print field attributes

2 files changed, 3 insertions, 2 deletions

diff --git a/Cargo.toml b/Cargo.toml
index e56cb25..98294e6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,4 +10,4 @@ proc-macro = true
 
 [dependencies]
 quote = "1.0"
-syn = { version = "2.0.16", features = ["full"] }
+syn = { version = "2.0.16", features = ["full", "extra-traits"] }
diff --git a/src/lib.rs b/src/lib.rs
index 9a9e8a3..3a9c2ba 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -27,7 +27,7 @@ pub fn derive_serialize(item: TokenStream) -> TokenStream {
     .into()
 }
 
-#[proc_macro_derive(Deserialize)]
+#[proc_macro_derive(Deserialize, attributes(len_for))]
 pub fn derive_deserialize(item: TokenStream) -> TokenStream {
     let ast: ItemStruct = parse(item).unwrap();
     let name = ast.ident;
@@ -35,6 +35,7 @@ pub fn derive_deserialize(item: TokenStream) -> TokenStream {
     let deserializers = ast.fields.iter().map(|field| {
         let field_name = field.ident.as_ref().expect("should be a names struct");
 
+        println!("{:?}", field.attrs);
         quote!(
             self.#field_name.deserialize(r)?;
         )