Enum Value 

pub enum Value {
    Int(i64),
    Float(f64),
    Bool(bool),
    Char(char),
    String(String),
    Array(Vec<Value>),
    Tuple(Vec<Value>),
    Struct {
        name: String,
        fields: HashMap<String, Value>,
    },
    Function {
        name: String,
        params: Vec<(String, Type)>,
        body: Box<Expr>,
        closure_env: Option<Environment>,
    },
    Closure {
        params: Vec<(String, Option<Type>)>,
        body: Box<Expr>,
        env: Environment,
    },
    Option(Option<Box<Value>>),
    Unit,
    Break(Option<Box<Value>>),
    Continue,
    Return(Option<Box<Value>>),
}

A runtime value produced by evaluating an expression.

Every result of evaluation is represented as a Value. This includes primitive types (int, float, bool, char, string), compound types (array, tuple, struct), callable types (function, closure), and control-flow sentinels (break, continue, return).

Variants

Int(i64)

Float(f64)

Bool(bool)

Char(char)

String(String)

Array(Vec<Value>)

Tuple(Vec<Value>)

Struct

Fields

name: String

fields: HashMap<String, Value>

Function

Fields

name: String

params: Vec<(String, Type)>

body: Box<Expr>

closure_env: Option<Environment>

Closure

Fields

params: Vec<(String, Option<Type>)>

body: Box<Expr>

env: Environment

Option(Option<Box<Value>>)

Unit

Break(Option<Box<Value>>)

Signals a break with an optional value.

Continue

Signals a continue.

Return(Option<Box<Value>>)

Signals a return with an optional value.

Implementations

impl Value

pub fn is_truthy(&self) -> bool

Returns true if the value is considered “truthy” in boolean context.

pub fn type_name(&self) -> &str

Returns the human-readable name of this value’s type.

pub fn debug_fmt(&self) -> String

Debug-style format that shows quotes around strings and chars.

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate 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 Display for Value

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

Formats the value using the given formatter.