Enum xmachine::Value

pub enum Value {
    String(String),
    Number(f64),
    List(Vec<Ref<Self>>),
    Tree(BTreeMap<String, Ref<Self>>),
    Function(Function<Machine, (), Machine>),
    Error(String),
    None,
}

Variants

String(String)Number(f64)List(Vec<Ref<Self>>)Tree(BTreeMap<String, Ref<Self>>)Function(Function<Machine, (), Machine>)Error(String)None

Methods

impl Value

pub fn number<N: Into<f64>>(n: N) -> Ref<Self>

Creates a new reference to a Number

pub fn string<S: ToString>(s: S) -> Ref<Self>

Creates a new reference to a String

pub fn list() -> Ref<Self>

Creates a new reference to an empty List

pub fn tree() -> Ref<Self>

Creates a new reference to an empty Tree

pub fn function(f: fn(_: &mut Machine), context: &Machine) -> Ref<Self>

Creates a reference to a Function with a captured context, basically a Closure

pub fn error<S: ToString>(s: S) -> Ref<Self>

Creates a reference to an Error value

pub fn none() -> Ref<Self>

Creates a reference to an None value

pub fn copy(&self) -> Ref<Self>

Copies the contents of this value

pub fn call(&self, machine: &mut Machine)

Call this function in the context of the Machine captured when this instance of the function was created

pub fn call_global(&self, machine: &mut Machine)

Call this function in the context of the current machine, meaning, execute the instructions of this function as if they were not in a function.

pub fn index<S: ToString>(&mut self, s: S) -> Ref<Self>

Return a reference to a value contained within a collection

Trait Implementations

impl Display for Value

How to display value

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

Formats the value using the given formatter.

impl Debug for Value

This implementation is a hack for implementing Display for Value

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

Formats the value using the given formatter.

impl PartialEq<Value> for Value

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

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

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

This method tests for !=.

impl From<Value> for bool

############################################################ The following traits are for implementing foreign functions! ############################################################ Convert Value into a bool

fn from(v: Value) -> Self

Performs the conversion.

impl From<Value> for String

Get a function from the value

fn from(v: Value) -> Self

Performs the conversion.

impl From<Value> for Vec<Ref<Value>>

Convert Value to unwrapped List

fn from(v: Value) -> Self

Performs the conversion.

impl From<Value> for BTreeMap<String, Ref<Value>>

Convert Value to unwrapped Tree

fn from(v: Value) -> Self

Performs the conversion.

impl From<Value> for f64

Convert to floating point value

fn from(v: Value) -> Self

Performs the conversion.

impl From<Value> for i32

Convert to integer value

fn from(v: Value) -> Self

Performs the conversion.

impl From<String> for Value

Make Value from String

fn from(s: String) -> Self

Performs the conversion.

impl<'_> From<&'_ str> for Value

Make Value from &str

fn from(s: &str) -> Self

Performs the conversion.

impl From<f64> for Value

Make Value from Number

fn from(n: f64) -> Self

Performs the conversion.

impl From<i32> for Value

Make Value from Number

fn from(n: i32) -> Self

Performs the conversion.

impl From<Vec<Rc<Value>>> for Value

Make Value from List

fn from(l: Vec<Ref<Value>>) -> Self

Performs the conversion.

impl From<BTreeMap<String, Rc<Value>>> for Value

Make Value from Tree

fn from(t: BTreeMap<String, Ref<Value>>) -> Self

Performs the conversion.

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.