diff options
Diffstat (limited to 'source/blender/nodes/intern/node_tree_ref.cc')
-rw-r--r-- | source/blender/nodes/intern/node_tree_ref.cc | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/source/blender/nodes/intern/node_tree_ref.cc b/source/blender/nodes/intern/node_tree_ref.cc index 9ce9d6fc273..641d02af902 100644 --- a/source/blender/nodes/intern/node_tree_ref.cc +++ b/source/blender/nodes/intern/node_tree_ref.cc @@ -423,7 +423,13 @@ static bool has_link_cycles_recursive(const NodeRef &node, is_in_stack[node_id] = true; for (const OutputSocketRef *from_socket : node.outputs()) { + if (!from_socket->is_available()) { + continue; + } for (const InputSocketRef *to_socket : from_socket->directly_linked_sockets()) { + if (!to_socket->is_available()) { + continue; + } const NodeRef &to_node = to_socket->node(); if (has_link_cycles_recursive(to_node, visited, is_in_stack)) { return true; @@ -435,6 +441,9 @@ static bool has_link_cycles_recursive(const NodeRef &node, return false; } +/** + * \return True when there is a link cycle. Unavailable sockets are ignored. + */ bool NodeTreeRef::has_link_cycles() const { const int node_amount = nodes_by_id_.size(); |