Struct ComposedDispatcher 

pub struct ComposedDispatcher<C, O> { /* private fields */ }

Composition of multiple SealedDispatchers over disjoint variant universes. Operates on serde_json::Value variants keyed by the "kind" field. Use .add(...) to extend.

Implementations

impl<C, O> ComposedDispatcher<C, O>

where O: Default,

pub fn new() -> Self

Start a fresh composition with the default strategy.

pub fn with_strategy(self, strategy: MergeStrategy) -> Self

Override the merge strategy.

pub fn strategy(&self) -> MergeStrategy

The strategy this composition uses.

pub fn add<V>( self, label: &str, source: SealedDispatcher<V, C, O>, ) -> Result<Self, DispatcherError>

where V: TypedDispatcher + Serialize + DeserializeOwned + 'static, C: 'static, O: 'static,

Extend with another sealed dispatcher. Kinds must be disjoint from any already-added source — overlap raises DuplicateHelper (which here means “the composition’s kind universes overlap; pick one source for each kind”).

label is a fleet-unique tag for the source (typically matches the register_dispatcher! label).

Errors

Returns DispatcherError::DuplicateHelper if any of the added dispatcher’s kinds is already covered.

pub fn apply_each(&self, variants: &[Value], ctx: &mut C) -> Vec<O>

where O: Default,

Apply each serde_json::Value variant against the composed helpers. Unknown kinds skip silently — use try_apply_each for typed UnknownKind reporting.

pub fn try_apply_each( &self, variants: &[Value], ctx: &mut C, ) -> Result<Vec<O>, DispatcherError>

where O: Default,

apply_each with explicit error surfacing.

Errors

Returns DispatcherError::UnknownKind if a variant’s kind has no registered helper across the composition.

pub fn helper_count(&self) -> usize

Number of helpers in the composition (sum of source helpers; equal to the disjoint union of source variant universes).

pub fn covered_kinds(&self) -> Vec<&str>

Read-only view of every kind covered by the composition, in canonical sorted order.

pub fn sources(&self) -> &[ComposedSource]

Read-only view of the sources contributing to the composition (label + kinds each contributed).

Trait Implementations

impl<C, O> Default for ComposedDispatcher<C, O>

fn default() -> Self

Returns the “default value” for a type.