Enum Token 

pub enum Token {
    Push(Value),
    PushVar(Var),
    Write(Out),
    Binop(Binop),
    Unop(Unop),
    Function(Function),
    Noop,
}

RPN Token

Variants

Push(Value)

Push a value onto the stack

PushVar(Var)

Push variable value onto the stack

Write(Out)

Write top of stack to in-out variable

Binop(Binop)

Binary operation

Pops 2 values from the stack, performs the operation, and pushes the result back onto the stack

Unop(Unop)

Unary operation

Replaces the top value on the stack with the result of the operation

Function(Function)

Function call

Pops a number of arguments from the stack, evaluates the function, and pushes the result back onto the stack.

Noop

No operation

Trait Implementations

impl Clone for Token

fn clone(&self) -> Token

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Token

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

Formats the value using the given formatter.

impl PartialEq for Token

fn eq(&self, other: &Token) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Token

fn partial_cmp(&self, other: &Token) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Token