Method #run

packages/svelte/src/internal/client/dom/blocks/boundary.js:302–322

* @template T * @param {() => T} fn

(fn)

	 * @param {() => T} fn
	 */
	#run(fn) {
		var previous_effect = active_effect;
		var previous_reaction = active_reaction;
		var previous_ctx = component_context;

		set_active_effect(this.#effect);
		set_active_reaction(this.#effect);
		set_component_context(this.#effect.ctx);

		try {
			Batch.ensure();
			return fn();
		} catch (e) {
			handle_error(e);
			return null;
		} finally {
			set_active_effect(previous_effect);
			set_active_reaction(previous_reaction);
			set_component_context(previous_ctx);
		}
	}

	/**
	 * Updates the pending count associated with the currently visible pending snippet,