Struct MessageStarted 

#[non_exhaustive]
pub struct MessageStarted<'a> {
    pub message_id: &'a str,
    pub workflows_considered: usize,
}

A message run beginning.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

message_id: &'a str

The message’s id.

workflows_considered: usize

How many workflows are about to be considered. Not how many will run — conditions and rollout gates have not been evaluated yet.

How many actually ran is deliberately absent here and from MessageFinished: it is exactly the number of ExecutionObserver::workflow_started callbacks between the two, so carrying it as well would duplicate the event stream and cost a counter threaded through the execution path.

Trait Implementations

impl<'a> Debug for MessageStarted<'a>

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

Formats the value using the given formatter.