add compile-fail tests; test only on nightly

we'll test on beta when 1.30-beta is out

1 files changed, 16 insertions, 0 deletions

diff --git a/cortex-m-rt/tests/compile-fail/default-handler-bad-signature-2.rs b/cortex-m-rt/tests/compile-fail/default-handler-bad-signature-2.rs
new file mode 100644
index 0000000..ec74993
--- /dev/null
+++ b/cortex-m-rt/tests/compile-fail/default-handler-bad-signature-2.rs
@@ -0,0 +1,16 @@
+#![no_main]
+#![no_std]
+
+extern crate cortex_m_rt;
+extern crate panic_semihosting;
+
+use cortex_m_rt::{entry, exception};
+
+#[entry]
+fn foo() -> ! {
+    loop {}
+}
+
+#[exception] //~ ERROR custom attribute panicked
+//~^ HELP `DefaultHandler` exception must have signature `fn(i16)`
+unsafe fn DefaultHandler(_irqn: i16) {}