Trait StepContext 

pub trait StepContext {
    // Required methods
    fn step_index(&self, step_id: &str) -> Option<usize>;
    fn is_completed(&self, step_index: usize) -> bool;
    fn get_result(&self, step_index: usize) -> Option<&FlowResult>;
    fn get_input(&self) -> Option<&ValueRef>;
    fn get_variable(&self, name: &str) -> Option<ValueRef>;
    fn get_variable_secrets(&self, name: &str) -> Secrets;
}

Provides access to execution state for expression evaluation.

This trait allows ValueExpr::needed_steps() to determine which steps are needed to evaluate an expression, and ValueExpr::resolve() to evaluate expressions using available state.

Required Methods

fn step_index(&self, step_id: &str) -> Option<usize>

Get the index of a step by its ID.

Returns None if the step ID is not found in the workflow.

fn is_completed(&self, step_index: usize) -> bool

Check if a step has completed execution.

A step is completed if it has a result (success, skipped, or failed).

fn get_result(&self, step_index: usize) -> Option<&FlowResult>

Get the result of a completed step.

Returns None if the step has not completed or the index is invalid.

fn get_input(&self) -> Option<&ValueRef>

Get the workflow input value.

Returns None if input is not available in this context.

fn get_variable(&self, name: &str) -> Option<ValueRef>

Get a variable value by name.

Returns None if the variable is not defined. The implementation may fall back to schema defaults before returning None. Returns an owned ValueRef since defaults may be computed.

fn get_variable_secrets(&self, name: &str) -> Secrets

Get the secrets configuration for a variable.

Used for redacting sensitive values in logs.

Implementors