Function signalOper

src/index.ts:368–395

(this: SignalNode<T>, ...value: [T])

}

function signalOper<T>(this: SignalNode<T>, ...value: [T]): T | void {
	if (value.length) {
		if (this.pendingValue !== (this.pendingValue = value[0])) {
			this.flags = ReactiveFlags.Mutable | ReactiveFlags.Dirty;
			const subs = this.subs;
			if (subs !== undefined) {
				propagate(subs, !!runDepth);
				if (!batchDepth) {
					flush();
				}
			}
		}
	} else {
		if (this.flags & ReactiveFlags.Dirty) {
			if (updateSignal(this)) {
				const subs = this.subs;
				if (subs !== undefined) {
					shallowPropagate(subs);
				}
			}
		}
		const sub = activeSub;
		if (sub !== undefined) {
			link(this, sub, cycle);
		}
		return this.currentValue;
	}
}

function runCleanup(e: EffectNode): void {
	const cleanup = e.cleanup!;