Enum Item 

pub enum Item {
    Value(f64),
    Variable(String),
    Operator(Operator),
    Group(Group),
}

An item represents a single item in an equation.

Variants

Value(f64)

A value is a number.

Variable(String)

A variable is a variable that can be replaced later.

Operator(Operator)

An operator is an operator that can be used in an equation (i.e. +).

Group(Group)

A group is a group of items (like those inside of bracets).

Trait Implementations

impl Clone for Item

fn clone(&self) -> Item

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Item

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

Formats the value using the given formatter.

impl From<FunctionalOperator> for Item

fn from(val: FunctionalOperator) -> Self

Converts to this type from the input type.

impl From<Group> for Item

fn from(val: Group) -> Self

Converts to this type from the input type.

impl From<LeftAssociativeOperator> for Item

fn from(val: LeftAssociativeOperator) -> Self

Converts to this type from the input type.

impl From<Operator> for Item

fn from(val: Operator) -> Self

Converts to this type from the input type.

impl From<String> for Item

fn from(val: String) -> Self

Converts to this type from the input type.

impl From<Vec<Item>> for Item

fn from(val: Vec<Item>) -> Self

Converts to this type from the input type.

impl From<f64> for Item

fn from(val: f64) -> Self

Converts to this type from the input type.