Struct recursion::recursive_tree::stack_machine_eval::StackMarker

pub struct StackMarker;

Used to mark structures that are expanded via depth first traversal and consumed via stack machine This is a zero-size marker type and has the lowest memory cost (lower than boxed pointers) at the cost of a slightly slower ‘Collapse::collapse_layers’ fn speed

NOTE: adds hard requirement, map_layer traversal order MUST be constant and arity must not change

Trait Implementations

impl Clone for StackMarker

fn clone(&self) -> StackMarker

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StackMarker

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for StackMarker