Add a dev crate to run the File parser
diff --git a/dev/parse.rs b/dev/parse.rs
new file mode 100644
index 0000000..8f7fc44
--- /dev/null
+++ b/dev/parse.rs
@@ -0,0 +1,10 @@
+extern crate proc_macro;
+
+use proc_macro::TokenStream;
+use syn::{parse_macro_input, File};
+
+#[proc_macro]
+pub fn r#mod(input: TokenStream) -> TokenStream {
+    parse_macro_input!(input as File);
+    "fn main() {}".parse().unwrap()
+}