Enum Error 

#[non_exhaustive]
pub enum Error {
    AuthenticationFailed,
    InvalidLength {
        context: ErrorContext,
        actual: usize,
        constraint: LengthConstraint,
    },
    InvalidValue {
        context: ErrorContext,
        actual: u64,
        constraint: ValueConstraint,
    },
    InvalidEncoding {
        context: ErrorContext,
    },
    InvalidKey {
        context: ErrorContext,
    },
    MissingData {
        context: ErrorContext,
    },
    InvalidState {
        context: ErrorContext,
    },
    ArithmeticOverflow {
        context: ErrorContext,
    },
    AllocationFailed {
        context: ErrorContext,
    },
    Io(Error),
}

Errors generated by Dryoc.

Variants are structured so callers can handle failures without parsing the human-readable message. Display text is not part of the API contract.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

AuthenticationFailed

Authentication or signature verification failed.

InvalidLength

A byte string or buffer had an invalid length.

Fields

context: ErrorContext

The input or output whose length was invalid.

actual: usize

The supplied length.

constraint: LengthConstraint

The required length constraint.

InvalidValue

A numeric parameter was outside its supported range.

Fields

context: ErrorContext

The parameter whose value was invalid.

actual: u64

The supplied value.

constraint: ValueConstraint

The required value constraint.

InvalidEncoding

Encoded data was malformed or unsupported.

Fields

context: ErrorContext

The encoded field or format that was invalid.

InvalidKey

A cryptographic key was invalid or unsafe to use.

Fields

context: ErrorContext

The key whose value was invalid.

MissingData

Required data was absent.

Fields

context: ErrorContext

The missing field or value.

InvalidState

The requested operation was invalid for the current state.

Fields

context: ErrorContext

The state or operation that was invalid.

ArithmeticOverflow

An arithmetic operation overflowed.

Fields

context: ErrorContext

The value being calculated.

AllocationFailed

Memory required for an operation could not be allocated.

Fields

context: ErrorContext

The input or operation requiring the allocation.

Io(Error)

An operating-system I/O operation failed.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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<Error> for Error

fn from(error: Error) -> Self

Converts to this type from the input type.