Struct TypedStateManager 

pub struct TypedStateManager<S>
where
    S: AgentState,
{ /* private fields */ }

A typed state manager for custom state types.

This provides the same functionality as StateManager but works with strongly-typed state objects that implement AgentState.

Example

use ag_ui_core::state::TypedStateManager;
use ag_ui_core::AgentState;
use serde::{Deserialize, Serialize};

#[derive(Debug, Clone, Default, Serialize, Deserialize, PartialEq)]
struct AppState {
    count: u32,
    user: Option<String>,
}

impl AgentState for AppState {}

let mut manager = TypedStateManager::new(AppState { count: 0, user: None });

let delta = manager.update(AppState { count: 1, user: None });
assert!(delta.is_some());

assert_eq!(manager.current().count, 1);

Implementations

impl<S> TypedStateManager<S>

where S: AgentState + PartialEq,

pub fn new(initial: S) -> TypedStateManager<S>

Creates a new typed state manager with the given initial state.

pub fn current(&self) -> &S

Returns a reference to the current state.

pub fn version(&self) -> u64

Returns the current state version (increments on each update).

pub fn update(&mut self, new_state: S) -> Option<Patch>

Updates the state and returns the delta patch if there were changes.

Returns None if the new state is identical to the current state.

pub fn reset(&mut self, new_state: S)

Resets the state to a new value without computing a delta.

pub fn snapshot(&self) -> Value

Takes a snapshot of the current state as JSON.

pub fn as_json(&self) -> Value

Returns the current state as a JSON value.

Trait Implementations

impl<S> Clone for TypedStateManager<S>

where S: Clone + AgentState,

fn clone(&self) -> TypedStateManager<S>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<S> Debug for TypedStateManager<S>

where S: Debug + AgentState,

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

Formats the value using the given formatter.

impl<S> Default for TypedStateManager<S>

where S: AgentState + PartialEq,

fn default() -> TypedStateManager<S>

Returns the “default value” for a type.