macro: try to write a macro for inhereting graphs

An attempt to write a derive macro to automatically derive the various
graph traits.

1 files changed, 12 insertions, 0 deletions

diff --git a/graph_macro/src/lib.rs b/graph_macro/src/lib.rs
new file mode 100644
index 0000000..5a0672b
--- /dev/null
+++ b/graph_macro/src/lib.rs
@@ -0,0 +1,12 @@
+//! This file provides a macro to delegate the implementation of a
+//! type that wraps a graph.  More precisely, the macro helps the
+//! wrapper type implement the various Graph-related traits.
+
+use proc_macro::TokenStream;
+
+#[proc_macro_derive(Testing)]
+pub fn test_derive(input: TokenStream) -> TokenStream {
+    println!("input: {input:?}");
+
+    TokenStream::new()
+}