Struct Tracker

pub struct Tracker {
    depth: RefCell<Depth>,
}

The tracker for a recursive function.

Fields

depth: RefCell<Depth>

Implementations

impl Tracker

pub const fn new() -> Self

Create a new tracker.

pub fn depth(&self) -> usize

Retrieve the current depth of the recursion. Starts from 1 once the recursive function is called.

pub fn depth_reaches(&self, depth: usize) -> bool

Check if the current depth reaches the given depth for the first time.

This is useful for logging without any duplication.

fn recurse<T>(&self, f: impl FnOnce() -> T) -> T

Run a recursive function. Grow the stack if necessary.