fix(napi-derive): proc-macro crash on enum (#1870)

crates/macro/src/parser/mod.rs

@@ -273,10 +273,12 @@ fn extract_doc_comments(attrs: &[syn::Attribute]) -> Vec<String> {
     .filter_map(|a| {
       // if the path segments include an ident of "doc" we know this
       // this is a doc comment
+      let name_value = a.meta.require_name_value();
+      if let Ok(name) = name_value {
         if a.path().is_ident("doc") {
           Some(
             // We want to filter out any Puncts so just grab the Literals
-          match &a.meta.require_name_value().unwrap().value {
+            match &name.value {
               syn::Expr::Lit(ExprLit {
                 lit: syn::Lit::Str(str),
                 ..
@@ -290,6 +292,9 @@ fn extract_doc_comments(attrs: &[syn::Attribute]) -> Vec<String> {
         } else {
           None
         }
+      } else {
+        None
+      }
     })
     //Fold up the [[String]] iter we created into Vec<String>
     .fold(vec![], |mut acc, a| {

examples/napi/src/enum.rs

@@ -26,6 +26,7 @@ pub enum CustomNumEnum {
   Two,
   Three = 3,
   Four,
+  #[doc(hidden)]
   Six = 6,
   Eight = 8,
   Nine, // would be 9