Enum NodeData 

pub enum NodeData {
    Signal {
        value: Rc<RefCell<dyn Any>>,
    },
    Effect {
        compute: Rc<RefCell<dyn FnMut()>>,
    },
    Computed {
        value: Rc<RefCell<dyn Any>>,
        compute: Rc<RefCell<dyn FnMut()>>,
    },
}

The mutable payload of a ReactiveNode. Signals carry a value, effects carry a compute closure, computed values carry both.

The compute closure is wrapped in Rc<RefCell<…>> so the scheduler can grab a clone of the handle before invoking it, keeping the runtime borrow short-lived. User code inside the closure can then re-borrow the runtime freely.

Variants

Signal

Fields

value: Rc<RefCell<dyn Any>>

Effect

Fields

compute: Rc<RefCell<dyn FnMut()>>

Computed

Fields

value: Rc<RefCell<dyn Any>>

compute: Rc<RefCell<dyn FnMut()>>

Implementations

impl NodeData

pub fn kind(&self) -> NodeKind

pub fn value(&self) -> Option<&Rc<RefCell<dyn Any>>>

Borrow the stored value if this node carries one. None for pure effects (which have no observable value).