Enum PoolError 

pub enum PoolError<E> {
    Factory(E),
    Panic(PanicError),
}

A factory failure or an unwinding panic during a pool operation.

Variants

Factory(E)

The factory returned an error without panicking.

Panic(PanicError)

The operation panicked and its payload was captured.

Implementations

impl<E> PoolError<E>

pub fn catch<T>(operation: impl FnOnce() -> Result<T, E>) -> Result<T, Self>

Run an operation, preserving factory errors and capturing unwind panics.

The operation must leave any externally observable state valid when it unwinds. Panics configured to abort and panics in the panic hook cannot be captured.

Errors

Returns Self::Factory for a returned error or Self::Panic for an unwinding panic. Successful work completed before a panic is retained.

Trait Implementations

impl<E: Debug> Debug for PoolError<E>

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

Formats the value using the given formatter.

impl<E: Display> Display for PoolError<E>

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

Formats the value using the given formatter.

impl<E: Error + 'static> Error for PoolError<E>

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.