Enum StringKeyedValue 

pub enum StringKeyedValue {
    Null,
    Bool(bool),
    Int(i64),
    Float(f64),
    String(String),
    Path(String),
    List(Vec<StringKeyedValue>),
    Attrs(BTreeMap<String, StringKeyedValue>),
    Lambda,
    Thunk(Rc<dyn Fn() -> Result<StringKeyedValue, String>>),
    Callable(Rc<dyn Fn(StringKeyedValue) -> Result<StringKeyedValue, String>>),
}

A string-keyed value for external API consumption.

Produced by VMValue::to_string_keyed. Uses BTreeMap<String, _> for attrsets so callers don’t need access to the interner.

The Thunk variant carries a deferred computation from the tree-walker bridge. When the VM encounters it during string_keyed_to_nanbox, it wraps the callback in a VMThunk so the value is only evaluated when actually accessed. This keeps getFlake fast by not eagerly resolving all transitive flake inputs.

Variants

Null

Bool(bool)

Int(i64)

Float(f64)

String(String)

Path(String)

List(Vec<StringKeyedValue>)

Attrs(BTreeMap<String, StringKeyedValue>)

Lambda

Thunk(Rc<dyn Fn() -> Result<StringKeyedValue, String>>)

A deferred value — evaluated on demand when the VM forces it.

The callback returns a StringKeyedValue which is then converted to a NanBox by the VM. Uses Rc<dyn Fn()> for cheap cloning and shared memoization.

Callable(Rc<dyn Fn(StringKeyedValue) -> Result<StringKeyedValue, String>>)

A callable tree-walker function wrapped as a bridge callback.

When the VM needs to call this, it converts args through the bridge and delegates to the tree-walker. Created when a Lambda or Builtin value crosses the tree-walker → VM boundary.

Trait Implementations

impl Clone for StringKeyedValue

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StringKeyedValue

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

Formats the value using the given formatter.

impl Display for StringKeyedValue

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

Formats the value using the given formatter.

impl Eq for StringKeyedValue

impl PartialEq for StringKeyedValue

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

Equality operator ==.

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

Inequality operator !=.