Struct ExecStep 

#[non_exhaustive]
pub struct ExecStep {
    pub action_name: Cow<'static, str>,
    pub result: ExecResult,
    pub details: StepKind,
}

Observable record of a single action’s execution (or planned execution).

Marked #[non_exhaustive] so adding audit fields (duration, dry-run tag, plugin-contributed metadata) is a non-breaking change for downstream library consumers.

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.

action_name: Cow<'static, str>

Short stable action identifier (one of the action-key strings, or a plugin-contributed label in future milestones).

Typed as Cow<'static, str> so built-in executors can emit zero-cost static strings via Cow::Borrowed while M4 plugins can contribute heap-allocated names via Cow::Owned.

result: ExecResult

Coarse outcome.

details: StepKind

Variant-specific detail.

Trait Implementations

impl Clone for ExecStep

fn clone(&self) -> ExecStep

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExecStep

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

Formats the value using the given formatter.