Enum CborError 

pub enum CborError {
    TrailingBytes,
    UnexpectedEnd,
    InputTooLarge,
    OutputTooLarge,
    OffsetOverflow,
    LengthTooLarge,
    IntegerOutOfRange,
    NonCanonicalInteger,
    TruncatedArgument,
    TruncatedBytes,
    InvalidUtf8,
    MapKeyMustBeString,
    MapKeysOutOfOrder,
    DisallowedSimpleValue {
        value: u64,
    },
    DisallowedMajorType {
        major: u8,
    },
    UnsupportedAdditionalInfo,
    ContainerLengthExceedsInput,
    DepthExceeded,
}

Error returned when decoding fails to conform to the DAG-CBOR profile.

Decoding fails closed: any malformed or non-canonical input yields one of these variants rather than a partial or best-effort value.

Variants

TrailingBytes

Extra bytes remain after decoding the top-level value.

UnexpectedEnd

Input ended before the current value was fully decoded.

InputTooLarge

The encoded input exceeded the absolute DAG-CBOR boundary cap.

OutputTooLarge

Encoding would exceed the absolute DAG-CBOR boundary cap.

OffsetOverflow

Computing an offset into the input would overflow.

LengthTooLarge

A declared length is too large to represent as a platform usize.

IntegerOutOfRange

An encoded integer falls outside the supported i64 range.

NonCanonicalInteger

An integer used a longer-than-minimal (non-canonical) encoding.

TruncatedArgument

The numeric argument (length/value) bytes were truncated.

TruncatedBytes

A byte string ended before its declared length was read.

InvalidUtf8

A text string contained bytes that are not valid UTF-8.

MapKeyMustBeString

A map key was not a text string, which DAG-CBOR requires.

MapKeysOutOfOrder

Map keys were not in the canonical (sorted) order DAG-CBOR requires.

DisallowedSimpleValue

A CBOR simple value not permitted by the DAG-CBOR profile was found.

Fields

value: u64

The CBOR simple-value code that was rejected.

DisallowedMajorType

A CBOR major type not permitted by the DAG-CBOR profile was found.

Fields

major: u8

The CBOR major-type number that was rejected.

UnsupportedAdditionalInfo

An oversized or indefinite-length additional-info value was found.

ContainerLengthExceedsInput

A declared array/map element count is larger than the remaining input could possibly satisfy. Rejected before allocating so an attacker-chosen length prefix cannot drive an out-of-memory abort.

DepthExceeded

Nesting exceeded MAX_NESTING_DEPTH. Bounds recursion so a deeply nested input cannot overflow the stack.

Trait Implementations

impl Clone for CborError

fn clone(&self) -> CborError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CborError

impl Debug for CborError

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

Formats the value using the given formatter.

impl Display for CborError

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

Formats the value using the given formatter.

impl Eq for CborError

impl Error for CborError

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 CborError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CborError