Struct Value

pub struct Value(/* private fields */);

A value.

Implementations

impl Value

pub fn to_cons(self) -> Option<Cons>

Converts a value to a cons.

pub fn to_number(self) -> Option<Number>

Converts a value to a number.

pub fn to_typed(self) -> TypedValue

Converts a value to a typed value.

pub fn assume_cons(self) -> Cons

Converts a value to a cons assuming its type.

pub fn assume_number(self) -> Number

Converts a value to a number assuming its type.

pub const fn is_cons(&self) -> bool

Checks if it is a cons.

pub const fn is_number(&self) -> bool

Checks if it is a number.

pub fn tag(self) -> Tag

Returns a tag.

pub fn set_tag(self, tag: Tag) -> Self

Sets a tag.

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Value

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

Formats the value using the given formatter.

impl Default for Value

fn default() -> Self

Returns the “default value” for a type.

impl Display for Value

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

Formats the value using the given formatter.

impl From<Cons> for Value

fn from(cons: Cons) -> Self

Converts to this type from the input type.

impl From<Number> for Value

fn from(number: Number) -> Self

Converts to this type from the input type.

impl PartialEq for Value

fn eq(&self, other: &Self) -> 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 TryFrom<Value> for Cons

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Value> for Number

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Value) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for Value

impl Eq for Value