pub trait NodeAssignmentMethod<T, S: Clone> {
// Required methods
fn get(&self, node: &Rc<T>) -> Option<S>;
fn set(&self, node: &Rc<T>, symbol: Option<S>);
fn delete(&self, node: &Rc<T>) -> bool;
fn has(&self, node: &Rc<T>) -> bool;
}Expand description
Defines access methods for the NodeAssignment structure,
used for attaching semantics to the syntactic tree,
where T is the node type, and S is the symbol type.