Enum CompiledStep 

pub enum CompiledStep {
    Process {
        processor: BoxProcessor,
        body_contract: Option<BodyType>,
        lifecycle: Option<Arc<dyn StepLifecycle>>,
        label: Option<Arc<str>>,
        kind_hint: SpanKindHint,
    },
    Stop,
    Segment {
        segment: OutcomeSegment,
        body_contract: Option<BodyType>,
        lifecycle: Option<Vec<Arc<dyn StepLifecycle>>>,
        label: Option<Arc<str>>,
    },
}

A compiled pipeline step.

Process is the normal case: a boxed processor plus its optional body contract. Stop (added in Task 3b) is the Stop EIP marker — run_steps recognises it and produces PipelineOutcome::Stopped without invoking a Tower service. Segment (added in Task 3) wraps an OutcomeSegment for structural EIPs with outcome-aware sub-pipelines.

Boundary: CompiledStep is the compile-time representation. At runtime, run_steps consumes a Vec<CompiledStep> (Stop variants included) and produces a PipelineOutcome; the wrapping Service<Exchange> impl translates PipelineOutcome back to Result<Exchange, CamelError>. See ADR-0024.

Variants

Process

Fields

processor: BoxProcessor

body_contract: Option<BodyType>

lifecycle: Option<Arc<dyn StepLifecycle>>

Lifecycle handle for this processor, if it is stateful. None for stateless processors (the common case).

label: Option<Arc<str>>

Stable span name (e.g. to:direct, split), stamped by StepCompilerRegistry::compile_step from BuilderStep::span_label. None for anonymous steps — spans fall back to the positional step-{index} name. Read by compose_traced_pipeline / segment_span in route_compiler.rs.

kind_hint: SpanKindHint

Span kind for this step’s step span, stamped by StepCompilerRegistry::compile_step from BuilderStep::span_kind_hint. Internal for steps built outside the registry. Read by compose_traced_pipeline in route_compiler.rs.

Stop

Stop EIP marker. run_steps produces PipelineOutcome::Stopped(ex) without invoking a Tower service. Replaces StopService (Task 7).

Segment

Outcome-aware structural EIP segment. run_steps invokes segment.run(ex) and matches on the returned PipelineOutcome. See ADR-0025.

Fields

segment: OutcomeSegment

body_contract: Option<BodyType>

lifecycle: Option<Vec<Arc<dyn StepLifecycle>>>

Lifecycle handles from children nested inside this segment. Option<Vec<...>> (not Option<Arc<...>>) because multiple stateful children (e.g. Idempotent+Resequencer inside Filter) each register independently.

label: Option<Arc<str>>

Stable span name, same contract as CompiledStep::Process’s label field.

Trait Implementations

impl Clone for CompiledStep

fn clone(&self) -> CompiledStep

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CompiledStep

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.