1 files changed, 26 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/proc_macro.rs b/src/tools/clippy/tests/ui/proc_macro.rs
new file mode 100644
index 000000000..59914b8b8
--- /dev/null
+++ b/src/tools/clippy/tests/ui/proc_macro.rs
@@ -0,0 +1,26 @@
+//! Check that we correctly lint procedural macros.
+#![crate_type = "proc-macro"]
+
+extern crate proc_macro;
+
+use proc_macro::TokenStream;
+
+#[allow(dead_code)]
+fn f() {
+    let _x = 3.14;
+}
+
+#[proc_macro]
+pub fn mybangmacro(t: TokenStream) -> TokenStream {
+    t
+}
+
+#[proc_macro_derive(MyDerivedTrait)]
+pub fn myderive(t: TokenStream) -> TokenStream {
+    t
+}
+
+#[proc_macro_attribute]
+pub fn myattribute(t: TokenStream, a: TokenStream) -> TokenStream {
+    t
+}