Trait Visit

pub trait Visit {
    // Required methods
    fn pop_front_tracked_path_and_set_current(&mut self);
    fn push_back_tracked_path_component(&mut self, component: &BStr);
    fn push_path_component(&mut self, component: &BStr);
    fn pop_path_component(&mut self);
    fn visit(&mut self, change: Change) -> Action;
}

A trait to allow responding to a traversal designed to figure out the changes to turn tree A into tree B.

Required Methods

fn pop_front_tracked_path_and_set_current(&mut self)

Sets the full path in front of the queue so future calls to push and pop components affect it instead.

fn push_back_tracked_path_component(&mut self, component: &BStr)

Append a component to the end of a path, which may be empty.

fn push_path_component(&mut self, component: &BStr)

Append a component to the end of a path, which may be empty.

fn pop_path_component(&mut self)

Removes the last component from the path, which may leave it empty.

fn visit(&mut self, change: Change) -> Action

Record a change and return an instruction whether to continue or not.

The implementation may use the current path to lean where in the tree the change is located.

Implementors

impl Visit for Recorder