Struct ErasedStack 

pub struct ErasedStack { /* private fields */ }

A stack-based evaluator for erased expressions.

Implementations

impl ErasedStack

pub fn new() -> Self

Create an empty stack.

pub fn push(&mut self, expr: ErasedExpr)

Push an expression onto the stack.

pub fn pop(&mut self) -> Option<ErasedExpr>

Pop an expression from the stack.

pub fn peek(&self) -> Option<&ErasedExpr>

Peek at the top expression.

pub fn depth(&self) -> usize

Return the stack depth.

pub fn is_empty(&self) -> bool

Return whether the stack is empty.

Trait Implementations

impl Default for ErasedStack

fn default() -> Self

Returns the “default value” for a type.