Struct DerError 

pub struct DerError { /* private fields */ }

Opaque wrapper around an underlying ASN.1 / DER error.

Carries a Display message identical to the wrapped der::Error so diagnostic output is preserved, but does not expose the underlying type in the public API. This insulates callers from semver-breaking changes in the der crate’s error variants.

Construct via DerError::new (or implicitly via [From<der::Error> for Error]). Sibling workspace crates that wrap DER decoding failures in their own Error enums (pkix-revocation, pkix-truststore) call DerError::new directly.

Serde wire form

When the serde feature is enabled, DerError (de)serializes via its Display message as a single String field. Because der::Error does not itself carry a textual message — its Display is derived from der::ErrorKind — round-trip is lossy: a deserialized DerError preserves the original Display output verbatim but its std::error::Error::source is None because the original der::Error value cannot be reconstructed from a free-form string. This trade is acceptable for diagnostic error types; the success type (ValidatedPath) round-trips losslessly because all its fields are canonically DER-encodable.

Implementations

impl DerError

pub fn new(e: Error) -> Self

Construct a DerError from a real der::Error.

The original der::Error is preserved internally so std::error::Error::source returns it; the rendered Display message is cached so the diagnostic survives serde round-trips. See the type-level rustdoc for the round-trip fidelity contract.

Exposed to permit sibling workspace crates (pkix-revocation, pkix-truststore) to construct their own Error::Der-equivalent variants from der::Error results without going through the pkix_path::Error::from(der::Error) conversion (which would produce a pkix_path::Error, not the sibling crate’s Error).

Trait Implementations

impl Clone for DerError

fn clone(&self) -> DerError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DerError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DerError

Available on crate feature serde only.

fn deserialize<D: Deserializer<'de>>(d: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Display for DerError

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

Formats the value using the given formatter.

impl Eq for DerError

impl Error for DerError

Available on crate feature std only.

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 DerError

fn eq(&self, other: &Self) -> 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 Serialize for DerError

Available on crate feature serde only.

fn serialize<S: Serializer>(&self, s: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.