From 84f3092d70b60c10230364d29aa3bc64f819d25a Mon Sep 17 00:00:00 2001
From: LongYinan <lynweklm@gmail.com>
Date: Wed, 27 Dec 2023 21:18:02 +0800
Subject: [PATCH] fix(napi-derive): proc-macro crash on enum (#1870)

---
 crates/macro/src/parser/mod.rs | 33 +++++++++++++++++++--------------
 examples/napi/src/enum.rs      |  1 +
 2 files changed, 20 insertions(+), 14 deletions(-)

diff --git a/crates/macro/src/parser/mod.rs b/crates/macro/src/parser/mod.rs
index bfde66b4..5de28f29 100644
--- a/crates/macro/src/parser/mod.rs
+++ b/crates/macro/src/parser/mod.rs
@@ -273,20 +273,25 @@ 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
-      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 {
-            syn::Expr::Lit(ExprLit {
-              lit: syn::Lit::Str(str),
-              ..
-            }) => {
-              let quoted = str.token().to_string();
-              Some(try_unescape(&quoted).unwrap_or(quoted))
-            }
-            _ => None,
-          },
-        )
+      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 &name.value {
+              syn::Expr::Lit(ExprLit {
+                lit: syn::Lit::Str(str),
+                ..
+              }) => {
+                let quoted = str.token().to_string();
+                Some(try_unescape(&quoted).unwrap_or(quoted))
+              }
+              _ => None,
+            },
+          )
+        } else {
+          None
+        }
       } else {
         None
       }
diff --git a/examples/napi/src/enum.rs b/examples/napi/src/enum.rs
index 73806eb7..11435af7 100644
--- a/examples/napi/src/enum.rs
+++ b/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