Method trackElementSymbol

src/core/runtime/reactivity.js:232–237

* Track an element-scoped variable read as a dependency. * @param {string} name - Variable name * @param {Element} element - Owning element

(name, element)

     * @param {Element} element - Owning element
     */
    trackElementSymbol(name, element) {
        if (!element) return;
        var elementId = this._getObjectState(element).id;
        this._currentEffect.dependencies.set("symbol:element:" + name + ":" + elementId,
            { type: "symbol", name: name, scope: "element", element: element });
    }

    /**
     * Track a property read as a dependency.