Trait Visit

Source

pub trait Visit {
    // Provided methods
    fn visit_tree(&mut self, root: &Node) { ... }
    fn visit_node(&mut self, node: &Node, ancestors: &[&Node]) { ... }
    fn visit_leaf(
        &mut self,
        _measures: &[Measure],
        _intensity: Option<&Intensity>,
        _ancestors: &[&Node],
    ) { ... }
    fn visit_exercise(
        &mut self,
        _name: Option<&str>,
        _measures: &[Measure],
        _intensity: Option<&Intensity>,
        _ancestors: &[&Node],
    ) { ... }
    fn visit_block(&mut self, _mode: &ExecutionMode, _ancestors: &[&Node]) { ... }
}

Expand description

Immutable tree visitor with ancestor path context.

ancestors is a slice of parent nodes from root to immediate parent. Empty at the root node, grows as the walk descends.

Usage: struct MyVisitor; impl Visit for MyVisitor { fn visit_leaf(&mut self, measures: &Measure, _: Option<&Intensity>, ancestors: &[&Node]) { // ancestors[0] is root, ancestors.last() is the parent Exercise/Block } } let mut v = MyVisitor; v.visit_tree(&workout.root);