Struct StateScope 

pub struct StateScope<'a> {
    pub state: &'a ExecutionState,
    pub local: Option<(&'a str, &'a Value)>,
    pub own_output: Option<(&'a str, &'a Value)>,
    pub failure: Option<Value>,
    pub event: Option<(String, Value)>,
}

Expression scope over an execution, optionally with a loop variable bound and with one step’s output overridden (an element’s own output inside its compensation).

Fields

state: &'a ExecutionState

local: Option<(&'a str, &'a Value)>

own_output: Option<(&'a str, &'a Value)>

failure: Option<Value>

failure inside on handlers: { reason, code, message }.

event: Option<(String, Value)>

Inside an on event instance: its key (on_event:<signal>@<seq>) and the signal payload (event).

Implementations

impl<'a> StateScope<'a>

pub fn new(state: &'a ExecutionState) -> Self

Trait Implementations

impl Scope for StateScope<'_>

fn input(&self) -> &Value

fn step_output(&self, step: &str) -> Option<&Value>

Some(Value::Null) for a skipped step, None if the step has not completed.

fn execution_field(&self, field: &str) -> Option<Value>

fn local(&self, name: &str) -> Option<&Value>

The value of a loop variable, if one is bound.