Enum EncodeError 

#[non_exhaustive]
pub enum EncodeError {
    GlobalPayloadTooLong {
        len: usize,
    },
    MissingDestination {
        mti: Mti,
    },
    UnexpectedDestination {
        mti: Mti,
    },
    MtiTooWide {
        mti: Mti,
    },
    DatagramTooLong {
        len: usize,
    },
}

Why Message::try_to_frames refused to encode a message.

use rolcb::{EncodeError, Message, Mti};

let big = Message::Datagram { dest: 0x456, data: vec![0; 73] };
assert_eq!(big.try_to_frames(0x123), Err(EncodeError::DatagramTooLong { len: 73 }));

let no_dest = Message::Other { mti: Mti(0x0DA8), dest: None, payload: vec![] };
assert_eq!(
    no_dest.try_to_frames(0x123),
    Err(EncodeError::MissingDestination { mti: Mti(0x0DA8) })
);

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

GlobalPayloadTooLong

A global message’s payload is longer than one CAN frame (8 bytes).

Fields

len: usize

The payload length.

MissingDestination

The MTI is addressed (bit 3 set) but the message has no destination.

Fields

mti: Mti

The MTI.

UnexpectedDestination

The MTI is global but the message carries a destination.

Fields

mti: Mti

The MTI.

MtiTooWide

The MTI has bits above bit 11 set and is not Mti::DATAGRAM, so it does not fit the 12-bit CAN-MTI field (e.g. stream MTIs, which need stream frames this crate does not build).

Fields

mti: Mti

The MTI.

DatagramTooLong

A datagram is longer than MAX_DATAGRAM (72) bytes.

Fields

len: usize

The payload length.

Trait Implementations

impl Clone for EncodeError

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 EncodeError

impl Debug for EncodeError

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

Formats the value using the given formatter.

impl Display for EncodeError

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

Formats the value using the given formatter.

impl Eq for EncodeError

impl Error for EncodeError

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 Hash for EncodeError

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for EncodeError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for EncodeError