Enum Val

pub enum Val {
    Invalid,
    Nil,
    Bool(bool),
    Number(f64),
    String(RcStr),
    List(Rc<List>),
    Func(Func),
    GenObj(GenObjPtr),
}

Variants

Invalid

E.g. to check for usage before assignment

Nil

Bool(bool)

Number(f64)

String(RcStr)

Use of RcStr over Rc is by design – this allows kb to interoperate with rest of mtots without copying the String all over the place

List(Rc<List>)

Func(Func)

GenObj(GenObjPtr)

Implementations

impl Val

pub fn truthy(&self) -> bool

pub fn number(&self) -> Option<f64>

pub fn expect_number(&self) -> Result<f64, Val>

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

pub fn expect_list(&self) -> Result<&List, Val>

pub fn func(&self) -> Option<&Rc<Code>>

pub fn expect_func(&self) -> Result<&Rc<Code>, Val>

pub fn genobj(&self) -> Option<&GenObjPtr>

pub fn expect_genobj(&self) -> Result<&GenObjPtr, Val>

pub fn lt(&self, other: &Self) -> Result<bool, Val>

Trait Implementations

impl Clone for Val

fn clone(&self) -> Val

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Val

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

Formats the value using the given formatter.

impl Display for Val

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

Formats the value using the given formatter.

impl From<&RcStr> for Val

fn from(s: &RcStr) -> Self

Converts to this type from the input type.

impl From<&str> for Val

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<RcStr> for Val

fn from(s: RcStr) -> Self

Converts to this type from the input type.

impl From<String> for Val

fn from(s: String) -> Self

Converts to this type from the input type.

impl From<Vec<Val>> for Val

fn from(vec: Vec<Val>) -> Self

Converts to this type from the input type.

impl From<bool> for Val

fn from(x: bool) -> Self

Converts to this type from the input type.

impl PartialEq for Val

fn eq(&self, other: &Val) -> 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 StructuralPartialEq for Val