Enum Literal

pub enum Literal<'src> {
    String(&'src str),
    Number(f64),
    Bool(bool),
    Null,
}

A literal type

Variants

String(&'src str)

String

Number(f64)

Real number

Bool(bool)

Boolean

Null

Null, nil, None, etc

Implementations

impl Literal<'_>

pub fn type_of(&self) -> &'static str

Gets a literal’s type name

impl<'a> Literal<'a>

pub fn uint(&self) -> Result<usize, RuntimeError>

Returns the inner literal if it’s a proper unsigned integer truly, asserting a runtime error if not

pub fn number(&self) -> Result<f64, RuntimeError>

Returns the inner literal if it’s numeric, asserting a runtime error if not

pub fn bool(&self) -> Result<bool, RuntimeError>

Returns the inner literal if it’s boolean, asserting a runtime error if not

pub fn equals(&self, other: &Self) -> Result<Literal<'a>, RuntimeError>

Returns the True literal if the two literals are losely equal

pub fn not_equals(&self, other: &Self) -> Result<Literal<'a>, RuntimeError>

Returns the True literal if the two literals are not losely equal

Trait Implementations

impl Add for Literal<'_>

type Output = Result<Literal<'_>, RuntimeError>

The resulting type after applying the + operator.

fn add(self, rhs: Self) -> Self::Output

Performs the + operation.

impl<'src> Clone for Literal<'src>

fn clone(&self) -> Literal<'src>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'src> Debug for Literal<'src>

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

Formats the value using the given formatter.

impl Display for Literal<'_>

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

Formats the value using the given formatter.

impl Div for Literal<'_>

type Output = Result<Literal<'_>, RuntimeError>

The resulting type after applying the / operator.

fn div(self, rhs: Self) -> Self::Output

Performs the / operation.

impl Mul for Literal<'_>

type Output = Result<Literal<'_>, RuntimeError>

The resulting type after applying the * operator.

fn mul(self, rhs: Self) -> Self::Output

Performs the * operation.

impl<'src> PartialEq for Literal<'src>

fn eq(&self, other: &Literal<'src>) -> 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 Sub for Literal<'_>

type Output = Result<Literal<'_>, RuntimeError>

The resulting type after applying the - operator.

fn sub(self, rhs: Self) -> Self::Output

Performs the - operation.

impl<'src> Copy for Literal<'src>

impl<'src> StructuralPartialEq for Literal<'src>