Add a Snapshot abstraction for deferring and restoring visitor context (#4353)

2023-05-10 12:50:47 -04:00
parent fd34797d0f
commit ea3d3a655d
4 changed files with 81 additions and 84 deletions
--- a/crates/ruff_python_semantic/src/node.rs
+++ b/crates/ruff_python_semantic/src/node.rs
@@ -30,6 +30,7 @@ impl From<NodeId> for usize {
    }
 }

+/// A [`Node`] represents a statement in a program, along with a pointer to its parent (if any).
 #[derive(Debug)]
 struct Node<'a> {
    /// The statement this node represents.