Struct StepBase 

pub struct StepBase {
    pub step_id: StepId,
    pub effect_hash: Hash,
    pub judge_hash: Hash,
    pub preflight: Option<Vec<AssertionIR>>,
    pub retry: Option<RetryPolicy>,
    pub timeout_ms: Option<u64>,
    pub handlers: Option<Vec<HandlerBinding>>,
    pub checkpoint: bool,
}

Common step envelope (02 §3).

Deliberately NOT closed (baseline exemption class 3): each StepIR variant composes it and closes itself. stepId is identity, the two hashes are content — the pivot of the resume-alignment mechanism; stepId deliberately participates in neither hash.

Fields

step_id: StepId

Author-provided, flow-unique, stable step identity.

effect_hash: Hash

Canonical hash of “what this step does to the world” (02 §12.3).

judge_hash: Hash

Canonical hash of “how this step is judged” (02 §12.3).

preflight: Option<Vec<AssertionIR>>

Pre-entry world probes; double as resume drift detection (spine §6.7-C). Distinct from post-hoc assertions (expect).

retry: Option<RetryPolicy>

Retry policy — applies to the act phase only (spine §6.5 mount 1).

timeout_ms: Option<u64>

Step budget in milliseconds.

handlers: Option<Vec<HandlerBinding>>

Step-level handler hooks; override flow-level ones.

checkpoint: bool

Whether to materialize a checkpoint at this step boundary. Required because sealed IR materializes all defaulted fields (single-representation rule; default true, false inside macro expansions).

Trait Implementations

impl Clone for StepBase

fn clone(&self) -> StepBase

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StepBase

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StepBase

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for StepBase

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for StepBase

fn eq(&self, other: &StepBase) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for StepBase

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for StepBase