Struct Fallback 

pub struct Fallback(pub Option<Rc<dyn Fn() -> Element + 'static>>);

The fallback branch of a show-style conditional. Wraps an optional Fn() -> Element closure — None means “render nothing on false”; Some(closure) is what the user typed as fallback: || ….

From<F: Fn() -> Element + 'static> lets a closure literal flow through typed-builder’s Into<Fallback> path; Default (used via #[prop(default)]) is None. (Fallback uses an element-returning closure rather than Children’s view-returning shape because the typical fallback is a single component invocation like || render! { status_banner(...) }, which evaluates to Element. The implementation re-wraps it into a View::Element before attaching.)

Tuple Fields

0: Option<Rc<dyn Fn() -> Element + 'static>>

Trait Implementations

impl Clone for Fallback

fn clone(&self) -> Fallback

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for Fallback

fn default() -> Fallback

Returns the “default value” for a type.

impl<F: Fn() -> Element + 'static> From<F> for Fallback

fn from(f: F) -> Self

Converts to this type from the input type.