Enum rust_lisp::model::Value

pub enum Value {
    True,
    False,
    Int(IntType),
    Float(FloatType),
    String(String),
    Symbol(String),
    List(List),
    NativeFunc(fn(env: Rc<RefCell<Env>>, args: &Vec<Value>) -> Result<Value, RuntimeError>),
    Lambda(Lambda),
    TailCall {
        func: Rc<Value>,
        args: Vec<Value>,
    },
}

Value encompasses all possible Lisp values, including atoms, lists, and others.

Variants

True

False

Int(IntType)

Float(FloatType)

String(String)

Symbol(String)

List(List)

NativeFunc(fn(env: Rc<RefCell<Env>>, args: &Vec<Value>) -> Result<Value, RuntimeError>)

Lambda(Lambda)

TailCall

Fields

func: Rc<Value>

args: Vec<Value>

Implementations

impl Value

pub const NIL: Value

pub fn type_name(&self) -> &str

pub fn from_truth(b: bool) -> Value

pub fn is_truthy(&self) -> bool

pub fn from_int<I: Into<IntType>>(i: I) -> Value

pub fn from_float<F: Into<FloatType>>(f: F) -> Value

pub fn as_int(&self) -> Option<IntType>

pub fn as_float(&self) -> Option<FloatType>

pub fn as_string(&self) -> Option<&str>

pub fn as_list(&self) -> Option<List>

pub fn as_lambda(&self) -> Option<Lambda>

pub fn as_symbol(&self) -> Option<String>

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, formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Value

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

Formats the value using the given formatter.

impl<'a> FromIterator<&'a Value> for List

fn from_iter<I: IntoIterator<Item = &'a Value>>(iter: I) -> Self

Creates a value from an iterator.

impl FromIterator<Value> for List

fn from_iter<I: IntoIterator<Item = Value>>(iter: I) -> Self

Creates a value from an iterator.

impl Ord for Value

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<Value> for Value

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

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

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialOrd<Value> for Value

fn partial_cmp(&self, other: &Value) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Value