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Handle missing instance binding callbacks by finding the closest parent 

(cherry picked from commit 52ca3ef547)
pull/1261/head
David Snopek 2023-07-06 21:39:19 -05:00
parent f8054cca80
commit ec6e51b3a4
1 changed files with 12 additions and 1 deletions
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13
src/core/class_db.cpp
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@ -318,7 +318,18 @@ GDExtensionClassCallVirtual ClassDB::get_virtual_func(void *p_userdata, GDExtens
const GDExtensionInstanceBindingCallbacks *ClassDB::get_instance_binding_callbacks(const StringName &p_class) {
std::unordered_map<StringName, const GDExtensionInstanceBindingCallbacks *>::iterator callbacks_it = instance_binding_callbacks.find(p_class);
ERR_FAIL_COND_V_MSG(callbacks_it == instance_binding_callbacks.end(), nullptr, String("Cannot find instance binding callbacks for class '{0}'.").format(Array::make(p_class)));
if (likely(callbacks_it != instance_binding_callbacks.end())) {
return callbacks_it->second;
}
// If we don't have an instance binding callback for the given class, find the closest parent where we do.
StringName class_name = p_class;
do {
class_name = get_parent_class(class_name);
ERR_FAIL_COND_V_MSG(class_name == StringName(), nullptr, String("Cannot find instance binding callbacks for class '{0}'.").format(Array::make(p_class)));
callbacks_it = instance_binding_callbacks.find(class_name);
} while (callbacks_it == instance_binding_callbacks.end());
return callbacks_it->second;
}