Enum Value 

pub enum Value {
    Nil,
    Number(Number),
    Bool(bool),
    Char(char),
    String(String),
    Array(Vec<Value>),
    Dict(HashMap<ValueKey, Value>),
    Set(HashSet<ValueKey>),
    Expr(ExprId),
    Symbol(u32),
    Indeterminate(IndeterminateForm),
    Undefined,
    Error(String),
    Tuple(Vec<Value>),
    Result(Result<Box<Value>, String>),
    Class(u32),
    Option(Option<Box<Value>>),
}

Value type (spec §5): covers the value forms of each layer of the three-world architecture — the symbolic layer (Expr/Symbol/Indeterminate), the numeric layer (Number), and the host layer (Bool/String/Error, etc.). Array is a variable-length heterogeneous sequence (v2.1, spec §11.3); Dict/Set are variable host collections keyed/elemented by immutable hashable ValueKeys (spec §4.6/§11.6). Result/Error carry a structured Error as a message string (the structured enum from spec §16.1 is deferred to a later stage).

Variants

Nil

Number(Number)

Bool(bool)

Char(char)

String(String)

Array(Vec<Value>)

Dict(HashMap<ValueKey, Value>)

Set(HashSet<ValueKey>)

Expr(ExprId)

Symbol(u32)

Indeterminate(IndeterminateForm)

Undefined

Error(String)

Tuple(Vec<Value>)

Result(Result<Box<Value>, String>)

Class(u32)

Option(Option<Box<Value>>)

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 PartialEq for Value

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Value