Trait UiWriter 

pub trait UiWriter<H: UiHost> {
    // Required methods
    fn with_cx_mut<R>(
        &mut self,
        f: impl FnOnce(&mut ElementContext<'_, H>) -> R,
    ) -> R;
    fn add(&mut self, element: AnyElement);

    // Provided methods
    fn extend<I>(&mut self, elements: I)
       where I: IntoIterator<Item = AnyElement> { ... }
    fn mount<I>(&mut self, f: impl FnOnce(&mut ElementContext<'_, H>) -> I)
       where I: IntoIterator<Item = AnyElement> { ... }
    fn keyed<K: Hash, R>(
        &mut self,
        key: K,
        f: impl FnOnce(&mut ElementContext<'_, H>) -> R,
    ) -> R { ... }
}

Minimal authoring surface for immediate-style composition.

This is intended for ecosystem crates that want to expose helpers that work across multiple authoring frontends while staying policy-light.

Required Methods

fn with_cx_mut<R>( &mut self, f: impl FnOnce(&mut ElementContext<'_, H>) -> R, ) -> R

Execute a closure with access to the underlying element context (escape hatch).

This avoids leaking ElementContext’s lifetime parameter through the trait surface while still enabling advanced integrations when needed.

fn add(&mut self, element: AnyElement)

Append a single element to the current output list.

Provided Methods

fn extend<I>(&mut self, elements: I)

where I: IntoIterator<Item = AnyElement>,

Append an iterator of elements to the current output list.

fn mount<I>(&mut self, f: impl FnOnce(&mut ElementContext<'_, H>) -> I)

where I: IntoIterator<Item = AnyElement>,

Embed an existing declarative builder into the current output list.

fn keyed<K: Hash, R>( &mut self, key: K, f: impl FnOnce(&mut ElementContext<'_, H>) -> R, ) -> R

Create a keyed identity scope.

This delegates to the runtime’s canonical keyed identity mechanism (ElementContext::keyed) so hashing and stable ID rules remain consistent across frontends.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors