Enum SecretError 

pub enum SecretError {
    EntropyUnavailable,
    EntropyUnsupported,
    Rejected,
}

A source of unguessable values could not produce one.

The variants exist to separate the two failures a caller has to tell apart. A source that cannot reach the operating system’s entropy is an environment problem, fixed by restarting or by moving somewhere the source exists; Rejected means this crate’s own encoder produced a value its own value object refused, which is an internal invariant and a bug here. One unit error for both would make the second indistinguishable from the first, and the second is the one worth a bug report.

Variants

EntropyUnavailable

The operating system’s entropy source could not be read.

EntropyUnsupported

This platform provides no usable entropy source.

Rejected

The value drawn was refused by the value object that owns it.

An adapter drawing 32 bytes and encoding them base64url produces 43 characters drawn from a subset of the unreserved set, so it cannot fail the length or charset rule it is checked against. Reaching this variant means the encoding and that rule have diverged.

Trait Implementations

impl Clone for SecretError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SecretError

impl Debug for SecretError

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

Formats the value using the given formatter.

impl Display for SecretError

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

Formats the value using the given formatter.

impl Eq for SecretError

impl Error for SecretError

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 PartialEq for SecretError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SecretError