Enum DecodeError 

#[non_exhaustive]
pub enum DecodeError {
    UnexpectedEof,
    InvalidFunctionCode,
    InvalidLength,
    InvalidValue,
    InvalidCrc,
    Unsupported,
    Message(&'static str),
}

Errors that can occur while decoding Modbus data from an input buffer.

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.

UnexpectedEof

The input buffer ended before the expected data was fully read.

InvalidFunctionCode

The function code byte is invalid (0x00 or has the exception bit set).

InvalidLength

A length field does not match the actual data.

InvalidValue

A field value is outside the allowed range.

InvalidCrc

The CRC check failed (RTU framing).

Unsupported

The operation is not supported.

Message(&'static str)

A descriptive error message.

Trait Implementations

impl Clone for DecodeError

fn clone(&self) -> DecodeError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DecodeError

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

Formats the value using the given formatter.

impl Display for DecodeError

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

Formats the value using the given formatter.

impl Error for DecodeError

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 DecodeError

fn eq(&self, other: &DecodeError) -> 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 Copy for DecodeError

impl Eq for DecodeError

impl StructuralPartialEq for DecodeError