craft_core 0.1.1

Core library for the Craft GUI framework.
Documentation 
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use crate::components::ComponentId;
use std::any::Any;
use std::collections::{HashMap, HashSet};

pub type StateStoreItem = dyn Any + Send;

#[derive(Default)]
pub struct StateStore {
    pub storage: HashMap<ComponentId, Box<StateStoreItem>>,
}

impl StateStore {
    pub(crate) fn remove_unused_state(
        &mut self,
        old_component_ids: &HashSet<ComponentId>,
        new_component_ids: &HashSet<ComponentId>,
    ) {
        // Get the old component ids that aren't in new_component_ids.
        old_component_ids.difference(new_component_ids).for_each(|component_id| {
            self.storage.remove(component_id);
        });
    }
}