Enum Token 

pub enum Token {
    Number(f64),
    Operator(Operation),
    LeftParen,
    RightParen,
}

Token types from lexical analysis

Variants

Number(f64)

Numeric literal

Operator(Operation)

Binary operator

LeftParen

Left parenthesis

RightParen

Right parenthesis

Implementations

impl Token

pub const fn is_operator(&self) -> bool

Returns true if this token is an operator

pub const fn is_number(&self) -> bool

Returns true if this token is a number

pub const fn is_left_paren(&self) -> bool

Returns true if this token is a left parenthesis

pub const fn is_right_paren(&self) -> bool

Returns true if this token is a right parenthesis

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 StructuralPartialEq for Token