implement `#[interrupt]`

1 files changed, 21 insertions, 0 deletions

diff --git a/cortex-m-rt/tests/compile-fail/interrupt-invalid.rs b/cortex-m-rt/tests/compile-fail/interrupt-invalid.rs
new file mode 100644
index 0000000..4e79e7d
--- /dev/null
+++ b/cortex-m-rt/tests/compile-fail/interrupt-invalid.rs
@@ -0,0 +1,21 @@
+#![no_main]
+#![no_std]
+
+extern crate cortex_m_rt;
+extern crate panic_halt;
+
+use cortex_m_rt::{entry, interrupt};
+
+#[entry]
+fn foo() -> ! {
+    loop {}
+}
+
+enum interrupt {
+    USART1,
+}
+
+// NOTE this looks a bit better when using a device crate:
+// "no variant named `foo` found for type `stm32f30x::Interrupt` in the current scope"
+#[interrupt] //~ ERROR no variant named `foo` found for type `interrupt` in the current scope
+fn foo() {}