Enum CodecError 

pub enum CodecError {
    HeaderTooShort,
    UnsupportedVersion(u8),
    ReservedTokenLength(u8),
    TokenTruncated,
    OptionHeaderTruncated,
    OptionDeltaIs15,
    OptionLengthIs15,
    OptionValueTruncated,
    PayloadMarkerWithoutPayload,
    EncodeTokenTooLong,
}

Codec error — spec-conformant “MUST be processed as a message format error” cases.

Variants

HeaderTooShort

Header too short (< 4 bytes).

UnsupportedVersion(u8)

Spec §3 — “Implementations MUST set this field to 1 (01 binary). Other values are reserved […]. Messages with unknown version numbers MUST be silently ignored.” We return an explicit error to the caller.

ReservedTokenLength(u8)

Spec §3 — “Lengths 9-15 are reserved, MUST NOT be sent, and MUST be processed as a message format error.”

TokenTruncated

Token does not fit in the available bytes.

OptionHeaderTruncated

Option header does not fit in the available bytes.

OptionDeltaIs15

Spec §3.1 — “15: Reserved for the Payload Marker. If the field is set to this value but the entire byte is not the payload marker, this MUST be processed as a message format error.”

OptionLengthIs15

Spec §3.1 — Option length 15 reserved.

OptionValueTruncated

Option value does not fit in the available bytes.

PayloadMarkerWithoutPayload

Spec §3 — “The presence of a marker followed by a zero-length payload MUST be processed as a message format error.”

EncodeTokenTooLong

Token length is > 8 on encode (caller error).

Trait Implementations

impl Clone for CodecError

fn clone(&self) -> CodecError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CodecError

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

Formats the value using the given formatter.

impl Display for CodecError

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

Formats the value using the given formatter.

impl Eq for CodecError

impl Error for CodecError

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 CodecError

fn eq(&self, other: &CodecError) -> 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 CodecError