with cargo expand

README.md

+# Proc macro example
+
+> cargo run --example main
+
+
+To see the result of macro expansion, you need `cargo-expand`.
+
+> cargo install cargo-expand
+
+Now you can run:
+
+> cargo expand --example main > expand_main.rs

expand_main.rs

+#![feature(prelude_import)]
+#[prelude_import]
+use std::prelude::v1::*;
+#[macro_use]
+extern crate std;
+use d7050e_proc_macro::my_attribute;
+fn main() {}