Struct DialogState 

pub struct DialogState {
    pub context: Vec<String>,
    pub entities: HashMap<String, String>,
    pub slots: HashMap<String, String>,
    pub current_act: Option<DialogAct>,
    pub turn_count: usize,
}

Complete state of an ongoing dialogue.

Carries the raw utterance history, a map of extracted entities, and a map of domain-specific slot values filled so far.

Example

use scirs2_text::dialog::{DialogState, DialogAct};

let mut state = DialogState::new();
state.add_utterance("Hello, I want to book a flight to Paris.");
state.set_slot("destination", "Paris");
assert_eq!(state.get_slot("destination"), Some("Paris"));

Fields

context: Vec<String>

Raw utterance history (user turns only).

entities: HashMap<String, String>

Named entities extracted so far. Maps entity type label → value.

slots: HashMap<String, String>

Domain-specific slot values.

current_act: Option<DialogAct>

Current dialog act (last recognised).

turn_count: usize

Number of turns completed.

Implementations

impl DialogState

pub fn new() -> Self

Create an empty DialogState.

pub fn add_utterance(&mut self, utterance: &str)

Append a user utterance to the context history.

pub fn set_slot(&mut self, slot: &str, value: &str)

Set a slot value.

pub fn get_slot(&self, slot: &str) -> Option<&str>

Get a slot value by name.

pub fn set_entity(&mut self, entity_type: &str, value: &str)

Set an entity value.

pub fn get_entity(&self, entity_type: &str) -> Option<&str>

Get an entity value by type label.

pub fn reset(&mut self)

Reset all state (slots, entities, context).

pub fn last_utterance(&self) -> Option<&str>

Return the last utterance, or None if the context is empty.

pub fn slots_filled(&self, required: &[&str]) -> bool

Return true if the required slots are all filled.

Trait Implementations

impl Clone for DialogState

fn clone(&self) -> DialogState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DialogState

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

Formats the value using the given formatter.

impl Default for DialogState

fn default() -> DialogState

Returns the “default value” for a type.