println!("! is {}", <!>::stringify_type());
+ println!("None is {}", maybe_stringify(None::<!>));
+}