alt

tools/src/main.rs

@@ -335,32 +335,16 @@ fn parse_impl(item_impl: &ItemImpl) -> Option<RustDecl> {
 /// Handles both `///` comments (converted to `#[doc = "..."]` by syn)
 /// and explicit `#[doc = "..."]` attributes.
 fn extract_docstring(attrs: &[Attribute]) -> Option<String> {
-    let mut docs = Vec::new();
+    // Convert the attribute’s token stream back to source‑like text.
+    let text = attrs
+        .iter()
+        .map(|a| a.tokens.to_string())
+        .collect::<Vec<_>>()
+        .join("\n");
 
-    for attr in attrs {
+    let re = Regex::new(r#"(?m)^\s*(?:///|#\[\s*doc\s*=\s*")(.+?)(?:")?$"#).ok()?;
-        // `path()` is the correct method; `path` is a field
+    re.captures(&text)
-        if attr.path().is_ident("doc") {
+        .and_then(|c| c.get(1).map(|m| m.as_str().to_string()))
-            // #[doc = "…"]
-            if let Ok(meta) = attr.parse_meta() {
-                if let syn::Meta::NameValue(nv) = meta {
-                    // The value is an `Expr`.  Pull out a string literal.
-                    if let syn::Expr::Lit(syn::ExprLit {
-                        lit: syn::Lit::Str(lit_str),
-                        ..
-                    }) = nv.value
-                    {
-                        docs.push(lit_str.value());
-                    }
-                }
-            }
-        }
-    }
-
-    if docs.is_empty() {
-        None
-    } else {
-        Some(docs.join("\n"))
-    }
 }
 
 fn parse_mod(item_mod: &ItemMod) -> Option<RustDecl> {