Struct ValueState 

pub struct ValueState {
    pub def: ValueDef,
    pub index: usize,
    /* private fields */
}

Runtime state for a single value.

Fields

def: ValueDef

Definition from template.

index: usize

Index of this value in the record.

Implementations

impl ValueState

pub fn new(def: ValueDef, index: usize) -> ValueState

Create a new value state.

pub fn assign(&mut self, value: String, all_results: &mut [Vec<Value>])

Assign a matched value.

pub fn assign_none(&mut self)

Assign None (for unmatched optional capture groups).

Matches Python’s behavior: when a named group exists in a rule’s regex but the group didn’t participate in the match (optional group), Python’s groupdict() yields None for that key, and AssignVar(None) is called, which clears the current value and updates the Filldown cache.

Without this, stale Filldown values persist across records when an optional group stops matching.

pub fn clear(&mut self)

Clear value (respects Filldown).

pub fn clear_all(&mut self)

Clear all (including Filldown cache).

pub fn satisfies_required(&self) -> bool

Check if Required constraint is satisfied.

pub fn take_for_record(&mut self) -> Value

Get current value for recording.

pub fn current(&self) -> &Value

Get current value (for inspection).

Trait Implementations

impl Clone for ValueState

fn clone(&self) -> ValueState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValueState

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

Formats the value using the given formatter.