1 files changed, 21 insertions, 0 deletions
diff --git a/pw_rust/examples/host_executable/proc_macro/lib.rs b/pw_rust/examples/host_executable/proc_macro/lib.rs
new file mode 100644
index 000000000..f06005df8
--- /dev/null
+++ b/pw_rust/examples/host_executable/proc_macro/lib.rs
@@ -0,0 +1,21 @@
+// Copyright 2023 The Pigweed Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not
+// use this file except in compliance with the License. You may obtain a copy of
+// the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations under
+// the License.
+
+extern crate proc_macro;
+use proc_macro::TokenStream;
+
+#[proc_macro]
+pub fn fn_like_proc_macro(input: TokenStream) -> TokenStream {
+    input
+}