Struct Step 

pub struct Step {

    pub id: StepId,
    pub parent_step_id: Option<StepId>,
    pub step_type: StepType,
    pub name: String,
    pub state: StepState,
    pub input: Option<String>,
    pub output: Option<String>,
    pub error: Option<ExecutionError>,
    pub duration_ms: Option<u64>,
    pub started_at: Option<i64>,
    pub ended_at: Option<i64>,
    pub source: Option<StepSource>,
    pub callable_id: Option<String>,
    pub callable_type: Option<CallableType>,
}

Step - a distinct action within an execution

@see packages/enact-schemas/src/streaming.schemas.ts - stepEventDataSchema

Fields

id: StepId

Unique step ID

parent_step_id: Option<StepId>

Parent step (for nested operations)

step_type: StepType

Step type

name: String

Step name/label

state: StepState

Current state (matches state in TypeScript schema)

input: Option<String>

Input to this step

output: Option<String>

Output from this step

error: Option<ExecutionError>

Structured error (if failed) - see feat-02 Error Taxonomy

duration_ms: Option<u64>

Duration in milliseconds

started_at: Option<i64>

Timestamp when step started (unix millis)

ended_at: Option<i64>

Timestamp when step ended (unix millis)

source: Option<StepSource>

Source/origin of this step (how/why it was created)

callable_id: Option<String>

Callable ID (stable identifier for billing/traceability) Unlike name which can change, this provides a stable reference.

callable_type: Option<CallableType>

Callable type (for billing differentiation and audit trails)

Implementations

impl Step

pub fn new(step_type: StepType, name: impl Into<String>) -> Self

Create a new step

pub fn nested( parent_id: &StepId, step_type: StepType, name: impl Into<String>, ) -> Self

Create a nested step under a parent

pub fn with_input(self, input: impl Into<String>) -> Self

Set input

pub fn with_source(self, source: StepSource) -> Self

Set source/origin of this step

pub fn with_callable( self, callable_id: impl Into<String>, callable_type: CallableType, ) -> Self

Set callable info (for billing/traceability)

Unlike name which can change, callable_id provides a stable reference for cost attribution and audit trails.

Trait Implementations

impl Clone for Step

fn clone(&self) -> Step

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Step

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Step

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Step

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

where __S: Serializer,

Serialize this value into the given Serde serializer.