Trait metered::metric::OnResult

source · [−]
pub trait OnResult<R>: Enter {
    fn on_result(&self, enter: Self::E, _result: &R) -> Advice { ... }
    fn leave_scope(&self, _enter: Self::E) -> Advice { ... }
}
Expand description

Re-export aspect-rs’s types to avoid crates depending on it. The OnResult trait is implemented on Aspects to get notified when an expression has returned.

Provided Methods

Called when an expression has returned.

This function is passed both the enter return value, and the expression return value.

on_result does not get a chance to alter the returned result. Use OnResultMut for that purpose.

Called when an expression has exited, but the return value isn’t known. This can happen because of a panic, or if control flow bypasses a macro. This is also called by the default implementation of on_result.

Implementors