Playing with proc macros

src/peg/mod.rs

@@ -0,0 +1,3 @@
+pub mod peg;
+
+pub use peg::*;

src/peg/peg.rs

@@ -0,0 +1,6 @@
+#[derive(Debug)]
+#[allow(dead_code)]
+pub enum Foo {
+    Bar(usize),
+    Baz(String),
+}