Enum dust_lang::Value

pub enum Value {
    List(List),
    Map(Map),
    Function(Function),
    String(Arc<RwLock<String>>),
    Float(f64),
    Integer(i64),
    Boolean(bool),
    Option(Option<Box<Value>>),
}

Dust value representation.

Every dust variable has a key and a Value. Variables are represented by storing them in a VariableMap. This means the map of variables is itself a value that can be treated as any other.

Variants

List(List)

Map(Map)

Function(Function)

String(Arc<RwLock<String>>)

Float(f64)

Integer(i64)

Boolean(bool)

Option(Option<Box<Value>>)

Implementations

impl Value

pub fn string<T: Into<String>>(string: T) -> Self

pub fn type(&self) -> Type

pub fn none() -> Self

pub fn some(value: Value) -> Self

pub fn option(option: Option<Value>) -> Self

pub fn is_string(&self) -> bool

pub fn is_integer(&self) -> bool

pub fn is_float(&self) -> bool

pub fn is_number(&self) -> bool

pub fn is_boolean(&self) -> bool

pub fn is_list(&self) -> bool

pub fn is_option(&self) -> bool

pub fn is_none(&self) -> bool

pub fn is_map(&self) -> bool

pub fn is_function(&self) -> bool

pub fn as_string(&self) -> Result<RwLockReadGuard<'_, String>>

Borrows the value stored in self as &str, or returns Err if self is not a Value::String.

pub fn as_string_mut(&self) -> Result<RwLockWriteGuard<'_, String>>

Borrows the value stored in self as String, or returns Err if self is not a Value::String.

pub fn as_integer(&self) -> Result<i64>

Copies the value stored in self as i64, or returns Err if self is not a Value::Int.

pub fn as_float(&self) -> Result<f64>

Copies the value stored in self as f64, or returns Err if self is not a Primitive::Float.

pub fn as_number(&self) -> Result<f64>

Copies the value stored in self as f64, or returns Err if self is not a Primitive::Float or Value::Int. Note that this method silently converts i64 to f64, if self is a Value::Int.

pub fn as_boolean(&self) -> Result<bool>

Copies the value stored in self as bool, or returns Err if self is not a Primitive::Boolean.

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

Borrows the value stored in self as Vec<Value>, or returns Err if self is not a Value::List.

pub fn into_inner_list(self) -> Result<List>

Takes ownership of the value stored in self as Vec<Value>, or returns Err if self is not a Value::List.

pub fn as_map(&self) -> Result<&Map>

Borrows the value stored in self as Vec<Value>, or returns Err if self is not a Value::Map.

pub fn as_function(&self) -> Result<&Function>

Borrows the value stored in self as Function, or returns Err if self is not a Value::Function.

pub fn as_option(&self) -> Result<&Option<Box<Value>>>

Returns Option, or returns Err if self is not a Value::Option.

pub fn as_none(&self) -> Result<()>

Returns (), or returns Err if self is not a Value::none().

Trait Implementations

impl Add for Value

type Output = Result<Value, Error>

The resulting type after applying the + operator.

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

Performs the + operation.

impl AddAssign for Value

fn add_assign(&mut self, other: Self)

Performs the += operation.

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 Default for Value

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Value

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Value

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

Formats the value using the given formatter.

impl Div for Value

type Output = Result<Value, Error>

The resulting type after applying the / operator.

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

Performs the / operation.

impl From<&str> for Value

fn from(string: &str) -> Self

Converts to this type from the input type.

impl From<()> for Value

fn from(_: ()) -> Self

Converts to this type from the input type.

impl From<String> for Value

fn from(string: String) -> Self

Converts to this type from the input type.

impl From<Value> for Result<Value>

fn from(value: Value) -> Self

Converts to this type from the input type.

impl From<Vec<Value>> for Value

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

Converts to this type from the input type.

impl From<bool> for Value

fn from(boolean: bool) -> Self

Converts to this type from the input type.

impl From<f64> for Value

fn from(float: f64) -> Self

Converts to this type from the input type.

impl From<i64> for Value

fn from(int: i64) -> Self

Converts to this type from the input type.

impl Mul for Value

type Output = Result<Value, Error>

The resulting type after applying the * operator.

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

Performs the * operation.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq 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 !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Value

fn partial_cmp(&self, other: &Self) -> 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 Rem for Value

type Output = Result<Value, Error>

The resulting type after applying the % operator.

fn rem(self, other: Self) -> Self::Output

Performs the % operation.

impl Serialize for Value

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Sub for Value

type Output = Result<Value, Error>

The resulting type after applying the - operator.

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

Performs the - operation.

impl SubAssign for Value

fn sub_assign(&mut self, other: Self)

Performs the -= operation.

impl TryFrom<Value> for String

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 bool

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 f64

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 i64

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 Eq for Value