Enum Error 

pub enum Error {
    InvalidMajorType(u8, u8),
    InvalidAdditionalInfo(u8),
    UnexpectedEof,
    NonCanonical,
    InvalidUtf8,
    TrailingBytes,
    UnexpectedItemCount(u64, usize),
    UnsupportedType(u8),
    IntegerOverflow(bool, u64, u64),
    DuplicateMapKey(i64),
    InvalidMapKeyOrder(i64, i64),
    MaxDepthExceeded(usize),
    DecodeFailed(String),
}

Available on crate feature cbor only.

Failures of encoding and decoding CBOR data.

Variants

InvalidMajorType(u8, u8)

The next item has the first major type where the second was expected.

InvalidAdditionalInfo(u8)

The additional info bits name an encoding outside the supported subset, indefinite lengths or reserved values.

UnexpectedEof

The data ended inside an item.

NonCanonical

An integer or length is not in its shortest form.

InvalidUtf8

A text string is not valid UTF-8. Raised by Decoder::decode_text and verify.

TrailingBytes

Bytes follow the decoded item. decode and verify reject them.

UnexpectedItemCount(u64, usize)

An array or byte string has the first length where the target type needs the second.

UnsupportedType(u8)

The major type is outside the supported subset, tags, floats or simple values other than booleans and null. Raised by verify and when a Raw item is skipped over.

IntegerOverflow(bool, u64, u64)

An integer does not fit the target type. The flag marks a negative value, followed by the wire value and the largest one allowed. Raised by Decoder::decode_int.

DuplicateMapKey(i64)

A map carries the key twice, on decoding or when MapEncodeBuffer::finish_to assembles one.

InvalidMapKeyOrder(i64, i64)

Map keys are out of deterministic order. The first key was read after the second but sorts before it.

MaxDepthExceeded(usize)

Arrays or maps nest deeper than the limit. Raised by verify and when a Raw item is skipped over.

DecodeFailed(String)

A type’s own validation rejected the decoded value, a key of the wrong size, an unknown map key or a missing required one. The message names the problem.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

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, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Error

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

Available on crate feature cose only.

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

Available on crate feature cwt only.

fn from(source: Error) -> Self

Converts to this type from the input type.

impl PartialEq for Error

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Error