Remove Engine::custom_types.

src/api/register.rs

@@ -273,7 +273,7 @@ impl Engine {
     /// ```
     #[inline(always)]
     pub fn register_type_with_name<T: Variant + Clone>(&mut self, name: &str) -> &mut Self {
-        self.custom_types.add_type::<T>(name);
+        self.global_namespace_mut().set_custom_type::<T>(name);
         self
     }
     /// Register a custom type for use with the [`Engine`], with a pretty-print name
@@ -289,7 +289,8 @@ impl Engine {
         name: impl Into<Identifier>,
     ) -> &mut Self {
         // Add the pretty-print type name into the map
-        self.custom_types.add(fully_qualified_type_path, name);
+        self.global_namespace_mut()
+            .set_custom_type_raw(fully_qualified_type_path, name);
         self
     }
     /// Register an type iterator for an iterable type with the [`Engine`].

src/api/type_names.rs

@@ -97,7 +97,6 @@ impl Engine {
                 #[cfg(feature = "no_module")]
                 return None;
             })
-            .or_else(|| self.custom_types.get(name))
             .unwrap_or_else(|| map_std_type_name(name, true))
     }
 
@@ -119,8 +118,18 @@ impl Engine {
             };
         }
 
-        self.custom_types
-            .get(name)
+        self.global_modules
+            .iter()
+            .find_map(|m| m.get_custom_type(name))
+            .or_else(|| {
+                #[cfg(not(feature = "no_module"))]
+                return self
+                    .global_sub_modules
+                    .iter()
+                    .find_map(|(_, m)| m.get_custom_type(name));
+                #[cfg(feature = "no_module")]
+                return None;
+            })
             .unwrap_or_else(|| match name {
                 "INT" => return type_name::<crate::INT>(),
                 #[cfg(not(feature = "no_float"))]