Enum ReserveExactError 

pub enum ReserveExactError {
    NotSupported,
    ReserveFailed(Box<dyn Error + Sync + Send>),
    ExactSizeMismatch {
        expected: usize,
        reserved: usize,
    },
}

An error indicating that reserving exact capacity for a buffer failed.

Variants

NotSupported

Reservation is not supported.

ReserveFailed(Box<dyn Error + Sync + Send>)

Reservation failed.

ExactSizeMismatch

Reserved size does not match the expected size.

Fields

expected: usize

Expected size to reserve

reserved: usize

Actual size reserved

Implementations

impl ReserveExactError

pub fn is_not_supported(&self) -> bool

Check if the error is NotSupported

Trait Implementations

impl Debug for ReserveExactError

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

Formats the value using the given formatter.

impl Display for ReserveExactError

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

Formats the value using the given formatter.

impl Error for ReserveExactError

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.

impl From<ReserveError> for ReserveExactError

fn from(err: ReserveError) -> ReserveExactError

Converts to this type from the input type.