Struct Composer 

pub struct Composer {
    pub slots: Vec<Box<dyn Any>>,
    pub slot_callers: Vec<&'static Location<'static>>,
    pub cursor: usize,
    pub keyed_slots: FxHashMap<String, Box<dyn Any>>,
    pub scope_caches: FxHashMap<String, ScopeCache>,
}

Fields

slots: Vec<Box<dyn Any>>

slot_callers: Vec<&'static Location<'static>>

Caller identity for each slot, used to detect stale slots when the composition tree changes between frames.

cursor: usize

keyed_slots: FxHashMap<String, Box<dyn Any>>

scope_caches: FxHashMap<String, ScopeCache>

Per-scope cached state for the scope! macro. Keyed by the scope key string.

Trait Implementations

impl Default for Composer

fn default() -> Composer

Returns the “default value” for a type.