Struct Composition 

pub struct Composition<A: Applier + 'static> { /* private fields */ }

Implementations

impl<A: Applier + 'static> Composition<A>

pub fn new(applier: A) -> Self

pub fn with_runtime(applier: A, runtime: Runtime) -> Self

pub fn with_backend( applier: A, runtime: Runtime, backend_kind: SlotBackendKind, ) -> Self

pub fn render( &mut self, key: Key, content: impl FnMut(), ) -> Result<(), NodeError>

pub fn should_render(&self) -> bool

Returns true if composition needs to process invalid scopes (recompose).

This checks both:

• has_updates(): composition scopes that were invalidated by state changes
• needs_frame(): animation callbacks that may have pending work

Note: For scroll performance, ensure scroll state changes use Cell instead of MutableState to avoid triggering recomposition on every scroll frame.

pub fn runtime_handle(&self) -> RuntimeHandle

pub fn applier_mut(&mut self) -> ApplierGuard<'_, A>

pub fn root(&self) -> Option<NodeId>

pub fn debug_dump_slot_table_groups( &self, ) -> Vec<(usize, Key, Option<usize>, usize)>

pub fn debug_dump_all_slots(&self) -> Vec<(usize, String)>

pub fn process_invalid_scopes(&mut self) -> Result<bool, NodeError>

pub fn flush_pending_node_updates(&mut self) -> Result<(), NodeError>

Trait Implementations

impl<A: Applier + 'static> Drop for Composition<A>

fn drop(&mut self)

Executes the destructor for this type.