Struct TryReadError 

pub struct TryReadError { /* private fields */ }

An error that occurs when trying to read data from a buffer with insufficient bytes.

This error indicates that a read operation failed because the buffer does not contain enough bytes to satisfy the request. Failed read operations do not consume any bytes - the buffer position remains unchanged.

Implementations

impl TryReadError

pub const fn new(requested: NonZeroUsize, available: usize) -> Self

Creates a new TryReadError with the requested and available bytes.

Panics

• If requested <= available (this would not be an error condition).
• The requested value must be a non-zero.

pub const fn requested(&self) -> NonZeroUsize

Returns the number of bytes requested for the operation.

This is the minimum number of bytes needed for the operation to succeed.

pub const fn available(&self) -> usize

Returns the number of bytes available in the buffer.

This is the actual number of bytes that were available when the operation failed.

Trait Implementations

impl Clone for TryReadError

fn clone(&self) -> TryReadError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TryReadError

impl Debug for TryReadError

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

Formats the value using the given formatter.

impl Display for TryReadError

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

Formats the value using the given formatter.

impl Eq for TryReadError

impl Error for TryReadError

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<TryGetError> for TryReadError

Available on crate feature bytes_1 only.

fn from(e: TryGetError) -> Self

Converts to this type from the input type.

impl From<TryPeekError> for TryReadError

fn from(e: TryPeekError) -> Self

Converts to this type from the input type.

impl From<TryReadError> for Error

Available on crate feature std only.

fn from(e: TryReadError) -> Self

Converts to this type from the input type.

impl PartialEq for TryReadError

fn eq(&self, other: &TryReadError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for TryReadError