Struct DepthLimitedExpanderExt2 

pub struct DepthLimitedExpanderExt2 {
    pub max_depth: usize,
    pub current_depth: usize,
}

A depth-limited macro expander.

Fields

max_depth: usize

Maximum expansion depth

current_depth: usize

Current depth

Implementations

impl DepthLimitedExpanderExt2

pub fn new(max_depth: usize) -> Self

Create a new expander with the given limit.

pub fn can_expand(&self) -> bool

Returns true if we can still expand (not at limit).

pub fn enter(&mut self) -> bool

Enter a new level of expansion.

pub fn exit(&mut self)

Exit a level of expansion.