Enum arithmetic_eval::Value

pub enum Value<'a, T> where
    T: Grammar,  {
    Number(T::Lit),
    Bool(bool),
    Function(Function<'a, T>),
    Tuple(Vec<Value<'a, T>>),
}

Values produced by expressions during their interpretation.

Variants

Number(T::Lit)

Primitive value: a single literal.

Bool(bool)

Boolean value.

Function(Function<'a, T>)

Function.

Tuple(Vec<Value<'a, T>>)

Tuple of zero or more values.

Implementations

impl<'a, T: Grammar> Value<'a, T>

pub fn native_fn(function: impl NativeFn<T> + 'static) -> Self

Creates a value for a native function.

pub fn void() -> Self

Creates a void value (an empty tuple).

pub fn is_void(&self) -> bool

Checks if the value is void.

pub fn is_function(&self) -> bool

Checks if this value is a function.

Trait Implementations

impl<'_, T: Grammar> Clone for Value<'_, T>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a, T: Debug> Debug for Value<'a, T> where
    T: Grammar,
    T::Lit: Debug, 

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

Formats the value using the given formatter.

impl<'_, T: Grammar> PartialEq<Value<'_, T>> for Value<'_, T> where
    T::Lit: PartialEq, 

fn eq(&self, rhs: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.