Fix usage of segmented path attribute with #[func]

godot-macros/src/class/godot_api.rs

@@ -322,9 +322,10 @@ where
 {
     let mut found = None;
     for (index, attr) in attributes.iter().enumerate() {
-        let attr_name = attr
-            .get_single_path_segment()
-            .expect("get_single_path_segment");
+        let Some(attr_name) = attr.get_single_path_segment() else {
+            // Attribute of the form #[segmented::path] can't be what we are looking for
+            continue;
+        };
 
         let new_found = match attr_name {
             name if name == "func" => {

itest/rust/src/register_tests/constant_test.rs

@@ -24,6 +24,10 @@ impl HasConstants {
 
     #[constant]
     const D: usize = 20 + 33 * 45;
+
+    #[constant]
+    #[rustfmt::skip]
+    const DONT_PANIC_WITH_SEGMENTED_PATH_ATTRIBUTE: bool = true;
 }
 
 #[itest]

itest/rust/src/register_tests/func_test.rs

@@ -60,6 +60,16 @@ impl GdSelfReference {
         self.internal_value = new_value;
     }
 
+    #[func]
+    #[rustfmt::skip]
+    fn func_shouldnt_panic_with_segmented_path_attribute() -> bool {
+        true
+    }
+
+    #[signal]
+    #[rustfmt::skip]
+    fn signal_shouldnt_panic_with_segmented_path_attribute();
+
     #[func]
     fn fail_to_update_internal_value_due_to_conflicting_borrow(
         &mut self,